Foldable electronic device

Abstract

The invention discloses foldable electronic equipment. The foldable electronic equipment comprises a hinge mechanism, a shell assembly, a flexible display screen and a flexible transmission piece, the hinge mechanism comprises a base frame assembly, a supporting assembly and a connecting rod component. The flexible display screen at least partially covers the shell assembly and the hinge mechanism. The flexible transmission piece penetrates through the hinge mechanism so that the two ends of the flexible transmission piece can be arranged on the two sides of the base frame assembly respectively. And when the hinge mechanism is in an unfolded state, the at least two groups of supporting assemblies and the at least two groups of connecting rod components are matched with the base frame assembly to form a supporting structure for supporting the flexible display screen. When the hinge mechanism is in a folded state, the other end of the first rotating piece and one end of the second rotating piece are arranged at intervals with the base frame assembly in the thickness direction of the base frame assembly, so that the at least two sets of supporting assemblies, the at least two sets of connecting rod components and the base frame assembly form a containing space, and the flexible display screen is bent in the containing space. The foldable electronic equipment has the advantages of being light and thin.

Description

Technical Field

[0001] The present disclosure relates to the field of electronic technology, and in particular to a foldable electronic device. Background Art

[0002] Electronic devices such as mobile phones and tablets have become indispensable technological products in people's lives, studies and entertainment. At present, foldable electronic devices using flexible displays require a mechanical hinge mechanism to fold the flexible display to ensure that there are no failures during normal use of the flexible display and that the normal bending of the flexible display is not affected. The flexible display of a foldable electronic device can be easily carried after being folded in half, and has a larger display area after being unfolded, which makes it increasingly popular among consumers.

[0003] In the related technologies of foldable electronic devices, a hinge mechanism is usually used to realize the unfolding or folding of a flexible display screen. However, the traditional hinge mechanism structure is relatively bulky, which is not conducive to realizing the thinness of foldable electronic devices. Summary of the invention

[0004] The present disclosure provides a foldable electronic device, which can achieve a smaller overall thickness after being folded, thereby facilitating the foldable electronic device to be lighter and thinner.

[0005] The technical solution is as follows:

[0006] According to the first aspect of the embodiment of the present disclosure, a foldable electronic device is provided, comprising a hinge mechanism, a shell assembly, a flexible display screen and a flexible transmission member. The hinge mechanism comprises a base frame assembly, a support assembly and a connecting rod component. The connecting rod component and the supporting assembly are at least two groups, and are respectively arranged on both sides of the base frame assembly in a one-to-one correspondence; the connecting rod component comprises a first rotating member and a second rotating member; one end of the first rotating member is rotatably connected to the base frame assembly, the other end of the first rotating member is rotatably connected to one end of the second rotating member, and the other end of the second rotating member is rotatably connected to the support assembly. The shell assembly comprises at least two shell bodies, the two shell bodies are respectively arranged on both sides of the base frame assembly, and one of the shell bodies is fixedly connected to one of the support assemblies, and the other shell body is fixedly connected to the other support assembly. At least part of the flexible display screen covers the shell assembly and the hinge mechanism; the flexible transmission member passes through the hinge mechanism so that the two ends of the flexible transmission member are respectively arranged on both sides of the base frame assembly.

[0007] When the hinge mechanism is in an unfolded state, at least two groups of support components and at least two groups of connecting rod components cooperate with the base frame component to form a support structure for supporting the flexible display screen.

[0008] When the hinge mechanism is in a folded state, the other end of the first rotating member and one end of the second rotating member are spaced apart from the base assembly along the thickness direction of the base assembly, so that at least two groups of supporting assemblies and at least two groups of connecting rod components form an accommodating space with the base assembly, and the flexible display screen is bent in the accommodating space.

[0009] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0010] The foldable electronic device passes through the hinge mechanism through a flexible transmission member, so that the two ends of the flexible transmission member are respectively arranged on the two sides of the base assembly, which is convenient for realizing the electrical connection between the electronic devices on both sides of the base assembly. The flexible transmission member is flexibly arranged, does not affect the movement of the hinge mechanism, and is also easy to arrange. When the foldable electronic device switches from a folded state to an unfolded state, the connecting rod components on both sides of the base assembly drive the support assembly to rotate around the base assembly, and at least two groups of support assemblies and at least two groups of connecting rod components cooperate with the base assembly to form a support structure to support the flexible display screen to improve the display quality. When the hinge mechanism is in a folded state, the other end of the first rotating member and one end of the second rotating member are spaced from the base assembly along the thickness direction of the base assembly, so that the support assembly can be arranged away from the base assembly, thereby making space for the flexible display screen. That is, when the flexible display screen requires a larger bending space, the supporting component is arranged away from the base component so that the troughs or crests of the flexible display screen when bending are staggered as much as possible with the supporting component in the thickness direction of the foldable electronic device after being folded, thereby reducing or avoiding partial overlap of the troughs or crests of the flexible display screen with the supporting component, making the overall thickness of the foldable electronic device smaller after being folded, thereby facilitating the realization of lightweight and thin foldable electronic devices.

[0011] The technical solution of the present disclosure is further described below:

[0012] In one embodiment, at least two groups of support components are symmetrically arranged on both sides of the base component. In this way, the movement trajectories of at least two groups of support components along both sides of the base component are the same, so that the flexible display screen is reliably supported by the support components.

[0013] And / or, at least two groups of connecting rod components are symmetrically arranged on both sides of the base assembly. In this way, the movement trajectories of at least two groups of connecting rod components along both sides of the base assembly are the same, so that the support assembly can drive the flexible display screen to fold inward or unfold outward symmetrically.

[0014] And / or, on the cross-sectional surface in the thickness direction of the base assembly, when the hinge mechanism is in a folded state, the width of the accommodating space gradually increases from the base assembly to the other end of the first rotating member, and the width of the accommodating space gradually decreases from one end of the second rotating member to the other end of the second rotating member. In this way, the accommodating space is gradually increased to reduce stress concentration. The width of the accommodating space gradually decreases from one end of the second rotating member to the other end of the second rotating member, so that the flexible display screen gradually fits in the direction away from the base assembly. This is conducive to achieving the lightness and thinness of the foldable electronic device, and makes the flexible display screen bend smoothly, thereby improving the bending service life.

[0015] In one embodiment, a first hinged portion is disposed at the other end of the first rotating member, and a second hinged portion is disposed at one end of the second rotating member, and the second hinged portion is hingedly connected to the first hinged portion.

[0016] In one embodiment, the first rotating member further includes a first rotating shaft, and the first hinged portion is hingedly connected to the second hinged portion via the first rotating shaft;

[0017] And / or, at least a portion of the second hinged portion is embedded in the first hinged portion, so that the structure of the hinge mechanism is more compact.

[0018] In one of the embodiments, on the cross-sectional surface in the thickness direction of the base assembly, the width of the accommodating space gradually increases from the base assembly to the first rotating shaft, and the width of the accommodating space gradually decreases from the first rotating shaft to the other end of the second rotating member. In this way, the width of the accommodating space gradually increases from the base assembly to the first rotating shaft, fully avoiding the flexible display screen so that it can bend smoothly to reduce stress concentration. The width of the accommodating space gradually decreases from the first rotating shaft to the other end of the second rotating member, so that the flexible display screen gradually fits away from the base assembly. This is conducive to achieving the thinness of the foldable electronic device, and allows the flexible display screen to bend smoothly, thereby increasing the bending service life.

[0019] And / or, the first hinged portion includes at least two first rotating bodies arranged at intervals, a first gap is formed between two adjacent first rotating bodies, and the first rotating body is provided with a second through hole; the second hinged portion includes at least two second rotating bodies arranged at intervals, a second gap is formed between two adjacent second rotating bodies, and the second rotating body is provided with a third through hole, one of the second rotating bodies is inserted into the first gap, and one of the first rotating bodies is inserted into the second gap, so that the second through hole is coaxially arranged with the third through hole, and the first rotating shaft passes through the second through hole and the third through hole.

[0020] In one embodiment, the connecting rod component also includes a third rotating member, which is rotatably connected to the base assembly and slidably connected to the support assembly; the connecting rod component includes a transmission member, one end of the transmission member is rotatably connected to the third rotating member, and the other end of the transmission member is rotatably connected to the first hinge part and the second hinge part through the first rotating shaft.

[0021] In one embodiment, the other end of the transmission member includes two first rotating parts arranged at intervals, the first rotating part is provided with a first through hole, the first rotating body and the second rotating body are arranged between the two first rotating parts, and the first through hole, the second through hole and the third through hole are coaxially arranged, and the first rotating shaft passes through the first through hole, the second through hole and the third through hole.

[0022] In one embodiment, the base assembly includes a first support surface;

[0023] When the hinge mechanism is in an unfolded state, the support assembly cooperates with the first support surface to form a support structure;

[0024] When the hinge mechanism is in a folded state, the support assembly and the connecting rod component are arranged at an angle relative to the first support surface to form an accommodating space; the other end of the first rotating member and one end of the second rotating member are spaced apart from the first support surface along the thickness direction of the base assembly so that the support assembly is spaced apart from the first support surface.

[0025] In one embodiment, the connecting rod component further includes a third rotating member, the third rotating member is rotatably connected to the base assembly and the first rotating member; the base assembly includes a first supporting surface, the supporting assembly includes a moving member and a supporting member, the moving member is rotatably connected to the supporting member, the moving member is rotatably connected to the second rotating member, and is slidably connected to the third rotating member;

[0026] When the hinge mechanism is in an unfolded state, the support member cooperates with the first support surface to form a support structure; when the hinge mechanism is in a folded state, the support member is arranged at an angle relative to the first support surface to form an accommodating space.

[0027] In one embodiment, the first rotating member includes at least a second supporting surface, and the supporting member includes a third supporting surface; when the hinge mechanism is in an unfolded state, the second supporting surface is located in the same plane as the first supporting surface and the third supporting surface.

[0028] In one embodiment, the first rotating member includes a stop surface, and when the hinge mechanism is in a folded state, the stop surface abuts against the supporting member.

[0029] In one embodiment, the first rotating member and the rotation axis of the base assembly, and the third rotating member and the rotation axis of the base assembly are parallel and not coaxial;

[0030] And / or, the connecting rod component includes a second rotating shaft, the other end of the second rotating member includes a third hinge part, the third hinge part includes at least two third rotating bodies arranged at intervals, a third notch is formed between two adjacent third rotating bodies, and the third rotating body is provided with a fourth through hole; the moving member includes at least two mounting bodies arranged at intervals, a fourth notch is formed between two adjacent mounting bodies, the mounting bodies are provided with a rotating groove, one of the mounting bodies is inserted into the third notch, one of the third rotating bodies is inserted into the fourth notch, the fourth through hole is coaxially arranged with the rotating groove, and the second rotating shaft passes through the fourth through hole and the rotating groove.

[0031] In one embodiment, the connecting rod component includes:

[0032] A transmission member, one end of which is rotationally connected to the third rotating member, and the other end of which is rotationally connected to the first rotating member and the second rotating member.

[0033] In one embodiment, the rotation axes of the transmission member and the third rotating member, the rotation axes of the rotating member and the moving member, and the rotation axes of the third rotating member and the base assembly are located in the same plane.

[0034] In one embodiment, the other end of the transmission member includes two first rotating parts arranged at an interval, a portion of the first rotating member is arranged between the two first rotating parts and is rotatably connected to the two first rotating parts; and / or, a second rotating part is provided at one end of the transmission member, and the second rotating part is hinged to the third rotating member.

[0035] In one embodiment, the connecting rod component includes:

[0036] The first rotating shaft and the first rotating part are provided with a first through hole, the first rotating member is provided with a second through hole coaxially arranged with the first through hole, and the first rotating shaft passes through the first through hole and the second through hole.

[0037] In one embodiment, the third rotating member is rotationally connected to the base frame assembly and the transmission member respectively, and the third rotating member is slidingly connected to the moving member.

[0038] In one embodiment, the third rotating member comprises:

[0039] a third rotating part, the third rotating part being rotatably connected to the base frame assembly;

[0040] The second guide part, the moving part is provided with a sliding groove which is slidably matched with the second guide part.

[0041] In one embodiment, the third rotating member further includes a fourth rotating portion, the fourth rotating portion is located between the second guide portion and the third rotating portion, and the fourth rotating portion is rotationally connected to the transmission member.

[0042] In one embodiment, the connecting rod component includes a third rotating shaft installed on the base frame assembly, and the third rotating part includes a first rotating hole rotatably matched with the third rotating shaft; the fourth rotating part includes a fourth rotating shaft, and the fourth rotating shaft is rotatably connected to the transmission member.

[0043] In one embodiment, the second guide portion includes: a guide body extending from the fourth rotating portion to a side away from the third rotating portion, and the guide body is slidably engaged with the slide groove.

[0044] In one embodiment, the third rotating member includes a receiving recess, which is arranged between the second guide portion and the third rotating portion; when the hinge mechanism is in a folded state, the receiving recess, the third supporting surface and the first supporting surface enclose a receiving space.

[0045] In one embodiment, there is a first rotation axis between the first rotating member and the base assembly, a second rotation axis between the first rotating member and the second rotating member, and a third rotation axis between the second rotating member and the movable member. The first rotation axis, the second rotation axis and the third rotation axis are parallel to each other, and the second rotation axis is located between the first rotation axis and the third rotation axis.

[0046] In one embodiment, the moving member is provided with a first arc-shaped guide portion, and the supporting member is provided with a second arc-shaped guide portion, and the first arc-shaped guide portion is guidingly connected with the second arc-shaped guide portion so that the moving member is rotationally connected with the supporting member.

[0047] In one embodiment, a second arc-shaped groove is disposed between the first arc-shaped guide portion and the second arc-shaped guide portion, and a second arc-shaped body is disposed between the first arc-shaped guide portion and the second arc-shaped body. The second arc-shaped body cooperates with the second arc-shaped groove for guiding.

[0048] In one embodiment, the moving member is provided with an avoidance surface, and on a cross-sectional surface in the thickness direction of the base frame assembly, the avoidance surface is arranged closer to the side wall of the base frame assembly and further away from the first supporting surface;

[0049] When the hinge mechanism is in an unfolded state, part of the support member is arranged away from the avoidance surface; when the hinge mechanism is in a folded state, the support member is arranged in contact with or close to the avoidance surface.

[0050] In one embodiment, the hovering rotation range of the third rotating member is A, and A≥50°.

[0051] In one embodiment, the third rotating member can be suspended and rotated, so that the hinge mechanism can be suspended at any angle within the range of 45° to 135°.

[0052] In one embodiment, the hinge mechanism further includes a damping component, and the damping component cooperates with the third rotating member to rotate with damping, so that the third rotating member can rotate in a suspended manner.

[0053] In one embodiment, the third rotating member includes a third rotating shaft and a matching portion, the damping assembly includes an elastic member, a first damping member and a mounting member fixedly connected to the base assembly, one end of the third rotating shaft is fixed to the mounting member, and the other end is fixed to the base assembly, the elastic member and the first damping member are sleeved on the third rotating shaft, and the elastic member is arranged between the mounting member and the first damping member; one of the first damping member and the matching portion is provided with a pressing protrusion, and the other is provided with a pressure-bearing surface that abuts against the pressing protrusion and a second groove for accommodating the pressing protrusion.

[0054] When the third rotating member rotates, the pressing protrusion presses against the pressure-bearing surface, so that the third rotating member rotates with damping, thereby realizing the hovering motion.

[0055] When the hinge mechanism is in the folded state, the pressing protrusion is disposed in the second groove, so that the third rotating member is fixed relative to the base assembly and drives the supporting member to rotate toward the unfolded state, so that the foldable electronic device can be fixed in the folded state (a greater force is required to rotate), which is convenient for users to carry.

[0056] Alternatively, when the hinge mechanism is in the unfolded state, the pressing protrusion is disposed in the second groove, so that the third rotating member is fixed relative to the base assembly and drives the supporting member to rotate toward the folded state, so that the foldable electronic device can be fixed in the unfolded state (a greater force is required to rotate), which is convenient for users to use the large screen.

[0057] In one embodiment, the material parameters of at least some parts of the damping assembly satisfy at least one of the following: 550HV≥ surface hardness≥450HV, yield strength≥1600MPa, and tensile strength≥1700MPa.

[0058] In one of the embodiments, the material parameters of the first damping element satisfy at least one of the following: 550 HV ≥ surface hardness ≥ 450 HV, yield strength ≥ 1600 MPa, and tensile strength ≥ 1700 MPa.

