Rotating mechanism and folding electronic equipment

Abstract

The embodiment of the invention provides a rotating mechanism and folding electronic equipment. The rotating mechanism and the folding electronic equipment are used for solving the problem that a flexible screen is poor in reliability. The rotating mechanism comprises a main shaft, two rotating shaft assemblies and a supporting door plate. The first rotating shaft assembly is rotationally connected with the main shaft, the second rotating shaft assembly is rotationally connected with the main shaft, and the supporting door plate comprises a first sub-part, a second sub-part, a third sub-part and a fourth sub-part. When the two rotating shaft assemblies are in a flat state, the four sub-parts are sequentially arranged in the second direction and jointly form a supporting plane. When the rotating mechanism is converted from the flat state to the folded state, the four sub-parts rotate relative to the main shaft and are not bent. When the two rotating shaft assemblies are in the folded state, the flexible screen can be bent into a water drop shape or an approximate water drop shape in the screen containing space defined by the four sub-parts and the main shaft, and excessive extrusion on the flexible screen is avoided. And the distance between the first end of the second sub-part and the first end of the third sub-part is increased, so that the screen accommodating space is further increased.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of foldable electronic products, and in particular, to a rotating mechanism and a folding electronic device. Background Art

[0002] With the continuous development of display technology, foldable display terminals have gradually become a development trend of future mobile electronic products. When the folding electronic device is in the unfolded state, a larger display area can be obtained, improving the viewing effect. When the folding electronic device is in the folded state, a smaller volume can be obtained, which is convenient for users to carry.

[0003] Among them, the folding electronic device at least includes: a flexible screen and a housing device. The housing device includes two structural members for carrying the flexible screen and a rotating mechanism. The two structural members are connected to both sides of the rotating mechanism. In the actual use process, the rotating mechanism drives the two structural members to rotate, so that the folding electronic device can be folded or unfolded. In traditional in-foldable screen electronic devices, when the electronic device is folded, the flexible screen is folded inside the housing device, and the bent part of the flexible screen is easily damaged due to being overly squeezed by the housing device, resulting in poor reliability of the flexible screen. Summary of the Invention

[0004] The embodiments of the present application provide a rotating mechanism and a folding electronic device for improving the problem of poor reliability of the flexible screen.

[0005] To achieve the above object, the embodiments of the present application provide the following solutions:

[0006] On the one hand, a rotating mechanism is provided, including: a main shaft, two rotating shaft assemblies, and a supporting door panel. The main shaft extends along a first direction. The two rotating shaft assemblies include a first rotating shaft assembly and a second rotating shaft assembly. The first rotating shaft assembly is rotatably connected to the main shaft, and the second rotating shaft assembly is rotatably connected to the main shaft. The rotation axes of the two rotating shaft assemblies relative to the main shaft are both parallel to the first direction and do not coincide. The supporting door panel includes four sub-parts, and the four sub-parts include a first sub-part, a second sub-part, a third sub-part, and a fourth sub-part. The first sub-part is connected to the first rotating shaft assembly, and the second sub-part is connected to the first rotating shaft assembly; the third sub-part is connected to the second rotating shaft assembly, and the fourth sub-part is connected to the second rotating shaft assembly.

[0007] When the two rotating shaft assemblies are in the unfolded state, the first sub - part, the second sub - part, the third sub - part, and the fourth sub - part are arranged in sequence along the second direction; the first sub - part, the second sub - part, the third sub - part, and the fourth sub - part together form a supporting plane; in the second direction, the second end of the first sub - part, the first end of the first sub - part, the second end of the second sub - part, the first end of the second sub - part, the first end of the third sub - part, the second end of the third sub - part, the first end of the fourth sub - part, and the second end of the fourth sub - part are arranged in sequence; the distance between the first end of the second sub - part and the first end of the third sub - part in the second direction is the first distance; the second direction is perpendicular to the first direction. The supporting plane can be used to support the flexible screen and improve the flatness of the flexible screen in the unfolded state. Here, the "supporting plane" can be understood as a horizontal plane or an approximately horizontal plane. Among them, the horizontal plane can be a horizontal surface parallel to the first direction and the second direction, and the approximately horizontal plane can be a surface with slight undulations, and the acceptable deviation range of the approximately horizontal plane can be, for example, within 5% deviation.

[0008] When the rotating mechanism is converted from the unfolded state to the folded state, the first sub - part, the second sub - part, the third sub - part, and the fourth sub - part rotate relative to the main shaft, and the four sub - parts supporting the door panel do not bend. Here, "do not bend" can be understood as that the four sub - parts supporting the door panel do not undergo elastic deformation from a macroscopic perspective. For example, the first sub - part, the second sub - part, the third sub - part, and the fourth sub - part can all be made of rigid materials. During the conversion of the rotating mechanism from the unfolded state to the folded state, the structural shapes of the four sub - parts supporting the door panel do not change from a macroscopic perspective.

[0009] When the two rotating shaft assemblies are in the folded state, in the second direction, the distance between the first end of the first sub - part and the first end of the fourth sub - part is greater than the distance between the second end of the first sub - part and the second end of the fourth sub - part; in the second direction, the distance between the first end of the second sub - part and the first end of the third sub - part is less than the distance between the second end of the second sub - part and the second end of the third sub - part; the distance between the first end of the second sub - part and the first end of the third sub - part in the second direction is the second distance, and the second distance is greater than the first distance. Through the above settings, the flexible screen can be bent into a water - droplet shape or an approximately water - droplet shape within the screen - accommodating space surrounded by the first sub - part, the second sub - part, the third sub - part, the fourth sub - part, and the main shaft, avoiding excessive extrusion of the flexible screen, thereby reducing the stress of the flexible screen and improving the reliability of the flexible screen. At the same time, since the second distance is greater than the first distance. When the two rotating shaft assemblies are in the unfolded state, the distance between the first end of the second sub - part and the first end of the third sub - part is reduced, which is beneficial to improving the supporting effect of the flexible screen. When the two rotating shaft assemblies are in the folded state, the distance between the first end of the second sub - part and the first end of the third sub - part is increased, which is beneficial to further increasing the screen - accommodating space surrounded by the first sub - part, the second sub - part, the third sub - part, the fourth sub - part, and the main shaft, thereby further improving the reliability of the flexible screen.

[0010] In some embodiments, when the two rotating shaft assemblies are in a folded state, in the direction close to the main shaft, the distance between the first sub - part and the fourth sub - part gradually increases in the second direction. Through the above - mentioned setting, the flatness of the support plane formed by the first sub - part and the fourth sub - part is ensured, thereby ensuring the support effect of the first sub - part and the fourth sub - part. At the same time, it is beneficial to improve the regularity of the first sub - part and the fourth sub - part and improve the preparation efficiency of the first sub - part and the fourth sub - part. Or, the distance between the first sub - part and the fourth sub - part first decreases and then increases. Through the above - mentioned setting, when the two rotating shaft assemblies are in a folded state, it is possible to avoid interference between the second ends of the first sub - part and the fourth sub - part and the flexible screen, which is beneficial to improving the reliability of the flexible screen.

[0011] In some embodiments, when the two rotating shaft assemblies are in a folded state, in the direction close to the main shaft, the distance between the second sub - part and the third sub - part gradually decreases in the second direction. Through the above - mentioned setting, the flatness of the support plane formed by the second sub - part and the third sub - part is ensured, thereby ensuring the support effect of the second sub - part and the third sub - part. At the same time, it is beneficial to improve the regularity of the second sub - part and the third sub - part and improve the preparation efficiency of the second sub - part and the third sub - part.

[0012] In some embodiments, the first rotating shaft assembly includes a first connecting rod, a second connecting rod and a bracket. The first end of the first connecting rod is rotatably connected to the main shaft, the second end of the first connecting rod is rotatably connected to the first end of the second connecting rod, the second end of the second connecting rod is rotatably connected to the bracket, and the rotation axis of the bracket relative to the second connecting rod is parallel to the first direction, the rotation axis of the second connecting rod relative to the first connecting rod is parallel to the first direction, and the rotation axis of the first connecting rod relative to the main shaft is parallel to the first direction; the first sub - part is connected to the first rotating shaft assembly, and the second sub - part is connected to the first rotating shaft assembly, including: the first sub - part is connected to the second connecting rod, and the second sub - part is connected to the first connecting rod. Through the above - mentioned setting, when the first structural member drives the bracket to rotate, the bracket can drive the second connecting rod to rotate relative to the main shaft so that the first sub - part can rotate relative to the main shaft, and the second connecting rod can drive the first connecting rod to rotate relative to the main shaft so that the second sub - part can rotate relative to the main shaft.

[0013] In some embodiments, the first end of the first connecting rod is rotatably connected to the main shaft, including: the first end of the first connecting rod is rotatably connected to the main shaft through a first arc - shaped slider and a first arc - shaped chute. The first end of the first connecting rod includes a first arc - shaped slider, and the main shaft includes a first arc - shaped chute; or, the first end of the first connecting rod includes a first arc - shaped chute, and the main shaft includes a first arc - shaped slider. Through the above - mentioned setting, the first connecting rod can be installed in the main shaft, and the first connecting rod can be rotatably connected to the main shaft in a virtual - axis connection manner.

[0014] In some embodiments, the first end of the second link is connected to the second end of the first link by a pin shaft, and the second end of the second link is rotatably connected to the bracket, including: the second end of the second link is rotatably connected to the bracket by a second arc-shaped slider and a second arc-shaped chute. The second end of the second link includes the second arc-shaped slider, and the bracket includes the second arc-shaped chute; alternatively, the second end of the second link includes the second arc-shaped chute, and the bracket includes the second arc-shaped slider. Through the above arrangement, the first end of the second link is rotatably connected to the second end of the first link in a rotational manner by a solid shaft, which is beneficial to improving the rotational accuracy and connection reliability between the second link and the first link. The second link is rotatably connected to the bracket by a virtual shaft connection. Further, the second link and the bracket are connected by a virtual shaft, so that the rotational axis of the second link relative to the bracket can be closer to the flexible screen, avoiding pulling the flexible screen during the rotation of the rotating shaft assembly, which is beneficial to improving the reliability of the flexible screen.

[0015] In some embodiments, the first rotating shaft assembly further includes a third link. The first end of the third link is rotatably connected to the first link, and the second end of the third link is rotatably connected to the bracket; the rotational axis of the third link relative to the first link is the first axis, the first axis is parallel to the first direction, the rotational axis of the second link relative to the first link is the second axis. When the two rotating shaft assemblies are in a flat state, the second axis is farther from the main shaft in the third direction than the first axis; the rotational axis of the third link relative to the bracket is the third axis, the third axis is parallel to the first direction, the rotational axis of the second link relative to the bracket is the fourth axis. When the two rotating shaft assemblies are in a flat state, the fourth axis is farther from the main shaft in the third direction than the third axis, and the third direction is perpendicular to the first direction and the second direction. Through the above arrangement, the first link, the second link, the third link and the bracket can jointly form a four-bar linkage mechanism, and the four-bar linkage mechanism can achieve the effect of the main movement and can drive other mechanisms connected between the bracket and the main shaft to move.

[0016] In some embodiments, the second end of the third link is connected to the bracket by a pin shaft. The first link includes a third arc-shaped chute. The first end of the third link is rotatably connected to the first link, including: the first end of the third link is rotatably connected to the first link through a third arc-shaped slider and a third arc-shaped chute. The first end of the third link includes a third arc-shaped slider, and the first link includes a third arc-shaped chute; alternatively, the first end of the third link includes a third arc-shaped chute, and the first link includes a third arc-shaped slider. Through the above arrangement, the third link is rotatably connected to the first link by means of a virtual axis, and the third link and the bracket are rotatably connected by means of a physical axis. It can be understood that since the rotation mode of the virtual axis requires the setting of a matching arc-shaped chute and arc-shaped slider, more space needs to be occupied. Rotatingly connecting the third link and the bracket by means of a physical axis is beneficial to reducing the volume of the bracket and improving the connection reliability between the third link and the bracket.

[0017] In some embodiments, the first rotating shaft assembly further includes a fourth link. The first end of the fourth link is rotatably connected to the main shaft, and the second end of the fourth link is rotatably connected to the bracket. The rotation axis of the bracket relative to the fourth link and the rotation axis of the fourth link relative to the main shaft are both parallel to the first direction. By providing the fourth link, it is beneficial to further improve the connection reliability between the bracket and the main shaft.

[0018] In some embodiments, the second end of the fourth link is connected to the bracket by a pin shaft. The first end of the fourth link is rotatably connected to the main shaft, including: the first end of the fourth link is rotatably connected to the main shaft through a fourth arc-shaped slider and a fourth arc-shaped chute. The first end of the fourth link includes a fourth arc-shaped slider, and the main shaft further includes a fourth arc-shaped chute; alternatively, the first end of the fourth link includes a fourth arc-shaped chute, and the main shaft further includes a fourth arc-shaped slider. Through the above arrangement, the fourth body and the bracket can be rotatably connected by means of a physical axis. When the fourth link and the main shaft are rotatably connected by means of a virtual axis, the fourth link can rotate relative to the main shaft while the fourth arc-shaped slider slides along the fourth arc-shaped chute.

[0019] In some embodiments, the first rotating shaft assembly further includes a swing rod. The first end of the swing rod is rotatably connected to the main shaft, and the rotation axis of the swing rod relative to the main shaft is parallel to the first direction. The second end of the swing rod is slidably connected to the bracket, and the sliding direction of the swing rod relative to the bracket is not parallel to the extension direction of the bracket; wherein, when the two rotating shaft assemblies rotate from the unfolded state to the folded state, the bracket slides away from the main shaft relative to the swing rod; when the two rotating shaft assemblies rotate from the folded state to the unfolded state, the bracket slides closer to the main shaft relative to the swing rod. Through the above arrangement, it is beneficial to adjust the length between the two brackets. During the folding or unfolding process of the two rotating shaft assemblies, it is beneficial to ensure that the length of the flexible screen does not change, and to improve the phenomenon of extrusion or stretching of the flexible screen by the rotating mechanism.

[0020] In some embodiments, the first end of the swing rod includes a swing rod slider. The second end of the swing rod is rotatably connected to the main shaft through a pin shaft. The bracket includes a bracket chute, and the swing rod slider is slidably connected to the bracket chute. Through the above arrangement, the swing rod and the main shaft can be rotatably connected by means of a solid shaft connection, which is beneficial to improving the connection reliability and rotational accuracy between the swing rod and the main shaft.

[0021] In some embodiments, the support door panel further includes a bent portion, and the bent portion is connected between the second sub-portion and the first sub-portion. Wherein, when the two rotating shaft assemblies are in a flat state, the bent portion is flattened; when the two rotating shaft assemblies are in a folded state, the bent portion is bent, and a bending angle is formed between the first sub-portion and the second sub-portion. Through the above arrangement, the bent portion can fill the gap between the second sub-portion and the first sub-portion. When the two rotating shaft assemblies are in a flat state, it is beneficial to further improve the support effect of the support door panel on the flexible screen.

[0022] In some embodiments, the bent portion, the second sub-portion and the first sub-portion are of an integral structure. Through the above arrangement, it is beneficial to improve the connection reliability of the support door panel.

[0023] In some embodiments, the bent portion has a plurality of through holes penetrating therethrough. Through the above arrangement, it is beneficial to reduce the rigidity of the bent portion, reduce the elastic force of the bent portion on the flexible screen when bending, and thus improve the bending feel of the support door panel.

[0024] In some embodiments, the thickness of the bent portion is less than the thickness of the first sub-portion, and the thickness of the bent portion is less than the thickness of the second sub-portion. Through the above arrangement, it is beneficial to reduce the rigidity of the bent portion, reduce the elastic force of the bent portion on the flexible screen when bending, and thus improve the bending feel of the support door panel.

[0025] In some embodiments, the support door panel further includes a flexible layer, and the flexible layer is connected to the same side of the second sub-portion and the first sub-portion, and the flexible layer located between the second sub-portion and the first sub-portion is the bent portion. Through the above arrangement, when the two rotating shaft assemblies are in a flat state, the flexible layer located between the second sub-portion and the first sub-portion is flattened, which is beneficial to further improve the support effect of the support door panel on the flexible screen; when the two rotating shaft assemblies are in a folded state, the flexible layer located between the second sub-portion and the first sub-portion is bent.

[0026] In some embodiments, in the direction perpendicular to the support plane, at least part of the first sub-portion and the main shaft overlap, and at least part of the second sub-portion and the main shaft overlap. Through the above arrangement, it is beneficial to reduce the size of the rotating mechanism in the second direction, and thus beneficial to realizing the thinning and lightening of the folding electronic device.

