Rotating shaft assembly and electronic equipment

Abstract

The invention relates to a rotating shaft assembly and electronic equipment, the rotating shaft assembly comprises a shaft seat and a decorative plate assembly, the two sides of the shaft seat in the width direction of the rotating shaft assembly are rotatably connected with a support, the decorative plate assembly comprises a first decorative plate, a second decorative plate and a third decorative plate, and the third decorative plate is connected with the shaft seat in the thickness direction of the rotating shaft assembly; the first decorative plate and the second decorative plate are located on the two sides of the third decorative plate in the width direction of the rotating shaft assembly respectively and connected with the corresponding supports in the thickness direction of the rotating shaft assembly, the first decorative plate and the third decorative plate are rotationally connected through elastic connecting pieces, and the second decorative plate and the third decorative plate are rotationally connected through elastic connecting pieces. According to the rotating shaft assembly, the three decorative plates are integrally designed, so that the three decorative plates do not need to be mutually positioned in the assembling process, the assembling difficulty of the rotating shaft assembly is reduced, meanwhile, the relative position precision of the three decorative plates is improved, and the assembling precision of the rotating shaft assembly is improved.

Description

[0001] This application is a divisional application of the Chinese Patent Application No. 202411296098.X, with the filing date of September 18, 2024, and the title of "A Shaft Assembly and Electronic Equipment". TECHNICAL FIELD

[0002] The present application relates to the technical field of electronic equipment, in particular to a shaft assembly and electronic equipment. BACKGROUND

[0003] With the development of science and technology, foldable electronic equipment has been widely used by users. As an important component of foldable electronic equipment, the shaft assembly is used to realize the foldable function of the foldable electronic equipment. However, the current shaft assembly has the problems of high assembly difficulty and low assembly precision. SUMMARY

[0004] The purpose of the present application is to provide a shaft assembly and electronic equipment to solve the problem of high assembly difficulty and low assembly precision of the shaft assembly in the prior art.

[0005] In a first aspect, the embodiments of the present application provide a shaft assembly, which comprises a shaft seat and a decorative plate assembly. The shaft seat is rotatably connected with a support on both sides along the width direction of the shaft assembly. The decorative plate assembly comprises a first decorative plate, a second decorative plate and a third decorative plate. The third decorative plate is connected with the shaft seat along the thickness direction of the shaft assembly. The first decorative plate and the second decorative plate are respectively located on both sides of the third decorative plate along the width direction of the shaft assembly, and are connected with the corresponding supports along the thickness direction of the shaft assembly. The first decorative plate and the third decorative plate, and the second decorative plate and the third decorative plate are rotatably connected through elastic connecting pieces.

[0006] The elastic connecting pieces connect the first decorative plate, the second decorative plate and the third decorative plate into one whole, that is, the three decorative plates adopt an integrated design. This design makes it unnecessary to position the first decorative plate, the second decorative plate and the third decorative plate during reassembly, thereby reducing the assembly difficulty of the shaft assembly, simplifying the assembly steps of the shaft assembly and reducing the production cost of the shaft assembly. At the same time, the relative position precision between the first decorative plate, the second decorative plate and the third decorative plate is improved, thereby improving the assembly precision of the shaft assembly.

[0007] In a possible implementation manner, the elastic connecting piece comprises at least one elastic unit, and the elastic unit has a hollow region.

[0008] The hollow region provides a deformation space for the formation of the elastic connecting piece, so as to increase the deformation amount of the elastic connecting piece.

[0009] In a possible implementation, the elastic connecting piece comprises a first elastic layer and a second elastic layer along a thickness direction of the elastic connecting piece, and the first elastic layer and the second elastic layer are connected; wherein the first elastic layer and the second elastic layer each comprise at least one elastic unit, and the hollow region of the first elastic layer is arranged in a staggered manner with the hollow region of the second elastic layer.

[0010] By dividing the elastic connecting piece into a two-layer structure of the first elastic layer and the second elastic layer, the two elastic layers can shield the hollow regions of each other, so that there is no gap on the elastic connecting piece that connects the inside of the rotating shaft assembly and the outside of the rotating shaft assembly, thereby improving the protection effect of the elastic connecting piece on the internal structure of the rotating shaft assembly and improving the delicacy of the rotating shaft assembly as a whole. On the other hand, the above design enables the hollow regions of the two elastic layers to still provide space for the elastic deformation of the corresponding elastic units, thereby ensuring the overall elastic deformation amount of the elastic connecting piece.

[0011] In a possible implementation, a glue layer is arranged between the first elastic layer and the second elastic layer, and the first elastic layer and the second elastic layer are connected through the glue layer.

[0012] The connection between the first elastic layer and the second elastic layer is realized through the glue layer, which is conducive to improving the stability and reliability of the connection between the first elastic layer and the second elastic layer.

[0013] In a possible implementation, along a thickness direction of the rotating shaft assembly, the first decorative plate comprises a first plate body and a second plate body connected to each other; the second decorative plate comprises a third plate body and a fourth plate body connected to each other; and the third decorative plate comprises a fifth plate body and a sixth plate body connected to each other; along a width direction of the rotating shaft assembly, the first plate body, the third plate body, and the fifth plate body are connected through the first elastic layer; and the second plate body, the fourth plate body, and the sixth plate body are connected through the second elastic layer.

[0014] During the assembly of the rotating shaft assembly, the first plate body, the third plate body, and the fifth plate body can be connected into a whole structure through the first elastic layer, the second plate body, the fourth plate body, and the sixth plate body can be connected into a whole structure through the second elastic layer, and then the two whole structures can be connected together, thereby simplifying the assembly process of the rotating shaft assembly and reducing the assembly difficulty of the rotating shaft assembly.

[0015] In a possible implementation, the first plate body and the second plate body, the third plate body and the fourth plate body, and the fifth plate body and the sixth plate body are connected through the glue layer.

[0016] Each decorative panel has a multi-layer structure including an adhesive layer. After curing, the adhesive layer can provide a certain strength to the decorative panel, thereby improving the structural stability of the decorative panel, facilitating the extension of the service life of the decorative panel, and enhancing the overall stability and reliability of the rotating shaft assembly.

[0017] In a possible implementation, the elastic unit includes two first elastic segments extending along its length direction and two second elastic segments extending along its own width direction. The first elastic segment and the second elastic segment are connected to enclose the hollow area.

[0018] The elastic unit has a "mouth" - shaped structure, which is beneficial to improving the structural stability and reliability of the elastic connector itself and facilitating the elastic deformation of the elastic connector.

[0019] In a possible implementation, the elastic connector includes a plurality of the elastic units; along the length direction of the rotating shaft assembly, the elastic units are arranged continuously; along the width direction of the rotating shaft assembly, the elastic units are arranged at intervals, and adjacent elastic units are connected by a third elastic segment.

[0020] Along the width direction of the rotating shaft assembly, the interval between adjacent elastic units provides space for the deformation of the elastic unit in its own width direction, so as to increase the deformation amount of each elastic unit. Furthermore, the elastic connector can be elongated or compressed as the width of the rotating shaft assembly changes, so as to enable the electronic device to switch between the unfolded state, the first folded state, and the second folded state.

[0021] In a possible implementation, the rotating shaft assembly includes a support plate assembly for supporting the flexible display screen of the electronic device. Along the thickness direction of the rotating shaft assembly, the support plate assembly and the decorative panel assembly are connected to both sides of the shaft seat. The support plate assembly at least includes main support plates arranged on both sides of the shaft seat along the width direction of the rotating shaft assembly. Among them, the rotating shaft assembly further includes an elastic member. The elastic member is located between the main support plate and the shaft seat along the width direction of the rotating shaft assembly. 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 the first direction, during the process of the rotating shaft assembly switching from the unfolded state to the first folded state, the elastic member elongates to make the main support plate move away from the shaft seat. When the main support plate rotates relative to the shaft seat in the second direction, during the process of the rotating shaft assembly switching from the unfolded state to the second folded state, the elastic member contracts to make the main support plate close to the shaft seat, and the first direction is opposite to the second direction.

[0022] When the electronic device is switched from the unfolded state to the first folded state, the elastic member can be stretched along with the rotation of the main support plate, and the length of the elastic member is increased, thereby increasing the width of the rotating shaft assembly in the first folded state, facilitating the adaptation of the arc length of the bending area of the flexible display screen, so that the flexible display screen is not extruded, reducing the risk of cracking of the flexible display screen during folding, and improving the reliability of the electronic device. When the electronic device is switched from the unfolded state to the second folded state, the elastic member can be compressed along with the rotation of the main support plate, and the length of the elastic member is reduced, thereby reducing the width of the rotating shaft assembly in the second folded state, so that the rotating shaft assembly can be accommodated in the bending area of the flexible display screen and will not pull the bending area of the flexible display screen. The risk of cracking of the flexible display screen during folding is also reduced to improve the reliability of the electronic device.

[0023] In a possible implementation, when the rotating shaft assembly is in the first folded state, the main support plate and the shaft seat have a first space for accommodating the bending area of the flexible display screen, and when the rotating shaft assembly is in the second folded state, the main support plate and the shaft seat have a second space, and the bending area of the flexible display screen is used to cover the 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.

[0024] The rotating shaft assembly in the first folded state has a first space, so that the rotating shaft assembly provides sufficient accommodation space for the bending area of the flexible display screen, reducing the possibility of extrusion of the bending area of the flexible display screen by the rotating shaft assembly. The rotating shaft assembly in the second folded state has a second space, and because the arc length of the second space is less than the arc length of the first space, the rotating shaft assembly will not pull the bending area of the flexible display screen, reducing the risk of cracking of the flexible display screen during folding.

[0025] In a possible implementation, the elastic member includes a hollow part, and the hollow part penetrates through the elastic member along the thickness direction of the elastic member.

[0026] The hollow part provides a deformation space for the elastic member to increase the deformation amount of the elastic member to realize the change of the width of the rotating shaft assembly.

[0027] In a possible implementation, the elastic member includes a first elastic part, a second elastic part, and a third elastic part, the hollow part is arranged in the first elastic part, the first elastic part is connected to the shaft seat through the second elastic part, and the first elastic part is connected to the main support plate through the third elastic part.

[0028] The second and third elastic parts can have an "I"-shaped structure to achieve a stable and reliable connection between the first elastic part, the bearing seat, and the main support plate.

[0029] In one possible implementation, along the length of the shaft assembly, a plurality of elastic elements are connected between the main support plate and the shaft seat.

[0030] Setting multiple elastic elements can improve the stability of the connection between the main support plate and the bearing seat.

[0031] In one possible implementation, the support plate assembly further includes a secondary support plate disposed between the main support plate and the bearing seat along the width direction of the rotating shaft assembly. The elastic element is disposed on both 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 to the main support plate on the same side through the elastic element; the other end of the secondary support plate is rotatably connected to the bearing seat through the elastic element.

[0032] By incorporating a secondary support plate, the support effect of the hinge assembly on the flexible display screen is improved, reducing the possibility of the flexible display screen collapsing towards the side closer to the hinge assembly. This helps extend the service life of the flexible display screen and improves its stability and reliability. Simultaneously, the number of elastic elements in the width direction of the hinge assembly is increased. With an increased number of elastic elements, the overall elongation and compression of the elastic elements increase, meaning the variation in the width dimension of the hinge assembly increases, thus better meeting the needs of flexible display screen applications.

[0033] In one possible implementation, the pivot assembly further includes brackets disposed on both sides of the bearing seat along the width direction of the pivot assembly, and push rod assemblies disposed on both sides of the bearing seat along the width direction of the pivot 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 which is rotatably connected to the bearing seat. The first push rod is also capable of sliding relative to the bearing seat along the length direction of the pivot assembly.

