Hinge mechanism and foldable electronic equipment

Abstract

The invention discloses a hinge mechanism and foldable electronic equipment. The hinge mechanism comprises a base frame assembly, a bearing assembly and a hinge part. The bearing assembly comprises a connecting piece. The hinge part comprises a first connecting rod, a second connecting rod, a third connecting rod and a transmission part, one end of the first connecting rod is rotationally connected with the base frame assembly, the second connecting rod is rotationally connected with the base frame assembly, and the second connecting rod is rotationally connected with one end of the transmission part and is slidably connected with the connecting part; one end of the third connecting rod is rotationally connected with the other end of the transmission part and the other end of the first connecting rod, and the other end of the third connecting rod is rotationally connected with the connecting part. One of the transmission part and the first connecting rod is provided with an abutting convex part, when the hinge mechanism is in a folded state, the connecting part and the base frame assembly are arranged in an included angle, and the abutting convex part abuts against the other one, so that the transmission part extrudes the first connecting rod. The hinge mechanism is not easy to generate abnormal sound, so that the user experience of the foldable electronic equipment is improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of electronics, and in particular, to a hinge mechanism and a foldable electronic device. BACKGROUND

[0002] Electronic devices such as mobile phones and tablets have become indispensable technological products in people's life, learning and entertainment processes. At present, the flexible display screen of the foldable electronic device 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 device is more and more favored by consumers.

[0003] In the related art, the foldable electronic device usually utilizes a hinge mechanism to realize the unfolding or folding of the flexible display screen. However, the traditional hinge mechanism has a movable gap between some parts when in the folded state. This can cause the foldable electronic device to easily produce abnormal sound in the folded state, thereby affecting the user experience. SUMMARY

[0004] The present disclosure provides a hinge mechanism and a foldable electronic device. The hinge mechanism has closely matched related parts in the folded state, is not prone to produce abnormal sound, and is thus beneficial to improving the user experience of the foldable electronic device.

[0005] The technical scheme is as follows:

[0006] According to a first aspect of an embodiment of the present disclosure, a hinge mechanism is provided, comprising a base frame assembly, a bearing assembly, and a hinge part. The bearing assembly comprises a connecting piece. The hinge part comprises a first connecting rod, a second connecting rod, a third connecting rod, and a transmission piece, one end of the first connecting rod is rotationally connected with the base frame assembly, the second connecting rod is rotationally connected with the base frame assembly, one end of the second connecting rod is rotationally connected with the transmission piece, the second connecting rod is slidingly connected with the connecting piece, one end of the third connecting rod is rotationally connected with the other end of the transmission piece and the other end of the first connecting rod, the other end of the third connecting rod is rotationally connected with the connecting piece. One of the transmission piece and the first connecting rod is provided with a pressing protrusion, when the hinge mechanism is in the folded state, the connecting piece and the base frame assembly are arranged at an included angle, the pressing protrusion is abutted against the other one, so as to make the transmission piece press the first connecting rod.

[0007] The technical scheme provided by the embodiment of the present disclosure can include the following beneficial effects:

[0008] When the hinge mechanism is in use, the second connecting rod can drive the connecting piece to slide along the set direction of the second connecting rod during rotation relative to the base frame assembly. During this process, the second connecting rod drives the first connecting rod and the third connecting rod to rotate through the transmission member to limit the swing direction of the connecting piece, and the hinge mechanism has an unfolded state and a folded state. When the hinge mechanism is in the folded state, the connecting piece is arranged at an angle with the base frame assembly and abuts against the convex portion to press the other, so that the transmission member extrudes the first connecting rod, so that the transmission member is closely matched with the first connecting rod and the third connecting rod, and is not easy to rotate, thereby not easy to produce abnormal sound.

[0009] The technical solutions of the present disclosure are further described below:

[0010] In one of the embodiments, when the hinge mechanism is in the folded state, the abutting convex portion abuts against the other to make part of the first connecting rod rise towards the center line direction of the base frame assembly.

[0011] In one of the embodiments, the other end of the third connecting rod is rotationally connected with the connecting piece and has a first rotation center, the other end of the transmission member is rotationally connected with the other end of the first connecting rod and has a second rotation center, and one end of the transmission member is rotationally connected with the second connecting rod and has a third rotation center.

[0012] When the hinge mechanism is in the folded state, the first rotation center and the third rotation center form a first connection line, and the second rotation center is arranged on the inner side of the first connection line to make the abutting convex portion lift the first connecting rod.

[0013] In one of the embodiments, the abutting convex portion is fixedly arranged on the transmission member.

[0014] In one of the embodiments, the bearing assembly further comprises a supporting member rotationally connected with the connecting piece. When the hinge mechanism is in the folded state, the supporting member is arranged in abutment with the connecting piece. When the hinge mechanism is in the unfolded state, at least part of the supporting member is arranged away from the connecting piece to form a supporting structure with the base frame assembly.

[0015] In one of the embodiments, the transmission member is provided with a first gap, and part of the first connecting rod is arranged in the first gap and rotationally connected with part of the transmission member. The abutting convex portion is fixedly arranged on the transmission member and arranged close to the edge of the first gap.

[0016] In one of the embodiments, the other end of the transmission member comprises two first rotation portions arranged at intervals to form the first gap, the first rotation portions are rotationally connected with the other end of the first connecting rod and one end of the third connecting rod, and the abutting convex portion is arranged between the two first rotation portions.

[0017] In one of the embodiments, one end of the third connecting rod is provided with a second rotating part, the other end of the first connecting rod is provided with a third rotating part, the third rotating part is rotationally connected with the second rotating part and is embedded in the first gap and rotationally connected with the first rotating part.

[0018] In one of the embodiments, the hinge part further comprises a first rotating shaft, the first rotating part is provided with a first through hole, the second rotating part is provided with a second through hole, the third rotating part is provided with a third through hole, the second rotating part and the third rotating part are nested to make the first through hole, the second through hole and the third through hole arranged along the same axis and respectively sleeved with the first rotating shaft.

[0019] In one of the embodiments, the first connecting rod comprises a fourth rotating part rotationally connected with the base assembly and a plate body fixed between the fourth rotating part and the third rotating part. When the hinge mechanism is in the folded state, the plate body abuts against the abutting convex part.

[0020] In one of the embodiments, the fourth rotating part comprises an arc-shaped guide body, and the base assembly is provided with an arc-shaped guide groove in guide cooperation with the arc-shaped guide body.

[0021] And / or, one of the transmission member and the first connecting rod is provided with a guide rail body, and the other is provided with a guide groove in guide cooperation with the guide rail body.

[0022] In one of the embodiments, the guide groove comprises two and is arranged on the transmission member, and the abutting convex part is arranged between the two guide grooves.

[0023] In one of the embodiments, the second connecting rod comprises a first connecting body in sliding connection with the connecting member, a second connecting body in rotation connection with the base assembly and a limiting body fixed between the first connecting body and the second connecting body, and the transmission member is provided with a first guide surface. When the hinge mechanism is in the folded state, the first guide surface is arranged between the limiting body and the first connecting rod and forms a limiting surface with the limiting body and part of the first connecting rod.

[0024] In one of the embodiments, the first guide surface comprises a guide inclined surface, and when the hinge mechanism is in the folded state, the guide inclined surface is inclined from the first connecting rod to the limiting body.

[0025] In one of the embodiments, the first connecting body comprises a first side and a second side arranged opposite to the first side, the first side is provided with a first guide part in sliding connection with the connecting member and a fifth rotating part in rotation connection with one end of the transmission member, the fifth rotating part is arranged between the first guide part and the second connecting body, and the second side further comprises a second guide part in sliding connection with the connecting member. The cooperation length of the second guide part with the connecting member is greater than the cooperation length of the first guide part with the bearing assembly.

[0026] In one of the embodiments, the fifth rotating part is arranged opposite to one end of the transmission member in the first side to the second side direction, so that the length of the second guiding part is greater than the length of the first guiding part.

[0027] In one of the embodiments, the fifth rotating part is arranged opposite to one end of the transmission member in the first side to the second side direction, so that the length of the second guiding part is greater than the length of the first guiding part.

[0028] In one of the embodiments, the fifth rotating part is arranged opposite to one end of the transmission member in the first side to the second side direction, so that the length of the second guiding part is greater than the length of the first guiding part.

[0029] In one of the embodiments, the fifth rotating part is arranged opposite to one end of the transmission member in the first side to the second side direction, so that the length of the second guiding part is greater than the length of the first guiding part.

[0030] In one of the embodiments, the fifth rotating part is arranged opposite to one end of the transmission member in the first side to the second side direction, so that the length of the second guiding part is greater than the length of the first guiding part.