[0059] In one embodiment, a support assembly and a connecting rod component are arranged on one side of the base assembly as a first group, and a support assembly and a connecting rod component are arranged on the other side of the base assembly as a second group; the hinge mechanism also includes a synchronization assembly, and the third rotating member of the first group moves synchronously with the third rotating member of the second group through the synchronization assembly.

[0060] In one embodiment, the synchronization assembly includes at least one synchronization gear, and the third rotating member includes a gear body meshing with the at least one synchronization gear.

[0061] In one embodiment, the support member comprises:

[0062] a first support portion;

[0063] The second support part has a material stiffness greater than that of the first support part, and the second support part is arranged side by side at at least one end of the first support part along the first direction, and the orthographic projections of the second support part and the first support part along the second direction partially overlap.

[0064] In one embodiment, the second support portion at least comprises:

[0065] A first part, the first part and the first supporting part are arranged side by side along a first direction;

[0066] The second part is connected to the first part and the first supporting portion respectively, and the orthographic projection of the second part along the second direction overlaps with the first part and the first supporting portion respectively.

[0067] In one embodiment, the first support portion comprises:

[0068] A third part, the third part and the second supporting part are arranged side by side along the first direction;

[0069] The fourth part is connected to the third part and the second supporting part respectively, and the orthographic projection of the fourth part along the second direction overlaps with the third part and the second supporting part respectively.

[0070] In one embodiment, the first support portion and the second support portion are connected by at least one of the following methods: injection molding, bolting, clamping, and riveting.

[0071] In one embodiment, the support assembly further comprises a limit rod, one end of which is rotatably connected to one of the moving member and the second support portion, and the other end of which is movably connected to the other of the moving member and the second support portion;

[0072] When the hinge mechanism is in the unfolded state, the limiting rod is engaged with the moving member and the second supporting portion to limit the second supporting portion from continuing to rotate in the unfolding direction of the hinge mechanism.

[0073] In one embodiment, the angle between the limiting rod and the first supporting surface is greater than 30°.

[0074] In one embodiment, the support assembly further includes a first limiting shaft, the other end of the limiting rod is connected to the first limiting shaft, the other of the moving member and the second supporting part is provided with a limiting groove, a portion of the first limiting shaft is inserted into the limiting groove and movably cooperates with the limiting groove;

[0075] When the hinge mechanism is in the unfolded state, the first limiting shaft abuts against the end of the limiting groove, so that the limiting rod is engaged with the moving part and the second supporting part.

[0076] In one embodiment, the limit groove is arranged on the movable part, and the second support part is rotatably connected to one end of the limit rod; the movable part is provided with two first mounting bodies which are spaced apart to form an avoidance groove for avoiding the other end of the limit rod, and the limit groove is arranged on at least one of the first mounting bodies and is connected to the avoidance groove.

[0077] In one embodiment, a first mounting through hole is provided at the other end of the limiting rod, the first limiting shaft is sleeve-fitted with the first mounting through hole, and the diameter of the first limiting shaft is greater than or equal to the diameter of the first mounting through hole.

[0078] In one embodiment, the first limiting shaft includes a first shaft body rotatably matched with the first mounting through hole, a first end shaft fixed at one end of the first shaft body, and a second end shaft fixed at the other end of the second shaft body, the diameter of the first shaft body is greater than or equal to the diameter of the first mounting through hole, the diameter of the first end shaft and the diameter of the second end shaft are greater than the diameter of the first mounting through hole, and at least one of the first end shaft and the second end shaft is slidably matched with the limiting groove.

[0079] In one of the embodiments, the first end shaft and / or the second end shaft is provided with a first introduction portion; and / or, the end of the first mounting through hole is provided with a first introduction hole.

[0080] In one embodiment, at least a portion of the limiting rod is elastic so that the first mounting through hole can be elastically deformed.

[0081] In one embodiment, the support assembly further includes a second limiting shaft, one end of the limiting rod is connected to the second limiting shaft, the second support portion is provided with a matching hole, a portion of the second limiting shaft is inserted into the matching hole and rotatably matched with the matching hole.

[0082] In one embodiment, a second mounting through hole is provided at one end of the limiting rod, the second limiting shaft is rotatably matched with the second mounting through hole, and the diameter of the first limiting shaft is greater than or equal to the diameter of the second mounting through hole.

[0083] In one embodiment, the second limiting shaft includes a second shaft body rotatably engaged with the second mounting through hole, a third end shaft fixed to one end of the second shaft body, and a fourth end shaft fixed to the other end of the second shaft body. The diameter of the second shaft body is greater than or equal to the diameter of the second mounting through hole, the diameter of the third end shaft and the diameter of the fourth end shaft are greater than the diameter of the second mounting through hole, and at least one of the third end shaft and the fourth end shaft is rotatably engaged with the mating hole.

[0084] In one of the embodiments, the third end shaft and / or the fourth end shaft is provided with a second introduction portion; and / or, the end of the second mounting through hole is provided with a second introduction hole.

[0085] In one embodiment, at least a portion of the limiting rod is elastic so that the second mounting through hole can be elastically deformed.

[0086] In one embodiment, the second supporting portion is provided with a first connecting portion, and the first connecting portion is rotatably connected to the limiting rod.

[0087] In one embodiment, at least a portion of the first connecting portion is convex.

[0088] In one of the embodiments, the first supporting portion comprises at least one guiding portion for guiding the flexible transmission member.

[0089] In one embodiment, the guide portion is in the shape of a convex rib and extends along the length direction of the first support portion.

[0090] In one embodiment, the base frame assembly includes a support plate and a cover plate, at least one of the support plate and the cover plate is provided with a first groove, the cover plate and the support plate are fixedly connected so that the first groove cooperates to form a first arc groove, and the first rotating member includes a first guide portion that rotates with the first arc groove.

[0091] In one embodiment, at least one of the following components is made of steel with a tensile strength in the range of 1400 MPa to 1900 MPa:

[0092] Base frame assembly;

[0093] Support components;

[0094] Connecting rod parts.

[0095] In one embodiment, the base frame components and the connecting rod components correspond to each other to form a third group, and at least two third groups are arranged on the shell component at intervals along the length direction of the foldable electronic device.

[0096] In one embodiment, the shell assembly includes a fixed shell, the length direction of the fixed shell is arranged along the length direction of the foldable electronic device, at least two first groups are arranged in the shell assembly at intervals along the length direction of the fixed shell, and the base assembly is fixed to the fixed shell.

[0097] In one embodiment, the connecting rod component also includes a third rotating member, which is rotatably connected to the base assembly and the first rotating member; the base assembly includes a first supporting surface, the supporting assembly includes a moving member and a supporting member, the moving member is rotatably connected to the supporting member, the moving member is rotatably connected to the second rotating member, and is slidably connected to the third rotating member; the foldable electronic device includes a first connecting plate, at least two moving members correspond one-to-one to the third group, and are spaced apart in the shell assembly along the length direction of the foldable electronic device, and two adjacent moving members are connected by the first connecting plate.

[0098] In one of the embodiments, the length direction of the support member can be arranged in the length direction of the foldable electronic device, and at least two moving members are respectively connected to the support member;

[0099] Alternatively, the foldable electronic device also includes a second connecting plate, at least two supporting members correspond one-to-one to at least two movable members, and are arranged at intervals in the shell assembly along the length direction of the foldable electronic device, and two adjacent supporting members are connected by the second connecting plate.

[0100] In one of the embodiments, the foldable electronic device further includes a third connecting plate, which is arranged at intervals along the length direction of the foldable electronic device, and two adjacent base frame assemblies are connected by the third connecting plate.

[0101] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0102] BRIEF DESCRIPTION OF THE DRAWINGS The drawings constituting a part of the present disclosure are used to provide a further understanding of the present disclosure. The illustrative embodiments of the present disclosure and the description thereof are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure.

[0103] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0104] Figure 1 Schematic diagram of the structure of a foldable electronic device shown in one embodiment (the flexible display screen is in an unfolded state).

[0105] Figure 2 for Figure 1 A schematic diagram of a foldable electronic device in a folded state is shown.

[0106] Figure 3 for Figure 2 A schematic cross-sectional view of AA of the foldable electronic device shown.

[0107] Figure 4 for Figure 3 Schematic diagram of the principle of the hinge mechanism shown.

[0108] Figure 5 Schematic diagram of the structure of a hinge mechanism shown in an embodiment (the hinge mechanism is in an unfolded state).

[0109] Figure 6 for Figure 5 A schematic diagram of the hinge mechanism shown is in a folded state.

[0110] Figure 7 for Figure 5The structure diagram of the hinge mechanism shown is shown in another perspective.

[0111] Figure 8 for Figure 5 Schematic diagram of the structural explosion of the hinge mechanism shown.

[0112] Fig. 9 for Figure 8 A local enlarged schematic diagram of area A is shown.

[0113] Fig.10 for Figure 5 The shown schematic cross-sectional view of the hinge mechanism in the direction of the first link assembly.

[0114] Fig.11 for Figure 6 The shown schematic cross-sectional view of the hinge mechanism in the direction of the first link assembly.

[0115] Fig.12 for Figure 5 The shown schematic cross-sectional view of the hinge mechanism in the direction of the second link assembly.

[0116] Fig.13 for Figure 6 The shown schematic cross-sectional view of the hinge mechanism in the direction of the second link assembly.

[0117] Fig.14 It is a schematic diagram of the cooperation between the cooperation portion and the first damping member shown in an embodiment.

[0118] Fig.15 It is a structural schematic diagram of a hinge mechanism shown in another embodiment (the hinge mechanism is in motion).

[0119] Fig.16 for Fig.15 An enlarged schematic diagram of region B is shown.

[0120] Fig.17 for Fig.15 The structural schematic diagram of the hinge mechanism shown is in the unfolded state.

[0121] Fig.18 for Fig.17 An enlarged schematic diagram of region C is shown.

[0122] Fig.19 for Fig.17 The enlarged schematic diagram of the local structure of the hinge mechanism shown.

[0123] Fig. 20 for Fig.19 The schematic diagram of the structural explosion of the limiting rod, the first limiting shaft and the second limiting shaft is shown.

[0124] Fig.21It is a schematic diagram of the partial structure of a support member shown in an embodiment.

[0125] Fig. 22 It is a schematic diagram of a partial structure of a foldable electronic device shown in one embodiment.

[0126] Fig.23 It is a schematic diagram of the cooperation between the cooperation portion and the first damping member shown in an embodiment.

[0127] Fig.24 It is a schematic diagram of the application of a damping component and a synchronization component shown in another embodiment.

[0128] Fig.25 It is a schematic structural diagram of a damping assembly shown in another embodiment.

[0129] Fig.26 for Fig.25 Schematic diagram of the coordination between the damping assembly and the third rotating shaft.

[0130] Description of reference numerals:

[0131] 10. Foldable electronic device; 11. Flexible display screen; 12. Hinge mechanism; 13. Shell assembly; 13a. Shell body; 100. Base assembly; 110. First arc groove; 120. Support plate; 121. First support surface; 130. Cover plate; 131. First groove; 200. Connecting rod component; 210. First connecting rod assembly; 210a. Second support surface; 211. Transmission member; 2111. First rotating part; 201. First through hole; 2112. Second rotating part; 212. First rotating member; 2121. First guide part; 2122. First hinged part; 202. First rotating body; 203. First notch; 204. Second through hole; 2123. Plate body; 213. Second rotating member; 2131 , anti-rotation surface; 2132, second hinged portion; 205, second rotating body; 206, second notch; 207, third through hole; 2133, third hinged portion; 208, third rotating body; 209, third notch; 2010, fourth through hole; 2134, support portion; 2135, avoidance recess; 2136, connecting portion; 214, first rotating shaft; 215, second rotating shaft; 220, second connecting rod assembly; 221, third rotating member; 2211, third rotating portion; 2001, first rotating hole; 2212, second guide portion; 2002, guide body; 2213, fourth rotating portion; 2214, accommodating recess; 2215, support body; 2216, arc body; 222, third rotating shaft; 223, fourth rotating shaft ; 224, matching part; 2241, pressure-bearing surface; 2242, second groove; 300, support assembly; 310, moving part; 301, slide groove; 311, first mounting body; 3111, rotating groove; 312, fourth notch; 313, first arc-shaped guide part; 304, second arc-shaped groove; 314, avoidance surface; 315, limiting groove; 316, first mounting body; 317, avoidance groove; 320, support member; 302, third supporting surface; 303, accommodating space; 321, second arc-shaped guide part; 305, second arc-shaped body; 322, guide part; 323, matching hole; 324, first supporting part; 325, second supporting part; 330, limiting rod; 331, first mounting through hole; 332, second mounting through hole hole; 340, first limiting axis; 341, first axis body; 342, first end axis; 343, second end axis; 350, second limiting axis; 351, second axis body; 352, third end axis; 353, fourth end axis; 360, third connecting plate; 400, synchronization assembly; 410, first gear; 420, second gear; 430, transmission gear set; 500, damping assembly; 510, mounting member; 520, elastic member; 530, first damping member; 531, pressing protrusion; 540, damping ring; 550, second damping member; 501, matching groove; 551, first matching section; 552, second matching section; 553, third matching section; 554, first convex body; 555, second convex body; 502, clearance hole. DETAILED DESCRIPTION

[0132] In order to make the purpose, technical solution and advantages of the present disclosure more clear, the present disclosure is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the present disclosure and do not limit the protection scope of the present disclosure.

[0133] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present disclosure belongs. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0134] In order to better understand the hinge mechanism of the present invention, a foldable electronic device using the hinge mechanism is used for illustration.

[0135] like Figures 1 to 4 As shown, a foldable electronic device 10 includes a flexible display screen 11 and the above-mentioned hinge mechanism 12. The hinge mechanism 12 includes a base assembly 100, a connecting rod component 200 and a support assembly 300. The connecting rod component 200 includes a first connecting rod component 210 and a second connecting rod component 220. The first connecting rod component 210 is rotatably connected to the base assembly 100, and the first connecting rod component 210 is rotatably connected to the support assembly 300. The first connecting rod component 210 and the second connecting rod component 220 are rotatably connected. The second connecting rod component 220 is rotatably connected to the base assembly 100, and the second connecting rod component 220 is slidably connected to the support assembly 300. The connecting rod component 200 and the support assembly 300 are at least two groups, respectively, and are respectively arranged on both sides of the base assembly 100 in a one-to-one correspondence. At least part of the flexible display screen 11 covers at least two groups of support assemblies 300.

[0136] When the foldable electronic device 10 switches from a folded state to an open state, the connecting rod assemblies on both sides of the base assembly 100 rotate around the base assembly 100, so that when the first connecting rod assembly 210 and the second connecting rod assembly 220 rotate along the base assembly 100, the first connecting rod assembly 210 can drive the support assembly 300 to rotate, so that the support assembly 300 and the second connecting rod assembly 220 slide, so that at least part of the support assembly 300 is opened toward the supporting state, and then the flexible display screen 11 covering at least two groups of support assemblies 300 is also opened toward the open state. When the foldable electronic device 10 switches from an open state to a folded state, the connecting rod assemblies on both sides of the base assembly 100 rotate around the base assembly 100, so that when the first connecting rod assembly 210 and the second connecting rod assembly 220 rotate along the base assembly 100, the first connecting rod assembly 210 can drive the support assembly 300 to rotate, so that the support assembly 300 and the second connecting rod assembly 220 slide, so that at least part of the support assembly 300 rotates toward the supporting state, and then the flexible display screen 11 covering at least two groups of support assemblies 300 is also folded in the direction of the folded state.

[0137] In order to better understand the technical solution of the present application, the width direction of the support member 320 is set to be the X-axis direction, that is, Figure 7 As shown, the spacing direction of the two support members 320. The length direction of the support member 320 is set to the Y-axis direction, that is, Figure 7 The spacing direction of the two damping components 500 shown. The thickness direction of the base frame component 100 is set to the Z-axis direction, that is, Fig.10 Section directions shown.

[0138] In some embodiments, the first connecting rod assembly 210 includes a first rotating member 212 and a second rotating member 213 , and the second connecting rod assembly 220 includes a third rotating member 221 .