[0034] When the electronic device is in the first folded state and the second folded state, the first push rod can support and limit the bracket. Since the main support plate is connected to the bracket, it also limits and constrains the main support plate, determining the position of the main support plate in the first folded state and the second folded state. This facilitates the matching of the shape of the hinge assembly with the shape of the flexible display screen, reducing the possibility of the flexible display screen being squeezed or stretched. At the same time, under the action of the first push rod, the main support plate provides reliable support for the flexible display screen, keeping the main support plate in its current position to improve the stability of the flexible display screen.

[0035] In a possible implementation, the shaft seat is provided with a guide rail extending along the length direction of the rotating shaft assembly and a moving piece connected with the guide rail, and one end of the first push rod is rotatably connected with the moving piece; when the rotating shaft assembly is switched between the first folding state, the unfolded state and the second folding state, the moving piece can move along the guide rail to change the included angle between the first push rod and the width direction of the rotating shaft assembly.

[0036] By arranging the guide rail, the stability of the moving piece moving along the length direction of the rotating shaft assembly is improved, thereby improving the stability of the first push rod moving and the motion precision of the rotating shaft assembly.

[0037] In a possible implementation, when the rotating shaft assembly is in the first folding state, the first push rod has a first included angle with the width direction of the rotating shaft assembly, and when the rotating shaft assembly is in the second folding state, the first push rod has a second included angle with the width direction of the rotating shaft assembly, and the first included angle is smaller than the second included angle.

[0038] When the electronic device is switched from the unfolded state to the first folding state, the first push rod can move along the length direction of the rotating shaft assembly to make the included angle between the first push rod and the width direction of the rotating shaft assembly smaller, and the length of the projection of the first push rod on the width direction of the rotating shaft assembly larger, so that the support can move away from the shaft seat, the width of the rotating shaft assembly is increased, and then matched with the arc length of the flexible display in the first folding state. Conversely, when the electronic device is switched from the unfolded state to the second folding state, the first push rod can move along the length direction of the rotating shaft assembly to make the included angle between the first push rod and the width direction of the rotating shaft assembly larger, and the length of the projection of the first push rod on the width direction of the rotating shaft assembly smaller, so that the first support can move close to the shaft seat, the width of the rotating shaft assembly is reduced, and then matched with the arc length of the flexible display in the second folding state.

[0039] In a possible implementation, the 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 support, and the second spherical part is rotatably connected with the moving piece.

[0040] By arranging the first spherical part and the second spherical part, the first push rod can rotate smoothly and stably between the support and the shaft seat.

[0041] In a 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, and the push rod assembly further comprises a second push rod, one end of the second push rod being rotatably connected to the secondary support plate on the same side, the other end of the second push rod being rotatably connected to the shaft seat and being capable of sliding relative to the shaft seat along the length direction of the rotating shaft assembly.

[0042] The second push rod supports and limits the secondary support plate, determines the position of the secondary support plate in the first folded state and the second folded state, and facilitates the matching of the form of the rotating shaft assembly and the form of the flexible display screen. At the same time, under the support of the second push rod, the secondary support plate is maintained at the current position, thereby reliably supporting the flexible display screen to improve the stability of the flexible display screen.

[0043] In a possible implementation, the first push rod is configured to support the bracket on the same side and limit the main support plate connected to the bracket at a position in the first folded state or a position in the second folded state via the bracket, and the second push rod is configured to support the secondary support plate on the same side and limit the secondary support plate at a position in the first folded state or a position in the second folded state, wherein in the first folded state, the main support plate, the secondary support plate, and the shaft seat enclose the first space, and in the second folded state, the main support plate, the secondary support plate, and the shaft seat enclose the second space.

[0044] The second push rod can provide a support force to the secondary support plate in a direction away from the flexible display screen, and stably maintain the secondary support plate at a preset position to provide sufficient accommodation space for the bending area of the flexible display screen. The space enclosed by the support plate, the secondary support plate, and the shaft seat matches the shape of the bending area of the flexible display screen to ensure that the flexible display screen is not squeezed or stretched. At the same time, since the forms of the support plates match the form of the flexible display screen, the reliability of the support of the support plates on the flexible display screen is improved, the possibility of the flexible display screen collapsing downward when pressed is reduced, and the operation experience of the user is improved.

[0045] In a possible implementation, the shaft seat is provided with a matching piece fixedly connected with the moving piece, the matching piece is provided with a matching groove along the length direction of the rotating shaft assembly, and one end of the second push rod is rotatably connected in the matching groove. When the rotating shaft assembly is switched between the first folded state, the unfolded state, and the second folded state, the second push rod can move along the matching groove to change the included angle between the second push rod and the width direction of the rotating shaft assembly.

[0046] The first push rod is connected with the second push rod through the moving piece and the matching piece. When the first push rod moves along the length direction of the rotating shaft assembly, the second push rod also moves, so as to improve the movement accuracy of the rotating shaft assembly and improve the reliability of the rotating shaft assembly.

[0047] In a possible implementation, the second push rod and the width direction of the rotating shaft assembly form a third included angle when the rotating shaft assembly is in the first folding state, and the second push rod and the width direction of the rotating shaft assembly form a fourth included angle when the rotating shaft assembly is in the second folding state, and the third included angle is smaller than the fourth included angle.

[0048] When the electronic device switches from the unfolded state to the first folding state, the second push rod can 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 becomes smaller, and the length of the projection of the second push rod on the width direction of the rotating shaft assembly becomes larger, so that the first sub support plate can move away from the shaft seat, and the width of the rotating shaft assembly increases, so as to match the arc length of the flexible display screen in the first folding state. When the electronic device switches from the unfolded 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 becomes larger, and the length of the projection of the second push rod on the width direction of the rotating shaft assembly becomes smaller, so that the first sub support plate can move close to the shaft seat, that is, the width of the rotating shaft assembly decreases, so as to match the arc length of the flexible display screen in the second folding state.

[0049] In a possible implementation, the two ends of the second push rod are respectively provided with a third spherical part and a fourth spherical part, the third spherical part is rotatably connected with the sub support plate, the fourth spherical part is rotatably arranged in the matching groove, and the fourth spherical part can move along the matching groove.

[0050] By arranging the third spherical part and the fourth spherical part, the second push rod can rotate smoothly and smoothly between the sub support plate and the shaft seat.

[0051] In a possible implementation, the rotating shaft assembly further comprises a support arranged on both sides of the shaft seat along the width direction of the rotating shaft assembly, the support is rotatably connected with the shaft seat, and the support is rotatably connected with the main support plate on the same side through at least one flexible piece.

[0052] By arranging the flexible piece, the rotatable connection relationship between the support and the main support plate is realized, and the stability and reliability of the connection between the support and the main support plate are improved.

[0053] In a possible implementation, a plurality of flexible members are arranged between the support and the main support plate on the same side of the hinge assembly in the length direction of the hinge assembly.

[0054] The plurality of flexible members improve the stability and reliability of the connection between the main support plate and the support.

[0055] In a possible implementation, the support includes a first body portion and a second body portion, the flexible members are arranged in the first body portion, the second body portion is connected to the first body portion, and the thickness of the second body portion gradually decreases away from the first body portion, and when the hinge assembly switches between the first folding state and the second folding state, the main support plate can be rotated to the side close to the support until the main support plate abuts against the second body portion.

[0056] In the first folding state, the main support plate abuts against the support, so that the main support plate is arranged to tilt away from the flexible display screen, thereby matching the shape of the bending area of the flexible display screen, improving the support effect of the main support plate on the flexible display screen, and providing a space for the bending area of the flexible display screen, reducing the possibility of the flexible display screen being squeezed by the main support plate, to ensure normal use of the flexible display screen. When the electronic device is in the second folding state, the hinge assembly is accommodated in the bending area of the flexible display screen, and the main support plate abuts against the support, so that the main support plate is arranged to tilt away from the flexible display screen, thereby matching the shape of the bending area of the flexible display screen, to improve the support effect on the flexible display screen and reduce the possibility of the flexible display screen being pulled.

[0057] In a possible implementation, the hinge assembly further includes supports arranged on both sides of the shaft seat along the width direction of the hinge assembly, the supports are rotatably connected to the shaft seat, the supports are connected to a swing arm group, the shaft seat is provided with a sliding assembly, the swing arm group is rotatably connected to 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, wherein the sliding assembly at least includes a first sliding member, the first sliding member is provided with a first sliding groove, the swing arm group includes a connecting portion, the connecting portion is slidably arranged in the first sliding groove, the shaft seat has a mounting space, the first sliding member is located in the mounting space, and the first sliding member can extend out of the mounting space during rotation of the support in the first direction.

[0058] By arranging the sliding assembly capable of sliding relative to the shaft seat on the shaft seat, sufficient sliding stroke is provided for the swing arm group, so that each swing arm group can rotate inwardly and outwardly, that is, by arranging the sliding assembly, the rotation angle of each swing arm is increased, so that the inward folding and outward folding of the electronic device are realized.

[0059] On the other hand, the sliding assembly can adjust the distance between the swing arm and the shaft seat, for example, when the electronic device is switched from the unfolded state to the first folded state, the sliding assembly can extend away from the shaft seat, increase the distance between the swing arm and the shaft seat, that is, increase the width of the shaft assembly as a whole, so as to adapt the shaft assembly to the flexible display screen in the first folded state, and reduce the possibility of the shaft assembly extruding the flexible display screen in the first folded state.

[0060] In a possible implementation, the mounting space is provided with a first guide groove; the first sliding member has a first guide protrusion, which is located in the first guide groove and can slide along the first guide groove.

[0061] By matching the first guide protrusion with the first guide groove, the movement of the first sliding member is guided, so as to improve the stability and reliability of the sliding of the first sliding member. The first guide groove can be an arc-shaped groove, and the first guide protrusion can be an arc-shaped protrusion, so that the first sliding member can slide along an arc-shaped track in the mounting space.

[0062] In a possible implementation, the swing arm group includes a main body portion, one end of the main body portion is connected with the connecting portion, and the other end is connected with the support; the first sliding member has a first notch, and the mounting space has a second notch in communication with the first notch, and the first notch and the second notch are used for avoiding the main body portion.

[0063] The first notch and the second notch can avoid the main body portion of the swing arm group, so as to reduce the possibility of interference between the swing arm group and the first sliding member and the shaft seat, so as to realize the smooth rotation of the swing arm group.

[0064] In a possible implementation, the sliding assembly further includes a second sliding member, the second sliding member is slidably arranged in the mounting space, the second sliding member is provided with a second sliding groove, and the first sliding member is slidably arranged in the first sliding groove; during the rotation of the support along the first direction, the second sliding member can extend out of the mounting space.

[0065] The first sliding member and the second sliding member can form a telescopic nested structure. When the electronic device is switched from the unfolded state to the first folded state, the second sliding member can be extended from the mounting space, and the first sliding member can be extended from the second sliding member, thereby further increasing the sliding stroke of the swing arm to meet the rotation requirement of the swing arm. At the same time, when the first sliding member and the second sliding member are both in the extended state, the distance between the swing arm and the shaft seat is further increased, thereby increasing the overall width of the shaft assembly.

[0066] In a possible implementation, during the switching of the shaft assembly from the unfolded state to the second folded state, the support is rotated in the second direction, the connecting part slides from the first end of the first sliding groove to the second end of the first sliding groove, and during the switching of the shaft assembly from the unfolded state to the first folded state, the support is rotated in the first direction, the connecting part slides from the first end of the first sliding groove to the second end of the first sliding groove, the first sliding member slides along the second sliding groove to the side away from the shaft seat, and the second sliding member can extend out of the mounting space.

[0067] The above design realizes the rotation of the swing arm group in the first direction and the second direction, thereby enabling the electronic device to simultaneously realize inner folding and outer folding.

