Foldable electronic devices

Abstract

This invention discloses a foldable electronic device, including a hinge mechanism, a housing assembly, a flexible display screen, and a flexible transmission component. The hinge mechanism includes a base frame assembly, support components, and connecting rods. At least a portion of the flexible display screen covers the housing assembly and the hinge mechanism. The flexible transmission component passes through the hinge mechanism, with its two ends respectively positioned on opposite sides of the base frame assembly. When the hinge mechanism is in the unfolded state, at least two sets of support components and at least two sets of connecting rods cooperate with the base frame assembly to form a support structure supporting the flexible display screen. When the hinge mechanism is in the folded state, the other end of a first rotating component and one end of a second rotating component are spaced apart from the base frame assembly along its thickness direction, so that at least two sets of support components and at least two sets of connecting rods form a receiving space with the base frame assembly, within which the flexible display screen bends. This foldable electronic device has the advantage of being lightweight and thin.

Description

Technical Field

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

[0002] Mobile phones, tablets, and other electronic devices have become indispensable technological products in people's lives, studies, and entertainment. Currently, foldable electronic devices using flexible displays require mechanical hinge mechanisms to fold the flexible displays, ensuring they don't malfunction during normal use and allowing for proper bending. The flexible displays in foldable electronic devices are convenient to carry when folded, and offer a larger display area when unfolded, making them increasingly popular with consumers.

[0003] In technologies related to foldable electronic devices, hinge mechanisms are typically used to enable flexible displays to unfold or fold. However, traditional hinge mechanisms are relatively bulky, which is not conducive to achieving the thinness and lightness of foldable electronic devices. Summary of the Invention

[0004] This disclosure provides a foldable electronic device. This foldable electronic device achieves a smaller overall thickness when folded, facilitating the thinning and lightening of the foldable electronic device.

[0005] The technical solution is as follows:

[0006] According to a first aspect of the present disclosure, a foldable electronic device is provided, including a hinge mechanism, a housing assembly, a flexible display screen, and a flexible transmission member. The hinge mechanism includes a base frame assembly, a support assembly, and a connecting rod component. At least two sets of connecting rod components and support assemblies are respectively disposed on both sides of the base frame assembly; each connecting rod component includes 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 housing assembly includes at least two shell bodies, each disposed on both sides of the base frame assembly, with one shell body fixedly connected to one support assembly and the other shell body fixedly connected to the other support assembly. At least a portion of the flexible display screen covers the housing assembly and the hinge mechanism; the flexible transmission member passes through the hinge mechanism such that both ends of the flexible transmission member are respectively disposed on both sides of the base frame assembly.

[0007] When the hinge mechanism is in the extended state, at least two sets of support components and at least two sets 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 the folded state, the other end of the first rotating member and one end of the second rotating member are spaced apart from the base frame assembly along the thickness direction of the base frame assembly, so that at least two sets of support components and at least two sets of connecting rod components form a receiving space with the base frame assembly, and the flexible display screen bends within the receiving space.

[0009] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0010] The foldable electronic device uses a flexible transmission component that passes through a hinge mechanism. The two ends of the flexible transmission component are positioned on opposite sides of the base frame assembly, facilitating electrical connections between electronic devices on both sides of the base frame assembly. The flexible transmission component's flexible design does not affect the movement of the hinge mechanism and is easy to arrange. When the foldable electronic device switches from a folded state to an unfolded state, the connecting rods on both sides of the base frame assembly drive the support components to rotate around the base frame assembly. At least two sets of support components and at least two sets of connecting rods cooperate with the base frame assembly to form a support structure to support the flexible display screen, thereby improving display quality. When the hinge mechanism is in the folded state, the other end of the first rotating component and one end of the second rotating component are spaced apart from the base frame assembly along its thickness direction, allowing the support components to be positioned away from the base frame assembly, thus freeing up space for the flexible display screen. In other words, when a flexible display requires a large bending space, the support component is positioned away from the base frame component, so that the trough or peak of the flexible display and the support component are staggered as much as possible in the thickness direction of the folded electronic device after bending. This reduces or avoids partial overlap between the trough or peak of the flexible display and the support component, resulting in a smaller overall thickness of the folded electronic device after bending, which facilitates the realization of a thinner and lighter foldable electronic device.

[0011] The technical solution of this disclosure will be further explained below:

[0012] In one embodiment, at least two sets of support components are symmetrically arranged on both sides of the base frame component. Thus, the movement trajectories of the at least two sets of support components along both sides of the base frame component are identical, ensuring that the flexible display screen is reliably supported by the support components.

[0013] And / or, at least two sets of linkage components are symmetrically arranged on both sides of the base frame assembly. In this way, the movement trajectories of at least two sets of linkage components along both sides of the base frame assembly are the same, enabling the support assembly to drive the flexible display screen to fold inward or unfold outward symmetrically.

[0014] And / or, on a cross-section along the thickness direction of the base frame assembly, when the hinge mechanism is in the folded state, the width of the accommodating space gradually increases from the base frame 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. In this way, the accommodating space gradually increases to reduce stress concentration. The gradual decrease in the width of the accommodating space from one end of the second rotating member to the other end allows the flexible display screen to gradually conform away from the base frame assembly. This facilitates the thinning and lightening of foldable electronic devices and allows the flexible display screen to bend smoothly, improving its bending lifespan.

[0015] In one embodiment, the other end of the first rotating member is provided with a first hinge portion, and one end of the second rotating member is provided with a second hinge portion, the second hinge portion being hinged to the first hinge portion.

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

[0017] And / or, at least part of the second hinge is embedded in the first hinge, making the hinge mechanism more compact.

[0018] In one embodiment, on a cross-section along the thickness direction of the base frame assembly, the width of the accommodating space gradually increases from the base frame assembly to the first pivot, and gradually decreases from the first pivot to the other end of the second rotating member. This gradual increase in the width of the accommodating space from the base frame assembly to the first pivot fully avoids obstructing the flexible display screen, allowing it to bend smoothly and reducing stress concentration. The gradual decrease in the width of the accommodating space from the first pivot to the other end of the second rotating member causes the flexible display screen to gradually conform away from the base frame assembly. This facilitates the thinning and lightening of foldable electronic devices while also enabling smooth bending of the flexible display screen and improving its bending lifespan.

[0019] And / or, the first hinge portion includes at least two first rotating bodies spaced apart, with a first notch formed between adjacent two first rotating bodies, and the first rotating body having a second through hole; the second hinge portion includes at least two second rotating bodies spaced apart, with a second notch formed between adjacent two second rotating bodies, and the second rotating body having a third through hole, wherein one of the second rotating bodies is inserted into the first notch, and one of the first rotating bodies is inserted into the second notch, such that the second through hole and the third through hole are coaxially arranged, and the first rotating shaft passes through the second through hole and the third through hole.

[0020] In one embodiment, the linkage component further includes a third rotating member, which is rotatably connected to the base frame assembly and slidably connected to the support assembly; the linkage component includes 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 hinge portion and the second hinge portion via a first rotating shaft.

[0021] In one embodiment, the other end of the transmission member includes two first rotating parts spaced apart. The first rotating part is provided with a first through hole. The first rotating body and the second rotating body are disposed between the two first rotating parts. The first through hole, the second through hole and the third through hole are coaxially arranged. 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 frame assembly includes a first support surface;

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

[0024] When the hinge mechanism is in the folded state, the support assembly and the connecting rod are set at an angle relative to the first support surface to form a receiving 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 frame assembly, so that the support assembly is spaced apart from the first support surface.

[0025] In one embodiment, the linkage component further includes a third rotating member, which is rotatably connected to the base frame assembly and the first rotating member; the base frame assembly includes a first support surface, the support assembly includes a movable member and a support member, the movable member is rotatably connected to the support member, the movable 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 the unfolded state, the support member cooperates with the first support surface to form a support structure; when the hinge mechanism is in the folded state, the support member is set 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 the unfolded state, the second supporting surface is located on 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 that abuts against the support member when the hinge mechanism is in a folded state.

[0029] In one embodiment, the first rotating member is parallel to the rotation axis of the base frame assembly, and the third rotating member is parallel to but not on the same axis as the rotation axis of the base frame assembly.

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

[0031] In one embodiment, the linkage component includes:

[0032] The transmission component has one end rotatably connected to the third rotating component, and the other end rotatably connected to the first rotating component and the second rotating component.

[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 axis of the third rotating member and the base frame assembly are located in the same plane.

[0034] In one embodiment, the other end of the transmission member includes two first rotating parts spaced apart, a portion of the first rotating part being disposed between the two first rotating parts and rotatably connected to the two first rotating parts; and / or, one end of the transmission member is provided with a second rotating part, the second rotating part being hinged to a third rotating part.

[0035] In one embodiment, the linkage component includes:

[0036] The first rotating shaft has a first through hole in its first rotating part and a second through hole coaxially arranged with the first through hole in its first rotating part. The first rotating shaft passes through the first through hole and the second through hole.

[0037] In one embodiment, the third rotating member is rotatably connected to both the base frame assembly and the transmission member, and is slidably connected to the moving member.

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

[0039] The third rotating part is rotatably connected to the base frame assembly;

[0040] The second guide section has a sliding groove that slides in conjunction with the moving part.

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

[0042] In one embodiment, the linkage component includes a third rotating shaft mounted on the base frame assembly, and the third rotating part includes a first rotating hole that rotatably engages with the third rotating shaft; the fourth rotating part includes a fourth rotating shaft that is rotatably connected to the transmission component.

[0043] In one embodiment, the second guide portion includes a guide body extending from the fourth rotating portion toward the side opposite to the third rotating portion, the guide body slidingly engaging with the groove.

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

[0045] In one embodiment, the first rotating member has a first rotation axis with the base frame assembly, the first rotating member has a second rotation axis with the second rotating member, and the second rotating member has a third rotation axis with the moving 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 movable member is provided with a first arc-shaped guide portion, and the support member is provided with a second arc-shaped guide portion. The first arc-shaped guide portion and the second arc-shaped guide portion are guided and connected to each other so that the movable member and the support member are rotatably connected.

[0047] In one embodiment, a second arc-shaped groove is provided between the first arc-shaped guide portion and the second arc-shaped guide portion, and a second arc-shaped body is provided between the second arc-shaped guide portion and the second arc-shaped guide portion, with the second arc-shaped body and the second arc-shaped groove providing guiding cooperation.

[0048] In one embodiment, the movable member is provided with a clearance surface. On the cross-section of the base frame assembly in the thickness direction, the portion of the clearance surface closer to the side wall of the base frame assembly is further away from the first support surface.

[0049] When the hinge mechanism is in the unfolded state, the support is positioned away from the clearance surface; when the hinge mechanism is in the folded state, the support is positioned close to or against the clearance surface.

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

[0051] In one embodiment, the third rotating member is capable of hovering rotation so that the hinge mechanism can be hovered at any angle within the range of 45° to 135°.

[0052] In one embodiment, the hinge mechanism further includes a damping component that engages with the third rotating member with damping to enable the third rotating member to hover and rotate.

[0053] In one embodiment, the third rotating member includes a third rotating shaft and a mating part. The damping assembly includes an elastic member, a first damping member, and a mounting member fixedly connected to the base frame assembly. One end of the third rotating shaft is fixed to the mounting member, and the other end is fixed to the base frame assembly. The elastic member and the first damping member are sleeved on the third rotating shaft. The elastic member is disposed between the mounting member and the first damping member. One of the first damping members and the mating part is provided with a pressing protrusion, and the other is provided with a bearing surface that abuts against the pressing protrusion and a second groove that accommodates the pressing protrusion.

[0054] When the third rotating component rotates, the pressure protrusion presses against the pressure surface, causing the third rotating component to rotate with damping, thus achieving a hovering motion.

[0055] When the hinge mechanism is in the folded state, the pressure protrusion is positioned within the second groove, fixing the third rotating member relative to the base assembly and causing it to rotate in the direction that drives the support member towards the unfolded state. This allows the foldable electronic device to be fixed in the folded state (requiring greater force to rotate), making it convenient for users to carry.