[0031] In one of the embodiments, the fifth rotating part is arranged opposite to one end of the transmission member in the first side to the second side direction, so that the length of the second guiding part is greater than the length of the first guiding part.

[0032] In one of the embodiments, the fifth rotating part is arranged opposite to one end of the transmission member in the first side to the second side direction, so that the length of the second guiding part is greater than the length of the first guiding part.

[0033] In one of the embodiments, the fifth rotating part is arranged opposite to one end of the transmission member in the first side to the second side direction, so that the length of the second guiding part is greater than the length of the first guiding part.

[0034] In one of the embodiments, the fifth rotating part is arranged opposite to one end of the transmission member in the first side to the second side direction, so that the length of the second guiding part is greater than the length of the first guiding part.

[0035] In one of the embodiments, the fifth rotating part is arranged opposite to one end of the transmission member in the first side to the second side direction, so that the length of the second guiding part is greater than the length of the first guiding part.

[0036] In one of the embodiments, the fifth rotating part is arranged opposite to one end of the transmission member in the first side to the second side direction, so that the length of the second guiding part is greater than the length of the first guiding part.

[0037] In one of the embodiments, the first rail body comprises a first end portion arranged in the limiting groove, and at least one of the first end portion and the outer surface of the limiting protrusion is provided with a first guide surface for guiding the limiting protrusion into the limiting groove.

[0038] In one of the embodiments, the second rail body comprises a second end portion arranged opposite to the first end portion. When the hinge mechanism is in the unfolded state, the second end portion abuts against the part of the limiting protrusion, so that the limiting protrusion is in the stop cooperation with the stop portion.

[0039] In one of the embodiments, the connecting piece comprises a first matching portion in sliding cooperation with the first guide portion and a second matching portion in sliding cooperation with the second guide portion. The first connecting body further comprises a first limiting portion, and the connecting piece further comprises a second limiting portion.

[0040] When the hinge mechanism is in the unfolded state, the first limiting portion abuts against the second limiting portion, so that the second connecting rod is in the stop cooperation with the connecting piece.

[0041] In one of the embodiments, the first limiting portion is arranged between the first guide portion and the second guide portion, and the second limiting portion is arranged between the first matching portion and the second matching portion.

[0042] And / or, the first limiting portion is arranged at the first guide portion, and the second limiting portion is arranged at the first matching portion.

[0043] And / or, the first limiting portion is arranged at the second guide portion, and the second limiting portion is arranged at the second matching portion.

[0044] In one of the embodiments, one of the first limiting portion and the second limiting portion is provided with a limiting protrusion, and the other one abuts against the limiting protrusion when the hinge mechanism is in the unfolded state.

[0045] In one of the embodiments, the connecting piece comprises a bearing surface and a bottom surface arranged opposite to the bearing surface, the second limiting portion is arranged between the bearing surface and the bottom surface, the second connecting rod comprises a front surface arranged in the same direction as the bearing surface and a back surface arranged opposite to the front surface, and the limiting protrusion is arranged at the back surface.

[0046] In one of the embodiments, on the bottom surface, the first matching portion and the second matching surface extend towards the base assembly and form a second gap, and the second limiting portion is arranged on the side wall of the second gap. When the hinge mechanism is in the unfolded state, the limiting protrusion is arranged in the second gap and abuts against the second limiting portion.

[0047] According to a second aspect of the embodiments of the present disclosure, a foldable electronic device is also provided, which comprises a flexible display screen, a shell body, and a hinge mechanism in any of the above embodiments. The shell body is fixedly connected with the connecting piece, at least part of the flexible display screen covers the hinge mechanism and the shell body, and is folded or unfolded through the hinge mechanism.

[0048] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0049] When in use, this foldable electronic device utilizes a hinge mechanism that drives the flexible display screen to fold or unfold via a support component (e.g., switching between an unfolded and a folded state). When the flexible display screen is unfolded, the hinge mechanism is also unfolded, supporting the flexible display screen via the support component and the base frame component. The hinge mechanism can switch from the unfolded state to the folded state, placing the flexible display screen in a folded position. In this state, the connector and the base frame component are angled together, with the pressing protrusion abutting against the other component, causing the transmission component to press against the first link. This ensures a tight fit between the transmission component and the first and third links, preventing rotation and thus reducing noise. The reduced rotation of the transmission component and the first and third links also better protects the flexible display screen in the folded state.

[0050] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0051] The accompanying drawings, which constitute one end of this disclosure, are used to provide a further understanding of this disclosure. The illustrative embodiments of this disclosure and their descriptions are used to explain this disclosure and do not constitute an undue limitation of this disclosure.

[0052] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0053] Figure 1 This is a schematic diagram of the structure of a foldable electronic device shown in one embodiment (the flexible display screen is in a folded state).

[0054] Figure 2 This is a schematic diagram of the hinge mechanism shown in one embodiment (the hinge mechanism is in the unfolded state).

[0055] Figure 3 for Figure 2 The schematic diagram of the hinge mechanism shown is shown.

[0056] Figure 4 for Figure 2 The diagram shown is an exploded view of the hinge mechanism.

[0057] Figure 5 for Figure 2 The schematic diagram shown is a partial cross-sectional view of the hinge mechanism in a folded state.

[0058] Figure 6 Fig. 1 shows a schematic view of a hinge mechanism in an unfolded state. Figure 4

[0059] Figure 7 Fig. 2 shows a schematic view of a hinge mechanism in a folded state. Figure 4

[0060] Figure 8 Fig. 3 shows a schematic view of a hinge mechanism in a folded state. Figure 4

[0061] Figure 9 Fig. 4 shows a schematic view of a hinge mechanism in an unfolded state. Figure 2

[0062] Figure 10 Fig. 5 shows a schematic view of a hinge mechanism in a folded state. Figure 2

[0063] Figure 11 Fig. 6 shows a schematic view of a hinge mechanism in an unfolded state. Figure 2

[0064] Figure 12 Fig. 7 shows a schematic view of a hinge mechanism in a folded state. Figure 2

[0065] Figure 13 Fig. 8 shows a schematic view of a hinge mechanism in an unfolded state. Figure 12

[0066] Figure 14 Fig. 9 shows a schematic view of a hinge mechanism in a folded state. Figure 4

[0067] Figure 15 Fig. 10 shows a schematic view of a hinge mechanism in an unfolded state. Figure 11

[0068] Figure 16 Fig. 11 shows a schematic view of the internal hardware structure of a foldable electronic device.

[0069] BRIEF DESCRIPTION OF THE DRAWINGS

[0070] ​​​​​​​​​​10, foldable electronic device; 11, processing component; 12, memory; 13, power supply component; 14, multimedia component; 15, audio component; 16, input / output interface; 17, sensor component; 18, communication component; 10a, flexible display screen; 10b, hinge mechanism; 101, containing space; 10c, shell body; 100, base component; 110, arc-shaped guide slot; 200, bearing component; 210, connecting piece; 201, bearing surface; 202, bottom surface; 211, first matching part; 2111, first sliding slot; 212, second matching part; 2121, second sliding slot; 213, second limiting part; 2131, second notch; 214, groove; 2141, pressure bearing surface; 2142, first limiting surface; 2143, second limiting surface; 2144, anti-disengagement slot; 220, support piece; 300, hinge component; 300a, first rotation center; 300b, second rotation center; 300c, third rotation center; 300d, first connecting line; 310, first connecting rod; 311, third rotation part; 3111, third through hole; 312, fourth rotation part; 3121, arc-shaped guide body; 313, plate body; 314, guide rail body; 320, second connecting rod; 321, first connecting body; 301, first side; 302, second side; 306, front surface; 307, back surface; 3211, first guide part; 304, first rail body; 3041, first end part; 305, second rail body; 3051, second end part; 308, stop part; 3081, limiting slot; 3212, fifth rotation part; 303, matching hole; 3213, second guide part; 3214, first limiting part; 309, limiting protrusion; 3001, first matching surface; 3002, second matching surface; 3003, third matching surface; 3004, anti-disengagement part; 322, second connecting body; 323, limiting body; 330, third connecting rod; 331, second rotation part; 3311, second through hole; 3312, limiting protrusion; 340, transmission piece; 341, pressure resisting protrusion; 342, first notch; 343, first rotation part; 3431, first through hole; 344, guide slot; 345, first guide surface; 346, rotation protrusion; 350, first rotation shaft; 400, damping component; 500, synchronization component. DETAILED DESCRIPTION

[0071] In order to make the objectives, technical solutions and advantages of the present disclosure clearer, further detailed description will be given to the present disclosure in combination with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure, and do not limit the protection scope of the present disclosure.

[0072] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the disclosure.

