Rotating shaft mechanism and electronic equipment

Abstract

The invention 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 respectively, 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 the second supporting part is arranged at the end of the second shell fixing frame. The first supporting part is provided with a first bulge and a first groove; the second supporting part is arranged at the end part of the second shell fixing frame, and the second supporting part is provided with a second bulge and a second groove; the third supporting part is arranged at the end part of the base, and a fourth bulge and a fourth groove are arranged on one side, close to the second shell fixing frame, of the third supporting part; when the rotating shaft mechanism is in an unfolded state, the third protrusion is limited in the first groove, the fourth protrusion is limited in the second groove, and 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 in particular to a rotating shaft mechanism and electronic equipment. Background Art

[0002] As flexible display technology matures, the display mode of electronic devices has undergone tremendous changes. Foldable flexible screen mobile phones, foldable flexible screen tablets, and wearable electronic devices with foldable flexible screens are an important evolutionary direction for future smart electronic devices.

[0003] The hinge mechanism is a key component for foldable electronic devices to achieve the folding function, and its reliability is crucial to the overall reliability of the electronic device. The hinge mechanism generally includes multiple structural parts connected by transmission, and the electronic device can be closed or unfolded through the linkage between multiple structural parts. However, when the electronic device falls or hits, the structural parts of the hinge mechanism are prone to dislocation during the impact, which will not only destroy the strength of the structural parts, but also cause pulling on other components of the electronic device, seriously affecting the reliability of the electronic device. Summary of the invention

[0004] The present application provides a hinge mechanism and an electronic device to improve the structural reliability of the hinge mechanism, thereby improving the overall reliability of the electronic device.

[0005] In the first aspect, the present application provides a rotating shaft mechanism, which may include a main shaft, a first housing fixing frame, a second housing fixing frame and a supporting 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 respectively. The supporting assembly includes a first supporting portion, a second supporting portion and a third supporting portion, wherein the first supporting portion may be arranged at the end of the first housing fixing frame along the axial direction of the rotating shaft mechanism, and the first supporting portion is located on the side of the first housing fixing frame close to the main shaft, and the first supporting portion is provided with a first protrusion and a first groove; the second supporting portion may be arranged at the end of the second housing fixing frame along the axial direction of the rotating shaft mechanism, and the second supporting portion is located on the side of the second housing fixing frame close to the main shaft, and the second supporting portion is provided with a second protrusion and a second groove; the third supporting portion may be arranged at the end of the main shaft along the axial direction of the rotating shaft mechanism, and the side of the third supporting portion close to the first housing fixing frame may be provided with a third protrusion and a third groove, and the side close to the second housing fixing frame may be provided with a fourth protrusion and a fourth groove. When the rotating shaft mechanism is in the extended state, the third protrusion can be limited to the first groove, and the fourth protrusion can be limited to the second groove; when the rotating shaft mechanism is in the closed state, the first protrusion can be limited to the third groove, and the second protrusion can be limited to the fourth groove; or, when the rotating shaft mechanism is in the extended state, the first protrusion can be limited to the third groove, and the second protrusion can be limited to the fourth groove; when the rotating shaft mechanism is in the closed state, the third protrusion can be limited to the first groove, and the fourth protrusion can be limited to the second groove.

[0006] In the present application, when the rotating shaft mechanism is in the unfolded state, through the cooperation of the third protrusion and the first groove, and the cooperation of the fourth protrusion and the second groove, or through the cooperation of the first protrusion and the third groove, and the cooperation of the second protrusion and the fourth groove, the first support part, the second support part and the third support part can at least be positioned horizontally, reducing the risk of lateral displacement of the first support part and the second support part, thereby reducing the risk of misalignment of the first shell fixing frame, the second shell fixing frame and the base in the unfolded state of the rotating shaft mechanism. Similarly, when the rotating shaft mechanism is in the closed state, through the cooperation of the first protrusion and the third groove, and the cooperation of the second protrusion and the fourth groove, or through the cooperation of the three protrusions and the first groove, and the cooperation of the fourth protrusion and the second groove, the first support part, the second support part and the third support part can at least be positioned horizontally, reducing the risk of lateral displacement of the first support part and the second support part, thereby reducing the risk of misalignment of the first shell fixing frame, the second shell fixing frame and the base in the closed state of the rotating shaft mechanism.

[0007] Based on the above-mentioned rotating shaft mechanism of the present application, when the electronic device changes from an unfolded state to a closed state, the first shell fixing frame and the second shell fixing frame move toward each other. When the first shell fixing frame drives the first swing arm to rotate in a clockwise direction around the main axis, the first swing arm can drive the first connecting member to move toward the first swing arm in the first track groove of the main axis, thereby driving the first support arm to rotate in a counterclockwise direction around the main axis; when the second shell fixing frame drives the second swing arm to rotate in a counterclockwise direction around the main axis, the second swing arm can drive the second connecting member to move toward the second swing arm in the second track groove of the main axis, thereby driving the second support arm to rotate in a clockwise direction around the main axis. When the electronic device moves from the closed state to the unfolded state, the first housing fixing frame and the second housing fixing frame move in opposite directions. When the first housing fixing frame drives the first swing arm to rotate counterclockwise around the main axis, the first swing arm can drive the first connecting member to move toward the first support arm in the first track groove of the main axis, thereby driving the first support arm to rotate clockwise around the main axis; when the second housing fixing frame drives the second swing arm to rotate clockwise around the main axis, the second swing arm can drive the second connecting member to move toward the second support arm in the second track groove of the main axis, thereby driving the second support arm to rotate counterclockwise around the main axis. Thus, the folding and unfolding functions of the rotating shaft mechanism can be realized.

[0008] It should be understood that the mating surface between the groove and the protrusion in the present application is not a plane. Taking the mating of 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 facing different directions. Correspondingly, the contact surface between the third protrusion and the first groove also includes multiple planes facing different directions, and each plane of the third protrusion is respectively abutted against each plane of the first groove, forming a limit for the first support portion in multiple directions including the lateral direction, thereby effectively limiting the freedom of the first support portion in multiple directions, that is, limiting the freedom of the first shell fixing frame in multiple directions. However, the hinge mechanism in the prior art does not have a related support structure. When an electronic device using such a hinge mechanism falls or hits, its shell fixing frame is easily displaced relative to the main shaft, which leads to misalignment. Compared with the prior art, the hinge mechanism provided in the embodiment of the present application utilizes the cooperation of protrusions and grooves, so that the electronic device using the hinge mechanism can effectively reduce the risk of misalignment between the shell fixing frame and the main shaft when the electronic device falls or hits, regardless of whether it is in an unfolded state or a closed state, thereby improving the structural stability of the hinge 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 axis on the first plane. In other words, the peripheral edge of the third support portion exceeds the main axis, so that the third support portion has enough space to arrange the protrusions and grooves on both sides thereof, and it is also convenient to achieve cooperation with the first support portion and the second support portion.

[0010] In some embodiments, the third support portion may include a main body and a baffle, and the third protrusion, the third groove, the fourth protrusion, and the fourth groove may be arranged on the main body, and the baffle may 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. When the rotating shaft mechanism is in an expanded state and a closed state, the projection of the baffle on the first plane may cover at least part of the projection of the first support portion on the first plane, and cover at least part of the projection of the second support portion on the first plane. Through this design, the first support portion and the second support portion can be positioned in the axial direction, reducing the risk of axial misalignment of the first support portion and the second support portion, thereby reducing the risk of axial misalignment of the first shell fixing frame, the second shell fixing frame and the main shaft.

[0011] In a specific implementation, the main body and the baffle of the third support portion may be an integrally formed structure to improve the structural strength of the third support portion and reduce the difficulty of assembling the rotating shaft mechanism.

[0012] In some embodiments, the groove wall of the first groove may include a first concave curved surface, and the surface of the third protrusion may include a third convex curved surface that is consistent with the shape of the first concave curved surface, so that the fit between the surface of the third protrusion and the groove wall of the first groove can be increased, and the risk of the third protrusion moving in the first groove can be reduced or avoided. Similarly, the groove wall of the second groove includes a second concave curved surface, and the surface of the fourth protrusion includes a fourth convex curved surface that is consistent with the shape of the second concave curved surface, so that the fit between the surface of the fourth protrusion and the groove wall of the second groove can be increased, and the risk of the fourth protrusion moving in the second groove can be reduced or avoided.

[0013] For example, the first concave surface may include a first inclined surface, the third convex surface may include a third inclined surface, and along the direction from the third protrusion to the fourth protrusion, the third inclined surface of the third convex surface may gradually tilt away from the support surface of the main shaft; the second concave surface may include a second inclined surface, the fourth convex surface may include a fourth inclined surface, and along the direction from the fourth protrusion to the third protrusion, the fourth inclined surface of the fourth convex surface gradually tilts away from the support surface of the main shaft. 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 may include a third concave curved surface, and the surface of the first protrusion may include a first convex curved surface that is consistent with the shape of the third concave curved surface, thereby increasing the fit between the first protrusion and the third groove, and reducing or avoiding the risk of the first protrusion moving in the third groove. Similarly, the groove wall of the fourth groove may include a fourth concave curved surface, and the surface of the second protrusion may include a second convex curved surface that is consistent with the shape of the fourth concave curved surface, thereby increasing the fit between the second protrusion and the fourth groove, and reducing or avoiding the risk of the second protrusion moving in the fourth groove.

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

[0016] In some embodiments, the surface of the third protrusion can be connected to the groove wall of the third groove through a first connecting arc surface, and the surface of the fourth protrusion can be connected to the groove wall of the fourth groove through a second connecting arc surface. In this way, when the rotating shaft mechanism switches from the expanded state to the closed state or from the closed state to the expanded state, the first connecting arc surface can provide a guiding effect for the first protrusion or the first groove of the first supporting part, and the second connecting arc surface can provide a guiding effect for the second protrusion or the second groove of the second supporting part, thereby reducing the risk of the first supporting part and the third supporting part, and the second supporting part and the third supporting part being stuck, 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 portion and the first shell fixing frame may be an integral structure, thereby improving the connection strength between the first support portion and the first shell fixing frame.

[0018] Similarly, the second support portion and the second housing fixing frame may also be an integral structure, thereby improving the connection strength between the second support portion and the second housing fixing frame. Also, the third support portion and the main shaft may also be an integral structure, thereby improving the connection strength between the third support portion and the main shaft.

[0019] In some embodiments, the number of the first support portion and the second support portion can be two, respectively, and the two first support portions are respectively arranged at the two ends of the first shell fixing frame along the axial direction of the rotating shaft mechanism, and the two second support portions are respectively arranged at the two ends of the second shell fixing frame along the axial direction of the rotating shaft mechanism. Correspondingly, the number of the third support portions can also be two, and the two third support portions are respectively arranged at the 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 the first shell fixing frame and the second shell fixing frame being misaligned relative to the main shaft, and improving the structural reliability of the electronic device using the rotating shaft mechanism in the falling or impact scenario.

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

[0021] For example, in a specific embodiment, the rotating module may include a first rotating component and a second rotating component, and 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 component may include a first swing arm, a first support arm and a first connecting member, the first swing arm is rotatably connected to the main shaft, the first swing arm is slidably connected to the first housing fixing frame, the first support arm is rotatably connected to the second housing fixing frame, the first connecting member is located between the first swing arm and the first supporting arm, and the first connecting member is rotatably connected to the first swing arm and the first supporting arm respectively; the second rotating component may include a second swing arm, a second support arm and a second connecting member, the second swing arm is rotatably connected to the main shaft, the second swing arm is slidably connected to the second housing fixing frame, the second supporting arm is rotatably connected to the first housing fixing frame, the second connecting member is located between the second swing arm and the second supporting arm, and the second connecting member is rotatably connected to the second swing arm and the second supporting arm respectively. The main shaft is provided with a first track groove and a second track groove, the first connecting member can move along the first track groove to limit the movement track of the first connecting member through the first track groove, and the second connecting member can move along the second track groove to limit the movement track of the second connecting member through the second track groove.

