Rotating shaft device and foldable electronic equipment

Abstract

The invention provides a rotating shaft device and foldable electronic equipment, and belongs to the technical field of electronics. The rotating shaft device comprises two fixing pieces, a supporting assembly and a synchronizing assembly. The synchronous assembly comprises a synchronous part and a synchronous gear; a synchronizing part is arranged between the supporting assembly and each fixing part, the first end of each synchronizing part is rotationally connected with the supporting assembly, and the second end of each synchronizing part is slidably connected with the corresponding fixing part; the first axis where the synchronous gear is located is parallel to the second axis where the first end of the synchronous piece is located, and the included angle between the plane formed by the first axis and the second axis and the first direction is larger than zero. The ultra-narrow design of the rotating shaft device can be achieved.

Description

Technical Field

[0001] This application relates to the field of electronic technologies, and particularly to a rotating shaft device and a foldable electronic device. Background Art

[0002] With the continuous development of electronic technologies, foldable electronic devices have gradually attracted wide attention and emphasis due to their advantages such as providing a larger screen space, multitasking experience, as well as better holding experience and portability.

[0003] A foldable electronic device usually connects two parts of the fuselage through a rotating shaft device, and the rotating shaft device enables the two parts of the fuselage to rotate, flip or fold at different angles and directions, so as to adapt to different usage scenarios and requirements.

[0004] However, the rotating shaft devices in related technologies generally have a relatively large width, resulting in a relatively large thickness of the whole machine in the closed state. Summary of the Invention

[0005] This application provides a rotating shaft device and a foldable electronic device, which can solve the problem that the relatively large width of the rotating shaft device leads to a relatively large thickness of the whole machine in the closed state.

[0006] The technical solutions are as follows:

[0007] On the one hand, a rotating shaft device is provided, and the rotating shaft device includes: two fixing members, a support assembly and a synchronization assembly;

[0008] The two fixing members are respectively rotatably connected to both sides of the support assembly along a first direction;

[0009] The synchronization assembly includes at least two synchronizing members and at least two synchronizing gears;

[0010] At least one of the synchronizing members is arranged between the support assembly and each of the fixing members. The first end of the synchronizing member is rotatably connected to the support assembly, and the second end of the synchronizing member is slidably connected to the fixing member;

[0011] The at least two synchronizing gears are meshed and connected between the first ends of the two synchronizing members. The first axis where the at least two synchronizing gears are located is parallel to the second axis where the first ends of the synchronizing members are located, and the plane formed by the first axis and the second axis forms an angle α with the first direction, where the angle α is greater than zero.

[0012] In some embodiments, a first sliding portion is provided at the second end of the synchronizing member, a second sliding portion is provided on the fixing member, the first sliding portion and the second sliding portion are slidably matched, and the orthographic projection of the first sliding portion and the second sliding portion along the first axis forms an angle β with the first direction, where the angle β is greater than zero.

[0013] In some embodiments, 0 < α ≤ 20°, and / or 0 < β ≤ 20°.

[0014] In some embodiments, a gear portion is provided at a first end of the synchronizing member, and the gear portion is meshed and connected with one of the at least two synchronizing gears;

[0015] The two fixing members can rotate synchronously under the action of the two synchronizing members and the at least two synchronizing gears.

[0016] In some embodiments, an included angle γ is formed between the first sliding portion and the second sliding portion.

[0017] In some embodiments, 0 < γ ≤ 2°.

[0018] In some embodiments, the rotating shaft device further includes at least two track members, and at least one of the track members is arranged between the supporting assembly and each of the fixing members;

[0019] A third end of the track member is slidably connected to the supporting assembly, a fourth end of the track member is rotatably connected to the fixing member, and the fourth end of the track member is located on a third axis.

[0020] In some embodiments, a first hinge portion is provided at the fourth end of the track member, a second hinge portion is provided on the fixing member, and the first hinge portion and the second hinge portion are rotatably connected along the third axis;

[0021] At least one first connecting portion is provided on the fixing member, and a positive projection of the second hinge portion along the thickness direction of the fixing member does not coincide with a positive projection of the at least one first connecting portion along the thickness direction of the fixing member.