[0073] Electronic devices such as mobile phones and tablets have become an indispensable technology product in people's life, learning and entertainment process, bringing many conveniences and pleasures to people's life. With the development of the diversification of electronic device functions, there are various types and brands of electronic devices, which makes consumers have many choices for electronic devices. Only improving the functional characteristics of electronic devices cannot meet people's requirements for electronic devices, and the aesthetic appearance of the shell structure of the electronic device also becomes an important factor affecting the competitiveness of electronic products. In electronic devices with similar functions or performance, the better the durability of the electronic device, the more attractive it is to consumers to purchase.

[0074] With the increasing maturity of the application of flexible display screens, their application on electronic devices is becoming more and more widespread. The foldable electronic device using a flexible display screen can fold the flexible display screen for convenient carrying; and the flexible display screen has a larger display area when unfolded, and thus is increasingly favored by consumers.

[0075] In the related art, a mechanical hinge mechanism is needed to fold the flexible display screen to ensure that no failure occurs during normal use of the flexible display screen, and the normal bending of the flexible display screen is not affected. At the same time, the hinge mechanism cannot damage the flexible display screen. However, when the traditional hinge mechanism is in a folded state, there will be a movable gap between some parts. This will cause the foldable electronic device to easily produce abnormal noise in the folded state, affecting the user experience. For example, when the hinge mechanism is in a folded state, there is no limit between some connecting rods, and relative movement will occur. In this way, the foldable electronic device is easy to produce abnormal noise due to the relative movement between the connecting rods during carrying. In addition, it will also accelerate the wear between the connecting rods, affecting the durability of the hinge mechanism.

[0076] Based on this, the present disclosure provides a hinge mechanism. The hinge mechanism is not prone to shaking, which is conducive to improving the user experience of the foldable electronic device.

[0077] In order to better understand the hinge mechanism of the present disclosure, the foldable electronic device to which the hinge mechanism is applied is described.

[0078] As Figure 1As shown, in some embodiments of the present disclosure, a foldable electronic device 10 is provided, comprising a flexible display screen 10a, a hinge mechanism 10b, and a shell body 10c, the shell body 10c is fixedly connected with part of the hinge mechanism 10b, at least part of the flexible display screen 10a covers the hinge mechanism 10b and the shell body 10c, and is folded or unfolded through the hinge mechanism 10b. In this way, the folding or unfolding of the flexible display screen 10a is realized through the movement of the shell body 10c with the hinge mechanism 10b.

[0079] In combination with the above, Figures 2 to 5 As shown, the hinge mechanism 10b comprises a base frame assembly 100, a bearing assembly 200, and a hinge component 300. The bearing assembly 200 comprises a connecting piece 210 connected with the shell body 10c. The hinge component 300 comprises a first connecting rod 310, a second connecting rod 320, a third connecting rod 330, and a transmission piece 340. One end of the first connecting rod 310 is rotationally connected with the base frame assembly 100. The second connecting rod 320 is rotationally connected with the base frame assembly 100. The second connecting rod 320 is rotationally connected with one end of the transmission piece 340. The second connecting rod 320 is slidingly connected with the connecting piece 210. One end of the third connecting rod 330 is rotationally connected with the other end of the transmission piece 340 and the other end of the first connecting rod 310. The other end of the third connecting rod 330 is rotationally connected with the connecting piece 210. The transmission piece 340 and one of the first connecting rod 310 are provided with a pressing protrusion 341. When the hinge mechanism 10b is in a folded state, the connecting piece 210 and the base frame assembly 100 are arranged at an angle, the pressing protrusion 341 is in abutment with the other one, so as to press the transmission piece 340 against the first connecting rod 310.

[0080] Thus, when the foldable electronic device 10 is in use, the hinge mechanism 10b can drive the shell body 10c to rotate via the support component 200, thereby enabling the flexible display screen 10a to be folded or unfolded (e.g., switching between an unfolded state and a folded state). When the flexible display screen 10a is in the unfolded state, the hinge mechanism 10b is also in the unfolded state, supporting the flexible display screen 10a via the support component 200 and the base frame component 100. During the process of the hinge mechanism 10b switching from the unfolded state to the folded state, the second link 320 can rotate relative to the base frame component 100, driving the connector 210 to slide along the set direction of the second link 320. During this process, the second link 320 drives the first link 310 and the third link 330 to rotate via the transmission component 340, thereby limiting the swing direction of the connector 210. When the hinge mechanism 10b is in the folded state, the connector 210 and the base frame assembly 100 are set at an angle, and the pressing protrusion 341 abuts against the other, so that the transmission member 340 presses against the first link 310, making the transmission member 340, the first link 310 and the third link 330 fit tightly, making it less likely to rotate and thus less likely to produce abnormal noise. The transmission member 340 does not easily rotate with the first link 310 and the third link 330, reducing wear, improving the durability of the hinge mechanism 10b, and also better protecting the flexible display screen 10a in the folded state.

[0081] Thus, when the hinge mechanism 10b is folded, the linkages fit tightly together, making it less prone to making abnormal noises, which in turn helps to improve the user experience of the foldable electronic device 10.

[0082] like Figures 3 to 5 As shown, in some embodiments, the support assembly 200 further includes a support member 220 rotatably connected to the connector 210. When the hinge mechanism 10b is in the folded state, the support member 220 is disposed abutting against the connector 210. When the hinge mechanism 10b is in the unfolded state, at least a portion of the support member 220 is disposed away from the connector 210 to cooperate with the base frame assembly 100 to form a support structure. Thus, a three-stage linkage mechanism is formed by the cooperation of the transmission component 340, the first link 310, the second link 320, and the third link 330. During the process of restricting the swing of the connector 210 by the first link 310 and the third link 330, the connector 210 and the support component 220 can move further away from the support component 220. This makes the teardrop-shaped receiving space 101 formed by the hinge mechanism 10b in the folded state more elongated, providing more precise bending space for the flexible display screen 10a to bend, and better fitting the flexible display screen 10a, thus protecting the flexible display screen 10a in the folded state.

[0083] In other embodiments, the first link 310 assembly further includes at least one link disposed between the first link 310 and the third link 330 to cooperate to form a four-stage link mechanism, a five-stage link mechanism, or the like.

[0084] In the projection plane of the base assembly 100 in the length direction, when the hinge mechanism 10b is in the folded state, the width of the accommodation space 101 gradually increases from the base assembly 100 to the other end of the first link 310, and gradually decreases from one end of the third link 330 to the other end of the third link 330. In this way, the accommodation space 101 first gradually increases to reduce stress concentration. The width of the accommodation space 101 gradually decreases from one end of the third link 330 to the other end of the third link 330, so that the flexible display 10a gradually fits away from the base assembly 100. That is, it is beneficial to realize the thinness of the foldable electronic device 10, and also makes the flexible display 10a bend smoothly, improves the bending service life of the flexible display 10a.

[0085] Optionally, the support 220 includes a floating plate. In this way, the thickness of the hinge mechanism 10b is smaller by using the floating plate, which is beneficial to realize the thinness of the foldable electronic device 10.

[0086] It should be noted that when the hinge mechanism 10b is in the folded state, the connecting piece 210 is arranged at an angle with the base assembly 100, and the "angle" is greater than zero. Optionally, the width direction of the connecting piece 210 is perpendicular to the width direction of the base assembly 100, and the connecting piece 210 is arranged above the base assembly 100.

[0087] When the hinge mechanism 10b is in the unfolded state, the connecting piece 210 is arranged in the same direction as the base assembly 100. That is, the width direction of the connecting piece 210 and the width direction of the base assembly 100 are in the same direction, so that the support 220 cooperates with the base assembly 100 to form a support structure for supporting the flexible display 10a.

[0088] In order to better understand the technical solutions of the present disclosure, as shown in Figure 2 and Figure 5 The length direction of the connecting piece 210 and the length direction of the base assembly 100 are set as the X-axis direction, the width direction of the connecting piece 210 and the width direction of the base assembly 100 are set as the Y-axis direction, and the thickness direction of the connecting piece 210 and the thickness direction of the base assembly 100 are also set as the Z-axis direction. When the foldable electronic device 10 is in the unfolded state, the thickness direction is also the Z-axis direction.

[0089] As shown in Figure 5As shown, in some embodiments, when the hinge mechanism 10b is in the folded state, the abutting protrusion 341 abuts against the other one to push the portion of the first connecting rod 310 towards the center line direction of the base assembly 100. In this way, the hinge mechanism 10b is in the folded state, and the abutting protrusion 341 is pressed against the other one to push the portion of the first connecting rod 310 towards the accommodating space 101, so that the transmission member 340 is pressed and fitted between the first connecting rod 310 and the third connecting rod 330, and rotation is not easy to occur.