[0022] In a second aspect, the present application further provides an electronic device, which includes a first shell, a second shell, a flexible display screen, and a 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 to the first shell, and the second shell fixing frame is fixedly connected to the second shell. The flexible display screen continuously covers the first shell, the second shell, and the hinge mechanism, and the flexible display screen is fixedly connected to the first shell and the second shell. When the electronic device is in the unfolded state and the closed state, the third support portion can achieve a concave-convex fit with the first support portion and the second support portion, thereby limiting 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 misalignment 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 present application, the main shaft includes a base and a cover plate, the cover plate is disposed on the base, the base is provided with a first arc-shaped groove, and the cover plate includes a first protrusion disposed toward the first arc-shaped groove, and the gap between the surface of the first protrusion and the groove surface of the first arc-shaped groove can serve as a first track groove. In addition, the first connecting member may include a first arc-shaped surface and a second arc-shaped surface, and when the electronic device is in an unfolded state and a closed state, 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 member to the first track groove, so that when the rotating shaft mechanism is in the unfolded state and the closed state, the position of the first connecting member is relatively stable, and no virtual position shaking occurs, so as to improve the reliability of the rotating shaft mechanism in the above two states.

[0024] In addition, the base may also be provided with a third arc groove, and the cover plate may also include a third protrusion provided toward the third arc groove, and the gap between the surface of the third protrusion and the groove surface of the third arc groove serves as the second track groove, and the second connecting member includes a third arc surface and a fourth arc surface, and when the electronic device is in the unfolded state and the closed 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. Thus, the surface of the third protrusion and the groove surface of the third arc groove limit the second connecting member to the second track groove, so that when the rotating shaft mechanism is in the unfolded state and the closed state, the position of the second connecting member is relatively stable, and no virtual position shaking occurs, so as to improve the reliability of the rotating shaft mechanism in the above two states.

[0025] In a possible implementation of the present application, when the electronic device changes from the expanded state to the closed state, the first arc surface abuts against the surface of the first protrusion, and there is a gap between the second arc surface and the groove surface of the first arc groove. When the electronic device changes from the closed state to the expanded state, the second arc surface abuts against the groove surface of the first arc groove, and there is a gap between the first arc surface and the surface of the first protrusion. As a result, the movement trajectory of the first connecting member in the first trajectory groove when the electronic device changes from the expanded state to the closed state is different from the movement trajectory of the first connecting member in the first trajectory groove when the electronic device changes from the closed state to the expanded state, which is conducive to improving the flexibility of the hinge mechanism design.

[0026] In addition, when the electronic device changes from the unfolded state to the closed state, the third arc surface abuts against the surface of the third protrusion, and there is a gap between the fourth arc surface and the groove surface of the third arc groove. When the electronic device changes from the closed state to the unfolded state, the fourth arc surface abuts against the groove surface of the third arc groove, and there is a gap between the third arc surface and the surface of the third protrusion. As a result, the movement track of the second connecting member in the second track groove when the electronic device changes from the unfolded state to the closed state is different from the movement track of the second connecting member in the second track groove when the electronic device changes from the closed state to the unfolded state, which is conducive to improving the flexibility of the hinge mechanism design.

[0027] In the present application, the movement track of the first connector in the first track groove during the electronic device's transition from the unfolded state to the closed state can also be the same as the movement track of the first connector in the first track groove during the electronic device's transition from the closed state to the unfolded state. Specifically, the spacing between the surface of the first protrusion and the groove surface of the first arc groove is equal at all locations, and the first track groove is an equal-width groove. During the electronic device's transition 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 can help improve the stability of the movement of the first connector in the first track groove. Similarly, the spacing between the surface of the third protrusion and the groove surface of the third arc groove at all locations can also be equal, so that the second track groove is a groove of equal width. In addition, when the electronic device changes from the expanded state to the closed state and from the closed state to the expanded 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 trajectory of the second connecting member in the second track groove when the electronic device changes from the expanded state to the closed state is the same as the movement trajectory of the second connecting member in the second track groove when the electronic device changes from the closed state to the expanded state, thereby improving the stability of the second connecting member's movement in the second track groove.

[0028] In a possible implementation of the present application, the first arcuate surface of the first connecting member may be a circular arc surface, and the second arcuate surface may also be a circular arc surface. In this case, the sum of the radius of the first arcuate surface and the radius of the second arcuate surface can be equal to the distance between the surface of the first protrusion and the groove surface of the first arcuate groove, so as to improve the smoothness of the movement of the first connecting member in the first trajectory groove.

[0029] Similarly, the third arc surface of the second connecting member can be an arc surface, and the fourth arc surface can also be an arc surface. In this case, 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 groove, so as to improve the smoothness of the movement of the second connecting member in the second track groove.

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

[0031] In the present application, when the electronic device is in the unfolded state, through the cooperation of the third protrusion and the first groove, and the cooperation of the fourth protrusion and the second groove, or through the cooperation of the first protrusion and the third groove, and the cooperation of the second protrusion and the fourth groove, the first support part, the second support part and the third support part can at least be positioned horizontally, reducing the risk of lateral displacement of the first support part and the second support part, thereby 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, through the cooperation of the first protrusion and the third groove, and the cooperation of the second protrusion and the fourth groove, or through the cooperation of the three protrusions and the first groove, and the cooperation of the fourth protrusion and the second groove, the first support part, the second support part and the third support part can at least be positioned horizontally, reducing the risk of lateral displacement of the first support part and the second support part, thereby 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 mating of the third protrusion and the first groove as an example, it can be concluded that the third protrusion is limited in the first groove, 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 facing different directions. Correspondingly, the contact surface between the third protrusion and the first groove also includes multiple planes facing different directions, and each plane of the third protrusion is respectively abutted against each plane of the first groove, forming a limit in multiple directions including the horizontal direction for the first support portion, thereby effectively limiting the freedom of the first support portion in multiple directions, that is, limiting the freedom of the first shell in multiple directions. However, the electronic device in the prior art does not have a related support structure. When the electronic device falls or hits, its shell is easily displaced relative to the main shaft, which leads to the situation of misalignment. Compared with the prior art, the electronic device provided in the embodiment of the present application uses the mating of the protrusion and the groove, so that the electronic device can effectively reduce the risk of misalignment between the shell and the main shaft when the electronic device falls or hits, and improve the structural stability of the electronic device, whether it is in an expanded state or a closed state. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic diagram of a structure of an electronic device provided in an embodiment of the present application when in a closed state;

[0034] Figure 2a A schematic diagram of a structure of an electronic device provided in an embodiment of the present application when in an unfolded state;

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

[0036] Figure 3 for Figure 2b A schematic diagram of a partial structure of a rotating shaft mechanism of an electronic device in FIG.

[0037] Figure 4 for Figure 3 An exploded view of the structure shown in;

[0038] Figure 5 A cross-sectional view of the first connecting member of the rotating shaft mechanism provided in an embodiment of the present application when the electronic device is in an unfolded state;

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

[0040] Figure 7 for Figure 6 A structural schematic diagram of the base of the main shaft shown;

[0041] Figure 8 for Figure 6 A schematic structural diagram of a cover plate of the main shaft shown;

[0042] Fig. 9 A cross-sectional view of the first connecting member of the rotating shaft mechanism provided in an embodiment of the present application when the electronic device is in a closed state;

[0043] Fig.10 A schematic structural diagram of a first connecting member provided in an embodiment of the present application;

[0044] Fig.11 A schematic diagram of the assembly structure of the first connecting member and the main shaft provided in an embodiment of the present application;

[0045] Fig.12 for Figure 3 AA cross-sectional view of the structure shown in;

[0046] Fig.13 A cross-sectional view of the first swing arm of the rotating shaft mechanism provided in an embodiment of the present application when the electronic device is in a closed state;

[0047] Fig.14 A schematic diagram of the structure of a first rotating assembly provided in an embodiment of the present application;

[0048] Fig.15 A structural schematic diagram of a first swing arm provided in an embodiment of the present application;

[0049] Fig.16 A schematic diagram of the motion mechanism of the rotating shaft mechanism provided in an embodiment of the present application;

[0050] Fig.17 A schematic diagram of a partial structure of a rotating shaft mechanism provided in an embodiment of the present application;

[0051] Fig.18 A schematic diagram of the structure of the first support portion and the second support portion provided in an embodiment of the present application;

[0052] Fig.19 A schematic diagram of the structure of a third support portion provided in an embodiment of the present application;

[0053] Fig. 20 A schematic diagram of the structure of a support assembly in an unfolded state of a rotating shaft mechanism provided in an embodiment of the present application;

[0054] Fig.21 A schematic diagram of the structure of the first support assembly of the rotating shaft mechanism provided in an embodiment of the present application in a closed state;

[0055] Fig. 22 A schematic diagram of the structure of another electronic device provided in an embodiment of the present application.

[0056] Reference numerals:

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

[0058] 1012-second rotating assembly; 10121-second swing arm; 101211-second arc-shaped rotating block; 1012111-second recessed portion; 1012112-second mounting groove; 10121121-fifth arc surface; 10122-second supporting arm; 10123-second connecting member; 101231-third rotating shaft; 1012311-sixth arc surface; 1012312-eighth arc surface; 101232-fourth rotating shaft; 101233-third arc surface; 101234-fourth arc surface;

[0059] 1013-first housing fixing frame; 10131-first slide groove; 10132-first mounting portion;

[0060] 1014-second housing fixing frame; 10141-second slide slot; 10142-second mounting portion;

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

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

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

[0064] 102221 - surface of the second protruding portion; 10223 - first plug-in portion; 10224 - third protruding portion;

[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 portion;

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

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

[0070] 1032- second supporting portion;

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

[0072] 10322- a second groove; 103221- a second concave curved surface; 1032211- a second inclined surface of the second concave curved surface;

[0073] 1033-third supporting portion;

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

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

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

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

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

[0079] 2-first shell; 2a-first supporting surface of the first shell; 2b-second surface of the first shell;

[0080] 3 - second shell; 3a - second supporting surface of the second shell; 3b - second surface of the second shell. DETAILED DESCRIPTION

[0081] In order to make the purpose, technical scheme and advantages of the present application clearer, the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. However, the example implementation can be implemented in various forms and should not be construed as being limited to the implementations set forth herein. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted. The words expressing position and direction described in the embodiments of the present application are all illustrated by taking the accompanying drawings as examples, but changes may be made as needed, and the changes made are all included in the scope of protection of the present application. The drawings of the embodiments of the present application are only used to illustrate the relative position relationship and do not represent the true proportion.

[0082] It should be noted that specific details are described in the following description to facilitate understanding of the present application. However, the embodiments of the present application can be implemented in a variety of other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the embodiments of the present application. Therefore, the present application is not limited to the specific implementation methods disclosed below.

[0083] refer to Figure 1 As shown, Figure 1 The schematic diagram of the structure of an electronic device provided in an embodiment of the present application is as follows. The electronic device may be a mobile phone, a personal digital assistant (PDA), a notebook computer, a tablet computer or other foldable device. Figure 1 The electronic device of the illustrated embodiment is described by taking a laptop computer as an example. The electronic device may include a hinge mechanism 1, a flexible display screen (not shown in the figure), and two shells. For the convenience of description, the two shells are named as a first shell 2 and a second shell 3, respectively. The first shell 2 and the second shell 3 are located on both sides of the hinge mechanism 1 and can rotate around the hinge mechanism 1. When the electronic device is in use, it can be closed and unfolded according to different usage scenarios.

[0084] In the present application, the electronic device may be an outward-folding electronic device, wherein the flexible display screen is always located outside the electronic device during the process of the outward-folding electronic device changing from an unfolded state to a closed state. Figure 1 The figure shows the relative positional relationship between the hinge mechanism 1 and the two shells when the electronic device is in a closed state. At this time, the first surface of the hinge mechanism 1, the first surface of the first shell, and the first surface of the second shell can serve as the support surface of the flexible display screen. Figure 1 The flexible display screen is omitted, the first surface of the hinge mechanism 1 refers to the surface of the hinge mechanism 1 facing the flexible display screen, the first surface of the first shell 2 refers to the surface of the first shell 2 facing the flexible display screen, and the first surface of the second shell 3 refers to the surface of the second shell 3 facing the flexible display screen. For ease of description, in this application, the first surface of the hinge mechanism 1 can be defined as the support surface 1a of the hinge mechanism 1, the first surface of the first shell 2 can be defined as the first support surface 2a, and the first surface of the second shell 3 can be defined as the second support surface 3a.