[0068] In a second aspect, an embodiment of the present application provides an electronic device, including a shaft assembly, a first shell, a second shell, and a flexible display screen, the shaft assembly being the shaft assembly in any one of the above embodiments; the first shell and the second shell are connected on two sides of the shaft assembly along the width direction; the flexible display screen covers one side of the shaft assembly, the first shell, and the second shell along the thickness direction of the shaft assembly, and is connected with the first shell and the second shell; when the electronic device is in the first folded state, the flexible display screen is accommodated between the first shell and the second shell; when the electronic device is in the second folded state, the flexible display screen is exposed outside the first shell and the second shell.

[0069] The electronic device has the above shaft assembly, thereby reducing the assembly difficulty of the electronic device, improving the assembly precision, and improving the stability and reliability of the electronic device.

[0070] It should be understood that the above general description and the following detailed description are only exemplary and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0071] Figure 1 A schematic view of an electronic device provided by an embodiment of the present application in an unfolded state;

[0072] Figure 2 A schematic view of an electronic device in a first folded state according to an embodiment of the present application;

[0073] Figure 3 A schematic view of an electronic device in a second folded state according to an embodiment of the present application;

[0074] Figure 4 A schematic view of 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;

[0075] Figure 5 A schematic view of a hinge assembly according to an embodiment of the present application;

[0076] Figure 6 An exploded schematic view of a hinge assembly according to an embodiment of the present application;

[0077] Figure 7 A zoomed-in view of portion I according to an embodiment of the present application; Figure 6

[0078] A zoomed-in view of portion II according to an embodiment of the present application; Figure 8

[0079] A zoomed-in view of portion III according to an embodiment of the present application; Figure 9

[0080] A zoomed-in view of portion IV according to an embodiment of the present application; Figure 10

[0081] A zoomed-in view of portion V according to an embodiment of the present application; Figure 11 Figure 10 A zoomed-in view of portion VI according to an embodiment of the present application;

[0082] Figure 12 A schematic view of a hinge assembly according to yet another embodiment of the present application;

[0083] Figure 13 A schematic view of a first main support plate connected to a first support according to an embodiment of the present application;

[0084] Figure 14 A schematic view of a flexible display screen in a first folded state of an electronic device according to an embodiment of the present application, showing a bending region of the flexible display screen and a first support, a first main support plate, a second support, and a second main support plate;

[0085] Figure 15 A partial schematic view of a hinge assembly according to yet another embodiment of the present application;

[0086] Figure 16 A schematic view of a flexible display screen in a first folded state and various support plates according to an embodiment of the present application;

[0087] Figure 17 ​Fig. 1 is a schematic view of a hinge assembly in the related art;

[0088] Figure 18 Fig. 2 is a schematic view of a first decorative plate, a second decorative plate and a third decorative plate in the related art;

[0089] Figure 19 Fig. 3 is a schematic view of a hinge assembly in another embodiment of the present application;

[0090] Figure 20 Fig. 4 is a schematic view of an elastic connecting piece in an embodiment of the present application;

[0091] Figure 21 Fig. 5 is a partial schematic view of an elastic connecting piece in another embodiment of the present application;

[0092] Figure 22 Fig. 6 is a partial schematic view of a hinge assembly in another embodiment of the present application.

[0093] The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate embodiments consistent with the present application and, together with the description, further serve to explain the principles of the present application. DETAILED DESCRIPTION

[0094] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0095] In the description of the present application, unless explicitly defined and limited, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" means two or more; the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, can be detachable connection, or integral connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0096] In the description of the present application, it should be understood that the "upper", "lower" and the like described in the embodiments of the present application are described from the angle shown in the drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it should also be understood that when referring to an element connected to another element "on" or "below", it can be directly connected to another element "on" or "below", or indirectly connected to another element "on" or "below" through an intermediate element.

[0097] With the development of science and technology, foldable electronic devices have been widely used by users. Foldable electronic devices have two usage states: unfolded and folded. However, when switching between unfolded and folded states, current foldable electronic devices can only fold in one direction, which means they can only fold inward or outward, thus affecting the user experience.

[0098] To address the aforementioned issues, this application provides an electronic device. The electronic device can be any device with a foldable function, such as a mobile phone, tablet computer, laptop computer, or wearable device. This application does not impose any special restrictions on the specific form of the aforementioned electronic device.

[0099] The following explanation uses a foldable mobile phone as an example.

[0100] like Figure 1 As shown, Figure 1 This is a schematic diagram of an electronic device 100 in its unfolded state according to an embodiment of this application. The electronic device 100 includes a hinge assembly 10, a flexible display screen 20, a first housing 30, and a second housing 40. The first housing 30 and the second housing 40 are respectively connected to both sides of the hinge assembly 10. The first housing 30 can rotate relative to the second housing 40 via the hinge assembly 10 to realize the unfolding and folding of the electronic device 100. The flexible display screen 20 is located on one side of the hinge assembly 10 and is connected to both the first housing 30 and the second housing 40. The flexible display screen 20 can be unfolded or folded as the first housing 30 and the second housing 40 rotate. For example, when the electronic device 100 is in the unfolded state, the flexible display screen 20 is also in the unfolded state. Specifically, when the electronic device 100 is in the unfolded state, the first housing 30 and the second housing 40 are approximately located in the same plane. At this time, the flexible display screen 20 can be roughly unfolded into a plane, thereby giving the flexible display screen 20 a larger area to provide users with a clearer picture, and also facilitating users to perform actions such as clicking, swiping, or writing, thereby improving the user experience.

[0101] The flexible display screen 20 described above can be, but is not limited to, an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode display screen, a micro organic light-emitting diode display screen, a micro organic light-emitting diode display screen, and the like.

[0102] The first housing 30 and the second housing 40 described above can be a middle frame structure of the electronic device 100. For example, the first housing 30 can be a main middle frame of the electronic device 100, and the second housing 40 can be a sub-middle frame of the electronic device 100. The first housing 30 and the second housing 40 are used to mount components (not shown in the figure) of the electronic device 100, such as a battery, a circuit board, a camera, an earphone, a receiver, a key, a battery, and the like.

[0103] The first housing 30 and the second housing 40 can be folded along a first direction (i.e., the A direction shown in the figure), which can 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 the state of the electronic device 100 after being folded inward). The first direction is opposite to the second direction. Figure 1

[0104] As shown in FIG. 1B, the electronic device 100 is in the first folded state. Figure 2 Figure 2 As shown in FIG. 1B, the electronic device 100 is in the first folded state.

[0105] The first housing 30 and the second housing 40 can also be folded along a second direction (i.e., the B direction shown in the figure), which can 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 the state of the electronic device 100 after being folded outward). Figure 1

[0106] As shown in FIG. 1C, the electronic device 100 is in the second folded state. Figure 3 ​​​As shown, Figure 3 This is a schematic diagram of the electronic device 100 in a second folded state according to an embodiment of this application. In the second folded state, the flexible display screen 20 is exposed on the outside of the first housing 30 and the second housing 40, that is, the flexible display screen 20 can be regarded as the outer surface of the electronic device 100, so as to facilitate viewing or operation by the user. The electronic device 100 in the second folded state is smaller in size, making it easier to store and carry.

[0107] like Figure 4 As shown, Figure 4 This is a schematic diagram illustrating the switching of the electronic device 100 from an unfolded state to a first folded state and a second folded state in one embodiment of this application. The width of the flexible display screen 20 is L1, and the width of the structural member formed by the connection of the first housing 30, the pivot 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 screen 20 is equal to the width L2 of the aforementioned structural member, and at this time, the flexible display screen 20 is not subjected to the squeezing or stretching action of the structural member.

[0108] When the flexible display screen 20 is folded along the first direction (direction A) to switch to the first folded state, the flexible display screen 20 is housed inside the structural component, that is, within the space enclosed by the first housing 30, the second housing 40, and the hinge assembly 10. If the width L1 of the flexible display screen 20 in the first folded state is equal to the width L2 of the structural component, the first housing 30, the second housing 40, and the hinge assembly 10 cannot provide enough space to accommodate the flexible display screen 20, causing the flexible display screen 20 to be compressed, which poses a risk of breakage.

[0109] Please continue to refer to this. Figure 4 When the flexible display screen 20 is folded along the second direction (direction B) to switch to the second folded state, the flexible display screen 20 will be exposed on the outside of the structural components, that is, the first housing 30, the second housing 40, and the hinge assembly 10 are housed inside the flexible display screen 20. If the width L1 of the flexible display screen 20 in the second folded state is equal to the width L2 of the structural components, the flexible display screen 20 cannot provide enough space to accommodate the first housing 30, the second housing 40, and the hinge assembly 10, causing the flexible display screen 20 to be stretched, which also makes the flexible display screen 20 susceptible to breakage.

[0110] In summary, to enable the electronic device 100 to simultaneously fold outwards and inwards, and to ensure that the flexible display screen 20 is not subjected to compression or stretching, the dimensions of the structural component formed by the first housing 30, the hinge assembly 10, and the second housing 40 must match the dimensions of the flexible display screen 20. Specifically, to prevent the flexible display screen 20 from being compressed by the structural component, in the first folded state, the width L2 of the structural component should be greater than the width L1 of the flexible display screen 20. To prevent the flexible display screen 20 from being stretched by the structural component, in the second folded state, the width L2 of the structural component should be less than the width L1 of the flexible display screen 20.

[0111] Based on this, the present application provides a hinge assembly. The hinge assembly in the present application can realize the outward folding and inward folding of the electronic device. At the same time, the hinge assembly can adjust its own width during the folding and unfolding of the electronic device, so that the width of the structural component composed of the hinge assembly, the first housing and the second housing is adjustable, so as to match the size of the flexible display screen, thereby ensuring that the flexible display screen is not squeezed or stretched.

[0112] The structure of the rotating shaft assembly in the embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0113] like Figure 5 As shown, Figure 5 This is a schematic diagram of a rotating shaft assembly 10 according to an embodiment of this application. The rotating shaft assembly 10 includes a bearing seat 11 and supports located on both sides of the bearing seat 11 along the width direction Y of the rotating shaft assembly 10, namely a first support 121 and a second support 122. The bearing seat 11 is provided with swing arm assemblies along the width direction Y of the rotating shaft assembly 10, namely a first swing arm assembly 13 and a second swing arm assembly 14. The first support 121 is connected to the first housing 30 (e.g., ...). Figure 1 As shown), the first bracket 121 is also rotatably connected to the bearing 11 via the first swing arm assembly 13. The second bracket 122 is connected to the second housing 40 (as shown). Figure 1 As shown, the second bracket 122 is also rotatably connected to the bearing 11 via the second swing arm assembly 14. The first housing 30 can drive the first bracket 121 to rotate relative to the bearing 11, and the second housing 40 can drive the second bracket 122 to rotate relative to the bearing 11, thereby realizing the unfolding and folding of the electronic device 100.

[0114] The first swing arm assembly 13 includes a first main swing arm 131 and a first auxiliary swing arm 132, and the second swing arm assembly 14 includes a second main swing arm 141 and a second auxiliary swing arm 142. At least four sliding components 15 are provided on the bearing seat 11, 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 all be connected to the bearing seat 11 through their respective sliding components 15.

[0115] It should be noted that the length direction, width direction and thickness direction of the rotating shaft assembly referred to in the present application are based on the perspective when the rotating shaft assembly is in the unfolded state. Specifically, please refer to Figure 5 When the rotating shaft assembly 10 is in the unfolded state, the extension direction of the shaft seat 11 is the length direction X of the rotating shaft assembly 10, the arrangement direction of the first support 121 and the second support 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.

[0116] 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.

[0117] As shown in Figure 6 and Figure 7 , as Figure 6 is an exploded schematic view of the rotating shaft assembly 10 in an embodiment of the present application, Figure 7 is Figure 6 an enlarged view of part I. The sliding assembly 15 can include a first sliding member 151, which is movably connected with the first main swing arm 131. The first sliding member 151 is provided with a first sliding groove 1511, and the first main swing arm 131 has a connecting portion 1311 which can extend into the first sliding groove 1511. 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 connecting portion 1311 can slide in the first sliding 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 connecting portion 1311 can slide in the first sliding groove 1511 in a direction towards the shaft seat 11.