[0139] Furthermore, if Figure 3 , Figure 4 , Fig.10 as well as Fig.11As shown, in some embodiments, the foldable electronic device 10 further includes a housing component 13 and a flexible transmission component 14. The connecting rod component 200 and the supporting component 300 are respectively at least two groups, and are respectively arranged on both sides of the base component 100 in a one-to-one correspondence; the connecting rod component 200 includes a first rotating member 212 and a second rotating member 213; one end of the first rotating member 212 is rotatably connected to the base component 100, the other end of the first rotating member 212 is rotatably connected to one end of the second rotating member 213, and the other end of the second rotating member 213 is rotatably connected to the supporting component 300. The housing component 13 includes at least two shell bodies 13a, the two shell bodies 13a are respectively arranged on both sides of the base component 100, and one of the shell bodies 13a is fixedly connected to one of the supporting components 300, and the other shell body 13a is fixedly connected to the other supporting component 300. At least a portion of the flexible display screen 11 covers the housing assembly 13 and the hinge mechanism 12 ; the flexible transmission member 14 passes through the hinge mechanism 12 , so that two ends of the flexible transmission member 14 are respectively disposed on two sides of the base assembly 100 .

[0140] like Fig.10 As shown, when the hinge mechanism 12 is in the unfolded state, at least two groups of support components 300 and at least two groups of connecting rod components 200 cooperate with the base frame component 100 to form a support structure for supporting the flexible display screen 11.

[0141] like Fig.11 As shown, when the hinge mechanism 12 is in a folded state, the other end of the first rotating member 212 and one end of the second rotating member 213 are spaced apart from the base assembly 100 along the thickness direction of the base assembly 100, so that at least two groups of support assemblies 300 and at least two groups of connecting rod components 200 form a receiving space 303 with the base assembly 100, and the flexible display screen 11 is bent in the receiving space 303.

[0142] The foldable electronic device 10 passes through the hinge mechanism 12 through the flexible transmission member 14, so that the two ends of the flexible transmission member 14 are respectively arranged on both sides of the base assembly 100, so as to facilitate the electrical connection between the electronic devices on both sides of the base assembly 100. The flexible transmission member 14 is flexibly arranged, does not affect the movement of the hinge mechanism 12, and is also easy to arrange. When the foldable electronic device 10 switches from the folded state to the unfolded state, the connecting rod components 200 on both sides of the base assembly 100 drive the support assembly 300 to rotate around the base assembly 100, and at least two groups of support assemblies 300 and at least two groups of connecting rod components 200 cooperate with the base assembly 100 to form a support structure to support the flexible display screen 11 to improve the display quality. When the hinge mechanism 12 is in the folded state, the other end of the first rotating member 212 and one end of the second rotating member 213 are spaced from the base assembly 100 along the thickness direction of the base assembly 100, so that the support assembly 300 can be arranged away from the base assembly 100, and then the space can be given to the flexible display screen 11. That is, when the flexible display screen 11 requires a larger bending space, the support component 300 is disposed away from the base component 100, so that the troughs or crests of the flexible display screen 11 when bending are staggered as much as possible with the support component 300 in the thickness direction after the foldable electronic device 10 is folded, thereby reducing or avoiding partial overlap between the troughs or crests of the flexible display screen 11 and the support component 300, thereby making the overall thickness of the foldable electronic device 10 smaller after folding, thereby facilitating the thinning and lightening of the foldable electronic device 10.

[0143] It can be understood that the flexible display screen 11 covers the shell body 13a to form a protective space, at least part of the hinge mechanism 12 is arranged in the protective space, the connecting rod component 200 and the supporting assembly 300 are at least two groups, and are arranged on both sides of the base assembly 100 in a one-to-one correspondence; when the shell body 13a and the other shell body 13a are in an open state, parts of the two supporting assemblies 300 are used to support the flexible display screen 11, so that the flexible display screen 11 is in an unfolded state. When the shell body 13a and the other shell body 13a are in a folded state, when the flexible display screen 11 is in a supported state, at least parts of the two supporting assemblies 300 are arranged opposite to each other and form a receiving space 303, and part of the flexible display screen 11 can be bent in the receiving space 303, which can reduce the bending stress on the flexible display screen 11 and improve the service life of the flexible display screen 11.

[0144] In some embodiments, the flexible transmission member 14 is passed through the base frame assembly.

[0145] In some embodiments, the outer sidewalls of the base assembly 100 may be used to form decorative sidewalls of the foldable electronic device 10 to improve the aesthetic appearance of the foldable electronic device 10 .

[0146] In some embodiments, the steel material used in at least one of the base assembly 100 , the support assembly 300 , and the connecting rod component 200 has a tensile strength of 1400 MPa to 1900 MPa, thereby improving the folding durability of the hinge mechanism 12 .

[0147] Optionally, the above range also includes 1500MPa~1800MPa, 1600MPa~1700MPa, 1600MPa~1800MPa and so on.

[0148] Based on any of the above embodiments, Fig.10 As shown, in some embodiments, at least two groups of support components 300 are symmetrically arranged on both sides of the base component 100. In this way, the movement trajectories of at least two groups of support components 300 along both sides of the base component 100 are the same, so that the flexible display screen 11 is reliably supported by the support components 300.

[0149] Based on any of the above embodiments, Fig.10 As shown, in some embodiments, at least two groups of connecting rod components 200 are symmetrically arranged on both sides of the base assembly 100. In this way, the movement trajectories of at least two groups of connecting rod components along both sides of the base assembly 100 are the same, so that the support assembly 300 can drive the flexible display screen 11 to symmetrically fold inward or symmetrically unfold outward.

[0150] Based on any of the above embodiments, Fig.10 as well as Fig.11 As shown, in some embodiments, on the cross-sectional surface in the thickness direction of the base assembly 100, when the hinge mechanism 12 is in a folded state, the width of the accommodating space 303 gradually increases from the base assembly 100 to the other end of the first rotating member 212, and the width of the accommodating space 303 gradually decreases from one end of the second rotating member 213 to the other end of the second rotating member 213. In this way, the accommodating space 303 first gradually increases to reduce stress concentration. The width of the accommodating space 303 gradually decreases from one end of the second rotating member 213 to the other end of the second rotating member 213, so that the flexible display screen 11 gradually fits in the direction away from the base assembly 100. That is, it is conducive to realizing the lightness and thinness of the foldable electronic device 10, and the flexible display screen 11 is smoothly bent, which improves the bending service life.

[0151] like Fig. 9 As shown, in some embodiments, a first hinged portion 2122 is disposed at the other end of the first rotating member 212 , and a second hinged portion 2132 is disposed at one end of the second rotating member 213 , and the second hinged portion 2132 is hinged to the first hinged portion 2122 .

[0152] In some embodiments, the first rotating member 212 further includes a first rotating shaft 214, and the first hinged portion 2122 is hingedly connected to the second hinged portion 2132 via the first rotating shaft 214;

[0153] In some embodiments, at least a portion of the second hinge portion 2132 is embedded in the first hinge portion 2122, so that the structure of the hinge mechanism 12 is more compact.

[0154] like Fig.10 As shown, in some embodiments, on the cross-section of the base assembly 100 in the thickness direction, the width of the accommodating space 303 gradually increases from the base assembly 100 to the first rotating shaft 214, and the width of the accommodating space 303 gradually decreases from the first rotating shaft 214 to the other end of the second rotating member 213. In this way, the width of the accommodating space 303 gradually increases from the base assembly 100 to the first rotating shaft 214, fully avoiding the flexible display screen 11, so that it can be bent smoothly to reduce stress concentration. The width of the accommodating space 303 gradually decreases from the first rotating shaft 214 to the other end of the second rotating member 213, so that the flexible display screen 11 gradually fits away from the base assembly 100. That is, it is conducive to realizing the lightness and thinness of the foldable electronic device 10, and the flexible display screen 11 is smoothly bent, which improves the bending service life.

[0155] In some embodiments, the base assembly 100 includes a first support surface 121. When the hinge mechanism 12 is in an unfolded state, the support assembly 300 cooperates with the first support surface 121 to form a support structure. When the hinge mechanism 12 is in a folded state, the support assembly 300 and the connecting rod component 200 are arranged at an angle relative to the first support surface 121 to form a receiving space 303; the other end of the first rotating member 212 and one end of the second rotating member 213 are arranged at intervals from the first support surface along the thickness direction of the base assembly 100, so that the support assembly 300 is arranged at intervals from the first support surface 121. In this way, when the hinge mechanism 12 is in a folded state, the other end of the first rotating member 212 and one end of the second rotating member 213 are arranged at intervals from the first support surface 121 along the thickness direction of the base assembly 100, so that the support assembly 300 can be arranged away from the base assembly 100, thereby giving space to the flexible display screen 11. That is, when the flexible display screen 11 requires a larger bending space, the support component 300 is disposed away from the base component 100, so that the troughs or crests of the flexible display screen 11 when bending are staggered as much as possible with the support component 300 in the thickness direction after the foldable electronic device 10 is folded, thereby reducing or avoiding partial overlap between the troughs or crests of the flexible display screen 11 and the support component 300, thereby making the overall thickness of the foldable electronic device 10 smaller after folding, thereby facilitating the thinning and lightening of the foldable electronic device 10.

[0156] It should be noted that the flexible transmission element includes at least one flexible printed circuit board (FPC) that can realize the electrical connection of electronic devices on different shell bodies.

[0157] Based on any of the above embodiments, Figure 4 As shown, in some embodiments, the first rotating member 212 is parallel to the rotation axis of the base assembly 100, and the third rotating member 221 is parallel to the rotation axis of the base assembly 100 and is not coaxial. In this way, the first rotating member 212 and the third rotating member 221 respectively form a connecting rod mechanism with the base assembly 100, and the first rotating member 212 is rotatably connected with the third rotating member 221, so that during the synchronous rotation of the first rotating member 212 and the third rotating member 221, a driving force can be generated to drive the support assembly 300 to slide relative to the third rotating member 221.

[0158] Based on any of the above embodiments, Figure 5 , Figure 6 as well as Fig.10As shown, in some embodiments, the base assembly 100 includes a first support surface 121, and the support assembly 300 includes a moving member 310 and a supporting member 320. The moving member 310 is rotatably connected to the supporting member 320, and the moving member 310 is rotatably connected to the first rotating member 212 and is slidably connected to the third rotating member 221. When the hinge mechanism 12 is in an unfolded state, the supporting member 320 cooperates with the first supporting surface 121 to form a supporting structure. When the hinge mechanism 12 is in a folded state, the supporting member 320 is arranged at an angle relative to the first supporting surface 121 to form a receiving space 303. In this way, when the foldable electronic device 10 switches from the folded state to the opened state, the hinge mechanism 12 also switches from the folded state to the unfolded state, and the connecting rod assemblies on both sides of the base assembly 100 rotate around the base assembly 100, so that when the first rotating member 212 and the third rotating member 221 rotate along the base assembly 100, the third rotating member 221 can drive the moving member 310 to rotate, and the first rotating member 212 drives the moving member 310 to slide along the length direction of the third rotating member 221 and is arranged close to the base assembly 100. At this time, the supporting member 320 is opened to the supporting state while the moving member 310 moves, until the supporting member 320 cooperates with the first supporting surface 121 to form a supporting structure, so that the flexible display screen 11 is supported by the supporting structure. When the foldable electronic device 10 is switched from the open state to the folded state, the hinge mechanism 12 is also switched from the unfolded state to the folded state, so that when the first rotating member 212 and the third rotating member 221 rotate along the base assembly 100, the third rotating member 221 can drive the moving member 310 to rotate, and the first rotating member 212 drives the moving member 310 to slide along the length direction of the third rotating member 221 and be arranged away from the base assembly 100. At this time, in the process of the support member 320 moving with the moving member 310, the support member 320 is arranged at an angle relative to the first supporting surface 121 to form an accommodating space 303, until the foldable electronic device 10 is in the folded state, so that part of the flexible display screen 11 can be bent in the accommodating space 303, which can reduce the bending stress on the flexible display screen 11 and improve the service life of the flexible display screen 11.

[0159] It should be noted that “arranged at an angle” includes acute angles, right angles and obtuse angles, but does not include straight angles.

[0160] Based on the above embodiments, Figure 5 , Figure 6 as well as Fig.10As shown, in some embodiments, the first rotating member 212 includes at least a second supporting surface 210a, and the supporting member 320 includes a third supporting surface 302. When the hinge mechanism 12 is in the unfolded state, the second supporting surface 210a is located on the same supporting surface as the first supporting surface 121 and the third supporting surface 302. The first rotating member 212 includes a stop surface, and when the hinge mechanism 12 is in the folded state, the stop surface abuts against the supporting member 320. In this way, when the foldable electronic device 10 switches from the folded state to the open state, the hinge mechanism 12 also switches from the folded state to the unfolded state, and the connecting rod assemblies on both sides of the base assembly 100 rotate around the base assembly 100, so that when the first rotating member 212 and the third rotating member 221 rotate along the base assembly 100, the moving member 310 can be driven to rotate by the third rotating member 221, and the first rotating member 212 drives the moving member 310 to slide along the length direction of the third rotating member 221, and is arranged close to the base assembly 100. At this time, the support member 320 is opened to the supporting state in the process of moving with the moving member 310, until the second supporting surface 210a is located on the same supporting surface as the first supporting surface 121 and the third supporting surface 302, respectively, to support the flexible display screen 11. When the foldable electronic device 10 is switched from the open state to the folded state, the hinge mechanism 12 is also switched from the unfolded state to the folded state, so that when the first rotating member 212 and the third rotating member 221 rotate along the base assembly 100, the third rotating member 221 can drive the moving member 310 to rotate, and the first rotating member 212 drives the moving member 310 to slide along the length direction of the third rotating member 221 and be set away from the base assembly 100. At this time, in the process of moving the support member 320 with the moving member 310, the support member 320 is set at an angle relative to the first supporting surface 121 to form a receiving space 303, and the stop surface is used.

[0161] In some embodiments, the transmission member 211 includes at least two rotating members. One end of the transmission member 211 is rotationally connected to the third rotating member 221. Different rotating members are rotationally connected, one of the rotating members is rotationally connected to the other end of the transmission member 211 and rotates with the base assembly 100, and the other rotating member is rotationally connected to the moving member 310. In this way, one of the rotating members is rotationally connected to the base assembly 100 and synchronously rotationally connected to the third rotating member 221 through the transmission member 211, so that the rotating member can drive the rotating member rotationally connected to the moving member 310 to rotate, thereby driving the moving member 310 to move along the length direction of the third rotating member 221.

[0162] In combination with the aforementioned embodiment, the first supporting surface 121 may be disposed on a rotating member rotatably connected to the base assembly 100 , and the abutting surface may be disposed on the transmission member 211 .

[0163] In some embodiments, when the support member 320 cooperates with the first support surface 121 to form a support structure, the support member 320 may also abut against the abutment surface to ensure that the support member 320 is fixed reliably.

[0164] Furthermore, if Figure 4 As shown, in some embodiments, the rotation axes of the transmission member 211 and the third rotating member 221, the rotation axes of the rotating member and the moving member 310, and the rotation axes of the third rotating member 221 and the base assembly 100 are located in the same plane. In this way, the movement of the first connecting assembly, the third rotating member 221, and the moving member 310 is smoother, the foldable device switches between the folded state and the open state more smoothly, and the user experience is good.

[0165] Optionally, in some embodiments, the other end of the transmission member 211 includes two first rotating parts 2111 disposed at intervals, and part of the rotating member is disposed between the two first rotating parts 2111 and is rotationally connected to the two first rotating parts 2111. In this way, part of the rotating member is disposed between the two first rotating parts 2111, and the rotational connection length is large, so that the connection between the transmission member 211 and the rotating member is more reliable and tight.

[0166] Further, in some embodiments, the first connecting assembly includes a first rotating shaft 214, the first rotating portion 2111 is provided with a first through hole 201, the rotating member is provided with a second through hole 204 coaxially arranged with the first through hole 201, and the first rotating shaft 214 is passed through the first through hole 201 and the second through hole 204. In this way, the first rotating shaft 214 is rotatably matched with the first through hole 201 and the second through hole 204 to realize the rotational connection between the transmission member 211 and the rotating member, which is easy to implement and the connection is reliable.

[0167] Optionally, in some embodiments, one end of the transmission member 211 is provided with a second rotating portion 2112, and the second rotating portion 2112 is hinged to the third rotating member 221. Thus, the second rotating portion 2112 is hinged to the second connecting rod, so that the transmission member 211 and the third rotating member 221 are reliably connected in rotation.