[0085] Please refer to Figure 2a , Figure 2a A schematic diagram of a structure of an electronic device in an unfolded state is shown, and Figure 2a The structure of the first support surface 2a of the first shell 2 and the second support surface 3a of the second shell 3 is shown. In the unfolded state, the support surface 1a of the hinge mechanism 1, the first support surface 2a of the first shell 2 and the second support surface 3a of the second shell 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 hinge mechanism 1, the first support surface 2a of the first shell 2, and the second support surface 3a of the second shell 3. The hinge mechanism 1 is arranged opposite to the foldable part of the flexible display screen, and the flexible display screen can be fixedly connected to the first support surface 2a of the first shell 2 and the second support surface 3a of the second shell 3, and the connection method can be but not limited to bonding. In this way, when the electronic device is in a state such as Figure 2a In the unfolded state shown, the hinge mechanism 1, the first shell 2 and the second shell 3 can play a role in flattening and supporting the flexible display screen.

[0087] Please refer to Figure 2b , Figure 2b Another structural schematic diagram of an electronic device provided in an embodiment of the present application when in an unfolded state. Figure 2b, the structure of the second surface 1b of the hinge mechanism 1, the second surface 2b of the first shell 2, and the second surface 3b of the second shell 3 are shown. Among them, the second surface 1b of the hinge mechanism 1 refers to the side of the hinge mechanism 1 facing away from the flexible display screen, the second surface 2b of the first shell 2 refers to the side of the first shell 2 facing away from the flexible display screen, and the second surface 3b of the second shell 3 refers to the side of the second shell 3 facing away from the flexible display screen. Then, the support surface 1a of the hinge mechanism 1 and the second surface 1b are arranged opposite to each other, the support surface 2a of the first shell 2 and the second surface 2b are arranged opposite to each other, and the support surface 3a and the second surface 3b of the second shell 3 are arranged opposite to each other.

[0088] In an embodiment of the present application, the first shell 2 may include a first middle frame and a first outer shell, and the second shell 3 may include a second middle frame and a second outer shell, wherein the first outer shell may cover a side of the first middle frame facing away from the flexible display screen, and the second outer shell may cover a side of the second middle frame facing away from the flexible display screen. At this time, accommodating spaces may be formed between the first outer shell and the first middle frame and between the second outer shell and the second middle frame, respectively, and the two accommodating spaces may be used to place batteries, motherboards, receivers, microphones and other devices of the electronic device. Figure 2b 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. Figure 2b The second surface 2b of the first shell 2 shown in the figure is the side of the first middle frame facing away from the flexible display screen, rather than the outer surface of the first shell 2 facing away from the flexible display screen. Similarly, Figure 2b The second surface 3b of the second shell 3 shown in the figure is a surface of the second middle frame facing away from the flexible display screen, rather than the outer surface of the second shell 3 facing away from the flexible display screen.

[0089] In the embodiment of the present application, the second surface 1b of the hinge mechanism 1, the outer surface of the first shell facing away from the flexible display screen, and the outer surface of the second shell facing away from the flexible display screen can be used together as the appearance surface of the electronic device. It can be understood that for an outward-folding electronic device, its appearance surface is exposed to the outside of the electronic device when the electronic device is in an unfolded state; and when the electronic device is in a closed state, its appearance surface is located on the inside of the electronic device. In the present application, the first shell 2 and the second shell 3 are composed of Figure 2a or Figure 2b The expanded state shown to Figure 1 The closed state shown, or by Figure 1 The closed state shown to Figure 2a or Figure 2b During the relative rotation of the unfolded state shown in FIG. 1 , the flexible display screen can be bent or flattened along with the first shell 2 and the second shell 3. In addition, it can be understood that the electronic device is composed of Figure 2a or Figure 2b The expanded state shown to Figure 1 The closed state shown, or by Figure 1The closed state shown to Figure 2a or Figure 2b The unfolded state process shown in FIG. 1 is the process in which the first housing 2 and the second housing 3 rotate around the hinge mechanism 1. The hinge mechanism 1 is a key functional component in a foldable electronic device, and it can be arranged corresponding to the foldable part of the flexible display screen. Figure 2a or Figure 2b The expanded state shown and in Figure 1 The foldable portion of the flexible display plays an important role in supporting the foldable portion of the flexible display in the closed state shown.

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

[0091] Reference Figure 4 , Figure 4 for Figure 3 The rotating module 101 may include a first rotating component 1011 and a second rotating component 1012. Figure 4 As shown, the rotating shaft mechanism 1 may further include a main shaft 102, which may serve as a bearing component for the first rotating assembly 1011 and the second rotating assembly 1012. The first rotating assembly 1011 and the second rotating assembly 1012 may rotate relative to the main shaft.

[0092] It is worth mentioning that in the embodiment of the present application, when there are multiple rotating modules 101, the first rotating components 1011 and the second rotating components 1012 of the multiple rotating modules 101 can all use the same main shaft 102 as a bearing component to improve the integration of the rotating shaft mechanism 1. In some other possible embodiments of the present application, the rotating shaft mechanism 1 can be provided with a main shaft 102 corresponding to each rotating module 101, so that the first rotating component 1011 and the second rotating component 1012 of each rotating module 101 use the corresponding main shaft 102 as a bearing component.

[0093] The rotating shaft mechanism may also include a first housing fixing frame 1013 and a second housing fixing frame 1014, and the first housing fixing frame 1013 and the second housing fixing frame 1014 are respectively arranged on opposite sides of the main shaft 102. The first housing fixing frame 1013 may be used for fixed connection with the first housing 2, for example, it may be fixedly connected with the first middle frame of the first housing 2, and the second housing fixing frame 1014 may be used for fixed connection with the second housing 3, for example, it may be fixedly connected with the second middle frame of the second housing 3. In addition, the first housing fixing frame 1013 may also be transmission-connected 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 may also be transmission-connected 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 housing fixing frame 1013 drives the first rotating assembly 1011 to rotate around the main axis, and the second housing fixing frame 1014 drives the second rotating assembly 1012 to rotate around the main axis. In this way, by reasonably designing the structures of the first rotating assembly 1011 and the second rotating assembly 1012, the movement trajectories 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 rotation mode.

[0094] In addition, in order to reduce the risk of dislocation or damage of structural parts of the electronic device (including rotating components, shell fixing frames or shells, etc.) in scenarios such as the electronic device falling or impacting, the electronic device in the embodiment of the present application also provides a support component 103 that can provide limiting support for the above-mentioned structural parts, so that the electronic device can be effectively supported in both the unfolded and folded states, thereby improving the structural reliability of the electronic device.

[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 Figures 4 to 16 A specific implementation of the hinge mechanism shown in the figure, in addition to being able to realize the support and limit function of the rotating assembly, the housing fixing frame or the housing and other structural parts, the hinge mechanism 1 can also realize the flat support of the flexible display screen, and in the intermediate state of the electronic device and the unfolding or folding process, the bending part of the flexible display screen can be evenly stressed, and when the electronic device is in the folded state, it can provide a storage space for the flexible display screen, and the storage space can ensure that the bending part of the flexible display screen has a certain degree of curvature to avoid being squeezed. Furthermore, the hinge mechanism 1 can also keep the length of the flexible display screen unchanged during 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 method between the rotating assembly and the housing fixing frame can be various, for example, the rotating assembly and the main shaft can be rotatably connected, the rotating assembly and the housing fixing frame can be fixedly connected, rotatably connected or slidably connected, etc. The following embodiment is only a possible implementation method of the rotating assembly for realizing the folding and unfolding function of the electronic device. The rotating assembly can also be realized in other ways. As long as the housing bracket can be rotated relative to the main shaft to realize the folding and unfolding function of the shaft mechanism, it is within the scope of the embodiments of the present application. Accordingly, the support assembly 103 involved in the embodiments of the present application can be applicable as long as it is in an electronic device with a foldable function.

[0097] Next, an exemplary design of the rotating shaft mechanism will be described in detail.

[0098] You can continue to refer to Figure 4 In the embodiment of the present application, the first rotating assembly 1011 may include a first swing arm 10111, a first support arm 10112 and a first connecting member 10113. The first connecting member 10113 is located between the first swing arm 10111 and the first support arm 10112, the first connecting member 10113 is rotationally connected to the first swing arm 10111, and the first connecting member 10113 is rotationally connected to the first support arm 10112, so that the first swing arm 10111 and the first support arm 10112 perform mutual pulling motion through the first connecting member 10113. Based on this, it can be understood that the motion trajectory of the first connecting member 10113 plays a key role in the motion trajectory of the first rotating assembly 1011.

[0099] In the present application, the first connecting member 10113 can move relative to the main shaft 102. Figure 5 , Figure 5 The cross-sectional view of the first connecting member 10113 of the rotating shaft mechanism 1 provided in the embodiment of the present application when the electronic device is in the unfolded state. The main shaft 102 may be provided with a first track groove 1023, and the first connecting member 10113 may move along the first track groove 1023, thereby limiting the movement track of the first connecting member 10113.

[0100] Reference Figure 6 , Figure 6 A schematic diagram of the structure of the main shaft 102 provided in an embodiment of the present application. The main shaft 102 may include a base 1021 and a cover plate 1022. The cover plate 1022 is covered on the base 1021, and the outer surface of the cover plate 1022 may serve as the appearance surface of the rotating shaft mechanism. Figure 7 , Figure 7 for Figure 6A schematic diagram of the structure of the base 1021 of the main shaft 102 is shown. The base 1021 may be provided with a first arc groove 10211, and the first arc groove 1021 ... Figure 5 and Figure 7 , the first connecting member 10113 is accommodated in the first arc-shaped groove 10211, and the first connecting member 10113 can slide along the groove surface 102111 of the first arc-shaped groove. Figure 8 , Figure 8 for Figure 6 A schematic diagram of the 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 show the cover plate 1022. The cover plate 1022 includes a first protrusion 10221, such as Figure 5 As shown, the first protrusion 10221 can be arranged 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, and the gap serves as the first track groove 1023 .

[0101] Fig. 9 The cross-sectional view of the first connecting member 10113 of the rotating shaft mechanism 1 provided in the embodiment of the present application when the electronic device is in a closed state can be referred to in conjunction with Figure 5 and Fig. 9 When the electronic device moves from an unfolded state to a closed state, the first connecting member 10113 can move toward the first swing arm 10111 in the first trajectory groove 1023, and when the electronic device moves from a closed state to an unfolded state, the first connecting member 10113 can move toward the first support arm 10112 in the first trajectory groove 1023, so that the first connecting member 10113 can move relative to the main axis 102 according to a set trajectory.

[0102] Refer to Figure 5 and Fig. 9 It can be seen that when the electronic device is in the process of changing from the unfolded state to the closed state, or from the closed state to the unfolded state, the first swing arm 10111 and the first support arm 10112 can rotate around the main axis 102. Because the first swing arm 10111 and the first support arm 10112 are pulled by each other through the first connecting member 10113, the first connecting member 10113 can also rotate relative to the surface 102211 of the first protruding portion and the groove surface 102111 of the first arc groove during the movement in the first track groove 1023, so as to improve the smoothness of the movement of the first rotating component 1011.

[0103] Reference Fig.10 , Fig.10A schematic diagram of the structure of the first connecting member 10113 provided in an embodiment of the present application. In the present application, the first connecting member 10113 may include a first arcuate surface 101133 and a second arcuate surface 101134. In order to realize the rotation of the first connecting member 10113 relative to the surface 102211 of the first protruding portion and the groove surface 102111 of the first arcuate groove, the first arcuate surface 101133 and the second arcuate surface 101134 may be arcuate surfaces, and the center of the first arcuate surface 101133 coincides with the center of the second arcuate surface 101134. The radii of the first arcuate surface 101133 and the second arcuate surface 101134 may be equal or unequal, 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 arc surfaces of other possible shapes such as elliptical arc surfaces, as long as the first connecting member 10113 can be rotated relative to the surface 102211 of the first protrusion and the groove surface 102111 of the first arc groove.