[0118] The first sliding groove 1511 can be an arc-shaped groove, i.e. the bottom surface of the first sliding groove 1511 is an arc surface. The connecting portion 1311 can also have a certain curvature, i.e. the connecting portion 1311 can have a structure similar to a "C" letter. The curvature of the connecting portion 1311 corresponds to the curvature of the first sliding groove 1511, so that the connecting portion 1311 can slide along an arc-shaped trajectory in the first sliding groove 1511, thereby improving the stability and smoothness of the rotation of the first main swing arm 131.

[0119] The first sliding groove 1511 includes a first end 1511a and a second end 1511b along the width direction Y of the rotating shaft assembly 10, and the first end 1511a and the second end 1511b can be provided with a first limiting structure (for example, a limiting column, etc., not shown in the figure), which can abut against the connecting part 1311 to limit the sliding range of the connecting part 1311 in the first sliding groove 1511, so as to avoid the connecting part 1311 from being pulled out of the first sliding groove 1511, that is, to avoid the first main swing arm 131 from being disconnected with the first sliding part 151.

[0120] The shaft seat 11 is provided with a mounting space 111, and the first sliding part 151 is mounted in the mounting space 111 and can be extended out of the mounting space 111, that is, the first sliding part 151 is slidably connected with the shaft seat 11. Specifically, the mounting space 111 has a first guide groove 1111, and the first sliding part 151 has a first guide protrusion 1512 which can extend into the first guide groove 1111 and move along the first guide groove 1111. The first guide groove 1111 can be an arc-shaped groove, and the first guide protrusion 1512 can be an arc-shaped protrusion, so that the first sliding part 151 can slide along an arc-shaped track in the mounting space 111.

[0121] Along the length direction X of the rotating shaft assembly 10, the side walls on both sides of the mounting space 111 are provided with the first guide groove 1111, and correspondingly, the two ends of the first sliding part 151 are provided with the first guide protrusion 1512, and the two first guide protrusions 1512 are matched with the corresponding first guide grooves 1111 to improve the stability and reliability of the sliding of the first sliding part 151.

[0122] 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 can be provided with a second limiting structure (for example, a limiting column, etc., not shown in the figure), which can abut against the first guide protrusion 1512 of the first sliding part 151 to limit the sliding range of the first guide protrusion 1512 in the first guide groove 1111, so as to avoid the first guide protrusion 1512 from being pulled out of the first guide groove 1111, that is, to avoid the first sliding part 151 from being pulled out of the mounting space 111.

[0123] As can be seen from the above, the first main swing arm 131 is connected with the first sliding part 151 on the shaft seat 11 in a sliding manner, so as to be rotatable relative to the shaft seat 11. The movement process of the first main swing arm 131 will be described below in a specific case.

[0124] Please continue to refer to Figure 6 and Figure 7When the electronic device 100 is in the unfolded state, the first slider 151 can be accommodated in the mounting space 111, and the connecting portion 1311 of the first main swing arm 131 can be located on the side close to the first end 1511a of the first sliding groove 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 in the second direction (B direction), and for the connecting portion 1311, the connecting portion 1311 can slide from the first end 1511a of the first sliding groove 1511 to the direction close to the second end 1511b, that is, the connecting portion 1311 moves to the side close to the shaft seat 11. When the electronic device 100 is in the second folded state, the connecting portion 1311 can be located on the side close to the second end 1511b of the first sliding groove 1511.

[0125] 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 in the first direction (A direction), and for the connecting portion 1311, the connecting portion 1311 needs to move from the first end 1511a of the first sliding groove 1511 to the direction away from the second end 1511b. Due to the limitation of the volume of the electronic device 100, the overall size of the shaft assembly 10 is small, so the size of the first slider 151 in the width direction Y of the shaft assembly 10 (that is, the arc length of the first slider 151) is small. In this case, if the first slider 151 is fixed on the shaft seat 11 and cannot move, when the first main swing arm 131 rotates in the A direction, due to the limitation of the arc length of the first slider 151, the connecting portion 1311 will be separated from the first sliding groove 1511, causing the first main swing arm 131 to be unable to rotate again. That is, the first sliding groove 1511 is difficult to provide the connecting portion 1311 of the first main swing arm 131 with a sliding stroke in the direction away from the second end 1511b, thereby causing the electronic device 100 to be unable to switch from the unfolded state to the first folded state.

[0126] In the embodiment of the present application, the first sliding member 151 can slide in the mounting space 111, that is, the first sliding member 151 can slide relative 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 sliding member 151 can slide to the third end 1111a of the first guide slot 1111 and can extend outward from the inside of the mounting space 111, so that the distance between the connecting portion 1311 and the shaft seat 11 in the width direction Y of the rotating shaft assembly 10 includes the sliding distance of the connecting portion 1311 relative to the first sliding member 151 and the distance of the first sliding member 151 extending outward from the mounting space 111 of the shaft seat 11, thereby being able to increase the distance between the connecting portion 1311 and the shaft seat 11 in the width direction Y of the rotating shaft assembly 10 without increasing the sliding distance of the connecting portion 1311 relative to the first sliding member 151 to increase the distance between the connecting portion 1311 and the shaft seat 11 in the width direction Y of the rotating shaft assembly 10, ensuring that the connecting portion 1311 and the first sliding groove 1511 are always in contact, avoiding the disconnection of the connecting portion 1311 and the first sliding groove 1511 causing the first main swing arm 131 to be unable to continue to rotate, so that the electronic device 100 can be switched from the unfolded state to the first folded state.

[0127] 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 have the same structure as the sliding assembly 15 connected with the first main swing arm 131 described above, 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 the same as that of the first main swing arm 131, which will not be repeated here.

[0128] By providing the sliding assembly 15 capable of sliding relative to the shaft seat 11 on the shaft seat 11, it is beneficial to provide sufficient sliding stroke for each swing arm, so that each swing arm can rotate inward and outward, that is, by providing the sliding assembly 15, the rotation angle of each swing arm is increased, thereby realizing the inward folding and outward folding of the electronic device 100.

[0129] In another aspect, the sliding assembly 15 arranged between the swing arm and the shaft seat 11 can adjust the distance between the swing arm and the shaft seat 11. Specifically, during the switching of the electronic device 100 from the unfolded state to the first folded state, the sliding assembly 15 can extend away from the shaft seat 11, thereby increasing the distance between the swing arm and the shaft seat 11, i.e., increasing the overall width of the shaft assembly 10, so as to adapt the shaft assembly 10 to the flexible display 20 in the first folded state and reduce the possibility of the shaft assembly 10 pressing the flexible display 20 in the first folded state. During the switching of the electronic device 100 from the unfolded state to the second folded state, the sliding assembly 15 can retract towards the shaft seat 11, thereby reducing the distance between the swing arm and the shaft seat 11, so as to adapt the shaft assembly 10 to the flexible display 20 in the second folded state and reduce the possibility of the shaft assembly 10 stretching the flexible display 20 in the second folded state.

[0130] With reference to Figure 6 , the first main swing arm 131 has a main body portion 1312 connected to the connecting portion 1311 at one end and connected to the first support 121 at the other end. The first sliding member 151 is provided with a first notch 1513 in communication with the first sliding groove 1511. During the rotation of the first main swing arm 131, the first notch 1513 can avoid the main body portion 1312 of the first main swing arm 131, thereby reducing the possibility of interference between the first main swing arm 131 and the first sliding member 151.

[0131] The first sliding member 151 connected to the first auxiliary swing arm 132, the first sliding member 151 connected to the second main swing arm 141, and the first sliding member 151 connected to the second main swing arm 141 can all be provided with the above-mentioned first notch 1513 for avoiding interference, so as to realize smooth rotation of each swing arm, which will not be described here again.

[0132] The shaft seat 11 is provided with a second notch 112 in communication with the mounting space 111. During the rotation of the first main swing arm 131, the second notch 112 can avoid the main body portion 1312 of the first main swing arm 131, thereby reducing the possibility of interference between the first main swing arm 131 and the shaft seat 11.

[0133] The shaft seat 11 is provided with the above-mentioned second notch 112 for avoiding interference at positions 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 will not be described here again.

[0134] As shown in Figure 8 and Figure 9 , the Figure 8 is a partial exploded view of the shaft assembly 10 in an embodiment of the present application. Figure 9This is a partial cross-sectional view of the pivot assembly 10 in one embodiment of this application. The sliding assembly 15 may further include a second slider 152, which is slidably disposed within the mounting space 111. The second slider 152 includes a second guide protrusion 1522, which can extend into and move along the first guide groove 1111 of the mounting space 111. Specifically, the second guide protrusion 1522 may be an arc-shaped protrusion, thereby allowing the second slider 152 to slide along an arc-shaped trajectory within the mounting space 111.

[0135] The second slider 152 has a second groove 1521, and the first slider 151 is housed in the second groove 1521 and can slide in the second groove 1521. The second groove 1521 includes a second guide groove 1523, and the first guide protrusion 1512 of the first slider 151 can extend into the second guide groove 1523 so that the first slider 151 can slide along an arc-shaped trajectory in the second slider 152.

[0136] During the transition of the pivot assembly 10 from the unfolded state to the second folded state, the bracket rotates in the second direction (i.e., the swing arm assembly rotates in the second direction), combined with Figure 7 As shown, the connecting part 1311 of the swing arm assembly slides from the first end 1511a of the first slide groove 1511 toward the second end 1511b of the first slide groove 1511; during the process of the rotating shaft assembly 10 switching from the unfolded state to the first folded state, the bracket rotates along the first direction (that is, the swing arm assembly rotates along the second direction), the connecting part 1311 of the swing arm assembly slides from the first end 1511a of the first slide groove 1511 toward the second end 1511b away from the first slide groove 1511, the first sliding member 151 slides along the second slide groove 1521 toward the side away from the bearing seat 11, and the second sliding member 152 can extend out of the installation space 111.

[0137] The first slider 151 and the second slider 152 can form a retractable nested structure. When the electronic device 100 switches from the unfolded state to the first folded state, the second slider 152 can extend from the mounting space 111, and the first slider 151 can extend from the second slider 152, thereby further increasing the sliding stroke of the swing arm to meet the rotation requirements of the swing arm. At the same time, when both the first slider 151 and the second slider 152 are in the extended state, the distance between the swing arm and the bearing 11 is further increased, thereby increasing the overall width of the rotating shaft assembly 10.

[0138] According to the needs of the electronic device 100, the sliding assembly 15 can also include a plurality of sliding members, which are nested together and can be extended and contracted to provide sufficient sliding travel for the swing arms and to allow the distance between the swing arms and the shaft seat 11 to be fully adjusted.

[0139] The above describes the rotation of the swing arms by the sliding assembly to achieve the folding and unfolding functions of the electronic device. The following describes how the size and shape of the rotating shaft assembly are adapted to the flexible display screen to ensure that the flexible display screen is not squeezed or stretched.

[0140] As shown in FIG. 10, Figure 10 FIG. 11 is a schematic view of a rotating shaft assembly 10 according to another embodiment of the present application. The rotating shaft assembly 10 also includes a support plate assembly 16, which includes at least a main support plate on each side of the shaft seat 11 along the width direction Y of the rotating shaft assembly 10. The main support plates on each side of the shaft seat 11 are respectively a first main support plate 161 and a second main support plate 162. The first main support plate 161 and the second main support plate 162 can be flat plate structures. Along the thickness direction Z of the rotating shaft assembly 10, the first main support plate 161 is connected to one side of the first support frame 121, and the second main support plate 162 is connected to one side of the second support frame 122. 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.