[0090] In some embodiments, the other end of the third connecting rod 330 is rotationally connected with the connecting member 210 and has a first rotation center 300a, the other end of the transmission member 340 is rotationally connected with the other end of the first connecting rod 310 and has a second rotation center 300b, and one end of the transmission member 340 is rotationally connected with the second connecting rod 320 and has a third rotation center 300c. When the hinge mechanism 10b is in the folded state, the first rotation center 300a and the third rotation center 300c form a first connection line 300d, and the second rotation center 300b is arranged on the inner side of the first connection line 300d, so that the abutting protrusion 341 pushes the first connecting rod 310. In this way, it can be ensured that when the hinge mechanism 10b is in the folded state, the abutting protrusion 341 is pressed against the other one to push the portion of the first connecting rod 310 towards the accommodating space 101.

[0091] Optionally, in some embodiments, the abutting protrusion 341 is fixedly arranged on the transmission member 340. In this way, the manufacturing difficulty of the transmission member 340 is not increased, and the assembly of the hinge assembly 300 is not affected, and the implementation is easy.

[0092] In some embodiments, the transmission member 340 is provided with a first gap 342, and the portion of the first connecting rod 310 is arranged in the first gap 342 and rotationally connected with the portion of the transmission member 340. The abutting protrusion 341 is fixedly arranged on the transmission member 340 and arranged close to the edge of the first gap 342. In this way, the portion of the first connecting rod 310 is accommodated by the first gap 342, so that the first connecting rod assembly is tightly fitted and compact in structure.

[0093] As shown in Figure 6 and Figure 9 In some embodiments, the other end of the transmission member 340 includes two first rotation portions 343 arranged at intervals to form the first gap 342, the first rotation portion 343 is rotationally connected with the other end of the first connecting rod 310 and one end of the third connecting rod 330, and the abutting protrusion 341 is arranged between the two first rotation portions 343. In this way, the portion of the first connecting rod 310 is accommodated by the first gap 342, so that the transmission member 340 is tightly fitted with the first connecting rod 310 and does not interfere with each other.

[0094] As shown in Figure 7 and Figure 9As shown in FIG. 3, in some embodiments, one end of the third connecting rod 330 is provided with a second rotating part 331, the other end of the first connecting rod 310 is provided with a third rotating part 311, the third rotating part 311 is rotationally connected with the second rotating part 331, and is embedded in the first gap 342 and rotationally connected with the first rotating part 343, respectively. In this way, part of the third connecting rod 330 can also be accommodated through the first gap 342, so that the third rotating part 311 can be embedded in the first gap 342 after being rotationally connected with the second rotating part 331, and is rotationally connected with the first rotating part 343, respectively, thereby improving the compactness of the hinge component 300.

[0095] As shown in FIG. 3, Figure 4 and Figures 6 to 9 As shown in FIG. 3, in some embodiments, the hinge component 300 further includes a first rotating shaft 350, the first rotating part 343 is provided with a first through hole 3431, the second rotating part 331 is provided with a second through hole 3311, and the third rotating part 311 is provided with a third through hole 3111. The second rotating part 331 is nested with the third rotating part 311, so that the first through hole 3431, the second through hole 3311 and the third through hole 3111 are arranged along the same axis and are respectively sleeved with the first rotating shaft 350. In this way, the coaxial rotation of the first rotating part 343, the second rotating part 331 and the third rotating part 311 can be realized by sleeving the first rotating shaft 350 with the first through hole 3431, the second through hole 3311 and the third through hole 3111, thereby improving the convenience of assembling the hinge component 300.

[0096] Further, as shown in FIG. 3, Figure 5 , Figure 8 and Figure 9 As shown in FIG. 3, in some embodiments, the first connecting rod 310 includes a fourth rotating part 312 rotationally connected with the base frame assembly 100 and a plate body 313 fixed between the fourth rotating part 312 and the third rotating part 311. When the hinge mechanism 10b is in the folded state, the plate body 313 abuts against the abutting convex part 341. In this way, the abutting between the plate body 313 and the abutting convex part 341 is reliable and easy to implement by cooperation between the plate body 313 and the abutting convex part 341.

[0097] As shown in FIG. 3, Figure 5 In some embodiments, the fourth rotating part 312 includes an arc-shaped guide body 3121, and the base frame assembly 100 is provided with an arc-shaped guide groove 110 in guiding cooperation with the arc-shaped guide body 3121. In this way, the thickness space of the base frame assembly 100 can be fully utilized to accommodate the arc-shaped guide body 3121 by providing the arc-shaped guide groove 110, so that the thickness of the hinge mechanism 10b can be made thinner, which can adapt to the development of thin and light foldable electronic devices 10.

[0098] In some embodiments, the second link 320 includes a first connecting body 321 slidably connected to the connecting member 210, a second connecting body 322 rotatably connected to the base frame assembly 100, and a limiting body 323 fixed between the first connecting body 321 and the second connecting body 322. The transmission member 340 is provided with a first guide surface 345. When the hinge mechanism 10b is in the folded state, the first guide surface 345 is disposed between the limiting body 323 and the first link 310, and forms a limiting surface with the limiting body 323 and a portion of the first link 310. Thus, by providing the first guide surface 345 between the limiting body 323 and the first link 310, the transition between the first link 310 and the limiting body 323 is as smooth as possible along the length direction of the base frame assembly 100, preventing the flexible display screen 10a from being pushed up. This facilitates the use of the limiting surface to restrict the movement of the flexible display screen 10a, thereby better protecting the flexible display screen 10a.

[0099] It should be noted that the first guide surface 345 includes a guide arc surface or a guide slope surface.

[0100] Optionally, in some embodiments, the first guide surface 345 includes a guide ramp that extends obliquely from the first link 310 toward the limiting body 323 when the hinge mechanism 10b is in the folded state. This facilitates manufacturing.

[0101] like Figure 10 As shown, in some embodiments, one of the transmission member 340 and the first connecting rod 310 is provided with a guide rail 314, and the other is provided with a guide groove 344 that guides and cooperates with the guide rail 314. The cooperation between the guide rail 314 and the guide groove 344 makes the rotation of the transmission member 340 and the first connecting rod 310 more stable, effectively reducing shaking.

[0102] Optionally, in some embodiments, the guide groove 344 includes two and is disposed on the transmission member 340, and the pressing protrusion 341 is disposed between the two guide grooves 344.

[0103] In combination with any of the above embodiments, such as Figures 11 to 13 As shown, in some embodiments, the first connecting body 321 includes a first side 301 and a second side 302 disposed opposite to the first side 301. The first side 301 is provided with a first guide portion 3211 slidably connected to the connecting member 210 and a fifth rotating portion 3212 rotatably connected to one end of the transmission member 340. The fifth rotating portion 3212 is disposed between the first guide portion 3211 and the second connecting body 322. The second side 302 also includes a second guide portion 3213 slidably connected to the connecting member 210. The engagement length between the second guide portion 3213 and the connecting member 210 is greater than the engagement length between the first guide portion 3211 and the bearing assembly 200.

[0104] In this way, when the foldable electronic device 10 is in use, the hinge mechanism 10b can drive the shell body 10c to rotate through the bearing assembly 200 to achieve folding or unfolding (for example, switching between the unfolded state and the folded state) of the flexible display 10a. When the flexible display 10a is in the unfolded state, the hinge mechanism 10b is also in the unfolded state and supports the flexible display 10a through the bearing assembly 200 and the base assembly 100. The hinge mechanism 10b can switch from the unfolded state to the folded state and make the flexible display 10a in the folded state. In the process of rotating the second connecting rod 320 relative to the base assembly 100, the second connecting rod 320 can drive the connecting piece 210 to rotate and make the first connecting body 321 slide relative to the connecting piece 210. The third connecting rod 330 is rotationally connected with the first connecting body 321 through the fifth rotating part 3212, and the first guide part 3211 and the second guide part 3213 are respectively slidably connected with the bearing assembly 200. Moreover, part of the second guide part 3213 is arranged opposite to the fifth rotating part 3212 along the direction from the first side 301 to the second side 302. That is, the second guide part 3213 is as long as possible and does not interfere with the fifth rotating part 3212, so that the cooperation length of the second guide part 3213 with the bearing assembly 200 is greater than the cooperation length of the first guide part 3211 with the bearing assembly 200, and the sliding cooperation between the second guide part 3213 and the bearing assembly 200 has a greater coincidence degree when the hinge mechanism 10b is in the folded state, so that the connection strength between the second connecting rod 320 and the bearing assembly 200 is good. In this way, it can effectively avoid the shaking of the hinge mechanism 10b in the folded state due to the small coincidence amount between the second connecting rod 320 and the bearing assembly 200, and is beneficial to improve the use experience of the foldable electronic device 10.