[0168] like Figures 5 to 13As shown, in some embodiments, the rotating member includes a first rotating member 212 and a second rotating member 213. One end of the first rotating member 212 is rotatably connected to the base assembly 100, and the third rotating member 221 is rotatably connected to the base assembly 100. The other end of the first rotating member 212 is rotatably connected to one end of the second rotating member 213 and the other end of the transmission member 211, and the other end of the second rotating member 213 is rotatably connected to the moving member 310. In this way, when the foldable electronic device 10 switches from the folded state to the open state, the hinge mechanism 12 also switches from the folded state to the unfolded state, and the connecting rod assemblies on both sides of the base assembly 100 rotate around the base assembly 100, so that when the first rotating member 212 and the third rotating member 221 rotate along the base assembly 100, the moving member 310 can be driven to rotate by the third rotating member 221, and the first rotating member 212 and the second rotating member 213 can be driven to rotate synchronously by the transmission member 211. During this process, the second rotating member 213 drives the moving member 310 to slide along the length direction of the third rotating member 221 and is arranged close to the base assembly 100. At this time, the support member 320 is opened to the supporting state while the moving member 310 moves, until the support member 320 cooperates with the first supporting surface 121 to form a supporting structure, so as to support the flexible display screen 11 with the supporting structure. When the foldable electronic device 10 is switched from the open state to the folded state, the hinge mechanism 12 is also switched from the unfolded state to the folded state, and the connecting rod assemblies on both sides of the base assembly 100 rotate around the base assembly 100, so that when the first rotating member 212 and the third rotating member 221 rotate along the base assembly 100, the moving member 310 can be driven to rotate by the third rotating member 221, and the first rotating member 212 and the second rotating member 213 can be driven to rotate synchronously by the transmission member 211. During this process, the second rotating member 213 drives the moving member 310 to slide along the length direction of the third rotating member 221 and is arranged away from the base assembly 100. At this time, when the support member 320 moves with the moving member 310, the support member 320 is set at an angle relative to the first supporting surface 121 to form a receiving space 303, until the foldable electronic device 10 is in a folded state, so that part of the flexible display screen 11 can be bent in the receiving space 303, which can reduce the bending stress on the flexible display screen 11 and improve the service life of the flexible display screen 11.

[0169] Based on the above embodiments, Figure 4As shown, in some embodiments, there is a first rotation axis between the first rotating member 212 and the base assembly 100, a second rotation axis between the first rotating member 212 and the second rotating member 213, a third rotation axis between the second rotating member 213 and the moving member 310, and the first rotation axis, the second rotation axis and the third rotation axis are parallel to each other, and the second rotation axis is located between the first rotation axis and the third rotation axis. In this way, in the process of the first rotating member 212 driving the moving member 310 to move, since the first rotation axis, the second rotation axis and the third rotation axis are parallel to each other, and the second rotation axis is located between the first rotation axis and the third rotation axis, the first rotating member 212 and the second rotating member 213, the transmission member 211 and the first rotating member 212 and the second rotating member 213, and the second rotating member 213 and the moving member 310 do not interfere with each other, the movement is smooth, the jamming is reduced, and the operation experience of the foldable electronic device 10 is improved.

[0170] like Figures 5 to 13 As shown, in some embodiments, one end of the first rotating member 212 includes a first guide portion 2121, the base assembly 100 is provided with a first arc groove 110, and the first guide portion 2121 is rotatably matched with the first arc groove 110. In this way, by utilizing the rotatable match between the first guide portion 2121 and the first arc groove 110, a portion of the first rotating member 212 can be embedded in the base assembly 100 for movement, avoiding the formation of a connection convex point to press the flexible display screen 11, so that the flexible display screen 11 can be evenly arranged on the hinge mechanism 12.

[0171] Optionally, the first guide portion 2121 is in an arc shape and can be inserted into the first arc groove 110. In this way, the width space (X-axis direction) of the base assembly can be fully utilized to accommodate the first guide portion 2121, making the hinge mechanism more compact, which is conducive to realizing the thinness of the foldable electronic device.

[0172] like Figure 6 as well as Figures 9 to 11 As shown, in some embodiments, the other end of the first rotating member 212 is provided with a first hinged portion 2122, and one end of the second rotating member 213 is provided with a second hinged portion 2132, and a portion of the second hinged portion 2132 is embedded in and hinged to the first hinged portion 2122. In this way, a portion of the second rotating member 213 is disposed between the two first hinged portions 2122, so that the connection between the transmission member 211 and the rotating member is more reliable and tight.

[0173] On the basis of the above embodiments, in some embodiments, the first connecting component includes a first rotating shaft 214, the first hinge portion 2122 includes at least two first rotating bodies 202 arranged at intervals, a first notch 203 is formed between two adjacent first rotating bodies 202, and the first rotating body 202 is provided with a second through hole 204; the second hinge portion 2132 includes at least two second rotating bodies 205 arranged at intervals, a second notch 206 is formed between two adjacent second rotating bodies 205, and the second rotating body 205 is provided with a third through hole 207, one of the second rotating bodies 205 is inserted into the first notch 203, and one of the first rotating bodies 202 is inserted into the second notch 206, so that the second through hole 204 and the third through hole 207 are coaxially arranged, and the first rotating shaft 214 is penetrated through the second through hole 204 and the third through hole 207. In this way, the first notch 203 formed by two adjacent first rotating bodies 202 is used to accommodate the second rotating body 205, and the second notch 206 formed by two adjacent second rotating bodies 205 is used to accommodate the first rotating body 202, so that the first rotating member 212 and the second rotating member 213 are nested with each other, the two are tightly connected, the rotation connection length is large, and the force strength is high. Then, the first rotating shaft 214 is used to rotate with the second through hole 204 and the third through hole 207 to realize the rotation connection between the first rotating member 212 and the second rotating member 213, which is easy to implement and reliable.

[0174] Furthermore, if Figure 6 as well as Figures 9 to 11 As shown, in some embodiments, the other end of the transmission member 211 includes two first rotating parts 2111 arranged at intervals, the first rotating part 2111 is provided with a first through hole 201, the first rotating body 202 and the second rotating body 205 are arranged between the two first rotating parts 2111, and the first through hole 201, the second through hole 204 and the third through hole 207 are arranged coaxially, and the first rotating shaft 214 is penetrated in the first through hole 201, the second through hole 204 and the third through hole 207. In this way, the first rotating body 202 and the second rotating body 205 are arranged between the two first rotating parts 2111, so that the three are nested with each other, the connection is tight, the rotation connection length is large, and the force strength is high. Then, the first rotating shaft 214 is used to rotate with the first through hole 201, the second through hole 204 and the third through hole 207 to realize the rotation connection of the other end of the transmission member 211 with the first rotating member 212 and the second rotating member 213 respectively, which has a compact structure, is easy to implement, and has reliable connection.

[0175] like Figure 6 as well as Figures 9 to 11As shown, in some embodiments, the first connecting component includes a second rotating shaft 215, the other end of the second rotating member 213 includes a third hinged portion 2133, the third hinged portion 2133 includes at least two third rotating bodies 208 arranged at intervals, a third notch 209 is formed between two adjacent third rotating bodies 208, and the third rotating body 208 is provided with a fourth through hole 2010; the moving member 310 includes at least two mounting bodies 311 arranged at intervals, a fourth notch 312 is formed between two adjacent mounting bodies 311, the mounting body 311 is provided with a rotation groove 3111, one of the mounting bodies 311 is inserted into the third notch 209, one of the third rotating bodies 208 is inserted into the fourth notch 312, the fourth through hole 2010 is coaxially arranged with the rotation groove 3111, and the second rotating shaft 215 is penetrated through the fourth through hole 2010 and the rotation groove 3111. In this way, the third notch 209 formed by two adjacent third rotating bodies 208 is used to accommodate the mounting body 311, and the fourth notch 312 formed by two adjacent mounting bodies 311 is used to accommodate the third rotating body 208, so that the second rotating member 213 and the moving member 310 are mutually nested, and the two are tightly connected, the rotation connection length is large, and the force strength is high. Then, the second rotating shaft 215 is connected to the fourth through hole 2010, and the second rotating shaft 215 is sleeved in the rotating groove 3111, so that the second rotating member 213 is rotatably connected to the moving member 310, which is easy to implement and reliable.

[0176] Based on any of the above embodiments, Figure 6 , Figure 8 , Fig. 9 , Figure 12 to Figure 13 As shown, in some embodiments, the connecting rod component 200 includes a third rotating member 221, a first connecting rod assembly 210211, and the supporting assembly 300 includes a moving member 310. The third rotating member 221 is rotatably connected to the base assembly 100 and the transmission member 211, respectively, and the third rotating member 221 is slidably connected to the moving member 310. In this way, the transmission member 211 is used to drive the third rotating member 221 and the transmission member 211 to rotate synchronously, so that the transmission member 211 is used to drive the first rotating member 212 and the moving member 310 to rotate synchronously, so that the first rotating member 212 is used to drive the moving member 310 to slide along the third rotating member 221.

[0177] Specifically, refer to Figure 5 as well as Figure 6 , Figures 10 to 13As shown, when the foldable electronic device 10 switches from the folded state to the opened state, the hinge mechanism 12 also switches from the folded state to the unfolded state, and the connecting rod assemblies on both sides of the base assembly 100 rotate around the base assembly 100, so that when the first rotating member 212 and the third rotating member 221 rotate synchronously along the base assembly 100, the third rotating member 221 can drive the moving member 310 to rotate, and the first rotating member 212 drives the moving member 310 to slide along the length direction of the third rotating member 221 and is arranged close to the base assembly 100. At this time, the supporting member 320 is opened to the supporting state during the movement of the moving member 310, until the supporting member 320 cooperates with the first supporting surface 121 to form a supporting structure, so as to use the supporting structure to support the flexible display screen 11. When the foldable electronic device 10 is switched from the open state to the folded state, the hinge mechanism 12 is also switched from the unfolded state to the folded state, so that when the first rotating member 212 and the third rotating member 221 rotate along the base assembly 100, the third rotating member 221 can drive the moving member 310 to rotate, and the first rotating member 212 drives the moving member 310 to slide along the length direction of the third rotating member 221 and be arranged away from the base assembly 100. At this time, in the process of the support member 320 moving with the moving member 310, the support member 320 is arranged at an angle relative to the first supporting surface 121 to form an accommodating space 303, until the foldable electronic device 10 is in the folded state, so that part of the flexible display screen 11 can be bent in the accommodating space 303, which can reduce the bending stress on the flexible display screen 11 and improve the service life of the flexible display screen 11.

[0178] Furthermore, if Figure 6 , Figure 8 , Fig. 9 , Figure 12 to Figure 13 As shown, in some embodiments, the third rotating member 221 includes a third rotating portion 2211 and a second guide portion 2322. The third rotating portion 2211 is rotatably connected to the base assembly 100. The moving member 310 is provided with a slide groove 301 that slidably cooperates with the second guide portion 2322. In this way, the third rotating member 221 is rotatably connected to the base assembly 100 through the third rotating portion 2211. In the process of driving the moving member 310 to rotate, the moving member 310 is driven by the first rotating member 212 to slide along the length direction of the second guide portion 2322.

[0179] In combination with the aforementioned first rotating member 212 and the second rotating member 213, when the foldable electronic device 10 switches from the folded state to the opened state, the hinge mechanism 12 also switches from the folded state to the unfolded state, and the connecting rod assemblies on both sides of the base assembly 100 rotate around the base assembly 100, so that when the first rotating member 212 and the third rotating member 221 rotate synchronously along the base assembly 100, the first rotating member 212 and the transmission member 211 can be driven to rotate the moving member 310 by the third rotating member 221, and the second rotating member 213 is driven to rotate in a set direction, so as to drive the moving member 310 to slide along the length direction of the second guide portion 2322 and be arranged close to the base assembly 100. At this time, the support member 320 is opened to the supporting state in the process of moving with the moving member 310, until the support member 320 cooperates with the first supporting surface 121 to form a supporting structure, so as to use the supporting structure to support the flexible display screen 11. When the foldable electronic device 10 switches from the open state to the folded state, the hinge mechanism 12 also switches from the unfolded state to the folded state, so that when the first rotating member 212 and the third rotating member 221 rotate along the base assembly 100, the first rotating member 212 and the transmission member 211 can be driven to rotate by the third rotating member 221, and the second rotating member 213 is driven to rotate in a set direction, so as to drive the moving member 310 to slide along the length direction of the second guide portion 2322 and be set away from the base assembly 100. At this time, in the process of the support member 320 moving with the moving member 310, the support member 320 is set at an angle relative to the first supporting surface 121 to form an accommodating space 303, until the foldable electronic device 10 is in the folded state, so that part of the flexible display screen 11 can be bent in the accommodating space 303, which can reduce the bending stress on the flexible display screen 11 and improve the service life of the flexible display screen 11.

[0180] It should be noted that there may be many specific implementations of the second guide portion 2322, including but not limited to a guide rod, a guide block, a guide bar, a guide rod, etc.

[0181] In addition, the "second guide portion 2322" can be "a part of the third rotating member 221", that is, the "second guide portion 2322" and the "other parts of the third rotating member 221, such as the third rotating portion 2211" are manufactured as one piece; it can also be an independent component that can be separated from the "other parts of the third rotating member 221, such as the third rotating portion 2211", that is, the "second guide portion 2322" can be manufactured independently, and then combined with the "other parts of the third rotating member 221, such as the third rotating portion 2211" into a whole.

[0182] Equivalently, "some body" or "some part" can be a part of the corresponding "component", that is, "some body" or "some part" can be integrally formed with the "other parts of the component"; or it can be an independent component that can be separated from the "other parts of the component", that is, "some body" or "some part" can be independently manufactured and then combined with the "other parts of the component" into a whole. The expression of the above-mentioned "some body" or "some part" in this disclosure is only one of the embodiments, for the convenience of reading, and not to limit the scope of protection of this disclosure. As long as it contains the above-mentioned features and has the same function, it should be understood as an equivalent technical solution of this disclosure.

[0183] Furthermore, if Figure 6 , Figure 8 , Fig. 9 , Figure 12 to Figure 13 As shown, in some embodiments, the third rotating member 221 further includes a fourth rotating portion 2213, the fourth rotating portion 2213 is located between the second guide portion 2322 and the third rotating portion 2211, and the fourth rotating portion 2213 is rotatably connected to the transmission member 211. In this way, the fourth rotating portion 2213 is disposed between the second guide portion 2322 and the third rotating portion 2211, and is rotatably connected to the transmission member 211, so that a four-bar linkage is formed between the third rotating member 221, the transmission member 211, the first rotating member 212, and the base assembly 100. Through the deformation of the four-bar linkage, the moving member 310 is driven to rotate along the third rotating member 221, and the second rotating member 213 is used to drive the moving member 310 to move along the guide direction of the second guide portion 2322, and the moving moving member 310 is used to drive the supporting member 320 to rotate, so as to realize switching between the supporting state and the supporting state, and the transmission is reliable.

[0184] Optionally, in some embodiments, the third rotating member 221 includes a third rotating shaft 222 mounted on the base assembly 100, and the third rotating portion 2211 includes a first rotating hole 2001 that is rotatably matched with the third rotating shaft 222. The fourth rotating portion 2213 includes a fourth rotating shaft 223, and the fourth rotating shaft 223 is rotatably connected to the transmission member 211. In this way, the third rotating member 221 is rotatably arranged on the base assembly 100 by using the third rotating shaft 222 mounted on the base assembly 100 to match the first rotating hole 2001. Then, the third rotating member 221 is rotatably connected to the transmission member 211 by using the rotatable connection between the fourth rotating shaft 223 and the transmission member 211, which has a compact structure and is easy to implement.

[0185] like Figure 6 , Figure 8 , Fig. 9 , Figure 12 to Figure 13As shown, in some embodiments, the second guide portion 2322 includes a guide body 2002 extending from the fourth rotating portion 2213 to a side away from the third rotating portion 2211, and the guide body 2002 is slidably matched with the slide groove 301. In this way, the moving member 310 is slidably matched with the guide body 2002 through the slide groove 301, and can drive the support member 320 to switch between the supporting state and the supporting state, so that the support member 320 can support the flexible display screen 11 in the supporting state, and can form a accommodating space 303 in the supporting state to avoid the flexible display screen 11.

[0186] like Fig.12 as well as Fig.13 As shown, in some embodiments, the third rotating member 221 includes a receiving recess 2214, which is disposed between the second guide portion 2322 and the third rotating portion 2211; when the hinge mechanism 12 is in a folded state, the receiving recess 2214, the third supporting surface 302 and the first supporting surface 121 enclose a receiving space 303. In this way, the receiving recess 2214 can better adapt to the curvature of the flexible display screen 11, and the shape of the receiving recess 2214 can be designed according to the curvature of the flexible display screen 11, so as to form the receiving space 303 and fit the flexible display screen 11 to support the bending of the flexible display screen 11.