[0027] On the other hand, a folding electronic device is provided, including: a flexible screen, a first structural member, a second structural member, and a rotating mechanism as in any of the above embodiments. The first structural member and the second structural member are connected to both sides of the rotating mechanism. The flexible screen is located on the same side of the first structural member and the second structural member and is connected to the first structural member and the second structural member. When the folding electronic device is in the unfolded state, the supporting plane of the rotating mechanism is used to support the flexible screen. When the folding electronic device is in the folded state, the first sub-part, the second sub-part, the third sub-part, the fourth sub-part of the rotating mechanism, and the main shaft of the rotating mechanism together enclose a screen accommodating space, and a part of the flexible screen is located in the screen accommodating space. The folding electronic device provided by the embodiments of the present application includes the rotating mechanism as described above, and thus has all the above beneficial effects, which will not be elaborated herein.

[0028] In some embodiments, at least one of the first sub-part, the second sub-part, the third sub-part, and the fourth sub-part is connected to the flexible screen. Through the above arrangement, the flexible screen can be fixed to the supporting door panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a structural diagram of a folding electronic device provided by an embodiment of the present application;

[0030] Figure 2 is a structural diagram of a folding electronic device provided by an embodiment of the present application in a flat state;

[0031] Figure 3 is Figure 2 a partial exploded view of the folding electronic device in;

[0032] Figure 4 is Figure 2 a sectional view along the A-A section line of the folding electronic device in the folded state in;

[0033] Figure 5 is Figure 2 a sectional view along the B-B section line of the folding electronic device in the flat state in;

[0034] Figure 6 is Figure 2 a sectional view along the C-C section line of the folding electronic device in the folded state in;

[0035] Figure 7 is a structural exploded view of a rotating mechanism provided by an embodiment of the present application;

[0036] Figure 8 is a structural diagram of a rotating module provided by an embodiment of the present application;

[0037] Figure 9Exploded view of the structure of a rotation module provided by an embodiment of the present application;

[0038] Figure 10 Exploded view of the structure of another rotation module provided by an embodiment of the present application;

[0039] Figure 11a Structure diagram of a main shaft provided by an embodiment of the present application;

[0040] Figure 11b Structure diagram of the support and mating part in a main shaft provided by an embodiment of the present application;

[0041] Figure 12 Structure diagram of a first connecting rod provided by an embodiment of the present application;

[0042] Figure 13 Structure diagram of a second connecting rod provided by an embodiment of the present application;

[0043] Figure 14 Structure diagram of a bracket provided by an embodiment of the present application;

[0044] Figure 15 Structure diagram of a third connecting rod provided by an embodiment of the present application;

[0045] Figure 16 Partial sectional view of a rotation mechanism in the deployed state provided by an embodiment of the present application;

[0046] Figure 17 Partial sectional view of a rotation mechanism in the folded state provided by an embodiment of the present application;

[0047] Figure 18 Exploded view of the structure of another rotation module provided by an embodiment of the present application;

[0048] Figure 19 Structure diagram of a fourth connecting rod provided by an embodiment of the present application;

[0049] Figure 20 Structure diagram of the support and mating part of another main shaft provided by an embodiment of the present application;

[0050] Figure 21 Structure diagram of a swing rod provided by an embodiment of the present application;

[0051] Figure 22 Another partial sectional view of a rotation mechanism in the unfolded state provided by an embodiment of the present application;

[0052] Figure 23 Another partial sectional view of a rotation mechanism in the folded state provided by an embodiment of the present application;

[0053] Figure 24 The main motion schematic diagram of another rotating mechanism provided by the embodiment of the present application;

[0054] Figure 25 The partial exploded view of another rotating mechanism provided by the embodiment of the present application;

[0055] Figure 26 The partial structure diagram of another second part provided by the embodiment of the present application;

[0056] Figure 27 It is Figure 25 The sectional view along the F-F section line when the rotating mechanism in is in the unfolded state;

[0057] Figure 28 It is Figure 25 The sectional view along the F-F section line when the rotating mechanism in is in the folded state;

[0058] Figure 29 The structure diagram of another support door panel provided by the embodiment of the present application;

[0059] Figure 30 It is Figure 29 The partial enlarged view at the N position of the support door panel in ;

[0060] Figure 31 The structure diagram of another support door panel provided by the embodiment of the present application;

[0061] Figure 32 It is Figure 31 The sectional view along the G-G section line of a support door panel in ;

[0062] Figure 33 It is Figure 31 The sectional view along the G-G section line of another support door panel in ;

[0063] Figure 34 The structure exploded view of a first structural part provided by the embodiment of the present application;

[0064] Figure 35 The structure diagram of the first mating part of the main shaft provided by the embodiment of the present application;

[0065] Figure 36 The structure diagram of a damping slider provided by the embodiment of the present application;

[0066] Figure 37 The structure exploded view of a second structural part provided by the embodiment of the present application;

[0067] Figure 38 The structure diagram of the second mating part of the main shaft provided by the embodiment of the present application;

[0068] Figure 39 Structural diagram of a first synchronization slider provided by an embodiment of the present application;

[0069] Figure 40 Structural diagram of a second synchronization slider provided by an embodiment of the present application. Detailed implementation manners

[0070] Next, the technical solutions in the embodiments of the present application will be described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0071] Hereinafter, terms such as "first" and "second" are only used for convenience of description, and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0072] In the embodiments of the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Exactly speaking, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific manner.

[0073] In the embodiments of the present application, direction indicators such as up, down, left, right, front and back for explaining the structures and movements of different components in the present application are relative. When the components are in the positions shown in the figures, these indicators are appropriate. However, if the description of the positions of the components changes, then these direction indicators will also change accordingly.

[0074] The embodiments of the present application provide a foldable electronic device. Among them, the foldable electronic device can be a terminal product such as a mobile phone, a tablet computer (pad), a television, a smart wearable product (for example, a smart watch, a smart bracelet), etc.

[0075] For the convenience of understanding the foldable electronic device 1 provided by the embodiments of the present application. Figure 1 Structural diagram of a foldable electronic device 1 provided by an embodiment of the present application. Next, in conjunction with Figure 1 , a foldable electronic device 1 is introduced as follows:

[0076] As Figure 1As shown in the figure, the foldable electronic device 1 includes a flexible screen 30. The flexible screen 30 may be an active matrix organic light emitting diode (AMOLED) display screen.

[0077] As a self-luminous display screen, the AMOLED display screen does not need to be provided with a back light module (BLM). Therefore, when the substrate of the AMOLED display screen is made of a flexible resin material, such as polyethylene terephthalate (PET), the AMOLED display screen can have the characteristic of being bendable.

[0078] In addition, as Figure 1 shown in the figure, the foldable electronic device 1 further includes a rotating mechanism 10, a first structural member 21, and a second structural member 22 for carrying the flexible screen 30. The rotating mechanism 10 is connected between the first structural member 21 and the second structural member 22. The first structural member 21 and the second structural member 22 are used to carry the flexible screen 30, so that the flexible screen 30 can be kept as flat as possible during use and protect the non-display surface of the flexible screen 30. The first structural member 21 and the second structural member 22 can rotate relative to the rotating mechanism 10 respectively. In the embodiments of the present application, only some structures of the first structural member 21 and the second structural member 22 are briefly described by way of example, and are also simplified and schematically shown in the drawings. The embodiments of the present application do not strictly limit the specific structures of the first structural member 21 and the second structural member 22.

[0079] Among them, the first structural member 21 and the second structural member 22 may respectively include a middle frame structure for installing and fixing other components of the foldable electronic device 1. For example, cameras, earphones, receivers, buttons, batteries, etc. The embodiments of the present application do not limit other electronic components provided on the first structural member 21 and the second structural member 22. The first structural member 21 and the second structural member 22 may also respectively include a decorative cover plate for protecting the devices inside the middle frame structure and presenting part of the appearance of the foldable electronic device 1.

[0080] Exemplarily, a part of the flexible screen 30 may be fixed to the first structural member 21 through an adhesive layer 40, a part may be fixed to the second structural member 22 through the adhesive layer 40, and a part may be fixed to the rotating mechanism 10. The adhesive layer 40 may be a thin film layer formed after coating glue. The embodiments of the present application do not limit the specific form of the adhesive layer 40. For example, the adhesive layer 40 may be a discontinuous thin film layer, or the adhesive layer 40 may also be a whole thin film layer. In addition, other electronic components may also be provided on the first structural member 21 and the second structural member 22.

[0081] Figure 2The figure is a structural diagram of a folding electronic device 1 provided by an embodiment of the present application in a flat state. Among them, Figure 2 The dotted-line frame in it is the placement position of the flexible screen 30 when it is in a flat state. Figure 3 is Figure 2 The partial structural explosion diagram of the folding electronic device 1 in. Refer to Figure 2 and Figure 3 , among which, the rotating mechanism 10 includes a main shaft 100 and two rotating shaft components 300. For the convenience of description, the first direction X is defined as the extension direction of the main shaft 100 below, the second direction Y is perpendicular to the first direction X, and the third direction Z is perpendicular to the plane where the first direction X and the second direction Y are located. The two rotating shaft components 300 are arranged along the second direction Y, and the two rotating shaft components 300 are respectively rotatably connected to the main shaft 100. The rotation axes of the two rotating shaft components 300 relative to the main shaft 100 are parallel to the first direction X and do not coincide.

[0082] Exemplarily, one end of a rotating shaft component 300 is rotatably connected to the main shaft 100, and the other end of a rotating shaft component 300 is connected to the first structural member 21; one end of the other rotating shaft component 300 is rotatably connected to the main shaft 100, and the other end of the other rotating shaft component 300 is connected to the second structural member 22. For example, the two rotating shaft components 300 may include a first rotating shaft component 300a and a second rotating shaft component 300b. One end of the first rotating shaft component 300a is rotatably connected to the main shaft 100, and the other end of the first rotating shaft component 300a is connected to the first structural member 21; one end of the second rotating shaft component 300b is rotatably connected to the main shaft 100, and the other end of the second rotating shaft component 300b is connected to the second structural member 22. Through the above settings, the first structural member 21 can drive the first rotating shaft component 300a to rotate relative to the main shaft 100, and the second structural member 22 can drive the second rotating shaft component 300b to rotate relative to the main shaft 100, so as to realize the folding or unfolding of the folding electronic device 1.

[0083] As Figure 2 shown, when the first structural member 21 and the second structural member 22 are in a flat state, the included angle between the first structural member 21 and the second structural member 22 can be approximately 180° (it can be understood that there is also a slight deviation in the included angle between the first structural member 21 and the second structural member 22, for example, the included angle can be 165°, 177° or 185°). At this time, the two rotating shaft components 300 are in a flat state, and the flexible screen 30 is also in a flat state, that is, the folding electronic device 1 is in a flat state.

[0084] Figure 4 is Figure 2 The sectional view along the A-A section line of the folding electronic device 1 in the folded state. Among them, Figure 4 The dotted-line frame in it is the placement position of the flexible screen 30 when it is in the folded state. AsFigure 4 As shown, when the first structural member 21 and the second structural member 22 are in the folded state, the angle between the first structural member 21 and the second structural member 22 can be approximately 0° (it can be understood that there may be a slight deviation in the angle between the first structural member 21 and the second structural member 22, for example, the angle can be 1°, 3° or 5°). At this time, the two rotating shaft assemblies 300 are in the folded state, and the flexible screen 30 is also in the folded state, that is, the folding electronic device 1 is in the folded state. In some embodiments, when the first structural member 21 and the second structural member 22 are in the folded state, the first structural member 21 and the second structural member 22 can be in contact with each other to achieve positioning. In some other embodiments, when the first structural member 21 and the second structural member 22 are in the folded state, the first structural member 21 and the second structural member 22 can also be close to each other, and there is a small gap between them. The embodiments of the present application do not specifically limit this.

[0085] Continue to refer to Figure 2 、 Figure 3 and Figure 4 , the rotating mechanism 10 includes a supporting door panel 310, and the supporting door panel 310 is used to support the flexible screen 30. In the embodiments of some related technologies, the number of the supporting door panels 310 can be two. When the first structural member 21 and the second structural member 22 are in the unfolded state, the two supporting door panels 310 are located on both sides of the main shaft 100, and the two supporting door panels 310 and the main shaft 100 jointly provide a good supporting environment for the flexible screen 30. When the first structural member 21 and the second structural member 22 are in the folded state, the two supporting door panels 310 are located on the same side of the main shaft 100, and the two supporting door panels 310 over-extrude the flexible screen 30, which may cause damage to the flexible screen 30, and further reduce the reliability of the flexible screen 30.

[0086] In view of this, referring to Figure 4 , in the rotating shaft assembly 300 provided in the embodiments of the present application, the supporting door panel 310 can include a first supporting door panel 310a and a second supporting door panel 310b. Wherein, the first supporting door panel 310a can include a first part 311 and a second part 312; the second supporting door panel 310b can also include a first part 311 and a second part 312. In some embodiments, the first part 311 and the second part 312 in the same supporting door panel 310 can be two independent structures. Or, in some other embodiments, the first part 311 and the second part 312 in the same supporting door panel 310 can also be an integral structure. Exemplarily, the first part 311 and the second part 312 can be substantially strip-shaped flat plates, and the extending directions of the strip-shaped flat plates can be parallel to the first direction X.

[0087] In some embodiments, the support door panel 310 may include four sub-parts, and the four sub-parts may include a first sub-part 3129, a second sub-part 3119, a third sub-part 3118, and a fourth sub-part 3128. Among them, the first sub-part 3129 and the second sub-part 3119 together form a first support door panel 310a, and the first sub-part 3129 may be the second part 312 of the first support door panel 310a, and the second sub-part 3119 is the first part 311 of the first support door panel 310a. Moreover, the first sub-part 3129 is connected to the first rotating shaft assembly 300a, and the second sub-part 3119 is connected to the first rotating shaft assembly 300a. The third sub-part 3118 and the fourth sub-part 3128 together form a second support door panel 310b, and the third sub-part 3118 is the first part 311 of the second support door panel 310b, and the fourth sub-part 3128 is the second part 312 of the second support door panel 310b. Moreover, the third sub-part 3118 is connected to the second rotating shaft assembly 300b, and the fourth sub-part 3128 is connected to the second rotating shaft assembly 300b.

[0088] In some embodiments, at least one of the first sub-part 3129, the second sub-part 3119, the third sub-part 3118, and the fourth sub-part 3128 may be connected to the flexible screen 30 so that the flexible screen 30 can be fixed to the support door panel 310.

[0089] In some embodiments, none of the first sub-part 3129, the second sub-part 3119, the third sub-part 3118, and the fourth sub-part 3128 is fixedly connected to the flexible screen 30 so that the flexible screen 30 can be in a freely bendable form. Here, the "freely bendable form" can be understood as the bending form of the first sub-part 3129, the second sub-part 3119, the third sub-part 3118, and the fourth sub-part 3128 has nothing to do with the flexible screen.

[0090] Figure 5 For Figure 2 the sectional view along the B-B section line when the folding electronic device 1 in Figure 5 is in the flat state. As shown, when the two rotating shaft assemblies 300 are in the flat state, the second part 312 and the first part 311 are arranged along the second direction Y, and the two first parts 311 are located between the two second parts 312. At least part of the first part 311 and the second part 312 together form a support plane N, and the support plane N is located on the side of the rotating shaft assembly 300 away from the main shaft 100. When the two rotating shaft assemblies 300 are in the flat state, for each rotating shaft assembly 300, at least part of the first part 311 and the second part 312 of the support door panel 310 may be flush so that at least part of the first part 311 and the second part 312 together form the support plane N.

[0091] Here, "at least part of the second part 312" can be understood as that the whole of the second part 312 can be flush with the first part 311, or part of the second part 312 is flush with the first part 311. As Figure 5 shown, the second part 312 may include a flat plate segment 312c and a curved segment 312d. Among them, the flat plate segment 312c may be located between the curved segment 312d and the first part 311, and the curved segment 312d may be bent away from the flexible screen 30. At this time, part of the second part 312 being flush with the first part 311 can be understood as that the flat plate segment 312c of the second part 312 is flush with the first part 311.

[0092] Exemplarily, when the two rotating shaft assemblies 300 are in the unfolded state, the first sub - part 3129, the second sub - part 3119, the third sub - part 3118, and the fourth sub - part 3128 are arranged in sequence along the second direction Y. The first sub - part 3129, the second sub - part 3119, the third sub - part 3118, and the fourth sub - part 3128 together form a support plane. The support plane N can be used to support the flexible screen 30 and improve the flatness of the flexible screen 30 in the unfolded state. Here, "the support plane N" can be understood as a plane or an approximate plane. Among them, the plane can be a surface parallel to the first direction X and the second direction Y, and the approximate plane can be a surface with slight undulations, and the acceptable deviation range of the approximate plane can be, for example, within 5%.