[0104] You can continue to refer to Figure 5 and Fig. 9 , when the electronic equipment is in Figure 5 The expanded state shown and Fig. 9 In the closed state shown, the first arc surface 101133 of the first connecting member 10113 can abut against the surface 102211 of the first protrusion, and the second arc surface 101134 can abut against the groove surface 102111 of the first arc groove, so that the surface 102211 of the first protrusion and the groove surface 102111 of the first arc groove limit the first connecting member 10113 to the first track groove 1023, so that when the hinge mechanism 1 is in the expanded state and the closed state, the position of the first connecting member 10113 is relatively stable and no virtual shaking occurs, so as to improve the reliability of the hinge mechanism 1 in the above two states.

[0105] In this application, the electronic device may be placed in a Figure 5 In the unfolded state shown in FIG. 1 , the distance between the point where the surface 102211 of the first protrusion abuts against the first arc surface 101133 and the point where the groove surface 102111 of the first arc groove abuts against the second arc surface 101134 is denoted as d1. Fig. 9In the closed state shown, the distance between the point where the surface 102211 of the first protrusion abuts against the first arc surface 101133 and the point where the groove surface 102111 of the first arc groove abuts against the second arc surface 101134 is recorded as d2. Since the first arc surface 101133 of the first connector 10113 can abut against the surface 102211 of the first protrusion, and the second arc surface 101134 can abut against the groove surface 102111 of the first arc groove when the electronic device is in the unfolded state and the closed state, when the first arc surface 101133 and the second arc surface 101134 are both arc surfaces, it can be concluded that d1=d2.

[0106] In the present application, the specific configuration of the surface 102211 of the first protruding portion and the groove surface 102111 of the first arc-shaped groove is not limited. For example, the surface 102211 of the first protruding portion can be an arc surface, and the groove surface 102111 of the first arc-shaped groove can be an arc surface. In addition, the center of the surface 102211 of the first protruding portion coincides with the center 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 portion and the groove surface 102111 of the first arc-shaped groove can also be set as planes, so that the first track groove 1023 is a straight groove; or the surface 102211 of the first protruding portion and the groove surface 102111 of the first arc-shaped groove can also be other forms of curved surfaces, so that the first track groove 1023 is a curved groove of any form, which should be understood to fall within the protection scope of the present application.

[0107] You can continue to refer to Figure 5 In the present application, the spacing between the surface 102211 of the first protruding portion and the groove surface 102111 of the first arc-shaped groove can be equal at all places, so that the first track groove 1023 is a groove of 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 102211 of the first protruding portion 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 abutment, so that the movement trajectory of the first connecting member 10113 can be the same in the process of the electronic device from the unfolded state to the closed state, and from the closed state to the unfolded state, which can help improve the stability of the movement of the first connecting member 10113, thereby improving the movement stability of the first rotating component 1011.

[0108] Reference Fig.11 , Fig.11Schematic diagram of the assembly structure of the first connecting member 10113 and the main shaft 102 provided in the embodiment of the present application. In the present application, when the first track groove 1023 is a groove of equal width, and the first arc surface 101133 and the second arc surface 101134 are 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 distance D between the surface 102211 of the first protrusion and the groove surface 102111 of the first arc groove. In addition, considering the smoothness of the movement of the first connecting member 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 protrusion, and / or 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 motion trajectory of the first connecting member 10113 during the process of the electronic device changing from the unfolded state to the closed state may be different from the motion trajectory of the first connecting member 10113 during the process of the electronic device changing from the closed state to the unfolded state. In specific implementation, during 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 portion, and there is a gap between the second arc surface 101134 and the groove surface 102111 of the first arc groove. And during 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 portion. In this embodiment, the gaps at various locations between the surface 102211 of the first protruding portion and the groove surface 102111 of the first arc groove may be unequal, and the first trajectory groove 1023 may be a non-uniform width groove.

[0110] As can be known from the above introduction, in the present application, the first swing arm 10111 can be rotatably connected to the main shaft 102, wherein the first swing arm 10111 and the main shaft 102 can be rotatably connected by means of a virtual axis, which can help reduce the space occupied by the first swing arm 10111 on the main shaft 102, thereby helping to reduce the volume of the rotating module 101, so as to facilitate the miniaturization design of the rotating shaft mechanism 1. In addition, it can be understood that for an outward-folding electronic device, when the first swing arm 10111 is rotatably connected to the main shaft 102 by means of a virtual axis, 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 axis refers to the axis of an arc-shaped structure, and the two rotatably connected parts can rotate relative to the virtual axis, and the position of the virtual axis is fixed as the two rotatably connected parts rotate relative to each other. Fig.12 As shown, Fig.12 for Figure 3 AA cross-sectional view of the structure shown in FIG. The end of the first swing arm 10111 facing the base 1021 may be provided with a first arc-shaped rotating block 101111. Figure 7 , the base 1021 may be provided with a second arc groove 10212. Then the first arc rotating block 101111 may be accommodated in the second arc groove 10212, and the first arc rotating block 101111 may slide along the groove surface of the second arc groove 10212, so that the first swing arm 10111 is rotated around the main shaft 102 by sliding the first arc rotating block 101111 along the arc surface of the second arc groove 10212. In addition, in the present application, the first arc rotating block 101111 may be, but not limited to, a circular arc rotating block, and the second arc groove 10212 may be, but not limited to, a circular arc groove. It can be understood that when the first arc-shaped rotating block 101111 is a circular arc-shaped rotating block, its surface for contacting 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] Can refer to Figure 8 and Fig.12 The cover plate 1022 may include a second protrusion 10222 arranged toward the second arc groove 10212, at least a portion of the first arc-shaped rotating block 101111 is located between the second protrusion 10222 and the second arc groove 10212, and the first arc-shaped rotating block 101111 may contact the surface 102221 of the second protrusion, 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 groove 10212 is an arc surface, the portion of the surface 102221 of the second protruding portion that is used to contact the first arc rotating block 101111 can also be an arc surface, and the centers of the two arc surfaces coincide. In addition, the surface of the first arc rotating block 101111 facing the second protruding portion 10222 can be a plane or an arc surface, as long as the first arc rotating block 101111 can rotate relative to the second protruding portion 10222.

[0114] Please refer to Fig.13 , Fig.13The cross-sectional view of the first swing arm 10111 of the hinge mechanism 1 provided in the embodiment of the present application when the electronic device is in a closed state. In the present application, the first arc-shaped rotating block 101111 may also be provided with a first recessed portion 1011111, and the opening of the first recessed portion 1011111 is arranged toward the cover plate 1022. In addition, the end of the cover plate 1022 facing the first swing arm 10111 may be provided with a first plug-in portion 10223. In the closed state, the first plug-in portion 10223 may 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 against 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 escaping from 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 rotating shaft mechanism 1.

[0115] It is worth mentioning that in the present application, in addition to being rotatably connected to the main shaft 102 by means of a virtual shaft, the first swing arm 10111 can also be rotatably connected by means of 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 by means of 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 member 10113, reference can be made to Fig.10 The first connecting member 10113 may include a first rotating shaft 101131 and a second rotating shaft 101132, and the axis of the first rotating shaft 101131 is parallel to the axis of the second rotating shaft 101132 but does not overlap.

[0117] In addition, refer to Fig.14 , Fig.14 A schematic diagram of the structure of the first rotating assembly 1011 provided in an embodiment of the present application. The first connecting member 10113 is rotatably connected to the first swing arm 10111 via a first rotating shaft 101131, and the first connecting member 10113 is rotatably connected to the first support arm 10112 via a second rotating shaft 101132. Thus, the first swing arm 10111 and the first support arm 10112 can be pulled against each other via the first connecting member 10113.

[0118] Reference Fig.15 , Fig.151 is a schematic diagram of a structure of the first swing arm 10111 provided in an embodiment of the present application. The first arc-shaped rotating block 101111 of the first swing arm 10111 is provided with a first mounting groove 1011112. Fig.12 and Fig.15 , the slot opening of the first mounting groove 1011112 is set toward the second arc-shaped groove 10212, then the first rotating shaft 101131 can be installed in the first mounting groove 1011112, and a portion of the surface of the first rotating shaft 101131 can contact the slot surface of the first mounting groove 1011112, and a portion of the surface of the first rotating shaft 101131 contacts the slot surface of the second arc-shaped groove 10212 to limit the first rotating shaft 101131 to the first mounting groove 1011112.

[0119] You can continue to refer to Fig.12 and Fig.15 , the groove surface of the first installation groove 1011112 may include a first arc surface 10111121, and the surface of the first rotating shaft 101131 for contacting the groove surface of the first installation 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. In addition, referring to Figure 7 , the groove surface of the second arc groove 10212 can be the third arc surface 102121. Fig.12 As shown, the surface of the first rotating shaft 101131 for contacting the groove surface of the second arc groove 10212 may be the fourth arc surface 1011312, and the center of the third arc surface 102121 coincides with the center of the fourth arc surface 1011312. Fig.12 and Fig.13 While the first rotating shaft 101131 slides along the groove surface of the second arc groove 10212 with the first arc-shaped rotating block 101111, the first rotating shaft 101131 can also be rotated 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 the present application, when the first connecting member 10113 is rotatably connected to the first supporting arm 10112, as shown in FIG. Fig.14 As shown, the second rotating shaft 101132 can be simultaneously provided through the first connecting member 10113 and the first supporting arm 10112, so the connection method between the first connecting member 10113 and the first supporting arm 10112 is relatively simple, which is conducive to simplifying the structure of the first rotating assembly 1011, thereby simplifying the structure of the rotating shaft mechanism 1. It is worth mentioning that when the first arc surface 101133 and the second arc surface 101134 of the first connecting member 10113 are both arc surfaces, the center of the first arc surface 101133, the center of the second arc 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 in the embodiment of the present application, the first connecting member 10113 can include a plurality of first sub-connecting members that are rotatably 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 to the adjacent first sub-connecting member, and the first support arm 10112 can be rotatably connected to the adjacent first sub-connecting member. Among them, the manner of rotatably connecting the first swing arm 10111 to the adjacent first sub-connecting member, and the manner of rotatably connecting the first support arm 10112 to the adjacent first sub-connecting member can be specifically set with reference to the above description of the rotatably connecting the first swing arm 10111 and the first support arm 10112 to the first connecting member 10113, and will not be repeated here. In the present application, by setting the first connecting member 10113 as a plurality of first sub-connecting members that are rotatably connected in sequence, so that the first swing arm 10111 and the first support arm 10112 are connected through a plurality of first sub-connecting members, the speed uniformity of the first swing arm 10111 and the first support arm 10112 during the rotation process around the main axis 102 can be effectively improved, so as to enhance the smoothness of the mutual pulling movement of the first swing arm 10111 and the first support arm 10112.

[0122] You can continue to refer to Figure 4 , similar to the structure of the first rotating component 1011, when the second rotating component 1012 is specifically set, the second rotating component 1012 is located between the first shell fixing frame 1013 and the second shell fixing frame 1014. In addition, the second rotating component 1012 may include a second swing arm 10121, a second support arm 10122 and a second connecting member 10123. Among them, 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 rotationally connected to the second swing arm 10121, and the second connecting member 10123 is rotationally connected to the second support arm 10122. In the present application, when the second connecting member 10123 is rotationally connected to the second swing arm 10121 and the first support arm 10112, it can be set with reference to the above-mentioned way of rotationally connecting the first connecting member 10113 with the second swing arm 10121 and the second support arm 10122. Exemplarily, reference can be made to Fig.10 , Fig.10It can also be used to represent the structure of the second connecting member 10123 provided in the embodiment of the present application. The second connecting member 10123 may 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 overlap with the axis of the fourth rotating shaft 101232. Among them, the second connecting member 10123 and the second swing arm 10121 can be rotatably connected through the third rotating shaft 101231, and the second connecting member 10123 and the second support arm 10122 can be rotatably connected through the fourth rotating shaft 101232, so that the second swing arm 10121 and the second support arm 10122 can perform mutual pulling motion through the second connecting member 10123.