[0105] It can be understood that the second guide part 3213 has a good coincidence degree with the bearing assembly 200, and the first connecting body 321 does not have a large gap with the bearing assembly 200 due to the fifth rotating part 3212 arranged on the first side 301, which does not affect the cooperation tightness between the two.

[0106] It should be noted that the first side 301 is generally considered as the side close to the third connecting rod 330, which facilitates the rotational connection of the fifth rotating part 3212 with the third connecting rod 330.

[0107] In addition, the "cooperation length" should be understood in a broad sense. In the present disclosure, the contact length of the sliding cooperation between the guide part and the bearing assembly 200 is included. That is, in the thickness direction of the bearing assembly 200, the coincidence degree of the second guide part 3213 with the bearing assembly 200 is greater than the coincidence degree of the first guide part 3211 with the bearing assembly 200 when the hinge mechanism 10b is in the folded state.

[0108] Specifically, as Figure 13As shown, the fitting length of the first guiding part 3211 with the bearing assembly 200 is L1, and the fitting length of the second guiding part 3213 with the bearing assembly 200 is L2, where L2>L1.

[0109] It should be noted that when the flexible display screen 10a is in the unfolded state, the hinge mechanism 10b is in the unfolded state and can support the effective display screen. When the flexible display screen 10a is in the folded state, the hinge mechanism 10b is in the folded state.

[0110] It should be noted that the specific implementation mode of the rotation connection between the fifth rotating part 3212 and the transmission member 340 can be various, including but not limited to hinging, shafting, etc.

[0111] Referring to Figure 6 and Figure 14 As shown, in some embodiments, the fifth rotating part 3212 and one of the transmission member 340 are provided with a rotating protrusion 346, and the other is provided with a fitting hole 303 that rotationally fits with the rotating protrusion 346. In this way, the rotation connection between the fifth rotating part 3212 and the transmission member 340 is realized by the rotation fitting of the rotating protrusion 346 and the fitting hole 303, so that the connection between the two is more compact and easy to implement.

[0112] The rotating protrusion includes a shaft body, a protruding rod, etc.

[0113] Optionally, as shown in Figure 1 and Figure 14 As shown, in some embodiments, the transmission member 340 is provided with a rotating protrusion 346, and the first side 301 is provided with a fitting hole 303. In this way, the fitting hole 303 is arranged on the first side 301 to facilitate the sliding connection between the first guiding part 3211 and the connecting member 210, and the structure is more compact. The transmission member 340 is provided with the rotating protrusion 346, which is convenient to realize by the protruding rotating shaft, and is also easy to implement. Further, the hinge mechanism 10b is easy to manufacture and has low manufacturing cost.

[0114] As shown in Figure 14 Optionally, the fitting hole 303 is a blind hole. In this way, the rotating protrusion does not protrude to the second side 302 through the first connecting body 321, and further does not interfere with the sliding connection between the second guiding part 3213 and the bearing assembly 200. In addition, the second guiding part 3213 can also be arranged in the depth extension direction of the fitting hole 303, so as to ensure the extension length of the second guiding part 3213, so as to have good coincidence with the bearing assembly 200.

[0115] In other embodiments, the rotating protrusion is arranged on the fifth rotating part 3212, and the fitting hole 303 is arranged on the transmission member 340.

[0116] In combination with any of the above embodiments, as shown in Figure 13As shown, in some embodiments, the second guiding portion 3213 is arranged opposite to the fifth rotating portion 3212 along the direction from the first side 301 to the second side 302, so that the length of the second guiding portion 3213 is greater than the length of the first guiding portion 3211. In this way, relative to the first side 301, the area where the fifth rotating portion 3212 is arranged on the second side 302, the second guiding portion 3213 can also be arranged, so that the length of the second guiding portion 3213 is greater than the length of the first guiding portion 3211, and further so that the length of the second guiding portion 3213 cooperating with the bearing assembly 200 is greater than the length of the first guiding portion 3211 cooperating with the bearing assembly 200.

[0117] In particular, when the hinge mechanism 10b is in the folded state and the first guiding portion 3211 is separated from the bearing assembly 200, the length of the second guiding portion 3213 cooperating with the bearing assembly 200 is greater than the length of the first guiding portion 3211 cooperating with the bearing assembly 200, so that the second connecting rod 320 still has good connection strength with the bearing assembly 200, so that the hinge mechanism 10b in the folded state is not prone to shaking, and is not prone to problems such as jamming.

[0118] In combination with the foregoing embodiments of the connecting piece 210, as Figure 13 As shown, in some embodiments, the connecting piece 210 includes a first cooperating portion 211 that is in sliding cooperation with the first guiding portion 3211, and a second cooperating portion 212 that is in sliding cooperation with the second guiding portion 3213. When the bearing assembly 200 is in the folded state, the length of the second guiding portion 3213 cooperating with the second cooperating portion 212 is greater than the length of the first guiding portion 3211 cooperating with the first cooperating portion 211. In this way, the thickness space of the connecting piece 210 is fully utilized to arrange the first cooperating portion 211 and the second cooperating portion 212, so that the length of the second guiding portion 3213 cooperating with the second cooperating portion 212 is greater than the length of the first guiding portion 3211 cooperating with the first cooperating portion 211, so that the first connecting body 321 can have good coincidence with the connecting piece 210 even if the fifth rotating portion 3212 is arranged, so that the second connecting rod 320 has good connection strength with the connecting piece 210.

[0119] In addition, the thickness space is utilized to accommodate part of the first connecting body 321, so that the structure of the hinge mechanism 10b is more compact.

[0120] As Figure 13As shown, in some embodiments, the second guiding portion 3213 and the second cooperating portion 212 are arranged opposite to the fifth rotating portion 3212 along the direction from the first side 301 to the second side 302, so that the length of the second guiding portion 3213 is greater than the length of the first guiding portion 3211, and the length of the second cooperating portion 212 is greater than the length of the first cooperating portion 211. In this way, relative to the first side 301, the area where the fifth rotating portion 3212 is arranged on the first side 301, the second guiding portion 3213 can also be arranged on the second side 302, so that the length of the second guiding portion 3213 is greater than the length of the first guiding portion 3211. And the second cooperating portion 212 is also correspondingly lengthened, so that the length of the second guiding portion 3213 and the cooperating portion 212 of the bearing assembly 200 is greater than the length of the first guiding portion 3211 and the cooperating portion 211 of the bearing assembly 200.

[0121] In particular, when the hinge mechanism 10b is in the folded state, the first guiding portion 3211 is disconnected from the second guiding portion 3213 of the connecting piece 210, the length of the second guiding portion 3213 and the second cooperating portion 212 is greater than the length of the first guiding portion 3211 and the first cooperating portion 211, so that the second connecting rod 320 and the bearing assembly 200 still have good connection strength, so that the hinge mechanism 10b in the folded state is not prone to shaking, and is not prone to problems such as jamming.

[0122] Specifically, as shown, Figure 13 the length of the first guiding portion 3211 and the first cooperating portion 211 is L1, and the length of the second guiding portion 3213 and the second cooperating portion 212 is L2, where L2>L1.

[0123] Specifically, 1.1L1≤L2≤2.5L1.

[0124] Alternatively, L2=1.1L1, 1.2L1, 1.3L1, 1.4L1, 1.5L1, 1.6L1, 1.7L1, 1.8L1, 1.85L11.1L1, 1.55L1, 2L1.

[0125] In some embodiments, one of the first guiding portion 3211 and the first cooperating portion 211 is provided with a first sliding rail, and the other of the first guiding portion 3211 and the first cooperating portion 211 is provided with a first sliding groove 2111 that is in sliding cooperation with the first sliding rail. In this way, through the cooperation of the first sliding groove 2111 and the first sliding rail, the connecting piece 210 and the first connecting body 321 are closely cooperated, which is beneficial to reduce the thickness of the hinge mechanism 10b.

[0126] In some embodiments, the second guide portion 3213 is provided with a second sliding rail, and one of the second cooperating portions 212 is provided with a second sliding groove 2121 which is in sliding cooperation with the second sliding rail. In this way, the connection member 210 is tightly cooperated with the first connecting body 321 through the cooperation of the second sliding groove 2121 and the second sliding rail, which is conducive to reducing the thickness of the hinge mechanism 10b.

[0127] It should be noted that the specific shape of the first sliding rail and the second sliding rail can be various, such as rectangular, trapezoidal, partial circular or partial elliptical cross section, etc., which can meet the use requirements and will not be limited here.

