CN220551373U

CN220551373U - Folding mechanism and foldable electronic device

Info

Publication number: CN220551373U
Application number: CN202322129304.5U
Authority: CN
Inventors: 丁飞
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2023-08-08
Filing date: 2023-08-08
Publication date: 2024-03-01
Anticipated expiration: 2033-08-08

Abstract

The utility model discloses a folding mechanism and foldable electronic equipment. The folding mechanism includes a base assembly, a support assembly, and a linkage member. The support assembly comprises a moving piece and a support piece, and the moving piece is rotationally connected with the support piece. The link member includes a first link assembly and a second link assembly. The first connecting rod assembly comprises a transmission piece, a first rotating piece and a second rotating piece. The transmission piece is rotationally connected with the second connecting rod assembly. The first rotating piece is rotationally connected with the base frame assembly, the first rotating piece is rotationally connected with the second rotating piece and the transmission piece, the second rotating piece is rotationally connected with the moving piece, the second rotating piece is provided with a supporting bulge, and the supporting bulge is arranged close to the other end of the first rotating piece. The folding mechanism is used for supporting the supporting piece in a folding or unfolding process, so that the supporting piece and the part of the first rotating piece form a first supporting surface. The folding mechanism improves the service life of the foldable electronic device.

Description

Folding mechanism and foldable electronic device

Technical Field

The disclosure relates to the technical field of electronic equipment, and in particular relates to a folding mechanism and foldable electronic equipment.

Background

Electronic devices such as mobile phones and tablet computers have become indispensable technological products in the life, study and entertainment processes of people. At present, a foldable electronic device using a flexible display screen needs to use a mechanical folding mechanism to fold the flexible display screen so as to ensure that the flexible display screen does not fail in the normal use process of the flexible display screen and the normal bending of the flexible display screen is not affected. The flexible display screen of the foldable electronic equipment can be conveniently carried after being folded, and the flexible display screen has a larger display area after being unfolded, so that the foldable electronic equipment is more and more favored by consumers.

In the related art, a foldable electronic device generally uses a folding mechanism to realize unfolding or folding in half of a flexible display screen. However, due to structural defects, the conventional folding mechanism is easy to support the flexible display screen in a moving state, so that pits are generated on the flexible display screen.

Disclosure of Invention

The present disclosure provides a folding mechanism and a foldable electronic device. The folding mechanism can reliably support the flexible display screen, and pits are not easy to generate, so that the service life of the foldable electronic equipment is prolonged.

The technical scheme is as follows:

according to a first aspect of embodiments of the present disclosure, a folding mechanism is provided that includes a base assembly, a support assembly, and a linkage member. The support assembly comprises a moving piece and a support piece, and the moving piece is rotationally connected with the support piece. The connecting rod component comprises a first connecting rod component and a second connecting rod component, the second connecting rod component is rotationally connected with the base frame component, and the second connecting rod component is in sliding connection with the supporting piece.

The first connecting rod assembly comprises a transmission piece, a first rotating piece and a second rotating piece. One end of the transmission piece is rotationally connected with the second connecting rod assembly. One end of the first rotating member is rotationally connected with the base frame assembly, the other end of the first rotating member is rotationally connected with one end of the second rotating member and the other end of the transmission member, the other end of the second rotating member is rotationally connected with the moving member, the second rotating member is provided with a supporting bulge, and the supporting bulge is arranged close to the other end of the first rotating member. The folding mechanism is used for supporting the supporting piece in a folding or unfolding process, so that the supporting piece and the part of the first rotating piece form a first supporting surface.

The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:

the first connecting rod assembly is rotationally connected with the base frame assembly, and the first connecting rod assembly is rotationally connected with the supporting assembly. The first connecting rod assembly is rotationally connected with the second connecting rod assembly. The second connecting rod assembly is rotationally connected with the base frame assembly, and the second connecting rod assembly is in sliding connection with the supporting assembly. When the first rotating piece and the second connecting rod assembly rotate along the base frame assembly, the moving piece can be driven to rotate through the second connecting rod assembly, and the first rotating piece and the second rotating piece are synchronously driven to rotate through the transmission piece, so that the supporting piece can be switched between an unfolding state and a folding state along with the folding mechanism. And the supporting bulge jacks up the supporting piece in the folding or unfolding process of the folding mechanism, so that the supporting piece and part of the first rotating piece form a first supporting surface. Therefore, the folding mechanism can face the support of the flexible display screen through the first support in a moving state, and pits generated in the flexible display screen can be avoided.

The technical scheme of the present disclosure is further described below:

in one embodiment, the first rotating member is provided with a first bearing surface, and the supporting member is provided with a second bearing surface;

when the folding mechanism is in an unfolding state, the supporting protrusions are arranged to avoid the supporting pieces, and the first bearing surface and the second bearing surface are matched to form a second supporting surface;

when the folding mechanism is switched from the unfolding state to the folding state, or the folding mechanism is switched from the folding state to the unfolding state, the supporting protrusion jacks up the supporting piece, so that the first bearing surface and the second bearing surface form a first supporting surface.

In one embodiment, one end of the second rotating member is provided with a avoiding concave part, and the supporting member is provided with a guiding part;

when the folding mechanism is in an unfolding state, the supporting protrusions are arranged to avoid the supporting pieces, and part of the guiding part is embedded into the avoiding concave part so that the first bearing surface is adjacent to the second bearing surface to form a second supporting surface;

when the folding mechanism is switched from the unfolding state to the folding state, or the folding mechanism is switched from the folding state to the unfolding state, the supporting protrusion jacks up the guide part, so that the first bearing surface and the second bearing surface form a first supporting surface.

In one embodiment, one end of the second rotating member is provided with a connecting portion rotatably connected to the other end of the first rotating member, and the avoidance recess is provided between the connecting portion and the support protrusion.

In one embodiment, one end of the first rotating member includes a first plate body and a first guiding portion, the base frame assembly is provided with a first arc-shaped slot, the first guiding portion is in running fit with the first arc-shaped slot, and the first bearing surface is disposed on an outer side surface of the first plate body.

In one embodiment, the pedestal assembly includes a third load bearing surface;

when the folding mechanism is in an unfolding state, the first bearing surface, the second bearing surface and the third bearing surface are matched to form a first supporting surface;

when the folding mechanism is in a folding state, the first bearing surface is arranged at an included angle relative to the third bearing surface, so that an accommodating space is formed.

In one embodiment, the support assembly further comprises a limiting rod, one end of the limiting rod is rotatably connected with one of the moving piece and the support piece, and the other end of the limiting rod is movably connected with the other one of the moving piece and the support piece; when the folding mechanism is in the unfolding state, the limiting rod is in stop fit with the moving piece and the supporting piece so as to limit the supporting piece to continue to rotate towards the unfolding direction of the folding mechanism.

In one embodiment, the angle between the second rotating member and the first supporting surface is greater than 30 °.

In one embodiment, the support assembly further comprises a first limiting shaft, the other end of the limiting rod is connected with the first limiting shaft, the other one of the moving part and the support part is provided with a limiting groove, and a part of the first limiting shaft is inserted into the limiting groove and is movably matched with the limiting groove. When the folding mechanism is in an unfolding state, the first limiting shaft abuts against the end part of the limiting groove, so that the limiting rod is in stop fit with the moving piece and the supporting piece.

In one embodiment, the limiting groove is formed in the moving piece, and the supporting piece is rotatably connected with one end of the limiting rod. The moving member is provided with two first installation bodies which are arranged at intervals to form an avoidance groove at the other end of the avoidance limiting rod, and the limiting groove is formed in at least one first installation body and communicated with the avoidance groove.

In one embodiment, the other end of the limiting rod is provided with a first mounting through hole, the first limiting shaft is in sleeve joint fit with the first mounting through hole, and the diameter of the first limiting shaft is larger than or equal to the aperture of the first mounting through hole.

In one embodiment, the first limiting shaft comprises a first shaft body in running fit with the first mounting through hole, a first end shaft fixedly arranged at one end of the first shaft body, and a second end shaft fixedly arranged at the other end of the first shaft body, the diameter of the first shaft body is larger than or equal to the aperture of the first mounting through hole, the diameter of the first end shaft and the diameter of the second end shaft are larger than the aperture of the first mounting through hole, and at least one of the first end shaft and the second end shaft is in sliding fit with the limiting groove.

In one embodiment, the first end shaft and/or the second end shaft is provided with a first lead-in. And/or the end of the first mounting through hole is provided with a first lead-in hole.

In one embodiment, at least a portion of the stop lever is resilient to enable elastic deformation of the first mounting aperture.

In one embodiment, the support assembly further comprises a second limiting shaft, one end of the limiting rod is connected with the second limiting shaft, the support member is provided with a matching hole, and a part of the second limiting shaft is inserted into the matching hole and is in running fit with the matching hole.

In one embodiment, one end of the limiting rod is provided with a second installation through hole, the second limiting shaft is in running fit with the second installation through hole, and the diameter of the second limiting shaft is larger than or equal to the aperture of the second installation through hole.

In one embodiment, the second limiting shaft comprises a second shaft body in running fit with the second mounting through hole, a third end shaft fixedly arranged at one end of the second shaft body and a fourth end shaft fixedly arranged at the other end of the second shaft body, the diameter of the second shaft body is larger than or equal to the diameter of the second mounting through hole, the diameter of the third end shaft and the diameter of the fourth end shaft are larger than the diameter of the second mounting through hole, and at least one of the third end shaft and the fourth end shaft is in running fit with the matching hole.

In one embodiment, the third end shaft and/or the fourth end shaft is provided with a second lead-in; and/or the end of the second mounting through hole is provided with a second guide hole.

In one embodiment, at least a portion of the stop lever is resilient to enable elastic deformation of the second mounting aperture.

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

a base assembly;

a support assembly;

connecting rod component

In one embodiment, the folding mechanism is hoverable at any angle in the range of 45-135.

In one embodiment, the folding mechanism further comprises a damping assembly, wherein at least some of the components of the damping assembly have material parameters that satisfy at least one of: 550HV is more than or equal to the surface hardness is more than or equal to 450HV, the yield strength is more than or equal to 1600MPa, and the tensile strength is more than or equal to 1700MPa.

In one embodiment, a damping assembly includes: a cam, the material parameters of the cam satisfying at least one of: 550HV is more than or equal to the surface hardness is more than or equal to 450HV, the yield strength is more than or equal to 1600MPa, and the tensile strength is more than or equal to 1700MPa.