[0123] In addition, refer to Figure 6 , the spindle 102 may be provided with a second track groove 1024, and the second connecting member 10123 may move along the second track groove, thereby limiting the movement track of the second connecting member 10123. Figure 7 The base 1021 may be provided with a third arc groove 10213, the second connecting member 10123 is accommodated in the third arc groove 10213, and the second connecting member 10123 can slide along the groove surface of the third arc groove 10213. Figure 8 The cover plate 1022 includes a third protrusion 10224, which can be directed toward Figure 7 The third arc groove 10213 of the middle base 1021 is set, and there is a gap between the surface 102241 of the third protrusion and the groove surface 102131 of the third arc groove, and the gap serves as the second track groove 1024.

[0124] In this application, if Fig.10 As shown, the second connecting member 10123 may include a third arcuate surface 101233 and a fourth arcuate surface 101234. When the electronic device is in the unfolded state and the closed state, the third arcuate surface 101233 of the second connecting member 10123 may abut against the surface 102241 of the third protruding portion, and the fourth arcuate surface 101234 abuts against the groove surface 102131 of the third arcuate groove, so that the surface 102241 of the third protruding portion and the groove surface 102131 of the third arcuate groove limit the second connecting member 10123 to the second track groove 1024, so that when the rotating shaft mechanism 1 is in the unfolded state and the closed state, the position of the second connecting member 10123 is relatively stable, 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 embodiment of the present application, the third arc surface 101233 of the second connecting member 10123 can be set with reference to the first arc surface 101133 of the first connecting member 10113, and the fourth arc surface 101234 can be set with reference to the second arc surface 101134 of the first connecting member 10113, which will not be described in detail here. In addition, the second track groove 1024 can be specifically set with reference to the first track groove 1023. In short, the spacing between the surface 102241 of the third protruding portion and the groove surface 102131 of the third arc groove is equal at all places, so that the second track groove 1024 is a groove of equal width. At this time, in 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 102241 of the third protruding portion 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 abutment. Thus, in 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 movement track of the second connecting member 10123 in the second track groove 1024 is the same. Alternatively, in the process of the electronic device changing from the unfolded state to the closed state, the third arc surface 101233 abuts against the surface 102241 of the third protruding portion, 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 changing 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 portion, so that the movement track of the second connecting member 10123 in the process of the electronic device changing from the unfolded state to the closed state is different from the movement track of the second connecting member 10123 in the process of the electronic device changing from the closed state to the unfolded state.

[0126] In the present application, the second swing arm 10121 is rotatably connected to the main shaft 102. The second swing arm 10121 and the main shaft 102 can be rotatably connected by a virtual axis. Figure 7 As shown, the base 1021 may be provided with a fourth arc groove 10214. Figure 4 and Fig.15 , Fig.15It can also be used to demonstrate the structure of the second swing arm 10121. The second swing arm 10121 is provided with a second arc-shaped rotating block 101211 at one end facing the base 1021, wherein the second arc-shaped rotating block 101211 may be, but not limited to, a circular arc-shaped rotating block, and the fourth arc-shaped groove 10214 may be, but 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, so that the second swing arm 10121 can be rotated around the base 1021 by sliding the second arc-shaped rotating block 101211 along the groove surface of the fourth arc-shaped groove 10214. This can help reduce the space occupied by the second swing arm 10121 on the main shaft 102, thereby helping to reduce the volume of the rotating module 101, so as to facilitate the miniaturization design of the rotating shaft mechanism 1. It can be understood that, for an outward-folding electronic device, when the second swing arm 10121 is rotationally connected to the main shaft 102 via a virtual axis, the axis of rotation of the second swing arm 10121 around the main shaft 102 is located on the side of the hinge mechanism away from the flexible display screen.

[0127] In addition, in the present application, the second arc-shaped rotating block 101211 may be, but not limited to, a circular arc-shaped rotating block, and the fourth arc-shaped groove 10214 may be, but not limited to, a circular arc-shaped groove. It is understandable that when the second arc-shaped rotating block 101211 is a circular arc-shaped rotating block, its surface for contacting the groove surface of the fourth arc-shaped groove 10214 may be a circular arc surface, and the groove surface of the fourth arc-shaped groove 10214 is also a circular arc surface, and the centers of the two circular arc surfaces coincide.

[0128] In the present application, in order to improve the stability of the second swing arm 10121 rotating around the main axis 102. Figure 8 As shown, the cover plate 1022 further includes a fourth protrusion 10225 disposed toward the fourth arc groove 10214, at least a portion of the second arc-shaped rotating block 101211 is located between the fourth protrusion 10225 and the fourth arc groove 10214, and the surface of the second arc-shaped rotating block 101211 facing the fourth protrusion 10225 can contact the surface 102251 of the fourth protrusion, so that 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 second arc-shaped rotating block 101211 relative to the base 1021. In addition, when the groove surface of the fourth arc groove 10214 is an arc surface, the portion of the surface 102251 of the fourth protrusion that is used to contact the second arc-shaped rotating block 101211 can also be an arc surface, and the centers of the two arc surfaces coincide. In the present application, the surface of the second arc-shaped rotating block 101211 facing the fourth protrusion 10225 can be a plane or an arc surface, as long as the second arc-shaped rotating block 101211 can rotate relative to the fourth protrusion 10225 while sliding 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 may also be provided with a second recessed portion 1012111, and the opening of the second recessed portion 1012111 is arranged toward the cover plate 1022. In addition, the end of the cover plate 1022 facing the second housing fixing frame 1014 may be provided with a second plug-in portion. In this closed state, the second plug-in portion may 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 against 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, thereby preventing the second arc-shaped rotating block 101211 from coming out of the fourth arc-shaped groove 10214.

[0130] 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 second swing arm 10121 can also be rotatably connected through a solid shaft, which can make the connection between the first swing arm 10111 and the main shaft 102 more reliable. For an outward-folding electronic device, when the second swing arm 10121 is rotatably 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 rotating shaft mechanism away from the flexible display screen.

[0131] When the second connecting member 10123 is rotatably connected to the second swing arm 10121 through the third rotating shaft 101231, the following can be referred to: Fig.15 The second arc-shaped rotating block 101211 is provided with a second mounting groove 1012112, and the groove opening of the second mounting groove 1012112 is arranged toward the fourth arc-shaped groove 10214. Then, the third rotating shaft 101231 can be installed in the second mounting groove 1012112, and a part of the surface of the third rotating shaft 101231 can contact the groove surface of the second mounting groove 1012112, and a part of the surface of the third rotating shaft 101231 contacts the groove surface of the fourth arc-shaped groove 10214, so as to limit the third rotating shaft 101231 to the second mounting groove 1012112.

[0132] like Fig.15 As shown, in the present application, the groove surface of the second installation groove 1012112 may include a fifth arc surface 10121121, and as shown in Fig.10The surface of the third rotating shaft 101231 used for contacting the groove surface of the second installation groove 1012112 is the sixth arc surface 1012311, and the center of the fifth arc surface 10121121 coincides with the center of the sixth arc surface 1012311. In addition, the groove surface of the fourth arc groove 10214 is the seventh arc surface 102141, and the surface of the third rotating shaft 101231 used for contacting the groove surface of the fourth arc groove 10214 may be the eighth arc surface 1012312, then the center of the seventh arc surface 102141 coincides with the center of the eighth 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 member 10123 relative to the main shaft 102.

[0133] In the embodiment of the present application, when the second connecting member 10123 and the second support arm 10122 are rotatably connected via the fourth rotating shaft 101232, the fourth rotating shaft 101232 can be simultaneously passed through the second connecting member 10123 and the second support arm 10122. The connection method between the second connecting member 10123 and the second support arm 10122 is relatively simple, which is conducive to simplifying the structure of the second rotating component 1012, thereby simplifying the structure of the rotating shaft mechanism 1.

[0134] It is understandable that in the rotating shaft mechanism 1 provided in the embodiment of the present application, the second connecting member 10123 may include a plurality of second sub-connecting members that are rotatably connected in sequence. In addition, the plurality of second sub-connecting members may be located between the second swing arm 10121 and the second support arm 10122, and the second swing arm 10121 may be rotatably connected to the adjacent second sub-connecting member, and the second support arm 10122 may be rotatably connected to the adjacent second sub-connecting member. Among them, the manner of rotatably connecting the second swing arm 10121 to the adjacent second sub-connecting member, and the manner of rotatably connecting the second support arm 10122 to the adjacent second sub-connecting member may be specifically set with reference to the above description of the rotatably connecting the second swing arm 10121 and the second support arm 10122 to the second connecting member 10123, and will not be described in detail here. In the present application, by setting the second connecting member 10123 as a plurality of second sub-connecting members that are rotatably connected in sequence, so that the second swing arm 10121 and the second support arm 10122 are rotatably connected through a plurality of second sub-connecting members, the speed uniformity of the second swing arm 10121 and the second support arm 10122 during the rotation around the main axis 102 can be effectively improved, so as to enhance the smoothness of the mutual pulling movement of the second swing arm 10121 and the second support arm 10122.

[0135] You can continue 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 to the first shell fixing frame 1013. In a specific implementation, the first shell fixing frame 1013 is provided with a first slide groove 10131. The first slide groove 10131 extends along a first direction, and the first swing arm 10111 can be installed in the first slide groove 10131 and can slide in the first slide groove 10131 along a first direction. The first direction can be the direction in which the first shell fixing frame 1013 moves toward or away from the base 1021. In addition, in order to prevent the first swing arm 10111 from falling off from the first slide groove 10131, a first slideway can be provided on the groove wall of the first slide groove 10131, and a first slider can be provided on the first swing arm 10111. In this way, the first slider can be clamped in the first slideway and can slide along the first slideway to limit the first swing arm 10111 in the first slide groove 10131. In addition, by arranging the first slideway on the groove wall of the first slide groove 10131, it can provide a guide for the first swing arm 10111 to slide along the first slide 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 to the second housing fixing frame 1014. Figure 4 The second housing fixing frame 1014 has a second mounting portion 10142. The end of the first support arm 10112 facing the second housing fixing frame 1014 is mounted on the second mounting portion 10142, and the end of the first support arm 10112 facing the second housing fixing frame 1014 is rotatably connected to the second mounting portion 10142.

[0137] In the embodiment of the present application, the specific manner in which the end of the first support arm 10112 facing the second housing fixing frame 1014 is rotatably connected to the second mounting portion 10142 is not limited. Figure 4 The second mounting portion 10142 may be provided with a first mounting hole, and the end of the first support arm 10112 facing the second shell fixing frame 1014 may be provided with a second mounting hole, then the end of the first support arm 10112 facing the first shell fixing frame 1013 may be rotatably connected to the second mounting portion 10142 via a rotating shaft that passes through both the first mounting hole and the second mounting hole.

[0138] Reference Fig.16 , Fig.16The schematic diagram of the motion mechanism of the hinge mechanism provided in the embodiment of the present application. Based on the hinge mechanism 1 provided in the above embodiment of the present application, when the electronic device changes from the unfolded state to the closed state, the first shell fixing frame 1013 and the second shell fixing frame 1014 move toward each other, and when the first shell fixing frame 1013 drives the first swing arm 10111 to rotate clockwise around the main shaft 102, the first swing arm 10111 can slide along the groove surface of the second arc groove 10212, thereby driving the first connecting member 10113 to move toward the first swing arm 10111 in the first track groove 1023 of the main shaft 102. Because the first connecting member 10113 is rotatably connected to the first support arm 10112, the first connecting member 10113 can drive the first support arm 10112 to rotate counterclockwise around the main shaft 102 during the process of moving toward the first swing arm 10111 in the first track groove 1023 of the main shaft 102, thereby driving the second shell fixing frame 1014 to rotate counterclockwise around the main shaft 102 through the first support arm 10112. When the electronic device moves from a closed state to an unfolded state, the first shell fixing frame 1013 and the second shell fixing frame 1014 move in opposite directions. When the first shell fixing frame 1013 drives the first swing arm 10111 to rotate counterclockwise around the main axis 102, the first swing arm 10111 can drive the first connecting member 10113 to move toward the first support arm 10112 in the first track groove 1023 of the main axis 102, thereby driving the first support arm 10112 to rotate clockwise around the main axis 102, so as to drive the second shell fixing frame 1014 to rotate clockwise around the main axis 102 through the first support arm 10112, thereby realizing the folding and unfolding functions of the hinge mechanism 1.

