A rotating shaft mechanism and electronic device

Abstract

The application discloses a rotating shaft mechanism and electronic equipment. The rotating shaft mechanism comprises a base, a first shell fixing frame, a second shell fixing frame and a supporting assembly. The first shell fixing frame and the second shell fixing frame are arranged on the two sides of the base. The supporting assembly comprises a first supporting part, a second supporting part and a third supporting part. The first supporting part is arranged at the end of the first shell fixing frame and is provided with a first protrusion and a first groove. The second supporting part is arranged at the end of the second shell fixing frame and is provided with a second protrusion and a second groove. The third supporting part is arranged at the end of the base and is provided with a fourth protrusion and a fourth groove on the side close to the second shell fixing frame. When the rotating shaft mechanism is in an unfolded state, the third protrusion is limited in the first groove, and the fourth protrusion is limited in the second groove. When the rotating shaft mechanism is in a closed state, the first protrusion is limited in the third groove, and the second protrusion is limited in the fourth groove.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic equipment, and particularly relates to a rotating shaft mechanism and electronic equipment. BACKGROUND

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

[0003] As a key component for realizing the folding function of foldable electronic equipment, the reliability of the rotating shaft mechanism is crucial to the overall reliability of the electronic equipment. The rotating shaft mechanism generally includes multiple structural components connected by transmission, and the linkage between the multiple structural components enables the electronic equipment to be closed or unfolded. However, when the electronic equipment falls or collides, the structural components of the rotating shaft mechanism are prone to dislocation in the impact, which not only damages the strength of the structural components, but also causes pulling on other elements of the electronic equipment, seriously affecting the reliability of the electronic equipment. SUMMARY

[0004] The present application provides a rotating shaft mechanism and electronic equipment to improve the structural reliability of the rotating shaft mechanism and the overall reliability of the electronic equipment.

[0005] In a first aspect, the present application provides a rotating shaft mechanism, which can include a main shaft, a first housing fixing frame, a second housing fixing frame and a support assembly. The first housing fixing frame and the second housing fixing frame are respectively arranged on both sides of the main shaft, and the first housing fixing frame and the second housing fixing frame can rotate relative to the main shaft. The support assembly includes a first support part, a second support part and a third support part. The first support part can be arranged at an end of the first housing fixing frame along the axial direction of the rotating shaft mechanism, and the first support part is located on the side of the first housing fixing frame close to the main shaft, and the first support part is provided with a first protrusion and a first groove. The second support part can be arranged at an end of the second housing fixing frame along the axial direction of the rotating shaft mechanism, and the second support part is located on the side of the second housing fixing frame close to the main shaft, and the second support part is provided with a second protrusion and a second groove. The third support part can be arranged at an end of the main shaft along the axial direction of the rotating shaft mechanism, and the side of the third support part close to the first housing fixing frame can be provided with a third protrusion and a third groove, and the side of the third support part close to the second housing fixing frame can be provided with a fourth protrusion and a fourth groove. When the rotating shaft mechanism is in an unfolded state, the third protrusion can be limited in the first groove, and the fourth protrusion can be limited in the second groove, and when the rotating shaft mechanism is in a closed state, the first protrusion can be limited in the third groove, and the second protrusion can be limited in the fourth groove. Alternatively, when the rotating shaft mechanism is in an unfolded state, the first protrusion can be limited in the third groove, and the second protrusion can be limited in the fourth groove, and when the rotating shaft mechanism is in a closed state, the third protrusion can be limited in the first groove, and the fourth protrusion can be limited in the second groove.

[0006] In the present application, when the rotating shaft mechanism is in an unfolded state, by the cooperation of the third protrusion and the first groove, and the cooperation of the fourth protrusion and the second groove, or by the cooperation of the first protrusion and the third groove, and the cooperation of the second protrusion and the fourth groove, at least the transverse positioning of the first support part, the second support part and the third support part can be realized, the risk of transverse displacement of the first support part and the second support part is reduced, and the risk of misalignment of the first housing fixing frame, the second housing fixing frame and the base in the unfolded state of the rotating shaft mechanism is reduced. Similarly, when the rotating shaft mechanism is in a closed state, by the cooperation of the first protrusion and the third groove, and the cooperation of the second protrusion and the fourth groove, or by the cooperation of the third protrusion and the first groove, and the cooperation of the fourth protrusion and the second groove, at least the transverse positioning of the first support part, the second support part and the third support part can be realized, the risk of transverse displacement of the first support part and the second support part is reduced, and the risk of misalignment of the first housing fixing frame, the second housing fixing frame and the base in the closed state of the rotating shaft mechanism is reduced.

[0007] Based on the above-mentioned rotating shaft mechanism, during the process that the electronic device changes from the unfolded state to the closed state, the first shell fixing frame and the second shell fixing frame move towards each other, when the first shell fixing frame drives the first swing arm to rotate around the main shaft in the clockwise direction, the first swing arm can drive the first connecting piece to move towards the first swing arm in the first track groove of the main shaft, so as to drive the first supporting arm to rotate around the main shaft in the counterclockwise direction; when the second shell fixing frame drives the second swing arm to rotate around the main shaft in the counterclockwise direction, the second swing arm can drive the second connecting piece to move towards the second supporting arm in the second track groove of the main shaft, so as to drive the second supporting arm to rotate around the main shaft in the clockwise direction. Thus, the folding and unfolding functions of the rotating shaft mechanism can be realized.

[0008] It should be understood that the matching surface between the groove and the protrusion in the present application is not a plane. Taking the matching between the third protrusion and the first groove as an example, it can be concluded from the fact that the third protrusion is limited in the first groove that the first groove surrounds or partially surrounds the third protrusion, and the contact surface between the first groove and the third protrusion is a curved surface composed of multiple planes with different orientations. Correspondingly, the contact surface between the third protrusion and the first groove also includes multiple planes with different orientations, and each plane of the third protrusion and each plane of the first groove abuts against each other, thereby limiting the freedom of the first supporting part in multiple directions including the horizontal direction, effectively limiting the freedom of the first shell fixing frame in multiple directions. The rotating shaft mechanism in the prior art does not have related supporting structures, and when the electronic device using such a rotating shaft mechanism falls or collides, the shell fixing frame is easy to displace relative to the main shaft, thereby causing misalignment. Compared with the prior art, the rotating shaft mechanism provided by the present application uses the matching of the protrusion and the groove, so that the electronic device using the rotating shaft mechanism can effectively reduce the risk of misalignment between the shell fixing frame and the main shaft when the electronic device falls or collides, and improve the structural stability of the rotating shaft mechanism.

[0009] In some embodiments, the first plane is defined as a plane perpendicular to the axial direction of the rotating shaft mechanism, and the projection of the third support portion on the first plane can cover the projection of the main shaft on the first plane. That is, the third support portion is arranged beyond the main shaft, so that the third support portion has sufficient space to arrange the protrusions and the grooves on both sides thereof, and facilitates the cooperation with the first support portion and the second support portion.

[0010] In some embodiments, the third support portion can include a main body and a baffle, and the third protrusion, the third groove, the fourth protrusion and the fourth groove can be arranged on the main body, and the baffle can be located on the side of the main body away from the main shaft. Similarly, the first plane is defined as a plane perpendicular to the axial direction of the rotating shaft mechanism, and the projection of the baffle on the first plane can cover at least part of the projection of the first support portion on the first plane and at least part of the projection of the second support portion on the first plane when the rotating shaft mechanism is in the unfolded state and in the closed state. Through this design, the first support portion and the second support portion can be positioned in the axial direction, and the risk of axial misalignment of the first support portion and the second support portion can be reduced, thereby reducing the risk of axial misalignment of the first housing fixing frame, the second housing fixing frame and the main shaft.

[0011] In a specific implementation, the main body and the baffle of the third support portion can be an integral structure, so as to improve the structural strength of the third support portion and reduce the assembly difficulty of the rotating shaft mechanism.

[0012] In some embodiments, the groove wall of the first groove can include a first concave surface, and the surface of the third protrusion can include a third convex surface consistent with the shape of the first concave surface, so as to increase the fitting degree of the surface of the third protrusion and the groove wall of the first groove, and reduce or avoid the risk of movement of the third protrusion in the first groove. Similarly, the groove wall of the second groove includes a second concave surface, and the surface of the fourth protrusion includes a fourth convex surface consistent with the shape of the second concave surface, so as to increase the fitting degree of the surface of the fourth protrusion and the groove wall of the second groove, and reduce or avoid the risk of movement of the fourth protrusion in the second groove.

[0013] For example, the first concave surface can include a first inclined surface, and the third convex surface can include a third inclined surface, and the third inclined surface of the third convex surface can gradually incline away from the support surface of the main shaft in the direction of the third protrusion pointing to the fourth protrusion. The second concave surface can include a second inclined surface, and the fourth convex surface can include a fourth inclined surface, and the fourth inclined surface of the fourth convex surface gradually inclines away from the support surface of the main shaft in the direction of the fourth protrusion pointing to the third protrusion. When the rotating shaft mechanism is in the unfolded state, the third protrusion is limited in the first groove, the third inclined surface of the third convex surface is parallel to the first inclined surface of the first concave surface and abuts against each other, and the fourth inclined surface of the fourth convex surface is parallel to the second inclined surface of the second concave surface and abuts against each other.

[0014] Based on the same principle, the groove wall of the third groove can comprise a third concave surface, and the surface of the first protrusion can comprise a first convex surface consistent with the shape of the third concave surface, thereby increasing the fitting degree of the first protrusion and the third groove and reducing or avoiding the risk of movement of the first protrusion in the third groove. Similarly, the groove wall of the fourth groove can comprise a fourth concave surface, and the surface of the second protrusion can comprise a second convex surface consistent with the shape of the fourth concave surface, thereby increasing the fitting degree of the second protrusion and the fourth groove and reducing or avoiding the risk of movement of the second protrusion in the fourth groove.

[0015] For example, the first convex surface can comprise a first inclined surface, and correspondingly, the third concave surface can comprise a third inclined surface, which gradually inclines toward the support surface of the main shaft in the direction of the fourth groove along the third groove; the second convex surface can comprise a second inclined surface, and the fourth concave surface can comprise a fourth inclined surface, which gradually inclines toward the support surface of the main shaft in the direction of the third groove along the fourth groove. When the rotating shaft mechanism is in the closed state, the first inclined surface of the first convex surface is parallel to and abuts against the third inclined surface of the third concave surface, and the second inclined surface of the second convex surface is parallel to and abuts against the fourth inclined surface of the fourth concave surface.

[0016] In some embodiments, the surface of the third protrusion and the groove wall of the third groove can be connected by a first connecting camber, and the surface of the fourth protrusion and the groove wall of the fourth groove can be connected by a second connecting camber. In this way, when the rotating shaft mechanism switches from the unfolded state to the closed state or from the closed state to the unfolded state, the first connecting camber can provide a guide function for the first protrusion or the first groove of the first support part, and the second connecting camber can provide a guide function for the second protrusion or the second groove of the second support part, thereby reducing the risk of jamming of the first support part and the third support part, and the second support part and the third support part, and improving the smoothness of the rotation of the first shell fixing frame and the second shell fixing frame relative to the main shaft.

[0017] In some embodiments, the first support part and the first shell fixing frame can be an integral structure, thereby improving the connection strength of the first support part and the first shell fixing frame.

[0018] Similarly, the second support part and the second shell fixing frame can also be an integral structure, thereby improving the connection strength of the second support part and the second shell fixing frame. In addition, the third support part and the main shaft can also be an integral structure, thereby improving the connection strength of the third support part and the main shaft.

[0019] In some embodiments, the number of the first support parts and the second support parts can be two respectively, two first support parts are respectively arranged at two ends of the first shell fixing frame along the axial direction of the rotating shaft mechanism, and two second support parts are respectively arranged at two ends of the second shell fixing frame along the axial direction of the rotating shaft mechanism. Correspondingly, the number of the third support parts can also be two, two third support parts are respectively arranged at two ends of the main shaft along the axial direction of the rotating shaft mechanism. In this way, the support assembly can limit the first shell fixing frame and the second shell fixing frame at both ends of the rotating shaft mechanism, thereby further reducing the risk of dislocation of the first shell fixing frame and the second shell fixing frame relative to the main shaft, and improving the structural reliability of the electronic device using the rotating shaft mechanism in a drop or impact scenario.

[0020] In some embodiments, the rotating shaft mechanism can further include a rotating module, and the first shell fixing frame and the second shell fixing frame can be rotated relative to the main shaft through the rotating module. The specific implementation of the rotating module is not limited, as long as the first shell fixing frame and the second shell fixing frame can be rotated relative to the main shaft to realize the folding and unfolding functions of the rotating shaft mechanism.

[0021] For example, in a specific embodiment, the rotating module can include a first rotating assembly and a second rotating assembly, and the first rotating assembly and the second rotating assembly are respectively located between the first shell fixing frame and the second shell fixing frame. The first rotating assembly can include a first swing arm, a first support arm and a first connecting piece, the first swing arm is rotationally connected with the main shaft, the first swing arm is slidingly connected with the first shell fixing frame, the first support arm is rotationally connected with the second shell fixing frame, the first connecting piece is located between the first swing arm and the first support arm, and the first connecting piece is rotationally connected with the first swing arm and the first support arm respectively; the second rotating assembly can include a second swing arm, a second support arm and a second connecting piece, the second swing arm is rotationally connected with the main shaft, the second swing arm is slidingly connected with the second shell fixing frame, the second support arm is rotationally connected with the first shell fixing frame, the second connecting piece is located between the second swing arm and the second support arm, and the second connecting piece is rotationally connected with the second swing arm and the second support arm respectively. The main shaft is provided with a first track groove and a second track groove, the first connecting piece can move along the first track groove to limit the movement track of the first connecting piece through the first track groove, and the second connecting piece can move along the second track groove to limit the movement track of the second connecting piece through the second track groove.

[0022] In a second aspect, the application further provides an electronic device, which comprises a first shell, a second shell, a flexible display screen and the hinge mechanism of the first aspect, wherein the first shell and the second shell are arranged on opposite sides of the hinge mechanism, the first shell fixing frame is fixedly connected with the first shell, and the second shell fixing frame is fixedly connected with the second shell. The flexible display screen continuously covers the first shell, the second shell and the hinge mechanism, and is fixedly connected with the first shell and the second shell. In the unfolded state and the closed state of the electronic device, the third support part can be matched with the first support part and the second support part, so as to limit the relative position between the first shell fixing frame and the main shaft and between the second shell fixing frame and the main shaft, thereby reducing the risk of dislocation of the first shell and the second shell relative to the hinge mechanism, and improving the reliability of the electronic device.

[0023] In a possible implementation of the application, the main shaft comprises a base and a cover plate, the cover plate covers the base, the base is provided with a first arc-shaped groove, and the cover plate comprises a first protrusion arranged towards the first arc-shaped groove, so that the gap between the surface of the first protrusion and the groove surface of the first arc-shaped groove can be used as the first track groove. In addition, the first connecting piece can comprise a first arc-shaped surface and a second arc-shaped surface, and in the unfolded state and the closed state of the electronic device, the first arc-shaped surface abuts against the surface of the first protrusion, and the second arc-shaped surface abuts against the groove surface of the first arc-shaped groove. Thus, the surface of the first protrusion and the groove surface of the first arc-shaped groove limit the first connecting piece in the first track groove, so that the position of the first connecting piece is relatively stable in the unfolded state and the closed state of the hinge mechanism, and no virtual position shaking occurs, thereby improving the reliability of the hinge mechanism in the above two states.