[0128] In combination with the above embodiments of the first sliding rail, as shown in Figure 13 In some embodiments, the first guide portion 3211 is provided with a first sliding rail, and the first sliding rail includes a first rail body 304, a second rail body 305, and a stop portion 308 which is arranged at intervals from the fifth rotating portion 3212. The first rail body 304 is arranged between the fifth rotating portion 3212 and the stop portion 308, and the second rail body 305 is arranged at intervals from the first rail body 304 on both sides of the stop portion 308. When the bearing assembly 200 is in the folded state, the stop portion 308 is in stop cooperation with the third connecting rod 330 to limit the bearing assembly 200 from continuing to rotate in the folding direction of the hinge mechanism 10b. In this way, the stop cooperation between the stop portion 308 and the third connecting rod 330 limits the bearing assembly 200 from continuing to rotate in the folding direction of the hinge mechanism 10b, avoiding the hinge mechanism 10b from being folded too much to cause damage to the parts or failure due to separation of related parts.

[0129] The specific implementation mode of the stop portion 308 and the third connecting rod 330 can be various, including but not limited to the limiting clamping cooperation of a clamping body and a clamping hole, the blocking cooperation between a convex body and a blocking block, the limiting cooperation between a limiting protrusion 309 and a limiting recess, etc.

[0130] Optionally, as shown in Figure 13 and Figure 14 In some embodiments, the third connecting rod 330 is provided with a limiting convex body 3312, and the stop portion 308 is provided with a limiting groove 3081. When the bearing assembly 200 is in the folded state, at least part of the limiting convex body 3312 is clamped in the limiting groove 3081 to enable the stop cooperation between the stop portion 308 and the third connecting rod 330. In this way, the rotation connection between the third connecting rod 330 and the bearing assembly 200 is achieved, and the stop cooperation between the stop portion 308 and the third connecting rod 330 is achieved through the cooperation between the limiting convex body 3312 provided on the third connecting rod 330 and the limiting groove 3081, which is compact in structure and is conducive to realizing the miniaturization of the hinge mechanism 10b and the foldable electronic equipment 10.

[0131] Further, as shown inFigure 14 As shown in some embodiments, the first rail body 304 includes a first end portion 3041 arranged at the limiting groove 3081, and at least one of the first end portion 3041 and the outer surface of the limiting protrusion 3312 is provided with a guide surface for guiding the limiting protrusion 3312 into the limiting groove 3081. In this way, the limiting protrusion 3312 can be better guided into the limiting groove 3081 by the guide surface, so that the limiting protrusion 3312 is limitedly matched with the limiting groove 3081 to achieve the stop matching of the stop portion 308 and the third connecting rod 330. This makes the stop movement of the hinge mechanism 10b in the folded state more smooth, and the operation of the hinge mechanism 10b more smooth.

[0132] The guide surface includes a guide inclined surface or a guide arc surface.

[0133] Optionally, as Figure 14 shown in some embodiments, the second rail body 305 includes a second end portion 3051 arranged opposite to the first end portion 3041; when the bearing assembly 200 is in the folded state, the second end portion 3051 abuts against part of the limiting protrusion 3312 to make the limiting protrusion 3312 stop matched with the stop portion 308. In this way, the second end portion 3051 abuts against part of the limiting protrusion 3312 to make the limiting protrusion 3312 stop matched with the stop portion 308, which can further improve the reliability of the stop matching of the stop portion 308 and the third connecting rod 330.

[0134] It should be noted that the specific structure of the limiting protrusion 3312 can be various. For example, the limiting protrusion 309 is in the shape of a convex, a rod, a column, a block, etc.

[0135] In combination with any of the above embodiments of the connecting piece 210, as Figure 14 and Figure 15 shown in some embodiments, the bearing assembly 200 has a supporting state for cooperating with the base frame assembly 100 to form a support surface; when the bearing assembly 200 is in the supporting state, the second connecting rod 320 is stop matched with the bearing assembly 200 to make the bearing assembly 200 cooperate with the base frame assembly 100 to form the support surface. In this way, by stop matching the second connecting rod 320 with the bearing assembly 200 to make the bearing assembly 200 cooperate with the base frame assembly 100 to form the support surface, the flexible display screen 10a can be reliably supported, avoiding that the hinge mechanism 10b is over-extended to cause damage to parts or separation of related parts to fail, or even damage the flexible display screen 10a.

[0136] It should be noted that the implementation of the stop matching of the second connecting rod 320 with the bearing assembly 200 can be various, for example, the second connecting body 322 and the connecting piece 210 are provided with a limiting structure to avoid over-extension of the hinge mechanism 10b, so that the bearing assembly 200 cooperates with the base frame assembly 100 to form a reliable support surface.

[0137] As Figure 14 and Figure 15 shown, in an example, the first connecting body 321 further comprises a first limiting portion 3214, and the connecting piece 210 further comprises a second limiting portion 213. When the bearing assembly 200 is in the supporting state, the first limiting portion 3214 abuts against the second limiting portion 213, so as to stop the second connecting rod 320 and the connecting piece 210. In this way, by abutting against the first limiting portion 3214 and the second limiting portion 213, the second connecting rod 320 and the connecting piece 210 are stopped, so as to avoid over-expansion of the hinge mechanism 10b, and to form a reliable supporting surface by cooperation of the bearing assembly 200 and the base frame assembly 100.

[0138] Optionally, in some embodiments, the first limiting portion 3214 is arranged between the first guide portion 3211 and the second guide portion 3213, and the second limiting portion 213 is arranged between the first fitting portion 211 and the second fitting portion 212. In this way, the space in the width direction of the first connecting body 321 can be fully utilized to arrange the first limiting portion 3214, and the length direction of the connecting piece 210 can be utilized to arrange the second limiting portion 213, which is easy to implement.

[0139] Optionally, in some embodiments, the first limiting portion 3214 is arranged at the first guide portion 3211, and the second limiting portion 213 is arranged at the first fitting portion 211. In this way, the space of the first side 301 of the first connecting body 321 can be fully utilized to arrange the first limiting portion 3214, and the thickness direction of the connecting piece 210 can be utilized to arrange the second limiting portion 213, so as to make the structure of the hinge mechanism 10b compact.

[0140] Optionally, in some embodiments, the first limiting portion 3214 is arranged at the second guide portion 3213, and the second limiting portion 213 is arranged at the second fitting portion 212. In this way, the space of the second side 302 of the first connecting body 321 can be fully utilized to arrange the first limiting portion 3214, and the thickness direction of the connecting piece 210 can be utilized to arrange the second limiting portion 213, so as to make the structure of the hinge mechanism 10b compact.

[0141] On the basis of any of the above embodiments of the first limiting portion 3214, as Figure 14 and Figure 15 shown, in some embodiments, one of the first limiting portion 3214 and the second limiting portion 213 is provided with a limiting protrusion 309, and the other abuts against the limiting protrusion 309 when the hinge mechanism 10b is in the expanded state. In this way, by abutting against the limiting protrusion 309, the stopping is more reliably achieved, and over-expansion of the hinge mechanism 10b is avoided, so as to form a reliable supporting surface by cooperation of the bearing assembly 200 and the base frame assembly 100.

[0142] It should be noted that the limiting protrusion 309 can have various specific structures. For example, the limiting protrusion 309 can be convex, hemispherical, columnar, block-shaped, etc.

[0143] like Figure 14 as well as Figure 15 As shown, in some embodiments, the connector 210 includes a bearing surface 201 and a bottom surface 202 opposite to the bearing surface 201. A second limiting portion 213 is disposed between the bearing surface 201 and the bottom surface 202. The second connecting rod 320 includes a front surface 306 arranged in the same direction as the support surface and a back surface 307 opposite to the front surface 306. A limiting protrusion 309 is disposed on the back surface 307. Thus, the limiting protrusion 309 is disposed on the back surface 307 of the second connecting rod 320, which does not affect the fit between the front surface 306 and the bearing surface 201, so as to better support the flexible display screen 10a.

[0144] like Figure 15 As shown, in some embodiments, on the bottom surface 202, the first mating portion 211 and the second mating surface 3002 extend toward the base frame assembly 100, forming a second notch 2131, and a second limiting portion 213 is disposed on the side wall of the second notch 2131. When the bearing assembly 200 is in a supported state, the limiting protrusion 309 is disposed in the second notch 2131 and abuts against the second limiting portion 213. Thus, when the bearing assembly 200 is in a non-supported state, the limiting protrusion 309 is avoided by providing the second notch 2131, making the connection between the first connecting body 321 and the connecting member 210 tighter. When the bearing assembly 200 is in a supported state, the limiting protrusion 309 is disposed in the second notch 2131 and abuts against the second limiting portion 213. By making full use of the width space of the connecting member 210 to set the second limiting portion 213, the overall hinge mechanism 10b becomes more compact.