[0141] The rotating shaft assembly 10 also includes elastic members on each side of the shaft seat 11 along the width direction Y of the rotating shaft assembly 10. The elastic member between the first main support plate 161 and the shaft seat 11 is a first elastic member 171, and the first main support plate 161 is rotatably connected to the shaft seat 11 through the first elastic member 171. The elastic member between the second main support plate 162 and the shaft seat 11 is a second elastic member 172, and the second main support plate 162 is rotatably connected to the shaft seat 11 through the second elastic member 172. The first elastic member 171 and the second elastic member 172 have the ability to elastically deform, and their materials can be high-elasticity metals such as spring steel, spring copper, spring aluminum, or high-elasticity plastic materials, composite materials, etc., which are not listed one by one here.

[0142] When the main support plate rotates relative to the shaft seat 11 along the first direction described above to switch the rotating shaft assembly 10 from the unfolded state to the first folded state, the elastic member is elongated to move the main support plate away from the shaft seat 11. When the main support plate rotates relative to the shaft seat 11 along the second direction described above to switch the rotating shaft assembly 10 from the unfolded state to the second folded state, the elastic member is contracted to move the main support plate closer to the shaft seat 11.

[0143] It has been described above that, in order to prevent the flexible display 20 from being squeezed by the structure formed by the first housing 30, the hinge assembly 10 and the second housing 40, the length of the structure should be greater than the length 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 can be stretched along with the rotation of the first main support plate 161, and the second elastic member 172 can be stretched along with the rotation of the second main support plate 162. As the length of the first elastic member 171 and the second elastic member 172 increases, the width of the hinge assembly 10 in the first folded state is increased, and thus the width of the structure formed by the first housing 30, the hinge assembly 10 and the second housing 40 is matched with the width of the flexible display 20. At this time, the flexible display 20 will not be squeezed, thereby reducing the risk of the flexible display 20 being broken during folding, so as to improve the reliability of the electronic device 100.

[0144] 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 bending area formed after the flexible display 20 is folded corresponds to the position of the hinge assembly 10. The shape of the bending area in the first folded state can be "U" shaped or water drop shaped. After the first elastic member 171 and the second elastic member 172 are stretched, the width of the hinge assembly 10 in the first folded state is increased, so as to be matched with the arc length of the bending area of the flexible display 20. That is, due to the stretching of the first elastic member 171 and the second elastic member 172, the hinge assembly 10 provides a corresponding accommodation space for the bending area of the flexible display 20, thereby reducing the possibility of the hinge assembly 10 squeezing the bending area of the flexible display 20.

[0145] It has been described above that, in order to prevent the flexible display 20 from being stretched by the structure formed by the first housing 30, the hinge assembly 10 and the second housing 40, the length of the structure should be less 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 can be compressed along with the rotation of the first main support plate 161, and the second elastic member 172 can be compressed along with the rotation of the second main support plate 162. As the length of the first elastic member 171 and the second elastic member 172 decreases, the width of the hinge assembly 10 in the second folded state is decreased, and thus the width of the structure formed by the first housing 30, the hinge assembly 10 and the second housing 40 is matched with the width of the flexible display 20. At this time, the flexible display 20 will not be stretched, thereby reducing the risk of the flexible display 20 being broken during folding, so as to improve the reliability of the electronic device 100.

[0146] Furthermore, during the process of the electronic device 100 switching from the unfolded state to the second folded state, the rotating shaft assembly is housed in the bending area of the flexible display screen 20. The shape of the bending area in the second folded state can be "U" shaped or water droplet shaped. After the first elastic member 171 and the second elastic member 172 are compressed, the width of the rotating shaft assembly 10 in the second folded state is reduced compared to the width of the rotating shaft assembly 10 in the unfolded state, so that the rotating shaft assembly 10 can be housed in the bending area of the flexible display screen 20 without pulling the bending area of the flexible display screen 20.

[0147] Continue to refer to Figure 10 , along the length direction X of the rotating shaft assembly 10, two, three or more first elastic members 171 can be provided between the first main support plate 161 and the shaft seat 11 to improve the connection stability between the first main support plate 161 and the shaft seat 11. Two, three or more second elastic members 172 can be provided between the second main support plate 162 and the shaft seat 11 to improve the connection stability between the second main support plate 162 and the shaft seat 11.

[0148] As Figure 11 shown, Figure 11 is Figure 10 the enlarged view of part II in Figure 10 . The first elastic member 171 can include a first elastic part 1711, a second elastic part 1712 and a third elastic part 1713. As shown in

[0149] , the first elastic part 1711 is fixedly connected to the shaft seat 11 through the second elastic part 1712, and the first elastic part 1711 is fixedly connected to the first main support plate 161 through the third elastic part 1713. Among them, connection methods such as welding, bonding, and snap connection can be adopted between the first elastic part 1711 and the shaft seat 11, and between the third elastic part 1713 and the first main support plate 161. Figure 10 Among them, the first elastic part 1711 has a hollow part 1714. As shown in

[0150] , the hollow part 1714 penetrates the first elastic member 171 along the thickness direction Z of the first elastic member 171. The hollow part 1714 can be rectangular, that is to say, the first elastic part 1711 can have a "mouth" shaped structure. The hollow part 1714 provides a deformation space for the first elastic member 171 to increase the deformation amount of the first elastic member 171 to realize the change of the width of the rotating shaft assembly 10. In some other embodiments, the hollow part 1714 can also be in shapes such as circular, triangular, and diamond shaped.

[0151] The structure of the second elastic element 172 is the same as that of the first elastic element 171, and will not be described again here.

[0152] In other embodiments, the first elastic element 171 and the second elastic element 172 may be elastic bodies such as springs and sheet metal.

[0153] like Figure 12 As shown, Figure 12 This is a schematic diagram of the pivot assembly 10 in another embodiment of this application. The support plate assembly 16 may further include secondary support plates disposed on both sides of the bearing seat 11 along the width direction Y of the pivot assembly 10. The secondary support plate located between the bearing seat 11 and the first main support plate 161 is the first secondary support plate 163, and the secondary support plate located between the bearing seat 11 and the second main support plate 162 is the second secondary support plate 164. The first secondary support plate 163 and the second secondary support plate 164 may be connected to the flexible display screen respectively to provide support for the flexible display screen.

[0154] The first secondary support plate 163 can be rotatably connected to the bearing 11 and the first main support plate 161 via the first elastic element 171. That is, along the width direction Y of the rotating shaft assembly 10, at least two first elastic elements 171 can be provided on the side of the rotating shaft assembly 10 near the first main support plate 161.

[0155] The second auxiliary support plate 164 can be rotatably connected to the bearing 11 and the second main support plate 162 via the second elastic element 172. That is, along the width direction Y of the rotating shaft assembly 10, at least two second elastic elements 172 can be provided on the side of the rotating shaft assembly 10 near the second main support plate 162.

[0156] When the electronic device 100 switches from the unfolded state to the first folded state, the first elastic members 171 on both sides of the first secondary support plate 163 are stretched as the first main support plate 161 and the first secondary support plate 163 rotate, and the second elastic members 172 on both sides of the second secondary support plate 164 are stretched as the second main support plate 162 and the second secondary support plate 164 rotate. Conversely, when the electronic device 100 switches from the unfolded state to the second folded state, the aforementioned first elastic members 171 and second elastic members 172 are compressed. Compared to Figure 10 In the embodiment described above, the number of the first elastic element 171 and the second elastic element 172 in the width direction Y of the pivot assembly 10 is increased. When the number of elastic elements increases, the overall elongation and compression of the elastic elements increase, that is, the change in the width dimension of the pivot assembly 10 increases, which is beneficial to meeting the usage requirements of the flexible display screen 20.

[0157] On the other hand, by setting the first secondary support plate 163 and the second secondary support plate 164, the support effect of the pivot assembly 10 on the flexible display screen 20 is improved, the possibility of the flexible display screen 20 collapsing towards the side closer to the pivot assembly 10 is reduced, which is conducive to extending the service life of the flexible display screen 20 and improving the stability and reliability of the flexible display screen 20 in use.

[0158] As can be seen from the above, with the increase in the number of support plates, the number of elastic elements in the width direction of the pivot assembly 10 also increases accordingly. In some embodiments, the number of the first secondary support plates 163 and the second secondary support plates 164 on both sides of the bearing 11 can also be one, two, three, or more. Specifically, the number of the first secondary support plates 163 and the second secondary support plates 164 can be adjusted according to the usage requirements of the flexible display screen 20. For example, when the arc length of the bending area 21 formed by the flexible display screen 20 in the first folded state is large, by increasing the number of the first secondary support plates 163 and the second secondary support plates 164, a reliable support can be provided for the bending area 21 of the flexible display screen 20, so that the flexible display screen 20 will not collapse towards the pivot assembly 10; at the same time, since the number of the first elastic elements 171 and the second elastic elements 172 also increases accordingly, the dimensional change of the pivot assembly 10 increases, so as to match the arc length of the bending area 21 of the flexible display screen 20 and reduce the possibility of the flexible display screen 20 being squeezed.

[0159] Continue as Figure 12 As shown, along the width direction Y of the rotating shaft assembly 10, flexible members are respectively provided on both sides of the bearing seat 11. Among them, the flexible member located on one side of the first bracket 121 is the first flexible member 165, and the first main support plate 161 can be rotatably connected to the first bracket 121 through the first flexible member 165. The flexible member located on one side of the second bracket 122 is the second flexible member 166, and the second main support plate 162 can be rotatably connected to the second bracket 122 through the second flexible member 166.

[0160] The first flexible component 165 and the second flexible component 166 can have a straight "I" shape. Their materials can be highly flexible plastics, such as thermoplastic elastomers (TPE), thermoplastic polyurethane elastomers (TPU), polyvinyl chloride (PVC), etc., or they can be highly flexible metals, such as copper, aluminum, etc.

[0161] In some other embodiments, the first flexible member 165 and the second flexible member 166 may have other shapes, such as an "I", a cross, or a rice-shaped structure.

[0162] The first flexible member 165 can be welded to the first main support plate 161 and the first bracket 121 respectively, and the second flexible member 166 can be welded to the second main support plate 162 and the second bracket 122 respectively. In some other embodiments, each flexible member can be bonded or snapped together with the corresponding support plate and bracket.

[0163] Along the length direction X of the rotating shaft assembly 10, a plurality of first flexible elements 165 may be provided between the first main support plate 161 and the first bracket 121 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 elements 166 may be provided between the second main support plate 162 and the second bracket 122 to improve the stability and reliability of the connection between the second main support plate 162 and the second bracket 122.

[0164] like Figure 13 As shown, Figure 13 This is a schematic diagram illustrating the connection between the first main support plate 161 and the first bracket 121 in one embodiment of this application, wherein the electronic device 100 is in an unfolded state. The first bracket 121 includes a first body portion 1211 and a second body portion 1212, which are connected. The first body portion 1211 has a stepped structure, and a first flexible member 165 can be accommodated within and connected to the first body portion 1211. The longitudinal section of the second body portion 1212 is trapezoidal. Specifically, the second body portion 1212 gradually decreases in size along the thickness direction Z of the rotating shaft assembly 10 in a direction away from the first body portion 1211, thereby giving the second body portion 1212 an inclined top wall. When the electronic device 100 is in the unfolded state, there is a certain gap between the bottom wall of the first main support plate 161 and the top wall of the second body portion 1212. During the switching between the unfolded state and the folded state of the electronic device 100, the first main support plate 161 can rotate toward the first bracket 121 until the bottom wall of the first main support plate 161 abuts against the top wall of the second body part 1212.

[0165] The structure of the second support 122 is the same as that of the first support 121, and will not be described again here. During the switching between the unfolded state and the folded state of the electronic device 100, the second main support plate 162 can rotate toward the second support 122 until the bottom wall of the second main support plate 162 abuts against the inclined top wall of the second support 122.

