Rotating shaft mechanism and electronic equipment

Abstract

A rotating shaft mechanism (1) and an electronic device, the rotating shaft mechanism (1) comprising a first rotating module (112), a second rotating module (113) and a module support (111), the first rotating module (112) and the second rotating module (113) being respectively arranged on both sides of the module support (111). The first rotating module (112) comprises a first swing arm (1121), a first supporting arm (1122), a first shell support (1123), a first door plate (1124) and a first connecting rod (1125), the first door plate (1124) is used for supporting the flexible display screen, the first swing arm (1121) and the first supporting arm (1122) are arranged on the face, away from the flexible display screen, of the first door plate (1124), and the first swing arm (1121) and the first supporting arm (1122) are distributed in the length direction of the rotating shaft mechanism (1) and rotationally connected with the module support (111); the first shell support (1123) is arranged on the faces, away from the first door plate (1124), of the first swing arm (1121) and the first supporting arm (1122), the first swing arm (1121) is rotationally connected with the first shell support (1123), the first supporting arm (1122) is slidably connected with the first shell support (1123), and the first door plate (1124) is rotationally connected with the first shell support (1123); one end of the first connecting rod (1125) is rotationally connected with the first swing arm (1121), and the other end of the first connecting rod (1125) is rotationally connected with the first door plate (1124).

Description

Rotating shaft mechanism and electronic equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on February 27, 2023, with application number 202310209056.7 and application name “A Rotating Shaft Mechanism and Electronic Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the technical field of electronic equipment, and in particular to a rotating shaft mechanism and electronic equipment. Background Art

[0004] As flexible display technology matures, the display mode of electronic devices has undergone tremendous changes. Foldable flexible screen mobile phones, foldable flexible screen tablets, and wearable electronic devices with foldable flexible screens are an important evolutionary direction of future smart electronic devices.

[0005] The hinge mechanism, a key component for foldable electronic devices to achieve both closure and unfolding, must provide sufficient space to accommodate the curved portion of the flexible display when the device is closed, and reliably support the flexible display when the device is unfolded. However, while existing folding solutions meet these two requirements, the hinge mechanism suffers from limitations in motion control accuracy, impacting the overall reliability of the device.

[0006] Summary of the Invention

[0007] The present application provides a hinge mechanism and an electronic device to improve the movement accuracy of the hinge mechanism, thereby improving the overall reliability of the electronic device.

[0008] In a first aspect, the present application provides a pivot mechanism, which may include a first rotating module, a second rotating module, and a module bracket, wherein the first rotating module and the second rotating module may be respectively arranged on both sides of the module bracket. The first rotating module may include a first swing arm, a first support arm, a first shell bracket, a first door panel, and a first connecting rod. The first door panel may be used to support a flexible display screen. At least a portion of the first swing arm and the second support arm may be arranged on a side of the first door panel facing away from the flexible display screen. The first swing arm and the first support arm may be distributed along the length direction of the pivot mechanism, and the first swing arm and the first support arm may be respectively rotatably connected to the module bracket. The first support arm and the first swing arm have different rotation axes on the module bracket and are parallel to each other. At least a portion of the first shell bracket may be arranged on a side of the first swing arm and the first support arm facing away from the first door panel. The first swing arm is rotatably connected to the first shell bracket, the first support arm is slidably connected to the first shell bracket, and the first door panel is rotatably connected to the first shell bracket. One end of the first connecting rod may be rotatably connected to the first swing arm, and the other end may be rotatably connected to the first door panel. The second rotating module may include a second swing arm, a second support arm, a second shell bracket, a second door panel and a second connecting rod. The second door panel can be used to support the flexible display screen. The second swing arm and the second support arm can be distributed along the length direction of the rotating shaft mechanism, and the second swing arm and the second support arm are respectively rotatably connected to the module bracket. The rotation axes of the second support arm and the second swing arm on the module bracket are different and parallel to each other; at least a part of the second shell bracket can be arranged on the side of the second swing arm and the second support arm away from the second door panel, the first swing arm is rotatably connected to the second shell bracket, the second support arm is slidably connected to the second shell bracket, and the second door panel is rotatably connected to the second shell bracket; one end of the second connecting rod can be rotatably connected to the second swing arm, and the other end can be rotatably connected to the second door panel. In this way, when the first and second housing brackets rotate relative to each other, the first housing bracket drives the first support arm and the first swing arm to rotate about the module bracket, and the first connecting rod drives the first door panel to rotate relative to the first housing bracket, so that the end of the first door panel closest to the module bracket moves away from the module bracket. Correspondingly, the second housing bracket drives the second support arm and the second swing arm to rotate about the module bracket, and the second connecting rod drives the second door panel to rotate relative to the second housing bracket, so that the end of the second door panel closest to the module bracket moves away from the module bracket. In this way, when the first door panel rotates to the first position and the second door panel rotates to the second position, they form an angle and, together with the module bracket, enclose a screen space for accommodating the flexible display. Specifically, the first position refers to the position in which the first and second door panels rest when the electronic device is closed. In this position, the first and second door panels can form an acute angle. It should be noted that the angle here can be the angle formed directly between the first and second door panels or the angle formed by the extension of the first and second door panels.

[0009] In the above scheme, based on the rotational connection relationship between the first swing arm and the first housing bracket, between the first housing bracket and the first door panel, between the first door panel and the first connecting rod, and between the first connecting rod and the first swing arm, the first swing arm, the first housing bracket, the first door panel, and the first connecting rod can roughly form a four-bar linkage mechanism. In this case, the first door panel can rotate under the joint constraints of the first connecting rod and the first housing bracket. Similarly, the second swing arm, the second housing bracket, the second door panel, and the second connecting rod can also roughly form a four-bar linkage mechanism. The second door panel can rotate under the joint constraints of the second connecting rod and the second housing bracket. This design can effectively improve the movement accuracy of the hinge mechanism during the expansion and closing process, and improve the stress state of the first and second door panels, so that the first and second door panels can move stably and accurately to the specified position, thereby improving the overall structural reliability of the electronic device using the hinge mechanism.

[0010] In some possible implementations, the first rotating module may further include a third door panel, which may be located on the side of the first door panel close to the module bracket to support the flexible display together with the first door panel; the third door panel may be rotatably connected to the first door panel, and the third door panel may be slidably connected to the module bracket, and the third door panel may rotate relative to the module bracket. Similarly, the second rotating module may further include a fourth door panel, which may be located on the side of the second door panel close to the module bracket to support the flexible display together with the second door panel; the fourth door panel may be rotatably connected to the second door panel, and the fourth door panel may be slidably connected to the module bracket, and the fourth door panel may rotate relative to the module bracket. By designing the hinge mechanism as a four-door panel structure, in the closed state, the screen space formed by the hinge mechanism can better fit the curved shape of the flexible display, thereby helping to improve the reliability of the flexible display.

[0011] In some possible embodiments, a first mounting slot may be provided on a surface of the first swing arm facing the first door panel, and a second mounting slot may be provided on a surface of the first door panel facing the first swing arm. One end of the first connecting rod is rotatably disposed in the first mounting slot, and the other end of the first connecting rod is rotatably disposed in the second mounting slot, thereby achieving a rotational connection between the first connecting rod, the first swing arm, and the first door panel. Similarly, a third mounting slot may be provided on a surface of the second swing arm facing the second door panel, and a fourth mounting slot may be provided on a surface of the second door panel facing the second swing arm. One end of the second connecting rod is rotatably disposed in the third mounting slot, and the other end of the second connecting rod is rotatably disposed in the fourth mounting slot, thereby achieving a rotational connection between the second connecting rod, the second swing arm, and the second door panel.

[0012] In some possible embodiments, a first protrusion may be provided on a side of the first door panel facing away from the flexible display screen. Along the length direction of the rotating shaft mechanism, the first protrusion may be located on one side of the first support arm. A first rotation slot may be provided on the side of the first protrusion facing the first support arm. A first sliding shaft may be provided on the side of the first support arm facing the first protrusion. The first sliding shaft may be slidably provided in the first rotation slot. In this way, the first door panel bracket and the first support arm can be relatively rotated by the cooperation of the first sliding shaft and the first rotation slot. Similarly, a second protrusion may be provided on a side of the second door panel facing away from the flexible display screen. Along the length direction of the rotating shaft mechanism, the second protrusion may be located on one side of the second support arm. A second rotation slot may be provided on the side of the second protrusion facing the second support arm. A second sliding shaft may be provided on the side of the first support arm facing the second protrusion. The second sliding shaft may be slidably provided in the second rotation slot. In this way, the second door panel bracket and the second support arm can be relatively rotated by the cooperation of the second sliding shaft and the second rotation slot.

[0013] In some possible embodiments, a first arcuate slot and a second arcuate slot may be provided on either side of the module support, respectively. The first swing arm may have a first arcuate rotating block disposed in the first arcuate slot and capable of rotating about the arcuate surface of the first arcuate slot, thereby enabling the first swing arm to rotate about the module support. The second swing arm may have a second arcuate rotating block disposed in the second arcuate slot and capable of rotating about the arcuate surface of the second arcuate slot, thereby enabling the second swing arm to rotate about the module support.

[0014] In some possible embodiments, the first housing bracket may be provided with a first sliding groove, in which the first support arm is slidably disposed, thereby achieving a sliding connection between the first housing bracket and the first support arm. Similarly, the second housing bracket may be provided with a second sliding groove, in which the second support arm is slidably disposed, thereby achieving a sliding connection between the second housing bracket and the second support arm.