[0093] In some embodiments, the flexible screen 30 can be fixed on the support door panel 310 through the adhesive layer 40. By adjusting the thickness of the adhesive layer 40 between the flexible screen 30 and the support door panel 310, the support effect of the support door panel 310 on the flexible screen 30 can be adjusted to ensure that the flexible screen 30 is in the unfolded state. At this time, "together form the support plane N" can also be understood as that by adjusting the thickness of the adhesive layer 40 between the flexible screen 30 and the support door panel 310, the first sub - part 3129, the second sub - part 3119, the third sub - part 3118, and the fourth sub - part 3128 together form the support plane N, so as to ensure the unfolded state of the flexible screen 30 when it is flattened.

[0094] Exemplarily, when the two rotating shaft assemblies 300 are in the unfolded state, in the second direction Y, the second end 3129b of the first sub - part, the first end 3129a of the first sub - part, the second end 3119b of the second sub - part, the first end 3119a of the second sub - part, the first end 3118a of the third sub - part, the second end 3118b of the third sub - part, the first end 3128a of the fourth sub - part, and the second end 3128b of the fourth sub - part are arranged in sequence. The distance between the first end 3119a of the second sub - part and the first end 3118a of the third sub - part in the second direction is the first distance D1. In some embodiments, the first end 3119a of the second sub - part and the first end 3118a of the third sub - part may be in contact with each other, that is, the first distance D1 is zero. In some other embodiments, the first end 3119a of the second sub - part and the first end 3118a of the third sub - part may also be close to each other, and there is a small gap between them, and the width of the gap in the second direction Y is the first distance D1.

[0095] In some examples, in the direction perpendicular to the support plane N (i.e., the third direction Z), the first sub - part 3129 and the main shaft 100 at least partially overlap, and the second sub - part 3119 and the main shaft 100 at least partially overlap. For example, in the direction perpendicular to the support plane N, the orthographic projection of the first sub - part 3129 on the support plane N and the orthographic projection of the main shaft 100 on the support plane N at least partially overlap, and the orthographic projection of the second sub - part 3119 on the support plane N and the orthographic projection of the main shaft 100 on the support plane N at least partially overlap. Through the above - mentioned arrangement, it is beneficial to reduce the size of the rotating mechanism 10 in the second direction Y, and thus beneficial to realize the thin and light of the folding electronic device 1.

[0096] When the rotating mechanism 10 is converted from the unfolded state to the folded state, the first sub - part 3129, the second sub - part 3119, the third sub - part 3118, and the fourth sub - part 3128 rotate relative to the main shaft, and none of the four sub - parts supporting the door panel 310 are bent. The first sub - part 3129 is connected to the first rotating shaft assembly 300a, the second sub - part 3119 is connected to the first rotating shaft assembly 300a, the third sub - part 3118 is connected to the second rotating shaft assembly 300b, and the fourth sub - part 3128 is connected to the second rotating shaft assembly 300b. Since the first rotating shaft assembly 300a is rotatably connected to the main shaft 100, when the first rotating shaft assembly 300a rotates relative to the main shaft 100, the first sub - part 3129 and the second sub - part 3119 also rotate relative to the main shaft 100. Since the second rotating shaft assembly 300b is rotatably connected to the main shaft 100, when the second rotating shaft assembly 300b rotates relative to the main shaft 100, the first sub - part 3129 and the second sub - part 3119 also rotate relative to the main shaft 100. Here, "not being bent" can be understood as that the four sub - parts supporting the door panel 310 do not undergo elastic deformation from a macroscopic perspective. For example, the first sub - part 3129, the second sub - part 3119, the third sub - part 3118, and the fourth sub - part 3128 can all be made of rigid materials. During the conversion process of the rotating mechanism 10 from the unfolded state to the folded state, the structural shapes of the four sub - parts supporting the door panel 310 do not change from a macroscopic perspective.

[0097] Figure 6 is Figure 2 a sectional view along the C - C section line of the folding electronic device 1 in the folded state. As Figure 6 shown, when the two rotating shaft assemblies 300 are in the folded state, in the second direction Y, the distance between the first end 3129a of the first sub - part and the first end 3128a of the fourth sub - part is greater than the distance between the second end 3129b of the first sub - part and the second end 3128b of the fourth sub - part. In the second direction Y, the distance between the first end 3119a of the second sub - part and the first end 3118a of the third sub - part is less than the distance between the second end 3119b of the second sub - part and the second end 3118b of the third sub - part. The distance between the first end 3119a of the second sub - part and the first end 3118a of the third sub - part in the second direction Y is the second distance D2, and the second distance D2 is greater than the first distance D1.

[0098] When the two rotating shaft assemblies 300 are in the folded state, the first sub - part 3129, the second sub - part 3119, the third sub - part 3118, the fourth sub - part 3128 and the main shaft 100 together form a screen - containing space M. Among them, in the same support door panel 310, there can be a certain bending angle between the first part 311 and the second part 312. For example, the included angle between the first sub - part 3129 and the second sub - part 3119 can be an obtuse angle, and the included angle between the third sub - part 3118 and the fourth sub - part 3128 can be an obtuse angle. There can also be a certain bending angle between the first part 311 and the main shaft 100. For example, the included angle between the second sub - part 3119 and the main shaft 100 can be an obtuse angle, and the included angle between the third sub - part 3118 and the main shaft 100 can be an obtuse angle. Through the above settings, combined with Figure 4 As shown, within the screen - containing space M enclosed by the first sub - part 3129, the second sub - part 3119, the third sub - part 3118, the fourth sub - part 3128 and the main shaft 100, the flexible screen 30 can be bent into a water - droplet shape or an approximately water - droplet shape, avoiding excessive extrusion of the flexible screen 30, thereby reducing the stress of the flexible screen 30 and improving the reliability of the flexible screen 30.

[0099] Meanwhile, since the second distance D2 is greater than the first distance D1. When the two rotating shaft assemblies 300 are in the unfolded state, the distance between the first end 3119a of the second sub - part and the first end 3118a of the third sub - part is reduced, which is beneficial to improving the supporting effect of the flexible screen 30. When the two rotating shaft assemblies 300 are in the folded state, the distance between the first end 3119a of the second sub - part and the first end 3118a of the third sub - part is increased, which is beneficial to further increasing the screen - containing space M formed by the first sub - part 3129, the second sub - part 3119, the third sub - part 3118, the fourth sub - part 3128 and the main shaft 100, thereby further improving the reliability of the flexible screen 30.

[0100] When the two rotating shaft assemblies 300 are in the folded state, in the second direction Y, the distance between the first end 3129a of the first sub - part and the first end 3128a of the fourth sub - part is greater than the distance between the second end 3129b of the first sub - part and the second end 3128b of the fourth sub - part. The following embodiments may be included: In some embodiments, in the direction close to the main shaft 100, the distance between the first sub - part 3129 and the fourth sub - part 3128 in the second direction Y gradually increases. For example, the first sub - part 3129 may only include a flat plate segment 312c, and the fourth sub - part 3128 may also only include a flat plate segment 312c. In the direction close to the main shaft 100, the distance between the flat plate segment 312c of the first sub - part 3129 and the flat plate segment 312c of the fourth sub - part 3128 in the second direction Y gradually increases. Here, the "direction close to the main shaft 100" may be the direction parallel to the third direction Z and pointing to the main shaft 100. Through the above - mentioned setting, the flatness of the support plane N formed by the first sub - part 3129 and the fourth sub - part 3128 is ensured, and further the support effect of the first sub - part 3129 and the fourth sub - part 3128 is ensured. At the same time, it is beneficial to improve the regularity of the first sub - part 3129 and the fourth sub - part 3128 and improve the preparation efficiency of the first sub - part 3129 and the fourth sub - part 3128.

[0101] In some other embodiments, when the two rotating shaft assemblies 300 are in the folded state, in the direction close to the main shaft 100, the distance between the first sub - part 3129 and the fourth sub - part 3128 in the second direction Y first decreases and then increases. For example, as Figure 6 shown, the first sub - part 3129 may include a flat plate segment 312c and an arc segment 312d. Among them, the arc segment 312d is closer to the first end 3129a of the first sub - part than the flat plate segment 312c. Similarly, the fourth sub - part 3128 may also include a flat plate segment 312c and an arc segment 312d. Among them, the arc segment 312d is closer to the first end 3128a of the fourth sub - part than the flat plate segment 312c. In the direction close to the main shaft 100, the distance between the arc segment 312d of the first sub - part 3129 and the arc segment 312d of the fourth sub - part 3128 in the second direction Y gradually decreases. The distance between the flat plate segment 312c of the first sub - part 3129 and the flat plate segment 312c of the fourth sub - part 3128 in the second direction Y gradually increases. Here, the "direction close to the main shaft 100" may be the direction parallel to the third direction Z and pointing to the main shaft 100. Through the above - mentioned setting, when the two rotating shaft assemblies 300 are in the folded state, it is possible to avoid interference between the second end 3129b of the first sub - part and the second end 3128b of the fourth sub - part and the flexible screen 30, which is beneficial to improving the reliability of the flexible screen 30.

[0102] Of course, in some other embodiments, when the two rotating shaft assemblies 300 are in the folded state, in the direction close to the main shaft 100, the distance between the first sub - part 3129 and the fourth sub - part 3128 in the second direction Y first increases and then decreases. Here, the "direction close to the main shaft 100" can be the direction parallel to the third direction Z and pointing to the main shaft 100. Through the above - mentioned setting, increasing the distance between the first sub - part 3129 and the fourth sub - part 3128 in the second direction Y is beneficial to further increase the screen - containing space M enclosed by the first sub - part 3129, the second sub - part 3119, the third sub - part 3118, the fourth sub - part 3128 and the main shaft 100.

[0103] Similarly, when the two rotating shaft assemblies 300 are in the folded state, in the second direction Y, the distance between the first end 3119a of the second sub - part and the first end 3118a of the third sub - part is less than the distance between the second end 3119b of the second sub - part and the second end 3118b of the third sub - part, and it can also include the following several embodiments: In some embodiments, in the direction close to the main shaft 100, the distance between the second sub - part 3119 and the third sub - part 3118 in the second direction Y gradually decreases. For example, both the second sub - part 3119 and the third sub - part 3118 can be flat - plate structures. Here, the "direction close to the main shaft 100" can be the direction parallel to the third direction Z and pointing to the main shaft 100. Through the above - mentioned setting, the flatness of the support plane N formed by the second sub - part 3119 and the third sub - part 3118 is ensured, and further the support effect of the second sub - part 3119 and the third sub - part 3118 is ensured. At the same time, it is beneficial to improve the regularity of the second sub - part 3119 and the third sub - part 3118 and improve the preparation efficiency of the second sub - part 3119 and the third sub - part 3118.

[0104] In some other embodiments, when the two rotating shaft assemblies 300 are in the folded state, in the direction close to the main shaft 100, the distance between the second sub - part 3119 and the third sub - part 3118 in the second direction Y first decreases and then increases. Here, the "direction close to the main shaft 100" can be the direction parallel to the third direction Z and pointing to the main shaft 100. Through the above - mentioned setting, when the two rotating shaft assemblies 300 are in the unfolded state, it is beneficial to further improve the effect of the second sub - part 3119 and the third sub - part 3118 on improving the crease of the flexible screen 30. Or, in some other embodiments, when the two rotating shaft assemblies 300 are in the folded state, in the direction close to the main shaft 100, the distance between the second sub - part 3119 and the third sub - part 3118 in the second direction Y first increases and then decreases. Here, the "direction close to the main shaft 100" can be the direction parallel to the third direction Z and pointing to the main shaft 100. Through the above - mentioned setting, it is beneficial to further increase the screen - containing space M enclosed by the first sub - part 3129, the second sub - part 3119, the third sub - part 3118, the fourth sub - part 3128 and the main shaft 100.

[0105] Figure 7 The present application provides an exploded view of the structure of a rotating mechanism 10. As Figure 7 shown, the rotating shaft assembly 300 further includes a rotating part 320, and the rotating part 320 can be rotatably connected to the main shaft 100, thereby driving the two rotating shaft assemblies 300 to flatten or fold. For example, the two rotating parts 320 include a first rotating part 320a and a second rotating part 320b. Among them, the first rotating shaft assembly 300a can include the first rotating part 320a, and the first rotating part 320a is rotatably connected to the main shaft 100. The second rotating shaft assembly 300b can include the second rotating part 320b, and the second rotating part 320b is rotatably connected to the main shaft 100.

[0106] The rotating part 320 can also be connected to the supporting door panel 310 so that the supporting door panel 310 can rotate relative to the main shaft 100. For example, the first rotating part 320a can be connected to the first supporting door panel 310a, and the second rotating part 320b can be connected to the second supporting door panel 310b. When the two rotating shaft assemblies 300 are in a flat state, the first sub-part 3129, the second sub-part 3119, the third sub-part 3118, and the fourth sub-part 3128 can rotate to a flush state, thereby forming a supporting plane N for supporting the flexible screen 30; when the two rotating shaft assemblies 300 are in a folded state, in the second direction Y, the distance between the first end 3129a of the first sub-part and the first end 3128a of the fourth sub-part is greater than the distance between the second end 3129b of the first sub-part and the second end 3128b of the fourth sub-part. In the second direction Y, the distance between the first end 3119a of the second sub-part and the first end 3118a of the third sub-part is less than the distance between the second end 3119b of the second sub-part and the second end 3118b of the third sub-part. The distance between the first end 3119a of the second sub-part and the first end 3118a of the third sub-part increases in the second direction Y, thereby avoiding excessive extrusion of the flexible screen 30 by the enclosed screen-containing space M.

[0107] Continuing to refer to Figure 7 , the rotating mechanism 10 can include a plurality of rotating modules 400 arranged at intervals along the first direction X. The number of the rotating modules 400 can be set accordingly according to the width of the folding electronic device 1. For example, when the width of the folding electronic device 1 increases, the number of the rotating modules 400 can be increased to ensure the rotating effect of the folding electronic device 1. Each rotating module 400 can include a first rotating part 320a and a second rotating part 320b, and the plurality of rotating parts 320 arranged along the first direction X in the plurality of rotating modules 400 can be connected to the same supporting door panel 310.

[0108] Accordingly, the number of the main shafts 100 can be multiple, and the multiple main shafts 100 are arranged at intervals along the first direction X. Moreover, one main shaft 100 is rotationally connected to the first rotating part 320a and the second rotating part 320b in one rotating module 400. Further, the rotating mechanism 10 may further include a back cover 101. The back cover 101 and the main shaft 100 are stacked along the third direction Z. The extending direction of the back cover 101 may be parallel to the first direction X, and the multiple main shafts 100 may be mounted on the back cover 101. Through the above arrangement, the rotating parts 320 in the multiple rotating modules 400 can rotate relative to the same back cover 101. Among them, the back cover 101 may include an appearance surface E, and the appearance surface E may be the surface of the back cover 101 away from the main shaft 100, and the appearance surface E is used to display the appearance.

[0109] Alternatively, in some other examples, the number of the main shafts 100 can be one, and the multiple rotating modules 400 can be mounted on one main shaft 100. The embodiments of the present application do not make specific limitations in this regard.

[0110] In some embodiments, the rotating module 400 may further include a first structural part 420 and a second structural part 410. For example, as Figure 7 shown, the rotating mechanism 10 may include three rotating modules 400. The rotating module 400 located in the middle position may include a first rotating part 320a, a second rotating part 320b, a first structural part 420, and a second structural part 410, and the first structural part 420 and the second structural part 410 are located on both sides of the rotating part 320 along the first direction X; the rotating module 400 located at the edge position may include a first structural part 420, a first rotating part 320a, and a second rotating part 320b. Hereinafter, only taking the rotating module 400 located in the Figure 7 middle position as an example, the structure of the rotating module 400 will be described.

[0111] Figure 8 is a structural diagram of a rotating module 400 provided by an embodiment of the present application; Figure 9 is an exploded structural diagram of a rotating module 400 provided by an embodiment of the present application; Figure 10 is another exploded structural diagram of a rotating module 400 provided by an embodiment of the present application. As Figure 8 、 Figure 9 and Figure 10 shown, correspondingly, the main shaft 100 may further include a support and cooperation part 100a, and a first cooperation part 100b and a second cooperation part 100c located on both sides of the support and cooperation part 100a. Among them, the support and cooperation part 100a may be cooperatively connected with the rotating part 320, the first cooperation part 100b may be cooperatively connected with the first structural part 420; the second cooperation part 100c may be cooperatively connected with the second structural part 410.

[0112] Continue to refer toFigure 8 , Figure 9 and Figure 10 , the first rotating part 320a may further include a bracket 324, and the bracket 324 of the first rotating part 320a is used for fixedly connecting with the first structural member 21. The bracket 324 of the first rotating part 320a may also be connected to the first structural part 420. Similarly, the second rotating part 320b may further include a bracket 324, and the bracket 324 of the second rotating part 320b is used for fixedly connecting with the second structural member 22. The bracket 324 of the second rotating part 320b may also be connected to the second structural part 410.