[0166] like Figure 14 As shown, Figure 14This is a schematic diagram of the bending area 21 of the flexible display screen 20 in a first folded state of an electronic device 100 according to an embodiment of this application, along with the first support 121, the first main support plate 161, the second support 122, and the second main support plate 162. In the first folded state, the bending area 21 of the flexible display screen 20 can be approximately teardrop-shaped. At this time, the first main support plate 161 abuts against the first support 121, and the second main support plate 162 abuts against the second support 122, causing the first main support plate 161 and the second main support plate 162 to be tilted away from the flexible display screen 20, thereby adapting to the shape of the bending area 21 of the flexible display screen 20. This improves the support effect of the first main support plate 161 and the second main support plate 162 on the flexible display screen 20, and at the same time provides a space for the bending area 21 of the flexible display screen 20, reducing the possibility of the first main support plate 161 and the second main support plate 162 squeezing the flexible display screen 20 when the electronic device 100 is in the first folded state, so as to ensure the normal use of the flexible display screen 20.

[0167] Similarly, when the electronic device 100 is in the second folded state, the shape of the bending area 21 of the flexible display screen 20 can be approximately U-shaped. In the second folded state, the pivot assembly 10 is housed within the bending area 21 of the flexible display screen 20. At this time, the first main support plate 161 can abut against the first bracket 121, and the second main support plate 162 can abut against the second bracket 122, so that the first main support plate 161 and the second main support plate 162 are both tilted away from the flexible display screen 20, thereby adapting to the shape of the bending area 21 of the flexible display screen 20, so as to improve the support effect of the flexible display screen 20 and reduce the possibility of the flexible display screen 20 being stretched.

[0168] like Figure 15 As shown, Figure 15 This is a partial schematic diagram of the pivot assembly 10 in another embodiment of this application. Figure 15 The first main support plate 161, the first secondary support plate 163, and the first bracket 121 are concealed to showcase the structure of the first push rod 191 and the second push rod 192. The pivot assembly 10 may also include a push rod assembly 19, which includes the first push rod 191 and is combined with… Figure 12 As shown, a first push rod 191 is movably connected between the bearing seat 11 and the first bracket 121, and another first push rod 191 is movably connected between the bearing seat 11 and the second bracket 122. That is, the bearing seat 11 is connected to both sides with a first push rod 191.

[0169] The following is combined Figure 12 and Figure 15 The structure of the first push rod 191 is described using the first push rod 191 between the bearing seat 11 and the first bracket 121 as an example.

[0170] The first push rod 191 is rotatably connected to the first support 121 at one end, and rotatably connected to the shaft seat 11 at the other end and movable along the length direction X of the rotating shaft assembly 10 relative to the shaft seat 11.

[0171] In some embodiments, the first push rod 191 is provided with a first spherical part 1911 and a second spherical part 1912 at two ends respectively, the first push rod 191 is hinged to the first support 121 through the first spherical part 1911, and the first push rod 191 is hinged to the shaft seat 11 through the second spherical part 1912, so that the first push rod 191 can rotate smoothly between the first support 121 and the shaft seat 11.

[0172] The shaft seat 11 is provided with a guide rail 114 and a moving part 113, the guide rail 114 extends along the length direction X of the rotating shaft assembly 10, the moving part 113 is connected to the guide rail 114 and movable along the guide rail 114, that is, the moving part 113 is movable along the length direction X of the rotating shaft assembly 10. The first push rod 191 is rotatably connected to the moving part 113, specifically, the second spherical part 1912 of the first push rod 191 is hinged to the moving part 113, so that the first push rod 191 can rotate relative to the moving part 113 and move along the guide rail 114 together with the moving part 113. By providing the guide rail 114, the stability of the moving part 113 moving along the length direction X of the rotating shaft assembly 10 is improved, thereby improving the stability of the first push rod 191 moving and the movement precision of the rotating shaft assembly 10.

[0173] When the electronic device 100 is in the unfolded state, the first push rod 191 can be in the first position, and the second push rod 192 can be in the second position. Figure 15When the electronic device 100 is switched from the unfolded state to the first folded state, the first push rod 191 can rotate with the rotation of the first support 121, and at the same time, the first push rod 191 can also move along the length direction X of the rotating shaft assembly 10 through the movement of the moving piece 113, so as to make the included angle a between the first push rod 191 and the width direction Y of the rotating shaft assembly 10 smaller, that is, the length of the projection of the first push rod 191 on the width direction Y of the rotating shaft assembly 10 is larger, so that the first support 121 can move away from the shaft seat 11, that is, the width of the rotating shaft assembly 10 is increased, so as to match the arc length of the flexible display screen in the first folded state. Conversely, when the electronic device 100 is switched from the unfolded state to the second folded state, the first push rod 191 can also move along the length direction X of the rotating shaft assembly 10 through the movement of the moving piece 113, so as to make the included angle a between the first push rod 191 and the width direction Y of the rotating shaft assembly 10 larger, that is, the length of the projection of the first push rod 191 on the width direction Y of the rotating shaft assembly 10 is smaller, so that the first support 121 can move close to the shaft seat 11, that is, 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.

[0174] When the rotating shaft assembly 10 is in the first folded state, the first push rod 191 has a first included angle a1 with the width direction Y of the rotating shaft assembly 10. When the rotating shaft assembly 10 is in the second folded state, the first push rod 191 has a second included angle a2 with the width direction Y of the rotating shaft assembly 10, and the first included angle a1 is smaller than the second included angle a2, 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.

[0175] The structure and movement principle of the first push rod between the shaft seat and the second support are the same as those between the shaft seat and the first support, which will not be described here.

[0176] Please continue to refer to Figure 12 and Figure 15 The rotating shaft assembly 10 further comprises a second push rod 192, one second push rod 192 is movably connected between the shaft seat 11 and the first auxiliary support plate 163, and the other second push rod 192 is movably connected between the shaft seat 11 and the second auxiliary support plate 164, that is, the two sides of the shaft seat 11 are connected with the second push rod 192.

[0177] The structure of the second push rod 192 will be described below by taking the second push rod 192 between the shaft seat 11 and the first auxiliary support plate 163 as an example.

[0178] The second push rod 192 is rotatably connected to one end of the first auxiliary support plate 163, and the other end of the second push rod 192 is rotatably connected to the shaft seat 11 and can move relative to the shaft seat 11 along the length direction X of the rotating shaft assembly 10.

[0179] In some embodiments, the two ends of the second push rod 192 are respectively provided with a third spherical part 1921 and a fourth spherical part 1922, the second push rod 192 is hinged to the first auxiliary support plate 163 through the third spherical part 1921, and the second push rod 192 is hinged to the shaft seat 11 through the fourth spherical part 1922, so that the second push rod 192 can smoothly rotate between the first auxiliary support plate 163 and the shaft seat 11.

[0180] In some embodiments, the first auxiliary support plate 163 is provided with a mounting seat (not shown in the figure), and the third spherical part 1921 of the second push rod 192 can be hinged to the mounting seat, so as to improve the stability of the connection between the second push rod 192 and the first auxiliary support plate 163.

[0181] The shaft seat 11 is provided with a matching part 115, the matching part 115 is provided with a matching 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 matching groove 1151 and can move along the matching groove 1151, specifically, the fourth spherical part 1922 of the second push rod 192 can be located in the matching groove 1151, and the fourth spherical part 1922 can move along the matching groove 1151, so that the second push rod 192 can rotate relative to the matching part 115 and can move along the matching groove 1151 of the matching part 115.

[0182] The matching part 115 can be fixedly connected with the above-mentioned moving part 113, for example, a part of the matching part 115 can be embedded in the moving part 113, therefore, the matching part 115 can move together with the moving part 113 along the length direction X of the rotating shaft assembly 10, so as to realize the linkage between the first push rod 191 and the second push rod 192, that is, the first push rod 191 is connected with the second push rod 192 through the moving part 113 and the matching part 115, 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, so as to improve the movement accuracy of the entire rotating shaft assembly 10, thereby improving the reliability of the rotating shaft assembly 10.

[0183] When the electronic device 100 is in the unfolded state, the second push rod 192 can be in the second position. Figure 15When the electronic device 100 is switched from the unfolded state to the first folded state, the second push rod 192 can rotate with the rotation of the first sub-support plate 163, and at the same time, the second push rod 192 can move along the length direction X of the rotating shaft assembly 10 through the matching groove 1151, so that the included angle β between the second push rod 192 and the width direction Y of the rotating shaft assembly 10 becomes smaller, that is, the length of the projection of the second push rod 192 on the width direction Y of the rotating shaft assembly 10 becomes larger, so that the first sub-support plate 163 can move away from the shaft seat 11, so that the width of the rotating shaft assembly 10 increases, so as to match the arc length of the flexible display screen 20 in the first folded state. Conversely, when the electronic device 100 is switched from the unfolded state to the second folded state, the second push rod 192 can move along the length direction X of the rotating shaft assembly 10 through the matching groove 1151, so that the included angle β between the second push rod 192 and the width direction Y of the rotating shaft assembly 10 becomes larger, that is, the length of the projection of the second push rod 192 on the width direction Y of the rotating shaft assembly 10 becomes smaller, so that the first sub-support plate 163 can move close to the shaft seat 11, that is, the width of the rotating shaft assembly 10 decreases, so as to match the arc length of the flexible display screen 20 in the second folded state.

[0184] 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, the second push rod 192 has a fourth included angle β2 with the width direction Y of the rotating shaft assembly 10. 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 continuously decreases when the rotating shaft assembly 10 is switched from the first folded state to the second folded state.

[0185] The structure and movement principle of the second push rod between the shaft seat and the second sub-support plate are the same as those between the shaft seat and the first sub-support plate, which will not be repeated here.

[0186] When the electronic device 100 is in the first folded state and the second folded state, the first push rod 191 can support and limit the first bracket 121 and the second bracket 122. 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, it also limits and constrains the first main support plate 161 and the second main support plate 162, determining 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. This facilitates the matching of the shape of the pivot assembly 10 with the shape of the flexible display screen 20, reducing the possibility of the flexible display screen 20 being squeezed or stretched. At the same time, under the action of the first push rod 191, the first main support plate 161 and the second main support plate 162 provide reliable support for the flexible display screen 20, keeping the first main support plate 161 and the second main support plate 162 in their current positions, thereby improving the stability of the flexible display screen 20.

[0187] The second push rod 192 supports and limits the first secondary support plate 163 and the second secondary support plate 164, respectively, determining their positions in the first and second folded states, thus facilitating the matching of the shape of the pivot assembly 10 with that of the flexible display screen 20. Simultaneously, the support of the second push rod 192 maintains the first and second secondary support plates 163 and 164 in their current positions, providing reliable support for the flexible display screen 20 and improving its stability.

[0188] For example, such as Figure 16 As shown, Figure 16FIG. 1 is a schematic view of the flexible display 20 and the support plates in the first folded state according to an embodiment of the present application. The bending area 21 of the flexible display 20 in the first folded state can be in the shape of a water drop. The bending area 21 is accommodated in the first space 10a enclosed by the shaft seat, the main support plates and the auxiliary support plates. At this time, the second push rod 192 can provide a support force in a direction away from the flexible display 20 for the first auxiliary support plate 163 and the second auxiliary support plate 164 respectively, and make the first auxiliary support plate 163 and the second auxiliary support plate 164 stably maintain at a preset position, so as to increase the distance between the first auxiliary support plate 163 and the second auxiliary support plate 164, thereby providing sufficient accommodation space for the bending area 21 of the flexible display 20. The first main support plate 161 and the second main support plate 162 can also stably maintain at a preset state under the action of the first push rod 191 respectively, so that the shape of the accommodation space enclosed by the first main support plate 161, the second main support plate 162, the first auxiliary support plate 163, the second auxiliary support plate 164 and the shaft seat 11 matches the shape of the bending area 21 of the flexible display 20, so as to ensure that the flexible display 20 will not be squeezed. At the same time, since the shape of each support plate matches the shape of the flexible display 20, the reliability of the support of the support plates on the flexible display 20 is improved, the possibility of the flexible display collapsing downward when being pressed is reduced, and the operation experience of the user is improved.