[0015] In addition, the groove wall of the first chute may be provided with a first slideway, and the side of the first support arm may be provided with a first slider, which can be slidably set in the first slideway to limit the first support arm in the first chute, and the first slideway is used to provide a guide for the sliding of the first support arm in the first chute, thereby improving the movement stability of the first support arm. Similarly, the groove wall of the second chute may be provided with a second slideway, and the side of the second support arm may be provided with a second slider, which can be slidably set in the second slideway to limit the second support arm in the second chute, and the second slideway is used to provide a guide for the sliding of the second support arm in the second chute, thereby improving the movement stability of the second support arm.

[0016] In some possible embodiments, the first housing bracket may be provided with a third curved rotating block, the first door panel may be provided with a third curved slot, and the third curved rotating block may be rotatably mounted in the third curved slot, thereby rotatably connecting the first housing bracket to the first door panel. The second housing bracket may be provided with a fourth curved rotating block, the second door panel may be provided with a fourth curved slot, and the fourth curved rotating block may be rotatably mounted in the fourth curved slot, thereby rotatably connecting the second housing bracket to the second door panel.

[0017] In some possible implementations, a fifth curved rotating block may be provided on the side of the third door panel facing away from the flexible display screen, and a fifth curved slot may be provided on the side of the first door panel facing away from the flexible display screen. The fifth curved rotating block may be rotatably disposed in the fifth curved slot, thereby rotationally connecting the first door panel to the third door panel. A sixth curved rotating block may be provided on the side of the fourth door panel facing away from the flexible display screen, and a sixth curved slot may be provided on the side of the second door panel facing away from the flexible display screen. The sixth curved rotating block may be disposed in the sixth curved slot, thereby rotationally connecting the second door panel to the fourth door panel.

[0018] In some other possible embodiments, the first door panel and the third door panel may be connected by a first flexible member, in which case the first door panel and the third door panel can be rotated relative to each other by deformation of the first flexible member. Similarly, the second door panel and the fourth door panel may be connected by a second flexible member, in which case the second flexible member can be deformed to achieve relative rotation.

[0019] Optionally, the first flexible component can be arranged on the side of the first door panel and the third door panel facing away from the flexible display screen, and the first flexible component can be bonded to the first door panel and the third door panel respectively; the second flexible component can be arranged on the side of the second door panel and the fourth door panel facing away from the flexible display screen, and the second flexible component can be bonded to the second door panel and the fourth door panel respectively.

[0020] Illustratively, in the above solution, the first flexible component and the second flexible component may be made of materials such as carbon fiber and Kevlar.

[0021] Optionally, the first flexible member may be connected between the first and third door panels. In this case, the first and third door panels may be integrally formed, and the deformable first flexible member may be formed by thinning the connection between the two panels. Similarly, the second flexible member may be connected between the second and fourth door panels. In this case, the second and fourth door panels may be integrally formed, and the second flexible member may be formed by thinning the connection between the second and fourth door panels.

[0022] In some possible embodiments, a first track groove and a second track groove may be provided on either side of the end of the module bracket. A first extension wall may be provided on the side of the third door panel facing away from the flexible display screen. The first extension wall may be provided with a first fixed shaft arranged along the length of the pivot mechanism. The first fixed shaft can be slidably disposed within the first track groove, thereby rotationally connecting the third door panel to the module bracket. A second extension wall may be provided on the side of the fourth door panel facing away from the flexible display screen. The second extension wall may be provided with a second fixed shaft arranged along the length of the pivot mechanism. The second fixed shaft can be slidably disposed within the second track groove, thereby rotationally connecting the fourth door panel to the module bracket.

[0023] In some possible embodiments, the first door panel may include a first door panel body and a first door panel bracket. The first door panel body may be fixed to a side of the first door panel bracket facing the flexible display screen to support the flexible display screen. The second door panel may include a second door panel body and a second door panel bracket. The second door panel body may be fixed to a side of the second door panel bracket facing the flexible display screen to support the flexible display screen. By designing the first and second door panels as separate structures with the door panel bracket and door panel body, the processing difficulty and production cost of the first and second door panels can be reduced.

[0024] In an optional solution, the first door panel body and the first door panel bracket can be fixedly connected by welding, riveting, etc., and the second door panel body and the second door panel bracket can also be fixedly connected by welding, riveting, etc.

[0025] In another optional solution, the first door panel body and the first door panel bracket can be an integrated structure, and the second door panel body and the second door panel bracket can also be an integrated structure. This is conducive to simplifying the structure of the first door panel and the second door panel, thereby simplifying the overall structure of the hinge mechanism and reducing its assembly difficulty.

[0026] In some possible implementations, the rotating shaft mechanism may further include a base, and the module bracket may be fixed to the base, thereby supporting the module bracket using the base.

[0027] In an optional solution, the base may be supported on a side of the module bracket facing away from the first door panel and the second door panel.

[0028] In another optional solution, the base can be positioned between the first and second door panels. When the hinge mechanism is deployed, the side of the base facing away from the module bracket is coplanar with the side of the first door panel facing away from the first swing arm, and the side of the second door panel facing away from the second swing arm. In this case, the base, together with the first and second door panels, can support the flexible display, thereby improving the reliability of the flexible display.

[0029] In some possible embodiments, the rotating shaft mechanism may further include a synchronization assembly, which may include a first driving gear disposed at the end of the first support arm and a second driving gear disposed at the end of the second support arm, the two driving gears being meshed with each other. In this way, when one support arm rotates about the base, the other support arm can be driven to rotate synchronously at the same angle in the opposite or opposite directions.

[0030] In addition, the synchronization component can also include an even number of driven gears, which can be arranged between two driving gears so that the two driving gears can achieve synchronous rotation through the even number of driven gears. This is conducive to improving the stability of the movement of the synchronization component and thereby improving the reliability of the synchronous rotation of the two support arms.

[0031] In a second aspect, the present application further provides an electronic device, which may include a first housing, a second housing, a flexible display, and a hinge mechanism according to any possible embodiment of the first aspect. The first housing and the second housing may be disposed on either side of the hinge mechanism, the first housing being fixedly connected to a first housing bracket, and the second housing being fixedly connected to a second housing bracket; the flexible display may continuously cover the first door panel, the second door panel, and the hinge mechanism, and the flexible display may be fixedly connected to the first door panel and the second door panel.

[0032] The electronic device provided by the present application, when in the unfolded state, the hinge mechanism can play a role in flattening and supporting the flexible display screen, thereby ensuring the integrity of the electronic device in the unfolded state. When it is in the closed state, the hinge mechanism can form a water drop-shaped screen space, thereby meeting the bending requirements of the flexible display screen and reducing the risk of squeezing or stretching the flexible display screen. When the electronic device switches between the open state and the closed state, the first swing arm, the first shell bracket, the first door panel, and the first connecting rod of the first rotating module can form a four-bar linkage mechanism. The second swing arm, the second shell bracket, the second door panel, and the second connecting rod of the second rotating module can also form a four-bar linkage mechanism. The motion characteristics of the four-bar linkage mechanisms on both sides are utilized to improve the motion accuracy of the electronic device during the unfolding and closing process, thereby improving the reliability of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] FIG1 is a schematic structural diagram of an electronic device provided in an embodiment of the present application;

[0034] FIG2 is a schematic diagram of a partially exploded structure of the electronic device shown in FIG1 ;

[0035] FIG3 is a schematic diagram of a partial structure of a spindle unit provided in an embodiment of the present application;

[0036] FIG4 is a schematic diagram of the exploded structure of the spindle unit shown in FIG3 ;

[0037] FIG5 is a schematic diagram of a partial structure of a rotating shaft mechanism in an expanded state provided in an embodiment of the present application;

[0038] FIG6 is a schematic diagram of a partially exploded structure of a rotating shaft mechanism in an expanded state provided by an embodiment of the present application;

[0039] FIG7 is a schematic structural diagram of a first swing arm provided in an embodiment of the present application;

[0040] FIG8 is a schematic structural diagram of a first housing support provided in an embodiment of the present application;

[0041] FIG9 is a schematic structural diagram of a first support arm provided in an embodiment of the present application;

[0042] FIG10 is a schematic diagram of a partial structure of a spindle unit provided in an embodiment of the present application;

[0043] FIG11 is a schematic structural diagram of a first door panel bracket provided in an embodiment of the present application;

[0044] FIG12 is a schematic structural diagram of a first connecting rod provided in an embodiment of the present application;

[0045] FIG13 is a partial structural cross-sectional view of a rotating shaft mechanism provided in an embodiment of the present application;

[0046] FIG14 is a schematic structural diagram of a first sub-board and a second sub-board provided in an embodiment of the present application;

[0047] FIG15 is a partial structural cross-sectional view of a rotating shaft mechanism in an intermediate state provided by an embodiment of the present application;

[0048] FIG16 is another partial structural cross-sectional view of the rotating shaft mechanism provided in an embodiment of the present application in an intermediate state;

[0049] FIG17 is a schematic diagram of a partial structure of a rotating shaft mechanism provided in an embodiment of the present application in an expanded state;

[0050] FIG18 is a schematic diagram of a partial structure of a rotating shaft mechanism in an intermediate state provided in an embodiment of the present application;

[0051] FIG19 is a schematic diagram of a partial structure of a rotating shaft mechanism in a closed state provided in an embodiment of the present application;

[0052] FIG20 is another structural schematic diagram of the first sub-board and the second sub-board provided in an embodiment of the present application;

[0053] FIG21 is a schematic structural diagram of another first sub-board and a second sub-board provided in an embodiment of the present application;

[0054] FIG22 is a schematic structural diagram of another second sub-board provided in an embodiment of the present application;

[0055] FIG23 is a schematic diagram of a partial structure of another rotating shaft mechanism provided in an embodiment of the present application;

[0056] FIG24 is a cross-sectional view of the rotating shaft mechanism shown in FIG23;

[0057] FIG25 is a schematic diagram of a partial structure of a rotating shaft mechanism provided in an embodiment of the present application;

[0058] FIG26 is a cross-sectional view of the rotating shaft mechanism shown in FIG25 at AA.