[0187] It should be noted that the accommodating recess 2214 can be implemented in various forms, including a circular arc groove, an elliptical arc groove, a water drop groove, and the like.

[0188] Optionally, the third rotating member 221 includes a support body 2215 rotatably connected to the base assembly 100 and an arc-shaped body 2216 connected to the support body 2215, the support body 2215 is provided with a third rotating portion 2211, and the arc-shaped body 2216 is used to form a receiving recess 2214. In this way, when the hinge mechanism 12 is in the unfolded state, the support member 320 cooperates with the first supporting surface 121 and the support body 2215 to form a supporting structure. When the hinge mechanism 12 is in the folded state, the support member 320 and the arc-shaped body 2216 are arranged at an angle relative to the first supporting surface 121 to form a receiving space 303.

[0189] In addition, the arrangement of the arc body 2216 is also conducive to inserting the guide body 2002 under the moving member 310 so as to be arranged away from the first supporting surface 121, so that the transition between the supporting body 2215 and the guide body 2002 is smooth and interference is reduced.

[0190] In an exemplary embodiment, when the hinge mechanism 12 is in the folded state, the two third rotating members 221 are arranged opposite to each other, and the arc-shaped bodies 2216 of the two third rotating members 221 can form a receiving space 303 .

[0191] In some embodiments, the hinge mechanism 12 further includes a synchronous gear and a damping assembly 500, and the synchronous gear and the damping assembly 500 are arranged on the third rotating shaft 222. In this way, the synchronous gear and the damping assembly 500 are arranged on the third rotating shaft 222 to realize synchronous belt damping rotation of at least two sets of third rotating members 221, so that the foldable electronic device 10 will not rotate easily, and is convenient to use.

[0192] Based on any of the above embodiments of the moving member 310, Figure 5 , Figure 6 , Figure 8 , Fig.12 as well as Fig.13 As shown, in some embodiments, the moving member 310 is provided with a first arc-shaped guide portion 313, and the supporting member 320 is provided with a second arc-shaped guide portion 321, and the first arc-shaped guide portion 313 is connected with the second arc-shaped guide portion 321 in a guiding manner so that the moving member 310 is rotatably connected with the supporting member 320. In this way, the moving member 310 is rotatably connected with the supporting member 320 by using the first arc-shaped guide portion 313 and the second arc-shaped guide portion 321 to guide and connect, and the rotation range is controllable.

[0193] It should be noted that the first arc-shaped guide portion 313 and the second arc-shaped guide portion 321 may be matched in various forms, including but not limited to an arc-shaped slide rail structure, an arc-shaped guide rail guide block structure, a hinge structure, and the like.

[0194] Furthermore, if Figure 6 , Figure 8 , Fig.12 as well as Fig.13 As shown, in some embodiments, one of the first arc-shaped guide portion 313 and the second arc-shaped guide portion 321 is provided with a second arc-shaped groove 304, and the other is provided with a second arc-shaped body 305, and the second arc-shaped body 305 is guided and matched with the second arc-shaped groove 304. In this way, by inserting the second arc-shaped body 305 into the second arc-shaped groove 304, rotational matching is achieved, so that part of the support member 320 can be embedded in the moving member 310 for movement. It is avoided that the connection convex point is formed to press the flexible display screen 11, so that the flexible display screen 11 can be evenly arranged on the hinge mechanism 12.

[0195] Furthermore, if Figures 10 to 13As shown, in some embodiments, the moving member 310 is provided with an avoidance surface 314. On the cross-sectional surface in the thickness direction of the hinge mechanism 12, the closer the avoidance surface 314 is to the side wall of the base assembly 100, the farther it is from the first support surface 121. When the hinge mechanism 12 is in the unfolded state, part of the support member 320 is arranged away from the avoidance surface 314. When the hinge mechanism 12 is in the folded state, the support member 320 is arranged in contact with or close to the avoidance surface 314. In this way, by using the avoidance surface 314, when the hinge mechanism 12 is in the unfolded state, part of the support member 320 is arranged away from the avoidance surface 314 and abuts against the first rotating member 212, and another part of the support member 320 abuts against the avoidance surface 314, so that the support member 320 can reliably provide a supporting force. When the hinge mechanism 12 is in the folded state, the support member 320 is arranged in contact with or close to the avoidance surface 314, and then avoidance can be formed to form the accommodating space 303.

[0196] It should be noted that there may be many ways to set the “avoidance surface 314 ”, including but not limited to an avoidance slope and an avoidance arc surface, as long as an avoidance space that does not interfere with the movement of the support member 320 can be formed.

[0197] like Figures 10 to 13 As shown, in some embodiments, the support member 320 is a support plate 120, and the avoidance surface 314 is an avoidance slope that fits with the support member 320. On the cross-sectional surface in the thickness direction of the hinge mechanism 12, the avoidance slope is inclined downward from one end away from the base assembly 100 to the other end close to the base assembly 100, so as to be gradually away from the first support surface 121. In this way, by using the avoidance slope, when the hinge mechanism 12 is in the unfolded state, one end of the support member 320 is arranged away from the other end of the avoidance slope and abuts against the first rotating member 212, and the other end of the support member 320 abuts against one end of the avoidance slope. In the process of switching the hinge mechanism 12 from the unfolded state to the folded state, one end of the support member 320 is gradually arranged close to the other end of the avoidance slope until the support member 320 fits with the avoidance slope, and the support member 320 can be reliably supported by the avoidance slope.

[0198] Similarly, the support member 320 is an arc-shaped plate, and the avoidance surface 314 is an avoidance arc surface that fits with the support member 320. On the cross-sectional surface in the thickness direction of the hinge mechanism 12, the avoidance arc surface bends downward from one end away from the base assembly 100 to the other end close to the base assembly 100, so as to be gradually away from the first support surface 121. In this way, by using the avoidance arc surface, when the hinge mechanism 12 is in the unfolded state, one end of the support member 320 is arranged away from the other end of the avoidance arc surface and abuts against the first rotating member 212, and the other end of the support member 320 abuts against one end of the avoidance arc surface. In the process of switching the hinge mechanism 12 from the unfolded state to the folded state, one end of the support member 320 is gradually arranged close to the other end of the avoidance arc surface until the support member 320 fits with the avoidance arc surface, and the support member 320 can be reliably supported by the avoidance arc surface.

[0199] Based on any of the above embodiments of the moving member 310, in some embodiments, the hinge mechanism 12 further includes a damping assembly 500, and the damping assembly 500 cooperates with the first connecting rod assembly 210 and / or the second connecting rod assembly 220 with damping rotation. In this way, by providing the damping assembly 500, the connecting rod component 200 can be connected to the base assembly 100 with damping rotation, so that the foldable electronic device 10 will not rotate easily, and is easy to use.

[0200] It should be noted that the damping assembly 500 can be disposed on any one of the first rotating shaft 214 , the second rotating shaft 215 , the third rotating shaft 222 , and the fourth rotating shaft 223 as long as the above requirements are met.

[0201] In some embodiments, the damping assembly 500 is mounted on the third rotating shaft 222. Thus, the damping assembly 500 is mounted on the third rotating shaft 222 to realize the damped rotation of at least two sets of second link assemblies 220, so that the foldable electronic device 10 does not rotate easily and is easy to use.

[0202] Furthermore, if Figure 5 , Figure 7 as well as Fig.23As shown, in some embodiments, the third rotating member 221 includes a third rotating shaft 222 and a matching portion 224, the damping assembly 500 includes an elastic member 520, a first damping member 530 and a mounting member 510 fixedly connected to the base assembly 100, one end of the third rotating shaft 222 is fixed to the mounting member 510, and the other end is fixed to the base assembly 100, the elastic member 520 and the first damping member 530 are sleeved on the third rotating shaft 222, and the elastic member 520 is arranged between the mounting member 510 and the first damping member 530; one of the first damping member 530 and the matching portion 224 is provided with a pressing protrusion 531, and the other is provided with a pressure-bearing surface 2241 that abuts against the pressing protrusion 531 and a second groove 2242 that accommodates the pressing protrusion 531. When the third rotating member rotates, the pressing protrusion abuts against the pressure-bearing surface, so that the third rotating member rotates with damping. To achieve hovering motion. When the hinge mechanism is in the folded state, the pressing protrusion is disposed in the second groove, so that the third rotating member is fixed relative to the base assembly and drives the supporting member to rotate toward the unfolded state, so that the foldable electronic device can be fixed in the folded state (a greater force is required to rotate), which is convenient for users to carry.

[0203] When the hinge mechanism is in the unfolded state, the pressing protrusion is disposed in the second groove, so that the third rotating member is fixed relative to the base assembly and drives the supporting member to rotate toward the folded state, so that the foldable electronic device can be fixed in the unfolded state (a greater force is required to rotate), which is convenient for users to use the large screen.

[0204] In this way, when the hinge mechanism 12 is in the folded state, the support member 320 is in the supporting state, and the pressing protrusion 531 is arranged in the second groove 2242, so that the connecting rod component 200 is fixed relative to the base assembly 100, and the supporting member 320 is driven toward the supporting state. In addition, under the action of the elastic member 520, a greater rotational force needs to be applied to enable the pressing protrusion 531 to break away from the second groove 2242 and enter the pressure-bearing surface 2241, so that the flexible display screen 11 of the foldable electronic device 10 can be firmly fixed in the folded state, so as to facilitate the user to carry it. When the hinge mechanism 12 is in the unfolded state, the support member 320 is in the supporting state, and the pressing protrusion 531 is arranged in the second groove 2242, so that the connecting rod component 200 is fixed relative to the base assembly 100, and the supporting member 320 is driven toward the supporting state. In addition, under the action of the elastic member 520, a greater rotational force needs to be applied to enable the pressing protrusion 531 to disengage from the second groove 2242 and enter the pressure-bearing surface 2241, so that the flexible display screen 11 of the foldable electronic device 10 can be firmly fixed when in the unfolded state, so as to facilitate users to watch and operate the large-screen display.

[0205] Specifically, when the support member 320 is in the folded state and the unfolded state, the pressing protrusion 531 is arranged in the second groove 2242 to fix the connecting rod member 200 relative to the base assembly 100. In this way, when the hinge mechanism 12 is in the folded state, the support member 320 is in the supporting state, and the pressing protrusion 531 is arranged in the second groove 2242 to fix the connecting rod member 200 relative to the base assembly 100, and can only be driven in the direction of the supporting state of the support member 320. In addition, under the action of the elastic member 520, a greater rotational force needs to be applied to enable the pressing protrusion 531 to break away from the second groove 2242 and enter the pressure surface 2241, so that the flexible display screen 11 of the foldable electronic device 10 can be firmly fixed when in the folded state, so as to facilitate the user to carry it. When the hinge mechanism 12 switches from the folded state to the unfolded state, the user can apply a greater rotational force to move the shell body 13a and the other shell body 13a relative to each other. During this process, the pressing protrusion 531 will gradually break away from the second groove 2242 and move on the pressure-bearing surface 2241. At this time, the pressing protrusion 531 is resisted by the elastic member 520, and in the process of being relative to the pressure-bearing surface 2241, it will also provide rotation damping. When the pressing protrusion 531 falls into the second groove 2242 again, the folded state is in the unfolded state, the support member 320 is in the supporting state, and the pressing protrusion 531 is arranged in the second groove 2242, so that the connecting rod component 200 is fixed relative to the base frame assembly 100, and can only be driven along the direction of the supporting member 320 toward the supporting state. In addition, under the action of the elastic member 520, a greater rotational force needs to be applied to enable the pressing protrusion 531 to break away from the second groove 2242, so that it can be fixed firmly, so as to facilitate the user to watch and operate the large-screen display.

[0206] It should be noted that the third rotating member 221 and the matching portion 224 can be integrally formed and fixed, or can be manufactured separately and then fixed and transmission-connected separately.

[0207] It should be noted that there are other ways to implement the "damping component 500", for example, using a friction plate to increase the rotational friction of the rotating part; or using an elastic member 520 to increase the rotational resistance of the rotating part; or using a magnetic member to increase the rotational resistance of the rotating part, etc.

[0208] like Fig.24As shown, in some embodiments, the damping assembly 500 includes a damping ring 540 disposed on the third rotating shaft 222, the damping ring 540 is at least partially annular, and is frictionally matched with a portion of the base assembly 100. In this way, the damping ring 540 can be used to increase the rotational friction of the third rotating shaft 222, thereby increasing the rotational resistance that the third rotating shaft 222 needs to overcome, so that the third rotating shaft 222, and the housing (the first housing 13 or the second housing 14) and the support member 320 connected to the third rotating shaft 222 can be suspended and fixed within a set rotation range, which is convenient for users to use.

[0209] Optionally, the second damping member 550 is provided with a friction texture that is partially frictionally matched with the base assembly 100. In this way, the friction texture can be used to further increase the rotational friction force of the third rotating shaft 222, thereby achieving a better hovering and fixing effect.

[0210] The material of the second damping element 550 includes but is not limited to rubber, plastic, metal, ceramic and other materials.

[0211] In combination with any of the above embodiments, Fig.25 as well as Fig.26 As shown, in some embodiments, the damping assembly 500 further includes a second damping member 550, which is fixed in the base assembly 100, and the second damping member 550 is tightly and frictionally matched with the third rotating shaft 222 to at least increase the resistance of the third rotating shaft 222 when it is rotated from the unfolded state to the folded state. In this way, by tightly matching the second damping member 550 with the third rotating shaft 222, the resistance of the third rotating shaft 222 when it is rotated from the unfolded state to the folded state can be increased, so that the flexible display screen 11 of the foldable electronic device 10 can be locked and fixed in the unfolded state, so as to facilitate the user to watch and operate the large screen display.

[0212] Optionally, in some embodiments, the second damping member 550 is tightly matched with the third rotating shaft 222, which can increase the resistance that the third rotating shaft 222 needs to overcome within the rotation range. In this way, the flexible display screen 11 of the foldable electronic device 10 can be suspended and locked at any position during the bending process, so that the user can bend the flexible display screen 11 according to personal preference for use.

[0213] In an example, Fig.25 as well as Fig.26As shown, the second damping member 550 includes an elastically deformable mating groove 501, the inner wall of the mating groove 501 includes a first mating segment 551, a second mating segment 552, a third mating segment 553, a first protrusion 554 arranged between the first mating segment 551 and the second mating segment 552, and a second protrusion 555 arranged between the second mating segment 552 and the third mating segment 553, the second mating segment 552 is arranged between the first mating segment 551 and the third mating segment 553, the third rotating shaft 222 is inserted into the mating groove 501; when the third rotating shaft 222 rotates from the unfolded state to the folded state, the third rotating shaft 222 abuts against the first protrusion 554 and the second protrusion 555 to increase the rotation resistance of the third rotating shaft 222. In this way, the third shaft 222 can be inserted into the mating groove 501. When the third shaft 222 rotates from the unfolded state to the folded state, the third shaft 222 abuts against the first protrusion 554 and the second protrusion 555 to increase the rotation resistance of the third shaft 222, so that the flexible display screen 11 of the foldable electronic device 10 can be firmly fixed in the unfolded state, so as to facilitate users to watch and operate the large-screen display.

[0214] Optionally, in some embodiments, the third shaft 222 is a non-cylindrical column, and the matching groove 501 is adapted to the third shaft 222, such as the third shaft 222 is a flat shaft, and the matching groove 501 is a flat hole. In this way, the first convex body 554 and the second convex body 555 are conveniently used to abut against the third shaft 222, so as to increase the resistance that the third shaft 222 needs to overcome when switching from the unfolded state to the folded state.

[0215] Optionally, the second damping member 550 is further provided with a clearance hole 502 to adjust the elastic deformation of the second damping member 550. Through the elastic deformation, the third rotating shaft 222 can be separated from the first protrusion 554 and the second protrusion 555, so that the third rotating shaft 222 can enter a folded state.

[0216] Based on any of the above embodiments, in some embodiments, the connecting rod components 200 and the supporting components 300 are at least two groups respectively, and are respectively arranged on both sides of the base component 100 in a one-to-one manner; the folding mechanism 12 also includes a synchronization component 400, and the connecting rod components 200 correspondingly arranged on both sides of the base component 100 are connected in synchronous rotation through the synchronization component 400.

[0217] In some embodiments, the material parameters of at least some parts of the damping assembly 500 meet at least one of the following: 550HV ≥ surface hardness ≥ 450HV, yield strength ≥ 1600MPa, tensile strength ≥ 1700MPa. This is conducive to ensuring the hovering effect of the hinge mechanism 12 and improving the user experience of the foldable electronic device 10.