[0024] In addition, the base can further be provided with a third arc-shaped groove, and the cover plate further comprises a third protrusion arranged towards the third arc-shaped groove, so that the gap between the surface of the third protrusion and the groove surface of the third arc-shaped groove is used as a second track groove, and the second connecting piece comprises a third arc-shaped surface and a fourth arc-shaped surface, and in the unfolded state and the closed state of the electronic device, the third arc-shaped surface abuts against the surface of the third protrusion, and the fourth arc-shaped surface abuts against the groove surface of the third arc-shaped groove. Thus, the surface of the third protrusion and the groove surface of the third arc-shaped groove limit the second connecting piece in the second track groove, so that the position of the second connecting piece is relatively stable in the unfolded state and the closed state of the hinge mechanism, and no virtual position shaking occurs, thereby improving the reliability of the hinge mechanism in the above two states.

[0025] In a possible implementation of the present application, during the process of the electronic device from the unfolded state to the closed state, the first arc surface abuts against the surface of the first protrusion, and a gap exists between the second arc surface and the groove surface of the first arc groove. During the process of the electronic device from the closed state to the unfolded state, the second arc surface abuts against the groove surface of the first arc groove, and a gap exists between the first arc surface and the surface of the first protrusion. Thus, the movement track of the first connecting member in the first track groove during the process of the electronic device from the unfolded state to the closed state is different from the movement track of the first connecting member in the first track groove during the process of the electronic device from the closed state to the unfolded state, which is beneficial to improving the flexibility of the design of the rotating shaft mechanism.

[0026] In addition, during the process of the electronic device from the unfolded state to the closed state, the third arc surface abuts against the surface of the third protrusion, and a gap exists between the fourth arc surface and the groove surface of the third arc groove. During the process of the electronic device from the closed state to the unfolded state, the fourth arc surface abuts against the groove surface of the third arc groove, and a gap exists between the third arc surface and the surface of the third protrusion. Thus, the movement track of the second connecting member in the second track groove during the process of the electronic device from the unfolded state to the closed state is different from the movement track of the second connecting member in the second track groove during the process of the electronic device from the closed state to the unfolded state, which is beneficial to improving the flexibility of the design of the rotating shaft mechanism.

[0027] In the present application, the movement track of the first connecting member in the first track groove during the process of the electronic device from the unfolded state to the closed state can be the same as the movement track of the first connecting member in the first track groove during the process of the electronic device from the closed state to the unfolded state. Specifically, the distances between the surface of the first protrusion and the groove surface of the first arc groove are equal, and at this time, the first track groove is an equal-width groove. During the process of the electronic device from the unfolded state to the closed state and from the closed state to the unfolded state, the first arc surface abuts against the surface of the first protrusion, and the second arc surface abuts against the groove surface of the first arc groove, which is beneficial to improving the stability of the movement of the first connecting member in the first track groove. Similarly, the distances between the surface of the third protrusion and the groove surface of the third arc groove can also be equal, so that the second track groove is an equal-width groove. In addition, during the process of the electronic device from the unfolded state to the closed state and from the closed state to the unfolded state, the third arc surface abuts against the surface of the third protrusion, and the fourth arc surface abuts against the groove surface of the third arc groove, so that the movement track of the second connecting member in the second track groove during the process of the electronic device from the unfolded state to the closed state is the same as the movement track of the second connecting member in the second track groove during the process of the electronic device from the closed state to the unfolded state, thereby improving the stability of the movement of the second connecting member in the second track groove.

[0028] In a possible implementation of the present application, the first arc surface of the first connecting piece can be a circular arc surface, and the second arc surface can also be a circular arc surface, at this time, the sum of the radius of the first arc surface and the radius of the second arc surface can be equal to the distance between the surface of the first protrusion and the groove surface of the first arc-shaped groove, so as to improve the smoothness of the movement of the first connecting piece in the first track groove.

[0029] Similarly, the third arc surface of the second connecting piece can be a circular arc surface, and the fourth arc surface can also be a circular arc surface, at this time, the sum of the radius of the third arc surface and the radius of the fourth arc surface can be equal to the distance between the surface of the third protrusion and the groove surface of the third arc-shaped groove, so as to improve the smoothness of the movement of the second connecting piece in the second track groove.

[0030] In a third aspect, the present application further provides an electronic device, which can include a rotating shaft mechanism, a first shell, a second shell and a support assembly. The rotating shaft mechanism includes a main shaft, a first shell fixing frame and a second shell fixing frame, the first shell fixing frame and the second shell fixing frame are respectively arranged on both sides of the main shaft, and the first shell fixing frame and the second shell fixing frame can be respectively rotated relative to the main shaft, the first shell fixing frame is fixedly connected with the first shell, and the second shell fixing frame is fixedly connected with the second shell. The support assembly can include a first support part, a second support part and a third support part, the first support part can be arranged at the end of the first shell along the axial direction of the rotating shaft mechanism, and the first support part is located on the side of the first shell close to the main shaft, the first support part is provided with a first protrusion and a first groove; the second support part can be arranged at the end of the second shell along the axial direction of the rotating shaft mechanism, and the second support part is located on the side of the second shell close to the main shaft, the second support part is provided with a second protrusion and a second groove; the third support part can be arranged at the end of the main shaft along the axial direction of the rotating shaft mechanism, the side of the third support part close to the first shell can be provided with a third protrusion and a third groove, and the side close to the second shell can be provided with a fourth protrusion and a fourth groove. When the rotating shaft mechanism is in an unfolded state, the third protrusion can be limited in the first groove, and the fourth protrusion can be limited in the second groove, when the rotating shaft mechanism is in a closed state, the first protrusion can be limited in the third groove, and the second protrusion can be limited in the fourth groove; or, when the rotating shaft mechanism is in an unfolded state, the first protrusion can be limited in the third groove, and the second protrusion can be limited in the fourth groove, when the rotating shaft mechanism is in a closed state, the third protrusion can be limited in the first groove, and the fourth protrusion can be limited in the second groove.

[0031] In the present application, when the electronic device is in the unfolded state, the first support portion, the second support portion and the third support portion can be positioned at least in the lateral direction by the cooperation of the third protrusion and the first groove, and the cooperation of the fourth protrusion and the second groove, or by the cooperation of the first protrusion and the third groove, and the cooperation of the second protrusion and the fourth groove, thereby reducing the risk of lateral displacement of the first support portion and the second support portion, and further reducing the risk of misalignment of the first shell, the second shell and the base of the electronic device in the unfolded state. Similarly, when the electronic device is in the closed state, the first support portion, the second support portion and the third support portion can be positioned at least in the lateral direction by the cooperation of the first protrusion and the third groove, and the cooperation of the second protrusion and the fourth groove, or by the cooperation of the first protrusion and the third groove, and the cooperation of the second protrusion and the fourth groove, thereby reducing the risk of lateral displacement of the first support portion and the second support portion, and further reducing the risk of misalignment of the first shell, the second shell and the base of the electronic device in the closed state.

[0032] It should be understood that the mating surface between the groove and the protrusion in the present application is not a plane. Taking the cooperation of the third protrusion and the first groove as an example, it can be concluded that the first groove surrounds or partially surrounds the third protrusion, and the contact surface of the first groove and the third protrusion is a curved surface composed of multiple planes facing in different directions. Correspondingly, the contact surface of the third protrusion and the first groove also includes multiple planes facing in different directions, and each plane of the third protrusion and each plane of the first groove respectively abuts, forming multiple direction limitations including the lateral direction for the first support portion, thereby effectively limiting the degrees of freedom of the first support portion in multiple directions, i.e. limiting the degrees of freedom of the first shell in multiple directions. The electronic device in the prior art does not have a related support structure, and when the electronic device falls or is impacted, the shell is easily displaced relative to the main shaft, thereby causing misalignment. Compared with the prior art, the electronic device provided by the embodiments of the present application utilizes the cooperation of the protrusion and the groove, so that the electronic device can effectively reduce the risk of misalignment of the shell and the main shaft when the electronic device falls or is impacted, regardless of whether the electronic device is in the unfolded state or the closed state, thereby improving the structural stability of the electronic device. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 A structural schematic diagram of the electronic device provided by the embodiments of the present application in the closed state;

[0034] Figure 2a A structural schematic diagram of the electronic device provided by the embodiments of the present application in the unfolded state;

[0035] Figure 2b Another structural schematic diagram of the electronic device provided by the embodiments of the present application in the unfolded state;

[0036] Figure 3 Figure 1 is a schematic diagram of a partial structure of a rotation shaft mechanism of an electronic device according to an embodiment of the present application; Figure 2b Figure 2 is a schematic diagram of a partial structure of a rotation shaft mechanism of an electronic device according to an embodiment of the present application;

[0037] Figure 4 Figure 3 is an exploded view of the structure shown in Figure 2; Figure 3 Figure 4 is a schematic diagram of a partial structure of a rotation shaft mechanism of an electronic device according to an embodiment of the present application;

[0038] Figure 5 Figure 5 is a cross-sectional view of the rotation shaft mechanism provided by an embodiment of the present application at a first connecting piece when the electronic device is in an unfolded state;

[0039] Figure 6 Figure 6 is a schematic diagram of a structure of a main shaft provided by an embodiment of the present application;

[0040] Figure 7 Figure 7 is a schematic diagram of a structure of a base of the main shaft shown in Figure 6; Figure 6

[0041] Figure 8 Figure 8 is a schematic diagram of a structure of a cover plate of the main shaft shown in Figure 6; Figure 6

[0042] Figure 9 is a cross-sectional view of the rotation shaft mechanism provided by an embodiment of the present application at a first connecting piece when the electronic device is in a folded state; Figure 9

[0043] Figure 10 is a schematic diagram of a structure of a first connecting piece provided by an embodiment of the present application; Figure 10

[0044] Figure 11 is a schematic diagram of an assembly structure of the first connecting piece and the main shaft provided by an embodiment of the present application; Figure 11

[0045] Figure 12 is an A-A cross-sectional view of the structure shown in Figure 11; Figure 12 Figure 3 Figure 13 is a cross-sectional view of the rotation shaft mechanism provided by an embodiment of the present application at a first swing arm when the electronic device is in a folded state;

[0046] Figure 13 Figure 14 is a schematic diagram of a structure of a first rotation assembly provided by an embodiment of the present application;

[0047] Figure 14 Figure 15 is a schematic diagram of a structure of a first swing arm provided by an embodiment of the present application;

[0048] Figure 15 Figure 16 is a schematic diagram of a principle of a movement mechanism of the rotation shaft mechanism provided by an embodiment of the present application;

[0049] Figure 16 Figure 17 is a schematic diagram of a partial structure of a rotation shaft mechanism of an electronic device according to an embodiment of the present application;

[0050] Figure 17 Figure 18 is a schematic diagram of a partial structure of a rotation shaft mechanism of an electronic device according to an embodiment of the present application;​​

[0051] Figure 18 A structural schematic view of the first support part and the second support part provided for an embodiment of the present application;

[0052] Figure 19 A structural schematic view of the third support part provided for an embodiment of the present application;

[0053] Figure 20 A structural schematic view of the support assembly in an unfolded state of the hinge mechanism provided for an embodiment of the present application;

[0054] Figure 21 A structural schematic view of the support assembly in a folded state of the hinge mechanism provided for an embodiment of the present application;

[0055] Figure 22 A structural schematic view of another electronic device provided for an embodiment of the present application.

[0056] Reference signs:

[0057] 1 - hinge mechanism; 1a - support surface; 1b - second surface of the hinge mechanism; 101 - rotating module; 1011 - first rotating assembly; 10111 - first swing arm; 101111 - first arc-shaped rotating block; 1011111 - first recessed part; 1011112 - first mounting slot; 10111121 - first circular arc surface; 10112 - first support arm; 10113 - first connecting piece; 101131 - first hinge shaft; 1011311 - second circular arc surface; 1011312 - fourth circular arc surface; 101132 - second hinge shaft; 101133 - first arc-shaped surface; 101134 - second arc-shaped surface;

[0058] 1012 - second rotating assembly; 10121 - second swing arm; 101211 - second arc-shaped rotating block; 1012111 - second recessed part; 1012112 - second mounting slot; 10121121 - fifth circular arc surface; 10122 - second support arm; 10123 - second connecting piece; 101231 - third hinge shaft; 1012311 - sixth circular arc surface; 1012312 - eighth circular arc surface; 101232 - fourth hinge shaft; 101233 - third arc-shaped surface; 101234 - fourth arc-shaped surface;

[0059] 1013 - first housing fixing frame; 10131 - first sliding groove; 10132 - first mounting part;

[0060] 1014 - second housing fixing frame; 10141 - second sliding groove; 10142 - second mounting part;

[0061] 102 - main shaft; 1021 - base; 10211 - first arc-shaped slot; 102111 - slot surface of the first arc-shaped slot;

[0062] 10212 - second arc-shaped groove; 102121 - third circular arc surface; 10213 - third arc-shaped groove; 102131 - groove surface of the third arc-shaped groove; 10214 - fourth arc-shaped groove; 102141 - seventh circular arc surface;

[0063] 1022 - cover plate; 10221 - first protrusion; 102211 - surface of the first protrusion; 10222 - second protrusion;

[0064] 102221 - surface of the second protrusion; 10223 - first insertion part; 10224 - third protrusion;

[0065] 102241 - surface of the third protrusion; 10225 - fourth protrusion; 102251 - surface of the fourth protrusion;

[0066] 1023 - first track groove; 1024 - second track groove;

[0067] 103 - support assembly; 1031 - first support part;

[0068] 10311 - first protrusion; 103111 - first convex surface; 1031111 - first inclined surface of the first convex surface;

[0069] 10312 - first recess; 103121 - first concave surface; 1031211 - first inclined surface of the first concave surface;

[0070] 1032 - second support part;

[0071] 10321 - second protrusion; 103211 - second convex surface; 1032111 - second inclined surface of the second convex surface;

[0072] 10322 - second recess; 103221 - second concave surface; 1032211 - second inclined surface of the second concave surface;

[0073] 1033 - third support part;

[0074] 10331 - third protrusion; 103311 - third convex surface; 1033111 - third inclined surface of the third convex surface;

[0075] 10332 - third recess; 103321 - third concave surface; 1033211 - third inclined surface of the third concave surface;

[0076] 10333 - fourth protrusion; 103331 - fourth convex surface; 1033311 - fourth inclined surface of the fourth convex surface;

[0077] 10334 - fourth groove; 103341 - fourth concave surface; 1033411 - fourth inclined surface of the fourth concave surface;

[0078] 10335 - main body; 10336 - baffle; 10337 - first connecting curved surface; 10338 - second connecting curved surface;

[0079] 2 - first housing; 2a - first support surface of the first housing; 2b - second surface of the first housing;

[0080] 3 - second housing; 3a - second support surface of the second housing; 3b - second surface of the second housing. DETAILED DESCRIPTION

[0081] In order to make the purposes, technical solutions and advantages of the present application clearer, the following will further describe the embodiments of the present application with reference to the drawings. However, the example embodiments can be implemented in various forms, and should not be understood as being limited to the embodiments set forth herein. The same reference signs in the drawings represent the same or similar structures, and thus repeated description thereof will be omitted. The expressions of position and direction described in the embodiments of the present application are described with reference to the drawings, but can be changed as needed, and the changes made are included in the scope of protection of the present application. The drawings of the embodiments of the present application are only used to illustrate the relative positional relationship and do not represent the true proportions.