[0059] Reference numerals: 1-rotating shaft mechanism; 1a-supporting surface of the rotating shaft mechanism; 11-spindle unit; 111-module bracket; 1111-swing arm bracket; 11111-first arcuate groove; 11112-first track groove; 11113-second arcuate groove; 11114-second track groove; 1112-damping bracket; 1113-pin shaft; 112-first rotating module; 1121-first swing arm; 11211-first arcuate rotating block; 11211a-first sub-rotating block; 11211b-second sub-rotating block; 11212-first mounting groove; 1122-first supporting arm; 11221-first slider; 11222-sliding shaft; 1123-first housing bracket; 11231 - first slot; 11232 - first slide; 112321 - first slideway; 11233 - third curved rotating block; 1124 - first door panel; 11241 - first door panel bracket; 112411 - second mounting slot; 112412 - third curved slot; 112413 - protrusion; 1124131 - rotating slide; 11242 - third door panel; 112421 - first extension wall; 1124211 - first fixed axis; 112422 - fifth curved rotating block; 11243 - first door panel body; 112431 - fifth curved slot; 11244 - first flexible member; 1125 - first connecting rod; 113 - Second rotating module; 1131 - Second swing arm; 11311 - Second arc-shaped rotating block; 11312 - Third mounting slot; 1132 - Second support arm; 1133 - Second housing bracket; 11331 - Second slot; 11332 - Second slide slot; 11333 - Fourth arc-shaped rotating block; 1134 - Second door panel; 11341 - Second door panel bracket; 113411 - Fourth mounting slot; 113412 - Fourth arc-shaped slot; 11342 - Fourth door panel; 113421 - Sixth arc-shaped rotating block; 11343 - Second door panel body; 113431 - Sixth arc-shaped slot; 1135 - Second connecting rod; 114 - Damping assembly; 1141 - Elastic member; 1142 - Conjoined cam; 1114 - Intermediate shaft; 115 - Synchronizing assembly; 1151 - First driving gear; 1152 - second driving gear; 1153 - driven gear; 12 - base; 13 - cover plate; 2 - first housing; 2a - support surface of first housing; 201 - first receiving groove; 3 - second housing; 3a - support surface of second housing; 301 - second receiving groove. DETAILED DESCRIPTION

[0060] In order to make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted. The words expressing position and direction described in the embodiments of the present application are all explained using the accompanying drawings as examples, but changes may be made as needed, and the changes made are all included in the scope of protection of the present application. The drawings in the embodiments of the present application are only used to illustrate the relative position relationship and do not represent the true proportion.

[0061] It should be noted that the following description sets forth specific details to facilitate understanding of the present application. However, the embodiments of the present application can be implemented in a variety of ways other than those described herein, and those skilled in the art can make similar generalizations without violating the connotations of the embodiments of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0062] With reference to Figure 1, Figure 1 is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. The electronic device may be a mobile phone, a personal digital assistant (PDA), a laptop computer, a tablet computer or other device with a foldable function. The electronic device of the embodiment shown in Figure 1 is described using a laptop computer as an example. The electronic device may include a hinge mechanism 1, a flexible display screen (not shown in the figure) and two shells. For ease of description, the two shells may be named a first shell 2 and a second shell 3, respectively. The first shell 2 and the second shell 3 are located on both sides of the hinge mechanism 1 and can rotate around the hinge mechanism 1. When in use, the electronic device can be closed and unfolded according to different usage scenarios. The electronic device provided in an embodiment of the present application may be an inward-folding electronic device. In the embodiment shown in Figure 1, the electronic device is in an intermediate state between a closed state and an unfolded state, wherein the structures of the support surface 1a of the hinge mechanism 1, the support surface 2a of the first shell 2 and the support surface 3a side of the second shell 3 are shown. Here, the support surface 1a of the hinge mechanism 1 refers to the surface of the hinge mechanism 1 used to support the flexible display screen, the support surface 2a of the first shell 2 refers to the surface of the first shell 2 used to support the flexible display screen, and the support surface 3a of the second shell 3 refers to the surface of the second shell 3 used to support the flexible display screen.

[0063] The flexible display can continuously cover the support surface 2a of the first housing 2, the support surface 1a of the hinge mechanism, and the support surface 3a of the second housing 3. The flexible display can be fixedly connected to the support surface 2a of the first housing 2 and the support surface 3a of the second housing 3, and the connection method can be, but is not limited to, adhesive bonding. In this way, when the electronic device is in the unfolded state, the hinge mechanism 1, the first housing 2, and the second housing 3 can support the flexible display. During the relative rotation of the first housing 2 and the second housing 3 from the unfolded state to the closed state, or from the closed state to the unfolded state, the flexible display can bend or flatten along with the first housing 2 and the second housing 3.

[0064] Refer to Figure 2, which is a partially exploded schematic diagram of the electronic device shown in Figure 1. In this embodiment of the present application, the first housing 2 and the second housing 3 may be located on opposite sides of the hinge mechanism 1. The side of the first housing 2 proximate to the hinge mechanism 1 includes a first receiving groove 201, and the side of the second housing 3 proximate to the hinge mechanism 1 includes a second receiving groove 301. One side of the hinge mechanism 1 may be partially accommodated within the first receiving groove 201, while the other side of the hinge mechanism 1 may be partially accommodated within the second receiving groove 301. The hinge mechanism 1 may include one spindle unit 11 or multiple spindle units 11. Figure 2 illustrates a case where the hinge mechanism 1 includes four spindle units 11, which may be spaced apart along the length of the hinge mechanism 1. The length of the hinge mechanism 1 can be understood as the direction extending along the axis about which the first and second housings 2 and 3 rotate about the hinge mechanism 1. The first and second housings 2 and 3 are rotatably connected via one or more spindle units 11, which effectively improves the stability of the electronic device's first and second housings 2 and 3 relative to the hinge mechanism 1.

[0065] In addition, the rotating shaft mechanism 1 may further include a base 12 arranged along the length direction, and the base 12 may be used to support the one or more spindle units 11. It is worth mentioning that in some possible implementation schemes, when there are multiple spindle units 11, the multiple spindle units 11 may each use a base 12 as a supporting component to improve the degree of integration of the rotating shaft mechanism 1. In some other possible implementation schemes, the rotating shaft mechanism 1 may be provided with a base 12 corresponding to each spindle unit 11, so that each spindle unit 11 uses the corresponding base 12 as a supporting component. The embodiment shown in Figure 2 is described by taking the rotating shaft mechanism 1 as an example in which it includes an integral base 12.

[0066] Referring to Figures 3 and 4 , Figure 3 is a schematic diagram of a partial structure of the spindle unit 11 provided in an embodiment of the present application, and Figure 4 is a schematic diagram of the exploded structure of the spindle unit 11 shown in Figure 3 . In this embodiment, the spindle unit 11 may include a module bracket 111 and two rotating modules, the two rotating modules being a first rotating module 112 and a second rotating module 113. The module bracket 111 may be fixedly connected to the base 12, and may serve as a bearing component for the first rotating module 112 and the second rotating module 113. The first rotating module 112 and the second rotating module 113 are respectively arranged on both sides of the module bracket 111.

[0067] In one possible embodiment, the base 12 can be disposed on a side of the hinge mechanism that faces away from its support surface. Furthermore, the hinge mechanism can further include a cover 13, which can be disposed on a side of the base 12 that faces away from the hinge mechanism's support surface. For example, the cover 13 can be secured to the base 12 via, but is not limited to, adhesive bonding. Referring also to FIG2 , when the electronic device is in the unfolded state, the cover 13 is concealed within the first receiving groove 201 of the first housing 2 and the second receiving groove 301 of the second housing 3. At this point, the exterior surfaces of the first housing 2 and the second housing 3 can collectively constitute the exterior surface of the electronic device. When the electronic device switches from the open state to the closed state, as the first and second housings 2 and 3 rotate, the surface of the cover 13 facing away from the base 12 gradually emerges from the first and second receiving grooves 201 and 301 of the first and second housings 3. When the electronic device is in the closed state, the exterior surfaces of the first and second housings 2 and 3, as well as the surface of the cover 13 facing away from the base 12, collectively constitute the exterior surface of the electronic device.

[0068] For ease of description, the following embodiments of this application primarily illustrate the spindle unit 11 using the specific configuration of the first rotating module 112 as an example, while the configuration of the second rotating module 113 can refer to that of the first rotating module 112. It should be noted that the design of the second rotating module 113 can be completely identical to that of the first rotating module 112; alternatively, only the components and connections included in the first rotating module 112 can be referenced, while other parameters can be adaptively adjusted and do not require complete consistency.

[0069] With reference to Figures 5 and 6 , Figure 5 is a schematic diagram of the partial structure of the rotating shaft mechanism provided in the embodiment of the present application in the expanded state, and Figure 6 is a schematic diagram of the partial exploded structure of the rotating shaft mechanism provided in the embodiment of the present application in the expanded state. In the embodiment of the present application, the first rotating module 112 may include a first swing arm 1121, a first support arm 1122, a first shell bracket 1123, and a first door panel 1124, wherein the first door panel 1124 may be used to support the flexible display screen and be fixedly connected to the flexible display screen, the first swing arm 1121 and the first support arm 1122 may be arranged on a side of the first door panel 1124 facing away from the flexible display screen, the first swing arm 1121 and the first support arm 1122 may be distributed along the length direction of the rotating shaft mechanism, and both may be rotatably connected to the module bracket 111 respectively, and the first shell bracket 1123 may be located on a side of the first swing arm 1121 and the first support arm 1122 facing away from the first door panel 1124. The first housing bracket 1123 can be used for fixed connection with the first housing. The first housing bracket 1123 can be rotatably connected to the first swing arm 1121 and slidably connected to the first support arm 1122. During the expansion and folding of the hinge mechanism, the first housing bracket rotates synchronously with the first housing, thereby driving the first swing arm 1121 and the first support arm 1122 to rotate synchronously about the module bracket 111. In addition, the first housing bracket 1123 can also be rotatably connected to the first door panel 1124. Therefore, during the rotation of the first housing bracket 1123, the first door panel 1124 can also rotate along a specific trajectory. This provides flat support for the flexible display when the hinge mechanism is in the expanded state, and provides a certain screen space for the flexible display when the hinge mechanism is in the folded state, thereby ensuring the reliability of the flexible display.