[0056] Alternatively, when the hinge mechanism is in the unfolded state, the pressure protrusion is positioned within the second groove to fix the third rotating member relative to the base assembly and allow it to rotate in the direction that drives the support member toward the folded state. This allows the foldable electronic device to be fixed in the unfolded state (requiring greater force to rotate), facilitating large-screen use for the user.

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

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

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

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

[0061] In one embodiment, the support includes:

[0062] First support section;

[0063] The second support part has a material stiffness greater than that of the first support part. The second support part is provided 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 overlap.

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

[0065] The first part and the first support part are arranged side by side along the first direction;

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

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

[0068] The third part is arranged side by side with the second support part along the first direction;

[0069] The fourth part is connected to the third part and the second support part respectively, and the orthographic projection of the fourth part along the second direction overlaps with the third part and the second support 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 connection, bolt connection, snap-fit ​​and riveting.

[0071] In one embodiment, the support assembly further includes a limiting rod, one end of which is rotatably connected to one of the movable member and the second support, and the other end of which is movably connected to the other of the movable member and the second support.

[0072] When the hinge mechanism is in the extended state, the limit rod engages with the moving part and the second support part to prevent the second support part from continuing to rotate in the extended direction of the hinge mechanism.

[0073] In one embodiment, the angle between the limiting rod and the first support 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 part and the second support 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 extended state, the first limiting shaft abuts against the end of the limiting groove, so that the limiting rod, the moving part, and the second support part are stopped.

[0076] In one embodiment, a limiting groove is disposed on the movable member, and the second support is rotatably connected to one end of the limiting rod; the movable member is provided with two mounting bodies that are spaced apart to form a relief groove that avoids the other end of the limiting rod, and the limiting groove is disposed on at least one mounting body and communicates with the relief groove.

[0077] In one embodiment, the other end of the limiting rod is provided with a first mounting through hole, and the first limiting shaft is sleeved with the first mounting through hole. 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 engaged with a 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 first shaft body. The diameter of the first shaft body is greater than or equal to the diameter of the first mounting through hole, and the diameters of the first end shaft and the second end shaft are greater than the diameter of the first mounting through hole. At least one of the first end shaft and the second end shaft is slidably engaged with a limiting groove.

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

[0080] In one embodiment, at least a portion of the limiting rod is elastic, allowing the first mounting through hole to deform elastically.

[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 mating hole, a portion of the second limiting shaft is inserted into the mating hole and rotates with the mating hole.

[0082] In one embodiment, one end of the limiting rod is provided with a second mounting through hole, the second limiting shaft is rotatably engaged 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 that rotatably engages 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, and the diameters of the third end shaft and the fourth end shaft are greater than the diameter of the second mounting through hole. At least one of the third end shaft and the fourth end shaft rotatably engages with the mating hole.

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

[0085] In one embodiment, at least a portion of the limiting rod is elastic, allowing the second mounting through hole to deform elastically.

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

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

[0088] In one embodiment, the first support includes at least one guide for guiding the flexible transmission member.

[0089] In one embodiment, the guide portion is rib-shaped 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 having a first groove, the cover plate being fixedly connected to the support plate so that the first groove cooperates to form a first arcuate groove, and the first rotating member includes a first guide portion that rotatably cooperates with the first arcuate 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] Linkage components.

[0095] In one embodiment, the base frame assembly and the connecting rod components are each assigned to a third group, and at least two third groups are spaced apart along the length of the foldable electronic device on the housing assembly.

[0096] In one embodiment, the housing assembly includes a fixed housing, the length direction of which is arranged along the length direction of the foldable electronic device, at least two third sets are spaced apart along the length direction of the fixed housing in the housing assembly, and the base frame assembly is fixed to the fixed housing.

[0097] In one embodiment, the linkage component further includes a third rotating member, which is rotatably connected to the base frame assembly and the first rotating member; the base frame assembly includes a first supporting surface, the supporting assembly includes a movable member and a supporting member, the movable member is rotatably connected to the supporting member, the movable 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 movable members correspond one-to-one with the third group, and are spaced apart on the housing assembly along the length direction of the foldable electronic device, and adjacent two movable members are connected through the first connecting plate.

[0098] In one embodiment, the length direction of the support member is foldable, and the length direction of the electronic device is set, with at least two movable members respectively connected to the support member;

[0099] Alternatively, the foldable electronic device includes a second connecting plate, at least two support members corresponding one-to-one with at least two movable members, and are spaced apart on the housing assembly along the length direction of the foldable electronic device, with adjacent support members connected by the second connecting plate.

[0100] In one embodiment, the foldable electronic device further includes a third connecting plate, which is spaced apart along the length of the foldable electronic device, and adjacent two base frame components are connected through the third connecting plate.

[0101] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0102] The accompanying drawings, which form part of this disclosure, are used to provide a further understanding of this disclosure. The illustrative embodiments of this disclosure and their descriptions are used to explain this disclosure and do not constitute an undue limitation of this disclosure.

[0103] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0105] Figure 2 for Figure 1 The diagram shows a foldable electronic device in a folded state.

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

[0107] Figure 4 for Figure 3 The diagram shows the principle of the hinge mechanism.

[0108] Figure 5 This is a schematic diagram of the hinge mechanism shown in one embodiment (the hinge mechanism is in the unfolded state).

[0109] Figure 6 for Figure 5 The diagram shows the hinge mechanism in a folded state.

[0110] Figure 7 for Figure 5The schematic diagram of the hinge mechanism shown is viewed from another angle.

[0111] Figure 8 for Figure 5 The diagram shown is an exploded view of the hinge mechanism.

[0112] Figure 9 for Figure 8 A magnified view of a portion of region A is shown.

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

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

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

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

[0117] Figure 14 This is a schematic diagram of the mating part and the first damping element in one embodiment.

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

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

[0120] Figure 17 for Figure 15 The diagram shows the hinge mechanism in its unfolded state.

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

[0122] Figure 19 for Figure 17 A magnified schematic diagram of a portion of the hinge mechanism shown.

[0123] Figure 20 for Figure 19 The diagram shown is an exploded view of the structure of the limiting rod, the first limiting shaft, and the second limiting shaft.

[0124] Figure 21This is a partial structural schematic diagram of the support member shown in one embodiment.

[0125] Figure 22 This is a partial structural schematic diagram of a foldable electronic device shown in one embodiment.

[0126] Figure 23 This is a schematic diagram of the mating part and the first damping element in one embodiment.

[0127] Figure 24 This is a schematic diagram illustrating the application of the damping component and the synchronization component in another embodiment.

[0128] Figure 25 This is a schematic diagram of the damping component shown in another embodiment.

[0129] Figure 26 for Figure 25 The diagram shows the connection between the damping component and the third rotating shaft.

[0130] Explanation of reference numerals in the attached figures:

[0131] 10. Foldable electronic device; 11. Flexible display screen; 12. Hinge mechanism; 13. Housing assembly; 13a. Housing body; 100. Base frame assembly; 110. First arc groove; 120. Support plate; 121. First support surface; 130. Cover plate; 131. First groove; 200. Linkage component; 210. First link assembly; 210a. Second support surface; 211. Transmission component; 2111. First rotating part; 201. First through hole; 2112. Second rotating part; 212. First rotating component; 2121. First guide part; 2122. First hinge part; 202. First rotating body; 203. First notch; 204. Second through hole; 2123. Plate; 213. Second rotating component; 2 131. Anti-rotation surface; 2132. Second hinge; 205. Second rotating body; 206. Second notch; 207. Third through hole; 2133. Third hinge; 208. Third rotating body; 209. Third notch; 2010. Fourth through hole; 2134. Support; 2135. Clearance recess; 2136. Connecting part; 214. First pivot; 215. Second pivot; 220. Second connecting rod assembly; 221. Third rotating component; 2211. Third rotating part; 2001. First rotating hole; 2212. Second guide; 2002. Guide body; 2213. Fourth rotating part; 2214. Receiving recess; 2215. Support; 2216. Arc-shaped body; 222. Third pivot; 22 3. Fourth rotating shaft; 224. Mating part; 2241. Pressure bearing surface; 2242. Second groove; 300. Support assembly; 310. Moving part; 301. Slide groove; 311. Mounting body; 3111. Rotating groove; 312. Fourth notch; 313. First arc-shaped guide part; 304. Second arc-shaped groove; 314. Clearance surface; 315. Limiting groove; 316. Clearance groove; 320. Supporting part; 302. Third supporting surface; 303. Accommodating space; 321. Second arc-shaped guide part; 305. Second arc-shaped body; 322. Guide part; 323. Mating hole; 324. First supporting part; 325. Second supporting part; 330. Limiting rod; 331. First mounting through hole; 332. Second mounting through hole; 3 40. First limiting shaft; 341. First shaft body; 342. First end shaft; 343. Second end shaft; 350. Second limiting shaft; 351. Second shaft body; 352. Third end shaft; 353. Fourth end shaft; 360. Third connecting plate; 400. Synchronization assembly; 410. First gear; 420. Second gear; 430. Transmission gear set; 500. Damping assembly; 510. Mounting component; 520. Elastic component; 530. First damping component; 531. Pressing protrusion; 540. Damping ring; 550. Second damping component; 501. Mating groove; 551. First mating section; 552. Second mating section; 553. Third mating section; 554. First protrusion; 555. Second protrusion; 502. Leaving hole. Detailed Implementation

[0132] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative and do not limit the scope of protection of this disclosure.

[0133] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure.

[0134] To better understand the hinge mechanism of this disclosure, it is illustrated by a foldable electronic device in which the hinge mechanism is applied.

[0135] like Figures 1 to 4 As shown, a foldable electronic device 10 includes a flexible display screen 11 and the aforementioned hinge mechanism 12. The hinge mechanism 12 includes a base frame assembly 100, connecting rod components 200, and a support assembly 300. The connecting rod component 200 includes a first connecting rod assembly 210 and a second connecting rod assembly 220. The first connecting rod assembly 210 is rotatably connected to the base frame assembly 100 and to the support assembly 300. The first connecting rod assembly 210 and the second connecting rod assembly 220 are rotatably connected. The second connecting rod assembly 220 is rotatably connected to the base frame assembly 100 and slidably connected to the support assembly 300. There are at least two sets of connecting rod components 200 and support assemblies 300, each corresponding to one side of the base frame assembly 100. At least a portion of the flexible display screen 11 covers at least two sets 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 frame assembly 100 rotate around the base frame assembly 100. When the first connecting rod assembly 210 and the second connecting rod assembly 220 rotate along the base frame 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, causing at least a portion of the support assembly 300 to open towards the supported state, thereby causing the flexible display screen 11 covering at least two sets of support assemblies 300 to also open towards the open state. When the foldable electronic device 10 switches from the open state to the folded state, the connecting rod assemblies on both sides of the base frame assembly 100 rotate around the base frame assembly 100. When the first connecting rod assembly 210 and the second connecting rod assembly 220 rotate along the base frame 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, causing at least a part of the support assembly 300 to rotate towards the support state. As a result, the flexible display screen 11 covering at least two sets of support assemblies 300 also folds towards the folded state.

[0137] To better understand the technical solution of this application, the width direction of the support member 320 is set as 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 as 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 assembly 100 is set as the Z-axis direction, that is, Figure 10 The cross-sectional direction is shown.

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

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

[0140] like Figure 10 As shown, when the hinge mechanism 12 is in the unfolded state, at least two sets of support components 300 and at least two sets 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 Figure 11 As shown, 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 apart from the base frame assembly 100 along the thickness direction of the base frame assembly 100, so that at least two sets of support assemblies 300 and at least two sets of connecting rod members 200 form a receiving space 303 with the base frame 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 via a flexible transmission member 14, with both ends of the flexible transmission member 14 positioned on opposite sides of the base frame assembly 100. This facilitates electrical connections between electronic devices on both sides of the base frame assembly 100. The flexible transmission member 14 is flexibly positioned, not affecting the movement of the hinge mechanism 12, and is also easy to arrange. When the foldable electronic device 10 switches from a folded state to an unfolded state, the connecting rods 200 on both sides of the base frame assembly 100 drive the support assembly 300 to rotate around the base frame assembly 100. At least two sets of support assemblies 300 and at least two sets of connecting rods 200 cooperate with the base frame assembly 100 to form a support structure to support the flexible display screen 11, thereby improving 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 apart from the base frame assembly 100 along the thickness direction, allowing the support assembly 300 to be positioned away from the base frame assembly 100, thus freeing up space for the flexible display screen 11. That is, when the flexible display screen 11 requires a large bending space, the support component 300 is set away from the base frame component 100, so that the trough or peak of the flexible display screen 11 and the support component 300 are staggered as much as possible in the thickness direction of the foldable electronic device 10 after folding, thereby reducing or avoiding the partial superposition of the trough or peak of the flexible display screen 11 and the support component 300, so that the overall thickness of the foldable electronic device 10 after folding is smaller, which makes it easier to achieve the thinness and lightness of the foldable electronic device 10.