[0113] In some embodiments, the first rotating part 320a may further include a first connecting rod 321 and a second connecting rod 322. In the first rotating part 320a, the first end 321a of the first connecting rod is rotatably connected to the main shaft 100, the second end 321b of the first connecting rod is rotatably connected to the first end 322a of the second connecting rod, the second end 322b of the second connecting rod is rotatably connected to the bracket 324 of the first rotating part 320a, and the rotation axis of the second connecting rod 322 relative to the first connecting rod 321 is parallel to the first direction X, the rotation axis of the bracket 324 of the first rotating part 320a relative to the second connecting rod 322 is parallel to the first direction X, and the rotation axis of the first connecting rod 321 relative to the main shaft 100 is parallel to the first direction X. Through the above settings, in the first rotating part 320a, the bracket 324 can rotate relative to the second connecting rod 322 along the rotation axis parallel to the first direction X, the second connecting rod 322 can rotate relative to the first connecting rod 321 along the rotation axis parallel to the first direction X, and the first connecting rod 321 can rotate relative to the main shaft 100 along the rotation axis parallel to the first direction X.

[0114] Based on the above structure, the first part 311 of the first support door panel 310a can be connected to the first connecting rod 321 of the first rotating part 320a, that is, the second sub - part 3119 can be connected to the first connecting rod 321 of the first rotating part 320a; the second part 312 of the first support door panel 310a can be connected to the second connecting rod 322 of the first rotating part 320a, that is, the first sub - part 3129 can be connected to the second connecting rod 322 of the first rotating part 320a. In some embodiments, the second sub - part 3119 can be fixedly connected to the first connecting rod 321 of the first rotating part 320a, and the first sub - part 3129 can be fixedly connected to the second connecting rod 322 of the first rotating part 320a. For example, the second sub - part 3119 can be adhered to the first connecting rod 321 of the first rotating part 320a, or the second sub - part 3119 can also be connected to the first connecting rod 321 of the first rotating part 320a through threaded fasteners such as bolts. Similarly, the first sub - part 3129 can be adhered to the second connecting rod 322 of the first rotating part 320a, or the first sub - part 3129 can also be connected to the second connecting rod 322 of the first rotating part 320a through threaded fasteners such as bolts.

[0115] Through the above settings, when the bracket 324 of the first rotating part 320a is driven by the first structural member 21 to rotate, the bracket 324 of the first rotating part 320a can drive the second connecting rod 322 of the first rotating part 320a to rotate relative to the main shaft 100, so that the first sub - part 3129 can rotate relative to the main shaft 100, and the second connecting rod 322 of the first rotating part 320a can drive the first connecting rod 321 of the first rotating part 320a to rotate relative to the main shaft 100, so that the second sub - part 3119 can rotate relative to the main shaft 100.

[0116] In some other embodiments, the second sub - part 3119 can be movably connected to the first connecting rod 321 of the first rotating part 320a, and the first sub - part 3129 can be movably connected to the second connecting rod 322 of the first rotating part 320a. For example, the second sub - part 3119 can be rotatably connected to the first connecting rod 321 of the first rotating part 320a, so that the second sub - part 3119 can rotate relative to the first connecting rod 321 of the first rotating part 320a, and the first sub - part 3129 can be rotatably connected to the second connecting rod 322 of the first rotating part 320a, so that the first sub - part 3129 can rotate relative to the second connecting rod 322 of the first rotating part 320a. The embodiments of the present application do not specifically limit the connection manner between the second sub - part 3119 and the first connecting rod 321 of the first rotating part 320a, and the embodiments of the present application do not specifically limit the connection manner between the first sub - part 3129 and the second connecting rod 322 of the first rotating part 320a.

[0117] Among them, the movement principle of the structural components in the second rotating part 320b can be the same as that of the structural components in the first rotating part 320a. Moreover, the relevant structures of the second rotating part 320b can also be the same as those of the first rotating part 320a. For example, the second rotating part 320b can also include a first connecting rod 321 and a second connecting rod 322. In the second rotating part 320b, the first end 321a of the first connecting rod is rotatably connected to the main shaft 100, the second end 321b of the first connecting rod is rotatably connected to the first end 322a of the second connecting rod, the second end 322b of the second connecting rod is rotatably connected to the bracket 324 of the second rotating part 320b, and the rotation axis of the second connecting rod 322 relative to the first connecting rod 321 is parallel to the first direction X, the rotation axis of the bracket 324 of the second rotating part 320b relative to the second connecting rod 322 is parallel to the first direction X, and the rotation axis of the first connecting rod 321 relative to the main shaft 100 is parallel to the first direction X. Through the above settings, in the second rotating part 320b, the bracket 324 can rotate relative to the second connecting rod 322 along the rotation axis parallel to the first direction X, the second connecting rod 322 can rotate relative to the first connecting rod 321 along the rotation axis parallel to the first direction X, and the first connecting rod 321 rotates relative to the main shaft 100 along the rotation axis parallel to the first direction X.

[0118] Based on the above structure, the first part 311 of the second support door panel 310b can be connected to the first connecting rod 321 of the second rotating part 320b, that is, the third sub - part 3118 can be connected to the first connecting rod 321 of the second rotating part 320b; the second part 312 of the second support door panel 310b can be connected to the second connecting rod 322 of the second rotating part 320b, that is, the fourth sub - part 3128 can be connected to the second connecting rod 322 of the second rotating part 320b. In some embodiments, the second sub - part 3119 can be fixedly connected to the first connecting rod 321 of the second rotating part 320b, and the first sub - part 3129 can be fixedly connected to the second connecting rod 322 of the second rotating part 320b. For example, the third sub - part 3118 can be bonded to the first connecting rod 321 of the second rotating part 320b, or the third sub - part 3118 can also be connected to the first connecting rod 321 of the second rotating part 320b through threaded fasteners such as bolts. Similarly, the fourth sub - part 3128 can be bonded to the second connecting rod 322 of the second rotating part 320b, or the fourth sub - part 3128 can also be connected to the second connecting rod 322 of the second rotating part 320b through threaded fasteners such as bolts.

[0119] With the above settings, when the second structural member 22 drives the bracket 324 of the second rotating part 320b to rotate, the bracket 324 of the second rotating part 320b can drive the second link 322 of the second rotating part 320b to rotate relative to the main shaft 100, so that the fourth sub-part 3128 can rotate relative to the main shaft 100, and the second link 322 of the second rotating part 320b can drive the first link 321 of the second rotating part 320b to rotate relative to the main shaft 100, so that the third sub-part 3118 can rotate relative to the main shaft 100.

[0120] When the rotating shaft assembly 300 is in the unfolded state, the first link 321 of the first rotating part 320a can rotate to be flush with the second link 322 of the first rotating part 320a, so that the first sub-part 3129 and the second sub-part 3119 are flush, and the first link 321 of the second rotating part 320b can rotate to be flush with the second link 322 of the second rotating part 320b, so that the third sub-part 3118 and the fourth sub-part 3128 are flush. With the above settings, the first sub-part 3129, the second sub-part 3119, the third sub-part 3118, and the fourth sub-part 3128 can form a partial support plane N.

[0121] When the rotating shaft assembly 300 is in the folded state, the first link 321 of the first rotating part 320a can rotate relative to the main shaft 100 by a certain angle, the second link 322 of the first rotating part 320a can rotate relative to the main shaft 100 by a certain angle, and the first link 321 of the second rotating part 320b can rotate relative to the main shaft 100 by a certain angle, and the second link 322 of the second rotating part 320b can rotate relative to the main shaft 100 by a certain angle. In the second direction Y, the distance between the first end 3129a of the first sub-part and the first end 3128a of the fourth sub-part is greater than the distance between the second end 3129b of the first sub-part and the second end 3128b of the fourth sub-part. In the second direction Y, the distance between the first end 3119a of the second sub-part and the first end 3118a of the third sub-part is less than the distance between the second end 3119b of the second sub-part and the second end 3118b of the third sub-part, and the distance between the first end 3119a of the second sub-part and the first end 3118a of the third sub-part increases in the second direction Y. With the above settings, the flexible screen 30 can be bent into a water droplet shape or an approximate water droplet shape within the screen accommodating space M surrounded by the first sub-part 3129, the second sub-part 3119, the third sub-part 3118, the fourth sub-part 3128, and the main shaft 100, avoiding excessive extrusion of the flexible screen 30, thereby reducing the stress of the flexible screen 30.

[0122] Figure 11a This is a structural diagram of a main shaft 100 provided by an embodiment of the present application. Figure 11b This is a structural diagram of a support and cooperation part of a main shaft provided by an embodiment of the present application. Refer to Figure 11a andFigure 11b , the main shaft 100 may include a first arc-shaped chute 102. Exemplarily, the support fitting portion 100a may include a mounting groove 110. The mounting groove 110 includes two side walls 111 arranged along the first direction X, and each side wall 111 protrudes outwardly with a contact block 113. The surface of the contact block 113 facing the bottom 112 of the mounting groove is an arc surface. Correspondingly, the bottom 112 of the mounting groove may be an arc surface that mates with the contact block 113. Through the above arrangement, the bottom 112 of the mounting groove and the side walls 111 of the mounting groove jointly define two first arc-shaped chutes 102 that are oppositely arranged along the first direction X, and the two first arc-shaped chutes 102 arranged along the first direction X are used for rotatably connecting to the same first link 321. Further, each side wall 111 of the mounting groove has two contact blocks 113 arranged at intervals along the second direction Y. Through the above arrangement, the bottom 112 of the mounting groove and the contact blocks 113 jointly define four first arc-shaped chutes 102. The two first arc-shaped chutes 102 arranged along the first direction X form a first chute pair, and the two first chute pairs arranged along the second direction Y are arranged at intervals.

[0123] Figure 12 This is a structural diagram of a first link 321 provided by an embodiment of the present application. In some embodiments, the first link 321 of the second rotating portion 320b may have the same shape as the first link 321 of the first rotating portion 320a. Or, in some embodiments, the first link 321 of the second rotating portion 320b may also have a difference in shape structure from the first link 321 of the first rotating portion 320a, and it is possible to realize that the first link 321 of the second rotating portion 320b is respectively rotatably connected to the main shaft 100 of the second rotating portion 320b and the second link 322 of the second rotating portion 320b, and the first link 321 of the first rotating portion 320a is respectively rotatably connected to the main shaft 100 of the first rotating portion 320a and the second link 322 of the first rotating portion 320a.

[0124] Hereinafter, only the first rotating portion 320a will be taken as an example to illustrate the structure of the first link 321 of the first rotating portion 320a.

[0125] Among them, Figure 12 Figure (a) in is a structural diagram of the first link 321 from one perspective, Figure 12 Figure (b) in is a structural diagram of the first link 321 from another perspective. Refer to Figure 12, the first end 321a of the first link may include a first arc-shaped slider 3212. The first link 321 may further include a first body 3211. The first arc-shaped slider 3212 and the first body 3211 are connected, and the first arc-shaped slider 3212 is slidably connected to the first arc-shaped chute 102. Exemplarily, the first body 3211 is generally in a columnar structure. The surface of the first body 3211 close to the main shaft 100 may include a first mating surface 3211b, which is an arc-shaped surface and mates with the bottom 112 of the installation groove. The surface of the first link 321 away from the main shaft 100 along the third direction Z may include a first mounting surface 3211a, which is used to connect with the first part 311. Exemplarily, the first mounting surface 3211a may be a flat surface so as to connect with the first part 311.

[0126] Furthermore, the number of the first arc-shaped sliders 3212 may be two, and the two first arc-shaped sliders 3212 are respectively connected to two surfaces of the first body 3211 arranged along the first direction X. Through the above arrangement, the first link 321 can be installed in the installation groove 110 of the main shaft 100, and the first link 321 can be rotatably connected to the main shaft 100 by means of a virtual axis connection. Moreover, since the two first arc-shaped sliders 3212 are located on both sides of the first body 3211 along the first direction X, it is beneficial to improve the assembly compactness of the first link 321 and the main shaft 100, and thus beneficial to reduce the size of the rotating mechanism.

[0127] To sum up, in combination with Figure 10 , Figure 11a , Figure 11b and Figure 12 as shown, the first link 321 and the main shaft 100 are rotatably connected by the first arc-shaped slider 3212 and the first arc-shaped chute 102, and the first link 321 and the main shaft 100 are rotatably connected by means of a virtual axis connection. While the first arc-shaped slider 3212 slides in the first arc-shaped chute 102, the first link 321 can rotate relative to the main shaft 100.

[0128] When the two rotating shaft assemblies 300 are converted from the folded state to the unfolded state, the first arc-shaped slider 3212 slides in the first arc-shaped chute 102 in the direction close to the inside of the installation groove 110 (for example, the first arc-shaped slider 3212 of the first link 321 of the first rotating part 320a slides in the Figure 11b a1 direction, and the first arc-shaped slider 3212 of the first link 321 of the second rotating part 320b slides in the Figure 11b(When sliding in the a3 direction in the figure), the first arc-shaped slider 3212 slides into the first arc-shaped chute 102. The part of the first arc-shaped slider 3212 located in the first arc-shaped chute 102 gradually increases, so that the first ends 321a of the two first link rods 321 approach each other. Furthermore, the first end 3119a of the second sub-part and the first end 3118a of the third sub-part approach each other, which is beneficial to improving the support effect on the flexible screen 30.)

[0129] (When the two rotating shaft assemblies 300 are converted from the unfolded state to the folded state, the first arc-shaped slider 3212 slides in the first arc-shaped chute 102 in the direction close to the edge of the installation groove 110 (for example, the first arc-shaped slider 3212 of the first link rod 321 of the first rotating part 320a slides in the) Figure 11b (a2 direction in the figure), and the first arc-shaped slider 3212 of the first link rod 321 of the second rotating part 320b slides in the) Figure 11b (a4 direction in the figure), the first arc-shaped slider 3212 slides out of the first arc-shaped chute 102. The part of the first arc-shaped slider 3212 located in the first arc-shaped chute 102 gradually decreases, so that the first ends 321a of the two first link rods 321 move away from each other. Furthermore, the first end 3119a of the second sub-part and the first end 3118a of the third sub-part move away from each other, which is beneficial to further increasing the screen-containing space M enclosed by the first sub-part 3129, the second sub-part 3119, the third sub-part 3118, the fourth sub-part 3128, and the main shaft 100, thereby further improving the reliability of the flexible screen 30.)

[0130] (In addition, in some other embodiments, the main shaft 100 may include the first arc-shaped slider 3212, and the first end 321a of the first link rod may include the first arc-shaped chute 102, so that the first link rod 321 and the main shaft 100 are rotationally connected through the first arc-shaped slider 3212 and the first arc-shaped chute 102.)

[0131] Figure 13 (This is a structural diagram of a second link rod 322 provided by an embodiment of the present application. In some embodiments, the second link rod 322 of the second rotating part 320b may have the same shape as the second link rod 322 of the first rotating part 320a. Or, in some embodiments, the second link rod 322 of the second rotating part 320b may also have a difference in shape structure from the second link rod 322 of the first rotating part 320a, and it can be ensured that the second link rod 322 of the second rotating part 320b is respectively rotationally connected to the first link rod 321 of the second rotating part 320b and the bracket 324 of the second rotating part 320b, and the second link rod 322 of the first rotating part 320a is respectively rotationally connected to the first link rod 321 of the first rotating part 320a and the bracket 324 of the first rotating part 320a.)

[0132] Here, only the first rotating part 320a will be taken as an example to illustrate the structure of the first rotating part 320a and the second connecting rod 322.

[0133] Referring to Figure 13 , the first end 322a of the second connecting rod may include a second connection hole 3225. Exemplarily, the second connecting rod 322 may include a second main body 3221, and the second main body 3221 may be generally in a flat plate structure so that the second part 312 can be connected to the second main body 3221. The second connection hole 3225 is provided through the second main body 3221, and the central axis of the second connection hole 3225 is parallel to the first direction X.

[0134] Correspondingly, referring to Figure 12 and Figure 10 , the second end 321b of the first connecting rod may include a first connection hole 3213, and the central axis of the first connection hole 3213 is parallel to the first direction X. Among them, the second end 321b of the first connecting rod may be located on the side of the first main body 3211 close to the second connecting rod 322 so that the second end 321b of the first connecting rod can be rotatably connected to the second connecting rod 322. For example, the first connection hole 3213 may be provided through the first main body 3211. A pin shaft may be inserted into the first connection hole 3213 and the second connection hole 3225 so that the first end 322a of the second connecting rod and the second end 321b of the first connecting rod are rotatably connected, and the first main body 3211 and the second main body 3221 are rotatably connected by the rotation of a solid shaft, which is beneficial to improving the rotation accuracy and connection reliability between the first main body 3211 and the second main body 3221.