[0070] FIG7 is a schematic structural diagram of a first swing arm provided in an embodiment of the present application. Referring to FIG6 and FIG7 together, in this embodiment, the module support 111 may include a swing arm support 1111, and the first swing arm 1121 may be rotatably connected to the swing arm support 1111, with the rotation axis of the first swing arm 1121 being arranged along the length of the rotating shaft mechanism. In a specific implementation, the end of the first swing arm 1121 for connecting to the swing arm support 1111 may be provided with a first arcuate rotating block 11211. Accordingly, the swing arm support 1111 may be provided with a first arcuate groove 11111. The first arcuate rotating block 11211 of the first swing arm 1121 may be accommodated in the first arcuate groove 11111 and may rotate along the arcuate surface of the first arcuate groove 11111, thereby enabling the first support arm 1122 to rotate about the swing arm support 1111. This method of cooperating between the arcuate groove and the arcuate rotating block to achieve rotation about a virtual, positionally defined axis can be referred to as a virtual axis rotation connection method. That is, the two rotating entities do not directly achieve relative rotation via a physical pin, but rather achieve a rotational connection through the aforementioned mating structure. This connection method helps reduce the volume of the spindle unit and facilitates the miniaturization of the shaft mechanism. The first arc-shaped rotating block 11211 can be, but is not limited to, a circular arc-shaped rotating block, and the first arc-shaped groove 11111 can be, but is not limited to, a circular arc-shaped groove.

[0071] In one specific embodiment, the first arc-shaped rotating block 11211 can include two sub-rotating blocks, namely a first sub-rotating block 11211a and a second sub-rotating block 11211b. The first sub-rotating block 11211a and the second sub-rotating block 11211b can be spaced apart along the length of the rotating shaft mechanism. Accordingly, the first arc-shaped slot 11111 can also include a first sub-arc-shaped slot (not shown) and a second sub-arc-shaped slot. The first sub-arc-shaped slot and the second sub-arc-shaped slot can also be spaced apart along the length of the rotating shaft mechanism. The first sub-rotating block 11211a can be accommodated in the first sub-arc-shaped slot and can rotate along the arc surface of the first sub-arc-shaped slot. The second sub-rotating block 11211b can be accommodated in the second sub-arc-shaped slot and can rotate along the arc surface of the second sub-arc-shaped slot. The rotational coordination between the two sets of sub-rotating blocks and the sub-arc-shaped slots can effectively improve the motion stability of the first support arm 1122 relative to the base 12.

[0072] Of course, in some other embodiments, the first swing arm 1121 and the swing arm bracket 1111 can also be rotatably connected through a pin shaft. In this case, hinge holes can be set on the first swing arm 1121 and the swing arm bracket 1111 respectively, and the pin shaft can be rotatably set in the hinge holes of the two.

[0073] FIG8 is a schematic structural diagram of the first housing bracket 1123 provided in an embodiment of the present application. Referring to FIG6 through FIG8 , the first housing bracket 1123 may be provided with a first slot 11231 on the side facing the first swing arm 1121. The end of the first swing arm 1121 away from the swing arm bracket 1111 may be disposed within the first slot 11231. The slot wall of the first slot 11231 may be provided with a hinge hole a. Accordingly, the end of the first swing arm 1121 away from the swing arm bracket 1111 may be provided with a hinge hole b. The first swing arm 1121 may be rotatably connected to the first housing bracket 1123 by rotating a pin disposed within its hinge hole a and the hinge hole b of the first slot 11231.

[0074] FIG9 is a schematic structural diagram of the first support arm 1122 provided in an embodiment of the present application. Referring to FIG6 and FIG9 , in this embodiment, the module bracket 111 may further include a damping bracket 1112 and a pin 1113. The damping bracket 1112 and the aforementioned swing arm bracket 1111 may be spaced apart along the length direction of the rotating shaft mechanism. The pin 1113 is connected between the damping bracket 1112 and the swing arm bracket 1111, and the pin 1113 is also arranged along the length direction of the rotating shaft mechanism. A hinge hole c is provided at one end of the first support arm 1122 connected to the module bracket 111. The first support arm 1122 may be sleeved on the pin 1113 through the hinge hole c, thereby achieving a rotational connection with the module bracket 111.

[0075] 8 and 9 , the first housing support 1123 may further include a first slide groove 11232. The first slide groove 11232 and the first slot 11231 may be located on the same side of the first housing support 1123. The end of the first support arm 1122 away from the module support 111 is mounted in the first slide groove 11232 and is slidable therein. In addition, in order to prevent the first support arm 1122 from falling off in the first slide groove 11232, the groove wall of the first slide groove 11232 can be provided with a first slide track 112321, and accordingly, the side of the first support arm 1122 can be provided with a first slider 11221, and the first slider 11221 can be slidably set in the first slide track 112321. In this way, on the one hand, the first support arm 1122 can be limited in the first slide groove 11232, and on the other hand, the first slide track 112321 can also be used to provide guidance for the sliding of the first support arm 1122 in the first slide groove 11232, so as to improve the movement stability of the first support arm 1122.

[0076] Additionally, in some possible embodiments, the number of first support arms 1122 can be one or more. For example, FIG6 shows a case where there are three first support arms 1122. The three first support arms 1122 can be arranged along the length of the rotating shaft mechanism. Accordingly, the first housing support 1123 can be provided with first sliding grooves 11232 corresponding one to one with the one or more first support arms 1122, with each first support arm 1122 slidingly assembled within the corresponding first sliding groove 11232. By utilizing the coordination of multiple sets of first support arms 1122 and first sliding grooves 11232, the connection stability between the first support arms 1122 and the first housing support 1123 can be effectively improved, further improving the movement stability of the first housing support 1123.

[0077] FIG10 is a schematic diagram of a partial structure of a spindle unit provided in an embodiment of the present application. Referring to FIG10 and in combination with the above description, it can be seen that the first swing arm 1121, the first housing bracket 1123, and the first support arm 1122 can generally form a crank-connecting rod mechanism. When the rotating shaft mechanism switches from the expanded state to the closed state, the first housing bracket 1123 rotates counterclockwise. Based on the rotational connection between the first swing arm 1121 and the first housing bracket 1123, and the sliding connection between the first support arm 1122 and the first housing bracket 1123, the first housing bracket 1123 can drive the first swing arm 1121 and the first support arm 1122 to rotate synchronously counterclockwise around the module bracket 111. The portion of the first arc block 11211 of the first swing arm 1121 accommodated in the first arc groove 11111 of the swing arm bracket gradually decreases, while the portion of the first support arm 1122 accommodated in the first slide groove 11232 of the first housing bracket 1123 gradually increases. On the contrary, when the hinge mechanism switches from a closed state to an expanded state, the first shell bracket 1123 rotates clockwise, and drives the first swing arm 1121 and the first support arm 1122 to rotate clockwise around the module bracket synchronously. The part of the first arc block 11211 of the first swing arm 1121 accommodated in the first arc groove 11111 of the swing arm bracket gradually increases, and the part of the first support arm 1122 accommodated in the first slide groove 11232 of the first shell bracket 1123 gradually decreases.

[0078] The connection relationship between the first housing bracket 1123, the first swing arm 1121 and the first support arm 1122 is introduced above. Next, the specific arrangement of the first door panel 1124 will be described.

[0079] Referring again to FIG. 6 , as previously described, the first door panel 1124 can be rotatably connected to the first housing bracket 1123 and to the first swing arm 1121. Specifically, the first rotation module 112 can further include a first connecting rod 1125, one end of which can be rotatably connected to the first swing arm 1121, and the other end of which can be rotatably connected to the first door panel 1124. Thus, the first connecting rod 1125 can realize the rotational connection between the first door panel 1124 and the first swing arm 1121.

[0080] As shown in Figures 2 and 6, in a specific implementation, the first door panel 1124 may include a first door panel bracket 11241 and a first door panel body 11243, wherein the first door panel body 11243 is arranged on the side of the first door panel bracket 11241 facing the flexible display screen of the electronic device to support the flexible display screen, and the first door panel bracket 11241 can be used to support the first door panel body 11243, and the rotational connection between the first door panel 1124 and the first shell bracket 1123 and the first swing arm 1121 can also be achieved through the first door panel bracket 11241. By designing the first door panel 1124 as a structure in which the door panel bracket and the door panel body are separated, it helps to reduce the processing difficulty of the first door panel and reduce the production cost. For example, the first door panel body 11243 can be fixedly connected to the first door panel bracket 11241 by, but not limited to, screws, rivets, glue dispensing, or welding to improve the assembly efficiency of the hinge mechanism.

[0081] In some embodiments, the first rotating module may further include a third door panel 11242, which may be located on a side of the first door panel 1124 close to the module support to jointly support the flexible display screen with the first door panel 1124. The third door panel 11242 may be rotatably connected to the first door panel 1124 and slidably connected to the module support 111, and the third door panel 11242 may rotate relative to the module support 111.