[0022] In some embodiments, the fixing member includes a first side surface and a second side surface along the rotation direction;

[0023] One of the second hinge portion and the at least one first connecting portion is located on the first side surface, and the other of the second hinge portion and the at least one first connecting portion is located on the second side surface.

[0024] In some embodiments, the rotating shaft device further includes a damping assembly, and the damping assembly includes a cam member and at least one elastic member;

[0025] First cam portions are respectively provided at first ends of the two synchronizing members;

[0026] The cam member is provided with two second cam portions and a second connecting portion;

[0027] The two second cam parts are respectively located at two ends of the second connecting part along the first direction. The two second cam parts are respectively connected to the two first cam parts along the second axis. The at least one elastic member is connected to the cam member, and the at least one elastic member provides an elastic force for the cam member.

[0028] In some embodiments, the orthographic projection of the second cam part along the first direction and the orthographic projection of the second connecting part along the first direction do not coincide.

[0029] In some embodiments, at least part of the second cam part and the second connecting part are staggered along the second axis.

[0030] In some embodiments, the rotating shaft device further includes two support members;

[0031] The support members are located on the first side of the fixing member facing the accommodating screen space;

[0032] The support member is provided with a first mating part and a second mating part, and the fixing member is provided with a third mating part and a fourth mating part;

[0033] The first mating part is movably connected to the third mating part, and the second mating part is movably connected to the fourth lower pair part.

[0034] On the other hand, a foldable electronic device is provided, and the foldable electronic device includes the rotating shaft device described in this application.

[0035] The beneficial effects brought by the technical solution provided in this application at least include:

[0036] In the rotating shaft device of this application, a fixing member is arranged on each side of the support assembly. Each fixing member and the support assembly are connected by a synchronization assembly. The synchronization assembly can support the fixing member to rotate around the support assembly to realize the switching between the folded state and the unfolded state of the rotating shaft device; the first ends of the two synchronization members are rotatably connected to the support assembly, and the second ends are movably connected to the fixing member. The first ends of the two synchronization members are meshed and connected by a synchronization gear. And the plane formed by the first axis where the synchronization gear is located and the second axis where the first ends of the synchronization members are located forms an angle greater than zero with the first direction. Thus, the two second axes corresponding to the first ends of the two synchronization members can approach each other, which is beneficial to reducing the size of the rotating shaft device along the first direction, that is, the rotating shaft device can achieve an extremely narrow design. Description of the Drawings

[0037] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0038] Figure 1 is a schematic structural diagram of a rotating shaft device provided by an embodiment of the present application;

[0039] Figure 2 is a schematic diagram of the included angle α provided by an embodiment of the present application;

[0040] Figure 3 is a schematic diagram of the included angle β provided by an embodiment of the present application;

[0041] Figure 4 is a schematic structural diagram of a synchronizing member provided by an embodiment of the present application;

[0042] Figure 5 is a schematic structural diagram of a fixing member from a first perspective provided by an embodiment of the present application;

[0043] Figure 6 is a schematic diagram of the included angle γ provided by an embodiment of the present application;

[0044] Figure 7 is a connection schematic diagram of a fixing member, a track member, and a support assembly provided by an embodiment of the present application;

[0045] Figure 8 is a schematic structural diagram of a fixing member from a second perspective provided by an embodiment of the present application;

[0046] Figure 9 is a schematic structural diagram of a damping assembly provided by an embodiment of the present application;

[0047] Figure 10 is a schematic structural diagram of a cam member provided by an embodiment of the present application;

[0048] Figure 11 is a schematic structural diagram of a rotating shaft device provided by another embodiment of the present application;

[0049] Figure 12 is a matching schematic diagram of a support member and a fixing member provided by an embodiment of the present application.

[0050] The reference numerals in the drawings are respectively represented as:

[0051] 001, the first axis; 002, the second axis; 003, the third axis;

[0052] 1, the fixing member;

[0053] 101. First side; 102. Second side;

[0054] 11. Second sliding part; 12. Second hinge part; 13. Third mating part; 14. Fourth mating part; 15. First connecting part; 16. Reinforcing boss;

[0055] 2. Support assembly

[0056] 3. Synchronization assembly;

[0057] 31. Synchronizer; 3101. First end; 3102. Second end; 311. First sliding part; 312. Gear part; 313. First cam part; 32. Synchronization gear;

[0058] 4. Trajectory part; 401. Third end; 402. Fourth end; 41. First hinge part;

[0059] 5. Damping assembly;

[0060] 51. Cam part; 511. Second cam part; 512. Second connecting part; 52. Elastic part;

[0061] 6. Support part;

[0062] 61. First mating part; 62. Second mating part;

[0063] 7. Screen module. Detailed implementation mode

[0064] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0065] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the Figure 1 orientation or positional relationship shown, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0066] Unless otherwise defined, all technical terms used in the embodiments of this application have the same meaning as commonly understood by those of ordinary skill in the art.