[0143] Understandably, the flexible display screen 11 covers the shell body 13a to form a protective space. At least a portion of the hinge mechanism 12 is disposed within the protective space. There are at least two sets of connecting rod components 200 and support components 300, each corresponding to one of the two sides of the base frame assembly 100. When the shell body 13a and another shell body 13a are in the open state, portions of the two support components 300 support the flexible display screen 11, allowing it to be in the unfolded state. When the shell body 13a and another shell body 13a are in the folded state, and the flexible display screen 11 is in the supported state, at least a portion of the two support components 300 are positioned opposite each other, forming a receiving space 303. A portion of the flexible display screen 11 can be bent within the receiving space 303, reducing the bending stress on the flexible display screen 11 and improving its service life.

[0144] In some embodiments, the flexible transmission element 14 is mounted on the base frame assembly.

[0145] In some embodiments, the outer sidewall of the base frame assembly 100 can be used to form a decorative sidewall of the foldable electronic device 10 to enhance the aesthetic appearance of the foldable electronic device 10.

[0146] In some embodiments, at least one of the base frame assembly 100, support assembly 300, and connecting rod component 200 is made of steel with a tensile strength of 1400 MPa to 1900 MPa. This improves the folding durability of the hinge mechanism 12.

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

[0148] Based on any of the above embodiments, such as Figure 10 As shown, in some embodiments, at least two sets of support components 300 are symmetrically arranged on both sides of the base frame assembly 100. In this way, the movement trajectories of at least two sets of support components 300 along both sides of the base frame assembly 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, such as Figure 10 As shown, in some embodiments, at least two sets of linkage components 200 are symmetrically arranged on both sides of the base frame assembly 100. Thus, the movement trajectories of at least two sets of linkage components along both sides of the base frame assembly 100 are the same, enabling the support assembly 300 to drive the flexible display screen 11 to fold inwards or unfold outwards symmetrically.

[0150] Based on any of the above embodiments, such as Figure 10 as well as Figure 11 As shown, in some embodiments, on the cross-section of the base frame assembly 100 in the thickness direction, when the hinge mechanism 12 is in the folded state, the width of the accommodating space 303 gradually increases from the base frame 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. Thus, the accommodating space 303 gradually increases to reduce stress concentration. The gradual decrease in the width of the accommodating space 303 from one end of the second rotating member 213 to the other end of the second rotating member 213 causes the flexible display screen 11 to gradually conform away from the base frame assembly 100. This facilitates the thinning and lightening of the foldable electronic device 10 and allows the flexible display screen 11 to bend smoothly, improving its bending lifespan.

[0151] like Figure 9 As shown, in some embodiments, the other end of the first rotating member 212 is provided with a first hinge portion 2122, and one end of the second rotating member 213 is provided with a second hinge portion 2132, the second hinge portion 2132 being hinged to the first hinge portion 2122.

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

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

[0154] like Figure 10 As shown, in some embodiments, on the cross-section of the base frame assembly 100 in the thickness direction, the width of the accommodating space 303 gradually increases from the base frame assembly 100 to the first pivot 214, and gradually decreases from the first pivot 214 to the other end of the second rotating member 213. Thus, the gradual increase in the width of the accommodating space 303 from the base frame assembly 100 to the first pivot 214 effectively avoids the flexible display screen 11, allowing it to bend smoothly and reducing stress concentration. The gradual decrease in the width of the accommodating space 303 from the first pivot 214 to the other end of the second rotating member 213 causes the flexible display screen 11 to gradually conform away from the base frame assembly 100. This facilitates the thinning and lightening of the foldable electronic device 10 and allows the flexible display screen 11 to bend smoothly, improving its bending lifespan.

[0155] In some embodiments, the base frame assembly 100 includes a first support surface 121. When the hinge mechanism 12 is in the 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 the 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 an accommodating space 303; the other end of the first rotating member 212 and one end of the second rotating member 213 are spaced apart from the first support surface along the thickness direction of the base frame assembly 100, so that the support assembly 300 is spaced apart from the first support surface 121. Thus, 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 apart from the first support surface 121 along the thickness direction of the base frame assembly 100, allowing the support assembly 300 to be positioned away from the base frame assembly 100, thereby freeing up space for the flexible display screen 11. That is, when the flexible display screen 11 requires a large bending space, the support component 300 is set away from the base frame component 100, so that the trough or peak of the flexible display screen 11 and the support component 300 are staggered as much as possible in the thickness direction of the foldable electronic device 10 after folding, thereby reducing or avoiding the partial superposition of the trough or peak of the flexible display screen 11 and the support component 300, so that the overall thickness of the foldable electronic device 10 after folding is smaller, which makes it easier to achieve the thinness and lightness of the foldable electronic device 10.

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

[0157] Based on any of the above embodiments, such as Figure 4 As shown, in some embodiments, the first rotating member 212 is parallel to the rotation axis of the base frame assembly 100, and the third rotating member 221 is parallel to but not on the same axis as the rotation axis of the base frame assembly 100. Thus, the first rotating member 212 and the third rotating member 221 respectively form a linkage mechanism with the base frame assembly 100, and the first rotating member 212 and the third rotating member 221 are rotatably connected, 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, such as Figure 5 , Figure 6 as well as Figure 10As shown, in some embodiments, the base frame assembly 100 includes a first support surface 121, and the support assembly 300 includes a movable member 310 and a support member 320. The movable member 310 is rotatably connected to the support member 320, rotatably connected to a first rotating member 212, and slidably connected to a third rotating member 221. When the hinge mechanism 12 is in the unfolded state, the support member 320 cooperates with the first support surface 121 to form a support structure. When the hinge mechanism 12 is in the folded state, the support member 320 is set at an angle relative to the first support surface 121 to form an accommodating space 303. Thus, during the transition of the foldable electronic device 10 from a folded state to an open state, the hinge mechanism 12 also transitions from a folded state to an unfolded state. The connecting rod assemblies on both sides of the base frame assembly 100 rotate around the base frame assembly 100. This allows the first rotating member 212 and the third rotating member 221 to rotate along the base frame assembly 100, thereby driving the moving member 310 to rotate via the third rotating member 221. The first rotating member 212 also drives the moving member 310 to slide along the length of the third rotating member 221 and move closer to the base frame assembly 100. At this time, as the supporting member 320 moves with the moving member 310, it unfolds towards a supporting state until the supporting member 320 engages with the first supporting surface 121 to form a supporting structure, thereby supporting 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. This allows the first rotating member 212 and the third rotating member 221 to rotate along the base frame assembly 100. The third rotating member 221 can drive the moving member 310 to rotate, and the first rotating member 212 can drive the moving member 310 to slide along the length of the third rotating member 221, moving it away from the base frame assembly 100. At this time, as the support member 320 moves with the moving member 310, the support member 320 is angled relative to the first support surface 121 to form a receiving space 303. This continues until the foldable electronic device 10 is in the folded state, allowing a portion of the flexible display screen 11 to bend within the receiving space 303. This reduces the bending stress on the flexible display screen 11 and improves its service life.

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

[0160] Based on the above embodiments, such as Figure 5 , Figure 6 as well as Figure 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, which abuts against the supporting member 320 when the hinge mechanism 12 is in the folded state. Thus, during the process of the foldable electronic device 10 switching from the folded state to the open state, the hinge mechanism 12 also switches from the folded state to the unfolded state. The connecting rod assemblies on both sides of the base frame assembly 100 rotate around the base frame assembly 100, so that when the first rotating member 212 and the third rotating member 221 rotate along the base frame assembly 100, the moving member 310 can be driven to rotate through 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 be positioned close to the base frame assembly 100. At this time, as the support member 320 moves with the moving member 310, it opens into a supporting state until the second supporting surface 210a is on the same supporting surface as the first supporting surface 121 and the third supporting surface 302, thus supporting 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. When the first rotating member 212 and the third rotating member 221 rotate along the base frame assembly 100, the moving member 310 can be driven to rotate by the third rotating member 221, and the moving member 310 can slide along the length direction of the third rotating member 221 and be positioned away from the base frame assembly 100. At this time, as 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 an accommodating space 303 and utilizes a stop surface.

[0161] In some embodiments, there is a transmission member 211 and at least two rotating members. One end of the transmission member 211 is rotatably connected to a third rotating member 221. The different rotating members are rotatably connected, with one rotating member rotatably connected to the other end of the transmission member 211 and rotating with the base frame assembly 100, and the other rotating member rotatably connected to the moving member 310. Thus, one rotating member is rotatably connected to the base frame assembly 100 and synchronously rotatably connected to the third rotating member 221 through the transmission member 211, enabling this rotating member to drive the rotating member rotatably connected to the moving member 310 to rotate, thereby causing the moving member 310 to move along the length direction of the third rotating member 221.

[0162] In conjunction with the foregoing embodiments, the first support surface 121 can be disposed on the rotating member rotatably connected to the base frame assembly 100, and the stop surface can be disposed on the transmission member 211.

[0163] In some embodiments, during the process of the support member 320 cooperating with the first support surface 121 to form a support structure, the support member 320 may also abut against the stop surface to make the support member 320 securely fixed.

[0164] Furthermore, such as Figure 4 As shown, in some embodiments, the rotation axes of the transmission member 211 and the third rotating member 221, the rotation axis of the rotating member and the moving member 310, and the rotation axis of the third rotating member 221 and the base frame assembly 100 are located in the same plane. This makes the movement of the first connecting assembly, the third rotating member 221, and the moving member 310 smoother, and the switching between the foldable device and the open state more fluid, resulting in a better user experience.

[0165] Optionally, in some embodiments, the other end of the transmission member 211 includes two first rotating parts 2111 spaced apart, with a portion of the rotating member disposed between the two first rotating parts 2111 and rotatably connected to them. Thus, the large rotatable connection length between the rotating part and the two first rotating parts 2111 makes the connection between the transmission member 211 and the rotating part more reliable and tighter.

[0166] Furthermore, in some embodiments, the first connecting assembly includes a first rotating shaft 214, a first rotating part 2111 having a first through hole 201, and a rotating component having a second through hole 204 coaxially arranged with the first through hole 201. The first rotating shaft 214 passes through the first through hole 201 and the second through hole 204. Thus, by utilizing the rotatable engagement of the first rotating shaft 214 with the first through hole 201 and the second through hole 204, the rotational connection between the transmission component 211 and the rotating component is achieved, which is easy to implement and provides a reliable connection.

[0167] Optionally, in some embodiments, one end of the transmission member 211 is provided with a second rotating part 2112, which is hinged to the third rotating member 221. In this way, the second rotating part 2112 is hinged to the second connecting rod, so that the transmission member 211 and the third rotating member 221 are reliably rotatably connected.