According to a second aspect of the embodiments of the present disclosure, there is further provided a foldable electronic device, including a flexible display screen and the folding mechanism in any of the above embodiments, where the flexible display screen is folded or unfolded by the folding mechanism.

the folding mechanism in any embodiment is applied to the foldable electronic equipment, so that pits cannot be easily generated on the flexible display screen, and the service life of the foldable electronic equipment is prolonged.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate and explain the exemplary embodiments of the disclosure and their description are given by way of illustration and not of limitation.

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 is a schematic structural view of a foldable electronic device (flexible display screen in unfolded state) in an embodiment.

Fig. 2 is a schematic view of the foldable electronic device shown in fig. 1 in a folded-in-half state.

Fig. 3 is a schematic cross-sectional view of A-A of the foldable electronic device shown in fig. 2.

Fig. 4 is a schematic diagram of the folding mechanism shown in fig. 3.

Fig. 5 is a schematic structural view of the folding mechanism shown in an embodiment (the folding mechanism is in an unfolded state).

Fig. 6 is a schematic view of the folding mechanism shown in fig. 5 in a folded state.

Fig. 7 is a schematic structural view of the folding mechanism shown in fig. 5 at another view angle.

Fig. 8 is an exploded schematic view of the folding mechanism shown in fig. 5.

Fig. 9 is a partially enlarged schematic view of the region a shown in fig. 8.

Fig. 10 is a schematic cross-sectional view of the folding mechanism shown in fig. 5 in the direction of the first link assembly.

Fig. 11 is a schematic cross-sectional view of the folding mechanism shown in fig. 6 in the direction of the first link assembly.

Fig. 12 is a schematic cross-sectional view of the folding mechanism shown in fig. 5 in the direction of the second linkage assembly.

Fig. 13 is a schematic cross-sectional view of the folding mechanism shown in fig. 6 in the direction of the second link assembly.

Fig. 14 is a schematic view showing the engagement of the engaging portion with the cam in an embodiment.

Fig. 15 is a schematic structural view of a folding mechanism shown in another embodiment (the folding mechanism is in a moving state).

Fig. 16 is an enlarged schematic view of region B shown in fig. 15.

Fig. 17 is a schematic view showing a structure in which the folding mechanism shown in fig. 15 is in an unfolded state.

Fig. 18 is an enlarged schematic view of region C shown in fig. 17.

Fig. 19 is an enlarged schematic view of a part of the folding mechanism shown in fig. 17.

Fig. 20 is an exploded schematic view of the stop lever, the first stop shaft and the second stop shaft shown in fig. 19.

Reference numerals illustrate:

10. a foldable electronic device; 11. a flexible display screen; 12. a folding mechanism; 13. a first housing; 14. a second housing; 100. a base assembly; 110. a first arc-shaped groove; 120. a support plate; 121. a third bearing surface; 130. a cover plate; 131. a first groove; 200. a link member; 210. a first link assembly; 210a, a first bearing surface; 211. a transmission member; 2111. a first rotating part; 201. a first through hole; 2112. a second rotating part; 212. a first rotating member; 2121. a first guide part; 2122. a first hinge part; 202. a first rotating body; 203. a first notch; 204. a second through hole; 2123. a plate body; 213. a second rotating member; 2131. a rotation stopping surface; 2132. a second hinge part; 205. a second rotating body; 206. a second notch; 207. a third through hole; 2133. a third hinge; 208. a third rotor; 209. a third notch; 2010. a fourth through hole; 2134. a support part; 2135. avoiding the concave part; 2136. a connection part; 214. a first rotating shaft; 215. a second rotating shaft; 220. a second link assembly; 221. a third rotating member; 2211. a third rotating part; 2001. a first rotation hole; 2212. a second guide part; 2002. a guide body; 2213. a fourth rotating part; 2214. a receiving recess; 2215. a support body; 2216. an arc body; 222. a third rotating shaft; 223. a fourth rotating shaft; 224. a mating portion; 2241. a pressure bearing surface; 2242. a second groove; 300. a support assembly; 310. a moving member; 301. a chute; 311. a first mounting body; 3111. a rotating groove; 312. a fourth notch; 313. a first arc-shaped guide part; 304. a second arc-shaped groove; 314. an avoidance surface; 315. a limit groove; 316. a first mounting body; 317. an avoidance groove; 320. a support; 302. a second bearing surface; 303. an accommodation space; 321. a second arc-shaped guide part; 305. a second arc body; 322. a guide part; 323. a mating hole; 330. a limit rod; 331. a first mounting through hole; 332. a second mounting through hole; 340. a first limiting shaft; 341. a first shaft body; 342. a first end shaft; 343. a second end shaft; 350. the second limiting shaft; 351. a second shaft body; 352. a third end shaft; 353. a fourth end shaft; 400. a synchronization component; 410. a first gear; 420. a second gear; 430. a drive gear set; 500. a damping assembly; 510. a mounting member; 520. an elastic member; 530. a cam; 531. the pressing protrusion.

Detailed Description

For the purposes of promoting an understanding of the principles and advantages of the disclosure, reference will now be made to the drawings and specific language will be used to describe the same. It should be understood that the detailed description is presented herein only to illustrate the present disclosure and not to limit the scope of the disclosure.

Unless defined otherwise, 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 in the description of the disclosure herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure.

For a better understanding of the folding mechanism of the present disclosure, a description is given of a foldable electronic device to which the folding mechanism is applied.

As shown in fig. 1 to 4, a foldable electronic device 10 includes a flexible display screen 11 and the folding mechanism 12 described above. Wherein the folding mechanism 12 includes a base assembly 100, a linkage member 200, and a support assembly 300. The linkage member 200 includes a first linkage assembly 210 and a second linkage assembly 220. The first link assembly 210 is rotatably coupled to the base assembly 100 and the first link assembly 210 is rotatably coupled to the support assembly 300. The first link assembly 210 and the second link assembly 220 are rotatably coupled. The second link assembly 220 is rotatably coupled to the base assembly 100 and the second link assembly 220 is slidably coupled to the support assembly 300. The connecting rod members 200 and the supporting members 300 are respectively provided with at least two groups, and are respectively arranged at two sides of the base frame assembly 100 in a one-to-one correspondence manner. At least a portion of the flexible display 11 is disposed over two sets of support assemblies 300.

When the foldable electronic device 10 is switched from the folded state to the open state, the link assemblies at both sides of the base frame assembly 100 rotate around the base frame assembly 100, so that when the first link assembly 210 and the second link assembly 220 rotate along the base frame assembly 100, the support assembly 300 can be driven to rotate by the first link assembly 210, so that the support assembly 300 and the second link assembly 220 slide, at least part of the support assembly 300 is opened towards the support state, and the flexible display screen 11 covering the two sets of support assemblies 300 is also opened towards the open state. When the foldable electronic device 10 is switched from an open state to a folded state, the connecting rod assemblies at two sides of the base frame assembly 100 rotate around the base frame assembly 100, so that when the first connecting rod assembly 210 and the second connecting rod assembly 220 rotate along the base frame assembly 100, the supporting assembly 300 can be driven to rotate by the first connecting rod assembly 210, so that the supporting assembly 300 and the second connecting rod assembly 220 slide, at least part of the supporting assembly 300 rotates to an avoidance state, and further the flexible display screen 11 which is arranged to cover the two groups of the supporting assemblies 300 is folded in half towards the folded state.

As shown in fig. 3, in some embodiments, the foldable electronic device 10 further includes a first housing 13 and a second housing 14, each rotatably coupled to the base assembly 100. The flexible display screen 11 covers the first shell 13 and the second shell 14 to form a protection space, at least part of the folding mechanism 12 is arranged in the protection space, and the connecting rod component 200 and the supporting component 300 are respectively two groups and are respectively arranged at two sides of the base frame component 100 in a one-to-one correspondence manner; when the first housing 13 and the second housing 14 are in the open state, portions of the two support assemblies 300 are used to support the flexible display screen 11 so that the flexible display screen 11 is in the unfolded state. When the first shell 13 and the second shell 14 are in a folded state, when the flexible display screen 11 is in an avoidance state, at least part of the two support assemblies 300 are oppositely arranged to form an accommodating space 303, and part of the flexible display screen 11 can be bent in the accommodating space 303, so that bending stress to which the flexible display screen 11 is subjected can be reduced, and the service life of the flexible display screen 11 is prolonged.

It should be noted that the base assembly may be rotatably coupled to the first housing and the second housing in a variety of ways, including but not limited to, a hinge, a pivot connection, a swing link, etc.

In some embodiments, the outer side walls of the base assembly can be used to form decorative side walls of the foldable electronic device to enhance the aesthetic appeal of the foldable electronic device.

In some embodiments, at least a portion of the link member is rotatably disposed within the protected space. And/or at least part of the supporting component is movably arranged in the protective space. In this way, the link member and/or the support assembly may be protected with a guard space. And meanwhile, the first shell, the second shell and the flexible display screen are utilized for shielding, so that the foldable electronic equipment is more attractive.

In some embodiments, at least one of the base assembly, the support assembly, and the link member is formed of a steel material having a tensile strength in the range of 1400MPa to 1900MPa. Further, folding durability of the folding mechanism can be improved.

Optionally, the above range also includes 1500MPa to 1800MPa, 1600MPa to 1700MPa, 1600MPa to 1800MPa, and so on.

As shown in fig. 4 to 6, in some embodiments, at least one first link assembly 210 is disposed on two sides of the base assembly 100, and the second link assemblies 220 are disposed side by side on at least one side of the first link assembly 210, and the first link assembly 210 is used to move the second link assemblies 220 and the supporting assemblies 300 located on at least one side of the first link assembly 210. In this way, two sets of link members 200 and the supporting assembly 300 can be disposed on one set of folding mechanism 12 to drive the flexible display screen 11 to fold or unfold.

In other embodiments, the base assembly, the support assembly, and the link member are each one and are a set of folding mechanisms. The foldable equipment comprises two groups of folding mechanisms, and a base frame assembly between the two groups of folding mechanisms is fixedly connected. Therefore, the connecting rod component and the supporting component are respectively at least two groups by utilizing the fixed connection of the base frame component, are respectively arranged on two sides of the base frame component in a one-to-one correspondence manner, and in the folding process of the first shell and the second shell, the folding side wall is formed by utilizing the base frame component which is fixedly connected together so as to improve the protective performance of the foldable electronic equipment. In addition, the base assembly can be utilized to form a decorative sidewall of the foldable electronic device to enhance the aesthetic appeal of the foldable electronic device.