[0082] It should be noted that specific details are set forth in the following description in order to facilitate understanding of the present application. However, the embodiments of the present application can be implemented in various other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotations of the embodiments of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0083] Reference Figure 1 As shown, Figure 1 A structural schematic diagram of an electronic device provided by the embodiments of the present application is shown. The electronic device can be a mobile phone, a personal digital assistant (PDA), a notebook computer, a tablet computer, or other devices with foldable functions. Figure 1 The electronic device of the embodiments shown is described by taking a notebook computer as an example. The electronic device can include a rotating shaft mechanism 1, a flexible display screen (not shown in the figure), and two housings, which are named as a first housing 2 and a second housing 3 for ease of description. The first housing 2 and the second housing 3 are located on the two sides of the rotating shaft mechanism 1 and can rotate around the rotating shaft mechanism 1. The electronic device can be closed and unfolded according to different use scenarios when in use.

[0084] In this application, the electronic device can be an outward-folding electronic device. Specifically, in the outward-folding electronic device, the flexible display screen remains on the outside of the electronic device throughout the process of changing from an unfolded state to a closed state. Figure 1 This demonstrates the relative positional relationship between the hinge mechanism 1 and the two housings when the electronic device is in the closed state. In this position, the first surface of the hinge mechanism 1, the first surface of the first housing, and the first surface of the second housing together serve as the supporting surface for the flexible display screen. Figure 1 The flexible display screen is omitted in this document. The first surface of the pivot mechanism 1 refers to the surface of the pivot mechanism 1 facing the flexible display screen, the first surface of the first housing 2 refers to the surface of the first housing 2 facing the flexible display screen, and the first surface of the second housing 3 refers to the surface of the second housing 3 facing the flexible display screen. For ease of description, in this application, the first surface of the pivot mechanism 1 can be defined as the support surface 1a of the pivot mechanism 1, the first surface of the first housing 2 can be defined as the first support surface 2a, and the first surface of the second housing 3 can be defined as the second support surface 3a.

[0085] For reference Figure 2a , Figure 2a A schematic diagram of an electronic device in its unfolded state is shown, and Figure 2a The structure of the first support surface 2a of the first housing 2 and the second support surface 3a of the second housing 3 is shown. In this unfolded state, the support surface 1a of the rotating shaft mechanism 1, the first support surface 2a of the first housing 2, and the second support surface 3a of the second housing 3 can be connected to form a flat support surface.

[0086] Based on this, the flexible display screen can continuously cover the support surface 1a of the pivot mechanism 1, the first support surface 2a of the first housing 2, and the second support surface 3a of the second housing 3. The pivot mechanism 1 and the foldable portion of the flexible display screen are arranged opposite each other, and the flexible display screen can be fixedly connected to the first support surface 2a of the first housing 2 and the second support surface 3a of the second housing 3. The connection method can be, but is not limited to, adhesive bonding. Thus, when the electronic device is in a position such as... Figure 2a When in the unfolded state shown, the pivot mechanism 1, the first housing 2, and the second housing 3 can provide flat support for the flexible display screen.

[0087] For reference Figure 2b , Figure 2b This is another structural diagram of the electronic device provided in the embodiments of this application when it is in an unfolded state. Figure 2bThe structure of the second surface 1b of the rotating shaft mechanism 1, the second surface 2b of the first shell 2 and the second surface 3b of the second shell 3 is shown in FIG. 2. Among them, the second surface 1b of the rotating shaft mechanism 1 refers to the surface of the rotating shaft mechanism 1 away from the flexible display, the second surface 2b of the first shell 2 refers to the surface of the first shell 2 away from the flexible display, and the second surface 3b of the second shell 3 refers to the surface of the second shell 3 away from the flexible display. Therefore, the supporting surface 1a and the second surface 1b of the rotating shaft mechanism 1 are arranged oppositely, the supporting surface 2a and the second surface 2b of the first shell 2 are arranged oppositely, and the supporting surface 3a and the second surface 3b of the second shell 3 are arranged oppositely.

[0088] In the embodiment of the present application, the first shell 2 can include a first middle frame and a first outer shell, and the second shell 3 can include a second middle frame and a second outer shell. The first outer shell can cover the surface of the first middle frame away from the flexible display, and the second outer shell can cover the surface of the second middle frame away from the flexible display. At this time, the first outer shell and the first middle frame, and the second outer shell and the second middle frame can form accommodation spaces, respectively, which can be used to place the battery, the main board, the receiver, the microphone and other devices of the electronic device. Figure 2b In FIG. 2, only the first middle frame of the first shell 2 and the second middle frame of the second shell 3 are shown, and the first outer shell and the second outer shell are omitted. Therefore, Figure 2b In FIG. 2, the second surface 2b of the first shell 2 is the surface of the first middle frame away from the flexible display, rather than the outer surface of the first shell 2 away from the flexible display. Similarly, Figure 2b In FIG. 2, the second surface 3b of the second shell 3 is the surface of the second middle frame away from the flexible display, rather than the outer surface of the second shell 3 away from the flexible display.

[0089] In the embodiment of the present application, the second surface 1b of the rotating shaft mechanism 1, the outer surface of the first shell away from the flexible display, and the outer surface of the second shell away from the flexible display can collectively serve as the appearance surface of the electronic device. It can be understood that for the outer folding electronic device, the appearance surface is exposed to the outside of the electronic device when the electronic device is in the unfolded state, and the appearance surface is located on the inside of the electronic device when the electronic device is in the closed state. In the present application, the first shell 2 and the second shell 3 are Figure 2a or Figure 2b shown in the unfolded state to Figure 1 shown in the closed state, or Figure 1 shown in the closed state to Figure 2a or Figure 2b shown in the unfolded state, the flexible display can be folded or flattened with the first shell 2 and the second shell 3. In addition, it can be understood that the electronic device is Figure 2a or Figure 2b shown in the unfolded state to Figure 1 shown in the closed state, or Figure 1the closing state shown in Figure 2a or Figure 2b the process of the unfolded state shown, i.e. the process of rotating the first shell 2 and the second shell 3 around the rotation shaft mechanism 1. The rotation shaft mechanism 1 as a key functional component in the foldable electronic device can be arranged corresponding to the foldable part of the flexible display screen, so it plays an important role in supporting the foldable part of the flexible display screen in the unfolded state shown in Figure 2a or Figure 2b the closing state shown in Figure 1 .

[0090] Referring to Figure 3 , Figure 3 is a partial structural schematic diagram of the rotation shaft mechanism 1 of the electronic device shown in Figure 2b . In the present application, the rotation shaft mechanism 1 can include a rotation module 101, and the number of the rotation module 101 in the rotation shaft mechanism 1 is not limited in the present application. The rotation shaft mechanism 1 can include only one rotation module 101, or can include multiple rotation modules 101. When the rotation shaft mechanism 1 includes multiple rotation modules 101, the multiple rotation modules 101 can be arranged at intervals along the axial direction of the rotation shaft mechanism 1. In the present application, the axial direction of the rotation shaft mechanism 1 is the extension direction of the axis of rotation of the first shell 2 and the second shell 3 around the rotation shaft mechanism 1 shown in Figure 2b . It can be understood that the first shell 2 and the second shell 3 are rotatably connected by multiple rotation modules 101, which can effectively improve the stability of the rotation of the first shell 2 and the second shell 3 of the electronic device relative to the rotation shaft mechanism 1.

[0091] Referring to Figure 4 , Figure 4 is an exploded view of the rotation shaft mechanism 1 shown in Figure 3 . The rotation module 101 can include a first rotation assembly 1011 and a second rotation assembly 1012. In addition, as shown in Figure 4 , the rotation shaft mechanism 1 can also include a main shaft 102, which can serve as a bearing component for the first rotation assembly 1011 and the second rotation assembly 1012, and the first rotation assembly 1011 and the second rotation assembly 1012 can rotate relative to the main shaft, respectively.

[0092] It is worth mentioning that in the embodiments of the present application, when the rotation module 101 is multiple, the first rotation assembly 1011 and the second rotation assembly 1012 of the multiple rotation modules 101 can all use the same main shaft 102 as a bearing component to improve the degree of integration of the rotation shaft mechanism 1. In some other possible embodiments of the present application, the rotation shaft mechanism 1 can correspondingly arrange one main shaft 102 for each rotation module 101, so that the first rotation assembly 1011 and the second rotation assembly 1012 of each rotation module 101 use the corresponding main shaft 102 as a bearing component.

[0093] The rotating shaft mechanism can further include a first housing fixing frame 1013 and a second housing fixing frame 1014, which are arranged on opposite sides of the main shaft 102. The first housing fixing frame 1013 can be fixedly connected with the first housing 2, for example, fixedly connected with the first middle frame of the first housing 2, and the second housing fixing frame 1014 can be fixedly connected with the second housing 3, for example, fixedly connected with the second middle frame of the second housing 3. In addition, the first housing fixing frame 1013 can be in transmission connection with the first rotating assembly 1011, so that the first housing fixing frame 1013 and the first housing 2 can also rotate relative to the main shaft 102, and the second housing 3 can also be in transmission connection with the second rotating assembly 1012, so that the second housing fixing frame 1014 and the second housing 3 can also rotate relative to the main shaft 102. When the electronic device is unfolded or folded, the first housing fixing frame 1013 rotates synchronously with the first housing 2, and the second housing fixing frame 1014 rotates synchronously with the second housing 3, and then the first rotating assembly 1011 is driven by the first housing fixing frame 1013 to rotate around the main shaft, and the second rotating assembly 1012 is driven by the second housing fixing frame 1014 to rotate around the main shaft. In this way, by reasonably designing the structures of the first rotating assembly 1011 and the second rotating assembly 1012, the movement tracks of the first housing 2 and the second housing 3 can be limited, so that the first housing 2 and the second housing 3 can realize the unfolding and folding of the electronic device in a set rotating manner.

[0094] In addition, in order to reduce the risk of dislocation or damage of the structural members (including rotating assemblies, housing fixing frames, or housings) of the electronic device in the scenario of falling or impact of the electronic device, the electronic device of the embodiment of the present application further provides a support assembly 103 capable of providing a limiting support function for the above-mentioned structural members, so that the electronic device can be effectively supported in the unfolded and folded states, and the structural reliability of the electronic device is improved.

[0095] In order to more clearly and completely present the support assembly 103 in the embodiment of the present application, before introducing the specific structure of the support assembly 103, please refer to the implementation mode of a specific rotating shaft mechanism shown in Figures 4 to 16 The rotating shaft mechanism 1 can not only realize the support and limiting functions of the structural members such as rotating assemblies, housing fixing frames, or housings, but also realize the flat support of the flexible display screen. In the intermediate state and the unfolding or folding process of the electronic device, the bending part of the flexible display screen can be uniformly stressed, and in the folded state of the electronic device, the flexible display screen can be provided with a containing space, and the containing space can ensure that the bending part of the flexible display screen has a certain degree of curvature, avoiding being squeezed. Further, the rotating shaft mechanism 1 can also keep the length of the flexible display screen unchanged in the entire unfolding or folding process of the electronic device, thereby ensuring the reliability of the flexible display screen.

[0096] It should be understood that the connection mode of the rotating assembly and the shell fixing frame can be various, for example, the rotating assembly and the main shaft can be rotationally connected, the rotating assembly and the shell fixing frame can be fixedly connected, rotationally connected or slidably connected, etc. The following embodiments are only one possible implementation of the rotating assembly for realizing the folding and unfolding functions of the electronic device, and the rotating assembly can also be implemented in other modes as long as the shell support can rotate relative to the main shaft to realize the folding and unfolding functions of the rotating shaft mechanism, which is within the scope covered by the embodiments of the present application. Correspondingly, the support assembly 103 involved in the embodiments of the present application can be applicable to the electronic device with foldable function.

[0097] Next, the exemplary design of the rotating shaft mechanism is specifically described.

[0098] The above description can be continued with reference to Figure 4 In the embodiments of the present application, the first rotating assembly 1011 can include a first swing arm 10111, a first support arm 10112 and a first connecting piece 10113. The first connecting piece 10113 is located between the first swing arm 10111 and the first support arm 10112, the first connecting piece 10113 is rotationally connected with the first swing arm 10111, and the first connecting piece 10113 is rotationally connected with the first support arm 10112, so that the first swing arm 10111 and the first support arm 10112 are mutually pulled by the first connecting piece 10113. Based on this, it can be understood that the movement track of the first connecting piece 10113 plays a key role in the movement track of the first rotating assembly 1011.

[0099] In the present application, the first connecting piece 10113 can move relative to the main shaft 102. In specific implementation, reference can be made to Figure 5 , Figure 5 A sectional view of the first connecting piece 10113 of the rotating shaft mechanism 1 provided in the embodiments of the present application when the electronic device is in an unfolded state. The main shaft 102 can be provided with a first track groove 1023, and the first connecting piece 10113 can move along the first track groove 1023, so as to limit the movement track of the first connecting piece 10113.

[0100] Reference can be made to Figure 6 , Figure 6 A structural schematic view of the main shaft 102 provided in the embodiments of the present application. The main shaft 102 can include a base 1021 and a cover plate 1022, and the cover plate 1022 is covered on the base 1021, so that the outer surface of the cover plate 1022 can be used as the appearance surface of the rotating shaft mechanism. Reference can be made to Figure 7 , Figure 7 The above description can be continued with reference to Figure 6This is a schematic diagram of a structure of the base 1021 of the spindle 102. The base 1021 may be provided with a first arc-shaped groove 10211, which is also shown in the diagram. Figure 5 and Figure 7 The first connector 10113 is accommodated in the first arc-shaped groove 10211, and the first connector 10113 is slidable along the groove surface 102111 of the first arc-shaped groove. Additionally, refer to... Figure 8 , Figure 8 for Figure 6 A schematic diagram of a structure of the cover plate 1022 of the main shaft 102 is shown, and Figure 8 The structure of the cover plate 1022 facing the base 1021 is used to illustrate this. The cover plate 1022 includes a first protrusion 10221, such as... Figure 5 As shown, the first protrusion 10221 can be disposed toward the first arc-shaped groove 10211, and there is a gap between the surface 102211 of the first protrusion and the groove surface 102111 of the first arc-shaped groove, which serves as the first trajectory groove 1023.