[0067] To make the objectives, technical solutions, and advantages of this application clearer, the following will further describe the embodiments of this application in detail with reference to the accompanying drawings.

[0068] On the one hand, as shown in Figures 1 to 5 this embodiment provides a rotating shaft device, which includes: two fixing members 1, a support assembly 2, and a synchronization assembly 3; the two fixing members 1 are respectively rotatably connected to both sides of the support assembly 2 along a first direction.

[0069] The synchronization assembly 3 includes at least two synchronizing members 31 and at least two synchronizing gears 32; at least one synchronizing member 31 is arranged between the support assembly 2 and each fixing member 1. The first end 3101 of the synchronizing member 31 is rotatably connected to the support assembly 2, and the second end 3102 of the synchronizing member 31 is slidably connected to the fixing member 1; at least two synchronizing gears 32 are meshingly connected between the first ends 3101 of the two synchronizing members 31. The first axis 001 where the at least two synchronizing gears 32 are located is parallel to the second axis 002 where the first ends 3101 of the synchronizing members 31 are located, and the plane formed by the first axis 001 and the second axis 002 makes an angle α with the first direction, where the angle α is greater than zero.

[0070] In the rotating shaft device of this application, one fixing member 1 is arranged on each side of the support assembly 2, and each fixing member 1 and the support assembly 2 are connected through a synchronization assembly 3. The synchronization assembly 3 can support the fixing member 1 to rotate around the support assembly 2, realizing the switching between the folded state and the unfolded state of the rotating shaft device.

[0071] The first ends 3101 of the two synchronizing members 31 are rotatably connected to the support assembly 2, and the second ends 3102 are movably connected to the fixing member 1. The first ends 3101 of the two synchronizing members 31 are meshingly connected through a synchronizing gear 32, and the plane formed by the first axis 001 where the synchronizing gear 32 is located and the second axis 002 where the first ends 3101 are located makes an angle greater than zero with the first direction. Thus, the two second axes 002 corresponding to the first ends 3101 of the two synchronizing members 31 can approach each other, which is beneficial to reducing the size of the rotating shaft device along the first direction, that is, the rotating shaft device can achieve an extremely narrow design.

[0072] In the traditional solution, the plane formed by the first axis 001 and the second axis 002 is usually parallel to the first direction. In this case, limited by objective conditions such as processing technology and assembly technology, and at the same time, it is necessary to ensure the synchronization effect of the synchronous gear 32, the radius of the synchronous gear 32 cannot be reduced, and the distance between the two second axes 002 cannot be reduced, resulting in a larger size of the rotating shaft device in the first direction, that is, the width of the rotating shaft device is larger. The width of the rotating shaft device directly determines the thickness of the foldable electronic device in the folded state, so the thickness of the electronic device in the folded state is larger in the traditional solution.

[0073] Refer to Figure 1 、 2 Taking the rotating shaft device shown as an example, through the above arrangement of this embodiment, the projected distance C in the horizontal plane between the first axis 001 where the left synchronous gear 32 is located and the second axis 002 where the first end 3101 of the left synchronizer 31 is located is equal to the spatial distance (i.e., the vertical distance) F×cosα between the first axis 001 and the second axis 002. Based on trigonometric functions, it can be deduced that the distance C is less than the spatial distance F. Therefore, in this embodiment, without changing the synchronous size and the size of the synchronizer 31, the horizontal distance between the synchronous gear 32 and the synchronizer 31 in the first direction can be effectively reduced, that is, the horizontal size of the rotating shaft device in the first direction can be reduced. This horizontal size is the width of the rotating shaft device, that is, this embodiment can effectively reduce the thickness of the foldable electronic device in the folded state.