[0168] like Figures 5 to 13As shown, in some embodiments, the rotating component includes a first rotating component 212 and a second rotating component 213. One end of the first rotating component 212 is rotatably connected to the base frame assembly 100, and the third rotating component 221 is rotatably connected to the base frame assembly 100. The other end of the first rotating component 212 is rotatably connected to one end of the second rotating component 213 and the other end of the transmission component 211, and the other end of the second rotating component 213 is rotatably connected to the moving component 310. Thus, during the process of the foldable electronic device 10 switching from a folded state to an open state, the hinge mechanism 12 also switches from a folded state to an unfolded state. The connecting rod assemblies on both sides of the base frame assembly 100 rotate around the base frame assembly 100, so that when the first rotating component 212 and the third rotating component 221 rotate along the base frame assembly 100, the moving component 310 can be driven to rotate through the third rotating component 221, and the first rotating component 212 and the second rotating component 213 can be driven to rotate synchronously through the transmission component 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 move closer to the base frame assembly 100. At this time, as the moving member 310 moves, the support member 320 unfolds towards a supporting state until it engages with the first supporting surface 121 to form a supporting structure, thereby supporting the flexible display screen 11. When the foldable electronic device 10 switches from an open state to a folded state, the hinge mechanism 12 also switches from an unfolded state to a folded state. The connecting rod assemblies on both sides of the base frame assembly 100 rotate around the base frame assembly 100, causing the first rotating member 212 and the third rotating member 221 to rotate along the base frame assembly 100. The third rotating member 221 can drive the moving member 310 to rotate, and the transmission member 211 can simultaneously drive the first rotating member 212 and the second rotating member 213 to rotate. 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 move away from the base frame assembly 100. At this time, as the support member 320 moves with the moving member 310, the support member 320 is set at an angle relative to the first support 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 within 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, such as Figure 4As shown, in some embodiments, the first rotating member 212 has a first rotation axis with the base frame assembly 100, the first rotating member 212 has a second rotation axis with the second rotating member 213, and the second rotating member 213 has a third rotation axis with the moving member 310. The first, second, and third rotation axes are parallel to each other, and the second rotation axis is located between the first and third rotation axes. Thus, during the movement of the moving member 310 driven by the first rotating member 212, since the first, second, and third rotation axes are parallel to each other, and the second rotation axis is located between the first and third rotation axes, there is no interference between the first rotating member 212 and the second rotating member 213, between the transmission member 211 and the first and second rotating members 212 and 213, and between the second rotating member 213 and the moving member 310. This results in smooth movement, reduced jamming, and improved user experience of the foldable electronic device 10.

[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, and the base frame assembly 100 is provided with a first arc-shaped groove 110. The first guide portion 2121 rotatably engages with the first arc-shaped groove 110. In this way, by utilizing the rotatable engagement of the first guide portion 2121 and the first arc-shaped groove 110, a portion of the first rotating member 212 can be embedded in the base frame assembly 100 for movement, avoiding the formation of connecting protrusions that would press against the flexible display screen 11, so that the flexible display screen 11 can be flatly mounted on the hinge mechanism 12.

[0171] Optionally, the first guide portion 2121 is arc-shaped and can be inserted into the first arc-shaped groove 110. In this way, the width space (X-axis direction) of the base frame assembly can be fully utilized to accommodate the first guide portion 2121, making the hinge mechanism more compact and facilitating the thinning and lightening of foldable electronic devices.

[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 hinge portion 2122, and one end of the second rotating member 213 is provided with a second hinge portion 2132. A portion of the second hinge portion 2132 is embedded in the first hinge portion 2122 and hinged thereto. In this way, a portion of the second rotating member 213 is disposed between the two first hinge portions 2122, making the connection between the transmission member 211 and the rotating member more reliable and tighter.

[0173] Based on the above embodiments, in some embodiments, the first connecting component includes a first rotating shaft 214, and the first hinge portion 2122 includes at least two first rotating bodies 202 spaced apart, with a first notch 203 spaced apart 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 spaced apart, with a second notch 206 spaced apart 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, such that the second through hole 204 and the third through hole 207 are coaxially arranged, and the first rotating shaft 214 passes through the second through hole 204 and the third through hole 207. Thus, 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 together, the two are tightly connected, the rotational connection length is large, and the stress strength is high. Then, the rotational connection between the first rotating member 212 and the second rotating member 213 is realized by the rotational engagement of the first rotating shaft 214 with the second through hole 204 and the third through hole 207, which is easy to implement and the connection is reliable.

[0174] Furthermore, such as Figure 6 as well as Figures 9 to 11 As shown, in some embodiments, the other end of the transmission component 211 includes two first rotating parts 2111 spaced apart. Each first rotating part 2111 has a first through hole 201. A first rotating body 202 and a second rotating body 205 are disposed between the two first rotating parts 2111. The first through hole 201, the second through hole 204, and the third through hole 207 are coaxially arranged. A first rotating shaft 214 passes through the first through hole 201, the second through hole 204, and the third through hole 207. Thus, by placing the first rotating body 202 and the second rotating body 205 between the two first rotating parts 2111, the three are nested together, tightly connected, with a large rotational connection length and high strength. Furthermore, by utilizing the rotational engagement of the first rotating shaft 214 with the first through hole 201, the second through hole 204, and the third through hole 207, the other end of the transmission component 211 is rotatably connected to the first rotating part 212 and the second rotating part 213, respectively. The structure is compact, easy to implement, and the connection is reliable.

[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, and the other end of the second rotating member 213 includes a third hinge portion 2133. The third hinge portion 2133 includes at least two third rotating bodies 208 spaced apart, and a third notch 209 is formed between adjacent three rotating bodies 208. The third rotating body 208 is provided with a fourth through hole 2010. The moving member 310 includes at least two mounting bodies 311 spaced apart, and a fourth notch 312 is formed between adjacent two mounting bodies 311. The mounting body 311 is provided with a rotating groove 3111. One mounting body 311 is inserted into the third notch 209, and one third rotating body 208 is inserted into the fourth notch 312. The fourth through hole 2010 and the rotating groove 3111 are coaxially arranged. The second rotating shaft 215 passes through the fourth through hole 2010 and the rotating groove 3111. Thus, the mounting body 311 is accommodated by the third notch 209 formed by two adjacent third rotating bodies 208, and the third rotating body 208 is accommodated by the fourth notch 312 formed by two adjacent mounting bodies 311, so that the second rotating member 213 and the moving member 310 are nested together, with a tight connection, a large rotational connection length, and high stress strength. Furthermore, the second rotating shaft 215 is connected to the fourth through hole 2010, and the second rotating shaft 215 is fitted into the rotating groove 3111, allowing the second rotating member 213 to be rotatably connected to the moving member 310. This method is easy to implement and the connection is reliable.

[0176] Based on any of the above embodiments, such as Figure 6 , Figure 8 , Figure 9 , Figures 12 to 13 As shown, in some embodiments, the linkage component 200 includes a third rotating member 221, a first linkage assembly 210, and a support assembly 300 includes a moving member 310. The third rotating member 221 is rotatably connected to the base frame assembly 100 and the transmission member 211, respectively, and is slidably connected to the moving member 310. Thus, the transmission member 211 drives the third rotating member 221 and the transmission member 211 to rotate synchronously, thereby driving the first rotating member 212 and the moving member 310 to rotate synchronously, facilitating the use of the first rotating member 212 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, during the process of switching the foldable electronic device 10 from a folded state to an open state, the hinge mechanism 12 also switches from a folded state to an unfolded state. The connecting rod assemblies on both sides of the base frame assembly 100 rotate around the base frame assembly 100, so that when the first rotating member 212 and the third rotating member 221 rotate synchronously along the base frame 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 be positioned close to the base frame assembly 100. At this time, as the support member 320 moves with the moving member 310, the support member 320 opens towards the support state until the support member 320 cooperates with the first support surface 121 to form a support structure, so as to use the support 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. This allows the first rotating member 212 and the third rotating member 221 to rotate along the base frame assembly 100. The third rotating member 221 can drive the moving member 310 to rotate, and the first rotating member 212 can drive the moving member 310 to slide along the length of the third rotating member 221, moving it away from the base frame assembly 100. At this time, as the support member 320 moves with the moving member 310, the support member 320 is angled relative to the first support surface 121 to form a receiving space 303. This continues until the foldable electronic device 10 is in the folded state, allowing a portion of the flexible display screen 11 to bend within the receiving space 303. This reduces the bending stress on the flexible display screen 11 and improves its service life.

[0178] Furthermore, such as Figure 6 , Figure 8 , Figure 9 , Figures 12 to 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 frame assembly 100. The moving member 310 is provided with a groove 301 that slides in conjunction with the second guide portion 2322. Thus, the third rotating member 221 is rotatably connected to the base frame assembly 100 through the third rotating portion 2211. During the rotation of the moving member 310, the moving member 310 is driven by the first rotating member 212 and slides along the length direction of the second guide portion 2322.

[0179] In conjunction with the aforementioned first rotating member 212 and second rotating member 213, during the process of switching the foldable electronic device 10 from a folded state to an open state, the hinge mechanism 12 also switches from a folded state to an unfolded state. The connecting rod assemblies on both sides of the base frame assembly 100 rotate around the base frame assembly 100. When the first rotating member 212 and the third rotating member 221 rotate synchronously along the base frame assembly 100, the third rotating member 221 can drive the moving member 310 to rotate. Simultaneously, the first rotating member 212 and the transmission member 211 transmit power synchronously, causing the second rotating member 213 to rotate in a set direction. This causes the moving member 310 to slide along the length of the second guide portion 2322 and move closer to the base frame assembly 100. At this time, as the supporting member 320 moves with the moving member 310, the supporting member 320 unfolds towards a supporting state until it engages with the first supporting surface 121 to form a supporting structure, thereby supporting 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. This allows the first rotating member 212 and the third rotating member 221 to rotate along the base frame assembly 100. When the third rotating member 221 drives the moving member 310 to rotate, the first rotating member 212 and the transmission member 211 are synchronously driven, causing the second rotating member 213 to rotate in a set direction. This causes the moving member 310 to slide along the length of the second guide portion 2322 and move away from the base frame assembly 100. During this time, as the support member 320 moves with the moving member 310, it is angled relative to the first support surface 121 to form a receiving space 303. This continues until the foldable electronic device 10 is in the folded state, allowing a portion of the flexible display screen 11 to bend within the receiving space 303. This reduces the bending stress on the flexible display screen 11 and improves its lifespan.

[0180] It should be noted that the second guide part 2322 can be implemented in various ways, including but not limited to guide rods, guide blocks, guide bars, and guide rods.

[0181] Furthermore, 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 member 2211" can be integrally molded; or it can be a separate component that can be separated from the "other parts of the third rotating member 221, such as the third rotating member 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 member 2211" to form a whole.

[0182] Equivalently, "a certain body" or "a certain part" can be a portion of the corresponding "component," meaning that the "a certain body" or "a certain part" is integrally formed and manufactured 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," meaning that the "a certain body" or "a certain part" can be manufactured independently and then combined with the "other parts of the component" to form a whole. The expression of "a certain body" or "a certain part" in this disclosure is merely one embodiment for ease of reading and is not intended to limit the scope of protection of this disclosure. Any solution that includes the above features and has the same function should be understood as an equivalent technical solution of this disclosure.

[0183] Furthermore, such as Figure 6 , Figure 8 , Figure 9 , Figures 12 to 13 As shown, in some embodiments, the third rotating member 221 further includes a fourth rotating part 2213, which is located between the second guide part 2322 and the third rotating part 2211, and is rotatably connected to the transmission member 211. Thus, by having the fourth rotating part 2213 positioned between the second guide part 2322 and the third rotating part 2211, and rotatably connected to the transmission member 211, a four-bar linkage is formed between the third rotating member 221, the transmission member 211, the first rotating member 212, and the base frame 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 drives the moving member 310 to move along the guiding direction of the second guide part 2322. The moving member 310 then drives the support member 320 to rotate, achieving switching between the support state and the support state, with reliable transmission.

[0184] Optionally, in some embodiments, the third rotating member 221 includes a third rotating shaft 222 mounted on the base frame assembly 100, and the third rotating part 2211 includes a first rotating hole 2001 that rotatably engages with the third rotating shaft 222. The fourth rotating part 2213 includes a fourth rotating shaft 223, which is rotatably connected to the transmission member 211. Thus, by utilizing the engagement between the third rotating shaft 222 mounted on the base frame assembly 100 and the first rotating hole 2001, the third rotating member 221 is rotatably mounted on the base frame assembly 100. Furthermore, the rotatable connection between the fourth rotating shaft 223 and the transmission member 211 achieves a rotatable connection between the third rotating member 221 and the transmission member 211, resulting in a compact structure that is easy to implement.