In addition, the two groups of connecting rod components and the supporting components can be respectively arranged at two sides of the base frame component in a one-to-one correspondence manner by utilizing the fixed connection of the base frame components of the two groups of folding mechanisms.

On the basis of any of the above embodiments, as shown in fig. 4, in some embodiments, the first link assembly 210 is parallel to and non-coaxial with the rotational axis of the base assembly 100 and the second link assembly 220 is parallel to and non-coaxial with the rotational axis of the base assembly 100. In this way, the first link assembly 210 and the second link assembly 220 respectively form a link mechanism with the base frame assembly 100, and the first link assembly 210 is rotationally connected with the second link assembly 220, so that in the process of synchronously rotating the first link assembly 210 and the second link assembly 220, a driving force for driving the support assembly 300 to slide relative to the second link assembly 220 can be generated.

Based on any of the above embodiments, as shown in fig. 5, 6 and 10, in some embodiments, the base assembly 100 includes a third bearing surface 121, and the support assembly 300 includes a moving member 310 and a support member 320. The moving member 310 is rotatably coupled to the supporting member 320, and the moving member 310 is rotatably coupled to the first link assembly 210 and slidably coupled to the second link assembly 220. When the folding mechanism 12 is in the unfolded state, the supporting member 320 cooperates with the third bearing surface 121 to form a supporting structure. When the folding mechanism 12 is in the folded state, the supporting member 320 is disposed at an angle with respect to the third bearing surface 121, so as to form the accommodating space 303. In this way, in the process of switching the foldable electronic device 10 from the folded state to the unfolded state, the folding mechanism 12 is also switched from the folded state to the unfolded state, and the link assemblies at both sides of the base frame assembly 100 rotate around the base frame assembly 100, so that when the first link assembly 210 and the second link assembly 220 rotate along the base frame assembly 100, the moving member 310 can be driven to rotate by the second link assembly 220, and the first link assembly 210 drives the moving member 310 to slide along the length direction of the second link assembly 220 and be disposed close to the base frame assembly 100. At this time, the supporting member 320 is opened to the supporting state in the process of moving the supporting member 320 along with the moving member 310 until the supporting member 320 and the third bearing surface 121 cooperate to form a supporting structure, so as to support the flexible display screen 11 by using the supporting structure. When the foldable electronic device 10 is switched from the open state to the folded state, the folding mechanism 12 is also switched from the unfolded state to the folded state, so that when the first link assembly 210 and the second link assembly 220 rotate along the base assembly 100, the moving member 310 can be driven to rotate by the second link assembly 220, and the first link assembly 210 drives the moving member 310 to slide along the length direction of the second link assembly 220 and be disposed away from the base assembly 100. At this time, in the process that the supporting member 320 moves along with the moving member 310, the supporting member 320 is disposed at an included angle with respect to the third bearing surface 121, so as to form the accommodating space 303 until the foldable electronic device 10 is in a folded state, so that a portion of the flexible display screen 11 can be bent in the accommodating space 303, which can reduce the bending stress suffered by the flexible display screen 11, and improve the service life of the flexible display screen 11.

The term "disposed at an included angle" includes an acute angle, a right angle, and an obtuse angle, but does not include a flat angle.

Based on the above embodiments, as shown in fig. 5, 6 and 10, in some embodiments, the first link assembly 210 includes at least a first bearing surface 210a, and the support 320 includes a second bearing surface 302. When the folding mechanism 12 is in the unfolded state, the first bearing surface 210a and the third bearing surface 121 and the second bearing surface 302 are respectively located on the same supporting surface. The first link assembly 210 includes an abutment surface that abuts the support 320 when the folding mechanism 12 is in the folded state. In this way, in the process of switching the foldable electronic device 10 from the folded state to the unfolded state, the folding mechanism 12 is also switched from the folded state to the unfolded state, and the link assemblies at both sides of the base frame assembly 100 rotate around the base frame assembly 100, so that when the first link assembly 210 and the second link assembly 220 rotate along the base frame assembly 100, the moving member 310 can be driven to rotate by the second link assembly 220, and the first link assembly 210 drives the moving member 310 to slide along the length direction of the second link assembly 220 and be disposed close to the base frame assembly 100. At this time, the supporting member 320 is opened to a supporting state in the process of moving the supporting member 320 along with the moving member 310 until the first bearing surface 210a and the third bearing surface 121 and the second bearing surface 302 are respectively located on the same supporting surface to support the flexible display screen 11. When the foldable electronic device 10 is switched from the open state to the folded state, the folding mechanism 12 is also switched from the unfolded state to the folded state, so that when the first link assembly 210 and the second link assembly 220 rotate along the base assembly 100, the moving member 310 can be driven to rotate by the second link assembly 220, and the first link assembly 210 drives the moving member 310 to slide along the length direction of the second link assembly 220 and be disposed away from the base assembly 100. At this time, in the process of moving the supporting member 320 along with the moving member 310, the supporting member 320 is disposed at an angle with respect to the third bearing surface 121, so as to form the accommodating space 303, and the abutment surface is utilized.

In some embodiments, the first link assembly 210 includes a transmission 211 and at least two rotational members. One end of the transmission member 211 is rotatably coupled to the second link assembly 220. The various rotational members are rotatably coupled to one another, one of which is rotatably coupled to the other end of the transmission member 211 and to the base assembly 100, and the other of which is rotatably coupled to the moving member 310. In this way, one of the rotating members is rotationally connected with the base assembly 100 and is rotationally connected with the second link assembly 220 synchronously through the transmission member 211, so that the rotating member can drive the rotating member rotationally connected with the moving member 310 to rotate, and further drive the moving member 310 to move along the length direction of the second link assembly 220.

In connection with the previous embodiments, the third bearing surface 121 may be provided on a rotating member rotatably coupled to the base assembly 100 and the stop surface may be provided on the transmission member 211.

In some embodiments, the supporting member 320 may also abut against the abutment surface during the process of matching the supporting member 320 with the third bearing surface 121 to form a supporting structure, so as to fix the supporting member 320 reliably.

Further, as shown in FIG. 4, in some embodiments, the rotational axis of the transmission member 211 and the second link assembly 220, the rotational axis of the rotational and moving member 310, and the rotational axis of the second link assembly 220 and the base assembly 100 are in the same plane. In this way, the movement of the first connecting assembly, the second connecting rod assembly 220 and the moving member 310 is smoother, the switching of the foldable device between the folded state and the unfolded state is smoother, and the user experience is good.

Alternatively, in some embodiments, the other end of the transmission member 211 includes two first rotating portions 2111 disposed at intervals, and a portion of the rotating member is disposed between the two first rotating portions 2111 and is rotatably connected to the two first rotating portions 2111. In this way, the part of the rotating member is disposed between the two first rotating portions 2111, and the rotational connection length is long, so that the connection between the transmission member 211 and the rotating member is more reliable and tight.

Further, in some embodiments, the first connection assembly includes a first rotating shaft 214, the first rotating portion 2111 is provided with a first through hole 201, the rotating member is provided with a second through hole 204 coaxially disposed with the first through hole 201, and the first rotating shaft 214 is disposed through the first through hole 201 and the second through hole 204. In this way, the first rotating shaft 214 is in rotating fit with the first through hole 201 and the second through hole 204, so that the transmission piece 211 and the rotating piece are connected in a rotating way, and the connection is easy to implement and reliable.

Optionally, in some embodiments, a second rotating portion 2112 is provided at one end of the transmission member 211, and the second rotating portion 2112 is hinged to the second link assembly 220. In this way, the second rotating portion 2112 is hinged to the second link, so that the transmission member 211 is reliably rotatably connected to the second link assembly 220.

As shown in fig. 5-13, in some embodiments, the rotating members include a first rotating member 212 and a second rotating member 213. One end of the first rotational member 212 is rotatably coupled to the base assembly 100 and the second link assembly 220 is rotatably coupled to the base assembly 100. The other end of the first rotating member 212 is rotatably connected to one end of the second rotating member 213 and the other end of the transmission member 211, and the other end of the second rotating member 213 is rotatably connected to the moving member 310. In this way, in the process of switching the foldable electronic device 10 from the folded state to the unfolded state, the folding mechanism 12 is also switched from the folded state to the unfolded state, and the link assemblies at both sides of the base assembly 100 rotate around the base assembly 100, so that when the first rotating member 212 and the second link assembly 220 rotate along the base assembly 100, the second link assembly 220 can drive the moving member 310 to rotate, and the transmission member 211 synchronously drives the first rotating member 212 and the second rotating member 213 to rotate. In this process, the second rotating member 213 drives the moving member 310 to slide along the length direction of the second link assembly 220 and is disposed near the base assembly 100. At this time, the supporting member 320 is opened to the supporting state in the process of moving the supporting member 320 along with the moving member 310 until the supporting member 320 and the third bearing surface 121 cooperate to form a supporting structure, so as to support the flexible display screen 11 by using the supporting structure. When the foldable electronic device 10 is switched from the unfolded state to the folded state, the folding mechanism 12 is also switched from the unfolded state to the folded state, and the link assemblies at 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 second link assembly 220 rotate along the base frame assembly 100, the second link assembly 220 can drive the moving member 310 to rotate, and the transmission member 211 synchronously drives the first rotating member 212 and the second rotating member 213 to rotate. In this process, the second rotating member 213 drives the moving member 310 to slide along the length direction of the second link assembly 220 and is disposed away from the base assembly 100. At this time, in the process that the supporting member 320 moves along with the moving member 310, the supporting member 320 is disposed at an included angle with respect to the third bearing surface 121, so as to form the accommodating space 303 until the foldable electronic device 10 is in a folded state, so that a portion of the flexible display screen 11 can be bent in the accommodating space 303, which can reduce the bending stress suffered by the flexible display screen 11, and improve the service life of the flexible display screen 11.

Based on the above embodiments, as shown in fig. 4, in some embodiments, a first rotation axis is provided between the first rotation member 212 and the base assembly 100, a second rotation axis is provided between the first rotation member 212 and the second rotation member 213, the second rotation member 213 is parallel to a third rotation axis of the moving member 310, and the first rotation axis, the second rotation axis and the third rotation axis are parallel to each other, and the second rotation axis is located between the first rotation axis and the third rotation axis. In this way, in the process of driving the moving member 310 to move by the first link assembly 210, since the first rotation axis, the second rotation axis and the third rotation axis are parallel to each other, and the second rotation axis is located between the first rotation axis and the third rotation axis, the transmission member 211 is located between the first rotation member 212 and the second rotation member 213, and the second rotation member 213 is located between the moving member 310.