[0074] Combined with Figure 1 、 Figures 3 to 5 As shown, in some embodiments, the second end 3102 of the synchronizer 31 is provided with a first sliding portion 311, and the fixing member 1 is provided with a second sliding portion 11. The first sliding portion 311 and the second sliding portion 11 are in sliding fit. The orthographic projection of the first sliding portion 311 and the second sliding portion 11 along the first axis 001 and the first direction form an angle β, where the angle β is greater than zero.

[0075] The second ends 3102 of the two synchronizers 31 are in sliding fit with the second sliding portion 11 on the fixing member 1 through the first sliding portion 311 thereon. The first sliding portion 311, the second sliding portion 11 and the first direction form an angle greater than zero. Therefore, without changing the sliding fit space between the two synchronizers 31 and the fixing member 1, a narrowing design can be carried out on the fixing member 1, which is also beneficial to reducing the size of the rotating shaft device in the first direction and realizing an extremely narrow design of the rotating shaft device.

[0076] Based on the above analysis, by arranging the first sliding part 311 and the second sliding part 11 at an angle β greater than zero with respect to the first direction, it is possible to effectively reduce the horizontal dimension of the first sliding part 311 and the second sliding part 11 in the first direction without changing the mating dimensions of the first sliding part 311 and the second sliding part 11, and reduce the horizontal dimension of the rotating shaft device in the first direction, thereby achieving an extremely narrow design of the rotating shaft device.

[0077] In some possible implementation manners, the rotating shaft device includes an unfolded state (refer to Figure 3 shown) and a folded state (refer to Figure 6 shown), and the rotating shaft device can be switched between the unfolded state and the folded state.

[0078] Combined with Figure 2 shown, in some embodiments, where 0 < α ≤ 20°. When the value of the angle α satisfies the above value range, the rotating shaft device can achieve an extremely narrow design and does not affect the switching between the unfolded state and the folded state of the rotating shaft device.

[0079] Exemplarily, the value of the angle α, for example, is 1°, 2°, 3°, 4°, 5°, 6°, 7°, 8°, 9°, 10°, 11°, 12°, 13°, 14°, 15°, 16°, 17°, 18°, 19°, 20°, etc. Optionally, the value of the angle α is 10°.

[0080] Combined with Figure 3 shown, in some embodiments, where 0 < β ≤ 20°. When the value of the angle β satisfies the above value range, the rotating shaft device can achieve an extremely narrow design and does not affect the switching between the unfolded state and the folded state of the rotating shaft device.

[0081] Exemplarily, the value of the angle β, for example, is 1°, 2°, 3°, 4°, 5°, 6°, 7°, 8°, 9°, 10°, 11°, 12°, 13°, 14°, 15°, 16°, 17°, 18°, 19°, 20°, etc. Optionally, the value of the angle β is 10°.

[0082] Combined with Figure 1 and Figure 4 shown, in some embodiments, the first end 3101 of the synchronizing member 31 is provided with a gear portion 312, and the gear portion 312 is meshed and connected with one of at least two synchronizing gears 32; the two fixing members 1 can rotate synchronously under the action of the two synchronizing members 31 and at least two synchronizing gears 32.

[0083] The first ends 3101 of the two synchronizing members 31 of this embodiment are respectively engaged with the synchronizing gear 32 through the gear portions 312 thereon. Under the action of the synchronizing gear 32, the two synchronizing members 31 can rotate synchronously around the first ends 3101 respectively, and then drive the two fixing members 1 to rotate synchronously around the support assembly 2, realizing the synchronous deployment and synchronous folding of the rotating shaft device.

[0084] Combined with Figure 6 As shown, in some embodiments, an included angle γ is formed between the first sliding portion 311 and the second sliding portion 11. Thus, in this embodiment, the first sliding portion 311 and the second sliding portion 11 adopt a non-parallel design, so that the first sliding portion 311 and the second sliding portion 11 do not completely fit. In particular, there are cross gaps at the ends of the first sliding portion 311 and the second sliding portion 11. Such a design is beneficial to buffering and energy absorption during the dropping process of the rotating shaft device in the folded state. At the same time, due to the non-parallel design, the original parallel gap between the first sliding portion 311 and the second sliding portion 11 is eliminated, and the first sliding portion 311 and the second sliding portion 11 are always in a state of inclined abutment, which is beneficial to improving the left-right synchronism of the rotating shaft device.