[0145] Based on any of the above embodiments of the connector, such as Figure 2 As shown, in some embodiments, the hinge mechanism further includes a damping component 400, which is damped and rotatably engaged with at least one of the first link, the second link, the third link, and the transmission component. Thus, by providing the damping component, the link components can be damped and rotatably connected to the base frame assembly, preventing the foldable electronic device from easily rotating, facilitating the support or restriction of the flexible display screen, and making it convenient to use.

[0146] It should be noted that the damping component can be installed on any rotating component in the hinge mechanism, as long as it meets the above requirements.

[0147] It should be noted that the damping assembly can also have other implementations, for example, using a friction plate to increase the rotational friction of the connecting rod assembly, or using an elastic member to increase the rotational resistance of the connecting rod assembly, or using a magnetic attraction member to increase the rotational resistance of the connecting rod assembly, and the like.

[0148] As shown in FIG. 3, Figure 2 In some embodiments, the hinge component 300 and the carrier assembly 200 correspond to a first group, and at least two first groups are arranged on both sides of the base frame assembly 100. The hinge mechanism 10b further includes a synchronization assembly 500, which synchronously connects the connecting rod components arranged on both sides of the base frame assembly 100. In this way, the synchronization assembly 500 is used to realize the synchronous rotation of the hinge mechanism 10b on both sides of the base frame assembly 100, so as to realize the folding and unfolding of the flexible display screen 10a.

[0149] The synchronization assembly 500 can have various implementations, including but not limited to the gear transmission group described above, and other synchronous rotation implementations, such as a belt wheel mechanism, a chain wheel mechanism, and the like.

[0150] In combination with any of the above embodiments, in some embodiments, the hinge mechanism 10b can hover at any angle in the range of 45°-135°. In this way, the hinge mechanism 10b can hover in the range of 45°-135°, which is defined as the hovering state. The hinge mechanism 10b can realize stop immediately after rotation in the hovering state, which is convenient for users to use the foldable electronic device 10 at multiple angles and improves the use experience of the foldable electronic device 10.

[0151] In combination with any of the above embodiments of the second connecting rod 320, the hovering rotation range of the second connecting rod 320 is A, and A≥50°. In this way, the rotation range can be flexibly set according to actual needs. For example, A=50°, 60°, 90°, 100°, 110°, 120°, 130°, 150°, and the like.

[0152] In some embodiments, the second connecting rod 320 can hover and rotate, so that the hinge mechanism 10b can hover at any angle in the range of 45°-135°. At this time, the second connecting rod 320 can also be referred to as a synchronization rod.

[0153] Optionally, in some embodiments, the base frame assembly 100 includes a base frame body and a decorative shell (not shown) fixedly connected with the base frame body, and the length direction of the decorative shell is arranged in the same direction as the length direction of the support member 220. In this way, the decorative shell can not only protect the hinge mechanism 10b, but also cooperate with the shell body 10c to improve the appearance aesthetics of the foldable electronic device 10.

[0154] Optionally, in some embodiments, the base assembly 100 further comprises a support plate arranged on the base body. The support plate facilitates forming a support structure or a receiving space 101 in cooperation with the support member 220. In addition, the support plate cooperates with the decorative shell to better protect the damping assembly, the synchronization assembly, etc.

[0155] The foldable electronic device 10 of the present disclosure can include a ranging device, a scanning device, a photographing device, a handheld device, a vehicle-mounted device, a wearable device, a monitoring device, a cellular phone, a smartphone, a personal digital assistant computer, a tablet computer, a notebook computer, a laptop computer, a video camera, a video recorder, a camera, a vehicle-mounted computer, etc.

[0156] Referring to Figure 16 As shown in FIG. 1, in some embodiments, the foldable electronic device 10 further includes at least one or more of the following components: a processing component 11, a memory 12, a power component 13, a multimedia component 14, an audio component 15, an input / output interface 16, a sensor component 17, and a communication component 18.

[0157] The processing component generally controls the overall operation of the foldable electronic device, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component includes one or more processors, for example, to execute instructions stored in the memory to complete all or part of the steps of the methods described above. In addition, the processing component includes one or more modules to facilitate interaction between the processing component and other components. For example, the processing component includes at least a multimedia module to facilitate interaction between the multimedia component and the processing component.

[0158] The memory is configured to store various types of data to support the operation of the foldable electronic device. Examples of such data include instructions for any application or method operating on the foldable electronic device, contact data, phonebook data, messages, pictures, videos, etc. The memory can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory, erasable programmable read-only memory, programmable read-only memory, read-only memory, magnetic storage, flash memory, magnetic disk, or optical disk.

[0159] The control mainboard includes the processing component and the memory.

[0160] The power component provides power to various components of the foldable electronic device. The power component includes at least a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to the foldable electronic device.

[0161] The multimedia component includes the display module of the present disclosure, which facilitates human interaction with the foldable electronic device. If the display module includes a touch panel, the display module can be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touch, swiping, and gestures on the touch panel. The touch sensors can not only sense the boundary of a touch or swiping action, but also detect the duration and pressure associated with the touch or swiping operation. In some embodiments, the multimedia component includes a front-facing camera and / or a rear-facing camera. The front-facing camera and / or the rear-facing camera can receive external multimedia data when the foldable electronic device is in an operation mode, such as a shooting mode or a video mode. Each of the front-facing camera and the rear-facing camera can be a fixed optical lens system or have a focal length and optical zoom capability.

[0162] The audio component is configured to output and / or input audio signals. For example, the audio component includes a microphone (MIC) that is configured to receive an external audio signal when the foldable electronic device is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory or transmitted via the communication component. In some embodiments, the audio component also includes a speaker for outputting audio signals.

[0163] The input / output interface provides an interface between the processing component and peripheral interface modules, which can be a keyboard, a click wheel, a button, and the like. These buttons can include, but are not limited to, a home button, a volume button, a start button, and a lock button.

[0164] The sensor component includes one or more sensors to provide various aspects of state evaluation for the foldable electronic device. For example, the sensor component can detect the open / closed state of the foldable electronic device, the relative positioning of components, such as the display and the keypad of the foldable electronic device, the sensor component can also detect the position change of the foldable electronic device or a component of the foldable electronic device, the presence or absence of user contact with the foldable electronic device, the orientation or acceleration / deceleration of the foldable electronic device, and the temperature change of the foldable electronic device. The sensor component includes at least a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor component also includes at least a photosensitive element, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component also includes at least an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0165] The communication component is configured to facilitate wired or wireless communication between the foldable electronic device and other devices. The foldable electronic device can access a wireless network based on a communication standard, such as Wi-Fi, 2G, 3G, 4G, or 6G, etc., or a combination thereof. In an example embodiment, the communication component receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an example embodiment, the communication component further includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0166] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present disclosure.

[0167] In addition, the terms "first", "second", and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0168] In the present disclosure, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0169] In the present disclosure, unless specifically defined and limited otherwise, a first feature "on" or "under" a second feature can be directly in contact with the second feature, or indirectly in contact with the second feature through an intermediate medium. Moreover, the first feature "over", "above" and "on top of" the second feature can be directly above or obliquely above the second feature, or simply means that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "underneath" the second feature can be directly below or obliquely below the second feature, or simply means that the first feature is lower than the second feature in horizontal height.

[0170] It should be noted that when an element is referred to as being "fixed", "disposed", "secured" or "arranged" to another element, it can be directly on the other element or there can be an intermediate element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intermediate element. Further, when an element is referred to as being "fixedly connected" to another element, the two can be fixedly connected in a detachable manner or fixedly connected in a non-detachable manner such as sleeving, clamping, integrally formed fixing, welding, etc., which can be achieved in the prior art and will not be described here.

[0171] The above embodiments only express several embodiments of the present disclosure, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be noted that for those skilled in the art, without departing from the inventive concept of the present disclosure, a number of modifications and improvements can be made, which are all within the scope of protection of the present disclosure.

Claims

1. A hinge mechanism, characterized by The hinge mechanism comprises: a base assembly; a bearing assembly comprising a connecting member; a hinge component comprising a first connecting rod, a second connecting rod, a third connecting rod and a transmission member, one end of the first connecting rod is rotatably connected with the base assembly, the second connecting rod is rotatably connected with the base assembly, one end of the transmission member is rotatably connected with the second connecting rod, the second connecting rod is slidably connected with the connecting member, one end of the third connecting rod is rotatably connected with the other end of the transmission member and the other end of the first connecting rod, the other end of the third connecting rod is rotatably connected with the connecting member; one of the transmission member and the first connecting rod is provided with a pressing protrusion, when the hinge mechanism is in the folded state, the connecting member is arranged at an angle with the base assembly, the pressing protrusion is in abutment with the other one, so that the transmission member extrudes the first connecting rod.

2. The hinge mechanism of claim 1, wherein, When the hinge mechanism is in the folded state, the pressing protrusion is in abutment with the other one, so that part of the first connecting rod is lifted towards the center line direction of the base assembly.