[0135] Referring to Figure 13 , the second end 322b of the second connecting rod may further include a second arc-shaped slider 3223, and the second main body 3221 is connected to the second arc-shaped slider 3223. Exemplarily, the second connecting rod 322 may include two second arc-shaped sliders 3223 arranged along the first direction X, and the two second arc-shaped sliders 3223 are respectively connected to both sides of the second main body 3221.

[0136] Figure 14 FIG. 324 is a structural diagram of a bracket 324 provided by an embodiment of the present application. Among them, Figure 14 FIG. (a) in Figure 14, the bracket 324 may include a second arc-shaped chute 3241, and the second arc-shaped slider 3223 is slidably connected to the second arc-shaped chute 3241. Exemplarily, the bracket 324 may include two second arc-shaped chutes 3241, and one second arc-shaped slider 3223 of the second link 322 may be slidably connected to one second arc-shaped chute 3241 of the bracket 324. Through the above arrangement, the second link 322 and the bracket 324 are connected through the second arc-shaped slider 3223 and the second arc-shaped chute 3241, so that the second link 322 is rotatably connected to the bracket 324 in a manner of being connected by a virtual axis.

[0137] Further, the second link 322 and the bracket 324 are connected by a virtual axis, so that the rotation axis of the second link 322 relative to the bracket 324 can be closer to the flexible screen 30, avoiding pulling the flexible screen 30 during the rotation of the rotating shaft assembly 300, which is beneficial to improving the reliability of the flexible screen 30.

[0138] In addition, in some other embodiments, the second end 322b of the second link may include a second arc-shaped chute 3241, and the bracket 324 may include a second arc-shaped slider 3223, so that the second link 322 and the bracket 324 are connected through the second arc-shaped slider 3223 and the second arc-shaped chute 3241.

[0139] In some embodiments, the first link 321 and the second link 322 may participate in the main movement of the rotating shaft assembly 300 to drive the rotating shaft assembly 300 to rotate relative to the main shaft 100.

[0140] Figure 15 This is a structural diagram of a third link 323 provided by an embodiment of the present application. Combining Figure 10 and Figure 15 As shown, in some embodiments, the first rotating part 320a may further include a third link 323. The third link 323 and the second link 322 may be arranged in sequence along the first direction X, which is beneficial to reducing the thickness of the first rotating part 320a, and thus beneficial to realizing the thinning and lightening of the folding electronic device. In the first rotating part 320a, the first end 323a of the third link is rotatably connected to the first link 321, and the second end 323b of the third link is rotatably connected to the bracket 324 of the first rotating part 320a.

[0141] Wherein, the movement principle of the structural components in the second rotating part 320b may be the same as that of the structural components in the first rotating part 320a. And the related structures of the second rotating part 320b may also be the same as the related structures of the first rotating part 320a. For example, the second rotating part 320b may further include a third link 323. In the second rotating part 320b, the first end 323a of the third link is rotatably connected to the first link 321, and the second end 323b of the third link is rotatably connected to the bracket 324 of the second rotating part 320b.

[0142] In some embodiments, the third link 323 of the second rotating part 320b may have the same shape as the third link 323 of the first rotating part 320a. Alternatively, in some embodiments, the third link 323 of the second rotating part 320b may also have a difference in shape structure from the third link 323 of the first rotating part 320a, and it can be realized that the third link 323 of the second rotating part 320b is respectively rotationally connected to the first link 321 of the second rotating part 320b and the bracket 324 of the second rotating part 320b, and the third link 323 of the first rotating part 320a is respectively rotationally connected to the first link 321 of the first rotating part 320a and the bracket 324 of the first rotating part 320a.

[0143] Hereinafter, only the first rotating part 320a will be taken as an example to illustrate the structure of the third link 323 of the first rotating part 320a.

[0144] Among them, as Figures 12 to 15 shown, the rotation axis of the third link 323 relative to the first link 321 is the first axis s1. Combining Figure 10 , the first axis s1 is parallel to the first direction X. The rotation axis of the third link 323 relative to the bracket 324 is the third axis s3, and the third axis s3 is parallel to the first direction X. The rotation axis of the second link 322 relative to the bracket 324 is the fourth axis s4, and the rotation axis of the second link 322 relative to the first link 321 is the second axis s2. As described in the above embodiments, both the second axis s2 and the fourth axis s4 are parallel to the first direction X.

[0145] Among them, the second end 323b of the third link may include a third connection hole 3233. Exemplarily, the third link 323 may include a third main body 3231, and the third main body 3231 may be generally in a plate-like structure. The third connection hole 3233 is disposed through the third main body 3231, and the axis of the third connection hole 3233 is parallel to the first direction X. Correspondingly, combining Figure 14 , the bracket 324 may include a bracket connection hole 3242, and the central axis of the bracket connection hole 3242 is parallel to the first direction X. The pin shaft can be passed through the third connection hole 3233 and the bracket connection hole 3242 so that the third main body 3231 and the bracket 324 are rotationally connected by means of the rotation of the solid shaft.

[0146] It can be understood that since the rotation mode of the virtual axis requires the setting of a matching arc-shaped chute and arc-shaped slider, more space needs to be occupied. Making the third link 323 and the bracket 324 rotationally connected by means of the connection of the solid shaft is beneficial to reducing the volume of the bracket 324 and improving the connection reliability between the third link 323 and the bracket 324.

[0147] Wherein, the first end 323a of the third link 323 may include a third arc-shaped slider 3232, and the third arc-shaped slider 3232 is connected to the third body 3231. Exemplarily, the third link 323 may include two third arc-shaped sliders 3232 arranged along the first direction X, and the two third arc-shaped sliders 3232 are respectively connected to both sides of the third body 3231. Combining Figure 12 , the first link 321 may include a third arc-shaped chute 3214, and the third arc-shaped slider 3232 is slidably connected to the third arc-shaped chute 3214. Exemplarily, the first link 321 may include two third arc-shaped chutes 3214, and one third arc-shaped slider 3232 of the third link 323 may be slidably connected to one third arc-shaped chute 3214 of the first link 321. Through the above arrangement, the third link 323 and the first link 321 are rotationally connected through the third arc-shaped slider 3232 and the third arc-shaped chute 3214, so that the third link 323 is rotationally connected to the first link 321 in a connection manner through a virtual axis.

[0148] Alternatively, in some other embodiments, the first end 323a of the third link may include a third arc-shaped chute 3214, and the first link 321 may include a third arc-shaped slider 3232, so that the third link 323 and the first link 321 are rotationally connected through the third arc-shaped slider 3232 and the third arc-shaped chute 3214.

[0149] Furthermore, the third link 323 and the first link 321 are connected through a virtual axis, so that the rotation axis of the third link 323 relative to the first link 321 can be further away from the flexible screen 30. Figure 16 FIG. is a partial cross-sectional view of a rotation mechanism 10 provided by an embodiment of the present application in a flat state; Figure 17 FIG. is a partial cross-sectional view of a rotation mechanism 10 provided by an embodiment of the present application in a folded state.

[0150] Referring to Figure 16 , when the two rotating shaft assemblies 300 are in a flat state, the distance between the second axis s2 and the reference plane F in the third direction Z is greater than the distance between the first axis s1 and the reference plane F in the third direction Z. The reference plane F is parallel to the first direction X and the second direction Y, and the farthest point of the appearance surface E from the support plane along the third direction Z (such as Figure 16 point K in) intersects with the reference plane F. Through the above arrangement, when the two rotating shaft assemblies 300 are in a flat state, the third link 323 is prevented from pushing against the flexible screen 30, which is beneficial to improving the flatness of the flexible screen 30.

[0151] Based on the above structure, when the two rotating shaft assemblies 300 are in the unfolded state, the distance between the fourth axis s4 and the reference plane F in the third direction Z is greater than the distance between the third axis s3 and the reference plane F in the third direction Z. Through the above arrangement, in the same rotating part 320, the first link 321, the second link 322, the third link 323 and the bracket 324 can jointly form a four-bar linkage mechanism, and the four-bar linkage mechanism can achieve the effect of the main motion and can drive other mechanisms connected between the bracket 324 and the main shaft 100 to move.

[0152] Exemplarily, the rotation axis of the first link 321 relative to the main shaft 100 is the overall rotation axis of the four-bar linkage mechanism. The rotation axes of the two first links 321 relative to the main shaft 100 do not coincide. For example, the rotation axis of the first link 321 of the first rotating part 320a relative to the main shaft 100 can be the rotation axis O1, and the rotation axis of the first link 321 of the second rotating part 320b relative to the main shaft 100 can be the rotation axis O1. Hereinafter, only the rotation axis of the four-bar linkage mechanism being the rotation axis O2 (that is, taking the second rotating part 320b as an example) will be used for illustration.

[0153] When the rotating shaft assembly 300 is converted from the folded state to the unfolded state, the four-bar linkage mechanism rotates as a whole around the rotation axis O2 so that the two opposite ends of the two first links 321 approach each other. At the same time, during the overall movement of the four-bar linkage mechanism, the second link 322 inside it rotates relative to the first link 321, and the third link 323 rotates relative to the first link 321 so that at least part of the first link 321 is flush with the second link 322.

[0154] When the rotating shaft assembly 300 is converted from the unfolded state to the folded state, the four-bar linkage mechanism rotates as a whole around the rotation axis O2 so that the two first links 321 rotate relative to the main shaft. At the same time, during the overall movement of the four-bar linkage mechanism, the second link 322 inside it rotates relative to the first link 321 around the second axis s2, and the third link 323 rotates relative to the first link 321 around the first axis s1 so that there is a certain bending angle between the first link 321 and the second link 322. In the second direction Y, the distance between the first ends 321a of the two first links 321 is less than the distance between the second ends 321b of the two first links 321, and the distance between the first ends 322a of the two second links 322 is greater than the distance between the second ends 322b of the two second links 322.

[0155] In some other embodiments, the first link 321 and the second link 322 may not participate in the main motion of the rotating shaft assembly 300, and the rotating shaft assembly 300 may also rotate under the drive of other main motion structures. In the actual use process, different main motion structures can be set in the rotating mechanism 10 according to different requirements.

[0156] Only taking the rotation module 400 at the edge position located in Figure 18 as an example, other main motion structures will be described. It should be noted that the main motion structure as Figure 18 shown can also be applied to the rotation module 400 at other positions at the same time. For example, it can be applied to the rotation module 400 at the middle position and the rotation module 400 at another edge position at the same time.

[0157] Figure 18 FIG. is an exploded view of the structure of another rotation module 400 provided by an embodiment of the present application. Figure 18 The structures of the first link 321 and the second link 322 in another embodiment are provided. Exemplarily, Figure 18 the first link 321 and the second link 322 in Figure 10 may not be exactly the same as the first link 321 and the second link 322 in Figure 18 For example, the length of the first link 321 in the first direction X in Figure 18 is shorter, and the width of the second link 322 in the second direction Y in

[0158] Figure 19 increases. Of course, the first link 321 and the second link 322 in the embodiments of the present application are not limited to the above two structures, and it is only necessary to enable the first link 321 to be rotatably connected to the main shaft 100, the first link 321 to the second link 322, and the second link 322 to the bracket 324. Figure 19 Referring to

[0159] Among them, the movement principle of the structural components in the second rotating part 320b can be the same as that of the structural components in the first rotating part 320a. Moreover, the relevant structures of the second rotating part 320b can also be the same as those of the first rotating part 320a. For example, the second rotating part 320b can also include a fourth link 325. In the second rotating part 320b, the first end 325a of the fourth link can be rotatably connected to the main shaft 100, and the second end 325b of the fourth link is rotatably connected to the bracket 324 of the second rotating part 320b. The rotation axis of the bracket 324 of the second rotating part 320b relative to the fourth link 325 and the rotation axis of the fourth link 325 relative to the main shaft 100 are both parallel to the first direction X.

[0160] In some embodiments, the fourth link 325 of the second rotating part 320b can have the same shape as the fourth link 325 of the first rotating part 320a. Or, in some embodiments, the fourth link 325 of the second rotating part 320b can also have a difference in shape structure from the fourth link 325 of the first rotating part 320a, as long as it can realize the rotational connection of the fourth link 325 of the second rotating part 320b to the main shaft 100 and the bracket 324 of the second rotating part 320b respectively, and the rotational connection of the fourth link 325 of the first rotating part 320a to the main shaft 100 and the bracket 324 of the first rotating part 320a respectively.

[0161] Hereinafter, only taking the first rotating part 320a as an example, the structure of the fourth link 325 of the first rotating part 320a will be described.

[0162] Combined with Figure 18 As shown, the rotation axis of the first link 321 relative to the main shaft 100 can be the fifth axis s5, and the rotation axis of the fourth link 325 relative to the main shaft 100 can be the sixth axis s6. In the embodiments of the present application, the relative positional relationship between the fifth axis s5 and the sixth axis s6 is not specifically limited. For example, the fifth axis s5 can coincide with the sixth axis s6, or the fifth axis s5 can also be spaced apart from the sixth axis s6.

[0163] Combined with Figure 18 As shown, the rotation axis of the bracket 324 of the first rotating part 320a relative to the fourth link 325 can be the seventh axis s7. Similarly, in the embodiments of the present application, the relative positional relationship between the seventh axis s7 and the fourth axis s4 is not specifically limited. For example, the seventh axis s7 can coincide with the fourth axis s4, or the seventh axis s7 can also be spaced apart from the fourth axis s4. By providing the fourth link 325, it is beneficial to further improve the connection reliability between the bracket 324 and the main shaft 100.

[0164] Among them, the second end 325b of the fourth link may include a fourth connection hole 3253. Exemplarily, the fourth link 325 may include a fourth main body 3251, the fourth main body 3251 may be generally in a plate-like structure, and the fourth connection hole 3253 may be disposed through the fourth main body 3251. Accordingly, in combination with Figure 18 As shown, the bracket 324 may further include a bracket connection hole 3242, and the pin shaft may be disposed through the fourth connection hole 3253 and the bracket connection hole 3242. Through the above arrangement, the second end 325b of the fourth link can be rotatably connected to the bracket 324, and the fourth main body 3251 and the bracket 324 can be rotatably connected by means of a solid shaft connection. As described in the above embodiment, the fourth link 325 and the bracket 324 are rotatably connected by means of a solid shaft connection, which is beneficial to reducing the volume of the bracket 324 and improving the connection reliability between the fourth link 325 and the bracket 324.

[0165] Among them, the first end 325a of the fourth link may include a fourth arc-shaped slider 3252, and the fourth arc-shaped slider 3252 may be connected to the fourth main body 3251. Figure 20 This is a structural diagram of another support and cooperation part 100a of the main shaft 100 provided by the embodiment of the present application. The main shaft 100 further includes a fourth arc-shaped chute 103, and the fourth arc-shaped slider 3252 is slidably connected to the fourth arc-shaped chute 103. Exemplarily, the support and cooperation part 100a may include at least two installation grooves 110, where at least one installation groove 110 is used for rotatably connecting with the first link 321, and at least one installation groove 110 is used for rotatably connecting with the fourth link 325. As described in the above embodiment, the groove bottom 112 of the installation groove and the contact block 113 jointly enclose two fourth arc-shaped chutes 103 that are oppositely arranged along the first direction X, and the two fourth arc-shaped chutes 103 that are oppositely arranged along the first direction X are used for rotatably connecting with the same fourth link 325. Further, the side wall 111 of each installation groove has two contact blocks 113 that are spaced apart along the second direction Y. Through the above arrangement, the groove bottom 112 of the installation groove and the side wall 111 of the installation groove jointly enclose four fourth arc-shaped chutes 103, and the two fourth arc-shaped chutes 103 that are oppositely arranged along the first direction X form a fourth chute pair, and the two fourth chute pairs arranged along the second direction Y are spaced apart.

[0166] Through the above arrangement, the first end 325a of the fourth link and the main shaft 100 are rotatably connected by the fourth arc-shaped slider 3252 and the fourth arc-shaped chute 103. When the fourth link 325 and the main shaft 100 are rotatably connected by means of a virtual shaft connection, while the fourth arc-shaped slider 3252 slides in the fourth arc-shaped chute 103, the fourth link 325 can rotate relative to the main shaft 100.