[0139] Through the above structural relationship, the cross section of the first connecting member 10113 can be made smaller so as to shuttle in the first track groove 1023 of the main shaft 102. At the same time, since the first connecting member 10113 has a sufficient length to extend in the direction perpendicular to the axis and is respectively connected to the first swing arm 10111 and the first support arm 10112, the reliability of the rotating shaft mechanism 1 can be guaranteed. In this way, the thickness of the main shaft 102 and the thickness of the whole machine can be reduced, and the reliability of the rotating shaft mechanism 1 can be maintained, making the entire rotating shaft mechanism 1 thin and reliable.

[0140] In addition, since the first connecting member 10113 can move along a set track in the first track groove 1023, it is possible to avoid uncontrolled movement of the first connecting member 10113 during the entire folding and unfolding process, thereby avoiding random movement of the first shell fixing frame 1013 and the second shell fixing frame 1014, thereby ensuring the structural and motion stability of the entire hinge mechanism 1. In some cases, by reasonably designing the first track groove 1023, the outer tangent of the hinge mechanism 1 can also maintain a constant length during the entire folding and unfolding process, thereby allowing the flexible display screen covering the surface of the hinge mechanism 1 to basically maintain a constant length, thus effectively avoiding squeezing or pulling on the flexible display screen, thereby improving the structural reliability of the flexible display screen, and thereby improving the structural reliability of the electronic device.

[0141] Can refer to again Figure 4 In the embodiment of the present application, the second swing arm 10121 can be slidably connected with the second housing fixing frame 1014. In specific implementation, the second housing fixing frame 1014 is provided with a second slide groove 10141. Along the axial direction of the rotating shaft mechanism 1, the second slide groove 10141 is spaced apart from the second mounting portion 10142. The second slide groove 10141 extends along the second direction. The second swing arm 10121 can be installed in the second slide groove 10141 and can slide in the second slide groove 10141 along the second direction. The second direction can be the direction in which the second housing fixing frame 1014 moves toward or away from the base 1021. In addition, in order to prevent the second swing arm 10121 from falling off from the second slide groove 10141, a second slideway can be provided on the groove wall of the second slide groove 10141, and a second slider can be provided on the second swing arm 10121. In this way, the second slider can be clamped in the second slideway and can slide along the second slideway to limit the second swing arm 10121 in the second slide groove 10141. In addition, by arranging the second slideway on the groove wall of the second slide groove 10141, it can provide a guide for the second swing arm 10121 to slide along the second slide groove 10141, thereby improving the stability of the movement of the second swing arm 10121.

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

[0143] In the embodiment of the present application, the specific manner in which the end of the second support arm 10122 facing the first housing fixing frame 1013 is rotatably connected to the first mounting portion 10132 is not limited. Figure 4 The first mounting portion 10132 may be provided with a third mounting hole, and the end of the second support arm 10122 facing the first shell fixing frame 1013 may be provided with a fourth mounting hole, then the end of the second support arm 10122 facing the first shell fixing frame 1013 may be rotatably connected to the first mounting portion 10132 via a rotating shaft that is simultaneously provided through the third mounting hole and the fourth mounting hole.

[0144] Based on the hinge mechanism 1 provided in the above embodiment of the present application, when the electronic device changes from the unfolded state to the closed state, the first housing fixing frame 1013 and the second housing fixing frame 1014 move toward each other, and when the second housing fixing frame 1014 drives the second swing arm 10121 to rotate counterclockwise around the main shaft 102, the second swing arm 10121 can drive the second connecting member 10123 to move toward the second swing arm 10121 in the second track groove 1024 of the main shaft 102. Because the second connecting member 10123 is rotatably connected to the second support arm 10122, when the second connecting member 10123 moves toward the second swing arm 10121 in the second track groove 1024 of the main shaft 102, the second support arm 10122 can be driven to rotate clockwise around the main shaft 102, thereby driving the first housing fixing frame 1013 to rotate clockwise around the main shaft 102 through the second support arm 10122. When the electronic device moves from the closed state to the unfolded state, the first housing fixing frame 1013 and the second housing fixing frame 1014 move in opposite directions. When the second housing fixing frame 1014 drives the second swing arm 10121 to rotate clockwise around the main axis 102, the second swing arm 10121 can drive the second connecting member 10123 to move toward the second support arm 10122 in the second track groove 1024 of the main axis 102, and can drive the second support arm 10122 to rotate counterclockwise around the main axis 102, and the first housing fixing frame 1013 is driven to rotate counterclockwise around the main axis 102 through the second support arm 10122. Thus, the folding and unfolding functions of the hinge mechanism 1 are realized.

[0145] Through the above structural relationship, the cross section of the second connecting member 10123 can be made smaller so as to shuttle in the second track groove 1024 of the main shaft 102. At the same time, since the second connecting member 10123 has a sufficient length to extend in the direction perpendicular to the axis and is connected to the second swing arm 10121 and the second support arm 10122 respectively, the reliability of the rotating shaft mechanism 1 can be ensured. In this way, the thickness of the main shaft 102 and the thickness of the whole machine can be reduced, and the reliability of the rotating shaft mechanism 1 can be maintained, making the entire rotating shaft mechanism 1 thin and reliable.

[0146] Since the second connecting member 10123 can move along a set track, it is possible to avoid uncontrolled movement of the second connecting member 10123 during the entire folding and unfolding process, thereby avoiding random movement of the first shell fixing frame 1013 and the second shell fixing frame 1014, thereby ensuring the structural and movement stability of the entire hinge mechanism 1. In some cases, by reasonably designing the second track groove 1024, the outer tangent of the hinge mechanism 1 can also maintain a constant length during the entire folding and unfolding process, thereby allowing the flexible display screen covering the surface of the hinge mechanism 1 to basically maintain a constant length, thus effectively avoiding squeezing or pulling on the flexible display screen, thereby improving the structural reliability of the flexible display screen, and thereby improving the structural reliability of the electronic device.

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

[0148] Fig.17 This is a partial structural diagram of the rotating shaft mechanism 1 provided in the embodiment of the present application. Figure 4 and Fig.17 As shown, in the embodiment of the present application, the support assembly 103 may include a first support portion 1031, a second support portion 1032 and a third support portion 1033. The first support portion 1031 may be arranged at the end of the first housing fixing frame 1013 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 fixing frame 1013 close to the base 1021; the second support portion 1032 may be arranged at the end of the second housing fixing frame 1014 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 fixing frame 1014 close to the base 1021; the third support portion 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 portion 1033 is located between the first support portion 1031 and the second support portion 1032.

[0149] Fig.18 This is a schematic diagram of the structure of the first support portion 1031 and the second support portion 1032 provided in an embodiment of the present application. Fig.19 This is a schematic diagram of the structure of the third support portion 1033 provided in the embodiment of the present application. Figures 17 to 19 The first support portion 1031 may be provided with a first protrusion 10311 and a first groove 10312, the second support portion 1032 may be provided with a second protrusion 10321 and a second groove 10322, and accordingly, the third support portion 1033 may be provided with a third protrusion 10331 and a third groove 10332 on a side close to the first shell fixing frame 1013, and the third support portion 1033 may be provided with a fourth protrusion 10333 and a fourth groove 10334 on a side close to the second shell fixing frame 1014.

[0150] Fig. 20 Schematic diagram of the relative position relationship of the first support part 1031, the second support part 1032, and the third support part 1033 of the rotating shaft mechanism provided in the embodiment of the present application in the unfolded state. Fig.17 and Fig. 20 As shown, in the embodiment of the present application, when the hinge mechanism 1 is in the unfolded state, the third protrusion 10331 of the third support portion 1033 is limited to the first groove 10312 of the first support portion 1031, and the fourth protrusion 10333 of the third support portion 1033 is limited to the second groove 10322 of the second support portion 1032. In this way, through the cooperation between the third protrusion 10331 and the first groove 10312, and the cooperation between the fourth protrusion 10333 and the second groove 10322, the first support portion 1031, the second support portion 1032 and the third support portion 1033 can be at least horizontally positioned, reducing the risk of lateral displacement of the first support portion 1031 and the second support portion 1032, thereby reducing the risk of lateral misalignment of the first shell fixing frame 1013, the second shell fixing frame 1014 and the base 1021 in the unfolded state. The horizontal direction may be understood as the arrangement direction of the first shell fixing frame 1013 and the second shell fixing frame 1014 on both sides of the base 1021 .

[0151] Fig.21 Schematic diagram of the relative position relationship of the first support part 1031, the second support part 1032, and the third support part 1033 of the rotating shaft mechanism provided in the embodiment of the present application in the closed state. Fig.17 and Fig.21 As shown, when the hinge mechanism 1 is in a closed state, the first protrusion 10311 of the first support portion 1031 is limited to the third groove 10332 of the third support portion 1033, and the second protrusion 10321 of the second support portion 1032 is limited to the fourth groove 10334 of the third support portion 1033. In this way, through the cooperation between the first protrusion 10311 and the third groove 10332, and the cooperation between the second protrusion 10321 and the fourth groove 10334, the first support portion 1031 and the second support portion 1032 can be at least horizontally positioned, reducing the risk of lateral displacement of the first support portion 1031 and the second support portion 1032, thereby reducing the risk of lateral misalignment of the first shell fixing frame 1013, the second shell fixing frame 1014 and the base 1021 in the closed state.

[0152] In addition, it should be understood that the mating surface between the groove and the protrusion is not a plane. Taking the mating 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 between the first groove 10312 and the third protrusion 10331 is a curved surface composed of multiple planes facing different directions. Correspondingly, the contact surface between the third protrusion 10331 and the first groove 10312 also includes multiple planes facing different directions, and each plane of the third protrusion 10331 is respectively abutted against each plane of the first groove 10312, forming a limit for the first support portion 1031 in multiple directions including the horizontal direction, thereby effectively limiting the freedom of the first support portion 1031 in multiple directions, that is, limiting the freedom of the first shell fixing frame in multiple directions. However, the hinge mechanism in the prior art does not have a related supporting structure. When the electronic device using such a hinge mechanism falls or hits, its housing fixing frame is easily displaced relative to the main shaft, thereby causing misalignment. Compared with the prior art, the hinge mechanism provided in the embodiment of the present application utilizes the cooperation of the protrusion and the groove, so that the electronic device using the hinge mechanism can effectively reduce the risk of misalignment between the housing fixing frame and the main shaft when the electronic device falls or hits, and improve the structural stability of the hinge mechanism.

[0153] For reference Figures 19 to 21 In an embodiment of the present application, the third support portion 1033 may include a main body 10335 and a baffle 10336, wherein the baffle 10336 may be located on a side of the main body 10335 away from the base, and the third protrusion 10331, the third groove 10332 and the fourth protrusion 10333, the fourth groove 10334 are all arranged on the main body 10335. A plane perpendicular to the axial direction of the rotating shaft mechanism is defined as the first plane. When the rotating shaft mechanism is in the expanded state, the projection of the baffle 10336 on the first plane covers at least part of the projection of the first support part 1031 on the first plane, and covers at least part of the projection of the second support part 1032 on the first plane. That is to say, the baffle 10336 overlaps with the first support part 1031 and the second support part 1032 in the axial direction perpendicular to the rotating shaft mechanism. Through this design, the first support part 1031 and the second support part 1032 can be positioned in the axial direction, reducing the wind direction of the axial displacement of the first support part 1031 and the second support part 1032, thereby reducing the risk of axial misalignment of the first shell fixing frame, the second shell fixing frame and the base in the expanded state.