[0101] Figure 9 The cross-sectional view of the rotating shaft mechanism 1 provided in this application embodiment at the first connecting member 10113 when the electronic device is in the closed state can also be referred to. Figure 5 and Figure 9 During the process of the electronic device moving from the unfolded state to the closed state, the first connector 10113 can move toward the first swing arm 10111 within the first track groove 1023, and during the process of moving from the closed state to the unfolded state, the first connector 10113 can move toward the first support arm 10112 within the first track groove 1023, thereby enabling the first connector 10113 to move relative to the main shaft 102 according to a set trajectory.

[0102] Refer to together Figure 5 and Figure 9 It can be seen that during the process of the electronic device moving from an unfolded state to a closed state, or from a closed state to an unfolded state, the first swing arm 10111 and the first support arm 10112 can rotate around the main shaft 102. Furthermore, because the first swing arm 10111 and the first support arm 10112 move in opposite directions via the first connector 10113, the first connector 10113 can also rotate relative to the surface 102211 of the first protrusion and the groove surface 102111 of the first arcuate groove during its movement within the first track groove 1023, thereby improving the smoothness of the movement of the first rotating assembly 1011.

[0103] Reference Figure 10 , Figure 10A structural schematic diagram of the first connecting piece 10113 provided in the embodiments of the present application is shown in the figure. In the present application, the first connecting piece 10113 can include a first arc surface 101133 and a second arc surface 101134. In order to realize the rotation of the first connecting piece 10113 relative to the surface 102211 of the first protruding part and the groove surface 102111 of the first arc-shaped groove, the first arc surface 101133 and the second arc surface 101134 can be circular arc surfaces, and the center of the first arc surface 101133 coincides with the center of the second arc surface 101134. The radii of the first arc surface 101133 and the second arc surface 101134 can be equal or not equal, which is not limited in the present application. In addition, considering the design tolerance, the first arc surface 101133 and the second arc surface 101134 can also be elliptical arc surfaces or other possible arc surfaces, as long as the rotation of the first connecting piece 10113 relative to the surface 102211 of the first protruding part and the groove surface 102111 of the first arc-shaped groove can be realized.

[0104] Continuing to refer to Figure 5 and Figure 9 , when the electronic device is in the unfolded state as shown in Figure 5 and the closed state as shown in Figure 9 , the first arc surface 101133 of the first connecting piece 10113 can abut against the surface 102211 of the first protruding part, and the second arc surface 101134 abuts against the groove surface 102111 of the first arc-shaped groove, so that the surface 102211 of the first protruding part and the groove surface 102111 of the first arc-shaped groove limit the first connecting piece 10113 in the first track groove 1023, so that the position of the first connecting piece 10113 is relatively stable when the hinge mechanism 1 is in the unfolded state and the closed state, and no virtual position shaking occurs, so as to improve the reliability of the hinge mechanism 1 in the above two states.

[0105] In the present application, when the electronic device is in the unfolded state as shown in Figure 5 , the distance between the point where the surface 102211 of the first protruding part abuts against the first arc surface 101133 and the point where the groove surface 102111 of the first arc-shaped groove abuts against the second arc surface 101134 is d1. When the electronic device is in the closed state as shown in Figure 9The distance between the point where the surface 102211 of the first protruding part abuts against the first arc-shaped surface 101133 and the point where the groove surface 102111 of the first arc-shaped groove abuts against the second arc-shaped surface 101134 is denoted as d2 in the closed state. Since the first arc-shaped surface 101133 of the first connecting part 10113 can abut against the surface 102211 of the first protruding part and the second arc-shaped surface 101134 can abut against the groove surface 102111 of the first arc-shaped groove when the electronic device is in the unfolded state and the closed state, it can be concluded that d1 = d2 when the first arc-shaped surface 101133 and the second arc-shaped surface 101134 are both circular arc surfaces.

[0106] In the present application, the specific configuration of the surface 102211 of the first protruding part and the groove surface 102111 of the first arc-shaped groove is not limited, for example, the surface 102211 of the first protruding part can be a circular arc surface, and the groove surface 102111 of the first arc-shaped groove can also be a circular arc surface, and the center of the circular arc surface of the surface 102211 of the first protruding part can coincide with the center of the circular arc surface of the groove surface 102111 of the first arc-shaped groove. In some other possible embodiments of the present application, the surface 102211 of the first protruding part and the groove surface 102111 of the first arc-shaped groove can also be both flat surfaces, so that the first track groove 1023 is a straight groove; or the surface 102211 of the first protruding part and the groove surface 102111 of the first arc-shaped groove can also be other curved surfaces, so that the first track groove 1023 is a curved groove with any shape, which should all be understood as falling within the protection scope of the present application.

[0107] Continuing to refer to Figure 5 In the present application, the distance between the surface 102211 of the first protruding part and the groove surface 102111 of the first arc-shaped groove can be equal, so that the first track groove 1023 is an equal-width groove. At this time, during the process of the electronic device changing from the unfolded state to the closed state and from the closed state to the unfolded state, the surface 102211 of the first protruding part and the first arc-shaped surface 101133 and the groove surface 102111 of the first arc-shaped groove and the second arc-shaped surface 101134 are always in abutting state, so that the movement track of the first connecting part 10113 can be the same during the process of the electronic device changing from the unfolded state to the closed state and from the closed state to the unfolded state, which can be beneficial to improving the stability of the movement of the first connecting part 10113, thereby improving the movement stability of the first rotating assembly 1011.

[0108] Referring to Figure 11 , Figure 11An assembly structure diagram of the first connecting piece 10113 and the main shaft 102 is provided in the embodiments of the present application. In the present application, when the first track groove 1023 is an equal-width groove, and the first arc surface 101133 and the second arc surface 101134 are circular arc surfaces, the sum of the radius R1 of the first arc surface 101133 and the radius R2 of the second arc surface 101134 is equal to the interval D between the surface 102211 of the first protruding part and the groove surface 102111 of the first arc groove. In addition, in consideration of the smoothness of the movement of the first connecting piece 10113 in the first track groove 1023, a certain design gap can be reserved between the first arc surface 101133 and the surface 102211 of the first protruding part, and / or between the second arc surface 101134 and the groove surface 102111 of the first arc groove.

[0109] In some other possible embodiments of the present application, the movement track of the first connecting piece 10113 in the process of the electronic device changing from the unfolded state to the closed state can also be made different from the movement track of the first connecting piece 10113 in the process of the electronic device changing from the closed state to the unfolded state. In specific implementation, in the process of the electronic device changing from the unfolded state to the closed state, the first arc surface 101133 abuts against the surface 102211 of the first protruding part, and there is a gap between the second arc surface 101134 and the groove surface 102111 of the first arc groove. In the process of the electronic device changing from the unfolded state to the closed state, the second arc surface 101134 abuts against the groove surface 102111 of the first arc groove, and there is a gap between the first arc surface 101133 and the surface 102211 of the first protruding part. In this embodiment, the gaps between the surface 102211 of the first protruding part and the groove surface 102111 of the first arc groove at different positions can not be equal, and the first track groove 1023 can be a non-equal-width groove.

[0110] As can be known from the above introduction, in the present application, the first swing arm 10111 can be rotationally connected with the main shaft 102, wherein the first swing arm 10111 and the main shaft 102 can be rotationally connected through a virtual shaft, which can be beneficial to reduce the space occupied by the first swing arm 10111 on the main shaft 102, thereby being beneficial to reduce the volume of the rotation module 101, so as to facilitate the miniaturization design of the rotation shaft mechanism 1. In addition, it can be understood that, for an outer folding electronic device, when the first swing arm 10111 is rotationally connected with the main shaft 102 through a virtual shaft, the axis of rotation of the first swing arm 10111 around the main shaft 102 is located on the side of the main shaft 102 away from the flexible display screen.

[0111] It is worth mentioning that, in the present application, the virtual shaft refers to the axis of a circular arc structure, and two rotationally connected components can rotate relative to the virtual shaft, and the position of the virtual shaft is fixed with the relative rotation of the two rotationally connected components. For example, as shown in FIG. 1A, the first swing arm 10111 and the main shaft 102 are rotationally connected through a virtual shaft, and the axis of the virtual shaft is located on the side of the main shaft 102 away from the flexible display screen. Figure 12 ​Figure 12 For Figure 3 A-A sectional view of the structure shown in FIG. 1. One end of the first swing arm 10111 facing the base 1021 can be provided with a first arc-shaped rotating block 101111. In addition, referring to Figure 7 , the base 1021 can be provided with a second arc-shaped groove 10212. Then the first arc-shaped rotating block 101111 can be accommodated in the second arc-shaped groove 10212, and the first arc-shaped rotating block 101111 can slide along the groove surface of the second arc-shaped groove 10212, so that the rotation of the first swing arm 10111 around the main shaft 102 is realized by the sliding of the first arc-shaped rotating block 101111 along the arc surface of the second arc-shaped groove 10212. In addition, in this application, the first arc-shaped rotating block 101111 can be, but is not limited to, a circular arc-shaped rotating block, and the second arc-shaped groove 10212 can be, but is not limited to, a circular arc-shaped groove. It can be understood that when the first arc-shaped rotating block 101111 is a circular arc-shaped rotating block, the surface thereof used to contact the groove surface of the second arc-shaped groove 10212 can be a circular arc surface, and the groove surface of the second arc-shaped groove 10212 is also a circular arc surface, and the centers of the two circular arc surfaces coincide.

[0112] Referring to Figure 8 and Figure 12 , the cover plate 1022 can include a second protruding portion 10222 disposed towards the second arc-shaped groove 10212, at least part of the first arc-shaped rotating block 101111 is located between the second protruding portion 10222 and the second arc-shaped groove 10212, and the first arc-shaped rotating block 101111 can be in contact with the surface 102221 of the second protruding portion, so that the first arc-shaped rotating block 101111 can be limited between the cover plate 1022 and the base 1021, which can effectively improve the stability of the rotation of the first arc-shaped rotating block 101111 relative to the base 1021.

[0113] It is worth mentioning that when the groove surface of the second arc-shaped groove 10212 is a circular arc surface, the part of the surface 102221 of the second protruding portion used to contact the first arc-shaped rotating block 101111 can also be a circular arc surface, and the centers of the two circular arc surfaces coincide. In addition, the surface of the first arc-shaped rotating block 101111 facing the second protruding portion 10222 can be a plane or a circular arc surface, as long as the first arc-shaped rotating block 101111 can rotate relative to the second protruding portion 10222.

[0114] Referring to Figure 13 , Figure 13A cross-sectional view of the first swing arm 10111 of the hinge mechanism 1 provided by the embodiments of the present application when the electronic device is in a closed state. In the present application, the first arc-shaped rotating block 101111 can further be provided with a first recessed portion 1011111, and the opening of the first recessed portion 1011111 faces the cover plate 1022. In addition, the end of the cover plate 1022 facing the first swing arm 10111 can be provided with a first plug-in portion 10223. Then in the closed state, the first plug-in portion 10223 can be inserted into the first recessed portion 1011111, and the surface of the first plug-in portion 10223 facing the second arc-shaped groove 10212 abuts at least part of the surface of the first recessed portion 1011111. In this way, the rotation position of the first arc-shaped rotating block 101111 can be limited, and the first arc-shaped rotating block 101111 can be prevented from being pulled out of the second arc-shaped groove 10212, thereby improving the reliability of the connection between the first swing arm 10111 and the base 1021, and improving the structural reliability of the entire hinge mechanism 1.

[0115] It is worth mentioning that in the present application, in addition to being rotatably connected to the main shaft 102 through a virtual shaft, the first swing arm 10111 can also be rotatably connected to the main shaft 102 through a solid shaft, which can make the connection between the first swing arm 10111 and the main shaft 102 more reliable. It can be understood that when the first swing arm 10111 is rotatably connected to the main shaft 102 through a solid shaft, the axis of rotation of the first swing arm 10111 around the main shaft 102 is also located on the side of the main shaft 102 away from the flexible display screen.

[0116] In the present application, when the first swing arm 10111 is rotatably connected to the first connecting piece 10113, the first connecting piece 10113 can further include a first rotating shaft 101131 and a second rotating shaft 101132, and the axis of the first rotating shaft 101131 is parallel to but not coincident with the axis of the second rotating shaft 101132. Figure 10 In addition, with reference to

[0117] , Figure 14 , Figure 14 A structural schematic view of the first rotating assembly 1011 provided by the embodiments of the present application. The first connecting piece 10113 is rotatably connected to the first swing arm 10111 through the first rotating shaft 101131, and the first connecting piece 10113 is rotatably connected to the first support arm 10112 through the second rotating shaft 101132. Thus, the first swing arm 10111 and the first support arm 10112 can be mutually pulled by the first connecting piece 10113.

[0118] With reference to Figure 15 , Figure 15This is a schematic diagram of a first swing arm 10111 provided in an embodiment of this application. The first arc-shaped rotating block 101111 of the first swing arm 10111 is provided with a first mounting groove 1011112. (See also...) Figure 12 and Figure 15 The opening of the first mounting groove 1011112 is set facing the second arc-shaped groove 10212, so the first rotating shaft 101131 can be installed in the first mounting groove 1011112. Part of the surface of the first rotating shaft 101131 can contact the groove surface of the first mounting groove 1011112, and part of the surface of the first rotating shaft 101131 can contact the groove surface of the second arc-shaped groove 10212, so as to limit the first rotating shaft 101131 to the first mounting groove 1011112.

[0119] You can continue to refer to Figure 12 and Figure 15 The groove surface of the first mounting groove 1011112 may include a first arc surface 10111121, and the surface of the first rotating shaft 101131 that contacts the groove surface of the first mounting groove 1011112 is a second arc surface 1011311, and the center of the first arc surface 10111121 coincides with the center of the second arc surface 1011311. Additionally, refer to... Figure 7 The groove surface of the second arc-shaped groove 10212 can be the third arc surface 102121. And as... Figure 12 As shown, the surface of the first rotating shaft 101131 that contacts the groove surface of the second arc-shaped groove 10212 can be the fourth arc surface 1011312, then the center of the third arc surface 102121 and the center of the fourth arc surface 1011312 coincide. Thus, it can be referred to together... Figure 12 and Figure 13 While the first rotating shaft 101131 slides along the groove surface of the second arc-shaped groove 10212 with the first arc-shaped rotating block 101111, the first rotating shaft 101131 can also rotate relative to the first arc-shaped rotating block 101111, thereby facilitating the movement of the first connecting member 10113 relative to the main shaft 102.

[0120] In this application, when the first connector 10113 is rotatably connected to the first support arm 10112, such as Figure 14 As shown, the second rotating shaft 101132 can be simultaneously inserted into the first connecting member 10113 and the first support arm 10112. This simplifies the connection between the first connecting member 10113 and the first support arm 10112, thus simplifying the structure of the first rotating assembly 1011 and consequently the rotating shaft mechanism 1. It is worth noting that when both the first arcuate surface 101133 and the second arcuate surface 101134 of the first connecting member 10113 are arcuate surfaces, the center of the first arcuate surface 101133, the center of the second arcuate surface 101134, and the axis of the second rotating shaft 101132 coincide.