[0167] When the two rotating shaft assemblies 300 are converted from the folded state to the unfolded state, the fourth arc-shaped slider 3252 slides in the fourth arc-shaped chute 103 towards the direction close to the inside of the mounting groove 110 (for example, the fourth arc-shaped slider 3252 of the fourth connecting rod 325 of the first rotating part 320a slides towards Figure 20 the direction of b1 in Figure 20 , and the fourth arc-shaped slider 3252 of the fourth connecting rod 325 of the second rotating part 320b slides towards

[0168] the direction of b3 in Figure 20 ). The fourth arc-shaped slider 3252 slides into the fourth arc-shaped chute 103, and the part of the fourth arc-shaped slider 3252 located in the fourth arc-shaped chute 103 gradually increases, so that the first ends 325a of the two fourth connecting rods approach each other, which is beneficial to improving the supporting effect on the flexible screen 30. Figure 20 When the two rotating shaft assemblies 300 are converted from the unfolded state to the folded state, the fourth arc-shaped slider 3252 slides in the fourth arc-shaped chute 103 towards the direction close to the edge of the mounting groove 110 (for example, the fourth arc-shaped slider 3252 of the fourth connecting rod 325 of the first rotating part 320a slides towards

[0169] the direction of b2 in

[0170] Figure 21 , and the fourth arc-shaped slider 3252 of the fourth connecting rod 325 of the second rotating part 320b slides towards Figure 21 the direction of b4 in Figure 18 ). The fourth arc-shaped slider 3252 slides out of the fourth arc-shaped chute 103, and the part of the fourth arc-shaped slider 3252 located in the fourth arc-shaped chute 103 gradually decreases, so that the first ends 325a of the two fourth connecting rods move away from each other, which is beneficial to further increasing the screen-containing space enclosed by the first sub-part 3129, the second sub-part 3119, the third sub-part 3118, the fourth sub-part 3128 and the main shaft 100, thereby further improving the reliability of the flexible screen 30.

[0171] Among them, the movement principle of the structural components in the second rotating part 320b can be the same as that of the structural components in the first rotating part 320a. Also, the relevant structures of the second rotating part 320b can be the same as those of the first rotating part 320a. For example, the second rotating part 320b can also include a swing rod 510. In the second rotating part 320b, the first end 510a of the swing rod is rotatably connected to the main shaft 100, and the rotation axis of the swing rod 510 relative to the main shaft 100 is parallel to the first direction X. The second end 510b of the swing rod is slidably connected to the bracket 324, and the sliding direction of the swing rod 510 relative to the bracket 324 is not parallel to the length extension direction of the bracket 324.

[0172] In some embodiments, the swing rod 510 of the second rotating part 320b can have the same shape as the swing rod 510 of the first rotating part 320a. Or, in some embodiments, the swing rod 510 of the second rotating part 320b can also have a difference in shape structure from the swing rod 510 of the first rotating part 320a, as long as it can achieve the rotational connection between the swing rod 510 of the second rotating part 320b and the main shaft 100, the sliding connection between the swing rod 510 of the second rotating part 320b and the bracket 324 of the second rotating part 320b, the rotational connection between the swing rod 510 of the first rotating part 320a and the main shaft 100, and the sliding connection between the swing rod 510 of the first rotating part 320a and the bracket 324 of the first rotating part 320a.

[0173] Hereinafter, only the first rotating part 320a will be taken as an example to illustrate the structure of the fourth connecting rod 325 of the first rotating part 320a.

[0174] In some embodiments, the second end 510b of the swing rod can include a swing rod connection hole 512. Exemplarily, as shown in Figure 18 , the swing rod 510 can include a swing rod body 511, and the swing rod connection hole 512 can be disposed through the swing rod body 511. Correspondingly, the main shaft 100 can have a main shaft connection hole 121 that penetrates the main shaft 100 along the first direction X. A pin shaft can be inserted into the main shaft connection hole 121 and the swing rod connection hole 512, so that the swing rod body 511 and the main shaft 100 are rotatably connected through the pin shaft. Through the above arrangement, the swing rod body 511 and the main shaft 100 can be rotatably connected by means of a solid shaft connection, which is beneficial to improving the connection reliability and rotational accuracy between the swing rod body 511 and the main shaft 100.

[0175] Based on the above structure, in combination with Figure 18 and Figure 21As shown, the first end 510a of the swing rod may include a swing rod slider 513. The swing rod slider 513 may be connected to the swing rod body 511. The bracket 324 may include a bracket chute 3245. The swing rod slider 513 is slidably connected to the bracket chute 3245. Exemplarily, the extending direction of the bracket chute 3245 may be perpendicular to the extending direction of the bracket 324. The slider slides within the bracket chute 3245 so that the swing rod 510 can be slidably connected to the bracket 324.

[0176] Figure 22 FIG. is a partial sectional view of another rotating mechanism 10 provided by an embodiment of the present application in an unfolded state; Figure 23 FIG. is a partial sectional view of another rotating mechanism 10 provided by an embodiment of the present application in a folded state. Refer to Figure 22 and Figure 23 During the process of the two rotating shaft assemblies 300 being converted from the unfolded state to the folded state, the bracket 324 of the first rotating portion 320a slides away from the main shaft 100 relative to the swing rod 510 of the first rotating portion 320a, and the bracket 324 of the second rotating portion 320b slides away from the main shaft 100 relative to the swing rod 510 of the second rotating portion 320b; during the process of the two rotating shaft assemblies 300 being converted from the folded state to the unfolded state, the bracket 324 of the first rotating portion 320a slides towards the main shaft 100 relative to the swing rod 510 of the first rotating portion 320a, and the bracket 324 of the second rotating portion 320b slides towards the main shaft 100 relative to the swing rod 510 of the second rotating portion 320b. Through the above arrangement, it is beneficial to adjust the length between the two brackets 324. During the folding or unfolding process of the two rotating shaft assemblies 300, it is beneficial to ensure that the length of the flexible screen 30 does not change, and to improve the phenomenon of extrusion or stretching of the rotating mechanism 10 on the flexible screen 30.

[0177] Combined with Figure 10 As shown, when the two swing rods 510 cooperate with the first link 321, the second link 322, and the third link 323 in the above embodiment, the swing rods 510 are beneficial to further restrict the degrees of freedom of the movement of the above four-bar mechanism, and are beneficial to improving the movement accuracy of the above four-bar mechanism.

[0178] It can be understood that, combined with Figure 22 and Figure 23, during the process of the two rotating shaft assemblies 300 being converted from the unfolded state to the folded state, the bracket 324 of the first rotating part 320a can slide away from the main shaft 100 relative to the swing rod 510 of the first rotating part 320a, and the bracket 324 of the second rotating part 320b can slide away from the main shaft 100 relative to the swing rod 510 of the second rotating part 320b, so that when the two rotating shaft assemblies 300 are in the folded state, there is a certain distance between the flexible screen 30 and the main shaft 100. The back cover 101 is located on the side of the main shaft 100 away from the flexible screen 30. The back cover 101 is provided with two flanges 1013 along the second direction Y, and the two flanges 1013 are located on both sides of the flexible screen 30 along the second direction Y. The flanges 1013 of the back cover 101 can shield a part of the flexible screen 30 along the second direction Y, playing a protective role for the flexible screen 30.

[0179] In summary, when the two rotating shaft assemblies 300 are in the folded state, the distance between the first ends 321a of the two first linkages in the second direction Y increases, so that the screen-containing space M increases. Correspondingly, during the process of the two rotating shaft assemblies 300 being converted from the unfolded state to the folded state, the bracket 324 of the first rotating part 320a can slide a short distance away from the main shaft 100 relative to the swing rod 510 of the first rotating part 320a, and the bracket 324 of the second rotating part 320b can slide a short distance away from the main shaft 100 relative to the swing rod 510 of the second rotating part 320b, so that the flexible screen 30 can move towards the direction close to the main shaft 100. In the embodiment of the present application, the flanges 1013 of the back cover 101 are relatively low. When the two rotating shaft assemblies 300 are in the unfolded state, while ensuring the thinness and lightness of the folding electronic device 1, the thickness of the rotating shaft assembly 300 at the position facing the flanges 1013 of the back cover 101 increases, which is beneficial to improving the strength of the rotating shaft assembly 300.

[0180] Figure 24 This is the main motion schematic diagram of another rotating mechanism 10 provided by the embodiment of the present application. Combining Figure 18 and Figure 24 , when the two swing rods 510 cooperate with the first linkage 321, the second linkage 322 and the fourth linkage 325 in the above embodiment, the main shaft 100, the fourth linkage 325, the swing rod 510 and the bracket 324 together form a crank-slider mechanism, and the crank-slider mechanism can achieve the effect of main motion. While the crank-slider mechanism plays the role of main motion, the first linkage 321 and the second linkage 322 play the effect of auxiliary motion.

[0181] It can be understood that the crank-slider mechanism, also known as the crank-connecting rod mechanism, is a planar link mechanism that uses a crank and a slider to achieve the mutual conversion between rotation and translation. In the crank-slider mechanism, the component that forms a sliding pair with the frame is the slider, and the component that connects the crank and the slider through a rotating pair is the connecting rod. In the embodiments of the present application, the swing rod 510 is equivalent to the frame in the crank-slider mechanism, the bracket 324 is equivalent to the slider in the crank-slider mechanism, the main shaft 100 is equivalent to the crank in the crank-slider mechanism, and the fourth connecting rod 325 is equivalent to the connecting rod in the crank-slider mechanism.

[0182] When the rotating shaft assembly 300 is converted from the folded state to the unfolded state, the bracket 324 of the first rotating portion 320a slides relative to the swing rod 510 of the first rotating portion 320a in a direction approaching the main shaft 100, and the bracket 324 of the second rotating portion 320b slides relative to the swing rod 510 of the second rotating portion 320b in a direction approaching the main shaft 100, so that the first ends 321a of the two first connecting rods approach each other. At the same time, the second connecting rod 322 rotates relative to the first connecting rod 321, and the third connecting rod 323 rotates relative to the first connecting rod 321, so that at least a part of the first connecting rod 321 and the second connecting rod 322 are flush.

[0183] When the rotating shaft assembly 300 is converted from the unfolded state to the folded state, the bracket 324 of the first rotating portion 320a slides relative to the swing rod 510 of the first rotating portion 320a in a direction away from the main shaft 100, and the bracket 324 of the second rotating portion 320b slides relative to the swing rod 510 of the second rotating portion 320b in a direction away from the main shaft 100, so that the first ends 321a of the two first connecting rods move away from each other. At the same time, the second connecting rod 322 rotates relative to the first connecting rod 321, and the third connecting rod 323 rotates relative to the first connecting rod 321, so that there is a certain bending angle between the first connecting rod 321 and the second connecting rod 322. In the second direction Y, the distance between the first ends 321a of the two first connecting rods is smaller than the distance between the second ends 321b of the two first connecting rods, and the distance between the first ends 322a of the two second connecting rods is greater than the distance between the second ends 322b of the two second connecting rods.

[0184] In some other embodiments, the first part 311 and the second part 312 can also adopt other driving methods. Figure 25 This is a partial exploded view of another rotating mechanism 10 provided by the embodiments of the present application. As Figure 25As shown, the first rotating part 320a may include the above-mentioned first link 321 and fourth link 325. Among them, one end of the fourth link 325 is rotatably connected to the main shaft 100 in a manner of connecting through a virtual axis, and the other end of the fourth link 325 may be rotatably connected to the bracket 324 of the first rotating part 320a in a manner of connecting through a physical axis. The first link 321 may be rotatably connected to the main shaft 100 in a manner of connecting through a virtual axis, and the first link 321 may also be connected to the swing rod 510 so that the swing rod 510 can drive the first link 321 to rotate relative to the main shaft 100. Of course, in some other examples, the first link 321 may also be connected to the fourth link 325 so that the fourth link 325 can drive the first link 321 to rotate relative to the main shaft 100.

[0185] In the embodiment where the first rotating part 320a includes the first link 321 and the fourth link 325, the first part 311 of the first support door panel 310a may be connected to the first link 321, that is, the second sub-part 3119 may be connected to the first link 321 so that the first link 321 can drive the second sub-part 3119 to rotate relative to the main shaft 100. Based on the above structure, one end of the second part 312 of the first support door panel 310a may be connected to the fourth link 325, and the other end of the second part 312 of the first support door panel 310a may be rotatably connected to the bracket 324. For example, one end of the first sub-part may be connected to the fourth link 325, and the other end of the first sub-part may be rotatably connected to the bracket 324.

[0186] As described in the above embodiment, the movement principle of the structural components in the second rotating part 320b may be the same as that of the structural components in the first rotating part 320a. Moreover, the relevant structures of the second rotating part 320b may also be the same as those of the first rotating part 320a. For example, the second rotating part 320b may also include the above-mentioned first link 321 and fourth link 325, which will not be elaborated here. In the embodiment where the second rotating part 320b includes the first link 321 and the fourth link 325, the first part 311 of the second support door panel 310b may be connected to the first link 321, that is, the third sub-part 3118 may be connected to the first link 321 so that the first link 321 can drive the third sub-part 3118 to rotate relative to the main shaft 100. Based on the above structure, one end of the second part 312 of the second support door panel 310b may be connected to the fourth link 325, and the other end of the second part 312 of the second support door panel 310b may be rotatably connected to the bracket 324 of the second rotating part 320b. For example, one end of the fourth sub-part may be connected to the fourth link 325, and the other end of the fourth sub-part may be rotatably connected to the bracket 324.

[0187] Figure 26 This is another partial structure diagram of the second part 312 provided by the embodiment of the present application. Among them,Figure 26 In FIG. (a), it is a structural diagram of the second part 312 from one perspective, and in FIG. (b), it is a structural diagram of the second part 312 from another perspective. In some embodiments, the structures of the first sub-part 3129 and the fourth sub-part 3128 may be the same. Alternatively, in some embodiments, the structures of the first sub-part 3129 and the fourth sub-part 3128 may also be different, and it is possible to achieve that one end of the second part 312 of the first support door panel 310a can be connected to the fourth link 325, the other end of the second part 312 of the first support door panel 310a can be rotatably connected to the bracket 324, one end of the second part 312 of the second support door panel 310b can be connected to the fourth link 325, and the other end of the second part 312 of the second support door panel 310b can be rotatably connected to the bracket 324 of the second rotating part 320b.

[0188] Hereinafter, the second part 312 will be described only by taking the first sub-part 3129 as an example.

[0189] Combined with Figure 26 As shown, the first sub-part 3129 may include a first connecting plate 3121, and the first connecting plate 3121 has a mating hole 3123. The distance between the end of the mating hole 2123 close to the main shaft 100 and the support plane N is less than the distance between the end of the mating hole 2123 far from the main shaft and the support plane N. Correspondingly, combined with Figure 25 As shown, the fourth link 325 further includes an avoidance groove 3257, and the groove wall of the avoidance groove 3257 has a through hole 3254 penetrating it, and the extending direction of the through hole 3254 is parallel to the first direction X. The first connecting plate 3121 of the first sub-part 3129 is located in the avoidance groove 3257 of the fourth link 325, and a pin shaft is inserted into the mating hole 3123 of the first sub-part 3129 and the through hole 3254 of the fourth link 325. When the pin shaft slides along the strip hole of the first sub-part 3129, the first sub-part 3129 rotates relative to the fourth link 325. Through the above settings, the first sub-part 3129 and the fourth link 325 are slidably connected.

[0190] Exemplarily, the second part 312 may further include a second connecting plate 3125, and the second connecting plate 3125 further has a fifth arc-shaped slider 3127 protruding outward. Correspondingly, the bracket 324 may further include a fifth arc-shaped sliding groove 3243, and the fifth arc-shaped slider 3127 can be slidably connected to the fifth arc-shaped sliding groove 3243, so that the second part 312 and the bracket 324 can be rotatably connected by a virtual axis connection method.

[0191] It can be understood that the second part 312 and the fourth link 325 may also be slidably connected in other ways, and the second part 312 and the bracket 324 may also be rotatably connected in other ways. The present application does not limit this.

[0192] Figure 27 is Figure 25 a sectional view along the F-F section line when the rotating mechanism 10 in Figure 28 is Figure 25 a sectional view along the F-F section line when the rotating mechanism 10 in Figure 27 and Figure 28 , when the two rotating shaft assemblies 300 rotate, when the bracket 324 drives the fourth link 325 to rotate relative to the main shaft 100, the fifth arc-shaped slider 3127 of the second part 312 slides along the fifth arc-shaped chute 3243 of the bracket 324, so that the second part 312 rotates relative to the bracket 324, and the pin shaft connected to the fourth link 325 slides along the strip-shaped hole of the second part 312. When the two rotating shaft assemblies 300 are in the unfolded state, the first sub-part 3129, the second sub-part 3119, the third sub-part 3118 and the fourth sub-part 3128 together form a support plane N, improving the flatness of the flexible screen 30 in the unfolded state. When the two rotating shaft assemblies 300 are in the folded state, in the second direction Y, the distance between the first end 3129a of the first sub-part and the first end 3128a of the fourth sub-part is greater than the distance between the second end 3129b of the first sub-part and the second end 3128b of the fourth sub-part. In the second direction Y, the distance between the first end 3119a of the second sub-part and the first end 3118a of the third sub-part is less than the distance between the second end 3119b of the second sub-part and the second end 3118b of the third sub-part. The increase in the distance between the first end 3119a of the second sub-part and the first end 3118a of the third sub-part in the second direction Y can cause the flexible screen 30 to be bent into a water droplet shape or an approximate water droplet shape, avoiding excessive extrusion of the flexible screen 30, thereby reducing the stress of the flexible screen 30 and improving the reliability of the flexible screen 30.