[0082] In addition, in the embodiment of the present application, the third door panel 11242 of the multiple spindle units can be a split structure or an integrated structure. Similarly, the first door panel body 11243 of the multiple spindle units can also adopt a split or integrated structural design, and the present application does not impose any restrictions on this. As shown in Figure 4, the first door panel body 11243 and the third door panel 11242 of the multiple spindle units are both integrated structures. This helps to improve the integration of the rotating shaft mechanism and simplify the assembly difficulty of the rotating shaft mechanism.

[0083] FIG11 is a schematic diagram of the structure of a first door panel bracket 11241 according to an embodiment of the present application, and FIG12 is a schematic diagram of the structure of a first connecting rod 1125 according to an embodiment of the present application. Referring to FIG7 , FIG11 , and FIG12 , a first mounting slot 11212 may be provided on the side of the first swing arm 1121 facing the first door panel bracket 11241, and a second mounting slot 112411 may be provided on the side of the first door panel bracket 11241 facing the first swing arm 1121. One end of the first connecting rod 1125 is rotatably mounted in the first mounting slot 11212, and the other end of the first connecting rod 1125 is rotatably mounted in the second mounting slot 112411. In a specific implementation, a hinge hole d may be provided in the wall of the first mounting slot 11212, and a hinge hole e may be provided at one end of the first connecting rod. The first connecting rod 1125 can be rotatably connected to the first swing arm 1121 by rotating a pin disposed in the hinge hole e and the hinge hole d of the first mounting slot 11212. Similarly, the groove wall of the second mounting groove 112411 may be provided with a hinge hole f, and the other end of the first connecting rod 1125 may be provided with a hinge hole g. The first connecting rod 1125 can be rotated to achieve a rotational connection with the first door panel bracket 11241 by rotating the pin shaft provided in its hinge hole g and the hinge hole f of the second mounting groove.

[0084] Referring to Figures 8 and 11, when the first door panel bracket 11241 is rotatably connected to the first shell bracket 1123, the first shell bracket 1123 may be provided with a third arc-shaped rotating block 11233. Accordingly, a third arc-shaped groove 112412 may be provided on a side of the first door panel bracket 11241 facing the first shell bracket 1123. The third arc-shaped rotating block 11233 of the first shell bracket 1123 may be accommodated in the third arc-shaped groove 112412 and may be rotated along the arc-shaped surface of the third arc-shaped groove 112412. In this way, the rotational connection relationship between the first shell bracket 1123 and the first door panel bracket 11241 can be realized.

[0085] In one specific embodiment, there can be two third curved rotating blocks 11233, each of which can be disposed at either end of the first housing support 1123 along the length of the pivot mechanism. Accordingly, the first door panel support 11241 can also be provided with two third curved slots along the length of the pivot mechanism, with the two third curved rotating blocks 11233 rotatably disposed within corresponding third curved slots 112412. The rotational coordination between the third curved rotating blocks 11233 and the third curved slots 112412 effectively improves the stability of the relative motion between the first door panel support 11241 and the first housing support 1123.

[0086] FIG13 is a partial cross-sectional view of the structure of the rotating shaft mechanism provided in an embodiment of the present application. Referring to FIG13 and in combination with the above description, it can be seen that, based on the rotational connection relationships between first swing arm 1121 and first housing bracket 1123, between first housing bracket 1123 and first door panel bracket 11241, between first door panel bracket 11241 and first connecting rod 1125, and between first connecting rod 1125 and first swing arm 1121, first swing arm 1121, first housing bracket 1123, first door panel bracket 11241, and first connecting rod 1125 can generally form a four-bar linkage. When the hinge mechanism switches from the extended state to the closed state, the first housing bracket 1123 drives the first swing arm 1121 to rotate counterclockwise in sync. During the rotation process, the first swing arm 1121 pulls the first door panel bracket 11241 via the first connecting rod 1125. Under the constraints of the first connecting rod 1125 and the first housing bracket 1123, the first door panel bracket 11241 also rotates counterclockwise relative to the module bracket 111. Conversely, when the hinge mechanism switches from the closed state to the extended state, the first housing bracket 1123 drives the first swing arm 1121 to rotate clockwise in sync. During the rotation process, the first swing arm 1121 pushes the first door panel bracket 11241 via the first connecting rod 1125. Under the constraints of the first connecting rod 1125 and the first housing bracket 1123, the first door panel bracket 11241 also rotates clockwise relative to the module bracket 111. Through this four-bar linkage design, the movement accuracy of the hinge mechanism during the expansion and closing process can be effectively improved, the stress state of the first door panel bracket 11241 can be improved, and the reliability of the overall structure of the electronic device using the hinge mechanism can be improved.

[0087] Please refer to FIG11 again, in order to improve the movement stability of the first door panel bracket 11241, in some embodiments, the first door panel bracket 11241 can be provided with a first protrusion 112413 on the side facing away from the flexible display screen. Along the length direction of the rotating shaft mechanism, the first protrusion 112413 can be located on one side of the first support arm 1122, for example, on the side of the first support arm 1122 where the first slider 11221 is not provided (see FIG9 ), and the side surface of the first support arm 1122 can be provided with a first protrusion 112413. A first sliding shaft 11222 is provided. Accordingly, a first rotational groove 1124131 can be provided on a surface of the first protrusion 112413 facing the first support arm 1122. The first sliding shaft 11222 can be accommodated in the first rotational groove 1124131 and can slide along the first rotational groove 1124131. In this way, the first sliding shaft 11222 cooperates with the first rotational groove 1124131 to achieve a rotational connection between the first door panel bracket 11241 and the first support arm 1122. During the expansion and closing of the hinge mechanism, the first door panel bracket 11241 can be driven to rotate by the first housing bracket 1123, the first connecting rod 1125, and the first support arm 1122, thereby helping to further improve the movement reliability and stability of the first door panel bracket 11241.

[0088] FIG14 is a schematic structural diagram of the first door panel 1124 and the third door panel 11242 provided in an embodiment of the present application, and FIG15 is a partial structural cross-section of the intermediate state of the rotating shaft mechanism provided in an embodiment of the present application. Referring to FIG14 and FIG15 together, the rotational connection between the third door panel 11242 and the first door panel 1124 can be achieved by means of a virtual axis. For example, a fifth arc-shaped rotating block 112422 can be provided on the side of the third door panel 11242 facing away from the flexible display screen. Accordingly, a fifth arc-shaped groove 112431 can be provided on the side of the first door panel body 11243 facing away from the flexible display screen. The fifth arc-shaped block 112422 of the third door panel 11242 can be accommodated in the fifth arc-shaped groove 112431 and can rotate along the arc surface of the fifth arc-shaped groove 112431, thereby achieving a rotational connection between the third door panel 11242 and the first door panel body 11243. With this connection method, during the expansion and closing process of the hinge mechanism, the gap between the third door panel 11242 and the first door panel 1124 due to the relative movement is relatively small, thereby improving the support effect for the flexible display screen.

[0089] Of course, in some other embodiments, the third door panel 11242 and the first door panel 1124 can also be connected by a pin shaft. In this case, a pin shaft hole can be set in the third door panel 11242 and the first door panel body 11243 respectively, and the pin shaft can be rotated and set in the pin shaft holes of the two.

[0090] Figure 16 is another partial cross-sectional view of the pivot mechanism in an intermediate state according to an embodiment of the present application. Referring to Figures 14 and 16 , when the third door panel 11242 is pivotally connected to the swing arm bracket 1111, a first extension wall 112421 can be provided on the side of the third door panel 11242 facing away from the flexible display screen. A first fixed axis 1124211 can be provided on this first extension wall 112421. The first fixed axis 1124211 can be arranged along the length of the pivot mechanism. Correspondingly, along the length direction of the rotating shaft mechanism, a first track groove 11112 can be provided on one side of one end of the swing arm bracket 1111 close to the first rotating module 112, and the first fixed shaft 1124211 can be provided in the first track groove 11112 and can slide along the first track groove 11112, so that the third door panel 11242 can be rotated and connected with the swing arm bracket 1111 through the cooperation of the first fixed shaft 1124211 and the first track groove 11112, that is, the third door panel 11242 can be rotated and connected with the module bracket 111.

[0091] As previously mentioned, the first rotating module 112 and the second rotating module 113 can be disposed on either side of the module bracket 111. In a specific implementation, referring again to FIG6 , the second rotating module 113 can also include a second swing arm 1131, a second support arm 1132, a second housing bracket 1133, a second door panel 1134, and a second connecting rod 1135. The second door panel 1134 can be used to support and be fixedly connected to the flexible display screen. The second swing arm 1131 and the second support arm 1132 can be disposed on a side of the second door panel 1134 facing away from the flexible display screen. The second swing arm 1131 and the second support arm 1132 are distributed along the length of the rotating shaft mechanism and are rotatably connected to the module bracket 111. The second housing bracket 1133 can be located on a side of the second swing arm 1131 and the second support arm 1132 facing away from the second door panel 1134 and can be fixedly connected to the second housing.

[0092] As shown in Figures 6 and 10, similar to the first swing arm 1121, the second swing arm 1131 can also be connected to the swing arm bracket 1111 by rotation. In specific implementation, the end of the second swing arm 1131 used for connection with the swing arm bracket 1111 can be provided with a second arc-shaped rotating block 11311, and accordingly, the swing arm bracket 1111 can be provided with a second arc-shaped groove 11113, and the second arc-shaped rotating block 11311 can be slidably set in the second arc-shaped groove 11113.