[0121] It can be understood that, in the rotating shaft mechanism 1 provided by the embodiment of the present application, the first connecting member 10113 can include a plurality of first sub-connecting members connected in sequence. In addition, the plurality of first sub-connecting members can be located between the first swing arm 10111 and the first support arm 10112, and the first swing arm 10111 can be rotatably connected with the adjacent first sub-connecting member, and the first support arm 10112 can be rotatably connected with the adjacent first sub-connecting member. Wherein, the rotatable connection between the first swing arm 10111 and the adjacent first sub-connecting member, and the rotatable connection between the first support arm 10112 and the adjacent first sub-connecting member can be set according to the above description of the rotatable connection between the first swing arm 10111 and the first connecting member 10113 and the rotatable connection between the first support arm 10112 and the first connecting member 10113, which will not be repeated here. In the present application, by setting the first connecting member 10113 as a plurality of first sub-connecting members connected in sequence, the first swing arm 10111 and the first support arm 10112 are connected through a plurality of first sub-connecting members, which can effectively improve the uniformity of the speed of the first swing arm 10111 and the first support arm 10112 during rotation around the main shaft 102, so as to improve the smoothness of the mutual pulling movement of the first swing arm 10111 and the first support arm 10112.

[0122] Continuing to refer to Figure 4 Similarly to the structure of the first rotating assembly 1011, when the second rotating assembly 1012 is specifically set, the second rotating assembly 1012 is located between the first housing fixed frame 1013 and the second housing fixed frame 1014. In addition, the second rotating assembly 1012 can include a second swing arm 10121, a second support arm 10122 and a second connecting member 10123. Wherein, the second connecting member 10123 is located between the second swing arm 10121 and the second support arm 10122, the second connecting member 10123 is rotatably connected with the second swing arm 10121, and the second connecting member 10123 is rotatably connected with the second support arm 10122. In the present application, when the second connecting member 10123 is rotatably connected with the second swing arm 10121 and the first support arm 10112, it can be set according to the above description of the rotatable connection between the first connecting member 10113 and the second swing arm 10121 and the second support arm 10122. For example, it can be set according to the above description of the rotatable connection between the first connecting member 10113 and the second swing arm 10121 and the second support arm 10122. Figure 10 , Figure 10The second connecting piece 10123 can also be used to represent the structure of the second connecting piece provided by the embodiments of the present application. The second connecting piece 10123 can include a third rotating shaft 101231 and a fourth rotating shaft 101232, and the axis of the third rotating shaft 101231 is parallel to and does not coincide with the axis of the fourth rotating shaft 101232. The second connecting piece 10123 and the second swing arm 10121 can be rotatably connected through the third rotating shaft 101231, and the second connecting piece 10123 and the second supporting arm 10122 are rotatably connected through the fourth rotating shaft 101232, so that the second swing arm 10121 and the second supporting arm 10122 can be pulled by the second connecting piece 10123.

[0123] In addition, referring to Figure 6 , the main shaft 102 can be provided with a second track groove 1024, and the second connecting piece 10123 can move along the second track groove, so that the movement track of the second connecting piece 10123 can be limited. In a specific implementation, referring to Figure 7 , the base 1021 can be provided with a third arc-shaped groove 10213, and the second connecting piece 10123 is accommodated in the third arc-shaped groove 10213, and the second connecting piece 10123 can slide along the groove surface of the third arc-shaped groove 10213. In addition, referring to Figure 8 , the cover plate 1022 includes a third protruding portion 10224, which can be arranged towards Figure 7 the third arc-shaped groove 10213 of the base 1021, and there is a gap between the surface 102241 of the third protruding portion and the groove surface 102131 of the third arc-shaped groove, which serves as the second track groove 1024.

[0124] In the present application, as shown in Figure 10 , the second connecting piece 10123 can include a third arc-shaped surface 101233 and a fourth arc-shaped surface 101234. In the unfolded state and the closed state of the electronic device, the third arc-shaped surface 101233 of the second connecting piece 10123 can abut against the surface 102241 of the third protruding portion, and the fourth arc-shaped surface 101234 abuts against the groove surface 102131 of the third arc-shaped groove, so that the surface 102241 of the third protruding portion and the groove surface 102131 of the third arc-shaped groove limit the second connecting piece 10123 in the second track groove 1024, so that the position of the second connecting piece 10123 is relatively stable in the unfolded state and the closed state of the rotating shaft mechanism 1, and no virtual position shaking occurs, so as to improve the structural reliability of the rotating shaft mechanism 1 in the above two states.

[0125] In the embodiments of the present application, the third arc surface 101233 of the second connecting piece 10123 can be arranged by referring to the first arc surface 101133 of the first connecting piece 10113, and the fourth arc surface 101234 can be arranged by referring to the second arc surface 101134 of the first connecting piece 10113, which will not be repeated here. In addition, the second track groove 1024 can be arranged by referring to the first track groove 1023. Briefly, the distances between the surface 102241 of the third protruding part and the groove surface 102131 of the third arc groove are equal, so that the second track groove 1024 is a groove with equal width. At this time, in the process of the electronic device from the unfolded state to the closed state, and from the closed state to the unfolded state, the surface 102241 of the third protruding part and the third arc surface 101233, and the groove surface 102131 of the third arc groove and the fourth arc surface 101234 are always in abutting state. Therefore, in the process of the electronic device from the unfolded state to the closed state, and from the closed state to the unfolded state, the movement track of the second connecting piece 10123 in the second track groove 1024 is the same. Alternatively, in the process of the electronic device from the unfolded state to the closed state, the third arc surface 101233 abuts against the surface 102241 of the third protruding part, and there is a gap between the fourth arc surface 101234 and the groove surface 102131 of the third arc groove. In the process of the electronic device from the closed state to the unfolded state, the fourth arc surface 101234 abuts against the groove surface 102131 of the third arc groove, and there is a gap between the third arc surface 101233 and the surface 102241 of the third protruding part, so that the movement track of the second connecting piece 10123 in the process of the electronic device from the unfolded state to the closed state is different from the movement track of the second connecting piece 10123 in the process of the electronic device from the closed state to the unfolded state.

[0126] In the present application, the second swing arm 10121 is rotationally connected with the main shaft 102. Specifically, the second swing arm 10121 and the main shaft 102 can be rotationally connected by a virtual shaft. Figure 7 As shown in FIG. 10, the base 1021 can be provided with a fourth arc groove 10214. In addition, by referring to FIGS. 10 and 11, Figure 4 and Figure 15 , Figure 15The structure of the second swing arm 10121 can also be shown. An end of the second swing arm 10121 facing the base 1021 is provided with a second arc-shaped rotating block 101211. The second arc-shaped rotating block 101211 can be, but is not limited to, a circular arc-shaped rotating block. The fourth arc-shaped groove 10214 can be, but is not limited to, a circular arc-shaped groove. The second arc-shaped rotating block 101211 can be accommodated in the fourth arc-shaped groove 10214 and can slide along the groove surface of the fourth arc-shaped groove 10214. The rotation of the second swing arm 10121 around the base 1021 can be achieved by the sliding of the second arc-shaped rotating block 101211 along the groove surface of the fourth arc-shaped groove 10214. This can be conducive to reducing the space occupied by the second swing arm 10121 on the main shaft 102, thereby facilitating the reduction of the size of the rotating module 101, so as to facilitate the miniaturization design of the rotating shaft mechanism 1. It can be understood that, for the outer folding electronic device, when the second swing arm 10121 is rotationally connected to the main shaft 102 by means of a virtual shaft, the axis of rotation of the second swing arm 10121 around the main shaft 102 is located on the side of the rotating shaft mechanism away from the flexible display screen.

[0127] In addition, in the present application, the second arc-shaped rotating block 101211 can be, but is not limited to, a circular arc-shaped rotating block, and the fourth arc-shaped groove 10214 can be, but is not limited to, a circular arc-shaped groove. It can be understood that, when the second arc-shaped rotating block 101211 is a circular arc-shaped rotating block, the surface thereof used to contact the groove surface of the fourth arc-shaped groove 10214 can be a circular arc surface, and the groove surface of the fourth arc-shaped groove 10214 is also a circular arc surface. The centers of the two circular arc surfaces coincide.

[0128] In the present application, in order to improve the stability of the rotation of the second swing arm 10121 around the main shaft 102, as shown in Figure 8 The cover plate 1022 further includes a fourth protruding portion 10225 facing the fourth arc-shaped groove 10214. At least part of the second arc-shaped rotating block 101211 is located between the fourth protruding portion 10225 and the fourth arc-shaped groove 10214. The surface of the second arc-shaped rotating block 101211 facing the fourth protruding portion 10225 can be in contact with the surface 102251 of the fourth protruding portion. Thus, the second arc-shaped rotating block 101211 can be limited between the cover plate 1022 and the base 1021, which can effectively improve the stability of the rotation of the second arc-shaped rotating block 101211 relative to the base 1021. In addition, when the groove surface of the fourth arc-shaped groove 10214 is a circular arc surface, the part of the surface 102251 of the fourth protruding portion used to contact the second arc-shaped rotating block 101211 can also be a circular arc surface. The centers of the two circular arc surfaces coincide. In the present application, the surface of the second arc-shaped rotating block 101211 facing the fourth protruding portion 10225 can be a plane or a circular arc surface, as long as the second arc-shaped rotating block 101211 can rotate relative to the fourth protruding portion 10225 during the sliding of the second arc-shaped rotating block 101211 along the groove surface of the fourth arc-shaped groove 10214.

[0129] In order to improve the reliability of the connection between the second swing arm 10121 and the base 1021, the second arc-shaped rotating block 101211 can be further provided with a second recessed portion 1012111, and the opening of the second recessed portion 1012111 is arranged towards the cover plate 1022. In addition, the end of the cover plate 1022 facing the second shell fixing frame 1014 can be provided with a second plug-in portion. Then in the closed state, the second plug-in portion can be inserted into the second recessed portion 1012111, and the surface of the second plug-in portion facing the fourth arc-shaped groove 10214 abuts at least part of the surface of the second recessed portion 1012111. In this way, the rotation position of the second arc-shaped rotating block 101211 can be limited, so as to avoid the second arc-shaped rotating block 101211 from being pulled out of the fourth arc-shaped groove 10214.

[0130] It is worth mentioning that, in the present application, in addition to the virtual shaft connection between the second swing arm 10121 and the main shaft 102, the second swing arm 10121 can also be connected to the main shaft 102 through a solid shaft, which can make the connection between the first swing arm 10111 and the main shaft 102 more reliable. For the outer folding electronic device, when the second swing arm 10121 is connected to the main shaft 102 through a solid shaft, the axis of rotation of the second swing arm 10121 around the main shaft 102 is also located on the side of the rotation shaft mechanism away from the flexible display screen.

[0131] When the second connecting piece 10123 is connected to the second swing arm 10121 through the third rotation shaft 101231, the specific connection can continue to refer to Figure 15 , the second arc-shaped rotating block 101211 is provided with a second mounting groove 1012112, and the groove of the second mounting groove 1012112 is arranged towards the fourth arc-shaped groove 10214. Then the third rotation shaft 101231 can be mounted in the second mounting groove 1012112, and part of the surface of the third rotation shaft 101231 can be in contact with the groove surface of the second mounting groove 1012112, and part of the surface of the third rotation shaft 101231 is in contact with the groove surface of the fourth arc-shaped groove 10214, so as to limit the third rotation shaft 101231 in the second mounting groove 1012112.

[0132] As shown in Figure 15 , in the present application, the groove surface of the second mounting groove 1012112 can include a fifth circular arc surface 10121121, and as shown in Figure 10The surface of the third rotating shaft 101231 for contacting the groove surface of the second mounting groove 1012112 is a sixth circular arc surface 1012311, and the center of the fifth circular arc surface 10121121 coincides with the center of the sixth circular arc surface 1012311. In addition, the groove surface of the fourth arc-shaped groove 10214 is a seventh circular arc surface 102141, and the surface of the third rotating shaft 101231 for contacting the groove surface of the fourth arc-shaped groove 10214 can be an eighth circular arc surface 1012312, and the center of the seventh circular arc surface 102141 coincides with the center of the eighth circular arc surface 1012312. In this way, while the third rotating shaft 101231 slides along the groove surface of the fourth arc-shaped groove 10214 with the second arc-shaped rotating block 101211, the third rotating shaft 101231 can also rotate relative to the second arc-shaped rotating block 101211, thereby facilitating the movement of the second connecting piece 10123 relative to the main shaft 102.

[0133] In the embodiment of the present application, when the second connecting piece 10123 and the second support arm 10122 are rotationally connected through the fourth rotating shaft 101232, the fourth rotating shaft 101232 can be arranged in the second connecting piece 10123 and the second support arm 10122 at the same time, and the connection between the second connecting piece 10123 and the second support arm 10122 is relatively simple, which is beneficial to simplify the structure of the second rotating assembly 1012, so that the structure of the rotating shaft mechanism 1 can be simplified.

[0134] It can be understood that in the rotating shaft mechanism 1 provided by the embodiment of the present application, the second connecting piece 10123 can include a plurality of second sub-connecting pieces rotationally connected in sequence. In addition, the plurality of second sub-connecting pieces can be located between the second swing arm 10121 and the second support arm 10122, and the second swing arm 10121 can be rotationally connected with the adjacent second sub-connecting piece, and the second support arm 10122 can be rotationally connected with the adjacent second sub-connecting piece. The rotational connection between the second swing arm 10121 and the adjacent second sub-connecting piece, and the rotational connection between the second support arm 10122 and the adjacent second sub-connecting piece can be set according to the above description of the rotational connection between the second swing arm 10121 and the second connecting piece 10123, and the second support arm 10122 and the second connecting piece 10123, which will not be described here. In the present application, by setting the second connecting piece 10123 as a plurality of second sub-connecting pieces rotationally connected in sequence, the second swing arm 10121 and the second support arm 10122 are rotationally connected through a plurality of second sub-connecting pieces, which can effectively improve the uniformity of the speed of the second swing arm 10121 and the second support arm 10122 during rotation around the main shaft 102, and improve the smoothness of the mutual pulling movement of the second swing arm 10121 and the second support arm 10122.

[0135] Continuing to refer to Figure 4In the embodiment of the present application, the first rotating assembly 1011 is located between the first shell fixing frame 1013 and the second shell fixing frame 1014. The first swing arm 10111 is slidably connected with the first shell fixing frame 1013. In a specific implementation, the first shell fixing frame 1013 is provided with a first sliding groove 10131. The first sliding groove 10131 extends along a first direction, and the first swing arm 10111 can be installed in the first sliding groove 10131 and can slide in the first sliding groove 10131 along the first direction. The first direction can be a direction in which the first shell fixing frame 1013 moves towards or away from the base 1021. In addition, in order to avoid the first swing arm 10111 from falling out of the first sliding groove 10131, a first sliding groove can be arranged on the groove wall of the first sliding groove 10131, and a first sliding block can be arranged on the first swing arm 10111. In this way, the first sliding block can be clamped in the first sliding groove, and the first sliding block can slide along the first sliding groove, so as to limit the first swing arm 10111 in the first sliding groove 10131. In addition, by arranging the first sliding groove on the groove wall of the first sliding groove 10131, the first swing arm 10111 can be guided to slide along the first sliding groove 10131, thereby improving the stability of the movement of the first swing arm 10111.