[0193] In some embodiments, in the first support door panel 310a, the first part 311 and the second part 312 can be two independent structures, and the first part 311 and the second part 312 are spaced apart. For example, the first sub-part 3129 and the second sub-part 3119 can be two independent structures. In the second support door panel 310b, the first part 311 and the second part 312 can be two independent structures, and the first part 311 and the second part 312 are spaced apart. For example, the third sub-part 3118 and the fourth sub-part 3128 can be two independent structures.

[0194] Figure 29 is another structural diagram of the support door panel 310 provided by the embodiment of the present application. Or, in some other embodiments, such as Figure 29As shown, the support door panel 310 may further include a bent portion 313, and the bent portion 313 is connected between the first portion 311 and the second portion 312. For example, in the first support door panel 310a, the bent portion 313 may be connected between the first sub-portion 3129 and the second sub-portion 3119; in the second support door panel 310b, the bent portion 313 may be connected between the third sub-portion 3118 and the fourth sub-portion 3128.

[0195] In some embodiments, the structures of the first support door panel 310a and the second support door panel 310b may be the same. Of course, in some other embodiments, the structures of the first support door panel 310a and the second support door panel 310b may also be different, and the embodiments of the present application do not specifically limit this. Hereinafter, only the first support door panel 310a will be taken as an example for illustration.

[0196] Among them, when the two rotating shaft assemblies 300 are in the unfolded state, the bent portion 313 is flattened; when the two rotating shaft assemblies 300 are in the folded state, the bent portion 313 is bent. Through the above arrangement, the bent portion 313 can fill the gap between the first portion 311 and the second portion 312. For example, in the first support door panel 310a, the bent portion 313 can fill the gap between the first sub-portion 3129 and the second sub-portion 3119. When the two rotating shaft assemblies 300 are in the unfolded state, it is beneficial to further improve the support effect of the support door panel 310 on the flexible screen 30.

[0197] Among them, the center of the bent portion 313 may be located on the rotation axis of the second link 322 relative to the first link 321. As described in the above embodiments, the rotation axis of the second link 322 relative to the first link 321 is the second axis s2, that is, the center of the bent portion 313 may be located on the second axis s2. When the second link 322 rotates relative to the first link 321, there is an angle between the second link 322 and the first link 321, and the bent portion 313 is bent under the drive of the first link 321 and the second link 322. Of course, in some other embodiments, the center of the bent portion 313 may also have a certain distance from the second axis s2, as long as the bent portion 313 can be bent when the first link 321 and the second link 322 rotate. The embodiments of the present application do not specifically limit the position of the bent portion 313.

[0198] Figure 30 is Figure 29 a partial enlarged view of the N position of the support door panel 310 in. As Figure 30As shown, the bending portion 313, the first sub-portion 3129 and the second sub-portion 3119 are an integral structure. Exemplarily, the integral structure formed by the bending portion 313, the first sub-portion 3129 and the second sub-portion 3119 can be a substantially flat plate structure. The above arrangement is conducive to improving the structural reliability of the supporting door panel 310.

[0199] In some embodiments, the bending portion 313 may have a plurality of openings 3131 , which is beneficial to reducing the rigidity of the bending portion 313 and reducing the elastic force of the bending portion 313 on the flexible screen 30 when bending, thereby improving the bending feel of the supporting door panel 310 .

[0200] Exemplarily, the opening 3131 may pass through the bending portion 313, the shape of the opening 3131 may include a strip-shaped hole, and the extension direction of the opening 3131 may be parallel to the first direction X. Through the above arrangement, it is helpful to further reduce the elastic force of the bending portion 313 on the flexible screen 30 when bending, thereby further improving the bending feel of the supporting door panel 310. Of course, in some other examples, the shape of the opening 3131 may also be a circular hole, an elliptical hole, etc., and the embodiment of the present application does not specifically limit the shape of the opening 3131.

[0201] Figure 31 A structural diagram of another supporting door panel 310 provided in an embodiment of the present application; Figure 32 for Figure 31 A cross-sectional view of a supporting door panel 310 along the GG section line. Figure 31 and Figure 32 In some other embodiments, the thickness of the bent portion 313 may be less than the thickness of the first portion 311, and the thickness of the bent portion 313 may be less than the thickness of the second portion 312, and the first sub-portion 3129, the second sub-portion 3119 and the bent portion 313 are an integral structure. Exemplarily, the integral structure formed by the first sub-portion 3129, the second sub-portion 3119 and the bent portion 313 may be a substantially flat plate structure. The bent portion 313 may be thinned so that the thickness of the bent portion 313 is less than the thickness of the first sub-portion 3129, and the thickness of the bent portion 313 is also less than the thickness of the second sub-portion 3119. For example, the surfaces of the first sub-portion 3129, the second sub-portion 3119 and the bent portion 313 facing away from the rotating portion 320 are coplanar, and the surface of the bent portion 313 on the side close to the rotating portion 320 is concave compared to the surfaces of the first sub-portion 3129 and the second sub-portion 3119 close to the rotating portion 320. The above arrangement is helpful to reduce the rigidity of the bending portion 313 and the elastic force of the bending portion 313 on the flexible screen 30 when bending, thereby improving the bending feel of the supporting door panel 310 .

[0202] Further, the surfaces of the first sub - portion 3129, the second sub - portion 3119, and the side of the bending portion 313 away from the rotating portion 320 are coplanar, which is beneficial to improving the supporting effect of the supporting door panel 310 on the flexible screen 30. Of course, in some other embodiments, the surfaces of the first sub - portion 3129, the second sub - portion 3119, and the side of the bending portion 313 close to the rotating portion 320 are coplanar, and the surface of the bending portion 313 away from the rotating portion 320 is recessed compared with the surfaces of the first sub - portion 3129 and the second sub - portion 3119 away from the rotating portion 320.

[0203] Figure 33 For Figure 31 Another cross - sectional view of the supporting door panel 310 along the G - G section line. Combining Figure 31 and Figure 33 In some other embodiments, the supporting door panel 310 may further include a flexible layer 314. The flexible layer 314 is connected to the same side of the first sub - portion 3129 and the second sub - portion 3119, and the flexible layer 314 located between the first sub - portion 3129 and the second sub - portion 3119 is the bending portion 313. Exemplarily, the flexible layer 314 may be stacked with the first sub - portion 3129 and the second sub - portion 3119 respectively, and the flexible layer 314 may be located on the side of the first sub - portion 3129 and the second sub - portion 3119 away from the rotating portion 320. The flexible layer 314 may be bonded to the first sub - portion 3129 and the second sub - portion 3119 respectively. Among them, the material of the flexible layer 314 may include, for example, Kevlar fiber cloth, flexible thin - film materials such as Polyethylene terephthalate (PET), Polyimide (PI), etc., so that the flexible layer 314 can have a good bending effect. When the two rotating shaft assemblies 300 are in a flat state, the flexible layer 314 located between the first sub - portion 3129 and the second sub - portion 3119 is flattened, which is beneficial to further improving the supporting effect of the supporting door panel 310 on the flexible screen 30; when the two rotating shaft assemblies 300 are in a folded state, the flexible layer 314 located between the first sub - portion 3129 and the second sub - portion 3119 is bent.

[0204] Further, the flexible layer 314 may be located on the side of the first sub - portion 3129 and the second sub - portion 3119 away from the rotating portion 320, which is beneficial to improving the supporting effect of the supporting door panel 310 on the flexible screen 30. Of course, in some other examples, the flexible layer 314 may also be located on the side of the first sub - portion 3129 and the second sub - portion 3119 close to the rotating portion 320, and the embodiments of the present application do not specifically limit this.

[0205] Further, the two swing rods 510 arranged along the second direction Y are called a pair of swing rods. The number of pairs of swing rods is not limited in the embodiments of the present application. As Figure 10As shown, taking the rotating module 400 located in the middle as an example, the rotating module 400 may include four swing rod pairs. Two of the swing rod pairs may be located on one side of the first connecting rod 321 along the first direction X, and the second structural part 410 includes these two swing rod pairs to achieve the synchronous rotation of the two rotating shaft assemblies 300. In addition, two swing rod pairs may be located on the other side of the first connecting rod 321 along the first direction X, and the first structural part 420 includes these other two swing rod pairs to provide a damping force when the two rotating shaft assemblies 300 rotate. As described in the above embodiment, the main shaft 100 may further include a first mating part 100b and a second mating part 100c located on both sides of the support mating part 100a. Among them, the first mating part 100b is used for mating connection with the first structural part 420; the second mating part 100c is used for mating connection with the second structural part 410.

[0206] Figure 34 It is an exploded view of the structure of a first structural part 420 provided by an embodiment of the present application; Figure 35 It is a structural diagram of a first mating part of a main shaft provided by an embodiment of the present application. The following refers to Figure 34 and in combination with Figure 35 to describe the structures of the first mating part 100b and the first structural part 420. As described in the above embodiment, the main shaft 100 and the swing rod 510 may be rotatably connected by a pin shaft. Among them, in the first mating part 100b, the pin shaft connecting the main shaft 100 and the swing rod 510 may be referred to as the first rotating shaft 131. The first mating part 100b may include a first mounting part 120, and the first mounting part 120 has a main shaft connection hole 121 penetrating therethrough.

[0207] Furthermore, the first mating part 100b may further include a first sliding groove 141 and a second sliding groove 142 arranged at intervals along the first direction X, and the first mounting part 120 is located between the first sliding groove 141 and the second sliding groove 142. Among them, both the first sliding groove 141 and the second sliding groove 142 extend along the first direction X. Correspondingly, the first structural part 420 may include two damping sliders 143. One of the damping sliders 143 may be slidably connected to the first sliding groove 141 so that one damping slider 143 can slide relative to the main shaft 100 along the first direction X; the other damping slider 143 may be slidably connected to the second sliding groove 142 so that the other damping slider 143 can slide relative to the main shaft 100 along the first direction X.

[0208] Figure 36 It is a structural diagram of a damping slider 143 provided by an embodiment of the present application. As Figure 36 shown, the damping slider 143 may further include two first through holes 1431 arranged along the second direction Y, and the first through holes 1431 extend along the first direction X. In combination with Figure 34As shown, a first rotating shaft 131 is passed through a first through hole 1431 so that the damping slider 143 can also slide relative to the first rotating shaft 131 in the first direction X. In the damping slider 143, the surface adjacent to the first through hole 1431 and facing the first mounting portion 120 includes first convex portions 1432 and first concave portions 1433 alternately arranged in the circumferential direction of the first through hole 1431. Correspondingly, in the swing rod 510, the surface adjacent to the swing rod connection hole 512 and facing the damping slider 143 includes second convex portions 5121 and second concave portions 5122 alternately arranged in the circumferential direction of the swing rod connection hole 512. Wherein, when the two rotating shaft assemblies 300 are in the unfolded state or the folded state, the first concave portion 1433 meshes with the second convex portion 5121, and the first convex portion 1432 meshes with the second concave portion 5122; when the two rotating shaft assemblies 300 rotate relative to the main shaft 100, the first convex portion 1432 contacts the second convex portion 5121.

[0209] Based on the above structure, the first structural portion 420 may further include two first springs 132 arranged along the second direction Y. One first spring 132 may be sleeved on one first rotating shaft 131, and one end of one first spring 132 abuts against one damping slider 143, and the other end of one first spring 132 is fixed to the end of the first rotating shaft 131 by a snap ring 150. Wherein, when the two rotating shaft assemblies 300 are in the unfolded state or the folded state, the first spring 132 is in the first compressed state; when the two rotating shaft assemblies 300 rotate relative to the main shaft 100, the first spring 132 is in the second compressed state, and the length of the first spring 132 in the second compressed state is less than the length of the first spring 132 in the first compressed state.

[0210] Through the above arrangement, when the two rotating shaft assemblies 300 are in the unfolded state or the folded state, the first concave portion 1433 meshes with the second convex portion 5121, and the first convex portion 1432 meshes with the second concave portion 5122, and the first spring 132 is in the first compressed state. The elastic restoring force of the first spring 132 has a damping effect, and this elastic restoring force can abut against the swing rod 510 in the first direction X so that when there is no external force, the unfolded state and the folded state of the two rotating shaft assemblies 300 can be maintained. When the two rotating shaft assemblies 300 rotate, the first convex portion 1432 contacts the second convex portion 5121, causing the damping slider 143 to move along the first rotating shaft 131 in a direction away from the first mounting portion 120, so that the first spring 132 is further compressed and deformed, and the first spring 132 is in the second compressed state. At this time, the elastic restoring force of the first spring 132 has a damping effect.

[0211] Further, in the first mounting portion 120, the surface adjacent to the main shaft connection hole 121 and facing the swing rod 510 includes third convex portions 1211 and third concave portions 1212 that are alternately arranged in the circumferential direction of the main shaft connection hole 121. Among them, when the two rotating shaft assemblies 300 are in the unfolded state or the folded state, the first concave portion 1433 engages with the third convex portion 1211, and the first convex portion 1432 engages with the third concave portion 1212; when the two rotating shaft assemblies 300 rotate relative to the main shaft 100, the first convex portion 1432 contacts the third convex portion 1211. Through the above settings, when the two rotating shaft assemblies 300 are in the unfolded state or the folded state, the unfolded state and the folded state of the two rotating shaft assemblies 300 can be further maintained; when the two rotating shaft assemblies 300 rotate relative to the main shaft 100, the distance that the damping slider 143 moves along the first rotating shaft 131 in the direction away from the first mounting portion 120 increases, and the elastic restoring force of the first spring 132 increases, that is, the damping force increases.

[0212] Figure 37 Exploded view of the structure of a second structural portion 410 provided by an embodiment of the present application; Figure 38 Structural diagram of a second mating portion of a main shaft provided by an embodiment of the present application. The following refers to Figure 37 and in combination with Figure 38 to describe the structures of the second mating portion 100c and the second structural portion 410. As described in the above embodiment, the main shaft 100 and the swing rod 510 can be rotatably connected by a pin shaft. Among them, in the second mating portion 100c, the pin shaft connecting the main shaft 100 and the swing rod 510 can be referred to as the second rotating shaft 161. The second mating portion 100c may include a second mounting portion 122, and the second mounting portion 122 has a main shaft connection hole 121 penetrating therethrough.

[0213] Further, the second mating portion 100c may further include a third sliding groove 146 and a fourth sliding groove 144 that are spaced apart along the first direction X, and the fourth sliding groove 144 is located on the side of the third sliding groove 146 away from the second mounting portion 122. Among them, both the fourth sliding groove 144 and the third sliding groove 146 extend along the first direction X. Correspondingly, the second structural portion 410 may include a first synchronous slider 145 and a second synchronous slider 174. The first synchronous slider 145 can be slidably connected to the third sliding groove 146 so that the first synchronous slider 145 can slide relative to the main shaft 100 along the first direction X; the second synchronous slider 174 can be slidably connected to the fourth sliding groove 144 so that the second synchronous slider 174 can slide relative to the main shaft 100 along the first direction X.

[0214] Figure 39 Structural diagram of a first synchronous slider 145 provided by an embodiment of the present application. As Figure 39As shown, the first synchronization slider 145 further includes two third through holes 1221 arranged along the second direction Y, and the third through holes 1221 extend along the first direction X. In combination with Figure 37 As shown, a second rotating shaft 161 is inserted into one of the third through holes 1221, so that the first synchronization slider 145 can also slide relative to the second rotating shaft 161 along the first direction X. And the part of the first synchronization slider 145 inserted into the second rotating shaft 161 is also located between two swing rods 510 arranged along the first direction X. In the first synchronization slider 145, the surface adjacent to the first through hole 1431 and facing the swing rod 510 includes a first spiral surface 1223. Correspondingly, in the swing rod 510, the surface adjacent to the swing rod connection hole 512 and facing the first synchronization slider 145 includes a second spiral surface 515, and the second spiral surface 515 meshes with the first spiral surface 1223.