[0093] A second slot 11331 may be provided on the side of the second housing bracket 1133 facing the second swing arm 1131. The end of the second swing arm 1131 away from the swing arm bracket 1111 may be disposed within the second slot 11331. Hinge holes may be provided on the end of the second swing arm 1131 away from the swing arm bracket 1111 and on the wall of the second slot 11331. The second swing arm 1131 may be rotatably connected to the second housing bracket 1133 by rotating a pin disposed within the hinge holes. The second housing bracket 1133 may also be provided with a second slide groove 11332. The second slide groove 11332 and the second slot 11331 may be located on the same side of the second housing bracket 1133. The end of the second support arm away from the module bracket is mounted within the second slide groove and can slide within the second slide groove.

[0094] In addition, the number of second support arms 1132 can also be one or more, and multiple second support arms 1132 can be arranged along the length of the rotating shaft mechanism. Accordingly, the second housing bracket 1133 can be provided with second sliding grooves 11332 corresponding to the one or more second support arms 1132. Each second support arm 1132 is slidably assembled in the corresponding second sliding groove 11332. Through the cooperation of multiple sets of second support arms 1132 and the second sliding grooves 11332, the connection stability between the second support arms 1132 and the second housing bracket 1133 is improved.

[0095] 4 and 6 , the second door panel 1134 can be rotatably connected to the second housing bracket 1133 and to the second swing arm 1131. Specifically, one end of a second connecting rod 1135 can be rotatably connected to the second swing arm 1131, and the other end of the second connecting rod 1135 can be rotatably connected to the second door panel 1134. In this way, the rotatable connection between the second door panel 1134 and the second swing arm 1131 can be achieved via the second connecting rod 1135.

[0096] Second door panel 1134 may include a second door panel bracket 11341 and a second door panel body 11343. Second door panel body 11343 is disposed on a side of second door panel bracket 11341 facing the flexible display of the electronic device to support the flexible display. For example, fourth sub-board 11343 may be fixedly connected to second door panel bracket 11341 by, but not limited to, screws, rivets, adhesive dispensing, or welding.

[0097] In addition, the second rotating module may further include a fourth door panel 11342, which may be located on a side of the second door panel 1134 near the module support to jointly support the flexible display screen with the second door panel 1134. The fourth door panel 11342 may be rotatably connected to the second door panel 1134 and slidably connected to the module support 111, and the fourth door panel 11342 may rotate relative to the module support 111.

[0098] In a specific embodiment, a third mounting groove 11312 may be provided on a side of the second swing arm 1131 facing the second door panel bracket 11341, and a fourth mounting groove 113411 may be provided on a side of the second door panel bracket 11341 facing the second swing arm 1131. One end of the second connecting rod 1135 is rotatably set in the third mounting groove 11312, and the other end of the second connecting rod 1135 is rotatably set in the fourth mounting groove 113411.

[0099] When the second door panel bracket 11341 is rotationally connected to the second shell bracket 1133, the second shell bracket 1133 may be provided with a fourth arc-shaped rotating block 11333. Accordingly, a fourth arc-shaped groove 113412 may be provided on the side of the second door panel bracket 11341 facing the second shell bracket 1133. The fourth arc-shaped block 11333 of the second shell bracket 1133 may be slidably set in the fourth arc-shaped groove 113412, thereby realizing the rotational connection between the second shell bracket 1133 and the second door panel bracket 11341.

[0100] In addition, a second protrusion can be provided on the side of the second door panel bracket facing away from the flexible display screen. Along the length direction of the rotating shaft mechanism, the second protrusion can be located on one side of the second support arm, and a second sliding shaft can be provided on the side of the second support arm facing the second protrusion. Correspondingly, a second rotating groove can be provided on the side of the second protrusion facing the second support arm. The second sliding shaft can be accommodated in the second rotating groove and can slide along the second rotating groove. In this way, the second door panel bracket and the second support arm can be rotated together through the cooperation of the second sliding shaft and the second rotating groove.

[0101] With reference to Figures 15 and 16 , when the fourth door panel 11342 is rotationally connected to the module bracket 111, a second extension wall (not shown) may be provided on the side of the fourth door panel 11342 facing away from the flexible display screen. This second extension wall is provided with a second fixed axis, which may be arranged along the length of the pivot mechanism. Accordingly, along the length of the pivot mechanism, a second track groove 11114 may be provided on one end of the swing arm bracket 1111, near the second rotation module 113. The second fixed axis may be slidably disposed within this second track groove 11114, thereby achieving the rotational connection between the fourth door panel 11342 and the module bracket 111.

[0102] In addition, a sixth arc-shaped rotating block 113421 may be provided on the side of the fourth door panel 11342 facing away from the flexible display screen, and accordingly, a sixth arc-shaped groove 113431 may be provided on the side of the second door panel body 11343 facing away from the flexible display screen. The sixth arc-shaped rotating block 113421 of the fourth door panel 11342 may be slidably arranged in the sixth arc-shaped groove 113431, thereby realizing the rotational connection between the fourth door panel 11342 and the second door panel body 11343.

[0103] After understanding the structure and connection relationship between the first rotating module 112 and the second rotating module 113 and the module bracket 111 provided in the above embodiment of the present application, the movement process of the rotating shaft mechanism is described below.

[0104] First, refer to Figure 17, which is a schematic diagram of the partial structure of the hinge mechanism provided by an embodiment of the present application in the deployed state. When the hinge mechanism is in the deployed state, the first rotating module 112 and the second rotating module 113 are located on either side of the module bracket 111, with an angle of approximately 180 degrees between them. At this time, the first door panel 1124 and the third door panel 11242 facing away from the first housing bracket 1123, and the second door panel 1134 and the fourth door panel 11342 facing away from the second housing bracket 1133 are coplanar. Multiple door panels can provide smooth support for the flexible display.

[0105] Referring to FIG18 , FIG18 is a schematic diagram of the partial structure of the pivot mechanism provided by the embodiment of the present application in the intermediate state. When the pivot mechanism switches from the expanded state to the closed state, the first shell bracket 1123 rotates counterclockwise, and drives the first swing arm 1121 and the first support arm 1122 to rotate counterclockwise synchronously. During the rotation process, the first swing arm 1121 pulls the first door panel 1124 through the first connecting rod 1125. The first door panel 1124 rotates counterclockwise under the constraints of the first connecting rod 1125 and the first shell bracket 1123, so that the end of the first door panel 1124 close to the module bracket 111 moves toward the end away from the module. The third door panel 11242 also rotates counterclockwise relative to the module bracket 111, and driven by the first door panel 1124, the third door panel 11242 also rotates counterclockwise relative to the module bracket 111. At this time, the end of the third door panel 11242 close to the module bracket 111 can gradually form a certain angle with the module bracket 111, and the end of the third door panel 11242 away from the module bracket 111 (that is, the end close to the first door panel 1124) can rotate toward the module bracket 111, and gradually form an opening with the first door panel 1124. Correspondingly, the second housing bracket 1133 rotates clockwise, and drives the second swing arm 1131 and the second support arm 1132 to rotate clockwise synchronously. During the rotation, the second swing arm 1131 pulls the second door panel 1134 through the second connecting rod 1135. The second door panel 1134 rotates clockwise under the constraint of the second connecting rod 1135 and the second housing bracket 1133, so that the end of the second door panel 1134 close to the module bracket 111 is moved toward the end away from the module bracket 111. direction, and driven by the second door panel 1134, the fourth door panel 11342 also rotates clockwise relative to the module bracket 111. At this time, the end of the fourth door panel 11342 close to the module bracket 111 can gradually form a certain angle with the module bracket 111, and the end of the fourth door panel 11342 away from the module bracket 111 (that is, the end close to the second door panel) can be rotated toward the module bracket 111, and gradually form an angle with the second door panel 1134 with an opening toward the side of the first rotating module.

[0106] Referring to FIG19 , FIG19 is a schematic diagram of the partial structure of the hinge mechanism provided in the embodiment of the present application in the closed state. As the hinge mechanism changes from the intermediate state shown in FIG18 to the closed state shown in FIG19 , the first housing bracket 1123 continues to rotate counterclockwise and, together with the first connecting rod 1125, pulls the first door panel 1124 counterclockwise. The second housing bracket 1133 continues to rotate clockwise and, together with the second connecting rod 1135, pulls the second door panel 1134 clockwise until the first door panel 1124 rotates to the first position. When the second door panel 1134 rotates to the second position, the first housing bracket 1123 and the second housing bracket 1133 are approximately opposite each other, at which point the hinge mechanism switches to the closed state. When the hinge mechanism is closed, an angle is formed between the first door panel 1124 and the second door panel 1134. Correspondingly, certain angles are also formed between the first door panel 1124 and the third door panel 11242, and between the second door panel 1134 and the fourth door panel 11342. The angle formed by the first door panel 1124 and the third door panel 11242 is positioned opposite the angle formed by the second door panel 1134 and the fourth door panel 11342. In this way, the first door panel 1124, the third door panel 11242, the second door panel 1134, the fourth door panel 11342, and the module bracket 111 collectively form a teardrop-shaped screen-holding space, thereby meeting the bending requirements of the electronic device's flexible display, reducing the risk of squeezing or stretching the flexible display, and extending its service life.

[0107] It can be understood that when the hinge mechanism rotates from the closed state shown in Figure 19 to the expanded state shown in Figure 17, the various components of the first rotating module 112 and the various components of the second rotating module 113 can move in the opposite process to the above description, which will not be repeated here.