[0154] Similarly, when the hinge mechanism is in the closed state and in the process of switching between the expanded state and the closed state, the projection of the baffle 10336 on the first plane can also cover at least a portion of the projection of the first support portion 1031 on the first plane, and cover at least a portion of the projection of the second support portion 1032 on the first plane, thereby reducing the risk of axial misalignment between the first shell fixing frame, the second shell fixing frame and the base during the closing state of the hinge mechanism and in the process of switching between the expanded state and the closed state.

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

[0156] Continue to refer Figures 19 to 21 In some embodiments, the groove wall of the first groove 10312 may include a first concave surface 103121, and accordingly, the surface of the third protrusion 10331 may include a third convex surface 103311 that is consistent with the shape of the first concave surface 103121. This can increase the adaptability of the surface of the third protrusion 10331 and the groove wall of the first groove 10312, thereby preventing the third protrusion 10331 from moving in the first groove 10312, thereby further reducing the risk of misalignment of the first shell fixing frame relative to the base in the expanded state.

[0157] Exemplarily, the first concave surface 103121 and the third convex surface 103311 include 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 first concave surface 103121 may include a first inclined surface 1031211, and the third convex surface 103311 may include a third inclined surface 1033111, and along the direction from the third protrusion 10331 to the fourth protrusion 10333 (i.e., the lateral direction from the first shell fixing frame to the second shell fixing frame), the third inclined surface 1033111 of the third convex surface 103311 may gradually tilt away from the supporting surface of the main shaft, and when the electronic device is in the unfolded state, the third protrusion 10331 is limited in the first groove 10312, and the third inclined surface 1033111 of the third convex surface 103311 is parallel to the first inclined surface 1031211 of the first concave surface 103121 and abuts against each other. If the electronic device falls or hits in the unfolded state, the cooperation between the first groove 10312 and the third protrusion 10331 can not only realize the lateral positioning of the first support part 1031, but also the third inclined surface 1033111 of the third convex surface 103311 can effectively limit the movement of the first support part 1031 toward the supporting surface of the main axis, that is, limit the movement of the first shell fixing frame toward the direction of the flexible display screen, thereby avoiding the first shell fixing frame from squeezing 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 includes a second concave surface 103221, and accordingly, the surface of the fourth protrusion 10333 may include a fourth convex surface 103331 that is consistent with the shape of the second concave surface 103221. This can increase the adaptability of the surface of the fourth protrusion 10333 and the groove wall of the second groove 10322, thereby preventing the fourth protrusion 10333 from moving in the second groove 10322, thereby further reducing the risk of misalignment of the second shell fixing frame relative to the base in the expanded state.

[0159] Similarly, the second concave surface 103221 and the fourth convex surface 103331 include 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 concave surface 103221 may include a second inclined surface 1032211, and the fourth convex surface 103331 may include a fourth inclined surface 1033311. Along the direction in which the fourth protrusion 10333 points to the third protrusion 10331 (i.e., the lateral direction in which the second shell fixing frame points to the first shell fixing frame), the fourth inclined surface 1033311 of the fourth convex surface 103331 gradually tilts away from the supporting surface of the main shaft. 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 surface 103331 is parallel to the second inclined surface 1032211 of the second concave surface 103221 and abuts against each other. If the electronic device falls or hits in the unfolded state, the cooperation between the second groove 10322 and the fourth protrusion 10333 can not only realize the lateral positioning of the second support part 1032, but also the fourth inclined surface 1033311 of the fourth convex surface 103331 can effectively limit the movement of the second support part 1032 toward the supporting surface of the main axis, that is, limit the movement of the second shell fixing frame toward the direction of the flexible display screen, thereby avoiding the second shell fixing frame from squeezing the flexible display screen and reducing the risk of damage to the flexible display screen.

[0160] In some embodiments, the groove wall of the third groove 10332 may include a third concave surface 103321, and accordingly, the surface of the first protrusion 10311 may include a first convex surface 103111 that is consistent with the shape of the third concave surface 103321. This can increase the adaptability of the surface of the first protrusion 10311 and the groove wall of the third groove 10332, thereby preventing the first protrusion 10311 from moving in the third groove 10332, thereby further reducing the risk of misalignment of the first shell fixing frame relative to the base in a closed state.

[0161] Exemplarily, the third concave surface 103321 and the first convex surface 103111 include 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 first convex surface 103111 may include a first inclined surface 1031111, and correspondingly, the third concave surface 103321 may include a third inclined surface 1033211, along the direction of the third groove 10332 pointing to the fourth groove 10334 (i.e., the lateral direction of the first shell fixing frame pointing to the second shell fixing frame), the third inclined surface 1033211 of the third concave surface 103321 may gradually tilt toward the supporting surface of the main shaft, when the electronic device is in a closed state, the first protrusion 10311 is limited in the third groove 10332, and the first inclined surface 1031111 of the first convex surface 103111 is parallel to the third inclined surface 1033211 of the third concave surface 103321 and abuts against each other. If the electronic device falls or hits in a closed state, the third inclined surface 1033211 of the third concave surface 103321 can effectively limit the first support portion 1031 from moving away from the third support portion 1033, that is, limit the first shell fixing frame from moving away from the main axis, thereby reducing the risk of failure of other components due to the outward expansion of the first shell fixing frame.

[0162] It should be noted that, for the first support portion 1031, the first convex surface 103111 of the first protrusion 10311 and the first concave surface 103121 of the first groove 10312 can be adjacent to 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 surface 103111 and the first inclined surface 1031211 of the first concave surface 103121 can be the same inclined surface. This design is conducive to simplifying the external structure of the first support portion 1031, thereby reducing the difficulty of processing the first support portion.

[0163] Similarly, the groove wall of the fourth groove 10334 may include a fourth concave surface 103341, and accordingly, the surface of the second protrusion 10321 may include a second convex surface 103211 that is consistent with the shape of the fourth concave surface 103341. This can increase the adaptability of the surface of the second protrusion 10321 and the groove wall of the fourth groove 10334, avoid the second protrusion 10321 from moving in the fourth groove 10334, and further reduce the risk of misalignment of the second shell fixing frame relative to the base in the closed state.

[0164] Similarly, the fourth concave surface 103341 and the second convex surface 103211 include 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 surface 103211 may include a second inclined surface 1032111, and the fourth concave surface 103341 may include a fourth inclined surface 1033411, along the direction of the fourth groove 10334 pointing to the third groove 10332 (i.e., the lateral direction of the second shell fixing frame pointing to the first shell fixing frame), the fourth inclined surface 1033411 of the fourth concave surface 103341 may gradually tilt toward the supporting surface of the main shaft, and when the electronic device is in a closed state, the second protrusion 10321 is limited in the fourth groove 10334, and the second inclined surface 1032111 of the second convex surface 103211 is parallel to the fourth inclined surface 1033411 of the fourth concave surface 103341 and abuts against each other. If the electronic device falls or hits in a closed state, the fourth inclined surface 1033411 of the fourth concave surface 103341 can effectively limit the second support portion 1032 from moving away from the third support portion 1033, that is, limit the second shell fixing frame from moving away from the main axis, thereby reducing the risk of failure of other components due to the outward expansion of the second shell fixing frame.

[0165] It should be noted that, for the second support portion 1032, the second convex surface 103211 of the second protrusion 10321 and the second concave surface 103221 of the second groove 10322 can be adjacent to 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 surface 103211 and the second inclined surface 1032211 of the second concave surface 103221 can be the same inclined surface. This design is conducive to simplifying the external structure of the second support portion 1032, thereby reducing the difficulty of processing the second support portion 1032.

[0166] For reference Figures 19 to 21As 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 a first connecting arc surface 10337. In this way, when the rotating shaft mechanism switches from the expanded state to the closed state, driven by the first shell fixing frame, the first protrusion 10311 of the first support portion 1031 can smoothly transition to the third groove 10332 of the third support portion 1033 under the guidance of the first connecting arc surface 10337, thereby reducing the risk of the first support portion 1031 and the third support portion 1033 getting stuck during the switching process, thereby improving the smoothness of the rotation of the first shell fixing frame relative to the base. On the contrary, when the hinge mechanism switches from a closed state to an expanded state, driven by the first shell fixing frame, the first groove 10312 of the first support portion 1031 can smoothly transition to the periphery of the third protrusion 10331 of the third support portion 1033 under the guidance of the first connecting arc surface 10337, so as to accommodate the third protrusion 10331 therein, thereby reducing the risk of jamming between the first support portion 1031 and the third support portion 1033 during the switching process, thereby 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 a second connecting arc surface 10338. In this way, when the rotating shaft mechanism switches from the expanded state to the closed state, driven by the second shell fixing frame, the second protrusion 10321 of the second support part 1032 can smoothly transition to the fourth groove 10334 of the third support part 1033 under the guidance of the second connecting arc surface 10338, thereby reducing the risk of the second support part 1032 and the third support part 1033 getting stuck during the switching process, thereby improving the smoothness of the rotation of the second shell fixing frame relative to the base. On the contrary, when the hinge mechanism switches from a closed state to an expanded state, driven by the second shell fixing frame, the second groove 10322 of the second support portion 1032 can smoothly transition to the periphery of the fourth protrusion 10333 of the third support portion 1033 under the guidance of the second connecting arc surface 10338, so as to accommodate the fourth protrusion 10333 inside, thereby reducing the risk of jamming between the second support portion 1032 and the third support portion 1033 during the switching process, thereby improving the smoothness of the rotation of the second shell fixing frame relative to the base.

[0168] It can be seen that through the above structural design, when the electronic device is in the unfolded state and the closed state, the third support portion 1033 can achieve concave-convex cooperation with the first support portion 1031 and the second support portion 1032, thereby limiting the relative position 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 some other embodiments, by changing the positional relationship between the first protrusion 10311 and the first groove 10312 of the first support portion 1031 relative to the flexible display screen, the positional relationship between the third protrusion 10331 and the third groove 10332 of the third support portion 1033 relative to the flexible display screen, and changing the positional relationship between the second protrusion 10321 and the second groove 10322 of the second support portion 1032 relative to the flexible display screen, and the positional relationship between the fourth protrusion 10333 and the fourth groove 10334 of the third support portion 1033 relative to the flexible display screen, the first support portion 1031 and the third support portion 1033, as well as the second support portion 1032 and the third support portion 1033 may adopt a matching relationship opposite to that in the aforementioned embodiments. For example, when the hinge mechanism is in the unfolded state, the first protrusion 10311 of the first support portion 1031 is limited to the third groove 10332 of the third support portion 1033, and the second protrusion 10321 of the second support portion 1032 is limited to the fourth groove 10334 of the third support portion 1033; when the hinge mechanism is in the closed state, the third protrusion 10331 of the third support portion 1033 is limited to the first groove 10312 of the first support portion 1031, and the fourth protrusion 10333 of the third support portion 1033 is limited to the second groove 10322 of the second support portion 1032. This design can also define the relative relationship between the first shell fixing frame and the second shell fixing frame and the base, and the details will not be repeated here.

[0170] Please refer again Fig.17 In the embodiment of the present application, the first support portion 1031 and the first housing fixing frame 1013 may be an integral structure, that is, the first support portion 1031 may be directly formed at the end of the first housing fixing frame 1013, thereby improving the connection strength between the first support portion 1031 and the first housing fixing frame 1013 and reducing the assembly difficulty of the shaft mechanism 1. Of course, in some other embodiments, the first support portion 1031 and the first housing fixing frame 1013 may also be fixedly connected by welding, bonding, etc. This split design helps to simplify the processing difficulty of the first support portion 1031 and the first housing fixing frame 1013.

[0171] Similarly, the second support portion 1032 and the second shell fixing frame 1014 can be designed in an integrated manner or in a split manner; and the third support portion 1033 and the base 1021 can be designed in an integrated manner or in a split manner.