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

[0186] like Figure 12 as well as Figure 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 support surface 302, and the first support surface 121 form a receiving space 303. Thus, the receiving recess 2214 can better adapt to the curvature of the flexible display screen 11. The shape of the receiving recess 2214 can be designed according to the curvature of the flexible display screen 11, so that it can both form a receiving space 303 and fit against the flexible display screen 11 to support the bending of the flexible display screen 11.

[0187] It should be noted that the recess 2214 can be implemented in various ways, including circular arc groove, elliptical arc groove, teardrop groove, etc.

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

[0189] In addition, the arc-shaped body 2216 also facilitates the insertion of the guide body 2002 below the moving part 310, away from the first support surface 121, so that the transition between the support body 2215 and the guide body 2002 is smooth and interference is reduced.

[0190] In one example, when the hinge mechanism 12 is in a folded state, the two third rotating members 221 are arranged opposite each other, and the arcuate body 2216 of the two third rotating members 221 can form an accommodating space 303.

[0191] In some embodiments, the hinge mechanism 12 further includes a synchronizing gear and a damping assembly 500, which is mounted on the third rotating shaft 222. Thus, by mounting the synchronizing gear and damping assembly 500 on the third rotating shaft 222, at least two sets of third rotating members 221 can rotate synchronously with damping, preventing the foldable electronic device 10 from easily rotating and making it convenient to use.

[0192] Based on any embodiment of the moving part 310 described above, such as Figure 5 , Figure 6 , Figure 8 , Figure 12 as well as Figure 13 As shown, in some embodiments, the movable member 310 is provided with a first arc-shaped guide portion 313, and the support member 320 is provided with a second arc-shaped guide portion 321. The first arc-shaped guide portion 313 and the second arc-shaped guide portion 321 are guidedly connected to each other, so that the movable member 310 and the support member 320 are rotatably connected. In this way, by using the guiding connection of the first arc-shaped guide portion 313 and the second arc-shaped guide portion 321, the movable member 310 and the support member 320 are rotatably connected, and the rotation range is controllable.

[0193] It should be noted that the first arc-shaped guide part 313 and the second arc-shaped guide part 321 can be in various forms of cooperation, including but not limited to arc-shaped slide rail structure, arc-shaped guide rail block structure, hinge structure, etc.

[0194] Furthermore, such as Figure 6 , Figure 8 , Figure 12 as well as Figure 13 As shown, in some embodiments, a second arc-shaped groove 304 is provided between the first arc-shaped guide portion 313 and the second arc-shaped guide portion 321, and a second arc-shaped body 305 is provided between the other. The second arc-shaped body 305 and the second arc-shaped groove 304 are guided and engaged. In this way, by inserting the second arc-shaped body 305 into the second arc-shaped groove 304, a rotational engagement is achieved, allowing a portion of the support member 320 to be embedded in the moving member 310 for movement. This avoids the formation of connecting protrusions that would press against the flexible display screen 11, allowing the flexible display screen 11 to be flatly mounted on the hinge mechanism 12.

[0195] Furthermore, such as Figures 10 to 13As shown, in some embodiments, the movable member 310 is provided with a clearance surface 314. On the cross-section of the hinge mechanism 12 in the thickness direction, the portion of the clearance surface 314 closer to the sidewall of the base assembly 100 is further away from the first support surface 121. When the hinge mechanism 12 is in the unfolded state, a portion of the support member 320 is positioned away from the clearance surface 314. When the hinge mechanism 12 is in the folded state, the support member 320 is positioned against or close to the clearance surface 314. Thus, by utilizing the clearance surface 314, when the hinge mechanism 12 is in the unfolded state, a portion of the support member 320 is positioned away from the clearance surface 314 and abuts against the first rotating member 212, while another portion of the support member 320 abuts against the clearance surface 314, allowing the support member 320 to reliably provide support. When the hinge mechanism 12 is in the folded state, the support member 320 is positioned against or close to the clearance surface 314, thereby creating clearance and forming the accommodating space 303.

[0196] It should be noted that there are multiple ways to set the "avoidance surface 314", including but not limited to avoidance slopes and avoidance arc surfaces, as long as they can form an avoidance space that does not interfere with the movement of the support member 320.

[0197] like Figures 10 to 13 As shown, in some embodiments, the support member 320 is a support plate 120, and the clearance surface 314 is a clearance slope that fits against the support member 320. On the cross-sectional plane of the hinge mechanism 12 in the thickness direction, the clearance slope slopes downwards from one end away from the base frame assembly 100 to the other end near the base frame assembly 100, gradually moving away from the first support surface 121. Thus, using the clearance slope, when the hinge mechanism 12 is in the unfolded state, one end of the support member 320 is positioned away from the other end of the clearance slope and abuts against the first rotating member 212, while the other end of the support member 320 abuts against one end of the clearance slope. During the process of the hinge mechanism 12 switching from the unfolded state to the folded state, one end of the support member 320 gradually moves closer to the other end of the clearance slope until the support member 320 fits against the clearance slope, thus reliably supporting the support member 320.

[0198] Similarly, the support member 320 is an arc-shaped plate, and the clearance surface 314 is a clearance arc surface that fits against the support member 320. On the cross-sectional plane of the hinge mechanism 12 in the thickness direction, the clearance arc surface bends downward from one end away from the base frame assembly 100 to the other end near the base frame assembly 100, gradually moving away from the first support surface 121. Thus, by utilizing the clearance arc surface, when the hinge mechanism 12 is in the unfolded state, one end of the support member 320 is positioned away from the other end of the clearance arc surface and abuts against the first rotating member 212, while the other end of the support member 320 abuts against one end of the clearance arc surface. During the process of the hinge mechanism 12 switching from the unfolded state to the folded state, one end of the support member 320 gradually moves closer to the other end of the clearance arc surface until the support member 320 fits against the clearance arc surface, thus reliably supporting the support member 320.

[0199] Based on any embodiment of the moving part 310 described above, in some embodiments, the hinge mechanism 12 further includes a damping component 500, which engages with the first link assembly 210 and / or the second link assembly 220 in a damped rotatable manner. Thus, by providing the damping component 500, the link member 200 can be rotatably connected to the base frame assembly 100 with damping, preventing the foldable electronic device 10 from easily rotating and making it convenient to use.

[0200] It should be noted that the damping component 500 can be set 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 component 500 is mounted on the third pivot 222. Thus, by mounting the damping component 500 on the third pivot 222, damped rotation of at least two sets of second linkage assemblies 220 is achieved, preventing the foldable electronic device 10 from easily rotating and making it convenient to use.

[0202] Furthermore, such as Figure 5 , Figure 7 as well as Figure 23As shown, in some embodiments, the third rotating member 221 includes a third rotating shaft 222 and a mating part 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 frame 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 frame assembly 100. The elastic member 520 and the first damping member 530 are sleeved on the third rotating shaft 222, with the elastic member 520 disposed between the mounting member 510 and the first damping member 530. Between the first damping member 530 and the mating part 224, one side has a pressing protrusion 531, and the other side has a 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 bearing surface, causing the third rotating member to rotate with damping, thus achieving hovering motion. When the hinge mechanism is in the folded state, the pressure protrusion is positioned within the second groove, fixing the third rotating member relative to the base assembly and causing it to rotate in the direction that drives the support member towards the unfolded state. This allows the foldable electronic device to be fixed in the folded state (requiring greater force to rotate), making it convenient for users to carry.

[0203] When the hinge mechanism is in the unfolded state, the pressure protrusion is positioned within the second groove, fixing the third rotating component relative to the base assembly and causing it to rotate along the direction of the driving support component towards the folded state. This allows the foldable electronic device to be fixed in the unfolded state (requiring greater force to rotate), facilitating large-screen use for the user.

[0204] Thus, when the hinge mechanism 12 is in the folded state, the support member 320 is in the supported state, and the pressure protrusion 531 is disposed in the second groove 2242 to fix the connecting rod member 200 relative to the base frame assembly 100 and to drive the support member 320 towards the supported state direction. Furthermore, under the force of the elastic member 520, a greater rotational force is required to disengage the pressure protrusion 531 from the second groove 2242 and onto the pressure surface 2241, ensuring that the flexible display screen 11 of the foldable electronic device 10 is securely fixed in the folded state for easy carrying by the user. When the hinge mechanism 12 is in the unfolded state, the support member 320 is in the supported state, and the pressure protrusion 531 is disposed in the second groove 2242 to fix the connecting rod member 200 relative to the base frame assembly 100 and to drive the support member 320 towards the supported state direction. Furthermore, under the force of the elastic element 520, a greater rotational force is required to disengage the pressure protrusion 531 from the second groove 2242 and onto the pressure surface 2241, so that the flexible display screen 11 of the foldable electronic device 10 can be securely fixed when unfolded, making it convenient for users to view and operate the large-screen display.

[0205] Specifically, when the support member 320 is in the folded and unfolded states, the pressure protrusion 531 is disposed within the second groove 2242 to fix the connecting rod member 200 relative to the base frame assembly 100. Thus, when the hinge mechanism 12 is in the folded state, the support member 320 is in the supported state, and the pressure protrusion 531 is disposed within the second groove 2242 to fix the connecting rod member 200 relative to the base frame assembly 100, and can only be used in the direction that drives the support member 320 towards the supported state. Furthermore, under the force of the elastic member 520, a greater rotational force is required to disengage the pressure protrusion 531 from the second groove 2242 and onto the bearing surface 2241, ensuring that the flexible display screen 11 of the foldable electronic device 10 is securely fixed in the folded state for easy carrying by the user. As 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 another shell body 13a relative to each other. During this process, the pressing protrusion 531 gradually disengages from the second groove 2242 onto the bearing surface 2241. At this time, the pressing protrusion 531 is resisted by the elastic element 520, which also provides rotational damping during its repositioning with the bearing surface 2241. When the pressing protrusion 531 falls back into the second groove 2242, the folded state is in the unfolded state, the support member 320 is in the supported state, and the pressing protrusion 531 is positioned within the second groove 2242 to fix the connecting rod member 200 relative to the base frame assembly 100, and it can only move in the direction that drives the support member 320 toward the supported state. Furthermore, under the force of the elastic element 520, a greater rotational force is required to move the pressing protrusion 531 away from the second groove 2242, ensuring a secure fixation for convenient viewing and operation of the large screen display.

[0206] It should be noted that the third rotating part 221 and the mating part 224 can be integrally formed and fixed, or they can be manufactured separately and then fixed separately for transmission connection.

[0207] It should be noted that the "damping component 500" can also be implemented in other ways, such as using friction plates to increase the rotational friction of the rotating component; or using elastic element 520 to increase the rotational resistance of the rotating component; or using magnetic attraction element to increase the rotational resistance of the rotating component, etc.

[0208] like Figure 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 partially frictionally engages with the base frame assembly 100. Thus, the damping ring 540 increases the rotational friction of the third rotating shaft 222, thereby increasing the rotational resistance that the third rotating shaft 222 needs to overcome. This allows the third rotating shaft 222, as well as the housing (first housing 13 or second housing 14) connected to the third rotating shaft 222 and the support member 320, to be suspended and fixed within a set rotational range, facilitating user operation.

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

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

[0211] In combination with any of the above embodiments, such as Figure 25 as well as Figure 26 As shown, in some embodiments, the damping assembly 500 further includes a second damping element 550, which is fixed in the base frame assembly 100. The second damping element 550 is in a tight frictional engagement with the third rotating shaft 222 to at least increase the resistance of the third rotating shaft 222 when rotating from the unfolded state to the folded state. Thus, by using the tight engagement between the second damping element 550 and the third rotating shaft 222, the resistance of the third rotating shaft 222 when rotating from the unfolded state to the folded state can be increased, allowing the flexible display screen 11 of the foldable electronic device 10 to be locked and fixed in the unfolded state, facilitating viewing and operation of the large-screen display by the user.

[0212] Optionally, in some embodiments, the second damping element 550 is fastened to the third rotating shaft 222, which can increase the resistance that the third rotating shaft 222 needs to overcome within its rotation range. Thus, the flexible display screen 11 of the foldable electronic device 10 can be suspended and locked at any position during bending, allowing users to bend and use the flexible display screen 11 according to their personal preferences.