[0218] In some embodiments, the material parameters of the first damping member 530 satisfy at least one of the following: 550HV≥ surface hardness≥450HV, yield strength≥1600MPa, tensile strength≥1700MPa. In this way, the wear resistance of the first damping member 530 can be improved, and the hovering reliability of the hinge mechanism 12 can be improved.

[0219] Optionally, the above range includes 520HV≥ surface hardness≥470HV; or, 510HV≥ surface hardness≥490HV

[0220] 10000MPa≥yield strength≥1600MPa; or at least one combination of 10000MPa≥tensile strength≥1700MPa, etc.

[0221] like Figure 6 As shown, in some embodiments, the synchronization assembly 400 includes a first gear 410 and a second gear 420 that rotates synchronously with the first gear 410, the first gear 410 rotates synchronously with the third rotating shaft 222 of one group of connecting rod components 200, and the second gear 420 rotates synchronously with the third rotating shaft 222 of another group of connecting rod components 200.

[0222] It should be noted that the first gear 410 and the second gear 420 can be directly meshed or meshed with each other using other transmission gear spacings.

[0223] In addition, there are many ways to implement the synchronization component 400, including but not limited to the above-mentioned gear synchronous meshing transmission, and also include other synchronous rotation implementation methods, such as a pulley mechanism, a sprocket mechanism, etc.

[0224] like Figures 15 to 18As shown, based on any of the above embodiments, in some embodiments, the second rotating member 213 is provided with a support portion 2134, and the support portion 2134 is arranged near the other end of the first rotating member 212. During the folding or unfolding process of the hinge mechanism 12, the support portion 2134 lifts up the support member 320 so that the support member 320 and a portion of the first rotating member 212 form a first supporting surface. In this way, since the first rotating member 212 is rotatably connected to the base assembly 100, the first rotating member 212 is rotatably connected to the support assembly 300. The first rotating member 212 is rotatably connected to the third rotating member 221. The third rotating member 221 is rotatably connected to the base assembly 100, and the third rotating member 221 is slidably connected to the support assembly 300. When the first rotating member 212 and the third rotating member 221 rotate along the base assembly 100, the third rotating member 221 can drive the moving member 310 to rotate, and the transmission member 211 can synchronously drive the first rotating member 212 and the second rotating member 213 to rotate, so that the support member 320 can switch between the unfolded state and the folded state along with the hinge mechanism 12. When the hinge mechanism 12 is folded or unfolded, the support portion 2134 lifts the support member 320 so that the support member 320 and part of the first rotating member 212 form a first supporting surface. In this way, the hinge mechanism 12 can support the flexible display screen 11 through the first supporting surface in the moving state, thereby preventing the flexible display screen 11 from generating pits.

[0225] In addition, it is understandable that since the flexible display screen 11 does not produce pits, the flexible display screen 11 will not interfere with the internal components of the foldable electronic device 10, increasing the free space of the screen movement state, making the bending process of the flexible display screen 11 more free, improving the bending life, and thus improving the service life of the foldable electronic device 10. Equivalently, it is also helpful to reduce the difficulty of arranging the internal structure of the foldable electronic device 10.

[0226] Furthermore, the support portion 2134 lifts up the support member 320 so that the support member 320 and a portion of the first rotating member 212 form a first support surface, making the hinge mechanism 12 more compact in the length direction, that is, reducing the space occupied in the Y-axis direction, and freeing up more space for the torsion mechanism and the over-axis FPC.

[0227] It should be noted that the movement state of the hinge mechanism 12 includes the process of the hinge mechanism 12 switching from the unfolded state to the folded state and the process of the hinge mechanism 12 switching from the folded state to the unfolded state.

[0228] It should be noted that there may be many specific implementations of the support portion 2134, including structures such as a bulge, a protrusion, a bump, a convex column, etc., which can lift the support member 320 during the movement of the hinge mechanism 12.

[0229] like Figures 15 to 18 As shown, in some embodiments, the first rotating member 212 is provided with a second supporting surface 210a, and the supporting member 320 is provided with a third supporting surface 302. When the hinge mechanism 12 is in the unfolded state, the supporting portion 2134 is arranged to avoid the supporting member 320, and the second supporting surface 210a and the third supporting surface 302 cooperate to form a supporting structure. When the hinge mechanism 12 switches from the unfolded state to the folded state, or when the hinge mechanism 12 switches from the folded state to the unfolded state, the supporting portion 2134 lifts the supporting member 320 so that the second supporting surface 210a and the third supporting surface 302 form a first supporting surface. In this way, the foldable electronic device 10 can support the flexible display screen 11 by using the second supporting surface 210a and the third supporting surface 302 to form a supporting structure in the unfolded state, so that the flexible display screen 11 will not have pits, thereby improving the full-screen display quality of the foldable electronic device 10. And when the hinge mechanism 12 switches from the unfolded state to the folded state, or when the hinge mechanism 12 switches from the folded state to the unfolded state. The support member 320 is lifted up by the support portion 2134 so that the second support surface 210 a and the third support surface 302 form a support structure, which is easy to support the flexible display screen 11 and thus can prevent the flexible display screen 11 from having pits.

[0230] like Figures 15 to 18 As shown, optionally, in some embodiments, one end of the second rotating member 213 is provided with an avoidance recess 2135, and the support member 320 is provided with a guide portion 322. When the hinge mechanism 12 is in the unfolded state, the support portion 2134 is arranged to avoid the support member 320, and part of the guide portion 322 is embedded in the avoidance recess 2135, so that the second support surface 210a is close to the third support surface 302 to form a support structure. In this way, through the cooperation of the guide portion 322 and the avoidance recess 2135, the second rotating member 213 and the support member 320 can be prevented from interfering in the unfolded state, and the third support surface 302 can be prevented from tilting up to affect the support effect of the second support surface. In addition, the second support surface 210a and the third support surface 302 are as close as possible to improve the support effect. When the hinge mechanism 12 switches from the unfolded state to the folded state, or when the hinge mechanism 12 switches from the folded state to the unfolded state, the support portion 2134 lifts up the guide portion 322, so that the second support surface 210a and the third support surface 302 form a support structure, thereby not affecting the formation of the support structure.

[0231] It should be noted that the first supporting surface and the second supporting surface should be understood in a broad sense, and can support the flexible display screen 11. Specifically, the first supporting surface and the second supporting surface include but are not limited to the same plane, or between two parallel planes, as long as the supporting requirements are met.

[0232] like Fig.15 as well as Fig.17 As shown, in some embodiments, one end of the second rotating member 213 is provided with a connecting portion 2136 rotatably connected to the other end of the first rotating member 212, and the avoidance recess 2135 is arranged between the connecting portion 2136 and the supporting portion 2134. In this way, the avoidance recess 2135 is arranged between the connecting portion 2136 and the supporting portion 2134, so that the second rotating member 213 and the supporting member 320 are more closely matched, which is conducive to improving the compactness of the hinge mechanism 12. When the foldable electronic device is in a folded state, the hinge mechanism can better wrap and protect the flexible display screen, and improve the drop resistance of the foldable electronic device.

[0233] It should be noted that there may be many specific implementations of the connection portion 2136, including the second hinge portion 2132 in the aforementioned embodiment.

[0234] In some embodiments, one end of the first rotating member 212 includes a first plate 2123 and a first guide portion 2121, the base assembly 100 is provided with a first arc groove 110, the first guide portion 2121 is rotatably matched with the first arc groove 110, and the second support surface 210a is arranged on the outer side of the first plate 2123. In this way, by utilizing the rotatable match between the first guide portion 2121 and the first arc groove 110, a portion of the first rotating member 212 can be embedded in the base assembly 100 for movement, avoiding the formation of a connection convex point to press the flexible display screen 11, so that the flexible display screen 11 can be arranged flatly on the hinge mechanism 12. The second support surface 210a is arranged on the first plate 2123, which is easy to implement and convenient for connecting the third support surface 302 and the base assembly 100.

[0235] In some embodiments, the base assembly 100 includes a first support surface 121. When the hinge mechanism 12 is in an unfolded state, the second support surface 210a, the third support surface 302 and the first support surface 121 cooperate to form a support structure. When the hinge mechanism 12 is in a folded state, the second support surface 210a is arranged at an angle relative to the first support surface 121, forming a accommodating space 303 in a water drop shape, which can better wrap the flexible display screen, so as to improve the protection performance of the flexible display screen and improve the anti-fall performance of the foldable electronic device.

[0236] Combination Figure 4 , Fig.11 as well as Fig.13As shown, one end of the first rotating member is rotatably connected to the base assembly through the first arc-shaped guide portion, the other end of the first rotating member is connected to one end of the second rotating member, and the other end of the second rotating member is rotatably connected to the moving member, and the second support surface and the third support surface are set at an angle to guide the bending of the flexible display screen. The length of the third support surface is greater than the second support surface, so that the flexible display screen is bent and gradually folded. The trough of the bending of the flexible display screen cooperates with the first support surface. When the foldable electronic device in the folded state collides, the hinge mechanism will deform, but during the deformation process, the three support surfaces can still be used to limit the support of the flexible display screen, effectively protecting the flexible display screen.

[0237] In any of the above embodiments, if Fig.19 As shown, in some embodiments, the support assembly 300 further includes a limit rod 330, one end of which is rotatably connected to one of the moving member 310 and the support member 320, and the other end of which is movably connected to the other of the moving member 310 and the support member 320; when the hinge mechanism 12 is in the unfolded state, the limit rod 330 is engaged with the moving member 310 and the support member 320 to limit the support member 320 from continuing to rotate in the unfolding direction of the hinge mechanism 12. In this way, by engaging the limit rod 330 with the moving member 310 and the support member 320 to limit the support member 320 from continuing to rotate in the unfolding direction of the hinge mechanism 12, the support member 320 can be effectively prevented from tilting, thereby preventing the hinge mechanism 12 from being over-extended and causing damage to parts or separation and failure of related parts, or even damaging the flexible display screen 11.

[0238] like Fig.19 As shown, in some embodiments, the angle between the limiting rod 330 and the first supporting surface is greater than 30° to form a stop structure. In this way, by limiting the angle between the limiting rod 330 and the first supporting surface, it is convenient to form a force between the limiting rod 330 and the support member 320 and the moving member 310 to form a downward pulling force of the support member 320, thereby being able to pull down the support member 320 to limit the support member 320 from continuing to rotate in the unfolding direction of the hinge mechanism 12, which can effectively prevent the support member 320 from tilting.

[0239] Optionally, the angle between the limiting rod 330 and the first supporting surface is 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75°, etc.

[0240] It should be noted that there are many specific ways to implement the stopping cooperation between the limit rod 330 and the moving part 310 and the supporting part 320, including but not limited to the stopping cooperation between the limit rod 330 and the limiting protrusion, the stopping cooperation between the limit rod 330 and the limiting groove 315, etc.

[0241] like Fig.19As shown, in some embodiments, the support assembly 300 also includes a first limiting shaft 340, the other end of the limiting rod 330 is connected to the first limiting shaft 340, and the other of the moving member 310 and the supporting member 320 is provided with a limiting groove 315, and a portion of the first limiting shaft 340 is inserted into the limiting groove 315 and is movably matched with the limiting groove 315. When the hinge mechanism 12 is in the expanded state, the first limiting shaft 340 and the end of the limiting groove 315 are against each other, so that the limiting rod 330 is stopped and matched with the moving member 310 and the supporting member 320. In this way, when the hinge mechanism 12 is in the moving state, the first limiting shaft 340 is active in the limiting groove 315, and the movement between the moving member 310 and the supporting member 320 will not be affected. And when the hinge mechanism 12 moves to the expanded state, the first limiting shaft 340 and the end of the limiting groove 315 are against each other, so that the limiting rod 330 is stopped and matched with the moving member 310 and the supporting member 320. This prevents the hinge mechanism 12 from being over-expanded, which may cause damage to parts or separation and failure of related parts, or even damage to the flexible display screen 11 .

[0242] Alternatively, if Fig.19 As shown, in some embodiments, the limit groove 315 is arranged on the moving member 310, and the support member 320 is rotatably connected with one end of the limit rod 330. The moving member 310 is provided with two first mounting bodies 311 that are spaced to form a avoidance groove 317316 at the other end of the avoidance rod 330, and the limit groove 315 is arranged on at least one of the first mounting bodies 311 and communicated with the avoidance groove 317316. In this way, the limit groove 315 is arranged on the moving member 310, so as to make full use of the thickness space of the moving member 310, so that the support member 320 can be made as thin as possible. The setting of the avoidance groove 317316 will not interfere with the movement of the limit rod 330, and facilitate the assembly between the limit rod 330, the first limit shaft 340 and the moving member 310.

[0243] Specifically, during the installation of the limit rod 330 and the movable part 310, the other end of the limit rod 330 is set in the avoidance groove 317316, and the first limit shaft 340 is inserted into the limit groove 315, enters the avoidance groove 317316 and is connected to the other end of the limit rod 330, so that the assembly is completed, which is beneficial to improve the assembly efficiency of the hinge mechanism 12.

[0244] It should be noted that there may be a variety of connection methods between the first limiting shaft 340 and the limiting rod 330, including but not limited to welding, integral molding, bonding, pinning and other fixed connection methods, as well as shaft connection, hinge connection and the like.

[0245] like Fig.19 as well as Fig. 20As shown, in some embodiments, the other end of the limiting rod 330 is provided with a first mounting through hole 331, the first limiting shaft 340 is sleeved and matched with the first mounting through hole 331, and the diameter of the first end shaft 342 is greater than or equal to the diameter of the first mounting through hole 331. In this way, the first limiting shaft 340 and the first mounting through hole 331 are zero-matched or interference-fitted, thereby improving the stop fit accuracy of the limiting rod 330, the moving member 310, and the supporting member 320.

[0246] like Fig.19 as well as Fig. 20 As shown, in some embodiments, the first limiting shaft 340 includes a first shaft body 341 that is rotatably matched with the first mounting through hole 331, a first end shaft 342 fixed at one end of the first shaft body 341, and a second end shaft 343 fixed at the other end of the second shaft body 351, the diameter of the first shaft body 341 is greater than or equal to the diameter of the first mounting through hole 331, the diameter of the first end shaft 342 and the diameter of the second end shaft 343 are greater than the diameter of the first mounting through hole 331, and at least one of the first end shaft 342 and the second end shaft 343 is slidably matched with the limiting groove 315. In this way, the matching of the first end shaft 342 and the second end shaft 343 can prevent the matching tolerance of the limiting rod 330 and the first limiting shaft 340 from being too long, and control the process accuracy. In addition, by slidingly cooperating with the limiting groove 315 by at least one of the first end shaft 342 and the second end shaft 343, the limiting rod 330 can slide and rotate relative to the limiting groove 315, but when at least one of the first end shaft 342 and the second end shaft 343 abuts against the end of the limiting groove 315, the limiting rod 330 can be stopped and cooperated with the moving part 310 and the supporting part 320.

[0247] Optionally, in some embodiments, the first end shaft 342 and / or the second end shaft 343 is provided with a first introduction portion. And / or, the end of the first mounting through hole 331 is provided with a first introduction hole. In this way, the first end shaft 342 or the second end shaft 343 is conveniently inserted into the first mounting through hole 331 through the guiding effect of the first introduction portion and / or the first introduction hole, so as to realize the extrusion fit between the first mounting through hole 331 and the first shaft body 341.

[0248] There are many specific implementations of the first introduction portion, including but not limited to a rounded corner structure or an inverted tapered corner structure.

[0249] There are many specific implementations of the first introduction hole, including but not limited to a rounded hole structure or an inverted tapered hole structure.

[0250] In some embodiments, at least a portion of the limiting rod 330 is elastic so that the first mounting hole 331 can be elastically deformed. In this way, the first limiting shaft 340 is easily squeezed into the first mounting hole 331, the rotation damping of the limiting rod 330 is increased, and the hovering effect of the hinge mechanism 12 is improved.

[0251] Combined with the above-mentioned embodiment of the first mounting body 311, it is easy to assemble, and the first limiting shaft 340 and the limiting rod 330 are tightly matched to improve the stopping accuracy.