[0108] FIG20 is another schematic diagram of the structure of the first door panel 1124 and the third door panel 11242 provided in an embodiment of the present application. In addition to being connected via the aforementioned virtual axis, the first door panel 1124 and the third door panel 11242 can also be connected via a first flexible member 11244, as shown in FIG20 . Utilizing the deformable nature of the first flexible member 11244, the first door panel 1124 and the third door panel 11242 can achieve relative rotation through deformation of the first flexible member 11244, allowing the first door panel 1124 and the third door panel 11242 to achieve both a parallel and coplanar connection when the hinge mechanism is in the extended state, and a bent connection at a certain angle when the hinge mechanism is in the closed state, thereby meeting the requirements of the flexible display in different states.

[0109] In a specific implementation, the first flexible member 11244 can be disposed on the first door panel body 11243 and the third door panel 11242 facing the flexible display screen, and the first flexible member can be fixedly connected to the first door panel body 11243 and the third door panel 11242 respectively by bonding. For example, the first flexible member 11244 includes, but is not limited to, materials such as carbon fiber and Kevlar.

[0110] Figure 21 is a schematic diagram of the structure of another embodiment of the present application, including a first door panel 1124 and a third door panel 11242. Figure 21 also illustrates an example of connecting the first and third door panels 11242 using a first flexible member 11244. Unlike the previous embodiment, in this embodiment, the first flexible member 11244 can be connected between the first door panel body 11243 and the third door panel 11242. In this case, the first door panel body 11243 and the third door panel 11242 can be integrally formed, with the deformable first flexible member 11244 formed by thinning the connection between the two.

[0111] Of course, the second door panel and the fourth door panel can also be connected through a second flexible component. Similarly, the second flexible component can be adhered to the side of the second door panel and the fourth door panel away from the second door panel bracket, or it can be connected between the second door panel and the fourth door panel. I will not go into details here.

[0112] FIG22 is a schematic structural diagram of the first door panel 1124 provided in an embodiment of the present application. Referring to FIG22 , in some possible embodiments of the present application, the first door panel body and the first door panel bracket may also be an integral structure. When the first door panel 1124 is rotatably connected to the first housing bracket 1123, a third arcuate groove 112412 that cooperates with the third arcuate rotating block 11233 (see FIG6 ) of the first housing bracket 1123 may be directly provided on the integral first door panel 1124. Furthermore, when the first door panel 1124 is rotatably connected to the first swing arm 1121, a second mounting groove 112411 may be provided on a side of the first door panel 1124 facing away from the flexible display screen, and one end of the first connecting rod 1125 is hingedly provided in the second mounting groove 112411, while the other end is hingedly provided in the first mounting groove 11212 of the first swing arm 1121, thereby rotatably connecting the first door panel 1124 to the first swing arm 1121 via the first connecting rod 1125. This design is helpful to simplify the structure of the first door panel 1124, thereby simplifying the overall structure of the hinge mechanism and reducing its assembly difficulty.

[0113] Similarly, the second door panel body and the second door panel bracket can also be an integrated structure. In this case, when the second door panel is rotatably connected to the second shell bracket, a fourth arc-shaped groove that cooperates with the fourth arc-shaped rotating block of the second shell bracket can be directly set on the integrated second door panel, and when the second door panel is rotatably connected to the second swing arm, a fourth mounting groove can be set on the side of the second door panel facing away from the flexible display screen, and one end of the second connecting rod is hingedly set in the fourth mounting groove, and the other end is hingedly set in the third mounting groove of the second swing arm, so that the second door panel is rotatably connected through the second connecting rod.

[0114] FIG23 is a schematic diagram of the partial structure of another rotating shaft mechanism provided in an embodiment of the present application, and FIG24 is a cross-sectional view of the rotating shaft mechanism shown in FIG23. Referring to FIG23 and FIG24 together, in this embodiment, the structure and arrangement of the first rotating module and the second rotating module are roughly the same as those of the aforementioned embodiments, and will not be described in detail here. Unlike the aforementioned embodiments, the base 12 in this embodiment is no longer arranged on the side of the rotating shaft mechanism away from its support surface, but is arranged between the first door panel 1124 and the second door panel 1134. Furthermore, when the first rotating module includes a third door panel 11242 and the second rotating module includes a fourth door panel 11342, the base 12 can be located between the third door panel 11242 and the fourth door panel 11342, and the base 12 can be located on the side of the module bracket 111 facing the flexible display screen. When the hinge mechanism is in the deployed state, the surface of the base 12 facing away from the module bracket 111 is coplanar with the surfaces of the first and third door panels 1124 and 11242 facing away from the first swing arm 1121, and is also coplanar with the surfaces of the second and fourth door panels 1134 and 11342 facing away from the second swing arm 1131. In the deployed state, the surfaces of the base 12, the first and third door panels 1124, 11242, the second and fourth door panels 1134, and 11342 all lie on the same plane. In this state, the base 12 can be considered the fifth sub-panel of the hinge mechanism, which, together with the other four sub-panels, can support the flexible display, thereby providing better support for the flexible display and further improving its reliability.

[0115] Please refer to Figure 6 again. In the embodiment of the present application, in order to better realize the expansion and closing of the hinge mechanism 1, the hinge mechanism 1 can also be provided with a damping component 114 that can provide damping force for the above-mentioned first rotating module 112 and second rotating module 113, so that the first rotating module 112 and second rotating module 113 can rotate stably under the action of the damping force, avoid accidental opening and closing of the electronic device, and realize the hovering of the two shells at the set position.

[0116] Referring to Figure 25 , Figure 25 is a schematic diagram of a partial structure of a rotating shaft mechanism provided in an embodiment of the present application. The damping assembly 114 may include an elastic member 1141 and a conjoined cam 1142. Along the length of the rotating shaft mechanism, the conjoined cam 1142 may be located between the elastic member and the first support arm 1122 and the second support arm 1132. The end of the first support arm 1122 facing the conjoined cam 1142 may be provided with a first cam surface, the end of the second support arm 1132 facing the conjoined cam 1142 may be provided with a second cam surface, the end of the conjoined cam 1142 facing the first support arm 1122 may be provided with a third cam surface, and the end facing the second support arm 1132 may be provided with a fourth cam surface. Under the action of the elastic member 1141, the first cam surface abuts the third cam surface, and the second cam surface abuts the cam surface.

[0117] In the embodiment of the present application, each cam surface may include multiple raised portions and recessed portions. When the inclined surfaces of the raised portions of the two cam surfaces come into contact, a damping force may be generated between the two cam surfaces to prevent the two cam surfaces from continuing to rotate relative to each other. Based on this, when the two support arms rotate around the corresponding pins, the damping assembly 114 may provide a certain damping force for each of the two support arms. The damping force may be transmitted to the first shell bracket via the first support arm 1122 and to the second shell bracket via the second support arm 1132, thereby acting on the two shells of the electronic device through the two shell brackets, reducing the risk of the electronic device being opened or closed by mistake, and enabling the two shells to hover at a set position. In addition, by providing a damping assembly, the user can obtain a more obvious operating feel when expanding or closing the electronic device, which is conducive to improving the user experience.

[0118] Continuing with reference to FIG25 , the pivot mechanism may further include one or more intermediate shafts 1114 disposed between the damping bracket 1112 and the swing arm bracket 1111 (see FIG6 ). These intermediate shafts 1114 may be located between the two pins 1113 hingedly connected to the first support arm 1122 and the second support arm 1132, and the intermediate shafts 1114 may also extend along the length of the pivot mechanism. The conjoined cam 1142 may be provided with a plurality of through-holes, through which the conjoined cam 1142 may be sleeved on the pins 1113 and the intermediate shaft 1114. The elastic member 1141 may include a plurality of springs arranged side by side, each spring also sleeved on the pins 1113 and the intermediate shaft 1114, to prevent the springs from shifting when elastic deformation occurs.

[0119] In addition, the number of damping components 114 can be multiple groups. For example, in the embodiment shown in Figure 23, when the number of first support arms 1122 and second support arms 1132 are three respectively, the damping components 114 can be two groups. The two groups of damping components 114 are respectively arranged between two adjacent first support arms 1122 (or two adjacent second support arms 1132) to provide sufficient damping force for the first rotating module and the second rotating module, thereby further improving the opening and closing reliability of the electronic device.

[0120] In addition to the above structure, in some embodiments of the present application, the rotating shaft mechanism may also include a synchronization assembly. Continuing with Figure 24, the synchronization assembly 115 may include a first driving gear 1151 disposed on the first support arm 1122 and a second driving gear 1152 disposed on the second support arm 1132. The first driving gear 1151 and the second driving gear 1152 are in transmission connection. Thus, when one support arm rotates around the module bracket, it can drive the other support arm to rotate synchronously around the module bracket in the opposite or opposite directions, and the two support arms rotate through the same angle.

[0121] Referring to Figure 26, Figure 26 is a cross-sectional view of the rotating shaft mechanism shown in Figure 25 at point AA. In an embodiment of the present application, the synchronization component may further include a driven gear 1153, which may be arranged between the two driving gears. In addition, the driven gears 1153 may be an even number, and adjacent driven gears 1153 and adjacent driven gears 1153 are meshed with the driving gears, so that the two driving gears can achieve synchronous rotation through the even number of driven gears 1153. In a specific implementation, the driven gear 1153 may be sleeved on the intermediate shaft 1114 to improve the movement stability of the synchronization component.

[0122] As the support arm rotates around the module bracket, it drives the housing bracket on the same side to rotate at the same angle. This allows the two housing brackets to rotate synchronously as the two support arms rotate synchronously. Furthermore, because the housing brackets are fixedly connected to the housing of the electronic device, the synchronous rotation of the two housing brackets can also cause the two housings of the electronic device to rotate synchronously. This prevents the application of instantaneous forces on the flexible display screens fixed to the two housings, thereby improving the reliability of the flexible display screens.