3. The hinge mechanism of claim 1, wherein, The other end of the third connecting rod is rotatably connected with the connecting member and has a first rotation center, the other end of the transmission member is rotatably connected with the other end of the first connecting rod and has a second rotation center, one end of the transmission member is rotatably connected with the second connecting rod and has a third rotation center; When the hinge mechanism is in the folded state, the first rotation center and the third rotation center form a first connection line, the second rotation center is arranged on the inner side of the first connection line, so that the pressing protrusion lifts the first connecting rod.

4. The hinge mechanism of claim 1, wherein, The pressing protrusion is fixedly arranged on the transmission member; And / or, the bearing assembly further comprises a supporting member rotatably connected with the connecting member; when the hinge mechanism is in the folded state, the supporting member is arranged in abutment with the connecting member; when the hinge mechanism is in the unfolded state, at least part of the supporting member is arranged away from the connecting member to form a supporting structure with the base assembly.

5. The hinge mechanism of claim 1, wherein, The transmission member is provided with a first gap, part of the first connecting rod is arranged in the first gap and rotatably connected with part of the transmission member; the pressing protrusion is fixedly arranged on the transmission member and arranged close to the edge of the first gap.

6. The hinge mechanism of claim 5, wherein, The other end of the transmission member comprises two first rotation parts arranged at intervals to form the first gap, the first rotation parts are rotatably connected with the other end of the first connecting rod and one end of the third connecting rod, the pressing protrusion is arranged between the two first rotation parts.

7. The hinge mechanism of claim 6, wherein, One end of the third connecting rod is provided with a second rotation part, the other end of the first connecting rod is provided with a third rotation part, the third rotation part is rotatably connected with the second rotation part and embedded in the first gap, and is rotatably connected with the first rotation part respectively.

8. The hinge mechanism of claim 7, wherein, The hinge component further comprises a first rotation shaft, the first rotation part is provided with a first through hole, the second rotation part is provided with a second through hole, the third rotation part is provided with a third through hole, the second rotation part and the third rotation part are nested to make the first through hole, the second through hole and the third through hole arranged along the same axis and respectively sleeved with the first rotation shaft.

9. The hinge mechanism of claim 7, wherein, The first connecting rod comprises a fourth rotating part rotatably connected with the base frame assembly and a plate body fixed between the fourth rotating part and the third rotating part; when the hinge mechanism is in the folded state, the plate body abuts against the abutting convex part.

10. The hinge mechanism of claim 9, wherein, The fourth rotating part comprises an arc-shaped guide body, and the base frame assembly is provided with an arc-shaped guide groove in guided cooperation with the arc-shaped guide body. And / or, one of the transmission member and the first connecting rod is provided with a guide rail body, and the other is provided with a guide groove in guided cooperation with the guide rail body.

11. The hinge mechanism of claim 10, wherein, The guide groove comprises two guide grooves provided on the transmission member, and the abutting convex part is provided between the two guide grooves.

12. The hinge mechanism according to any one of claims 1 to 11, characterized in that The second connecting rod comprises a first connecting body slidably connected with the connecting piece, a second connecting body rotatably connected with the base frame assembly, and a limiting body fixed between the first connecting body and the second connecting body, and the transmission member is provided with a first guide surface; when the hinge mechanism is in the folded state, the first guide surface is provided between the limiting body and the first connecting rod, and forms a limiting surface with part of the limiting body and the first connecting rod.

13. The hinge mechanism of claim 12, wherein, The first guide surface comprises a guide inclined surface, and when the hinge mechanism is in the folded state, the guide inclined surface is inclined from the first connecting rod to the limiting body.

14. The hinge mechanism of claim 12, wherein, The first connecting body comprises a first side and a second side provided opposite to the first side, the first side is provided with a first guide part slidably connected with the connecting piece and a fifth rotating part rotatably connected with one end of the transmission member, the fifth rotating part is provided between the first guide part and the second connecting body, and the second side further comprises a second guide part slidably connected with the connecting piece. The cooperation length of the second guide part and the connecting piece is greater than the cooperation length of the first guide part and the bearing assembly.

15. The hinge mechanism of claim 14, wherein, Part of the second guide part and the fifth rotating part are provided opposite to each other along the direction from the first side to the second side, so that the length of the second guide part is greater than the length of the first guide part. And / or, one of the fifth rotating part and one end of the transmission member is provided with a rotating convex body, and the other is provided with a cooperation hole in rotational cooperation with the rotating convex body.

16. The hinge mechanism of claim 15, wherein, One end of the transmission member is provided with the rotating convex body, and the first side is provided with the cooperation hole. And / or, the cooperation hole is a blind hole.

17. The hinge mechanism of claim 14, wherein, The connecting piece comprises a first cooperation part slidably cooperating with the first guide part and a second cooperation part slidably cooperating with the second guide part. When the bearing assembly is in the folded state, the cooperation length of the second guide part and the second cooperation part is greater than the cooperation length of the first guide part and the first cooperation part.

18. The hinge mechanism of claim 17, wherein, Part of the second guide part and part of the second cooperation part are provided opposite to each other along the direction from the first side to the second side, so that the length of the second guide part is greater than the length of the first guide part, and the length of the second cooperation part is greater than the length of the first cooperation part. And / or, one of the first guide part and the first cooperation part is provided with a first sliding rail, and the other is provided with a first sliding groove in sliding cooperation with the first sliding rail. And / or, one of the second guide part and the second matching part is provided with a second sliding rail, and the other is provided with a second sliding groove in sliding cooperation with the second sliding rail.

19. The hinge mechanism of claim 18, wherein, The first guide part is provided with a first sliding rail, which comprises a first rail body, a second rail body and a stop part arranged at intervals from the fifth rotating part, the first rail body is arranged between the fifth rotating part and the stop part, and the second rail body is arranged at intervals from the first rail body on both sides of the stop part; when the hinge mechanism is in the folded state, the stop part is in stop cooperation with the hinge part to limit the connecting piece from rotating further in the folding direction of the hinge mechanism.

20. The hinge mechanism of claim 19, wherein, The third connecting rod is provided with a limiting protrusion, and the stop part is provided with a limiting groove; when the hinge mechanism is in the folded state, at least part of the limiting protrusion is clamped in the limiting groove, so that the stop part is in stop cooperation with the hinge part.

21. The hinge mechanism of claim 20, wherein, The first rail body comprises a first end part arranged in the limiting groove, and at least one of the first end part and the outer surface of the limiting protrusion is provided with a first guide surface for guiding the limiting protrusion into the limiting groove.

22. The hinge mechanism of claim 21, wherein, The second rail body comprises a second end part arranged opposite to the first end part; when the hinge mechanism is in the folded state, the second end part abuts against part of the limiting protrusion, so that the limiting protrusion is in stop cooperation with the stop part.

23. The hinge mechanism of claim 14, wherein, The connecting piece comprises a first matching part in sliding cooperation with the first guide part and a second matching part in sliding cooperation with the second guide part; the first connecting body further comprises a first limiting part, and the connecting piece further comprises a second limiting part; When the hinge mechanism is in the unfolded state, the first limiting part abuts against the second limiting part, so that the second connecting rod is in stop cooperation with the connecting piece.

24. The hinge mechanism of claim 23, wherein, The first limiting part is arranged between the first guide part and the second guide part, and the second limiting part is arranged between the first matching part and the second matching part; And / or, the first limiting part is arranged in the first guide part, and the second limiting part is arranged in the first matching part; And / or, the first limiting part is arranged in the second guide part, and the second limiting part is arranged in the second matching part.

25. The hinge mechanism of claim 23, wherein, One of the first limiting part and the second limiting part is provided with a limiting protrusion, and the other abuts against the limiting protrusion when the hinge mechanism is in the unfolded state.

26. The hinge mechanism of claim 25, wherein, The connecting piece comprises a bearing surface and a bottom surface arranged opposite to the bearing surface, the second limiting part is arranged between the bearing surface and the bottom surface, the second connecting rod comprises a front surface arranged in the same direction as the bearing surface and a back surface arranged opposite to the front surface, and the limiting protrusion is arranged on the back surface.

27. The hinge mechanism of claim 26, wherein, On the bottom surface, the first matching part and the second matching surface extend towards the base assembly and form a second notch, and the second limiting part is arranged on the side wall of the second notch; when the hinge mechanism is in the unfolded state, the limiting protrusion is arranged in the second notch and abuts against the second limiting part.

28. A foldable electronic device, comprising: The flexible display screen, the shell body and the hinge mechanism according to any one of claims 1 to 27 are fixedly connected, at least part of the flexible display screen covers the hinge mechanism and the shell body, and is folded or unfolded through the hinge mechanism.

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