[0215] With the above arrangement, when a rotating shaft assembly 300 (such as the first rotating shaft assembly 300a) rotates, the swing rods 510 on the same side rotate relative to the main shaft 100, and the second spiral surface 515 rotates with the swing rod 510, so that the second spiral surface 515 pushes the first spiral surface 1223 of the first synchronization slider 145 on the same side, and the first synchronization slider 145 moves along the main shaft 100. The first spiral surface 1223 on the other side moves with the first synchronization slider 145, so that the first spiral surface 1223 pushes the second spiral surface 515 of the swing rod 510 on the other side, and further causes the swing rod 510 on the other side to also rotate relative to the main shaft 100 and drive another rotating shaft assembly 300 (such as the second rotating shaft assembly 300b) to rotate. Herein, "the same side" and "the other side" can be understood as that, relative to the central axis of the main shaft 100, a rotating shaft assembly 300, a swing rod 510, and a first spiral surface 1223 of the first synchronization slider 145 are on the same side, and another rotating shaft assembly 300, another swing rod 510, and another first spiral surface 1223 of the first synchronization slider 145 are on the other side. To sum up, with the above arrangement, the two swing rods 510 in a pair of swing rods 510 can rotate synchronously relative to the main shaft 100, so that the two rotating shaft assemblies 300 can achieve synchronous rotation.

[0216] Figure 40 The structural diagram of a second synchronization slider 174 provided by an embodiment of the present application. As Figure 40 shown, the second synchronization slider 174 further includes two fourth through holes 1743 arranged along the second direction Y, and the fourth through holes 1743 extend along the first direction X. In combination with Figure 37, a second rotating shaft 161 is passed through a fourth through hole 1743 so that the second synchronizing slider 174 can also slide relative to the second rotating shaft 161 in the first direction X. And the part of the second synchronizing slider 174 passing through the second rotating shaft 161 is also located on the side of the swing rod 510 away from the first synchronizing slider 145. In the second synchronizing slider 174, the surface adjacent to the fourth through hole 1743 and facing the swing rod 510 includes fourth convex portions 1741 and fourth concave portions 1742 alternately arranged in the circumferential direction of the fourth through hole 1743. Correspondingly, in the swing rod 510, the surface adjacent to the swing rod connection hole 512 and facing the second synchronizing slider 174 includes fifth convex portions 5123 and fifth concave portions 5124 alternately arranged in the circumferential direction of the swing rod connection hole 512. Wherein, when the two rotating shaft assemblies 300 are in the unfolded state or the folded state, the fifth concave portion 5124 meshes with the fourth convex portion 1741, and the fifth convex portion 5123 meshes with the fourth concave portion 1742; when the two rotating shaft assemblies 300 rotate relative to the main shaft 100, the fifth convex portion 5123 contacts the fourth convex portion 1741.

[0217] Based on the above structure, the second structural part 410 may further include two second springs 162 arranged along the second direction Y. One second spring 162 may be sleeved on one second rotating shaft 161, and one end of one second spring 162 abuts against the second synchronizing slider 174, and the other end of one second spring 162 is fixed to the end of the second rotating shaft 161 by a snap ring 150. Wherein, when the two rotating shaft assemblies 300 are in the unfolded state or the folded state, the second spring 162 is in the third compressed state; when the two rotating shaft assemblies 300 rotate relative to the main shaft 100, the second spring 162 is in the fourth compressed state, and the length of the second spring 162 in the fourth compressed state is less than the length of the second spring 162 in the third compressed state.

[0218] Through the above settings, when the two rotating shaft assemblies 300 are in the unfolded state or the folded state, the fifth concave portion 5124 meshes with the fourth convex portion 1741, and the fifth convex portion 5123 meshes with the fourth concave portion 1742, and the second spring 162 is in the third compressed state. The elastic restoring force of the second spring 162 has a damping effect, and this elastic restoring force can abut against the second synchronizing slider 174 in the first direction X so that when there is no external force, the unfolded state and the folded state of the two rotating shaft assemblies 300 can be maintained. When the two rotating shaft assemblies 300 rotate, the fifth convex portion 5123 contacts the fourth convex portion 1741, causing the second synchronizing slider 174 to move along the second rotating shaft 161 in a direction away from the second mounting portion 122, so that the second spring 162 is further compressed and deformed, and the second spring 162 is in the fourth compressed state. At this time, the elastic restoring force of the second spring 162 has a damping effect.

[0219] In summary, while the second structural part 410 drives the two swing rods 510 to rotate synchronously, it can also provide a damping force when the two rotating shaft assemblies 300 rotate.

[0220] The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A rotating mechanism, characterized in that, Comprising: A main shaft (100) extending along a first direction (X); Two rotating shaft assemblies (300), including a first rotating shaft assembly (300a) and a second rotating shaft assembly (300b), the first rotating shaft assembly (300a) is rotationally connected to the main shaft (100), the second rotating shaft assembly (300b) is rotationally connected to the main shaft (100), and the rotational axes of the two rotating shaft assemblies (300) relative to the main shaft (100) are all parallel to the first direction (X) and do not coincide; A supporting door panel (300), including four sub-parts, the four sub-parts including a first sub-part (3129), a second sub-part (3119), a third sub-part (3118), and a fourth sub-part (3128); The first sub-part (3129) is connected to the first rotating shaft assembly (300a), and the second sub-part (3119) is connected to the first rotating shaft assembly (300a); the third sub-part (3118) is connected to the second rotating shaft assembly (300b), and the fourth sub-part (3128) is connected to the second rotating shaft assembly (300b); When the two rotating shaft assemblies (300) are in an unfolded state: the first sub-part (3129), the second sub-part (3119), the third sub-part (3118), and the fourth sub-part (3128) are arranged in sequence along a second direction (Y); the first sub-part (3129), the second sub-part (3119), the third sub-part (3118), and the fourth sub-part (3128) together form a supporting plane (N); in the second direction (Y), the second end (3129b) of the first sub-part, the first end (3129a) of the first sub-part, the second end (3119b) of the second sub-part, the first end (3119a) of the second sub-part, the first end (3118a) of the third sub-part, the second end (3118b) of the third sub-part, the first end (3128a) of the fourth sub-part, and the second end (3128b) of the fourth sub-part are arranged in sequence; the distance between the first end (3119a) of the second sub-part and the first end (3118a) of the third sub-part in the second direction (Y) is a first distance (D1); the second direction (Y) is perpendicular to the first direction (X); When the rotating mechanism (10) is converted from the unfolded state to the folded state, the first sub-part (3129), the second sub-part (3119), the third sub-part (3118), and the fourth sub-part (3128) rotate relative to the main shaft (100), and none of the four sub-parts of the supporting door panel (300) are bent; When the two shaft assemblies (300) are in the folded state: in the second direction (Y), the distance between the first end (3129a) of the first sub - part and the first end (3128a) of the fourth sub - part is greater than the distance between the second end (3129b) of the first sub - part and the second end (3128b) of the fourth sub - part; in the second direction (Y), the distance between the first end (3119a) of the second sub - part and the first end (3118a) of the third sub - part is less than the distance between the second end (3119b) of the second sub - part and the second end (3118b) of the third sub - part; the distance between the first end (3119a) of the second sub - part and the first end (3118a) of the third sub - part in the second direction (Y) is the second distance (D2), and the second distance (D2) is greater than the first distance (D1).

2. The rotating mechanism according to claim 1, wherein when the two shaft assemblies (300) are in the folded state, in the direction close to the main shaft (100), the distance between the first sub - part (3129) and the fourth sub - part (3128) in the second direction (Y) gradually increases, or the distance between the first sub - part (3129) and the fourth sub - part (3128) in the second direction (Y) first decreases and then increases.

3. The rotating mechanism according to claim 1, wherein when the two shaft assemblies (300) are in the folded state, in the direction close to the main shaft (100), the distance between the second sub - part (3119) and the third sub - part (3118) in the second direction (Y) gradually decreases.

4. The rotating mechanism according to any one of claims 1-3, characterized in that, The first shaft assembly (300a) includes a first connecting rod (321), a second connecting rod (322) and a bracket (324). The first end (321a) of the first connecting rod is rotatably connected to the main shaft (100), the second end (321b) of the first connecting rod is rotatably connected to the first end (322a) of the second connecting rod, the second end (322b) of the second connecting rod is rotatably connected to the bracket (324), and the rotation axis of the bracket (324) relative to the second connecting rod (322) is parallel to the first direction (X), the rotation axis of the second connecting rod (322) relative to the first connecting rod (321) is parallel to the first direction (X), and the rotation axis of the first connecting rod (321) relative to the main shaft (100) is parallel to the first direction (X); The first sub - part (3129) is connected to the first shaft assembly (300a), and the second sub - part (3119) is connected to the first shaft assembly (300a), including the first sub - part (3129) is connected to the second connecting rod (322), and the second sub - part (3119) is connected to the first connecting rod (321).

5. The rotating mechanism according to claim 4, characterized in that, The first sub - part (3129) is fixedly connected to the second link (322), and the second sub - part (3119) is fixedly connected to the first link (321).

6. The rotating mechanism according to claim 4 or 5, characterized in that, The first end (321a) of the first link is rotatably connected to the main shaft (100), including: the first end (321a) of the first link is rotatably connected to the main shaft (100) through a first arc - shaped slider (3212) and a first arc - shaped chute (102). The first end (321a) of the first link includes a first arc - shaped slider (3212), and the main shaft (100) includes a first arc - shaped chute (102); or, the first end (321a) of the first link includes a first arc - shaped chute (102), and the main shaft (100) includes a first arc - shaped slider (3212).

7. The rotating mechanism according to claim 6, characterized in that, The first end (322a) of the second link is connected to the second end (321b) of the first link by a pin shaft, and the second end (322b) of the second link is rotatably connected to the bracket (324), including: the second end (322b) of the second link is rotatably connected to the bracket (324) through a second arc - shaped slider (3223) and a second arc - shaped chute (3241). The second end (322b) of the second link includes a second arc - shaped slider (3223), and the bracket (324) includes a second arc - shaped chute (3241); or, the second end (322b) of the second link includes a second arc - shaped chute (3241), and the bracket (324) includes a second arc - shaped slider (3223).

8. The rotating mechanism according to any one of claims 4-7, characterized in that, The first rotating shaft assembly (300a) further includes a third link (323). The first end (323a) of the third link is rotatably connected to the first link (321), and the second end (323b) of the third link is rotatably connected to the bracket (324). The rotating mechanism (10) further includes a back cover (101). The back cover (101) and the main shaft (100) are stacked along the third direction (Z). The back cover (101) includes an appearance surface (E), and the third direction (Z) is perpendicular to the first direction (X) and the second direction (Y). The rotation axis of the third link (323) relative to the first link (321) is the first axis (s1), and the first axis (s1) is parallel to the first direction (X). The rotation axis of the second link (322) relative to the first link (321) is the second axis (s2). When the two rotating shaft assemblies (300) are in a flat state, the distance between the second axis (s2) and the reference plane (F) in the third direction (Z) is greater than the distance between the first axis (s1) and the reference plane (F) in the third direction (Z). The reference plane (F) is parallel to the first direction (X) and the second direction (Y), and the farthest point of the appearance surface (E) from the support plane (M) along the third direction (Z) intersects with the reference plane (F). The rotation axis of the third link (323) relative to the bracket (324) is the third axis (s3), and the third axis (s3) is parallel to the first direction (X). The rotation axis of the second link (322) relative to the bracket (324) is the fourth axis (s4). When the two rotating shaft assemblies (300) are in the unfolded state, the distance between the fourth axis (s4) and the reference plane (F) in the third direction (Z) is greater than the distance between the third axis (s3) and the reference plane (F) in the third direction (Z).

9. The rotating mechanism according to claim 8, wherein The second end (323b) of the third link is connected to the bracket (324) by a pin shaft, and the first end (323a) of the third link is rotatably connected to the first link (321) through a third arc-shaped slider (3232) and a third arc-shaped chute (3214). The first end (323a) of the third link includes a third arc-shaped slider (3232), and the first link (321) includes a third arc-shaped chute (3214); or the first end (323a) of the third link includes a third arc-shaped chute (3214), and the first link (321) includes a third arc-shaped slider (3232).

10. The rotating mechanism according to any one of claims 4-9, characterized in that, The first rotating shaft assembly (300a) further includes a fourth link (325). The first end (325a) of the fourth link is rotatably connected to the main shaft (100), and the second end (325b) of the fourth link is rotatably connected to the bracket (324). The rotation axis of the bracket (324) relative to the fourth link (325) and the rotation axis of the fourth link (325) relative to the main shaft (100) are both parallel to the first direction (X).

11. The rotating mechanism according to claim 10, characterized in that, The second end (325b) of the fourth link is connected to the bracket (324) by a pin shaft, and the first end (325a) of the fourth link is rotatably connected to the main shaft (100), including: the first end (325a) of the fourth link is rotatably connected to the main shaft (100) through a fourth arc-shaped slider (3252) and a fourth arc-shaped chute (103). The first end (325a) of the fourth link includes a fourth arc-shaped slider (3252), and the main shaft (100) further includes a fourth arc-shaped chute (103); or the first end (325a) of the fourth link includes a fourth arc-shaped chute (103), and the main shaft (100) further includes a fourth arc-shaped slider (3252).

12. The rotating mechanism according to any one of claims 1-11, characterized in that, The first rotating shaft assembly (300a) further includes a swing rod (510). The first end (510a) of the swing rod is rotatably connected to the main shaft (100), and the rotation axis of the swing rod (510) relative to the main shaft (100) is parallel to the first direction (X). The second end (510b) of the swing rod is slidably connected to the bracket (324), and the sliding direction of the swing rod (510) relative to the bracket (324) is not parallel to the extending direction of the bracket (324). When the two rotating shaft assemblies (300) rotate from the unfolded state to the folded state, the bracket (324) slides away from the main shaft (100) relative to the swing rod (510); when the two rotating shaft assemblies (300) rotate from the folded state to the unfolded state, the bracket (324) slides towards the main shaft (100) relative to the swing rod (510).

13. The rotating mechanism according to claim 12, characterized in that, The first end (510a) of the swing rod includes a slider of the swing rod (510). The second end (510b) of the swing rod is rotatably connected to the main shaft (100) through a pin shaft. The bracket (324) includes a chute of the bracket (324), and the slider of the swing rod (510) is slidably connected to the chute of the bracket (324).

14. The rotating mechanism according to any one of claims 1-13, wherein The support door panel (300) further includes a bent portion (313), and the bent portion (313) is connected between the second sub-portion (3119) and the first sub-portion (3129); When the two rotating shaft assemblies (300) are in the unfolded state, the bent portion (313) is flattened; when the two rotating shaft assemblies (300) are in the folded state, the bent portion (313) is bent, and a bending angle is formed between the first sub-portion (3129) and the second sub-portion (3119).

15. The rotating mechanism according to claim 14, wherein, The bent portion (313), the second sub-portion (3119) and the first sub-portion (3129) are of an integral structure.

16. The rotating mechanism according to claim 15, characterized in that, The bent portion (313) has a plurality of openings.

17. The rotating mechanism according to claim 15, wherein The thickness of the bent portion (313) is less than the thickness of the first sub-portion (3129), and the thickness of the bent portion (313) is less than the thickness of the second sub-portion (3119).

18. The rotating mechanism according to claim 14, characterized in that, The support door panel (300) further includes a flexible layer (314). The flexible layer (314) is connected to the same side of the second sub-portion (3119) and the first sub-portion (3129), and the flexible layer (314) located between the second sub-portion (3119) and the first sub-portion (3129) is the bent portion (313).

19. The rotating mechanism according to any one of claims 1-18, characterized in that, In the direction perpendicular to the support plane (N), the first sub-portion (3129) and the main shaft (100) at least partially overlap, and the second sub-portion (3119) and the main shaft (100) at least partially overlap.

20. A foldable electronic device, characterized in that, Comprising: A flexible screen (30), a first structural member (21), a second structural member (22), and a rotating mechanism (10) according to any one of claims 1-19; The first structural member (21) and the second structural member (22) are connected to both sides of the rotating mechanism (10). The flexible screen (30) is located on the same side of the first structural member (21) and the second structural member (22), and is connected to the first structural member (21) and the second structural member (22); When the folding electronic device is in the unfolded state, the support plane (N) of the rotating mechanism (10) is used to support the flexible screen (30); When the folding electronic device is in a folded state, a first sub-portion (3129) of the rotating mechanism (10), a second sub-portion (3119) of the rotating mechanism (10), a third sub-portion (3118) of the rotating mechanism (10), a fourth sub-portion (3128) of the rotating mechanism (10), and a main shaft (100) of the rotating mechanism (10) together enclose a screen-containing space (M), and a part of the flexible screen (30) is located within the screen-containing space (M).

21. The folding electronic device according to claim 20, wherein, At least one of the first sub-portion (3129), the second sub-portion (3119), the third sub-portion (3118), and the fourth sub-portion (3128) is connected to the flexible screen (30).

Images