[0136] In the present application, the first support arm 10112 can be rotatably connected with the second shell fixing frame 1014. In a specific implementation, the second shell fixing frame 1014 is provided with a second mounting portion 10142. The end of the first support arm 10112 towards the second shell fixing frame 1014 is mounted on the second mounting portion 10142, and the end of the first support arm 10112 towards the second shell fixing frame 1014 is rotatably connected with the second mounting portion 10142. Figure 4

[0137] In the embodiment of the present application, the specific manner in which the end of the first support arm 10112 towards the second shell fixing frame 1014 is rotatably connected with the second mounting portion 10142 is not limited. For example, the second mounting portion 10142 can be provided with a first mounting hole, and the end of the first support arm 10112 towards the second shell fixing frame 1014 can be provided with a second mounting hole, so that the end of the first support arm 10112 towards the first shell fixing frame 1013 and the second mounting portion 10142 can be rotatably connected by a rotating shaft penetrating the first mounting hole and the second mounting hole at the same time. Figure 4

[0138] Figure 16 Figure 16 ​​​​The movement mechanism principle diagram of the rotating shaft mechanism provided by the embodiment of the present application is shown in the figure. Based on the rotating shaft mechanism 1 provided by the above embodiment of the present application, in the process of the electronic device from the unfolded state to the closed state, the first shell fixing frame 1013 and the second shell fixing frame 1014 move towards each other, when the first shell fixing frame 1013 drives the first swing arm 10111 to rotate around the main shaft 102 in the clockwise direction, the first swing arm 10111 can slide along the groove surface of the second arc-shaped groove 10212, so as to drive the first connecting piece 10113 to move in the first trajectory groove 1023 of the main shaft 102 towards the first swing arm 10111. Since the first connecting piece 10113 is rotationally connected with the first support arm 10112, in the process of the first connecting piece 10113 moving in the first trajectory groove 1023 of the main shaft 102 towards the first swing arm 10111, the first connecting piece 10113 can drive the first support arm 10112 to rotate around the main shaft 102 in the counterclockwise direction, so as to drive the second shell fixing frame 1014 to rotate around the main shaft 102 in the counterclockwise direction through the first support arm 10112. In the process of the electronic device from the closed state to the unfolded state, the first shell fixing frame 1013 and the second shell fixing frame 1014 move away from each other, when the first shell fixing frame 1013 drives the first swing arm 10111 to rotate around the main shaft 102 in the counterclockwise direction, the first swing arm 10111 can drive the first connecting piece 10113 to move in the first trajectory groove 1023 of the main shaft 102 towards the first support arm 10112, so as to drive the first support arm 10112 to rotate around the main shaft 102 in the clockwise direction, so as to drive the second shell fixing frame 1014 to rotate around the main shaft 102 in the clockwise direction through the first support arm 10112, thereby realizing the folding and unfolding functions of the rotating shaft mechanism 1.

[0139] Through the above structural relationship, the cross section of the first connecting piece 10113 can be made smaller to shuttle in the first trajectory groove 1023 of the main shaft 102, and since the first connecting piece 10113 has sufficient length extension in the vertical axial direction and has a connection relationship with the first swing arm 10111 and the first support arm 10112 respectively, the reliability of the rotating shaft mechanism 1 can be ensured. In this way, the thickness of the main shaft 102 and the overall thickness can be reduced, and the reliability of the rotating shaft mechanism 1 can be maintained, so that the entire rotating shaft mechanism 1 is light, thin and reliable.

[0140] In addition, since the first connecting piece 10113 can move along the set track in the first track groove 1023, the movement of the first connecting piece 10113 in the whole folding and unfolding process can be avoided from being out of control, and then the randomness of the movement of the first shell fixing frame 1013 and the second shell fixing frame 1014 is avoided, so as to ensure the structural stability and movement stability of the whole rotating shaft mechanism 1. In some cases, through reasonable design of the first track groove 1023, the outer tangent of the rotating shaft mechanism 1 can also be kept constant in the whole folding and unfolding process, and then the flexible display screen covering the surface of the rotating shaft mechanism 1 can also be kept basically unchanged in length, so that the flexible display screen can be effectively avoided from being squeezed or pulled, so as to improve the structural reliability of the flexible display screen, and then the structural reliability of the electronic equipment is improved.

[0141] Reference can be made again to Figure 4 In the embodiment of the present application, the second swing arm 10121 can be slidably connected with the second shell fixing frame 1014. Specifically, the second shell fixing frame 1014 is provided with a second sliding groove 10141, which is arranged in the axial direction of the rotating shaft mechanism 1 and is spaced apart from the second mounting portion 10142. The second sliding groove 10141 extends in a second direction, and the second swing arm 10121 can be mounted in the second sliding groove 10141 and can slide in the second sliding groove 10141 in the second direction. The second direction can be the direction in which the second shell fixing frame 1014 moves towards or away from the base 1021. In addition, in order to avoid the second swing arm 10121 from falling out of the second sliding groove 10141, a second sliding groove can be arranged on the groove wall of the second sliding groove 10141, and a second sliding block can be arranged on the second swing arm 10121. In this way, the second sliding block can be clamped in the second sliding groove, and the second sliding block can slide along the second sliding groove, so as to limit the second swing arm 10121 in the second sliding groove 10141. In addition, by arranging the second sliding groove on the groove wall of the second sliding groove 10141, the sliding of the second swing arm 10121 along the second sliding groove 10141 can be guided, so as to improve the stability of the movement of the second swing arm 10121.

[0142] In addition, the second support arm 10122 can be rotatably connected with the first shell fixing frame 1013. Specifically, the first shell fixing frame 1013 has a first mounting portion 10132, which is arranged in the axial direction of the rotating shaft mechanism 1 and is spaced apart from the first sliding groove 10131. The end of the second support arm 10122 facing the first shell fixing frame 1013 is mounted on the first mounting portion 10132, and the end of the second support arm 10122 facing the first shell fixing frame 1013 is rotatably connected with the first mounting portion 10132.

[0143] In the embodiments of the present application, the specific manner in which the end of the second support arm 10122 facing the first shell fixing frame 1013 is rotationally connected to the first mounting portion 10132 is not limited. For example, referring back to Figure 4 , the first mounting portion 10132 can be provided with a third mounting hole, and the end of the second support arm 10122 facing the first shell fixing frame 1013 can be provided with a fourth mounting hole, and the end of the second support arm 10122 facing the first shell fixing frame 1013 can be rotationally connected to the first mounting portion 10132 by a rotation shaft that is simultaneously arranged in the third mounting hole and the fourth mounting hole.

[0144] Based on the rotation shaft mechanism 1 provided in the above embodiments of the present application, in the process in which the electronic device changes from the unfolded state to the folded state, the first shell fixing frame 1013 and the second shell fixing frame 1014 move towards each other, and when the second shell fixing frame 1014 drives the second swing arm 10121 to rotate around the main shaft 102 in the counterclockwise direction, the second swing arm 10121 can drive the second connecting piece 10123 to move towards the second swing arm 10121 in the second track groove 1024 of the main shaft 102. Since the second connecting piece 10123 is rotationally connected to the second support arm 10122, in the process in which the second connecting piece 10123 moves towards the second swing arm 10121 in the second track groove 1024 of the main shaft 102, the second connecting piece 10123 can drive the second support arm 10122 to rotate around the main shaft 102 in the clockwise direction, thereby driving the first shell fixing frame 1013 to rotate around the main shaft 102 in the clockwise direction through the second support arm 10122. In the process in which the electronic device changes from the folded state to the unfolded state, the first shell fixing frame 1013 and the second shell fixing frame 1014 move away from each other, and when the second shell fixing frame 1014 drives the second swing arm 10121 to rotate around the main shaft 102 in the clockwise direction, the second swing arm 10121 can drive the second connecting piece 10123 to move towards the second support arm 10122 in the second track groove 1024 of the main shaft 102, thereby driving the second support arm 10122 to rotate around the main shaft 102 in the counterclockwise direction, and driving the first shell fixing frame 1013 to rotate around the main shaft 102 in the counterclockwise direction through the second support arm 10122. Thus, the folding and unfolding functions of the rotation shaft mechanism 1 are realized.

[0145] Through the above structural relationship, the cross section of the second connecting piece 10123 can be made smaller to shuttle in the second track groove 1024 of the main shaft 102, and since the second connecting piece 10123 has sufficient length in the vertical axial direction and has a connection relationship with the second swing arm 10121 and the second support arm 10122 respectively, the reliability of the rotation shaft mechanism 1 can be ensured. In this way, the thickness of the main shaft 102 and the overall thickness of the device can be reduced, and the reliability of the rotation shaft mechanism 1 can be maintained, so that the entire rotation shaft mechanism 1 is light, thin and reliable.

[0146] Since the second connecting piece 10123 can move along the set track, the movement of the second connecting piece 10123 can be avoided from being out of control during the whole folding and unfolding process, and the randomness of the movement of the first shell fixing frame 1013 and the second shell fixing frame 1014 can be avoided, so as to ensure the stability of the structure and movement of the whole rotating shaft mechanism 1. In some cases, through reasonable design of the second track groove 1024, the tangent line of the outer side of the rotating shaft mechanism 1 can also be kept constant during the whole folding and unfolding process, so that the flexible display screen covering the surface of the rotating shaft mechanism 1 can also basically keep the length unchanged. In this way, the flexible display screen can be effectively prevented from being squeezed or pulled, so as to improve the structural reliability of the flexible display screen, and further improve the structural reliability of the electronic equipment.

[0147] After introducing the first rotating assembly and the second rotating assembly of the rotating shaft mechanism, the support assembly will be further described in detail.

[0148] Figure 17 A partial structure schematic view of the rotating shaft mechanism 1 provided by the embodiment of the present application is shown in Figure 4 and Figure 17 In the embodiment of the present application, the support assembly 103 can include a first support part 1031, a second support part 1032 and a third support part 1033. The first support part 1031 can be arranged at the end of the first shell fixing frame 1013 along the axial direction of the rotating shaft mechanism 1, and the first support part 1031 is located at the side of the first shell fixing frame 1013 close to the base 1021. The second support part 1032 can be arranged at the end of the second shell fixing frame 1014 along the axial direction of the rotating shaft mechanism 1, and the second support part 1032 is located at the side of the second shell fixing frame 1014 close to the base 1021. The third support part 1033 is arranged at the end of the base 1021 along the axial direction of the rotating shaft mechanism 1, that is, the third support part 1033 is located between the first support part 1031 and the second support part 1032.

[0149] Figure 18 A structure schematic view of the first support part 1031 and the second support part 1032 provided by the embodiment of the present application is shown in Figure 19 A structure schematic view of the third support part 1033 provided by the embodiment of the present application is shown in Figures 17 to 19 The first support part 1031 can be provided with a first protrusion 10311 and a first recess 10312, the second support part 1032 can be provided with a second protrusion 10321 and a second recess 10322, and correspondingly, the side of the third support part 1033 close to the first shell fixing frame 1013 can be provided with a third protrusion 10331 and a third recess 10332, and the side of the third support part 1033 close to the second shell fixing frame 1014 can be provided with a fourth protrusion 10333 and a fourth recess 10334.

[0150] Figure 20 This is a schematic diagram showing the relative positions of the first support portion 1031, the second support portion 1032, and the third support portion 1033 in the unfolded state of the pivot mechanism provided in this embodiment of the application. (See also...) Figure 17 and Figure 20 As shown in this embodiment, when the rotating shaft mechanism 1 is in the unfolded state, the third protrusion 10331 of the third support part 1033 is limited to the first groove 10312 of the first support part 1031, and the fourth protrusion 10333 of the third support part 1033 is limited to the second groove 10322 of the second support part 1032. In this way, through the cooperation of the third protrusion 10331 with the first groove 10312 and the cooperation of the fourth protrusion 10333 with the second groove 10322, the first support part 1031, the second support part 1032 and the third support part 1033 can be positioned laterally, reducing the risk of lateral displacement of the first support part 1031 and the second support part 1032, and thus reducing the risk of lateral misalignment between the first housing fixing frame 1013, the second housing fixing frame 1014 and the base 1021 in the unfolded state. The lateral direction can be understood as the arrangement direction of the first housing fixing frame 1013 and the second housing fixing frame 1014 on both sides of the base 1021.

[0151] Figure 21 This is a schematic diagram showing the relative positions of the first support portion 1031, the second support portion 1032, and the third support portion 1033 of the rotating shaft mechanism provided in the embodiments of this application in the closed state. (See also...) Figure 17 and Figures 19 to 21 As shown, when the rotating shaft mechanism 1 is in the closed state, the first protrusion 10311 of the first support part 1031 is limited to the third groove 10332 of the third support part 1033, and the second protrusion 10321 of the second support part 1032 is limited to the fourth groove 10334 of the third support part 1033. In this way, through the cooperation of the first protrusion 10311 and the third groove 10332, and the cooperation of the second protrusion 10321 and the fourth groove 10334, the first support part 1031 and the second support part 1032 can be positioned laterally at least, reducing the risk of lateral displacement of the first support part 1031 and the second support part 1032, and thus reducing the risk of lateral misalignment of the first housing fixing frame 1013, the second housing fixing frame 1014 and the base 1021 in the closed state.

[0152] In addition, it should be understood that the matching surface between the groove and the protrusion is not a plane. Taking the matching between the third protrusion 10331 and the first groove 10312 as an example, it can be concluded from the fact that the third protrusion 10331 is limited in the first groove 10312 that the first groove 10312 surrounds or partially surrounds the third protrusion 10331, and the contact surface of the first groove 10312 and the third protrusion 10331 is a curved surface composed of multiple planes facing in different directions. Correspondingly, the contact surface of the third protrusion 10331 and the first groove 10312 also includes multiple planes facing in different directions, and each plane of the third protrusion 10331 and each plane of the first groove 10312 abut respectively, limiting the first support portion 1031 in multiple directions including the lateral direction, thereby effectively limiting the freedom of the first support portion 1031 in multiple directions, that is, limiting the freedom of the first housing fixed frame in multiple directions. The existing shaft mechanism does not have a related support structure, and when the electronic device using such a shaft mechanism falls or collides, the housing fixed frame of the electronic device is easy to displace relative to the main shaft, thereby causing misalignment. Compared with the prior art, the shaft mechanism provided in the embodiments of the present application uses the cooperation of the protrusion and the groove, so that the electronic device using the shaft mechanism can effectively reduce the risk of misalignment of the housing fixed frame and the main shaft when the electronic device falls or collides, and improve the structural stability of the shaft mechanism.