[0085] In some possible implementation manners, 0 < γ ≤ 2°. Exemplarily, the value of the included angle γ, for example, is 0.1°, 0.2°, 0.3°, 0.4°, 0.5°, 0.6°, 0.7°, 0.8°, 0.9°, 1.0°, 1.1°, 1.2°, 1.3°, 1.4°, 1.5°, 1.6°, 1.7°, 1.8°, 1.9°, 2.0°, etc. Optionally, the value of the included angle γ is 1.5°.

[0086] In some possible implementation manners, referring to Figure 4 and Figure 5 As shown, one of the first sliding portion 311 and the second sliding portion 11 is a chute structure, and the other is a slider structure. Exemplarily, the first sliding portion 311 is a slider structure, and the first sliding portion 311 protrudes and is arranged on both sides of the second end 3102 of the synchronizing member 31; the second sliding portion 11 is a chute structure, and the chute structure is opened on the fixing member 1 and obliquely penetrates through the upper and lower surfaces of the fixing member 1.

[0087] Combined with Figure 1 、 Figure 5 and Figure 7 As shown, in some embodiments, the rotating shaft device further includes two track members 4, and one track member 4 is arranged between the support assembly 2 and each fixing member 1.

[0088] The third end 401 of the track member 4 is slidably connected to the support assembly 2, the fourth end 402 of the track member 4 is rotatably connected to the fixing member 1, and the fourth end 402 of the track member 4 is located on the third axis 003.

[0089] With the above arrangement, under the guiding action of the track member 4, the fixing member 1 can rotate around the support assembly 2 to realize the switching between the folded state and the unfolded state of the rotating shaft device.

[0090] In addition, it should be noted that the third end 401 and the fourth end 402 of the track member 4 are only for distinguishing from the first end 3101 and the second end 3102 of the synchronizing member 31, and do not mean that the track member 4 has four ends. Exemplarily, the track member 4 has two ends, namely the third end 401 and the fourth end 402.

[0091] Combined with Figure 5 、 Figure 7 and Figure 8 As shown in, in some embodiments, a first hinge portion 41 is provided at the fourth end 402 of the track member 4, and a second hinge portion 12 is provided on the fixing member 1. The first hinge portion 41 and the second hinge portion 12 are rotatably connected along the third axis 003. At least one first connecting portion 15 is provided on the fixing member 1, and at least one first connecting portion 15 is used to connect the folded body of the electronic device. The orthographic projection of the second hinge portion 12 along the thickness direction of the fixing member 1 does not coincide with the orthographic projection of at least one first connecting portion 15 along the thickness direction of the fixing member 1.

[0092] In the rotating shaft device of this embodiment, through the rotational connection between the first hinge portion 41 and the second hinge portion 12, the fourth end 402 of the track member 4 is rotatably connected to the fixing member 1, and the fixing member 1 can rotate around the support assembly 2.

[0093] The fixing member 1 can use at least one first connecting portion 15 thereon to connect the folded body of the electronic device, so as to drive the folded body to fold and unfold. Exemplarily, the structure of the first connecting portion 15 includes but is not limited to a hole-shaped structure, a groove-shaped structure, a boss-shaped structure, a column-shaped structure, etc.

[0094] In addition, as the connection structure between the folded body and the rotating shaft device, the fixing member 1 needs to meet strict strength requirements, and the structural strength of the first connecting portion 15 is particularly important. Therefore, the fixing member 1 where the first connecting portion 15 is located usually needs to be strengthened. Exemplarily, referring to Figure 5 、 8 As shown in, when the first connecting portion 15 is a hole-shaped structure, in order to increase the structural strength of the first connecting portion 15, a reinforcing boss 16 is provided on the fixing member 1 around the first connecting portion 15. When the reinforcing boss 16 exists, it will cause the thickness of the fixing member 1 (refer to Figure 8Increases in the direction indicated by the dashed line in the figure. At this time, if the orthographic projection of the second hinge portion 12 and the first connection portion 15 along the thickness direction of the fixing member 1 overlaps, the thickness of this part of the fixing member 1 is equal to the sum of the thickness of the reinforcing boss 16, the thickness of the fixing member 1, and the height of the second hinge portion 12. This will cause an increase in the dimension of the fixing member 1 along the thickness direction, and an increase in the dimension of the fixing member 1 along the thickness direction will cause an increase in the dimension of the rotating shaft device along the first direction in the folded state, resulting in an increase in the thickness of the foldable electronic device in the folded state. Therefore, in this embodiment, the orthographic projection of the second hinge portion 12 along the thickness direction of the fixing member 1 does not overlap with the orthographic projection of at least one first connection portion 15 along the thickness direction of the fixing member 1.