[0252] like Fig.19 As shown, in some embodiments, the support assembly 300 further includes a second limiting shaft 350, one end of the limiting rod 330 is connected to the second limiting shaft 350, and the support member 320 is provided with a matching hole 323, and a portion of the second limiting shaft 350 is inserted into the matching hole 323 and rotatably matched with the matching hole 323. In this way, by partially inserting the second limiting shaft 350 into the matching hole 323 and rotatably matching with the matching hole 323, it is convenient to realize the rotatable connection between one end of the limiting rod 330 and the support member 320.

[0253] It should be noted that there can be many ways to connect the first limit shaft 340 and the limit rod 330, including but not limited to welding, one-piece molding, bonding, pinning and other fixed connection methods, and also including shaft connection, hinge connection and the like.

[0254] Alternatively, if Fig. 20 As shown, in some embodiments, the other end of the limiting rod 330 is provided with a second mounting through hole 332, the second rotating shaft 215 is rotationally matched with the second mounting through hole 332, and the diameter of the second rotating shaft 215 is greater than or equal to the diameter of the second mounting through hole 332. In this way, the second rotating shaft 215 and the second mounting through hole 332 are zero-matched or interference-matched, thereby improving the stop-matching accuracy of the limiting rod 330, the moving member 310, and the supporting member 320.

[0255] like Fig.19 as well as Fig. 20 As shown, in some embodiments, the second limiting shaft 350 includes a second shaft body 351 that is rotatably matched with the second mounting through hole 332, a third end shaft 352 that is fixed to one end of the second shaft body 351, and a fourth end shaft 353 that is fixed to the other end of the second shaft body 351. The diameter of the second shaft body 351 is greater than or equal to the diameter of the second mounting through hole 332. The diameter of the third end shaft 352 and the diameter of the fourth end shaft 353 are greater than the diameter of the second mounting through hole 332. At least one of the third end shaft 352 and the fourth end shaft 353 is rotatably matched with the matching hole 323. In this way, the matching of the third end shaft 352 and the fourth end shaft 353 can avoid the matching tolerance of the limiting rod 330 and the second limiting shaft 350 being too long, control the process accuracy, improve the transmission accuracy of the hinge mechanism 12, and facilitate the realization of the stop structure.

[0256] In some embodiments, the third end shaft 352 and / or the fourth end shaft 353 are provided with a second introduction portion. And / or, the end of the second mounting through hole 332 is provided with a second introduction hole. In this way, the third end shaft 352 or the fourth end shaft 353 is conveniently inserted into the second mounting through hole 332 through the cooperation of the second introduction portion and / or the second introduction hole, so as to realize the extrusion cooperation between the second mounting through hole 332 and the second shaft body 351.

[0257] There are many specific implementations of the second introduction portion, including but not limited to a rounded corner structure or an inverted tapered corner structure.

[0258] There are many specific implementations of the second introduction hole, including but not limited to a rounded hole structure or an inverted tapered hole structure.

[0259] In some embodiments, the limiting rod 330 is elastic so that the second mounting hole 332 can be elastically deformed, so that the second limiting shaft 350 can be squeezed into the second mounting hole 332, the rotation damping of the limiting rod 330 is increased, and the hovering effect of the hinge mechanism 12 is improved.

[0260] In some embodiments, the second supporting portion 325 is provided with a first connecting portion 2136 , and the first connecting portion 2136 is rotatably connected to the limiting rod 330 .

[0261] In some embodiments, at least a portion of the first connection portion 2136 is convex, so as to improve the strength of the support member 320 .

[0262] In some embodiments, the first support portion 324 includes at least one guide portion 322 for guiding the flexible transmission member 14. In this way, the movement of the flexible transmission member 14 is more regular.

[0263] In some embodiments, the guide portion 322 is in the shape of a convex rib and extends along the length direction of the first support portion 324. In this way, the strength of the support member 320 can be improved.

[0264] like Fig.21 As shown, the support member 320 includes a first support portion 324 and a second support portion 325. The material stiffness of the second support portion 325 is greater than the material stiffness of the first support portion 324, and the second support portion 325 is arranged side by side at at least one end of the first support portion 324 along the first direction, and the orthographic projections of the second support portion 325 and the first support portion 324 along the second direction partially overlap.

[0265] Since the material stiffness of the second support portion 325 of the above-mentioned support member 320 is greater than the material stiffness of the first support portion 324, the orthographic projections of the second support portion 325 and the first support portion 324 along the second direction overlap. On the one hand, the overlapping portion itself can realize the overlapping relationship between the second support portion 325 and the first support portion 324. On the other hand, the overlapping portion can be used to set a connection structure with other parts of the hinge mechanism 12, so that the second support portion 325 will not collapse or other deformations relative to the first support portion 324 when subjected to force during assembly or use. In addition, the use of the first support portion 324 and the second support portion 325 made of materials with different stiffness can also help reduce the overall weight of the support member 320 and improve the structural reliability and lightness of the support member 320.

[0266] In the above embodiment, the second support portion 325 may include at least a first portion (not shown) and a second portion (not shown). The first portion and the first support portion 324 are arranged side by side along the first direction, and the second portion is connected to the first portion and the first support portion 324 respectively, and the orthographic projection of the second portion along the second direction overlaps with the first portion and the first support portion 324 respectively. The connection with the first portion and the first support portion 324 is achieved by the overlapping portion of the second portion with the first portion and the first support portion 324 in the second direction, thereby improving the connection strength of the first portion and the second portion itself and the second support portion 325 and the first support portion 324, thereby avoiding deformation problems such as collapse of the second support portion 325 under stress.

[0267] Similarly, the first support portion 324 may include a third portion (not shown) and a fourth portion (not shown), the third portion and the second support portion 325 are arranged side by side along the first direction, the fourth portion is connected to the third portion and the second support portion 325 respectively, and the orthographic projection of the fourth portion along the second direction overlaps with the third portion and the second support portion 325 respectively. The fourth portion is connected to the third portion and the second support portion 325 by the overlapping portion of the fourth portion with the third portion and the second support portion 325 in the second direction, thereby improving the connection strength of the third portion and the fourth portion themselves as well as the first support portion 324 and the second support portion 325, and avoiding deformation problems such as collapse of the second support portion 325 when subjected to force.

[0268] In the above embodiment, the first support portion 324 and the second support portion 325 are connected by at least one of the following methods: injection molding connection, bolt connection, clamping and riveting. Taking the first support portion 324 and the second support portion 325 being connected by injection molding as an example:

[0269] In some embodiments, the second support portion 325 includes a first end, and the first support portion 324 is injection molded at the first end. The first support portion 324 is injection molded at the first end of the second support portion 325 to improve the connection reliability between the first support portion 324 and the second support portion 325 and improve the overall structural rigidity of the support member 320.

[0270] The first support portion 324 injection molded at the first end can be made of various types of plastic materials, which is not limited in the present disclosure. The first support portion 324 made of plastic material is combined with the second support portion 325 with a stiffness greater than that of the plastic material, so that the overall weight of the support member 320 is composed of the plastic first support portion 324 and the second support portion 325 with a greater stiffness located at the end of the first support portion 324. The plastic material is relatively light, which helps to improve the overall lightness and thinness of the support member 320.

[0271] Furthermore, the first end may be provided with a gripping structure, and the first support portion 324 covers the gripping structure, which can improve the connection reliability between the first support portion 324 and the second support portion 325. The gripping structure may be a groove-shaped or hook-shaped structure, and the present disclosure does not limit the specific structure of the gripping structure.

[0272] In some embodiments, the support member 320 may include second support portions 325 symmetrically arranged at both ends of the first support portion 324, so that the corresponding function can be achieved through the second support portions 325 located at both ends of the first support portion 324, and the structural stability of the first support portion 324 located between the two second support portions 325 is also improved.

[0273] In some embodiments, the support member 320 is a floating plate.

[0274] Optionally, combined Fig.19 As shown, in some embodiments, one end of the limit rod 330 is rotatably connected to one of the moving member 310 and the second support portion 325, and the other end of the limit rod 330 is movably connected to the other of the moving member 310 and the second support portion 325. When the hinge mechanism 12 is in the unfolded state, the limit rod 330 is engaged with the moving member 310 and the second support portion 325 to limit the second support portion 325 from continuing to rotate in the unfolding direction of the hinge mechanism 12. That is,

[0275] In combination with any of the above embodiments, in some embodiments, the hinge mechanism 12 can hover at any angle within the range of 45° to 135°. In this way, the hinge mechanism 12 can hover within the range of 45° to 135°, which is defined as a hovering state. The hinge mechanism 12 can turn and stop immediately in the hovering state, which is convenient for users to use the foldable electronic device 10 at multiple angles, thereby improving the user experience of the foldable electronic device 10.

[0276] In some embodiments, the hovering rotation range of the third rotating member 221 is A, A ≥ 50°. In this way, the rotation range can be flexibly set according to actual needs. For example, A = 50°, 60°, 90°, 100°, 110°, 120°, 130°, 150°, etc.

[0277] In some embodiments, the third rotating member 221 can be capable of hovering rotation, so that the hinge mechanism 12 can hover at any angle within the range of 45° to 135°.

[0278] It should be noted that the motion state of the hinge mechanism 12 includes a hovering state. In some embodiments, the support protrusion can at least lift up the support member 320 when the hinge mechanism 12 is in the hovering state.

[0279] In some embodiments, the base assembly 100 and the connecting rod component 200 correspond to each other as a third group, and at least two third groups are arranged in the housing assembly 13 at intervals along the length direction of the foldable electronic device 10. In this way, by using at least two third groups arranged in the housing assembly 13 at intervals along the length direction of the foldable electronic device 10, the folding reliability of the foldable electronic device 10 can be improved.

[0280] In some embodiments, the housing assembly 13 includes a fixed housing, the length direction of the fixed housing is arranged along the length direction of the foldable electronic device 10, at least two third groups are arranged in the housing assembly 13 at intervals along the length direction of the fixed housing, and the base assembly 100 is fixed to the fixed housing. In this way, the fixed housing can be used to protect the hinge mechanism 12 and install the third group.

[0281] In some embodiments, the connecting rod component 200 further includes a third rotating member 221, which is rotatably connected to the base assembly 100 and the first rotating member 212; the base assembly 100 includes a first supporting surface 121, and the supporting assembly 300 includes a moving member 310 and a supporting member 320, the moving member 310 is rotatably connected to the supporting member 320, the moving member 310 is rotatably connected to the second rotating member 213, and is slidably connected to the third rotating member 221; the foldable electronic device 10 includes a first connecting plate (not shown), at least two moving members 310 correspond to the third group one by one, and are spaced apart in the housing assembly 13 along the length direction of the foldable electronic device 10, and two adjacent moving members 310 are connected by the first connecting plate. In this way, two adjacent moving members 310 are connected by the first connecting plate, which makes it easy to realize the splicing of multiple groups of moving members 310.

[0282] In some embodiments, the length direction of the support member 320 can be arranged in the length direction of the foldable electronic device 10, and at least two moving members 310 are respectively connected to the support member 320. In this way, it is helpful to reduce the assembly process of the support member 320, and the support consistency of the flexible display screen 11 is better. In addition, the support member 320 can be used as a first connecting plate, which can realize the splicing of multiple groups of moving members 310.

[0283] Alternatively, the foldable electronic device 10 further includes a second connecting plate (not shown), at least two supporting members 320 correspond to at least two movable members 310 one by one, and are arranged at intervals on the housing assembly 13 along the length direction of the foldable electronic device 10, and two adjacent supporting members 320 are connected by the second connecting plate. In this way, two adjacent supporting members 320 are connected by the second connecting plate, which makes it easy to realize the splicing of multiple groups of supporting members 320, and the design of the supporting members 320 is more flexible.

[0284] like Fig. 22 As shown, in some embodiments, the foldable electronic device 10 further includes a third connecting plate 360, which is arranged at intervals along the length direction of the foldable electronic device 10, and two adjacent base frame assemblies 100 are connected by the third connecting plate 360. In this way, the two adjacent base frame assemblies 100 are connected by the third connecting plate 360, which facilitates modular assembly of the base frame assemblies 100 and realizes the integration of multiple third groups.

[0285] In the description of the present disclosure, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0286] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0287] In the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0288] In the present disclosure, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0289] It should be noted that when an element is referred to as being "fixed to", "disposed on", "fixedly arranged on" or "installed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. Furthermore, when an element is considered to be "fixedly connected to" another element, the two may be fixed in a detachable connection manner or in a non-detachable connection manner, such as socketing, snap-fitting, integral molding, welding, etc., which can be achieved in traditional technologies and will not be repeated here.

[0290] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0291] The above embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the inventive concept of the present disclosure, and these all belong to the protection scope of the present disclosure.

Claims

1. A foldable electronic device, characterized in that: include: The hinge mechanism comprises a base assembly, a support assembly and a connecting rod component; the connecting rod component and the supporting assembly are respectively at least two groups, and are respectively arranged on both sides of the base assembly in a one-to-one correspondence; the connecting rod component comprises a first rotating member and a second rotating member; one end of the first rotating member is rotatably connected to the base assembly, the other end of the first rotating member is rotatably connected to one end of the second rotating member, and the other end of the second rotating member is rotatably connected to the supporting assembly; A shell assembly, comprising at least two shell bodies, two adjacent shell bodies are respectively arranged on both sides of the base assembly, and one of the shell bodies is fixedly connected to one of the support assemblies, and the other shell body is fixedly connected to the other support assembly; A flexible display screen, wherein at least a portion of the flexible display screen covers the housing assembly and the hinge mechanism; as well as; A flexible transmission member, wherein the flexible transmission member passes through the hinge mechanism so that two ends of the flexible transmission member are respectively disposed on two sides of the base frame assembly; When the hinge mechanism is in an unfolded state, at least two groups of the support components and at least two groups of the connecting rod components cooperate with the base frame component to form a support structure for supporting the flexible display screen; When the hinge mechanism is in a folded state, the other end of the first rotating member and one end of the second rotating member are spaced apart from the base assembly along the thickness direction of the base assembly, so that at least two groups of the supporting assemblies and at least two groups of the connecting rod parts form a receiving space with the base assembly, and the flexible display screen is bent in the receiving space.

2. The foldable electronic device according to claim 1, characterized in that: At least two groups of the support components are symmetrically arranged on both sides of the base component; and / or at least two groups of the connecting rod components are symmetrically arranged on both sides of the base component; And / or, on the cross-sectional surface in the thickness direction of the base assembly, when the hinge mechanism is in a folded state, the width of the accommodating space gradually increases from the base assembly to the other end of the first rotating member, and the width of the accommodating space gradually decreases from one end of the second rotating member to the other end of the second rotating member.

3. The foldable electronic device according to claim 1, characterized in that: A first hinged portion is disposed at the other end of the first rotating member, and a second hinged portion is disposed at one end of the second rotating member. The second hinged portion is hingedly connected to the first hinged portion.

4. The foldable electronic device according to claim 3, characterized in that: The first rotating member further includes a first rotating shaft, and the first hinged portion is hingedly connected to the second hinged portion via the first rotating shaft; And / or, at least a portion of the second hinged portion is embedded in the first hinged portion.

5. The foldable electronic device according to claim 4, characterized in that: On a cross-sectional surface in the thickness direction of the base assembly, the width of the accommodation space gradually increases from the base assembly to the first rotating shaft, and the width of the accommodation space gradually decreases from the first rotating shaft to the other end of the second rotating member; And / or, the first hinged portion includes at least two first rotating bodies arranged at intervals, a first gap is formed between two adjacent first rotating bodies, and the first rotating body is provided with a second through hole; the second hinged portion includes at least two second rotating bodies arranged at intervals, a second gap is formed between two adjacent second rotating bodies, and the second rotating body is provided with a third through hole, one of the second rotating bodies is inserted into the first gap, and one of the first rotating bodies is inserted into the second gap, so that the second through hole is coaxially arranged with the third through hole, and the first rotating shaft is passed through the second through hole and the third through hole.

6. The foldable electronic device according to claim 5, characterized in that: The connecting rod component also includes a third rotating member, which is rotatably connected to the base frame assembly and slidably connected to the support assembly; the connecting rod component includes a transmission member, one end of which is rotatably connected to the third rotating member, and the other end of the transmission member is rotatably connected to the first hinge part and the second hinge part through the first rotating shaft.

7. The foldable electronic device according to claim 6, characterized in that: The other end of the transmission member includes two first rotating parts arranged at intervals, the first rotating parts are provided with a first through hole, the first rotating body and the second rotating body are arranged between the two first rotating parts, and the first through hole, the second through hole and the third through hole are coaxially arranged, and the first rotating shaft is passed through the first through hole, the second through hole and the third through hole.