[0153] Reference is made to Figures 19 to 21 In the embodiments of the present application, the third support portion 1033 can include a main body 10335 and a baffle 10336, wherein the baffle 10336 can be located on the side of the main body 10335 away from the base, and the third protrusion 10331, the third groove 10332, the fourth protrusion 10333 and the fourth groove 10334 are all arranged on the main body 10335. A plane perpendicular to the axial direction of the shaft mechanism is defined as a first plane. When the shaft mechanism is in the unfolded state, the projection of the baffle 10336 on the first plane covers at least part of the projection of the first support portion 1031 on the first plane and at least part of the projection of the second support portion 1032 on the first plane. That is, the baffle 10336 overlaps with the first support portion 1031 and the second support portion 1032 in the direction perpendicular to the axial direction of the shaft mechanism. Through this design, the first support portion 1031 and the second support portion 1032 can be positioned in the axial direction, reducing the risk of axial displacement of the first support portion 1031 and the second support portion 1032, and further reducing the risk of axial misalignment between the first housing fixed frame, the second housing fixed frame and the base in the unfolded state.

[0154] Similarly, the projection of the baffle 10336 on the first plane can also cover at least part of the projection of the first support portion 1031 on the first plane and at least part of the projection of the second support portion 1032 on the first plane in the closed state of the rotating shaft mechanism and in the process of switching between the unfolded state and the closed state, thereby reducing the risk of axial misalignment of the first shell fixing frame, the second shell fixing frame and the base in the closed state of the rotating shaft mechanism and in the process of switching between the unfolded state and the closed state.

[0155] In a specific implementation, the main body 10335 and the baffle 10336 of the third support portion 1033 can be an integrated structure, which helps to improve the structural strength of the third support portion 1033 and reduce the assembly difficulty of the rotating shaft mechanism.

[0156] Continuing to refer to Figures 19 to 21 In some embodiments, the groove wall of the first recess 10312 can include a first concave surface 103121, and correspondingly, the surface of the third protrusion 10331 can include a third convex surface 103311 consistent with the shape of the first concave surface 103121, which can increase the fitting degree of the surface of the third protrusion 10331 and the groove wall of the first recess 10312, avoid the movement of the third protrusion 10331 in the first recess 10312, and further reduce the risk of misalignment of the first shell fixing frame relative to the base in the unfolded state.

[0157] For example, in a specific implementation, the first concave surface 103121 can include a first inclined surface 1031211, and the third convex surface 103311 can include a third inclined surface 1033111, which gradually inclines away from the support surface of the main shaft in the direction of the third protrusion 10331 pointing to the fourth protrusion 10333 (i.e., the transverse direction of the first shell fixing frame pointing to the second shell fixing frame). When the electronic device is in the unfolded state, the third protrusion 10331 is limited in the first recess 10312, and the third inclined surface 1033111 of the third convex surface 103311 is parallel to and abuts against the first inclined surface 1031211 of the first concave surface 103121. If the electronic device falls or collides in the unfolded state, the cooperation of the first recess 10312 and the third protrusion 10331 not only can realize the transverse positioning of the first support portion 1031, but also can effectively limit the movement of the first support portion 1031 in the direction of the support surface of the main shaft, i.e., limit the movement of the first shell fixing frame in the direction of the flexible display screen, thereby avoiding the extrusion of the first shell fixing frame on the flexible display screen and reducing the risk of damage to the flexible display screen.

[0158] Similarly, the groove wall of the second groove 10322 comprises a second concave curved surface 103221, and correspondingly, the surface of the fourth protrusion 10333 can comprise a fourth convex curved surface 103331 which is consistent with the shape of the second concave curved surface 103221, so as to increase the fitting degree of the surface of the fourth protrusion 10333 and the groove wall of the second groove 10322, avoid the movement of the fourth protrusion 10333 in the second groove 10322, and further reduce the risk of dislocation of the second shell fixing frame relative to the base in the unfolded state.

[0159] Similarly, the second concave curved surface 103221 and the fourth convex curved surface 103331 comprise an arc surface, an inclined surface, or a combined curved surface formed by connecting the arc surface and the inclined surface. For example, in a specific implementation, the second concave curved surface 103221 can comprise a second inclined surface 1032211, and the fourth convex curved surface 103331 can comprise a fourth inclined surface 1033311, which gradually inclines away from the support surface of the main shaft in the direction in which the fourth protrusion 10333 points to the third protrusion 10331 (i.e., the transverse direction in which the second shell fixing frame points to the first shell fixing frame). When the electronic device is in the unfolded state, the fourth protrusion 10333 is limited in the second groove 10322, and the fourth inclined surface 1033311 of the fourth convex curved surface 103331 is parallel to and abuts against the second inclined surface 1032211 of the second concave curved surface 103221. If the electronic device falls or collides in the unfolded state, the cooperation between the second groove 10322 and the fourth protrusion 10333 not only can realize the transverse positioning of the second support portion 1032, but also can effectively limit the movement of the second support portion 1032 in the direction of the support surface of the main shaft, i.e., limit the movement of the second shell fixing frame in the direction of the flexible display screen, so as to avoid the extrusion of the second shell fixing frame on the flexible display screen and reduce the risk of damage to the flexible display screen.

[0160] In some embodiments, the groove wall of the third groove 10332 can comprise a third concave curved surface 103321, and correspondingly, the surface of the first protrusion 10311 can comprise a first convex curved surface 103111 which is consistent with the shape of the third concave curved surface 103321, so as to increase the fitting degree of the surface of the first protrusion 10311 and the groove wall of the third groove 10332, avoid the movement of the first protrusion 10311 in the third groove 10332, and further reduce the risk of dislocation of the first shell fixing frame relative to the base in the closed state.

[0161] Exemplarily, the third concave curved surface 103321 and the first convex curved surface 103111 include an arc surface, an inclined surface, or a combined curved surface formed by connecting the arc surface and the inclined surface. For example, in a specific implementation, the first convex curved surface 103111 can include a first inclined surface 1031111, and correspondingly, the third concave curved surface 103321 can include a third inclined surface 1033211, which gradually inclines toward the support surface of the main shaft in the direction in which the third groove 10332 points to the fourth groove 10334 (i.e., the transverse direction in which the first housing fixing frame points to the second housing fixing frame). When the electronic device is in the closed state, the first protrusion 10311 is limited in the third groove 10332, and the first inclined surface 1031111 of the first convex curved surface 103111 is parallel to and abuts against the third inclined surface 1033211 of the third concave curved surface 103321. If the electronic device falls or collides in the closed state, the third inclined surface 1033211 of the third concave curved surface 103321 can effectively limit the movement of the first support portion 1031 in the direction away from the third support portion 1033, that is, limit the movement of the first housing fixing frame in the direction away from the main shaft, thereby reducing the risk of failure of other components due to the outward expansion of the first housing fixing frame.

[0162] It should be noted that for the first support portion 1031, the first convex curved surface 103111 of the first protrusion 10311 and the first concave curved surface 103121 of the first groove 10312 can be adjacent and connected to each other in the circumferential direction of the first support portion. At this time, the first inclined surface 1031111 of the first convex curved surface 103111 and the first inclined surface 1031211 of the first concave curved surface 103121 can be the same inclined surface. This design is beneficial to simplify the shape structure of the first support portion 1031, thereby reducing the processing difficulty of the first support portion.

[0163] Similarly, the groove wall of the fourth groove 10334 can include a fourth concave curved surface 103341, and correspondingly, the surface of the second protrusion 10321 can include a second convex curved surface 103211 consistent with the shape of the fourth concave curved surface 103341. In this way, the fitting degree of the surface of the second protrusion 10321 and the groove wall of the fourth groove 10334 can be increased, the movement of the second protrusion 10321 in the fourth groove 10334 can be avoided, and the risk of dislocation of the second housing fixing frame relative to the base in the closed state can be further reduced.

[0164] Similarly, the fourth concave curved surface 103341 and the second convex curved surface 103211 can comprise an arc surface, an inclined surface, or a combined curved surface formed by connecting an arc surface and an inclined surface. For example, in a specific implementation, the second convex curved surface 103211 can comprise a second inclined surface 1032111, and the fourth concave curved surface 103341 can comprise a fourth inclined surface 1033411. In the direction of the fourth groove 10334 pointing to the third groove 10332 (i.e., the transverse direction of the second housing bracket pointing to the first housing bracket), the fourth inclined surface 1033411 of the fourth concave curved surface 103341 can gradually incline toward the support surface of the main shaft. When the electronic device is in the closed state, the second protrusion 10321 is limited in the fourth groove 10334, and the second inclined surface 1032111 of the second convex curved surface 103211 is parallel to the fourth inclined surface 1033411 of the fourth concave curved surface 103341 and abuts each other. If the electronic device falls or collides in the closed state, the fourth inclined surface 1033411 of the fourth concave curved surface 103341 can effectively limit the movement of the second support portion 1032 in the direction away from the third support portion 1033, that is, limit the movement of the second housing bracket in the direction away from the main shaft, thereby reducing the risk of failure of other components due to the outward expansion of the second housing bracket.

[0165] It should be noted that for the second support portion 1032, the second convex curved surface 103211 of the second protrusion 10321 and the second concave curved surface 103221 of the second groove 10322 can be adjacent and connected to each other in the circumferential direction of the second support portion 1032. At this time, the second inclined surface 1032111 of the second convex curved surface 103211 and the second inclined surface 1032211 of the second concave curved surface 103221 can be the same inclined surface. This design is beneficial to simplify the shape structure of the second support portion 1032, thereby reducing the processing difficulty of the second support portion 1032.

[0166] For reference Figure 17As shown, in the embodiment of the present application, the surface of the third protrusion 10331 and the groove wall of the third groove 10332 can be connected by the first connecting cam surface 10337, so that when the rotating shaft mechanism is switched from the unfolded state to the closed state, under the driving of the first shell fixing frame, the first protrusion 10311 of the first supporting part 1031 can smoothly transition into the third groove 10332 of the third supporting part 1033 under the guidance of the first connecting cam surface 10337, thereby reducing the risk of jamming of the first supporting part 1031 and the third supporting part 1033 during switching, and further improving the smoothness of the rotation of the first shell fixing frame relative to the base. Conversely, when the rotating shaft mechanism is switched from the closed state to the unfolded state, under the driving of the first shell fixing frame, the first groove 10312 of the first supporting part 1031 can smoothly transition to the periphery of the third protrusion 10331 of the third supporting part 1033 under the guidance of the first connecting cam surface 10337 to accommodate the third protrusion 10331, thereby reducing the risk of jamming of the first supporting part 1031 and the third supporting part 1033 during switching, and further improving the smoothness of the rotation of the first shell fixing frame relative to the base.

[0167] Based on the same principle, the surface of the fourth protrusion 10333 and the groove wall of the fourth groove 10334 can be connected by the second connecting cam surface 10338, so that when the rotating shaft mechanism is switched from the unfolded state to the closed state, under the driving of the second shell fixing frame, the second protrusion 10321 of the second supporting part 1032 can smoothly transition into the fourth groove 10334 of the third supporting part 1033 under the guidance of the second connecting cam surface 10338, thereby reducing the risk of jamming of the second supporting part 1032 and the third supporting part 1033 during switching, and further improving the smoothness of the rotation of the second shell fixing frame relative to the base. Conversely, when the rotating shaft mechanism is switched from the closed state to the unfolded state, under the driving of the second shell fixing frame, the second groove 10322 of the second supporting part 1032 can smoothly transition to the periphery of the fourth protrusion 10333 of the third supporting part 1033 under the guidance of the second connecting cam surface 10338 to accommodate the fourth protrusion 10333, thereby reducing the risk of jamming of the second supporting part 1032 and the third supporting part 1033 during switching, and further improving the smoothness of the rotation of the second shell fixing frame relative to the base.

[0168] As can be seen, through the above structural design, when the electronic device is in the unfolded state and the closed state, the third supporting part 1033 can realize concave-convex cooperation with the first supporting part 1031 and the second supporting part 1032, thereby limiting the relative positions between the first shell fixing frame and the base, and between the second shell fixing frame and the base, thereby reducing the risk of misalignment of the first shell and the second shell relative to the rotating shaft mechanism, and improving the reliability of the electronic device.

[0169] Of course, in other embodiments, by changing the positional relationship of the first protrusion 10311 and the first groove 10312 of the first support part 1031 relative to the flexible display screen, the positional relationship of the third protrusion 10331 and the third groove 10332 of the third support part 1033 relative to the flexible display screen, and changing the positional relationship of the second protrusion 10321 and the second groove 10322 of the second support part 1032 relative to the flexible display screen, the positional relationship of the fourth protrusion 10333 and the fourth groove 10334 of the third support part 1033 relative to the flexible display screen, the first support part 1031 and the third support part 1033, and the second support part 1032 and the third support part 1033 can also adopt the opposite matching relationship in the foregoing embodiments. For example, when the hinge mechanism is in the unfolded state, the first protrusion 10311 of the first support part 1031 is limited in the third groove 10332 of the third support part 1033, and the second protrusion 10321 of the second support part 1032 is limited in the fourth groove 10334 of the third support part 1033; when the hinge mechanism is in the closed state, the third protrusion 10331 of the third support part 1033 is limited in the first groove 10312 of the first support part 1031, and the fourth protrusion 10333 of the third support part 1033 is limited in the second groove 10322 of the second support part 1032. This design can also limit the relative relationship between the first shell fixing frame and the second shell fixing frame and the base, and details are not repeated here.

[0170] Please refer again to Figure 22 In the embodiments of the present application, the first support part 1031 and the first shell fixing frame 1013 can be an integral structure, that is, the first support part 1031 can be directly formed at the end of the first shell fixing frame 1013, thereby improving the connection strength between the first support part 1031 and the first shell fixing frame 1013, and reducing the assembly difficulty of the hinge mechanism 1. Of course, in other embodiments, the first support part 1031 and the first shell fixing frame 1013 can also be fixedly connected by welding, bonding or the like. This split design helps to simplify the processing difficulty of the first support part 1031 and the first shell fixing frame 1013.

[0171] Similarly, the second support part 1032 and the second shell fixing frame 1014 can adopt an integral design, or can also adopt a split design; and the third support part 1033 and the base 1021 can adopt an integral design, or can also adopt a split design.

[0172] Furthermore, the number of the first support portion 1031, the second support portion 1032, and the third support portion 1033 can each be two. The two first support portions 1031 can be respectively disposed at both ends of the first housing fixing frame 1013 along the axial direction of the rotating shaft mechanism 1; the two second support portions 1032 can be respectively disposed at both ends of the second housing fixing frame 1014 along the axial direction of the rotating shaft mechanism 1; and the two third support portions 1033 can be respectively disposed at both ends of the base 1021 along the axial direction of the rotating shaft mechanism 1. In this way, the support assembly 103 can limit the positioning of the first housing fixing frame 1013 and the second housing fixing frame 1014 at both ends of the rotating shaft mechanism 1, thereby further reducing the risk of misalignment between the first housing fixing frame 1013 and the first housing, and between the second housing fixing frame 1014 and the second housing relative to the base, and improving the structural reliability of the electronic device in drop or impact scenarios.