[0095] Combined with Figure 5 and Figure 8 As shown, in some embodiments, the fixing member 1 includes a first side surface 101 and a second side surface 102 arranged along the rotation direction. Among them, when the rotating shaft device is in an inner folding scenario, the first side surface 101 can also be described as the side surface of the fixing member 1 facing the screen-containing space, and the second side surface 102 can also be described as the side surface of the fixing member 1 facing away from the screen-containing space.

[0096] One of the second hinge portion 12 and at least one first connection portion 15 is located on the first side surface 101, and the other of the second hinge portion 12 and at least one first connection portion 15 is located on the second side surface 102.

[0097] By arranging the second hinge portion 12 and the first connection portion 15 on the first side surface 101 or the second side surface 102 of the fixing member 1 respectively, the space of the first side surface 101 and the second side surface 102 of the fixing member 1 is fully utilized, which is beneficial to reducing the design difficulty of the second hinge portion 12 and the first connection portion 15, beneficial to reducing the volume of the second hinge portion 12 and the first connection portion 15, and avoiding interference problems that may occur when the second hinge portion 12 and the first connection portion 15 are arranged on the same side surface at the same time.

[0098] Exemplarily, referring to Figure 8 As shown, the second hinge portion 12 is located on the first side surface 101, and the first connection portion 15 is located on the second side surface 102.

[0099] Combined with Figure 4 , Figure 9 and Figure 10As shown, in some embodiments, the rotating shaft device further includes a damping assembly 5, and the damping assembly 5 includes a cam member 51 and at least one elastic member 52; first cam portions 313 are respectively provided at the first ends 3101 of the two synchronizing members 31; the cam member 51 is provided with two second cam portions 511 and a second connecting portion 512; the two second cam portions 511 are respectively located at both ends of the second connecting portion 512 along the first direction, the two second cam portions 511 are respectively connected to the two first cam portions 313 along the second axis 002, and at least one elastic member 52 is connected to the cam member 51, and at least one elastic member 52 provides an elastic force for the cam member 51.

[0100] Through the above arrangement, when the fixing member 1 in the rotating shaft device drives the synchronizing member 31 to rotate around the supporting assembly 2, the damping assembly 5 can be used to provide a damping force, which can achieve damping feedback on the one hand and enable the rotating shaft device to hover at any angle on the other hand.

[0101] Combined with Figure 10 As shown, in some embodiments, the orthographic projection of the second cam portion 511 along the first direction and the orthographic projection of the second connecting portion 512 along the first direction do not coincide. Through the above arrangement, the two second cam portions 511 of the cam member 51 and the second connecting portion 512 can be arranged in a staggered manner, so that the two second cam portions 511 are arranged with an offset in the middle of the cam member 51 on the premise of not affecting the connection and limiting functions of the second connecting portion 512, which is beneficial to reducing the size of the cam member 51 along the first direction and adapting to the extremely narrow design of the rotating shaft device in this embodiment.

[0102] Combined with Figure 10 As shown, in some embodiments, at least part of the second cam portion 511 and the second connecting portion 512 are staggered along the second axis 002. Thus, the two second cam portions 511 can be arranged with an offset towards the middle of the cam member 51, which is beneficial to reducing the size of the cam member 51 along the first direction and adapting to the extremely narrow design of the rotating shaft device in this embodiment.

[0103] Combined with Figure 10 and Figure 11 As shown, in some embodiments, the rotating shaft device further includes two supporting members 6; the supporting members 6 are located on the first side surface 101 of the fixing member 1 facing the screen accommodating space; the supporting members 6 are provided with a first mating portion 61 and a second mating portion 62, and the fixing member 1 is provided with a third mating portion 13 and a fourth mating portion 14; the first mating portion 61 is movably connected to the third mating portion 13, and the second mating portion 62 is movably connected to the fourth lower pair portion.