[0172] In addition, 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 fixing frame 1013 along the axial direction of the rotating shaft mechanism 1, the two second support parts 1032 can be respectively arranged at the two ends of the second shell fixing frame 1014 along the axial direction of the rotating 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 rotating shaft mechanism 1. In this way, the support component 103 can limit the first shell fixing frame 1013 and the second shell fixing frame 1014 at both ends of the rotating shaft mechanism 1, thereby further reducing the risk of misalignment between the first shell fixing frame 1013 and the first shell, and the second shell fixing frame 1014 and the second shell relative to the base, and improving the structural reliability of the electronic device in the falling or impact scenario.

[0173] Fig. 22 This is a schematic diagram of the structure of another electronic device provided in an embodiment of the present application. Fig. 22 As shown, in the embodiment of the present application, the electronic device includes a hinge mechanism 1, a first shell 2 and a second shell 3. Similar to the above-mentioned embodiment, the hinge mechanism may include a base 1021, a first shell fixing frame 1013, a second shell fixing frame 1014 and one or more rotating modules, the first shell fixing frame 1013 is fixedly connected to the first shell 2, the second shell fixing frame 1014 is fixedly connected to the second shell 3, each rotating module may include a first rotating component and a second rotating component, the specific structure of the first rotating component and the second rotating component, and the connection method of the first rotating component and the first shell fixing frame 1013, and the connection method of the second rotating component and the second shell fixing frame 1014 can all refer to the above-mentioned Figures 4 to 16 The configuration is performed in the embodiment shown and will not be repeated here.

[0174] In the embodiment of the present application, the electronic device may also include a support assembly 103, and the support assembly 103 includes a first support portion 1031, a second support portion 1032, and a third support portion 1033. Different from the above-mentioned embodiment, in the present embodiment, the first support portion 1031 and the second support portion 1032 are no longer arranged on the first housing fixing frame 1013 and the second fixing frame 1014 of the hinge mechanism 1, but are directly arranged on the first housing 2 and the second housing 3 of the electronic device. Specifically, the first support portion 1031 may be arranged at the end of the first housing 2 along the axial direction of the hinge mechanism 1, and the first support portion 1031 is located on a side of the first housing 2 close to the base 1021; the second support portion 1032 may be arranged at the end of the second housing 3 along the axial direction of the hinge mechanism 1, and the second support portion 1032 is located on a side of the second housing 3 close to the base 1021; the third support portion 1033 may be arranged at the end of the base 1021 along the axial direction of the hinge mechanism 1.

[0175] Similar to the above embodiment, the first housing 2 may include a first middle frame covering a first shell on a side of the first middle frame facing away from the flexible display screen, and the second housing 3 may include a second middle frame and a second shell covering a side of the second middle frame facing away from the flexible display screen. In the embodiment of the present application, the first support portion 1031 and the second support portion 1032 may be respectively disposed on the first middle frame and the second middle frame.

[0176] In a specific implementation, the first support portion 1031 may be provided with a first protrusion and a first groove, the second support portion 1032 may be provided with a second protrusion and a second groove, and correspondingly, the third support portion 1033 may be provided with a third protrusion and a third groove on a side close to the first shell 2, and the third support portion 1033 may be provided with a fourth protrusion and a fourth groove on a side close to the second shell 3. The concave-convex surface design of the first support portion 1031, the concave-convex surface design of the second support portion 1032, and the concave-convex surface design of the third support portion 1033 may all be designed with reference to the above-mentioned embodiments, and 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 to the first groove of the first support portion 1031, and the fourth protrusion of the third support portion 1033 is limited to the second groove 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 to the third groove of the third support portion 1033, and the second protrusion of the second support portion 1032 is limited to the fourth groove of the third support portion 1033. In this embodiment, when the electronic device is in the unfolded state and the closed state, the relative positions between the first shell 2 and the base 1021, and between the second shell 3 and the base 1021 can be limited by the concave-convex 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 shell 2 and the second shell 3 relative to the rotating shaft mechanism 1. Based on the fixed connection relationship between the first shell 2 and the first shell fixing frame 1013, and the fixed connection relationship between the second shell 3 and the second shell fixing frame 1014, when the positions of the first shell 2 and the second shell 3 are limited, the risk of misalignment between the first shell fixing frame 1013 and the second shell fixing frame 1014 can also be reduced.

[0178] In another embodiment, the first support portion 1031 and the third support portion 1033, and the second support portion 1032 and the third support portion 1033 may also adopt a matching relationship opposite to that in the above embodiment. For example, when the electronic device is in the unfolded state, the first protrusion 10311 of the first support portion 1031 is limited to the third groove 10332 of the third support portion 1033, and the second protrusion 10321 of the second support portion 1032 is limited to the fourth groove 10334 of the third support portion 1033; when the electronic device is in the closed state, the third protrusion 10331 of the third support portion 1033 is limited to the first groove 10312 of the first support portion 1031, and the fourth protrusion 10333 of the third support portion 1033 is limited to the second groove 10322 of the second support portion 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, and the details will not be repeated here.

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

[0180] Similarly, the second support portion 1032 and the second shell 3 can be designed in an integrated manner or in a split manner; and the third support portion 1033 and the base 1021 can be designed in an integrated manner or in a split manner.

[0181] Similar to the above-mentioned embodiment, in this 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 rotating 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 rotating 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 rotating shaft mechanism 1. In this way, the support component 103 can limit the first shell 2 and the second shell 3 at both ends of the rotating shaft mechanism 1, thereby further reducing the risk of the first shell 2 and the first shell fixing frame 1013, the second shell 3 and the second shell fixing frame 1014 being misaligned relative to the base, and improving the structural reliability of the electronic device in the falling or impact scenario.

[0182] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A rotating shaft mechanism, characterized in that: The invention comprises a main shaft, a first housing fixing frame, a second housing fixing frame and a supporting assembly, wherein 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 respectively, and the supporting assembly comprises a first supporting part, a second supporting part and a third supporting part, wherein: The first support portion is arranged 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 a side of the first housing fixing frame close to the main shaft, and the first support portion is provided with a first protrusion and a first groove; The second support portion is arranged 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 a side of the second housing fixing frame close to the main shaft, and the second support portion is provided with a second protrusion and a second groove; The third support portion is arranged at the end of the main shaft along the axial direction of the rotating shaft mechanism, a third protrusion and a third groove are arranged on a side of the third support portion close to the first housing fixing frame, and a fourth protrusion and a fourth groove are arranged on a side of the third support portion close to the second housing fixing frame; When the rotating shaft mechanism is in an extended state, the third raised limit is located in the first groove, and the fourth raised limit is located in the second groove; when the rotating shaft mechanism is in a closed state, the first raised limit is located in the third groove, and the second raised limit is located in the fourth groove; or, when the rotating shaft mechanism is in an extended state, the first raised limit is located in the third groove, and the second raised limit is located in the fourth groove; when the rotating shaft mechanism is in a closed state, the third raised limit is located in the first groove, and the fourth raised limit is located in the second groove.

2. The rotating shaft mechanism according to claim 1, characterized in that: The projection of the third support portion on the first plane covers the projection of the main axis on the first plane; Wherein, the first plane is a plane perpendicular to the axial direction of the rotating shaft mechanism.

3. The rotating shaft mechanism according to claim 1 or 2, characterized in that: The third supporting portion includes a main body and a baffle, the third protrusion, the third groove, the fourth protrusion, and the fourth groove are all arranged on the main body; the baffle is located on a side of the main body away from the main axis; When the hinge mechanism is in the expanded state and 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 covers at least a portion of the projection of the second support portion on the first plane; Wherein, the first plane is a plane perpendicular to the axial direction of the rotating shaft mechanism.

4. The rotating shaft mechanism according to any one of claims 1 to 3, 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 that is consistent with the shape of the first concave curved surface; The groove wall of the second groove includes a second concave curved surface, and the surface of the fourth protrusion includes a fourth convex curved surface having the same shape as the second concave curved surface.

5. The rotating shaft mechanism according to claim 4, characterized in that: The first concave surface includes a first inclined surface, and the third convex surface includes a third inclined surface, and along the direction from the third protrusion to the fourth protrusion, the third inclined surface of the third convex surface gradually inclines away from the supporting surface of the main shaft; The second concave surface includes a second inclined surface, and the fourth convex surface includes a fourth inclined surface, and along the direction from the fourth protrusion to the third protrusion, the fourth inclined surface of the fourth convex surface gradually inclines away from the supporting 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 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; Wherein, the supporting surface of the main shaft is a side of the main shaft used to support the flexible display screen of the electronic device.

6. The rotating shaft mechanism according to 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 is consistent with the shape of the third concave curved surface; The groove wall of the fourth groove includes a fourth concave curved surface, and the surface of the second protrusion includes a second convex curved surface that is consistent with the shape of the fourth concave curved surface.

7. The rotating shaft mechanism according to 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 inclines toward the supporting surface of the main shaft; The second convex surface includes a second inclined surface, and the fourth concave surface includes a fourth inclined surface, and along the direction in which the fourth groove points to the third groove, the fourth inclined surface of the fourth concave surface gradually inclines toward the supporting surface of the main shaft; When the rotating shaft mechanism is in a closed state, the first inclined surface of the first convex surface is parallel to the third inclined surface of the third concave surface and abuts against each other, and the second inclined surface of the second convex surface is parallel to the fourth inclined surface of the fourth concave surface and abuts against each other; Wherein, the supporting surface of the main shaft is a side of the main shaft used to support the flexible display screen of the electronic device.

8. The rotating shaft mechanism according to any one of claims 1 to 7, characterized in that: The surface of the third protrusion and the groove wall of the third groove are connected via a first connecting arc surface, and the surface of the fourth protrusion and the groove wall of the fourth groove are connected via a second connecting arc surface.

9. The rotating shaft mechanism according to any one of claims 1 to 8, characterized in that: The first supporting portion and the first housing fixing frame are an integral structure; and / or, The second supporting portion and the second housing fixing frame are an integral structure; and / or, The third supporting portion and the main shaft are an integral structure.

10. The rotating shaft mechanism according to any one of claims 1 to 9, characterized in that: The number of the first supporting parts is two, and the two first supporting parts are respectively arranged at two ends of the first housing fixing frame along the axial direction of the rotating shaft mechanism; The number of the second supporting parts is two, and the two second supporting parts are respectively arranged at two ends of the second shell fixing frame along the axial direction of the rotating shaft mechanism; The number of the third supporting parts is two, and the two third supporting parts are respectively arranged at two 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 10, characterized in that: The rotating shaft mechanism further includes a rotating module, and the first shell fixing frame and the second shell fixing frame are respectively rotated relative to the main shaft through the rotating module.

12. The rotating shaft mechanism according to claim 11, characterized in that: The rotating module comprises a first rotating assembly and a second rotating assembly, wherein the first rotating assembly and the second rotating assembly are respectively located between the first shell fixing frame and the second shell fixing frame; wherein, The first rotating assembly includes a first swing arm, a first support arm and a first connecting member, the first swing arm is rotatably connected to the main shaft, the first swing arm is slidably connected to the first housing fixing frame, the first support arm is rotatably connected to the second housing fixing frame, the first connecting member is located between the first swing arm and the first support arm, and the first connecting member is rotatably connected to the first swing arm and the first support arm respectively; 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, the second swing arm is slidably connected to the second housing fixing frame, the second support arm is rotatably connected to the second housing fixing frame, the second connecting member is located between the second swing arm and the second support arm, and the second connecting member is rotatably connected to the second swing arm and the second support arm respectively; The main shaft is provided with a first trajectory groove and a second trajectory groove, the first connecting member can move along the first trajectory groove to limit the movement trajectory of the first connecting member through the first trajectory groove; the second connecting member can move along the second trajectory groove to limit the movement trajectory of the second connecting member through the second trajectory groove.

13. An electronic device, characterized in that: The device comprises a first shell, a second shell, a flexible display screen and a hinge mechanism as claimed in any one of claims 1 to 12, wherein: The first shell and the second shell are respectively arranged on two sides of the rotating shaft mechanism, the first shell is fixedly connected to the first shell fixing frame, and the second shell is fixedly connected to the second shell fixing frame; The flexible display screen continuously covers the first shell, the second shell and the hinge mechanism, and the flexible display screen is fixedly connected to the first shell and the second shell.

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

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