As shown in fig. 5-13, in some embodiments, one end of the first rotational member 212 includes a first guide 2121, and the base assembly 100 is provided with a first arcuate slot 110, the first guide 2121 being in rotational engagement with the first arcuate slot 110. In this way, the first guide portion 2121 is in rotation fit with the first arc-shaped groove 110, so that a portion of the first rotating member 212 can be embedded into the base assembly 100 for moving, so that the flexible display screen 11 is prevented from being pressed against the flexible display screen 11 due to the formation of the connecting protruding points, and the flexible display screen 11 can be smoothly arranged on the folding mechanism 12.

Alternatively, the first guide 2121 may have a circular arc shape and be inserted into the first arc-shaped groove 110.

As shown in fig. 6 and fig. 9 to 11, 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, and a portion of the second hinge portion 2132 is embedded in the first hinge portion 2122 and is hinged. In this way, a portion of the second rotating member 213 is disposed between the two first hinge portions 2122, so that the connection between the transmission member 211 and the rotating member is more reliable and tight.

Based on the above embodiments, in some embodiments, the first connection assembly includes a first rotating shaft 214, the first hinge 2122 includes at least two first rotating bodies 202 disposed at intervals, a first gap 203 is formed between two adjacent first rotating bodies 202 disposed at intervals, and the first rotating bodies 202 are provided with second through holes 204; the second hinge portion 2132 includes at least two second rotating bodies 205 disposed at intervals, a second gap 206 is formed between two adjacent second rotating bodies 205 at intervals, the second rotating bodies 205 are provided with third through holes 207, one of the second rotating bodies 205 is inserted into the first gap 203, and one of the first rotating bodies 202 is inserted into the second gap 206, so that the second through holes 204 are disposed coaxially with the third through holes 207, and the first rotating shaft 214 is disposed through the second through holes 204 and the third through holes 207. In this way, the second rotating bodies 205 are accommodated by using the first notches 203 formed by the two adjacent first rotating bodies 202, and the first rotating bodies 202 are accommodated by using the second notches 206 formed by the two adjacent second rotating bodies 205, so that the first rotating piece 212 and the second rotating piece 213 are mutually nested, the connection of the two rotating pieces is tight, the rotating connection length is large, and the stress intensity is high. And the first rotating member 212 and the second rotating member 213 are connected in a rotating manner by utilizing the rotating fit of the first rotating shaft 214, the second through hole 204 and the third through hole 207, so that the connection is easy to implement and reliable.

Further, as shown in fig. 6 and fig. 9 to 11, in some embodiments, the other end of the transmission member 211 includes two first rotating portions 2111 disposed at intervals, the first rotating portions 2111 are provided with first through holes 201, the first rotating body 202 and the second rotating body 205 are disposed between the two first rotating portions 2111, and the first through holes 201, the second through holes 204 and the third through holes 207 are coaxially disposed, and the first shaft 214 is disposed through the first through holes 201, the second through holes 204 and the third through holes 207. In this way, the first rotating body 202 and the second rotating body 205 are disposed between the two first rotating portions 2111, so that the three are nested with each other, the connection is tight, the rotating connection length is long, and the stress intensity is high. And the first rotating shaft 214 is in rotating fit with the first through hole 201, the second through hole 204 and the third through hole 207, so that the other end of the transmission piece 211 is respectively connected with the first rotating piece 212 and the second rotating piece 213 in a rotating way, and the structure is compact, the implementation is easy, and the connection is reliable.

As shown in fig. 6 and fig. 9 to 11, in some embodiments, the first connecting assembly includes a second rotating shaft 215, 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 disposed at intervals, a third gap 209 is formed between two adjacent third rotating bodies 208 at intervals, and a fourth through hole 2010 is formed in the third rotating body 208; the moving member 310 includes at least two mounting bodies 311 disposed at intervals, a fourth gap 312 is formed between two adjacent mounting bodies 311 at intervals, the mounting bodies 311 are provided with a rotating slot 3111, one of the mounting bodies 311 is inserted into the third gap 209, one of the third rotating bodies 208 is inserted into the fourth gap 312, the fourth through hole 2010 is disposed coaxially with the rotating slot 3111, and the second rotating shaft 215 is disposed through the fourth through hole 2010 and the rotating slot 3111. In this way, the third notch 209 formed by two adjacent third rotating bodies 208 is used to accommodate the mounting body 311, and the fourth notch 312 formed by two adjacent mounting bodies 311 is used to accommodate the third rotating bodies 208, so that the second rotating member 213 and the moving member 310 are mutually nested, the connection between the second rotating member 213 and the moving member is tight, the rotating connection length is large, and the stress intensity is high. The second rotating shaft 215 is connected with the fourth through hole 2010, and the second rotating shaft 215 is sleeved in the rotating groove 3111, so that the second rotating member 213 is rotatably connected with the moving member 310, which is easy to implement and reliable in connection.

On the basis of any of the above embodiments, as shown in fig. 6, 8, 9 and 12 to 13, in some embodiments, the second link assembly 220 includes a third rotating member 221, the first link assembly 210 includes a transmission member 211, the support assembly 300 includes a moving member 310, the third rotating member 221 is rotatably connected to the base assembly 100 and the transmission member 211, respectively, and the third rotating member 221 is slidably connected to the moving member 310. In this way, the transmission member 211 is utilized to drive the third rotating member 221 and the transmission member 211 to rotate synchronously, so that the transmission member 211 is utilized to drive the first link assembly 210 and the moving member 310 to rotate synchronously, and the first link assembly 210 is utilized to drive the moving member 310 to slide along the third rotating member 221.

Specifically, referring to fig. 5, 6, and 10 to 13, in the process of switching the foldable electronic device 10 from the folded state to the unfolded state, the folding mechanism 12 is also switched from the folded state to the unfolded state, and the link assemblies at both sides of the base frame assembly 100 rotate around the base frame assembly 100, so that when the first link assembly 210 and the second link assembly 220 synchronously rotate along the base frame assembly 100, the moving member 310 can be driven to rotate by the third rotating member 221, and the first link assembly 210 drives the moving member 310 to slide along the length direction of the third rotating member 221 and is disposed close to the base frame assembly 100. At this time, the supporting member 320 is opened to the supporting state in the process of moving the supporting member 320 along with the moving member 310 until the supporting member 320 and the third bearing surface 121 cooperate to form a supporting structure, so as to support the flexible display screen 11 by using the supporting structure. When the foldable electronic device 10 is switched from the open state to the folded state, the folding mechanism 12 is also switched from the unfolded state to the folded state, so that when the first link assembly 210 and the third rotating member 221 rotate along the base assembly 100, the moving member 310 can be driven to rotate by the third rotating member 221, and the first link assembly 210 drives the moving member 310 to slide along the length direction of the third rotating member 221 and is disposed away from the base assembly 100. At this time, in the process that the supporting member 320 moves along with the moving member 310, the supporting member 320 is disposed at an included angle with respect to the third bearing surface 121, so as to form the accommodating space 303 until the foldable electronic device 10 is in a folded state, so that a portion of the flexible display screen 11 can be bent in the accommodating space 303, which can reduce the bending stress suffered by the flexible display screen 11, and improve the service life of the flexible display screen 11.

Further, as shown in fig. 6, 8, 9, and 12 to 13, in some embodiments, the third rotating member 221 includes a third rotating portion 2211 and a second guiding portion 2212. The third rotational portion 2211 is rotatably coupled to the base assembly 100. The moving member 310 is provided with a slide groove 301 slidably engaged with the second guide portion 2212. In this way, the third rotating member 221 is rotatably connected to the base assembly 100 through the third rotating portion 2211, and in the process of driving the moving member 310 to rotate, the moving member 310 is driven by the first link assembly 210 to slide along the length direction of the second guiding portion 2212.

In combination with the first rotating member 212 and the second rotating member 213, in the process of switching the foldable electronic device 10 from the folded state to the unfolded state, the folding mechanism 12 is also switched from the folded state to the unfolded state, and the link assemblies at both sides of the base frame assembly 100 rotate around the base frame assembly 100, so that when the first link assembly 210 and the second link assembly 220 synchronously rotate along the base frame assembly 100, the first rotating member 212 and the transmission member 211 can synchronously drive the moving member 310 to rotate when the third rotating member 221 drives the moving member 310 to rotate, and the second rotating member 213 is driven to rotate towards the set direction, so as to drive the moving member 310 to slide along the length direction of the second guiding portion 2212 and to be disposed close to the base frame assembly 100. At this time, the supporting member 320 is opened to the supporting state in the process of moving the supporting member 320 along with the moving member 310 until the supporting member 320 and the third bearing surface 121 cooperate to form a supporting structure, so as to support the flexible display screen 11 by using the supporting structure. When the foldable electronic device 10 is switched from the open state to the folded state, the folding mechanism 12 is also switched from the unfolded state to the folded state, so that when the first link assembly 210 and the third rotating member 221 rotate along the base frame assembly 100, the first rotating member 212 and the transmission member 211 are synchronously driven when the third rotating member 221 drives the moving member 310 to rotate, and the second rotating member 213 is driven to rotate towards the set direction, so as to drive the moving member 310 to slide along the length direction of the second guiding portion 2212 and be disposed away from the base frame assembly 100. At this time, in the process that the supporting member 320 moves along with the moving member 310, the supporting member 320 is disposed at an included angle with respect to the third bearing surface 121, so as to form the accommodating space 303 until the foldable electronic device 10 is in a folded state, so that a portion of the flexible display screen 11 can be bent in the accommodating space 303, which can reduce the bending stress suffered by the flexible display screen 11, and improve the service life of the flexible display screen 11.

It should be noted that the specific implementation of the second guiding portion 2212 may be various, including but not limited to a guiding rod, a guiding block, a guiding bar, a guiding rod, etc.

In addition, the "second guiding portion 2212" may be a "portion of the third rotating member 221", that is, the "second guiding portion 2212" is integrally formed with "other portions of the third rotating member 221, such as the third rotating portion 2211"; it is also possible to make a separate member separable from the other parts of the third rotating member 221, such as the third rotating portion 2211, that is, the "second guiding portion 2212" may be made separately and then combined with the other parts of the third rotating member 221, such as the third rotating portion 2211, into a whole.