[0173] Figure 22 This is a schematic diagram of another electronic device provided as an embodiment of this application. (Reference) Figures 4 to 16 As shown in the embodiments of this application, the electronic device includes a pivot mechanism 1, a first housing 2, and a second housing 3. Similar to the previous embodiments, the pivot mechanism may include a base 1021, a first housing mounting bracket 1013, a second housing mounting bracket 1014, and one or more rotating modules. The first housing mounting bracket 1013 is fixedly connected to the first housing 2, and the second housing mounting bracket 1014 is fixedly connected to the second housing 3. Each rotating module may include a first rotating component and a second rotating component. The specific structures of the first and second rotating components, as well as the connection methods between the first rotating component and the first housing mounting bracket 1013, and between the second rotating component and the second housing mounting bracket 1014, can all refer to the aforementioned... ​ The configuration is shown in the example provided, and will not be repeated here.

[0174] In this embodiment, the electronic device may also include a support assembly 103, which includes a first support portion 1031, a second support portion 1032, and a third support portion 1033. Unlike the previous embodiments, in this embodiment, the first support portion 1031 and the second support portion 1032 are no longer disposed on the first housing fixing frame 1013 and the second fixing frame 1014 of the rotating shaft mechanism 1, but are directly disposed on the first housing 2 and the second housing 3 of the electronic device. Specifically, the first support portion 1031 may be disposed at the end of the first housing 2 along the axial direction of the rotating shaft mechanism 1, and the first support portion 1031 is located on the side of the first housing 2 near the base 1021; the second support portion 1032 may be disposed at the end of the second housing 3 along the axial direction of the rotating shaft mechanism 1, and the second support portion 1032 is located on the side of the second housing 3 near the base 1021; the third support portion 1033 may be disposed at the end of the base 1021 along the axial direction of the rotating shaft mechanism 1.

[0175] Similar to the embodiments described above, the first housing 2 can include a first outer shell with a first middle frame cover disposed on a side of the first middle frame facing away from the flexible display screen, and the second housing 3 can include a second middle frame and a second outer shell with a second middle frame cover disposed on a side of the second middle frame facing away from the flexible display screen. In the embodiments described above, the first support portion 1031 and the second support portion 1032 can be disposed on the first middle frame and the second middle frame, respectively.

[0176] In specific implementations, the first support portion 1031 can be provided with a first protrusion and a first recess, the second support portion 1032 can be provided with a second protrusion and a second recess, the side of the third support portion 1033 close to the first housing 2 can be provided with a third protrusion and a third recess, and the side of the third support portion 1033 close to the second housing 3 can be provided with a fourth protrusion and a fourth recess. The protrusion and recess designs of the first support portion 1031, the second support portion 1032, and the third support portion 1033 can be designed as described above, and thus will not be described in detail here.

[0177] In one embodiment, when the electronic device is in the unfolded state, the third protrusion of the third support portion 1033 is limited within the first recess of the first support portion 1031, and the fourth protrusion of the third support portion 1033 is limited within the second recess of the second support portion 1032; when the electronic device is in the closed state, the first protrusion of the first support portion 1031 is limited within the third recess of the third support portion 1033, and the second protrusion of the second support portion 1032 is limited within the fourth recess of the third support portion 1033. In this embodiment, in the unfolded state and the closed state of the electronic device, the relative positions between the first housing 2 and the base 1021 and between the second housing 3 and the base 1021 can be limited by the protrusion and recess cooperation between the third support portion 1033 and the first support portion 1031 and the second support portion 1032, thereby reducing the risk of misalignment of the first housing 2 and the second housing 3 relative to the rotation shaft mechanism 1. Based on the fixed connection relationship between the first housing 2 and the first housing fixing frame 1013 and the fixed connection relationship between the second housing 3 and the second housing fixing frame 1014, the risk of misalignment of the first housing fixing frame 1013 and the second housing fixing frame 1014 can also be reduced when the positions of the first housing 2 and the second housing 3 are limited.

[0178] In another embodiment, the first support part 1031 and the third support part 1033, and the second support part 1032 and the third support part 1033 can also adopt the opposite matching relationship as in the above embodiment. For example, when the electronic device is in the unfolded state, the first protrusion 10311 of the first support part 1031 is limited in the third groove 10332 of the third support part 1033, and the second protrusion 10321 of the second support part 1032 is limited in the fourth groove 10334 of the third support part 1033; when the electronic device is in the closed state, the third protrusion 10331 of the third support part 1033 is limited in the first groove 10312 of the first support part 1031, and the fourth protrusion 10333 of the third support part 1033 is limited in the second groove 10322 of the second support part 1032. This design can also limit the positions of the first shell 2 and the first shell fixing frame 1013, and the second shell 3 and the second shell fixing frame 1014, which will not be described in detail here.

[0179] In addition, in the embodiment of the present application, the first support part 1031 and the first shell 2 can be an integral structure, that is, the first support part 1031 can be directly formed at the end of the first shell 2, thereby improving the connection strength of the first support part 1031 and the second shell 2, and reducing the assembly difficulty of the electronic device. Of course, in other embodiments, the first support part 1031 and the first shell 2 can also be fixedly connected by welding, bonding or the like. This split design helps to simplify the processing difficulty of the first support part 1031 and the first shell 2.

[0180] Similarly, the second support part 1032 and the second shell 3 can adopt an integral design or a split design, and the third support part 1033 and the base 1021 can adopt an integral design or a split design.

[0181] Similarly to the foregoing embodiment, in the present embodiment, the number of the first support part 1031, the second support part 1032 and the third support part 1033 can be two respectively, wherein the two first support parts 1031 can be respectively arranged at the two ends of the first shell 2 along the axial direction of the rotation shaft mechanism 1, the two second support parts 1032 can be respectively arranged at the two ends of the second shell 3 along the axial direction of the rotation shaft mechanism 1, and the two third support parts 1033 can be respectively arranged at the two ends of the base 1021 along the axial direction of the rotation shaft mechanism 1. In this way, the support assembly 103 can limit the first shell 2 and the second shell 3 at both ends of the rotation shaft mechanism 1, thereby further reducing the risk of dislocation of the first shell 2 and the first shell fixing frame 1013, the second shell 3 and the second shell fixing frame 1014 relative to the base, and improving the structural reliability of the electronic device in the drop or impact scenario.

[0182] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A rotating shaft mechanism, characterized in that, The system includes a spindle, a first housing mounting bracket, a second housing mounting bracket, and a support assembly. The first housing mounting bracket and the second housing mounting bracket are respectively disposed on both sides of the spindle, and the first housing mounting bracket and the second housing mounting bracket are rotatable relative to the spindle. The support assembly includes a first support portion, a second support portion, and a third support portion, wherein: The first support portion is disposed at the end of the first housing fixing frame along the axial direction of the rotating shaft mechanism, and the first support portion is located on the side of the first housing fixing frame close to the main shaft. The first support portion is provided with a first protrusion and a first groove. The second support portion is disposed at the end of the second housing fixing frame along the axial direction of the rotating shaft mechanism, and the second support portion is located on the side of the second housing fixing frame close to the main shaft. The second support portion is provided with a second protrusion and a second groove. The third support portion is disposed at the end of the main shaft along the axial direction of the rotating shaft mechanism. The third support portion is provided with a third protrusion and a third groove on the side near the first housing fixing frame, and a fourth protrusion and a fourth groove on the side near the second housing fixing frame. When the rotating shaft mechanism is in the extended state, the third protrusion is located in the first groove and the fourth protrusion is located in the second groove; when the rotating shaft mechanism is in the closed state, the first protrusion is located in the third groove and the second protrusion is located in the fourth groove; or, when the rotating shaft mechanism is in the extended state, the first protrusion is located in the third groove and the second protrusion is located in the fourth groove; when the rotating shaft mechanism is in the closed state, the third protrusion is located in the first groove and the fourth protrusion is located in the second groove.

2. The rotating shaft mechanism as described in claim 1, characterized in that, The projection of the third support portion onto the first plane covers the projection of the main shaft onto the first plane; The first plane is a plane perpendicular to the axial direction of the rotating shaft mechanism.

3. The rotating shaft mechanism as described in claim 1, characterized in that, The third support portion includes a main body and a baffle. The third protrusion, the third groove, the fourth protrusion, and the fourth groove are all disposed on the main body. The baffle is located on the side of the main body opposite to the main shaft. When the rotating shaft mechanism is in the unfolded state and in the closed state, the projection of the baffle on the first plane covers at least a portion of the projection of the first support portion on the first plane and at least a portion of the projection of the second support portion on the first plane. The first plane is a plane perpendicular to the axial direction of the rotating shaft mechanism.

4. The rotating shaft mechanism as described in claim 1, characterized in that, The groove wall of the first groove includes a first concave curved surface, and the surface of the third protrusion includes a third convex curved surface with the same shape as the first concave curved surface; The groove wall of the second groove includes a second concave surface, and the surface of the fourth protrusion includes a fourth convex surface that has the same shape as the second concave surface.

5. The rotating shaft mechanism as described in claim 4, characterized in that, The first concave surface includes a first inclined surface, and the third convex surface includes a third inclined surface. Along the direction from the third protrusion to the fourth protrusion, the third inclined surface of the third convex surface gradually slopes away from the support surface of the main shaft. The second concave surface includes a second inclined surface, and the fourth convex surface includes a fourth inclined surface. Along the direction from the fourth protrusion to the third protrusion, the fourth inclined surface of the fourth convex surface gradually slopes away from the support surface of the main shaft. When the rotating shaft mechanism is in the unfolded state, the third inclined surface of the third convex surface is parallel to and abuts against the first inclined surface of the first concave surface, and the fourth inclined surface of the fourth convex surface is parallel to and abuts against the second inclined surface of the second concave surface. The supporting surface of the spindle is the side of the spindle used to support the flexible display screen of the electronic device.

6. The rotating shaft mechanism as described in any one of claims 1 to 5, characterized in that, The groove wall of the third groove includes a third concave curved surface, and the surface of the first protrusion includes a first convex curved surface that has the same shape as the third concave curved surface; The groove wall of the fourth groove includes a fourth concave surface, and the surface of the second protrusion includes a second convex surface that has the same shape as the fourth concave surface.

7. The rotating shaft mechanism as described in claim 6, characterized in that, The first convex surface includes a first inclined surface, the third concave surface includes a third inclined surface, and along the direction from the third groove to the fourth groove, the third inclined surface of the third concave surface gradually slopes toward the support surface of the main shaft; The second convex surface includes a second inclined surface, and the fourth concave surface includes a fourth inclined surface. Along the direction from the fourth groove to the third groove, the fourth inclined surface of the fourth concave surface gradually slopes toward the support surface of the main shaft. When the rotating shaft mechanism is in the closed state, the first inclined surface of the first convex surface is parallel to and abuts against the third inclined surface of the third concave surface, and the second inclined surface of the second convex surface is parallel to and abuts against the fourth inclined surface of the fourth concave surface. The supporting surface of the spindle is the side of the spindle used to support the flexible display screen of the electronic device.

8. The rotating shaft mechanism as described in any one of claims 1 to 5, characterized in that, The surface of the third protrusion and the wall of the third groove are connected by a first connecting arc surface, and the surface of the fourth protrusion and the wall of the fourth groove are connected by a second connecting arc surface.

9. The rotating shaft mechanism as described in any one of claims 1 to 5, characterized in that, The first support portion and the first housing fixing frame are an integral structure; and / or, The second support portion and the second housing fixing frame are an integral structure; and / or, The third support part is an integral structure with the main shaft.

10. The rotating shaft mechanism according to any one of claims 1 to 5, characterized in that, The number of the first support parts is two, and the two first support parts are respectively disposed at both ends of the first housing fixing frame along the axial direction of the rotating shaft mechanism; There are two second support parts, which are respectively disposed at both ends of the second housing fixing frame along the axial direction of the rotating shaft mechanism; The number of the third support parts is two, and the two third support parts are respectively disposed at both ends of the main shaft along the axial direction of the rotating shaft mechanism.

11. The rotating shaft mechanism according to any one of claims 1 to 5, characterized in that, The rotating shaft mechanism further includes a rotating module, through which the first housing fixing frame and the second housing fixing frame rotate relative to the main shaft.

12. The rotating shaft mechanism as described in claim 11, characterized in that, The rotating module includes a first rotating component and a second rotating component, wherein the first rotating component and the second rotating component are respectively located between the first housing fixing frame and the second housing fixing frame; wherein... The first rotating assembly includes a first swing arm, a first support arm, and a first connector. The first swing arm is rotatably connected to the main shaft and slidably connected to the first housing frame. The first support arm is rotatably connected to the second housing frame. The first connector is located between the first swing arm and the first support arm, and is rotatably connected to both the first swing arm and the first support arm. The second rotating assembly includes a second swing arm, a second support arm, and a second connecting member. The second swing arm is rotatably connected to the main shaft and slidably connected to the second housing frame. The second support arm is rotatably connected to the second housing frame. The second connecting member is located between the second swing arm and the second support arm, and is rotatably connected to both the second swing arm and the second support arm. The spindle is provided with a first track groove and a second track groove. The first connecting member can move along the first track groove to restrict the movement trajectory of the first connecting member through the first track groove. The second connecting member can move along the second track groove to restrict the movement trajectory of the second connecting member through the second track groove.

13. An electronic device, characterized in that, It includes a first housing, a second housing, a flexible display screen, and a pivot mechanism as described in any one of claims 1 to 12, wherein, The first housing and the second housing are respectively disposed on both sides of the rotating shaft mechanism. The first housing is fixedly connected to the first housing fixing frame, and the second housing is fixedly connected to the second housing fixing frame. The flexible display screen continuously covers the first housing, the second housing, and the rotating shaft mechanism, and the flexible display screen is fixedly connected to the first housing and the second housing.

14. An electronic device, characterized in that, It includes a rotating shaft mechanism, a first housing, a second housing, and a support assembly, wherein: The rotating shaft mechanism includes a main shaft, a first housing fixing frame, and a second housing fixing frame. The first housing fixing frame and the second housing fixing frame are respectively disposed on both sides of the main shaft, and the first housing fixing frame and the second housing fixing frame can rotate relative to the main shaft. The first housing fixing frame is fixedly connected to the first housing, and the second housing fixing frame is fixedly connected to the second housing. The support assembly includes a first support portion, a second support portion, and a third support portion. The first support portion is disposed at the end of the first housing along the axial direction of the rotating shaft mechanism, and the first support portion is located on the side of the first housing near the main shaft. The first support portion is provided with a first protrusion and a first groove. The second support portion is disposed at the end of the second housing along the axial direction of the rotating shaft mechanism, and the second support portion is located on the side of the second housing near the main shaft. The second support portion is provided with a second protrusion and a second groove. The third support portion is disposed at the end of the main shaft along the axial direction of the rotating shaft mechanism. The third support portion is provided with a third protrusion and a third groove on the side of the third support portion near the first housing, and a fourth protrusion and a fourth groove on the side of the third support portion near the second housing. When the rotating shaft mechanism is in the extended state, the third protrusion is located in the first groove and the fourth protrusion is located in the second groove; when the rotating shaft mechanism is in the closed state, the first protrusion is located in the third groove and the second protrusion is located in the fourth groove; or, when the rotating shaft mechanism is in the extended state, the first protrusion is located in the third groove and the second protrusion is located in the fourth groove; when the rotating shaft mechanism is in the closed state, the third protrusion is located in the first groove and the fourth protrusion is located in the second groove.

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