[0123] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A rotating shaft mechanism, It is characterized in that The invention comprises a first rotating module, a second rotating module and a module bracket, wherein the first rotating module and the second rotating module are respectively arranged on both sides of the module bracket, wherein: The first rotating module comprises a first swing arm, a first supporting arm, a first shell bracket, a first door panel and a first connecting rod, wherein the first door panel is used to support a flexible display screen, the first swing arm and at least part of the first supporting arm are arranged on a side of the first door panel away from the flexible display screen, the first swing arm and the first supporting arm are distributed along the length direction of the rotating shaft mechanism, and the first swing arm and the first supporting arm are respectively rotatably connected to the module bracket, and the rotation axes of the first supporting arm and the first swing arm on the module bracket are different and parallel to each other; at least part of the first shell bracket is arranged on a side of the first swing arm and the first supporting arm away from the first door panel, the first swing arm is rotatably connected to the first shell bracket, the first supporting arm is slidably connected to the first shell bracket, and the first door panel is rotatably connected to the first shell bracket; one end of the first connecting rod is rotatably connected to the first swing arm, and the other end is rotatably connected to the first door panel; The second rotating module comprises a second swing arm, a second supporting arm, a second shell bracket, a second door panel and a second connecting rod, the second door panel is used to support the flexible display screen, the second swing arm and at least part of the second supporting arm are arranged on a side of the second door panel away from the flexible display screen, the second swing arm and the second supporting arm are distributed along the length direction of the rotating shaft mechanism, and the second swing arm and the second supporting arm are respectively rotatably connected to the module bracket, the second supporting arm and the second swing arm have different rotation axes on the module bracket and are parallel to each other; at least part of the second shell bracket is arranged on a side of the second swing arm and the second supporting arm away from the second door panel, the second swing arm is rotatably connected to the second shell bracket, the second supporting arm is slidably connected to the second shell bracket, and the second door panel is rotatably connected to the second shell bracket; one end of the second connecting rod is rotatably connected to the second swing arm, and the other end is rotatably connected to the second door panel; When the first shell bracket and the second shell bracket rotate relative to each other, the first shell bracket drives the first support arm and the first swing arm to rotate around the module bracket, and the first connecting rod drives the first door panel to rotate relative to the first shell bracket, so that the end of the first door panel close to the module bracket moves in a direction away from the module bracket; the second shell bracket drives the second support arm and the second swing arm to rotate around the module bracket, and the second connecting rod drives the second door panel to rotate relative to the second shell bracket, so that the end of the second door panel close to the module bracket moves in a direction away from the module bracket; when the first door panel rotates to the first position and the second door panel rotates to the second position, the first door panel forms an angle with the second door panel, and together with the module bracket, encloses a screen space for accommodating the flexible display screen.

2. The rotating shaft mechanism according to claim 1, It is characterized in that A first mounting groove is provided on a side of the first swing arm facing the first door panel, a second mounting groove is provided on a side of the first door panel facing the first swing arm, one end of the first connecting rod is rotatably disposed in the first mounting groove, and the other end of the first connecting rod is rotatably disposed in the second mounting groove; A third mounting groove is provided on a side of the second swing arm facing the second door panel, a fourth mounting groove is provided on a side of the second door panel facing the second swing arm, one end of the second connecting rod is rotatably provided in the third mounting groove, and the other end of the second connecting rod is rotatably provided in the fourth mounting groove.

3. The rotating shaft mechanism according to claim 1 or 2, It is characterized in that A first protrusion is provided on a side of the first door panel facing away from the flexible display screen, and along the length direction of the rotating shaft mechanism, the first protrusion is located on one side of the first supporting arm, a first rotating slide groove is provided on the side of the first protrusion facing the first supporting arm, and a first sliding shaft is provided on the side of the first supporting arm facing the first protrusion, and the first sliding shaft is slidably provided in the first rotating slide groove; A second protrusion is provided on the side of the second door panel facing away from the flexible display screen. Along the length direction of the rotating shaft mechanism, the second protrusion is located on one side of the second support arm. A second rotating groove is provided on the side of the second protrusion facing the second support arm. A second sliding shaft is provided on the side of the second support arm facing the second protrusion. The second sliding shaft is slidably provided in the second rotating groove.

4. The rotating shaft mechanism according to any one of claims 1 to 3, It is characterized in that The module bracket is provided with a first arc groove and a second arc groove on both sides thereof; The first swing arm has a first arc-shaped rotating block, and the first arc-shaped rotating block is rotatably disposed in the first arc-shaped slot; The second swing arm has a second arc-shaped rotating block, and the second arc-shaped rotating block is rotatably disposed in the second arc-shaped groove.

5. The rotating shaft mechanism according to any one of claims 1 to 4, It is characterized in that The first housing support is provided with a first sliding groove, and the first supporting arm is slidably disposed in the first sliding groove; The second housing support is provided with a second sliding groove, and the second supporting arm is slidably disposed in the second sliding groove.

6. The rotating shaft mechanism according to any one of claims 1 to 5, It is characterized in that The first housing support is provided with a third arc-shaped rotating block, the first door panel is provided with a third arc-shaped groove, and the third arc-shaped rotating block is rotatably arranged in the third arc-shaped groove; The second housing support is provided with a fourth arc-shaped rotating block, the second door panel is provided with a fourth arc-shaped groove, and the fourth arc-shaped rotating block is rotatably disposed in the fourth arc-shaped groove.

7. The rotating shaft mechanism according to any one of claims 1 to 6, It is characterized in that The first rotating module further includes a third door panel, the third door panel is located on a side of the first door panel close to the module bracket, and the third door panel is used to support the flexible display screen together with the first door panel; the third door panel is rotatably connected to the first door panel, the third door panel is slidably connected to the module bracket, and the third door panel can rotate relative to the module bracket; The second rotating module also includes a fourth door panel, which is located on a side of the second door panel close to the module bracket, and is used to support the flexible display screen together with the second door panel; the fourth door panel is rotatably connected to the second door panel, the fourth door panel is slidably connected to the module bracket, and the fourth door panel can rotate relative to the module bracket.

8. The rotating shaft mechanism according to claim 7, It is characterized in that A fifth arc-shaped rotating block is disposed on a side of the third door panel away from the flexible display screen, a fifth arc-shaped groove is disposed on a side of the first door panel away from the flexible display screen, and the fifth arc-shaped rotating block is rotatably disposed in the fifth arc-shaped groove; A sixth arc-shaped rotating block is arranged on a side of the fourth door panel facing away from the flexible display screen, a sixth arc-shaped groove is arranged on a side of the second door panel facing away from the flexible display screen, and the sixth arc-shaped rotating block is rotatably arranged in the sixth arc-shaped groove.

9. The rotating shaft mechanism according to claim 7 or 8, It is characterized in that The first door panel is connected to the third door panel via a first flexible member, and the second door panel is connected to the fourth door panel via a second flexible member.

10. The rotating shaft mechanism according to claim 9, It is characterized in that The first flexible component is disposed on a side of the first door panel and the third door panel facing the flexible display screen, and the first flexible component is bonded to the first door panel and the third door panel respectively; The second flexible component is disposed on a side of the second door panel and the fourth door panel facing the flexible display screen, and the second flexible component is bonded to the second door panel and the fourth door panel respectively.

11. The rotating shaft mechanism according to claim 9, It is characterized in that The first flexible member is connected between the first door panel and the third door panel, and the second flexible member is connected between the second door panel and the fourth door panel.

12. The rotating shaft mechanism according to any one of claims 7 to 11, It is characterized in that The two sides of the end of the module bracket are respectively provided with a first track groove and a second track groove; A first extension wall is provided on a side of the third door panel facing away from the flexible display screen, the first extension wall is provided with a first fixed shaft arranged along the length direction of the rotating shaft mechanism, and the first fixed shaft is slidably arranged in the first track groove; A second extending wall is provided on a side of the fourth door panel facing away from the flexible display screen, and a second fixed shaft is provided on the second extending wall along the length direction of the rotating shaft mechanism, and the second fixed shaft is slidably disposed in the second track groove.

13. The rotating shaft mechanism according to any one of claims 1 to 12, It is characterized in that The first door panel comprises a first door panel body and a first door panel bracket, wherein the first door panel body is fixed to a side of the first door panel bracket facing the flexible display screen; The second door panel includes a second door panel body and a second door panel bracket, and the second door panel body is fixed to a side of the second door panel bracket facing the flexible display screen.

14. The rotating shaft mechanism according to claim 13, It is characterized in that The first door panel body is fixedly connected to the first door panel bracket; or, the first door panel body and the first door panel bracket are an integrated structure; The second door panel body is fixedly connected to the second door panel bracket; or, the second door panel body and the second door panel bracket are an integral structure.

15. The rotating shaft mechanism according to any one of claims 1 to 14, It is characterized in that The rotating shaft mechanism also includes a base, and the module bracket is fixed to the base.

16. The rotating shaft mechanism according to claim 15, It is characterized in that The base is supported on a side of the module bracket facing away from the first door panel and the second door panel.

17. The rotating shaft mechanism according to claim 15, It is characterized in that, The base is disposed between the first door panel and the second door panel; When the hinge mechanism is in an expanded state, a side of the base facing away from the module bracket is coplanar with a side of the first door panel facing away from the first swing arm and a side of the second door panel facing away from the second swing arm.

18. An electronic device, It is characterized in that It comprises a first shell, a second shell, a flexible display screen and a hinge mechanism as claimed in any one of claims 1 to 17, wherein: The first shell and the second shell are respectively arranged on two sides of the rotating shaft mechanism, the first shell is fixedly connected to the first shell bracket, and the second shell is fixedly connected to the second shell bracket; The flexible display screen continuously covers the first door panel, the second door panel and the rotating shaft mechanism, and the flexible display screen is fixedly connected to the first door panel and the second door panel.

Images