[0189] When the hinge assembly is in the first folded state, the hinge assembly has a first space for accommodating the bending area of the flexible display, the first space can be enclosed by the main support plates and the shaft seat, or the first space can also be enclosed by the main support plates, the auxiliary support plates and the shaft seat. When the hinge assembly is in the second folded state, the hinge assembly has a second space, the second space can be enclosed by the main support plates and the shaft seat, or the second space can also be enclosed by the main support plates, the auxiliary support plates and the shaft seat, and the bending area of the flexible display is used to wrap the side of the main support plates and the shaft seat away from the second space.

[0190] As mentioned above, in the process of switching the hinge assembly from the unfolded state to the first folded state, the elastic member is elongated to make the main support plates away from the shaft seat, so as to increase the width of the hinge assembly in the first folded state, so as to match the width of the flexible display in the first folded state; in the process of switching the hinge assembly from the unfolded state to the second folded state, the elastic member is contracted to make the main support plates close to the shaft seat, so that the width of the hinge assembly in the second folded state is reduced compared with the width of the hinge assembly in the unfolded state, so that the hinge assembly can be accommodated in the bending area of the flexible display and will not pull the bending area of the flexible display. Therefore, the arc length of the first space is greater than the arc length of the second space.

[0191] The side, away from the flexible display, of the rotating shaft assembly can be further provided with a decorative plate assembly. The decorative plate assembly can shield the structure inside the rotating shaft assembly, thereby playing a protection role, reducing the possibility of interference and collision between the structure outside the rotating shaft assembly and the structure inside the rotating shaft assembly, thereby improving the overall reliability of the rotating shaft assembly, and also improving the delicacy of the appearance of the rotating shaft assembly, to meet the use needs of the electronic device.

[0192] As shown in Figure 17 , Figure 17 is a partial schematic view of a rotating shaft assembly 10' in the related art. In the related art, the decorative plate assembly 18' can include a first decorative plate 181', a second decorative plate 182', and a third decorative plate 183'. The first decorative plate 181' is connected with the first support 121', the second decorative plate 182' is connected with the second support 122', and the third decorative plate 183' is connected with the shaft seat 11'. Along the width direction Y of the rotating shaft assembly 10', a gap D is provided 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'.

[0193] As shown in Figure 18 , Figure 18 is a schematic view of the first decorative plate 181', the second decorative plate 182', and the third decorative plate 183' in the related art. The first decorative plate 181' can move towards the third decorative plate 183' along with the rotation of the first support 121', and the second decorative plate 182' can move towards the side of the third decorative plate 183' along with the rotation of the second support 122'. Since the gap D is provided 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', a corresponding space is provided for the rotation of the first decorative plate 181' and the second decorative plate 182', so that the first decorative plate 181' and the third decorative plate 183', and the second decorative plate 182' and the third decorative plate 183' will not interfere with each other during rotation.

[0194] In the related art, the first decorative plate 181', the second decorative plate 182', and the third decorative plate 183' are independently provided from each other, i.e., the decorative plate is designed in a split type, which increases the assembly difficulty of the rotating shaft assembly 10'. Specifically, during the assembly of the rotating shaft assembly 10', the first decorative plate 181', the second decorative plate 182', and the third decorative plate 183' need to be assembled to the corresponding positions respectively. Since the three are independent from each other, the three need to be positioned with each other to ensure the assembly accuracy of the rotating shaft assembly 10', which makes the assembly steps of the rotating shaft assembly 10' more complicated and difficult, and also increases the production cost of the rotating shaft assembly 10'.

[0195] On the other hand, in the unfolded state, there is a gap D between the first decorative panel 181', the second decorative panel 182', and the third decorative panel 183'. As mentioned above, the decorative panels serve to shield and protect the internal structure of the hinge assembly 10'. Therefore, when there is such a gap between the decorative panels, the shielding and protection effect of the decorative panels is reduced, thereby affecting the reliability of the hinge assembly 10'. In addition, the existence of the gap also affects the refinement of the appearance of the hinge assembly 10', making it difficult to meet the usage requirements of electronic devices.

[0196] To address the issue that gaps between decorative panels affect the aesthetic finish of the pivot assembly, this application provides an integrated decorative panel assembly, the structure of which is described in detail below.

[0197] like Figure 19 As shown, Figure 19 This is a schematic diagram of the pivot assembly 10 in another embodiment of this application. The decorative panel assembly includes a first decorative panel 181, a second decorative panel 182, and a third decorative panel 183 arranged along the width direction Y of the pivot assembly 10. Along the thickness direction Z of the pivot assembly 10, the first decorative panel 181 is connected to the side of the first bracket 121 opposite to the first main support plate 161, the second decorative panel 182 is connected to the side of the first bracket 121 opposite to the second main support plate 162, and the third decorative panel 183 is connected to one side of the bearing seat 11. The first decorative panel 181 and the third decorative panel 183, and the second decorative panel 182 and the third decorative panel 183 are connected by elastic connectors 184. Because the elastic connector 184 has a certain degree of flexibility and the ability to deform elastically, a rotatable connection relationship is realized between the first decorative panel 181 and the third decorative panel 183, and between the second decorative panel 182 and the third decorative panel 183. As mentioned above, the width of the pivot assembly 10 can be adjusted to match the arc length of the bending area 21 of the flexible display screen 20. Understandably, the elastic connector 184 can be stretched or shortened according to the change in the width of the pivot assembly 10 to ensure that the electronic device 100 can switch between the unfolded state, the first folded state, and the second folded state.

[0198] The elastic connector 184 connects the first decorative panel 181, the second decorative panel 182, and the third decorative panel 183 into a whole. In other words, the three decorative panels adopt an integrated design. This design eliminates the need for mutual positioning of the first decorative panel 181, the second decorative panel 182, and the third decorative panel 183 during the assembly process, thereby reducing the assembly difficulty of the pivot assembly 10, simplifying the assembly steps of the pivot assembly 10, and reducing the production cost of the pivot assembly 10. At the same time, it improves the relative positional accuracy between the first decorative panel 181, the second decorative panel 182, and the third decorative panel 183, thereby improving the fitting accuracy of the pivot assembly 10.

[0199] The material of the elastic connecting member 184 can be highly elastic metal, for example, spring steel, Spring copper, Spring aluminum, or it can also be a highly elastic plastic material, composite material, etc., which will not be listed one by one here.

[0200] Such as Figure 20 shown Figure 20 is a schematic diagram of the elastic connecting member 184 in an embodiment of the present application. Among them, the structure within the dashed box is an elastic unit 1841 in the elastic connecting member 184. The elastic connecting member 184 includes a plurality of interconnected elastic units 1841, and each elastic unit 1841 can be stretched or compressed.

[0201] The elastic connecting member 184 includes at least one elastic unit 1841, and the elastic unit 1841 has a hollow area 1841d. Among them, the elastic unit 1841 can 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 the hollow area 1841d, and the formation of the hollow area 1841d can be rectangular, that is, it can be understood that the elastic unit 1841 has a "mouth" - shaped structure. The hollow 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 some other embodiments, the hollow area 1841d can also be in shapes such as circular, triangular, diamond - shaped, etc.

[0202] The elastic units 1841 can be continuously arranged along the length direction of the elastic connecting member 184. Specifically, in the length direction of the elastic connecting member 184, the number of elastic units 1841 can also be two, three, four or more. Between two adjacent elastic units 1841, the second elastic segment 1841b of one elastic unit 1841 is connected to the second elastic segment 1841b of another elastic unit 1841, thereby improving the stability and reliability of the overall structure of the elastic connecting member 184.

[0203] The elastic units 1841 can be arranged at intervals along the width direction of the elastic connecting piece 184, and specifically, the number of the elastic units 1841 along the width direction of the elastic connecting piece 184 can also be two, three, four or more. Between two adjacent elastic units 1841, the first elastic segment 1841a of one elastic unit 1841 can be connected with the first elastic segment 1841a of the other elastic unit 1841 through the third elastic segment 1841c. The interval between the adjacent elastic units 1841 provides 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 thus the elastic connecting piece 184 can be elongated or compressed along with the change of the width of the rotating shaft assembly, so as to realize the switching of the electronic device 100 between the unfolded state, the first folded state and the second folded state.

[0204] As shown in FIG. 18, FIG. 19 and FIG. 20, the elastic connecting piece 184 is arranged between the first decorative plate 181 and the second decorative plate 182, and the second decorative plate 182 and the third decorative plate 183. Figure 21 As shown in FIG. 18, FIG. 19 and FIG. 20, the elastic connecting piece 184 is arranged between the first decorative plate 181 and the second decorative plate 182, and the second decorative plate 182 and the third decorative plate 183. Figure 21 As shown in FIG. 18, FIG. 19 and FIG. 20, the elastic connecting piece 184 is arranged between the first decorative plate 181 and the second decorative plate 182, and the second decorative plate 182 and the third decorative plate 183.

[0205] As mentioned above, the first decorative plate 181, the second decorative plate 182 and the third decorative plate 183 are connected by the elastic connecting piece 184 to realize the integrated design. Therefore, the elastic connecting piece 184 also plays a role of shielding and protecting the internal structure of the rotating shaft assembly 10, and the hollow region 1841d of the elastic connecting piece 184 penetrates the elastic connecting piece 184 along the thickness direction thereof (as shown in FIG. 18, FIG. 19 and FIG. 20). Figure 19As shown in the figure, this creates a gap connecting the inside and outside of the pivot assembly 10. In other words, although the hollowed-out area 1841d provides space for the elastic deformation of the elastic connector 184, it reduces the protective effect of the elastic connector 184 on the internal structure of the pivot assembly 10. The internal structure of the pivot assembly 10 may extend into the interior of the pivot assembly 10 through the hollowed-out area 1841d and interfere with and collide with the internal structure, thereby affecting the normal use of the pivot assembly 10. At the same time, the existence of the gap affects the overall refinement of the pivot assembly 10, which is not conducive to the normal use of the pivot assembly 10.

[0206] By dividing the elastic connector 184 into two layers, a first elastic layer 1842 and a second elastic layer 1843, the two elastic layers can respectively shield the hollowed-out areas 1841d of the other, eliminating gaps on the elastic connector 184 that connect the interior and exterior of the pivot assembly 10. This improves the protective effect of the elastic connector 184 on the internal structure of the pivot assembly 10 and enhances the overall refinement of the pivot assembly 10. Furthermore, this design ensures that the hollowed-out areas 1841d of the two elastic layers still provide space for the elastic deformation of the corresponding elastic units 1841, guaranteeing the overall elastic deformation of the elastic connector 184.

[0207] Continue as Figure 21 As shown, the first elastic layer 1842 and the second elastic layer 1843 can be bonded together by an adhesive layer 185. The material of the adhesive layer 185 can be a structural adhesive, such as epoxy resin, or it can be a double-sided adhesive tape. Using the adhesive layer 185 to connect the first elastic layer 1842 and the second elastic layer 1843 helps improve the stability and reliability of the connection between them.

[0208] like Figure 22 As shown, Figure 22 This is a partial schematic diagram of the pivot assembly 10 in another embodiment of this application. The first decorative panel 181 includes a first plate 1811 and a second plate 1812 along its thickness direction Z; the second decorative panel 182 includes a third plate 1821 and a fourth plate 1822 along its thickness direction Z; and the third decorative panel 183 includes a fifth plate 1831 and a sixth plate 1832 along its 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.