[0213] In one example, such as Figure 25 as well as Figure 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 section 551, a second mating section 552, a third mating section 553, a first protrusion 554 disposed between the first mating section 551 and the second mating section 552, and a second protrusion 555 disposed between the second mating section 552 and the third mating section 553. The second mating section 552 is disposed between the first mating section 551 and the third mating section 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 rotational resistance of the third rotating shaft 222. Thus, the third rotating shaft 222 can be 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 rotational resistance of the third rotating shaft 222. This allows the flexible display screen 11 of the foldable electronic device 10 to be securely fixed in the unfolded state, making it convenient for users to view and operate the large-screen display.

[0214] Optionally, in some embodiments, the third rotating shaft 222 is a non-cylindrical column, and the mating groove 501 is adapted to the third rotating shaft 222. For example, the third rotating shaft 222 is a flat shaft, and the mating groove 501 is a flat hole. In this way, it is convenient to use the first protrusion 554 and the second protrusion 555 to abut against the third rotating shaft 222, so as to increase the resistance that the third rotating shaft 222 needs to overcome when switching from the unfolded state to the folded state.

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

[0216] Based on any of the above embodiments, in some embodiments, there are at least two sets of connecting rod components 200 and support components 300, which are respectively disposed on both sides of the base frame component 100; the folding mechanism 12 also includes a synchronization component 400, through which the connecting rod components 200 disposed on both sides of the base frame component 100 are synchronously rotated and connected.

[0217] In some embodiments, the material parameters of at least some components in the damping assembly 500 satisfy at least one of the following: 550HV ≥ surface hardness ≥ 450HV, yield strength ≥ 1600MPa, and tensile strength ≥ 1700MPa. This helps to ensure the hovering effect of the hinge mechanism 12 and improve the user experience of the foldable electronic device 10.

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

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

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

[0221] like Figure 6 As shown, in some embodiments, the synchronization component 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 shaft 222 of one set of connecting rod components 200, and the second gear 420 rotates synchronously with the third shaft 222 of another set of connecting rod components 200.

[0222] It should be noted that the first gear 410 and the second gear 420 can mesh directly or be meshed using the spacing of other transmission gears.

[0223] Furthermore, the synchronization component 400 can be implemented in various ways, including but not limited to the aforementioned gear synchronous meshing transmission, as well as other synchronous rotation implementation methods, such as pulley mechanisms, sprocket mechanisms, 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, which is disposed 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 the support member 320, so that the support member 320 and a portion of the first rotating member 212 form a first support surface. Thus, since the first rotating member 212 is rotatably connected to the base frame assembly 100, the first rotating member 212 is rotatably connected to the support assembly 300. The first rotating member 212 and the third rotating member 221 are rotatably connected. The third rotating member 221 is rotatably connected to the base frame 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 frame 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 an unfolded state and a folded state with the hinge mechanism 12. During the folding or unfolding process, the support part 2134 lifts the support member 320 so that the support member 320 and part of the first rotating member 212 form a first support surface. In this way, the hinge mechanism 12 can support the flexible display screen 11 through the first support surface in the moving state, thereby preventing the flexible display screen 11 from developing dents.

[0225] Furthermore, it is understandable that since the flexible display screen 11 does not produce pits, it will not interfere with the internal components of the foldable electronic device 10. This increases the free space for screen movement, allowing the flexible display screen 11 to bend more freely, improving its bending lifespan, and thus extending the lifespan of the foldable electronic device 10. Similarly, it also helps to reduce the complexity of the internal structural layout of the foldable electronic device 10.

[0226] Furthermore, the support portion 2134 lifts 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 frees up more space for the torque mechanism and the through-axis FPC.

[0227] It should be noted that the motion 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 the support part 2134 can be implemented in various ways, including structures such as convex hull, protrusion, convex block, and convex column, which can lift the support part 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 part 2134 is disposed away from the supporting member 320, and the second supporting surface 210a and the third supporting surface 302 cooperate to form a supporting structure. During the process of the hinge mechanism 12 switching from the unfolded state to the folded state, or during the process of the hinge mechanism 12 switching from the folded state to the unfolded state, the supporting part 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, when the foldable electronic device 10 is in the unfolded state, it can use the second supporting surface 210a and the third supporting surface 302 to form a supporting structure to support the flexible display screen 11, so that the flexible display screen 11 will not have a dent, and the full-screen display quality of the foldable electronic device 10 is improved. And during the process of the hinge mechanism 12 switching from the unfolded state to the folded state, or during the process of the hinge mechanism 12 switching from the folded state to the unfolded state. The support member 320 is lifted by the support part 2134 so that the second support surface 210a and the third support surface 302 form a support structure, which makes it easier to support the flexible display screen 11 and thus avoids the flexible display screen 11 from getting dented.

[0230] like Figures 15 to 18 As shown, optionally, in some embodiments, one end of the second rotating member 213 is provided with a clearance 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 positioned away from the support member 320, and part of the guide portion 322 is embedded in the clearance recess 2135, so that the second support surface 210a and the third support surface 302 are in close proximity to form a support structure. In this way, through the cooperation of the guide portion 322 and the clearance recess 2135, interference between the second rotating member 213 and the support member 320 in the unfolded state can be avoided, and the third support surface 302 can be prevented from tilting up and affecting the support effect of the second support surface. Moreover, the second support surface 210a and the third support surface 302 are made as close as possible to each other to improve the support effect. During the transition of the hinge mechanism 12 from the unfolded state to the folded state, or vice versa, the support portion 2134 lifts the guide portion 322, so that the second support surface 210a and the third support surface 302 form a support structure. This does not affect the formation of the support structure.

[0231] It should be noted that the terms "first support surface" and "second support surface" should be interpreted broadly, meaning they only need to support the flexible display screen 11. Specifically, the first support surface and the second support surface include, but are not limited to, the same plane or two parallel planes, as long as they meet the support requirements.

[0232] like Figure 15 as well as Figure 17 As shown, in some embodiments, one end of the second rotating member 213 is provided with a connecting portion 2136 that is rotatably connected to the other end of the first rotating member 212, and a clearance recess 2135 is disposed between the connecting portion 2136 and the support portion 2134. Thus, by placing the clearance recess 2135 between the connecting portion 2136 and the support portion 2134, the fit between the second rotating member 213 and the support member 320 becomes tighter, which helps to improve the compactness of the hinge mechanism 12. When the foldable electronic device is in a folded state, this hinge mechanism can better wrap and protect the flexible display screen, improving the drop resistance of the foldable electronic device.

[0233] It should be noted that the connecting part 2136 can be implemented in various ways, including the second hinge part 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 frame assembly 100 is provided with a first arc-shaped groove 110. The first guide portion 2121 rotatably engages with the first arc-shaped groove 110. The second support surface 210a is disposed on the outer surface of the first plate 2123. Thus, by utilizing the rotatable engagement of the first guide portion 2121 and the first arc-shaped groove 110, a portion of the first rotating member 212 can be embedded into the base frame assembly 100 for movement, avoiding the formation of connecting protrusions that would press against the flexible display screen 11. This allows the flexible display screen 11 to be flatly mounted on the hinge mechanism 12. Furthermore, disposing the second support surface 210a on the first plate 2123 is easy to implement and facilitates the connection between the third support surface 302 and the base frame assembly 100.

[0235] In some embodiments, the base frame assembly 100 includes a first support surface 121. When the hinge mechanism 12 is in the unfolded state, the second support surface 210a and the third support surface 302 cooperate with the first support surface 121 to form a support structure. When the hinge mechanism 12 is in the folded state, the second support surface 210a is set at an angle relative to the first support surface 121, forming a teardrop-shaped receiving space 303, which can better wrap the flexible display screen, thereby improving the protective performance of the flexible display screen and enhancing the drop resistance of the foldable electronic device.

[0236] Combination Figure 4 , Figure 11 as well as Figure 13As shown, one end of the first rotating component is rotatably connected to the base frame assembly via an arc-shaped first guide portion. The other end of the first rotating component is connected to one end of the second rotating component, and the other end of the second rotating component is rotatably connected to the moving component. The flexible display screen is guided to bend by setting the second and third support surfaces at an angle. The length of the third support surface is greater than that of the second support surface, causing the flexible display screen to gradually fold and close after bending. The trough of the bend in the flexible display screen aligns with the first support surface. When the foldable electronic device in its folded state collides with something, the hinge mechanism deforms. However, during deformation, the three support surfaces can still provide limiting support for the flexible display screen, effectively protecting it.

[0237] In any of the above embodiments, such as Figure 19 As shown, in some embodiments, the support assembly 300 further includes a limiting rod 330. One end of the limiting rod 330 is rotatably connected to one of the moving member 310 and the support member 320, and the other end of the limiting rod 330 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 limiting rod 330 engages with the moving member 310 and the support member 320 to prevent the support member 320 from continuing to rotate in the unfolding direction of the hinge mechanism 12. In this way, by engaging with the moving member 310 and the support member 320 to prevent the support member 320 from continuing to rotate in the unfolding direction of the hinge mechanism 12, it is possible to effectively prevent the support member 320 from tilting up, thereby preventing the hinge mechanism 12 from over-unfolding and causing damage to parts or separation of related parts, or even damage to the flexible display screen 11.

[0238] like Figure 19 As shown, in some embodiments, the angle between the limiting rod 330 and the first support surface is greater than 30° to form a stop structure. Thus, by limiting the angle between the limiting rod 330 and the first support surface, a downward force is generated between the limiting rod 330, the support member 320, and the moving member 310, thereby pulling down the support member 320 and restricting its continued rotation in the unfolding direction of the hinge mechanism 12, effectively preventing the support member 320 from tilting.

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

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

[0241] like Figure 19As shown, in some embodiments, the support assembly 300 further includes a first limiting shaft 340, the other end of which is connected to the first limiting shaft 340. The other of the moving member 310 and the support member 320 is provided with a limiting groove 315. A portion of the first limiting shaft 340 is inserted into the limiting groove 315 and engages with it. When the hinge mechanism 12 is in the unfolded state, the first limiting shaft 340 abuts against the end of the limiting groove 315, causing the limiting rod 330 to engage with both the moving member 310 and the support member 320. Thus, when the hinge mechanism 12 is in motion, it moves within the limiting groove 315 via the first limiting shaft 340 without affecting the movement between the moving member 310 and the support member 320. When the hinge mechanism 12 moves to the unfolded state, the first limiting shaft 340 abuts against the end of the limiting groove 315, causing the limiting rod 330 to engage with both the moving member 310 and the support member 320. This prevents the hinge mechanism 12 from over-expanding, which could lead to damage to parts or separation of related parts, or even damage to the flexible display screen 11.

[0242] Optionally, such as Figure 19 As shown, in some embodiments, a limiting groove 315 is disposed on the movable member 310, and the support member 320 is rotatably connected to one end of the limiting rod 330. The movable member 310 is provided with two mounting bodies 311 that are spaced apart to form a relief groove 316 that avoids the other end of the limiting rod 330. The limiting groove 315 is disposed on at least one mounting body 311 and communicates with the relief groove 316. In this way, by disposing of the limiting groove 315 on the movable member 310, the thickness space of the movable member 310 can be fully utilized, so that the support member 320 can be made as thin as possible. The setting of the relief groove 316 will not interfere with the movement of the limiting rod 330, and facilitates the assembly between the limiting rod 330, the first limiting shaft 340, and the movable member 310.

[0243] Specifically, during the installation of the limiting rod 330 and the moving part 310, the other end of the limiting rod 330 is placed in the clearance groove 316, and the first limiting shaft 340 is inserted into the limiting groove 315 to enter the clearance groove 316 and connect with the other end of the limiting rod 330, thus completing the assembly. This is beneficial to improving the assembly efficiency of the hinge mechanism 12.

[0244] It should be noted that there are various ways to connect the first limiting shaft 340 and the limiting rod 330, including but not limited to welding, integral molding, bonding, pin fixing and other fixed connection methods, as well as shaft connection, hinge connection and so on.

[0245] like Figure 19 as well as Figure 20As shown, in some embodiments, the other end of the limiting rod 330 is provided with a first mounting through hole 331, and the first limiting shaft 340 is sleeved with the first mounting through hole 331. The diameter of the first limiting shaft 340 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 adopt a zero-fit or interference fit, which improves the stopping fit accuracy between the limiting rod 330, the moving member 310, and the support member 320.