Equivalently, a "body" or a "portion" may be a part of a corresponding "member", i.e., the "body" or the "portion" is integrally formed with the other portion of the "member"; or a separate component which is separable from the other part of the component, namely, a certain body and a certain part can be independently manufactured and then combined with the other part of the component into a whole. The expressions of "a body" and "a portion" are merely examples of one embodiment, and are not intended to limit the scope of the disclosure, so long as the features described above are included and the actions are the same, it should be understood that the invention is equivalent.

Further, as shown in fig. 6, 8, 9, and 12 to 13, in some embodiments, the third rotating member 221 further includes a fourth rotating portion 2213, the fourth rotating portion 2213 is located between the second guiding portion 2212 and the third rotating portion 2211, and the fourth rotating portion 2213 is rotatably connected to the transmission member 211. In this way, the fourth rotating part 2213 is disposed between the second guiding part 2212 and the third rotating part 2211 and is rotationally connected with the transmission part 211, so that a four-bar mechanism is formed between the third rotating part 221 and the transmission part 211, between the first rotating part 212 and the base frame assembly 100, and the moving part 310 is driven to rotate along the third rotating part 221 by deformation of the four-bar mechanism, and the moving part 310 is driven to move along the guiding direction of the second guiding part 2212 by the second rotating part 213, and the moving part 310 is utilized to drive the supporting part 320 to rotate, so that the switching between the supporting state and the avoiding state is realized, and the transmission is reliable.

Optionally, in some embodiments, the third rotational member 221 includes a third rotational shaft 222 mounted to the base assembly 100, and the third rotational portion 2211 includes a first rotational aperture 2001 in rotational engagement with the third rotational shaft 222. The fourth rotating portion 2213 includes a fourth rotating shaft 223, and the fourth rotating shaft 223 is rotatably connected with the transmission member 211. In this manner, the third rotational member 221 is rotatably disposed on the base assembly 100 by the third rotational shaft 222 mounted on the base assembly 100 engaging the first rotational aperture 2001. And the fourth rotating shaft 223 is in rotary connection with the transmission member 211, so that the third rotating member 221 is in rotary connection with the transmission member 211, and the structure is compact and easy to realize.

As shown in fig. 6, 8, 9, and 12 to 13, in some embodiments, the second guiding portion 2212 includes a guiding body 2002 formed by extending from the fourth rotating portion 2213 toward a side facing away from the third rotating portion 2211, and the guiding body 2002 is slidably engaged with the chute 301. In this way, the moving member 310 is slidably matched with the guide body 2002 through the sliding groove 301, so that the supporting member 320 can be driven to switch between the supporting state and the avoiding state, so that the supporting member 320 can support the flexible display screen 11 in the supporting state, and can form the accommodating space 303 to avoid the flexible display screen 11 in the avoiding state.

As shown in fig. 12 and 13, in some embodiments, the third rotating member 221 includes a receiving recess 2214, and the receiving recess 2214 is disposed between the second guide portion 2212 and the third rotating portion 2211; when the folding mechanism 12 is in the folded state, the accommodating recess 2214, the second bearing surface 302, and the third bearing surface 121 enclose an accommodating space 303. In this way, the curvature of the flexible display screen 11 can be better adapted by using the accommodating recess 2214, and the shape of the accommodating recess 2214 can be designed according to the curvature of the flexible display screen 11, so that the accommodating space 303 can be formed and can be attached to the flexible display screen 11 to support the bending of the flexible display screen 11.

It should be noted that, the implementation manner of the accommodating recess 2214 may be various, including a circular arc groove, an elliptical arc groove, a water drop groove, and the like.

Optionally, the third rotating member 221 includes a support body 2215 rotatably connected to the base assembly 100 and an arc body 2216 connected to the support body 2215, the support body 2215 is provided with a third rotating portion 2211, and the arc body 2216 is used to form a receiving recess 2214. Thus, when the folding mechanism 12 is in the unfolded state, the supporting member 320 cooperates with the third bearing surface 121 and the supporting body 2215 to form a supporting structure. When the folding mechanism 12 is in the folded state, the supporting member 320 and the arc-shaped body 2216 are disposed at an angle with respect to the third bearing surface 121, so as to form the accommodating space 303.

In addition, the arrangement of the arc-shaped body 2216 is also beneficial to inserting the guide body 2002 below the moving member 310 to be far away from the third bearing surface 121, so that the transition between the support body 2215 and the guide body 2002 is smooth, and interference is reduced.

In an exemplary embodiment, when the folding mechanism 12 is in the folded state, the two third rotating members 221 are disposed opposite to each other, and the arc-shaped body 2216 of the two third rotating members 221 can form the water-drop-shaped accommodating space 303.

In some embodiments, the folding mechanism 12 further includes a synchronizing gear and a damping assembly 500, and the synchronizing gear and the damping assembly 500 are disposed on the third rotating shaft 222. In this way, the synchronous gear and the damping assembly 500 are disposed on the third rotating shaft 222, so as to realize the synchronous belt damping rotation of the two groups of second link assemblies 220, so that the foldable electronic device 10 cannot easily rotate, and the use is convenient.

On the basis of any of the above embodiments of the moving member 310, as shown in fig. 5, 6, 8, 12 and 13, in some embodiments, the moving member 310 is provided with a first arc-shaped guiding portion 313, and the supporting member 320 is provided with a second arc-shaped guiding portion 321, and the first arc-shaped guiding portion 313 is in guiding connection with the second arc-shaped guiding portion 321, so that the moving member 310 is rotatably connected with the supporting member 320. In this way, the first arc guiding portion 313 is in guiding connection with the second arc guiding portion 321, so that the moving member 310 is rotatably connected with the supporting member 320, and the rotation range is controllable.

It should be noted that the first arc-shaped guiding portion 313 and the second arc-shaped guiding portion 321 may be engaged in various manners, including but not limited to an arc-shaped sliding rail structure, an arc-shaped guiding block structure, a hinge structure, etc.

Further, as shown in fig. 6, 8, 12 and 13, in some embodiments, a second arc-shaped groove 304 is disposed between one of the first arc-shaped guiding portion 313 and the second arc-shaped guiding portion 321, and the other is disposed with a second arc-shaped body 2216, and the second arc-shaped body 2216 is in guiding engagement with the second arc-shaped groove 304. Thus, by inserting the second arc-shaped body 2216 into the second arc-shaped groove 304, a rotating fit is achieved so that a portion of the supporter 320 may be inserted into the mover 310 to perform a movement. The flexible display screen 11 is prevented from being pressed by forming the connecting convex points, so that the flexible display screen 11 can be smoothly arranged on the folding mechanism 12.

Further, as shown in FIGS. 10-13, in some embodiments, the displacement member 310 is provided with a relief surface 314, wherein the relief surface 314 is disposed farther from the third bearing surface 121 than the portion of the sidewall of the base assembly 100 in the thickness-wise cross-section of the folding mechanism 12. When the folding mechanism 12 is in the unfolded state, portions of the support 320 are disposed away from the relief surface 314. When the folding mechanism 12 is in the folded state, the support 320 is positioned against or adjacent to the relief surface 314. Thus, with the relief surface 314, when the folding mechanism 12 is in the unfolded state, a portion of the support member 320 is disposed away from the relief surface 314 and abuts against the first link assembly 210, and another portion of the support member 320 abuts against the relief surface 314, so that the support member 320 reliably provides a supporting force. When the folding mechanism 12 is in the folded state, the supporting member 320 is attached to or near the avoiding surface 314, so that an avoiding can be formed to form the accommodating space 303.

It should be noted that, the "avoiding surface 314" may be provided in various manners, including, but not limited to, an avoiding slope and an avoiding arc surface, so long as an avoiding space that does not interfere with the movement of the support 320 can be formed.

As shown in fig. 10 to 13, in some embodiments, the support member 320 is the support plate 120, the relief surface 314 is a relief inclined surface that is fitted to the support member 320, and in a cross-section of the folding mechanism 12 in a thickness direction, the relief inclined surface is inclined downward from one end far from the base frame assembly 100 to the other end near the base frame assembly 100 so as to gradually be disposed away from the third bearing surface 121. Thus, when the folding mechanism 12 is in the unfolded state, the one end of the supporting member 320 is far away from the other end of the avoiding inclined surface and abuts against the first link assembly 210, and the other end of the supporting member 320 abuts against the one end of the avoiding inclined surface. And in the process of switching the folding mechanism 12 from the unfolding state to the folding state, one end of the supporting member 320 is gradually close to the other end of the avoidance slope until the supporting member 320 is attached to the avoidance slope, and the avoidance slope can reliably support the supporting member 320.

Similarly, the support 320 is an arc, the avoidance surface 314 is an avoidance surface that is attached to the support 320, and on a section plane in the thickness direction of the folding mechanism 12, the avoidance surface is bent downward from one end far away from the base assembly 100 to the other end near the base assembly 100, so as to gradually be far away from the third bearing surface 121. Thus, when the folding mechanism 12 is in the unfolded state, the one end of the supporting member 320 is far away from the other end of the avoiding cambered surface and abuts against the first link assembly 210, and the other end of the supporting member 320 abuts against the one end of the avoiding cambered surface. And in the process of switching the folding mechanism 12 from the unfolding state to the folding state, one end of the supporting member 320 is gradually close to the other end of the avoiding cambered surface until the supporting member 320 is attached to the avoiding cambered surface, and the supporting member 320 can be reliably supported by utilizing the avoiding cambered surface.

On the basis of any embodiment of the moving member, in some embodiments, the folding mechanism further comprises a damping assembly, and the damping assembly is in damping rotation fit with the first link assembly and/or the second link assembly. Therefore, the damping component is arranged, so that the connecting rod component can be connected to the base frame component in a damping rotation manner, and the foldable electronic equipment cannot easily rotate and is convenient to use.

It should be noted that the damping component may be disposed on any one of the first rotating shaft, the second rotating shaft, the third rotating shaft, and the fourth rotating shaft, so as to meet the above requirements.

In some embodiments, the damping assembly is disposed on the third shaft. Therefore, the damping component is arranged on the third rotating shaft, and the two groups of second connecting rod components rotate with damping, so that the foldable electronic equipment cannot easily rotate, and the use is convenient.