[0209] The first plate body 1811, the second plate body 1812, the third plate body 1821, the fourth plate body 1822, the fifth plate body 1831 and the sixth plate body 1832 can be connected by the adhesive layer 185 in the thickness direction Z of the first decorative plate 181.

[0210] In the assembly process of the rotating shaft assembly 10, the first plate body 1811, the third plate body 1821 and the fifth plate body 1831 can be connected into an integral structure by the first elastic layer 1842, the second plate body 1812, the fourth plate body 1822 and the sixth plate body 1832 can be connected into an integral structure by the second elastic layer 1843, and then the two integral structures can be connected together by the adhesive layer 185, so that the assembly process of the rotating shaft assembly 10 is simplified, and the assembly difficulty of the rotating shaft assembly 10 is reduced.

[0211] On the other hand, each decorative plate has a multi-layer structure including the adhesive layer 185. For example, the adhesive layer 185 is a structural adhesive. After curing, the structural adhesive can provide a certain strength for the decorative plate, thereby improving the stability of the decorative plate structure, prolonging the service life of the decorative plate, and improving the overall stability and reliability of the rotating shaft assembly 10.

[0212] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A rotating shaft assembly, characterized in that, include: A bearing seat, wherein brackets are rotatably connected to both sides of the bearing seat along the width direction of the rotating shaft assembly; The decorative panel assembly includes a first decorative panel, a second decorative panel, and a third decorative panel; the third decorative panel is connected to the bearing along the thickness direction of the pivot assembly; the first decorative panel and the second decorative panel are respectively located on both sides of the third decorative panel along the width direction of the pivot assembly, and are connected to the corresponding brackets along the thickness direction of the pivot assembly. The first decorative panel and the third decorative panel, as well as the second decorative panel and the third decorative panel, are rotatably connected by elastic connectors.

2. The rotating shaft assembly according to claim 1, characterized in that, The elastic connector includes at least one elastic unit, which has a hollowed-out area.

3. The rotating shaft assembly according to claim 2, characterized in that, The elastic connector includes a first elastic layer and a second elastic layer along its own thickness direction, and the first elastic layer and the second elastic layer are connected. The first elastic layer and the second elastic layer each include at least one elastic unit, and the hollowed-out areas of the first elastic layer and the second elastic layer are offset from each other.

4. The rotating shaft assembly according to claim 3, characterized in that, An adhesive layer is provided between the first elastic layer and the second elastic layer, and the first elastic layer and the second elastic layer are connected by the adhesive layer.

5. The rotating shaft assembly according to claim 4, characterized in that, Along the thickness direction of the pivot assembly, the first decorative panel includes a first plate and a second plate that are connected to each other; the second decorative panel includes a third plate and a fourth plate that are connected to each other; the third decorative panel includes a fifth plate and a sixth plate that are connected to each other. Along the width direction of the rotating shaft assembly, the first plate, the third plate, and the fifth plate are connected by the first elastic layer; the second plate, the fourth plate, and the sixth plate are connected by the second elastic layer.

6. The rotating shaft assembly according to claim 5, characterized in that, The first plate and the second plate, the third plate and the fourth plate, and the fifth plate and the sixth plate are all connected by the adhesive layer.

7. The shaft assembly according to any one of claims 2 to 6, characterized in that, The elastic unit includes two first elastic segments extending along its length direction and two second elastic segments extending along its width direction, the first elastic segments and the second elastic segments being connected to enclose the hollow area.

8. The shaft assembly according to any one of claims 2 to 6, characterized in that, The elastic connector includes a plurality of the elastic units; The elastic units are continuously arranged along the length of the rotating shaft assembly; Along the width direction of the rotating shaft assembly, the elastic units are spaced apart, and adjacent elastic units are connected by a third elastic segment.

9. The shaft assembly according to any one of claims 1 to 6, characterized in that, The pivot assembly includes a support plate assembly for supporting the flexible display screen of the electronic device. Along the thickness direction of the pivot assembly, the support plate assembly and the decorative plate assembly are connected to both sides of the bearing seat. The support plate assembly includes at least two main support plates disposed on both sides of the bearing seat along the width direction of the rotating shaft assembly. The rotating shaft assembly further includes an elastic element, which is located between the main support plate and the shaft seat along the width direction of the rotating shaft assembly. The main support plate is rotatably connected to the shaft seat through the elastic element. When the main support plate rotates relative to the shaft seat in a first direction, causing the rotating shaft assembly to switch from an unfolded state to a first folded state, the elastic element extends 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, causing the rotating shaft assembly to switch from an unfolded state to a second folded state, the elastic element contracts to move the main support plate closer to the shaft seat. The first direction is opposite to the second direction.

10. The rotating shaft assembly according to claim 9, characterized in that, When the pivot assembly is in the first folded state, there is a first space between the main support plate and the bearing seat for accommodating the bending area of ​​the flexible display screen; When the pivot assembly is in the second folded state, there is a second space between the main support plate and the bearing seat, and the bending area of ​​the flexible display screen is used to cover the side of the main support plate and the bearing seat that is away from the second space. The arc length of the first space is greater than the arc length of the second space.

11. The rotating shaft assembly according to claim 9, characterized in that, The elastic element includes a hollow portion; The hollowed-out portion penetrates the elastic element along its thickness direction.

12. The rotating shaft assembly according to claim 11, characterized in that, The elastic element includes a first elastic portion, a second elastic portion, and a third elastic portion; The hollowed-out portion is disposed on the first elastic portion, the first elastic portion is connected to the bearing seat through the second elastic portion, and the first elastic portion is connected to the main support plate through the third elastic portion.

13. The rotating shaft assembly according to claim 9, characterized in that, Along the length of the rotating shaft assembly, a plurality of elastic elements are connected between the main support plate and the shaft seat.

14. The rotating shaft assembly according to claim 9, characterized in that, The support plate assembly also includes a secondary support plate disposed between the main support plate and the bearing seat along the width direction of the rotating shaft assembly; Along the width direction of the rotating shaft assembly, elastic elements are provided on both sides of the secondary support plate. One end of the secondary support plate is rotatably connected to the main support plate on the same side through the elastic element; the other end of the secondary support plate is rotatably connected to the shaft seat through the elastic element.

15. The rotating shaft assembly according to claim 10, characterized in that, The rotating shaft assembly further includes brackets disposed on both sides of the shaft seat along the width direction of the rotating shaft assembly, and push rod assemblies disposed 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 a bracket on the same side, and the other end of which is rotatably connected to the bearing seat. The first push rod is also capable of sliding relative to the bearing seat along the length direction of the rotating shaft assembly.

16. The rotating shaft assembly according to claim 15, characterized in that, The bearing seat is provided with a guide rail extending along the length direction of the rotating shaft assembly and a movable component connected to the guide rail. One end of the first push rod is rotatably connected to the movable member; when the rotating shaft assembly switches between the first folded state, the unfolded state, and the second folded state, the movable member can move along the guide rail to change the angle between the first push rod and the width direction of the rotating shaft assembly.

17. The shaft assembly according to claim 16, characterized in that, When the pivot assembly is in the first folded state, there is a first included angle between the first push rod and the width direction of the pivot assembly; When the pivot assembly is in the second folded state, there is a second included angle between the first push rod and the width direction of the pivot assembly; The first included angle is smaller than the second included angle.

18. The shaft assembly according to claim 16, characterized in that, The first push rod has a first spherical portion and a second spherical portion at its two ends, respectively; The first spherical portion is rotatably connected to the bracket; The second spherical part is rotatably connected to the movable part.

19. The rotating shaft assembly according to claim 16, characterized in that, The support plate assembly also includes a secondary support plate disposed between the main support plate and the bearing seat along the width direction of the rotating 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 bearing seat and can slide relative to the bearing seat along the length direction of the rotating shaft assembly.

20. The rotating shaft assembly according to claim 19, characterized in that, The first push rod is used to support the bracket on the same side, and the bracket restricts the main support plate connected to the bracket to the position of the first folded state or the position of the second folded state. The second push rod is used to support the sub-support plate on the same side, restricting the sub-support plate to the position of the first folded state or the position of the second folded state; In the first folded state, the main support plate, the secondary support plate, and the shaft seat form the first space; in the second folded state, the main support plate, the secondary support plate, and the shaft seat form the second space.

21. The rotating shaft assembly according to claim 19, characterized in that, The bearing seat is provided with a mating component, and the mating component is fixedly connected to the moving component. The mating component has a mating groove along the length direction of the rotating shaft assembly. One end of the second push rod is rotatably connected in the mating groove. When the rotating shaft assembly switches between the first folded state, the unfolded state and the second folded 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.

22. The rotating shaft assembly according to claim 21, characterized in that, When the pivot assembly is in the first folded state, the second push rod has a third included angle with the width direction of the pivot assembly; When the pivot assembly is in the second folded state, there is a fourth included angle between the second push rod and the width direction of the pivot assembly; The third included angle is smaller than the fourth included angle.

23. The rotating shaft assembly according to claim 21, characterized in that, The second push rod has a third spherical portion and a fourth spherical portion at each end; The third spherical part is rotatably connected to the secondary support plate; The fourth spherical part is rotatably disposed in the mating groove, and the fourth spherical part is movable along the mating groove.

24. The rotating shaft assembly according to claim 9, characterized in that, The rotating shaft assembly further includes brackets disposed on both sides of the shaft seat along the width direction of the rotating shaft assembly, the brackets being rotatably connected to the shaft seat; The bracket is rotatably connected to the main support plate on the same side via at least one flexible member.

25. The rotating shaft assembly according to claim 24, characterized in that, The support includes a first body part and a second body part; The flexible component is housed within the first body portion; the second body portion is connected to the first body portion, and the thickness of the second body portion gradually decreases in the direction away from the first body portion; When the pivot assembly switches between the first folded state and the second folded state, the main support plate can rotate toward the side closer to the bracket until the main support plate abuts against the second body part.

26. The rotating shaft assembly according to claim 9, characterized in that, The rotating shaft assembly further includes brackets disposed on both sides of the bearing seat along the width direction of the rotating shaft assembly, the brackets being rotatably connected to the bearing seat, and the brackets being connected to a swing arm assembly; The bearing seat is provided with a sliding component, and the swing arm assembly is rotatably connected to the sliding component. When the swing arm assembly rotates relative to the sliding component, the sliding component can slide relative to the bearing seat. The sliding assembly includes at least a first sliding member, the first sliding member having a first sliding groove, and the swing arm assembly includes a connecting part, the connecting part being slidably disposed in the first sliding groove; The bearing has an installation space, the first sliding member is located within the installation space, and the first sliding member can extend out of the installation space during the rotation of the bracket in the first direction.

27. The rotating shaft assembly according to claim 26, characterized in that, The sliding assembly further includes a second sliding member, which is slidably disposed within the installation space; The second sliding member has 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.

28. The shaft assembly according to claim 27, characterized in that, During the process of the rotating shaft assembly switching from the unfolded state to the second folded state, the bracket rotates along the second direction, and the connecting part slides from the first end of the first slide groove toward the second end of the first slide groove. During the process of switching the pivot assembly from the unfolded state to the first folded state, the bracket rotates along the first direction, the connecting part slides from the first end of the first slide groove to the second end away from 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.

29. An electronic device, characterized in that, include: A pivot assembly, wherein the pivot assembly is any one of claims 1 to 28; A first housing and a second housing, which are respectively connected to both sides of the rotating shaft assembly along the width direction; A flexible display screen covers one side of the pivot assembly, the first housing, and the second housing along the thickness direction of the pivot assembly, and is connected to the first housing and the second housing; When the electronic device is in a first folded state, the flexible display screen is housed between the first housing and the second housing; when the electronic device is in a second folded state, the flexible display screen is exposed on the outside of the first housing and the second housing.

Images