[0246] like Figure 19 as well as Figure 20 As shown, in some embodiments, the first limiting shaft 340 includes a first shaft body 341 rotatably engaged with the first mounting through hole 331, a first end shaft 342 fixed to one end of the first shaft body 341, and a second end shaft 343 fixed to the other end of the first shaft body 341. The diameter of the first shaft body 341 is greater than or equal to the diameter of the first mounting through hole 331, and the diameters of the first end shaft 342 and the second end shaft 343 are greater than the diameter of the first mounting through hole 331. At least one of the first end shaft 342 and the second end shaft 343 is slidably engaged with the limiting groove 315. Thus, the engagement of the first end shaft 342 and the second end shaft 343 can prevent the tolerance between the limiting rod 330 and the first limiting shaft 340 from being too long, thereby controlling the process accuracy. Furthermore, by having at least one of the first end shaft 342 and the second end shaft 343 slide in engagement with the limiting groove 315, the limiting rod 330 can slide and rotate relative to the limiting groove 315. However, 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 in engagement with the moving member 310 and the support member 320.

[0247] Optionally, in some embodiments, the first end shaft 342 and / or the second end shaft 343 are provided with a first guide portion. And / or, the end of the first mounting through hole 331 is provided with a first guide hole. In this way, the first end shaft 342 or the second end shaft 343 can be inserted into the first mounting through hole 331 by the guiding action of the first guide portion and / or the first guide hole, so as to achieve a pressing fit between the first mounting through hole 331 and the first shaft body 341.

[0248] There are several ways to implement the first inlet section, including but not limited to rounded corner structure or inverted cone corner structure.

[0249] There are several ways to implement the first inlet hole, including but not limited to rounded hole structure or inverted conical hole structure.

[0250] In some embodiments, at least a portion of the limiting rod 330 is elastic, allowing the first mounting through hole 331 to deform elastically. This facilitates pressing the first limiting shaft 340 into the first mounting through hole 331, increasing the rotational damping of the limiting rod 330, and improving the hovering effect of the hinge mechanism 12.

[0251] In conjunction with the aforementioned embodiment of the mounting body 311, assembly is facilitated, and the first limiting shaft 340 and the limiting rod 330 are tightly fitted together to improve stopping accuracy.

[0252] like Figure 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. The support member 320 is provided with a mating hole 323. A portion of the second limiting shaft 350 is inserted into the mating hole 323 and rotatably engages with it. Thus, by inserting a portion of the second limiting shaft 350 into the mating hole 323 and rotatably engaging with it, it is convenient to achieve a rotatable connection between one end of the limiting rod 330 and the support member 320.

[0253] It should be noted that there are various ways to connect the first limiting shaft 340 and the limiting rod 330, including but not limited to welding, integral molding, bonding, pin fixing and other fixed connection methods, as well as shaft connection, hinge connection and so on.

[0254] Optionally, such as Figure 20 As shown, in some embodiments, the other end of the limiting rod 330 is provided with a second mounting through hole 332, and the second rotating shaft 215 is rotatably engaged with the second mounting through hole 332. 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 adopt a zero-fit or interference fit, which improves the stopping fit accuracy between the limiting rod 330, the moving member 310, and the support member 320.

[0255] like Figure 19 as well as Figure 20 As shown, in some embodiments, the second limiting shaft 350 includes a second shaft body 351 rotatably engaged with the second mounting through hole 332, a third end shaft 352 fixed to one end of the second shaft body 351, and a fourth end shaft 353 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, and the diameters of the third end shaft 352 and 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 rotatably engages with the mating hole 323. Thus, by engaging the third end shaft 352 and the fourth end shaft 353, the fit tolerance between the limiting rod 330 and the second limiting shaft 350 can be prevented from being too long, process accuracy can be controlled, the transmission accuracy of the hinge mechanism 12 can be improved, and the stop structure can be realized.

[0256] In some embodiments, the third end shaft 352 and / or the fourth end shaft 353 are provided with a second guide portion. And / or, the end of the second mounting through hole 332 is provided with a second guide hole. In this way, it is convenient to insert the third end shaft 352 or the fourth end shaft 353 into the second mounting through hole 332 through the cooperation of the second guide portion and / or the second guide hole, so as to achieve a compression fit between the second mounting through hole 332 and the second shaft body 351.

[0257] There are several ways to implement the second inlet section, including but not limited to rounded corner structure or inverted cone corner structure.

[0258] There are several ways to implement the second inlet hole, including but not limited to rounded hole structure or tapered hole structure.

[0259] In some embodiments, the limiting rod 330 is elastic, allowing the second mounting through hole 332 to deform elastically. This facilitates the pressing of the second limiting shaft 350 into the second mounting through hole 332, increases the rotational damping of the limiting rod 330, and improves the hovering effect of the hinge mechanism 12.

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

[0261] In some embodiments, the first connecting portion 2136 is at least partially ribbed. This increases the strength of the support member 320.

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

[0263] In some embodiments, the guide portion 322 is in the form of a raised rib and extends along the length direction of the first support portion 324. This improves the strength of the support member 320.

[0264] like Figure 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 that of the first support portion 324. The second support portion 325 is provided side by side at at least one end of the first support portion 324 along a first direction, and the orthographic projections of the second support portion 325 and the first support portion 324 along a second direction overlap.

[0265] Since the material stiffness of the second support portion 325 of the aforementioned support member 320 is greater than that of the first support portion 324, the second support portion 325 and the first support portion 324 overlap in the orthographic projection along the second direction. On the one hand, the overlapping portion itself can realize the lap 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 the connection structure with other parts of the hinge mechanism 12, so that the second support portion 325 will not collapse or undergo other deformations relative to the first support portion 324 under stress during assembly or use. Furthermore, the combination of the first support portion 324 with the second support portion 325 using materials of different stiffness also helps to reduce the overall weight of the support member 320 and improve the structural reliability and thinness of the support member 320.

[0266] In the above embodiments, the second support portion 325 may include at least a first portion (not shown) and a second portion (not shown). The first portion is arranged side by side with the first support portion 324 along a first direction, and the second portion is connected to both the first portion and the first support portion 324, with the orthographic projection of the second portion along a second direction partially overlapping the first portion and the first support portion 324. By achieving the connection between the second portion and the first portion and the first support portion 324 in the second direction, the connection strength between the first portion and the second portion themselves, as well as between the second support portion 325 and the first support portion 324, is improved, preventing the second support portion 325 from collapsing or deforming 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 both the third portion and the second support portion 325, and the orthographic projection of the fourth portion along the second direction partially overlaps with both the third portion and the second support portion 325. By connecting the fourth portion to the third portion and the second support portion 325 through the overlapping portion in the second direction, the connection strength between the third and fourth portions themselves, as well as between the first support portion 324 and the second support portion 325, is improved, preventing the second support portion 325 from collapsing or deforming under stress.

[0268] In the above embodiments, 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, snap-fit ​​connection, and riveting connection. Taking the injection molding connection of the first support portion 324 and the second support portion 325 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. Injecting the first support portion 324 at the first end of the second support portion 325 can improve the connection reliability of 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 material, and this disclosure does not limit this. The use of a plastic first support portion 324 in conjunction with a second support portion 325, which has greater rigidity than a plastic material, results in the overall weight of the support member 320 consisting of the plastic first support portion 324 and the rigid second support portion 325 located at the end of the first support portion 324. Since plastic is relatively lightweight, this helps to improve the overall thinness and lightness of the support member 320.

[0271] Furthermore, the first end may be provided with an adhesive gripping structure, and the first support portion 324 covers the adhesive gripping structure. The adhesive gripping structure can improve the connection reliability of the first support portion 324 and the second support portion 325. The adhesive gripping structure can be a groove-shaped or hook-shaped structure, and this disclosure does not limit the specific structure of the adhesive 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 functions can be achieved by 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 320 is a float.

[0274] Optionally, combined Figure 19 As shown, in some embodiments, one end of the limiting rod 330 is rotatably connected to one of the moving member 310 and the second support portion 325, and the other end of the limiting 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 limiting rod 330 engages with the moving member 310 and the second support portion 325 to prevent the second support portion 325 from continuing to rotate in the unfolding direction of the hinge mechanism 12. That is,

[0275] In conjunction with any of the above embodiments, in some embodiments, the hinge mechanism 12 can be suspended at any angle within the range of 45° to 135°. Thus, the hinge mechanism 12 can hover within the range of 45° to 135°, defined as a hovering state. In the hovering state, the hinge mechanism 12 can rotate and stop instantly, facilitating the use of the foldable electronic device 10 from multiple angles and 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, where A ≥ 50°. Thus, this 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 is capable of hovering rotation so that the hinge mechanism 12 can be hovered at any angle within the range of 45° to 135°.

[0278] It should be noted that the movement states of the hinge mechanism 12 include a hovering state. In some embodiments, the support protrusion is at least able to lift the support member 320 in the hovering state of the hinge mechanism 12.

[0279] In some embodiments, the base frame assembly 100 and the connecting rod component 200 are each assigned to a third group, and at least two third groups are spaced apart along the length of the foldable electronic device 10 on the housing assembly 13. Thus, by using at least two third groups spaced apart along the length of the foldable electronic device 10 on the housing assembly 13, the folding reliability of the foldable electronic device 10 can be improved.

[0280] In some embodiments, the housing assembly 13 includes a fixed housing arranged along the length of the foldable electronic device 10, and at least two third sets are spaced apart along the length of the fixed housing on the housing assembly 13, with the base frame assembly 100 fixed to the fixed housing. Thus, the fixed housing can both protect the hinge mechanism 12 and accommodate the third sets.

[0281] In some embodiments, the connecting rod component 200 further includes a third rotating member 221, which is rotatably connected to the base frame assembly 100 and the first rotating member 212; the base frame 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, rotatably connected to the second rotating member 213, and 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 one-to-one with the third group, and are spaced apart along the length direction of the foldable electronic device 10 on the housing assembly 13, and adjacent moving members 310 are connected through the first connecting plate. Thus, by connecting adjacent moving members 310 through the first connecting plate, it is easy to splice multiple groups of moving members 310.

[0282] In some embodiments, the support member 320 is positioned along the length of the foldable electronic device 10, and at least two movable members 310 are respectively connected to the support member 320. This helps reduce the assembly steps of the support member 320 and provides better consistency in supporting the flexible display screen 11. In addition, the support member 320 can be used as a first connecting plate, enabling the splicing of multiple sets of movable members 310.

[0283] Alternatively, the foldable electronic device 10 includes a second connecting plate (not shown), at least two support members 320 corresponding one-to-one with at least two movable members 310, and are spaced apart along the length of the foldable electronic device 10 on the housing assembly 13, with adjacent support members 320 connected by the second connecting plate. In this way, connecting adjacent support members 320 by the second connecting plate facilitates the splicing of multiple sets of support members 320, making the design of the support members 320 more flexible.

[0284] like Figure 22 As shown, in some embodiments, the foldable electronic device 10 further includes a third connecting plate 360, which is spaced apart along the length of the foldable electronic device 10, and adjacent two base frame assemblies 100 are connected through the third connecting plate 360. In this way, the connection of adjacent two base frame assemblies 100 through the third connecting plate 360 ​​facilitates the modular assembly of the base frame assemblies 100 and the integration of multiple third sets.

[0285] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0286] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0287] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0288] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0289] It should be noted that when a component is described as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intervening component. Furthermore, when a component is considered to be "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, snap-fitting, integral molding, welding, etc., which are achievable in conventional technologies and will not be elaborated upon here.

[0290] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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 are merely illustrative of several implementation methods of this disclosure, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this disclosure, and these modifications and improvements all fall within the protection scope of this disclosure.