Further, as shown in fig. 5, 7 and 14, in some embodiments, the second link assembly 220 includes a third rotating shaft 222 and a mating portion 224, the damping assembly 500 includes an elastic member 520, a cam 530 and a mounting member 510 fixedly connected to the base assembly 100, one end of the third rotating shaft 222 is fixed to the mounting member 510, the other end is fixed to the base assembly 100, the elastic member 520 and the cam 530 are sleeved on the third rotating shaft, and the elastic member 520 is disposed between the mounting member 510 and the cam 530; one of the cam 530 and the mating portion 224 is provided with a pressing protrusion 531, and the other is provided with a pressing surface 2241 that presses against the pressing protrusion 531 and a second groove 2242 that accommodates the pressing protrusion 531; when the first link assembly 210 rotates, the pressing protrusion 531 presses against the pressing surface 2241; when the supporting member 320 is in the folded state and/or the unfolded state, the pressing protrusion 531 is disposed in the second groove 2242, so that the first link assembly 210 is fixed relative to the base assembly 100, and can only rotate along the direction of driving the supporting member 320 to the folded state or the unfolded state. Thus, when the folding mechanism 12 is in the folded state, the supporting member 320 is in the avoiding state, and the pressing protrusion 531 is disposed in the second groove 2242, so that the link member 200 is fixed relative to the base assembly 100, and only can drive the supporting member 320 toward the supporting state. In addition, under the action of the elastic member 520, a larger rotation force needs to be applied to make the pressing protrusion 531 separate from the second groove 2242 and enter the pressing surface 2241, so that the flexible display screen 11 of the foldable electronic device 10 can be firmly fixed in the folded state, so as to be convenient for a user to carry. And/or, when the folding mechanism 12 is in the unfolded state, the supporting member 320 is in the supporting state, and the pressing protrusion 531 is disposed in the second groove 2242, so that the link member 200 is fixed relative to the base assembly 100, and only can drive the supporting member 320 towards the direction of avoiding state. In addition, under the action of the elastic member 520, a larger rotation force needs to be applied to make the pressing protrusion 531 separate from the second groove 2242 and enter the pressing surface 2241, so that the flexible display screen 11 of the foldable electronic device 10 can be firmly fixed in the unfolded state, so as to facilitate the user to watch and operate the large-screen display.

Specifically, when the support 320 is in the folded state and the unfolded state, the pressing protrusion 531 is disposed in the second groove 2242 to fix the link member 200 with respect to the base assembly 100. Thus, when the folding mechanism 12 is in the folded state, the supporting member 320 is in the avoiding state, and the pressing protrusion 531 is disposed in the second groove 2242, so that the link member 200 is fixed relative to the base assembly 100, and only can drive the supporting member 320 toward the supporting state. In addition, under the action of the elastic member 520, a larger rotation force needs to be applied to make the pressing protrusion 531 separate from the second groove 2242 and enter the pressing surface 2241, so that the flexible display screen 11 of the foldable electronic device 10 can be firmly fixed in the folded state, so as to be convenient for a user to carry. When the folding mechanism 12 is switched from the folded state to the unfolded state, the user can apply a larger rotating force to move the first housing 13 and the second housing 14 relative to each other, and in this process, the pressing protrusion 531 gradually breaks away from the second groove 2242 to be on the bearing surface 2241, and at this time, the pressing protrusion 531 is resisted by the elastic member 520, and in the process opposite to the bearing surface 2241, rotational damping is also provided. When the pressing protrusion 531 falls into the second groove 2242 again, the folded state is in the unfolded state, the supporting member 320 is in the supporting state, and the pressing protrusion 531 is disposed in the second groove 2242, so that the link member 200 is fixed relative to the base frame assembly 100, and can only move along the direction of driving the supporting member 320 toward the avoidance state. In addition, under the action of the elastic member 520, a larger rotation force needs to be applied to enable the pressing protrusion 531 to be separated from the second groove 2242, so that the pressing protrusion 531 can be firmly fixed, and the user can conveniently watch and operate the large-screen display.

It should be noted that, the third rotating member 221 and the mating portion 224 may be integrally formed and fixed, or may be separately manufactured and then separately and fixedly connected.

It should be noted that, the "damping assembly 500" implementation may also have other manners, for example, using friction plates to increase the rotational friction of the rotor; or the rotational resistance of the rotating member is increased by the elastic member 520; or, at least one of the rotation resistance of the rotating member and the like is increased by the magnetic attraction member.

In some embodiments, the material parameters of at least some of the parts of the damping assembly satisfy at least one of: 550HV is more than or equal to the surface hardness is more than or equal to 450HV, the yield strength is more than or equal to 1600MPa, and the tensile strength is more than or equal to 1700MPa. Thus, the hovering effect of the folding mechanism is guaranteed, and the use experience of the foldable electronic equipment is improved.

In some embodiments, the material parameters of the cam satisfy at least one of: 550HV is more than or equal to the surface hardness is more than or equal to 450HV, the yield strength is more than or equal to 1600MPa, and the tensile strength is more than or equal to 1700MPa. Thus, the abrasion resistance of the cam can be improved, and the hover reliability of the folding mechanism can be improved.

Alternatively, the above ranges include 520 HV. Gtoreq.surface hardness. Gtoreq.470 HV; alternatively, 510 HV. Gtoreq.surface hardness. Gtoreq.490 HV

10000MPa is more than or equal to 1600MPa of yield strength; or at least one combination of 10000MPa, 1700MPa or more tensile strength and the like.

As shown in fig. 15 to 18, in some embodiments, the second rotating member 213 is provided with a supporting protrusion 2134, and the supporting protrusion 2134 is provided near the other end of the first rotating member 212. The support protrusions 2134 jack up the support 320 during folding or unfolding of the folding mechanism 12 such that the support 320 forms a first support surface with portions of the first rotational member 212. Thus, since the first link assembly 210 is rotatably coupled to the base assembly 100, the first link assembly 210 is rotatably coupled to the support assembly 300. The first link assembly 210 and the second link assembly 220 are rotatably coupled. The second link assembly 220 is rotatably coupled to the base assembly 100 and the second link assembly 220 is slidably coupled to the support assembly 300. When the first rotating member 212 and the second connecting rod assembly 220 rotate along the base frame assembly 100, the second connecting rod assembly 220 can drive the moving member 310 to rotate, and the driving member 211 can synchronously drive the first rotating member 212 and the second rotating member 213 to rotate, so that the supporting member 320 can be switched between the unfolded state and the folded state along with the folding mechanism 12. And the folding mechanism 12 pushes up the supporting member 320 by the supporting protrusion 2134 during folding or unfolding, so that the supporting member 320 forms a first supporting surface with a portion of the first rotating member 212. In this way, the folding mechanism 12 can face the support of the flexible display screen 11 through the first support in the moving state, and thus the generation of pits in the flexible display screen 11 can be avoided.

In addition, it can be understood that, because the flexible display screen 11 can not produce the pit, and then flexible display screen 11 can not interfere with the inside device of collapsible electronic equipment 10, increase screen motion's free space for flexible display screen 11 bending process is more free, promotes the life of buckling, and then promotes collapsible electronic equipment 10's life. Equivalently, it is also advantageous to reduce the difficulty of arranging the internal structures of the foldable electronic device 10.

Further, the supporting protrusions 2134 jack up the supporting member 320, so that the supporting member 320 and a portion of the first rotating member 212 form a first supporting surface, and the folding mechanism is more compact in the length direction. That is, reducing the occupation of space in the Y-axis direction can free up more space for the torsion mechanism and the over-axis FPC.

For better understanding of the technical solution of the present application, the width direction of the supporting members is set to the X-axis direction, that is, the spacing direction of the two supporting members as shown in fig. 7. The length direction of the support member is set to the Y-axis direction, that is, the spacing direction of the two damper assemblies shown in fig. 7. The thickness direction of the support is set to the Z-axis direction, that is, the cross-sectional direction shown in fig. 10.

The movement state of the folding mechanism 12 includes a process of switching the folding mechanism 12 from the unfolded state to the folded state and a process of switching the folding mechanism 12 from the folded state to the unfolded state.

It should be noted that, the specific implementation manner of the supporting protrusion 2134 may be various, including but not limited to a convex hull, a protrusion, a bump, a post, etc., and the supporting member may be lifted up during the movement of the folding mechanism.

As shown in fig. 15 to 18, in some embodiments, the first rotating member 212 is provided with a first bearing surface 210a, and the supporting member 320 is provided with a second bearing surface 302. When the folding mechanism 12 is in the unfolded state, the supporting protrusions 2134 are disposed away from the supporting pieces 320, and the first bearing surface 210a and the second bearing surface 302 cooperate to form a second supporting surface. The support protrusions 2134 jack up the support 320 to form the first bearing surface 210a with the second bearing surface 302 during the switching of the folding mechanism 12 from the unfolded state to the folded state, or during the switching of the folding mechanism 12 from the folded state to the unfolded state. In this way, in the unfolded state, the foldable electronic device 10 can support the flexible display screen 11 by using the second support surface formed by the cooperation of the first support surface 210a and the second support surface 302, so that the flexible display screen 11 will not generate pits, and the full screen display quality of the foldable electronic device 10 is improved. But may be during the switching of the folding mechanism 12 from the unfolded state to the folded state, or during the switching of the folding mechanism 12 from the folded state to the unfolded state. The support protrusion 2134 is used to jack up the support 320, so that the first bearing surface 210a and the second bearing surface 302 form a first supporting surface, which is easy to support the flexible display screen 11, and thus can avoid the pits generated in the flexible display screen 11.

As shown in fig. 15 to 18, alternatively, in some embodiments, one end of the second rotating member 213 is provided with a relief recess 2135, and the supporting member 320 is provided with a guide portion 322. When the folding mechanism 12 is in the unfolded state, the supporting protrusions 2134 are disposed avoiding the supporting pieces 320, and a portion of the guiding portion 322 is embedded into the avoiding recess 2135, so that the first bearing surface 210a is adjacent to the second bearing surface 302 to form a second supporting surface. In this way, by the cooperation of the guide portion 322 and the avoidance recess 2135, the second rotating member 213 and the supporting member 320 can be prevented from interfering in the unfolded state, and the second bearing surface 302 is prevented from tilting to affect the supporting effect of the second supporting surface. And the first bearing surface 210a and the second bearing surface 302 are close to each other as much as possible, so as to promote the supporting effect. When the folding mechanism 12 is switched from the unfolded state to the folded state, or when the folding mechanism 12 is switched from the folded state to the unfolded state, the supporting protrusions 2134 lift up the guiding parts 322, so that the first bearing surface 210a and the second bearing surface 302 form a first supporting surface. And thus does not affect the formation of the first support fullness.