[0104] Through the above arrangement, the rotating shaft device can use the two supporting members 6 to perform floating support on the screen module 7, improving the support effect of the screen module 7.

[0105] Exemplarily, the first mating portion 61 is an arc-shaped chute, and the third mating portion 13 is an arc-shaped slide rail; alternatively, the second mating portion 62 is an arc-shaped chute, and the fourth mating portion 14 is an arc-shaped slide rail. Thereby, the support member 6 can adapt to the rotation position of the rotation shaft device, providing a more optimized floating support for the screen module 7.

[0106] On the other hand, this embodiment provides a foldable electronic device, and the foldable electronic device includes the rotation shaft device of the present application. The electronic device of this embodiment adopts the rotation shaft device of the present disclosure and has all the technical effects of the present disclosure.

[0107] The electronic device of this embodiment, such as: a smart phone, a tablet computer, an MP3 player (Moving Picture Experts Group Audio Layer III), an MP4 (Moving Picture Experts Group Audio Layer IV) player, a notebook computer, or a desktop computer, etc.

[0108] In some possible implementation manners, referring to Figure 10 as shown, the electronic device further includes a screen module 7; the screen module 7 at least covers the support assembly 2 and the two support members 6.

[0109] Alternatively, when the rotation shaft device is in the closed state, the display surface of the screen module 7 faces the inside of the electronic device, that is, the electronic device is an inward-foldable electronic device.

[0110] The electronic device of this embodiment uses the rotation shaft device to realize the rotational movement and horizontal movement of the two device bodies, with stable structure and good synchronism, and can realize the unfolding and folding of the screen module 7.

[0111] In some possible implementation manners, the screen module 7 includes a flexible display panel, and the flexible display panel is an organic light-emitting diode display screen (Organic Light-Emitting Diode, OLED).

[0112] Exemplarily, the flexible display panel includes a substrate, an organic light-emitting diode (OLED) layer, and a thin film encapsulation (TFE) layer that are sequentially stacked.

[0113] Exemplarily, the flexible display panel includes a substrate, a thin film transistor (TFT) layer, an organic light-emitting diode (OLED) layer, a thin film encapsulation (TFE) layer, a touch layer, and a polarizer, which are sequentially stacked.

[0114] It should be noted that the layer structure of the flexible display panel is not limited to the two structural forms listed above. Other layer structural forms can also be adopted when meeting the requirements of foldable display.

[0115] In some possible implementation manners, the electronic device may include components such as a radio frequency (RF) circuit, a memory including one or more computer-readable storage media, an input unit, a display unit, a sensor, an audio circuit, a Wi-Fi module, a processor including one or more processing cores, and a power supply.

[0116] It should be pointed out that in this article, "a plurality of" and "at least one" refer to one or more, and "multiple" and "at least two" refer to two or more. "And / or" describes the association relationship of associated objects and indicates that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0117] In the description of the present disclosure, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific situations.

[0118] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the present disclosure, "multiple" means two or more unless otherwise clearly and specifically defined.

[0119] In this disclosure, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0120] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present disclosure.

[0121] The above are only examples of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the principles of the present disclosure shall be included within the protection scope of the present disclosure.

Claims

1. A rotating shaft device, characterized in that, The rotating shaft device includes: two fixing members (1), a support assembly (2), and a synchronization assembly (3); The two fixing members (1) are respectively rotatably connected to both sides of the support assembly (2) along a first direction; The synchronization assembly (3) includes at least two synchronizing members (31) and at least two synchronizing gears (32); At least one of the synchronizing members (31) is arranged between the support assembly (2) and each of the fixing members (1). The first end (3101) of the synchronizing member (31) is rotatably connected to the support assembly (2), and the second end (3102) of the synchronizing member (31) is slidably connected to the fixing member (1); The at least two synchronizing gears (32) are meshed and connected between the first ends (3101) of the two synchronizing members (31). The first axis (001) where the at least two synchronizing gears (32) are located is parallel to the second axis (002) where the first ends (3101) of the synchronizing members (31) are located, and the plane formed by the first axis (001) and the second axis (002) forms an angle α with the first direction, where the angle α is greater than zero.