8. The foldable electronic device according to claim 1, characterized in that: The base frame assembly includes a first support surface; When the hinge mechanism is in an unfolded state, the support assembly cooperates with the first support surface to form a support structure; When the hinge mechanism is in a folded state, the support assembly and the connecting rod component are arranged at an angle relative to the first support surface to form the accommodation space; The other end of the first rotating member and one end of the second rotating member are spaced apart from the first supporting surface along the thickness direction of the base frame assembly, so that the supporting assembly is spaced apart from the first supporting surface.

9. The foldable electronic device according to claim 1, characterized in that: The connecting rod component further includes a third rotating member, the third rotating member is rotatably connected to the base assembly and the first rotating member; the base assembly includes a first supporting surface, the supporting assembly includes a moving member and a supporting member, the moving member is rotatably connected to the supporting member, the moving member is rotatably connected to the second rotating member, and is slidably connected to the third rotating member; When the hinge mechanism is in an unfolded state, the support member cooperates with the first support surface to form a support structure; when the hinge mechanism is in a folded state, the support member is arranged at an angle relative to the first support surface to form the accommodating space.

10. The foldable electronic device according to claim 9, characterized in that: The first rotating member includes at least a second supporting surface, and the supporting member includes a third supporting surface; when the hinge mechanism is in the unfolded state, the second supporting surface is located in the same plane as the first supporting surface and the third supporting surface.

11. The foldable electronic device according to claim 10, characterized in that: The first rotating member comprises a stop surface, and when the hinge mechanism is in a folded state, the stop surface abuts against the supporting member.

12. The foldable electronic device according to claim 9, characterized in that: The first rotating member and the rotation axis of the base assembly, the third rotating member and the rotation axis of the base assembly are parallel and not coaxial; And / or, the connecting rod component includes a second rotating shaft, the other end of the second rotating member includes a third hinge part, the third hinge part includes at least two third rotating bodies arranged at intervals, a third notch is formed between two adjacent third rotating bodies, and the third rotating body is provided with a fourth through hole; the movable member includes at least two mounting bodies arranged at intervals, a fourth notch is formed between two adjacent mounting bodies, the mounting bodies are provided with a rotating groove, one of the mounting bodies is inserted into the third notch, one of the third rotating bodies is inserted into the fourth notch, the fourth through hole is coaxially arranged with the rotating groove, and the second rotating shaft passes through the fourth through hole and the rotating groove.

13. The foldable electronic device according to claim 9, characterized in that: The connecting rod component comprises: A transmission member, one end of which is rotatably connected to the third rotating member, and the other end of which is rotatably connected to the first rotating member and the second rotating member.

14. The foldable electronic device according to claim 13, characterized in that: The rotation axes of the transmission member and the third rotating member, the rotation axes of the rotating member and the moving member, and the rotation axes of the third rotating member and the base assembly are located in the same plane.

15. The foldable electronic device according to claim 13, characterized in that: The other end of the transmission member includes two first rotating parts arranged at an interval, a part of the first rotating member is arranged between the two first rotating parts and is rotatably connected to the two first rotating parts; and / or, one end of the transmission member is provided with a second rotating part, and the second rotating part is hinged to the third rotating member.

16. The foldable electronic device according to claim 15, characterized in that: The connecting rod component comprises: The first rotating shaft, the first rotating part is provided with a first through hole, the first rotating member is provided with a second through hole coaxially arranged with the first through hole, and the first rotating shaft is penetrated through the first through hole and the second through hole.

17. The foldable electronic device according to claim 16, characterized in that: The third rotating member is rotatably connected to the base frame assembly and the transmission member respectively, and the third rotating member is slidably connected to the moving member.

18. The foldable electronic device according to claim 17, characterized in that: The third rotating member comprises: a third rotating part, the third rotating part being rotatably connected to the base frame assembly; The second guide portion, the movable member is provided with a sliding groove which is slidably matched with the second guide portion.

19. The foldable electronic device according to claim 18, characterized in that: The third rotating member further includes a fourth rotating portion, the fourth rotating portion is located between the second guide portion and the third rotating portion, and the fourth rotating portion is rotationally connected to the transmission member.

20. The foldable electronic device according to claim 18, characterized in that: The connecting rod component includes a third rotating shaft installed on the base frame assembly, and the third rotating part includes a first rotating hole rotatably matched with the third rotating shaft; the fourth rotating part includes a fourth rotating shaft, and the fourth rotating shaft is rotatably connected to the transmission member.

21. The foldable electronic device according to claim 19, characterized in that: The second guide portion includes: a guide body extending from the fourth rotating portion to a side away from the third rotating portion, and the guide body is slidably matched with the sliding groove.

22. The foldable electronic device according to claim 18, characterized in that: The third rotating member includes a receiving recess, which is arranged between the second guide portion and the third rotating portion; when the hinge mechanism is in a folded state, the receiving recess, the third supporting surface and the first supporting surface enclose a receiving space.

23. The foldable electronic device according to claim 9, characterized in that: There is a first rotation axis between the first rotating member and the base assembly, a second rotation axis between the first rotating member and the second rotating member, and a third rotation axis between the second rotating member and the movable member. The first rotation axis, the second rotation axis and the third rotation axis are parallel to each other, and the second rotation axis is located between the first rotation axis and the third rotation axis.

24. The foldable electronic device according to claim 9, characterized in that: The moving member is provided with a first arc-shaped guide portion, and the supporting member is provided with a second arc-shaped guide portion. The first arc-shaped guide portion is guidingly connected with the second arc-shaped guide portion so that the moving member is rotatably connected with the supporting member.

25. The foldable electronic device according to claim 24, characterized in that: One of the first arc-shaped guide portion and the second arc-shaped guide portion is provided with a second arc-shaped groove, and the other is provided with a second arc-shaped body, and the second arc-shaped body is guided and matched with the second arc-shaped groove.

26. The foldable electronic device according to claim 25, characterized in that: The movable member is provided with an avoidance surface, and on a cross-sectional surface in the thickness direction of the base frame assembly, the avoidance surface is arranged closer to the side wall of the base frame assembly and further away from the first supporting surface; When the hinge mechanism is in the unfolded state, part of the support member is arranged away from the avoidance surface; when the hinge mechanism is in the folded state, the support member is arranged in contact with or close to the avoidance surface.

27. The foldable electronic device according to claim 9, characterized in that: The hovering rotation range of the third rotating member is A, and A≥50°.

28. The foldable electronic device according to claim 9, characterized in that: The third rotating member can be suspended and rotated, so that the hinge mechanism can be suspended at any angle within the range of 45° to 135°.

29. The foldable electronic device according to claim 9, characterized in that: The hinge mechanism further comprises a damping component, and the damping component cooperates with the third rotating member to rotate with damping, so that the third rotating member can suspend and rotate.

30. The foldable electronic device according to claim 29, characterized in that: The third rotating member includes a third rotating shaft and a matching portion, the damping assembly includes an elastic member, a first damping member and a mounting member fixedly connected to the base assembly, one end of the third rotating shaft is fixed to the mounting member, and the other end is fixed to the base assembly, the elastic member and the first damping member are sleeved on the third rotating shaft, and the elastic member is arranged between the mounting member and the first damping member; one of the first damping member and the matching portion is provided with a pressing protrusion, and the other is provided with a pressure-bearing surface that abuts against the pressing protrusion and a second groove for accommodating the pressing protrusion; When the third rotating member rotates, the pressing protrusion presses against the pressure-bearing surface, so that the third rotating member rotates with damping; When the hinge mechanism is in the folded state, the pressing protrusion is arranged in the second groove, so that the third rotating member is fixed relative to the base frame assembly and drives the support member to rotate toward the unfolded state; or, when the hinge mechanism is in the unfolded state, the pressing protrusion is arranged in the second groove, so that the third rotating member is fixed relative to the base frame assembly and drives the support member to rotate toward the folded state.

31. The foldable electronic device according to claim 30, characterized in that: The material parameters of at least some parts of the damping assembly meet at least one of the following: 550HV≥ surface hardness≥450HV, yield strength≥1600MPa, and tensile strength≥1700MPa.

32. The foldable electronic device according to claim 31, characterized in that: The material parameters of the first damping element satisfy at least one of the following: 550HV≥ surface hardness≥450HV, yield strength≥1600MPa, and tensile strength≥1700MPa.

33. The foldable electronic device according to claim 32, characterized in that: One supporting assembly and one connecting rod component are arranged on one side of the base assembly as a first group, and one supporting assembly and one connecting rod component are arranged on the other side of the base assembly as a second group; the hinge mechanism also includes a synchronization assembly, and the third rotating member of the first group moves synchronously with the third rotating member of the second group through the synchronization assembly.

34. The foldable electronic device according to claim 33, characterized in that: The synchronous assembly includes at least one synchronous gear, and the third rotating member includes a gear body meshing with the at least one synchronous gear.

35. The foldable electronic device according to claim 9, characterized in that: The support member comprises: a first support portion; The second supporting part has a material stiffness greater than that of the first supporting part, the second supporting part is arranged side by side at at least one end of the first supporting part along the first direction, and the orthographic projections of the second supporting part and the first supporting part along the second direction partially overlap.

36. The foldable electronic device according to claim 35, characterized in that: The second supporting portion at least comprises: a first portion, the first portion and the first supporting portion being arranged side by side along a first direction; The second part is connected to the first part and the first supporting portion respectively, and the orthographic projection of the second part along the second direction overlaps with the first part and the first supporting portion respectively.

37. The foldable electronic device according to claim 35, characterized in that: The first supporting portion comprises: a third portion, the third portion and the second supporting portion being arranged side by side along a first direction; The fourth part is connected to the third part and the second supporting part respectively, and the orthographic projection of the fourth part along the second direction overlaps with the third part and the second supporting part respectively.

38. The foldable electronic device according to claim 35, characterized in that: The first supporting portion and the second supporting portion are connected by at least one of the following methods: injection molding, bolting, clamping and riveting.

39. The foldable electronic device according to claim 35, characterized in that: The support assembly further includes a limiting rod, one end of which is rotatably connected to one of the moving member and the second supporting portion, and the other end of which is movably connected to the other of the moving member and the second supporting portion; When the hinge mechanism is in the unfolded state, the limiting rod is engaged with the moving member and the second supporting portion to limit the second supporting portion from continuing to rotate in the unfolding direction of the hinge mechanism.

40. The foldable electronic device according to claim 39, characterized in that: The angle between the limiting rod and the first supporting surface is greater than 30°.

41. The foldable electronic device according to claim 40, characterized in that: The support assembly further includes a first limiting shaft, the other end of the limiting rod is connected to the first limiting shaft, the other of the moving member and the second supporting part is provided with a limiting groove, a portion of the first limiting shaft is inserted into the limiting groove and movably cooperates with the limiting groove; When the hinge mechanism is in the unfolded state, the first limiting shaft abuts against the end of the limiting groove, so that the limiting rod is engaged with the moving member and the second supporting portion.

42. The foldable electronic device according to claim 41, characterized in that: The limiting groove is arranged on the movable part, and the second supporting part is rotatably connected to one end of the limiting rod; the movable part is provided with two first mounting bodies which are spaced apart to form an avoidance groove for avoiding the other end of the limiting rod, and the limiting groove is arranged on at least one of the first mounting bodies and is connected to the avoidance groove.

43. The foldable electronic device according to claim 41, characterized in that: The other end of the limiting rod is provided with a first mounting through hole, the first limiting shaft is sleeve-fitted with the first mounting through hole, and the diameter of the first limiting shaft is greater than or equal to the diameter of the first mounting through hole.

44. The foldable electronic device according to claim 43, characterized in that: The first limiting shaft includes a first shaft body rotatably matched with the first mounting through hole, a first end shaft fixed at one end of the first shaft body, and a second end shaft fixed at the other end of the second shaft body. The diameter of the first shaft body is greater than or equal to the diameter of the first mounting through hole, the diameter of the first end shaft and the diameter of the second end shaft are greater than the diameter of the first mounting through hole, and at least one of the first end shaft and the second end shaft is slidably matched with the limiting groove.

45. The foldable electronic device according to claim 44, characterized in that: The first end shaft and / or the second end shaft is provided with a first introduction portion; and / or the end of the first mounting through hole is provided with a first introduction hole.

46. ​​The foldable electronic device according to claim 43, characterized in that: At least a portion of the limiting rod is elastic, so that the first mounting through hole can be elastically deformed.

47. The foldable electronic device according to claim 41, characterized in that: The support assembly also includes a second limiting shaft, one end of the limiting rod is connected to the second limiting shaft, the second support portion is provided with a matching hole, a portion of the second limiting shaft is inserted into the matching hole and rotatably matched with the matching hole.

48. The foldable electronic device according to claim 47, characterized in that: A second mounting through hole is provided at one end of the limiting rod, the second limiting shaft is rotatably matched with the second mounting through hole, and the diameter of the first limiting shaft is greater than or equal to the diameter of the second mounting through hole.

49. The foldable electronic device according to claim 48, characterized in that: The second limiting shaft includes a second shaft body rotatably matched with the second mounting through hole, a third end shaft fixed at one end of the second shaft body, and a fourth end shaft fixed at the other end of the second shaft body. The diameter of the second shaft body is greater than or equal to the diameter of the second mounting through hole, the diameter of the third end shaft and the diameter of the fourth end shaft are greater than the diameter of the second mounting through hole, and at least one of the third end shaft and the fourth end shaft is rotatably matched with the matching hole.

50. The foldable electronic device according to claim 49, characterized in that: The third end shaft and / or the fourth end shaft is provided with a second introduction portion; and / or the end of the second mounting through hole is provided with a second introduction hole.

51. The foldable electronic device according to claim 48, characterized in that: At least a portion of the limiting rod is elastic so that the second mounting through hole can be elastically deformed.

52. The foldable electronic device according to claim 41, characterized in that: The second supporting portion is provided with a first connecting portion, and the first connecting portion is rotatably connected to the limiting rod.

53. The foldable electronic device according to claim 52, characterized in that: At least a portion of the first connecting portion is in a convex shape.

54. The foldable electronic device according to claim 35, characterized in that: The first supporting portion includes at least one guiding portion for guiding the flexible transmission member.

55. The foldable electronic device according to claim 54, characterized in that: The guide portion is in a convex rib shape and extends along the length direction of the first support portion.

56. The foldable electronic device according to claim 1, characterized in that: The base frame assembly includes a support plate and a cover plate, at least one of the support plate and the cover plate is provided with a first groove, the cover plate is fixedly connected to the support plate so that the first groove cooperates to form a first arc groove, and the first rotating member includes a first guide portion that rotates with the first arc groove.

57. The foldable electronic device according to claim 1, characterized in that: At least one of the following components is made of steel with a tensile strength in the range of 1400MPa to 1900MPa: Base frame assembly; Support components; Connecting rod parts.

58. The foldable electronic device according to claim 1, characterized in that: The base frame components and the connecting rod components correspond to each other to form a third group, and at least two groups of the third groups are arranged on the shell component at intervals along the length direction of the foldable electronic device.

59. The foldable electronic device according to claim 58, characterized in that: The shell assembly includes a fixed shell, the length direction of the fixed shell is arranged along the length direction of the foldable electronic device, at least two groups of the first group are arranged in the shell assembly at intervals along the length direction of the fixed shell, and the base frame assembly is fixed to the fixed shell.

60. The foldable electronic device according to claim 58, characterized in that: The connecting rod component also includes a third rotating member, which is rotatably connected to the base assembly and the first rotating member; the base assembly includes a first supporting surface, and the supporting assembly includes a moving member and a supporting member, the moving member is rotatably connected to the supporting member, the moving member is rotatably connected to the second rotating member, and is slidably connected to the third rotating member; the foldable electronic device includes a first connecting plate, at least two of the moving members correspond one-to-one to the third group, and are spaced apart in the shell assembly along the length direction of the foldable electronic device, and two adjacent moving members are connected by the first connecting plate.

61. The foldable electronic device according to claim 60, characterized in that: The length direction of the support member is arranged in the length direction of the foldable electronic device, and at least two of the moving members are respectively connected to the support member; Alternatively, the foldable electronic device also includes a second connecting plate, at least two of the supporting members correspond one-to-one to at least two movable members, and are arranged at intervals in the shell assembly along the length direction of the foldable electronic device, and two adjacent supporting members are connected by the second connecting plate.

62. The foldable electronic device according to any one of claims 58 to 61, characterized in that: The foldable electronic device further comprises a third connecting plate, which is arranged at intervals along the length direction of the foldable electronic device, and two adjacent base frame assemblies are connected via the third connecting plate.

Images