It should be noted that the first supporting surface and the second supporting surface should be understood in a broad sense, and can support the flexible display screen. In particular, the first support surface and the second support surface include, but are not limited to, the same plane, or between two parallel planes, as long as the support requirement is satisfied.

As shown in fig. 15 and 17, in some embodiments, one end of the second rotating member 213 is provided with a connecting portion 2136 rotatably connected to the other end of the first rotating member 212, and the avoidance recess 2135 is provided between the connecting portion 2136 and the support protrusion 2134. In this way, the avoiding recess 2135 is disposed between the connecting portion 2136 and the supporting protrusion 2134, so that the second rotating member 213 and the supporting member 320 are more tightly engaged, which is beneficial to improving the compactness of the folding mechanism 12.

It should be noted that the specific implementation of the connecting portion 2136 may be various, including the second hinge portion 2132 in the foregoing embodiment.

In some embodiments, one end of the first rotating member 212 includes a first plate 2123 and a first guiding portion 2121, the base assembly 100 is provided with a first arc-shaped slot 110, the first guiding portion 2121 is rotatably engaged with the first arc-shaped slot 110, and the first bearing surface 210a is disposed on an outer side surface of the first plate 2123. In this way, the first guide portion 2121 is in rotation fit with the first arc-shaped groove 110, so that a portion of the first rotating member 212 can be embedded into the base assembly 100 for moving, so that the flexible display screen 11 is prevented from being pressed against the flexible display screen 11 due to the formation of the connecting protruding points, and the flexible display screen 11 can be smoothly arranged on the folding mechanism 12. The first bearing surface 210a is disposed on the first plate 2123, which is easy to implement and facilitates coupling the second bearing surface 302 to the base assembly 100.

In some embodiments, the pedestal assembly 100 includes a third load bearing surface 121. When the folding mechanism 12 is in the unfolded state, the first bearing surface 210a, the second bearing surface 302 and the third bearing surface 121 cooperate to form a first supporting surface. When the folding mechanism 12 is in the folded state, the first bearing surface 210a is disposed at an angle with respect to the third bearing surface 121, so as to form the accommodating space 303.

In any of the above embodiments, as shown in fig. 19, 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 supporting member 320, and the other end of the limiting rod 330 is movably connected to the other one of the moving member 310 and the supporting member 320; when the folding mechanism 12 is in the unfolded state, the limiting rod 330 is in stop fit with the moving member 310 and the supporting member 320, so as to limit the supporting member 320 to rotate continuously in the unfolding direction of the folding mechanism 12. In this way, the stop rod 330 is matched with the moving member 310 and the supporting member 320 to limit the supporting member 320 to rotate continuously towards the unfolding direction of the folding mechanism 12, so that the supporting member 320 can be effectively prevented from tilting, and further the damage to parts or the failure caused by the separation of related parts due to the over-head unfolding of the folding mechanism 12 can be avoided, and even the flexible display screen 11 is damaged.

In some embodiments, as shown in fig. 19, the angle between the stop bar 330 and the first support surface is greater than 30 ° to form a stop structure. Therefore, the limiting rod 330 and the first supporting surface limit the included angle, so that the limiting rod 330, the supporting piece 320 and the moving piece 310 form a downward pulling force of the acting force supporting piece 320, and then the supporting piece 320 can be pulled down, so that the supporting piece 320 is limited to continue to rotate towards the unfolding direction of the folding mechanism 12, and tilting of the supporting piece 320 can be effectively avoided.

Optionally, the included angle between the stop lever 330 and the first supporting surface is 35 °, 40 °, 45 °, 50 °, 55 °, 60 °, 65 °, 70 °, 75 °, etc.

It should be noted that, the specific implementation manner of the stop engagement of the stop lever 330 with the moving member 310 and the supporting member 320 may be various, including, but not limited to, the stop engagement of the stop lever 330 with the stop protrusion, the stop engagement of the stop lever 330 with the stop slot 315, and so on.

As shown in fig. 19, in some embodiments, the support assembly 300 further includes a first limiting shaft 340, the other end of the limiting rod 330 is connected to the first limiting shaft 340, the other one of the moving member 310 and the support member 320 is provided with a limiting slot 315, and a portion of the first limiting shaft 340 is inserted into the limiting slot 315 and is movably matched with the limiting slot 315. When the folding mechanism 12 is in the unfolded state, the first limiting shaft 340 abuts against the end of the limiting groove 315, so that the limiting rod 330 is in stop fit with the moving member 310 and the supporting member 320. In this way, when the folding mechanism 12 is in a moving state, the first limiting shaft 340 moves in the limiting groove 315, so that the movement between the moving member 310 and the supporting member 320 is not affected. When the folding mechanism 12 moves to the unfolded state, the first limiting shaft 340 abuts against the end of the limiting slot 315, so that the limiting rod 330 is in stop fit with the moving member 310 and the supporting member 320. And further avoid damage to parts or failure due to separation of related parts caused by over-head unfolding of the folding mechanism 12, and even damage to the flexible display screen 11.

Alternatively, as shown in fig. 19, in some embodiments, the limiting groove 315 is disposed on the moving member 310, and the supporting member 320 is rotatably connected to one end of the limiting rod 330. The moving member 310 is provided with two first mounting bodies 317 that are provided with avoiding grooves 316 at intervals, which form the other ends of the avoiding limiting rods 330, and the limiting grooves 315 are provided on at least one first mounting body 317 and are communicated with the avoiding grooves 316. In this way, the limiting groove 315 is disposed on the moving member 310, so that the thickness space of the moving member 310 can be fully utilized, and the supporting member 320 can be made as thin as possible. The avoiding groove 316 does not interfere with the movement of the stop lever 330, and facilitates the assembly of the stop lever 330, the first stop shaft 340 and the moving member 310.

Specifically, in the process of installing the limiting rod 330 and the moving member 310, the other end of the limiting rod 330 is arranged in the avoidance groove 316, the limiting groove 315 is inserted through the first limiting shaft 340, the other end of the avoidance groove 316 and the limiting rod 330 is connected, and therefore assembly can be completed, and improvement of the assembly efficiency of the folding mechanism 12 is facilitated.

It should be noted that the connection manner of the first limiting shaft 340 and the limiting rod 330 may be various, including but not limited to welding, integrally forming, bonding, pinning, and other fixed connection manners, and also includes shaft connection, hinging, and the like.

As shown in fig. 19 and 20, in some embodiments, a first mounting through hole 331 is formed at the other end of the limiting rod 330, the first limiting shaft 340 is sleeved with the first mounting through hole 331, and the diameter of the first limiting shaft 340 is greater than or equal to the aperture of the first mounting through hole 331. In this way, zero fit or interference fit is adopted between the first limiting shaft 340 and the first mounting through hole 331, so that the accuracy of the stop fit of the limiting rod 330 with the moving member 310 and the supporting member 320 is improved.

As shown in fig. 19 and 20, 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 fixedly disposed at one end of the first shaft body 341, and a second end shaft 343 fixedly disposed at the other end of the first shaft body 341, where the diameter of the first shaft body 341 is greater than or equal to the diameter of the first mounting through hole 331, the diameter of the first end shaft 342 and the diameter of the second end shaft 343 are greater than the diameter of the first mounting through hole 331, and at least one of the first end shaft 342 and the second end shaft 343 is slidably engaged with the limiting slot 315. Thus, the first end shaft 342 and the second end shaft 343 are matched to avoid too long tolerance of the stop lever 330 and the first stop shaft 340, so as to control the process accuracy. In addition, at least one of the first end shaft 342 and the second end shaft 343 is slidably engaged with the limit groove 315, such that the limit lever 330 can slide and rotate relative to the limit groove 315, but when at least one of the first end shaft 342 and the second end shaft 343 abuts against an end of the limit groove 315, the limit lever 330 can be in a stop engagement with the moving member 310 and the supporting member 320.

Optionally, in some embodiments, the first end shaft 342 and/or the second end shaft 343 are provided with a first lead-in. And/or, an end of the first mounting through hole 331 is provided with a first introduction hole. In this way, the first end shaft 342 or the second end shaft 343 is conveniently inserted into the first mounting through hole 331 by the guiding action of the first introduction portion and/or the first introduction hole, so that the first mounting through hole 331 is press-fitted with the first shaft body 341.

The specific implementation of the first lead-in portion may be varied, including but not limited to a rounded or inverted cone structure.

The specific implementation of the first introduction hole may be various, including but not limited to a reverse round hole structure or a reverse taper hole structure.

In some embodiments, at least a portion of the stopper rod 330 has elasticity to enable the first mounting through hole 331 to be elastically deformed. In this way, the first limiting shaft 340 is conveniently extruded into the first mounting through hole 331, and the rotation damping of the limiting rod 330 is improved, so that the hovering effect of the folding mechanism 12 is improved.

In combination with the foregoing embodiment of the first mounting body 317, assembly is facilitated, and the first limiting shaft 340 is tightly matched with the limiting rod 330, so as to improve the stopping precision.

As shown in fig. 19, 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 320 is provided with a fitting hole 323, and a portion of the second limiting shaft 350 is inserted into the fitting hole 323 and is rotatably fitted with the fitting hole 323. Thus, the portion passing through the second limiting shaft 350 is inserted into the coupling hole 323 and is rotatably coupled with the coupling hole 323. It is convenient to realize that one end of the limit lever 330 is rotatably connected with the supporter 320.

Alternatively, as shown in fig. 20, in some embodiments, the other end of the limiting rod 330 is provided with a second mounting through hole 332, the second limiting shaft 350 is in a rotating fit with the second mounting through hole 332, and the diameter of the second limiting shaft 350 is greater than or equal to the aperture of the second mounting through hole 332. In this way, zero fit or interference fit is adopted between the second limiting shaft 350 and the second mounting through hole 332, so as to improve the accuracy of the stop fit between the limiting rod 330 and the moving member 310 and the supporting member 320.