Claims

1. A foldable electronic device, characterized in that, include: A hinge mechanism includes a base frame assembly, a support assembly, and a connecting rod assembly; the connecting rod assembly and the support assembly are each in at least two sets, and are respectively disposed on both sides of the base frame assembly; the connecting rod assembly includes 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 housing assembly includes at least two housing bodies, two adjacent housing bodies are respectively disposed on both sides of the base frame assembly, and one housing body is fixedly connected to one of the support components, and the other housing body is fixedly connected to the other support component; A flexible display screen, at least partially covering the housing assembly and the hinge mechanism; as well as; A flexible transmission element passes through the hinge mechanism such that both ends of the flexible transmission element are respectively disposed on both sides of the base frame assembly; When the hinge mechanism is in the deployed state, at least two sets of the support components and at least two sets of the connecting rod components cooperate with the base frame component to form a support structure that supports 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 frame assembly along the thickness direction of the base frame assembly, so that at least two sets of the support components and at least two sets of the connecting rod components form a receiving space with the base frame assembly, and the flexible display screen is bent within the receiving space.

2. The foldable electronic device according to claim 1, characterized in that, At least two sets of the support components are symmetrically arranged on both sides of the base frame assembly; and / or, at least two sets of the connecting rod components are symmetrically arranged on both sides of the base frame assembly. And / or, on the cross-section of the base frame assembly in the thickness direction, when the hinge mechanism is in the folded state, the width of the accommodating space gradually increases from the base frame 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, The other end of the first rotating member is provided with a first hinge portion, and one end of the second rotating member is provided with a second hinge portion, the second hinge portion being hinged to the first hinge 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 hinge portion is hinged to the second hinge portion through the first rotating shaft; And / or, at least a portion of the second hinge is embedded in the first hinge.

5. The foldable electronic device according to claim 4, characterized in that, On the cross-section of the base frame assembly in the thickness direction, the width of the accommodating space gradually increases from the base frame 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; And / or, the first hinge portion includes at least two first rotating bodies spaced apart, with a first notch formed between adjacent two first rotating bodies, and the first rotating body having a second through hole; the second hinge portion includes at least two second rotating bodies spaced apart, with a second notch formed between adjacent two second rotating bodies, and the second rotating body having a third through hole, wherein one of the second rotating bodies is inserted into the first notch, and one of the first rotating bodies is inserted into the second notch, such that the second through hole and the third through hole are coaxially arranged, and the first rotating shaft passes 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 further 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 which is rotatably connected to the first hinge portion and the second hinge portion via the first rotating shaft.

7. The foldable electronic device according to claim 6, characterized in that, The other end of the transmission component includes two first rotating parts spaced apart. Each first rotating part has a first through hole. The first rotating body and the second rotating body are disposed between the two first rotating parts. The first through hole, the second through hole, and the third through hole are coaxially arranged. The first rotating shaft passes 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 the deployed state, the support component cooperates with the first support surface to form a support structure; When the hinge mechanism is in the folded state, the support assembly and the connecting rod are arranged at an angle relative to the first support surface to form the receiving 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 frame assembly, so that the support assembly is spaced apart from the first support surface.

9. The foldable electronic device according to claim 1, characterized in that, The connecting rod component further includes a third rotating member, which is rotatably connected to the base frame assembly and the first rotating member; the base frame assembly includes a first supporting surface, the supporting assembly includes a movable member and a supporting member, the movable member is rotatably connected to the supporting member, the movable member is rotatably connected to the second rotating member, and slidably connected to the third rotating member; When the hinge mechanism is in the unfolded state, the support member cooperates with the first support surface to form a support structure; when the hinge mechanism is in the folded state, the support member is set 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 on 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 includes a stop surface, which abuts against the support member when the hinge mechanism is in a folded state.

12. The foldable electronic device according to claim 9, characterized in that, The first rotating member is parallel to the rotation axis of the base frame assembly, and the third rotating member is parallel to but not on the same axis as the rotation axis of the base frame assembly. And / or, the connecting rod component includes a second rotating shaft, the other end of the second rotating member includes a third hinge portion, the third hinge portion includes at least two third rotating bodies spaced apart, a third notch is formed between adjacent two third rotating bodies, and the third rotating body is provided with a fourth through hole; the moving member includes at least two mounting bodies spaced apart, a fourth notch is formed between adjacent two mounting bodies, the mounting body is 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 and the rotating groove are coaxially arranged, 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 includes: A transmission component, one end of which is rotatably connected to the third rotating component, and the other end of which is rotatably connected to the first rotating component and the second rotating component.

14. The foldable electronic device according to claim 13, characterized in that, The rotation axes of the transmission component and the third rotating component, the rotation axis of the rotating component and the moving component, and the rotation axis of the third rotating component and the base frame 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 spaced apart, a portion of the first rotating part being disposed between the two first rotating parts and rotatably connected to the two first rotating parts; and / or, one end of the transmission member is provided with a second rotating part, the second rotating part being hinged to the third rotating part.

16. The foldable electronic device according to claim 15, characterized in that, The connecting rod component includes: The first rotating shaft has a first through hole in the first rotating part and a second through hole coaxially arranged with the first through hole. The first rotating shaft passes 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 component is rotatably connected to the base frame assembly and the transmission component, and the third rotating component is slidably connected to the moving component.

18. The foldable electronic device according to claim 17, characterized in that, The third rotating component includes: The third rotating part is rotatably connected to the base frame assembly; The second guide portion, wherein the moving member is provided with a groove that slides in cooperation with the second guide portion.

19. The foldable electronic device according to claim 18, characterized in that, The third rotating component further includes a fourth rotating part, which is located between the second guide part and the third rotating part, and is rotatably connected to the transmission component.

20. The foldable electronic device according to claim 18, characterized in that, The connecting rod component includes a third rotating shaft mounted on the base frame assembly, and the third rotating part includes a first rotating hole that rotatably engages 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 component.

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 toward a side opposite to the third rotating portion, the guide body being slidably engaged with the groove.

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

23. The foldable electronic device according to claim 9, characterized in that, The first rotating member has a first rotation axis with the base frame assembly, the first rotating member has a second rotation axis with the second rotating member, and the second rotating member has a third rotation axis with the moving 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 movable component is provided with a first arc-shaped guide portion, and the supporting component is provided with a second arc-shaped guide portion. The first arc-shaped guide portion and the second arc-shaped guide portion are guided and connected to each other so that the movable component and the supporting component are rotatably connected.

25. The foldable electronic device according to claim 24, characterized in that, The first arc-shaped guide portion and the second arc-shaped guide portion are provided with a second arc-shaped groove on one side and a second arc-shaped body on the other side, and the second arc-shaped body and the second arc-shaped groove are guided and matched.

26. The foldable electronic device according to claim 25, characterized in that, The movable component is provided with a clearance surface. On the cross-sectional surface of the base frame assembly in the thickness direction, the portion of the clearance surface closer to the side wall of the base frame assembly is further away from the first support surface. When the hinge mechanism is in the unfolded state, a portion of the support member is disposed away from the clearance surface; when the hinge mechanism is in the folded state, the support member is disposed close to or near the clearance surface.

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

28. The foldable electronic device according to claim 9, characterized in that, The third rotating component 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 includes a damping component, which engages with the third rotating member with damping to enable the third rotating member to rotate while suspended.

30. The foldable electronic device according to claim 29, characterized in that, The third rotating component includes a third rotating shaft and a mating part. The damping assembly includes an elastic element, a first damping element, and a mounting part fixedly connected to the base frame assembly. One end of the third rotating shaft is fixed to the mounting part, and the other end is fixed to the base frame assembly. The elastic element and the first damping element are sleeved on the third rotating shaft. The elastic element is disposed between the mounting part and the first damping element. One of the first damping element and the mating part is provided with a pressing protrusion, and the other is provided with a bearing surface that abuts against the pressing protrusion and a second groove that accommodates the pressing protrusion. When the third rotating component rotates, the pressing protrusion presses against the bearing surface to make the third rotating component rotate with damping. 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 frame assembly and rotates in the direction that drives the support member toward the unfolded state; or, 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 frame assembly and rotates in the direction that drives the support member toward the folded state.

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

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

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

34. The foldable electronic device according to claim 33, characterized in that, The synchronization component includes at least one synchronization gear, and the third rotating member includes a gear body that meshes with the at least one synchronization gear.

35. The foldable electronic device according to claim 9, characterized in that, The support member includes: First support section; The second support portion has a material stiffness greater than that of the first support portion. The second support portion is provided side by side at at least one end of the first support portion along the first direction, and the orthographic projection portions of the second support portion and the first support portion along the second direction overlap.

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

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

38. The foldable electronic device according to claim 35, characterized in that, The first support portion and the second support portion are connected by at least one of the following methods: injection molding connection, bolt connection, snap-fit ​​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 support part, and the other end of which is movably connected to the other of the moving member and the second support part; When the hinge mechanism is in the unfolded state, the limiting rod engages with the moving member and the second support to prevent the second support 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 support 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, and the other of the moving part and the second support 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 engages with the moving part and the second support part to stop.

42. The foldable electronic device according to claim 41, characterized in that, The limiting groove is disposed on the movable member, and the second support part is rotatably connected to one end of the limiting rod; the movable member is provided with two mounting bodies that are spaced apart to form a relief groove that avoids the other end of the limiting rod, and the limiting groove is disposed on at least one of the mounting bodies and communicates with the relief 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, and the first limiting shaft is sleeved with the first mounting through hole. 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 that rotatably engages with the first mounting through hole, a first end shaft fixed to one end of the first shaft body, and a second end shaft fixed to the other end of the first shaft body. The diameter of the first shaft body is greater than or equal to the diameter of the first mounting through hole, and the diameters of the first end shaft and the second end shaft are greater than the diameter of the first mounting through hole. At least one of the first end shaft and the second end shaft is slidably engaged 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 are provided with a first guide portion; and / or, the end of the first mounting through hole is provided with a first guide hole.

46. ​​The foldable electronic device according to claim 43 or the present invention, characterized in that, At least a portion of the limiting rod is elastic, allowing the first mounting through hole to deform elastically.

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 part is provided with a mating hole. A portion of the second limiting shaft is inserted into the mating hole and rotates with the mating hole.

48. The foldable electronic device according to claim 47, characterized in that, One end of the limiting rod is provided with a second mounting through hole, the second limiting shaft is rotatably engaged 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 that rotatably engages 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, and the diameters of the third end shaft and the fourth end shaft are greater than the diameter of the second mounting through hole. At least one of the third end shaft and the fourth end shaft rotatably engages with the mating hole.

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

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

52. The foldable electronic device according to claim 41, characterized in that, The second support part is provided with a first connecting part, which is rotatably connected to the limiting rod.

53. The foldable electronic device according to claim 52, characterized in that, The first connecting portion is at least partially convex.

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

55. The foldable electronic device according to claim 54, characterized in that, The guide portion is rib-shaped and extends along the length 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-shaped groove. The first rotating member includes a first guide portion that rotatably cooperates with the first arc-shaped 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; Linkage components.

58. The foldable electronic device according to claim 1, characterized in that, The base frame assembly and the connecting rod component are each assigned to a third group, and at least two of the third groups are spaced apart along the length of the foldable electronic device on the housing assembly.

59. The foldable electronic device according to claim 58, characterized in that, The housing assembly includes a fixed shell, the length direction of which is arranged along the length direction of the foldable electronic device, at least two sets of the third set are spaced apart along the length direction of the fixed shell on the housing assembly, 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 further includes a third rotating member, which is rotatably connected to the base frame assembly and the first rotating member; the base frame assembly includes a first supporting surface, the supporting assembly includes a movable member and a supporting member, the movable member is rotatably connected to the supporting member, the movable member is rotatably connected to the second rotating member, and slidably connected to the third rotating member; the foldable electronic device includes a first connecting plate, at least two of the movable members correspond one-to-one with the third group, and are spaced apart along the length direction of the foldable electronic device on the housing assembly, and adjacent two movable members are connected through the first connecting plate.

61. The foldable electronic device according to claim 60, characterized in that, The length direction of the support member is set along the length direction of the foldable electronic device, and at least two of the movable members are respectively connected to the support member; Alternatively, the foldable electronic device may include a second connecting plate, at least two of the support members corresponding one-to-one with at least two movable members, and spaced apart on the housing assembly along the length of the foldable electronic device, with adjacent support members 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 includes a third connecting plate, which is spaced apart along the length of the foldable electronic device, and two adjacent base frame components are connected through the third connecting plate.

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