2. The rotating shaft device according to claim 1, characterized in that, The second end (3102) of the synchronizing member (31) is provided with a first sliding portion (311), and the fixing member (1) is provided with a second sliding portion (11). The first sliding portion (311) and the second sliding portion (11) are slidably matched. The orthographic projection of the first sliding portion (311) and the second sliding portion (11) along the first axis (001) forms an angle β with the first direction, where the angle β is greater than zero.

3. The rotating shaft device according to claim 1, characterized in that, Wherein, 0 < α ≤ 20°, and / or, 0 < β ≤ 20°.

4. The rotating shaft device according to any one of claims 1 to 3, characterized in that, The first end (3101) of the synchronizing member (31) is provided with a gear portion (312), and the gear portion (312) is meshed and connected with one of the at least two synchronizing gears (32); The two fixing members (1) can rotate synchronously under the action of the two synchronizing members (31) and the at least two synchronizing gears (32).

5. The rotating shaft device according to claim 2, characterized in that, An angle γ is formed between the first sliding portion (311) and the second sliding portion (11).

6. The rotating shaft device according to claim 5, characterized in that, 0 < γ ≤ 2°.

7. The rotating shaft device according to any one of claims 1 to 6, characterized in that, The rotating shaft device further includes at least two track members (4), and at least one of the track members (4) is arranged between the support assembly (2) and each of the fixing members (1); The third end (401) of the track member (4) is slidably connected to the support assembly (2), the fourth end (402) of the track member (4) is rotatably connected to the fixing member (1), and the fourth end (402) of the track member (4) is located on a third axis (003).

8. The rotating shaft device according to claim 7, characterized in that, The fourth end (402) of the track member (4) is provided with a first hinge portion (41), and the fixing member (1) is provided with a second hinge portion (12). The first hinge portion (41) and the second hinge portion (12) are rotatably connected along the third axis (003); The fixing member (1) is provided with at least one first connecting portion (15), and the orthographic projection of the second hinged portion (12) in the thickness direction of the fixing member (1) does not coincide with the orthographic projection of the at least one first connecting portion (15) in the thickness direction of the fixing member (1).

9. The rotating shaft device according to claim 8, characterized in that, The fixing member (1) includes a first side surface (101) and a second side surface (102) arranged along the rotation direction; One of the second hinged portion (12) and the at least one first connecting portion (15) is located on the first side surface (101), and the other of the second hinged portion (12) and the at least one first connecting portion (15) is located on the second side surface (102).

10. The rotating shaft device according to any one of claims 1 to 9, characterized in that, The rotating shaft device further includes a damping assembly (5), and the damping assembly (5) includes a cam member (51) and at least one elastic member (52); First cam portions (313) are respectively provided at the first ends (3101) of the two synchronizing members (31); The cam member (51) is provided with two second cam portions (511) and a second connecting portion (512); The two second cam portions (511) are respectively located at both ends of the second connecting portion (512) along the first direction. The two second cam portions (511) are respectively connected to the two first cam portions (313) along the second axis (002). The at least one elastic member (52) is connected to the cam member (51), and the at least one elastic member (52) provides an elastic force for the cam member (51).

11. The rotating shaft device according to claim 10, characterized in that, The orthographic projection of the second cam portion (511) along the first direction and the orthographic projection of the second connecting portion (512) along the first direction are at least partially non - coincident.

12. The rotating shaft device according to claim 11, characterized in that, At least a part of the second cam portion (511) and the second connecting portion (512) are staggered along the second axis (002).

13. The rotating shaft device according to any one of claims 1 to 12, characterized in that, The rotating shaft device further includes at least two supporting members (6); The supporting members (6) are located on the first side surface (101) of the fixing member (1) facing the screen module (7); The supporting members (6) are provided with a first matching portion (61) and a second matching portion (62), and the fixing member (1) is provided with a third matching portion (13) and a fourth matching portion (14); The first matching portion (61) is movably connected to the third matching portion (13), and the second matching portion (62) is movably connected to the fourth matching portion (14).

14. A foldable electronic device, characterized in that, The foldable electronic device includes the rotating shaft device according to any one of claims 1 to 13.

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