As shown in fig. 19 and 20, 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 fixedly disposed at one end of the second shaft body 351, and a fourth end shaft 353 fixedly disposed at the other end of the second shaft body 351, the diameter of the second shaft body 351 is greater than or equal to the diameter of the second mounting through hole 332, the diameter of the third end shaft 352 and the diameter of the fourth end shaft 353 are greater than the diameter of the second mounting through hole 332, and at least one of the third end shaft 352 and the fourth end shaft 353 is rotatably engaged with the engaging hole 323. Therefore, the third end shaft 352 and the fourth end shaft 353 are matched to avoid too long matching tolerance between the limiting rod 330 and the second limiting shaft 350, control the process precision, improve the transmission precision of the folding mechanism 12, and facilitate the realization of the stop structure.

In some embodiments, the third end shaft 352 and/or the fourth end shaft 353 are provided with a second lead-in. And/or, an end of the second mounting through hole 332 is provided with a second introduction hole. In this way, the third end shaft 352 or the fourth end shaft 353 is inserted into the second mounting through hole 332 with the second introduction portion and/or the second introduction hole being engaged, so that the second mounting through hole 332 is press-engaged with the second shaft 351.

The second lead-in portion may be embodied in a variety of ways including, but not limited to, rounded or inverted cone structures.

The second introduction hole may be embodied in various ways, including but not limited to a reverse round hole structure or a reverse taper hole structure.

In some embodiments, the stopper rod 330 has elasticity so that the second mounting through hole 332 can be elastically deformed. In this way, the second limiting shaft 350 is conveniently extruded into the second mounting through hole 332, so that the rotation damping of the limiting rod 330 is improved, and the hovering effect of the folding mechanism 12 is improved.

With any of the above embodiments, the folding mechanism can hover at any angle in the range of 45-135 degrees. Thus, the folding mechanism can hover in the range of 45-135 degrees and is determined to be in a hovering state. And the folding mechanism can realize instant turning and instant stopping in a hovering state, so that a user can conveniently use the foldable electronic equipment at a plurality of angles, and the use experience of the foldable electronic equipment is improved.

It should be noted that the movement state of the folding mechanism includes a hovering state. In some embodiments, the support protrusions are capable of jacking up the support member at least in a hover state of the folding mechanism.

In the description of the present 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", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present disclosure.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "first," "second," etc. can include at least one such feature, either explicitly or implicitly. In the description of the present disclosure, the meaning of "a plurality" is at least two, such as two, three, etc., unless explicitly specified otherwise.

In the present disclosure, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art as the case may be.

In this disclosure, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "mounted," "positioned," "secured" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, when one element is considered as being "fixedly connected" to another element, the two elements may be fixed by a detachable connection manner, or may be fixed by a non-detachable connection manner, such as sleeving, clamping, integrally forming, or welding, which may be implemented in the conventional technology, which is not further described herein.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples merely represent several embodiments of the present disclosure, which are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that variations and modifications can be made by those skilled in the art without departing from the inventive concepts of the present disclosure, which are within the scope of the present disclosure.

Claims

1. A folding mechanism, comprising:

a base assembly;

the support assembly comprises a moving piece and a support piece, and the moving piece is rotationally connected with the support piece;

the connecting rod component comprises a first connecting rod component and a second connecting rod component, the second connecting rod component is rotationally connected with the base frame component, and the second connecting rod component is in sliding connection with the supporting piece;

wherein the first link assembly comprises:

one end of the transmission piece is rotationally connected with the second connecting rod assembly;

a first rotating member and a second rotating member; one end of the first rotating member is rotationally connected with the base frame assembly, the other end of the first rotating member is rotationally connected with one end of the second rotating member and the other end of the transmission member, the other end of the second rotating member is rotationally connected with the moving member, the second rotating member is provided with a supporting protrusion, and the supporting protrusion is arranged close to the other end of the first rotating member;

the supporting protrusion jacks up the supporting piece in the folding or unfolding process of the folding mechanism, so that the supporting piece and part of the first rotating piece form a first supporting surface.

2. The folding mechanism of claim 1, wherein the first rotating member is provided with a first bearing surface and the support member is provided with a second bearing surface;

when the folding mechanism is in the unfolding state, the supporting protrusions are arranged avoiding the supporting piece, and the first bearing surface and the second bearing surface are matched to form a second supporting surface;

when the folding mechanism is switched from the unfolding state to the folding state, or the folding mechanism is switched from the folding state to the unfolding state, the supporting protrusion jacks up the supporting piece, so that the first bearing surface and the second bearing surface form the first supporting surface.

3. The folding mechanism of claim 2, wherein one end of the second rotating member is provided with a recess for avoiding, and the supporting member is provided with a guide portion;

when the folding mechanism is in the unfolding state, the supporting bulge is arranged avoiding the supporting piece, and part of the guiding part is embedded into the avoiding concave part, so that the first bearing surface is adjacent to the second bearing surface to form the first bearing surface;

when the folding mechanism is switched from the unfolding state to the folding state, or the folding mechanism is switched from the folding state to the unfolding state, the supporting protrusion jacks up the guide part, so that the first bearing surface and the second bearing surface form the first bearing surface.

4. A folding mechanism according to claim 3, wherein one end of the second rotating member is provided with a connecting portion rotatably connected to the other end of the first rotating member, and the escape recess is provided between the connecting portion and the supporting boss.

5. The folding mechanism of claim 2, wherein one end of the first rotating member includes a first plate body and a first guiding portion, the base frame assembly is provided with a first arc-shaped slot, the first guiding portion is in rotating fit with the first arc-shaped slot, and the first bearing surface is disposed on an outer side surface of the first plate body.

6. The folding mechanism of claim 2, wherein the base assembly includes a third bearing surface;

when the folding mechanism is in an unfolding state, the first bearing surface, the second bearing surface and the third bearing surface are matched to form the first supporting surface;

when the folding mechanism is in a folding state, the first bearing surface is arranged at an included angle relative to the third bearing surface so as to form an accommodating space.

7. The folding mechanism of any one of claims 1 to 6, wherein the support assembly further comprises a stop lever, one end of the stop lever is rotatably connected to one of the moving member and the support member, and the other end of the stop lever is movably connected to the other of the moving member and the support member;

When the folding mechanism is in the unfolding state, the limiting rod is in stop fit with the moving piece and the supporting piece, so that the supporting piece is limited to rotate continuously in the unfolding direction of the folding mechanism.

8. The folding mechanism of claim 7, wherein the angle between the stop bar and the first support surface is greater than 30 °.

9. The folding mechanism of claim 7, wherein the support assembly further comprises a first limit shaft, the other end of the limit rod is connected with the first limit shaft, the other one of the moving member and the support member is provided with a limit groove, and a part of the first limit shaft is inserted into the limit groove and is in movable fit with the limit groove;

when the folding mechanism is in the unfolding state, the first limiting shaft abuts against the end part of the limiting groove, so that the limiting rod is in stop fit with the moving piece and the supporting piece.

10. The folding mechanism of claim 9, wherein the limit groove is provided in the moving member, and the supporting member is rotatably connected to one end of the limit rod; the movable member is provided with two first installation bodies which are arranged at intervals to form an avoidance groove which is formed in the other end of the limiting rod, and the limiting groove is formed in at least one first installation body and communicated with the avoidance groove.

11. The folding mechanism of claim 9, wherein a first mounting through hole is formed in the other end of the limiting rod, the first limiting shaft is in sleeve fit with the first mounting through hole, and the diameter of the first limiting shaft is larger than or equal to the aperture of the first mounting through hole.

12. The folding mechanism of claim 11, wherein the first limiting shaft comprises a first shaft body in running fit with the first mounting through hole, a first end shaft fixedly arranged at one end of the first shaft body, and a second end shaft fixedly arranged at the other end of the first shaft body, the diameter of the first shaft body is greater than or equal to the aperture of the first mounting through hole, the diameter of the first end shaft and the diameter of the second end shaft are greater than the aperture of the first mounting through hole, and at least one of the first end shaft and the second end shaft is in sliding fit with the limiting groove.

13. Folding mechanism according to claim 12, characterized in that the first end shaft and/or the second end shaft is provided with a first lead-in; and/or the end part of the first mounting through hole is provided with a first guide hole.

14. The folding mechanism of claim 11, wherein at least a portion of the stop bar is resilient to enable elastic deformation of the first mounting aperture.

15. The folding mechanism of claim 9, wherein the support assembly further comprises a second limiting shaft, one end of the limiting rod is connected to the second limiting shaft, the support member is provided with a mating hole, and a portion of the second limiting shaft is inserted into the mating hole and is rotatably mated with the mating hole.

16. The folding mechanism of claim 15, wherein a second mounting through hole is formed in one end of the limiting rod, the second limiting shaft is in running fit with the second mounting through hole, and the diameter of the second limiting shaft is greater than or equal to the aperture of the second mounting through hole.

17. The folding mechanism of claim 16, wherein the second limiting shaft comprises a second shaft body in rotational fit with the second mounting through hole, a third end shaft fixedly arranged at one end of the second shaft body, and a fourth end shaft fixedly arranged at the other end of the second shaft body, the diameter of the second shaft body is greater than or equal to the diameter of the second mounting through hole, the diameter of the third end shaft and the diameter of the fourth end shaft are greater than the diameter of the second mounting through hole, and at least one of the third end shaft and the fourth end shaft is in rotational fit with the mating hole.

18. Folding mechanism according to claim 17, characterized in that the third end shaft and/or the fourth end shaft is provided with a second lead-in; and/or the end part of the second mounting through hole is provided with a second guide hole.

19. The folding mechanism of claim 16, wherein at least a portion of the stop bar is resilient to enable elastic deformation of the second mounting aperture.

20. The folding mechanism of claim 1, wherein at least one of the following components is made of steel having a tensile strength in the range of 1400MPa to 1900 MPa:

a base assembly;

a support assembly;

a link member.

21. The folding mechanism of claim 1, wherein the folding mechanism is hoverable at any angle in the range of 45 ° to 135 °.

22. The folding mechanism of claim 1, further comprising a damping assembly, wherein at least some of the components of the damping assembly have material parameters that satisfy at least one of: 550HV is more than or equal to the surface hardness is more than or equal to 450HV, the yield strength is more than or equal to 1600MPa, and the tensile strength is more than or equal to 1700MPa.

23. The folding mechanism of claim 22, wherein the damping assembly comprises: a cam having material parameters satisfying at least one of: 550HV is more than or equal to the surface hardness is more than or equal to 450HV, the yield strength is more than or equal to 1600MPa, and the tensile strength is more than or equal to 1700MPa.

24. A foldable electronic device comprising a flexible display screen and the folding mechanism of any one of claims 1 to 23, the flexible display screen being folded or unfolded by the folding mechanism.