Rotating shaft mechanism and foldable electronic equipment

Abstract

The invention discloses a rotating shaft mechanism and foldable electronic equipment, relates to the technical field of electronic products, and can prevent a folding screen from being extruded. The rotating shaft mechanism comprises a fixed seat, a first movable plate and a second movable plate, the first movable plate and the second movable plate are arranged in the first direction, the first movable plate and the second movable plate are rotatably connected to the fixed seat, and the first movable plate comprises a first supporting face, a first end and a second end, the second movable plate comprises a second supporting face, a third end and a fourth end, the rotating shaft mechanism has an unfolded state and a folded state, in the unfolded state, the first supporting face and the second supporting face both face away from the fixing base, and in the process that the rotating shaft mechanism is switched from the unfolded state to the folded state, the first end can rotate in the direction close to the fixing base relative to the second end. The third end can rotate in the direction close to the fixing base relative to the fourth end, so that an avoiding space is formed between the first supporting face and the second supporting face.

Description

Technical Field

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

[0002] With the development of terminal technologies, the display screen sizes of electronic devices such as mobile phones are getting larger and larger. To solve the problems of large size and inconvenient portability of traditional flat electronic devices, foldable electronic devices have emerged as the times require. A foldable electronic device includes a folding screen and a housing assembly for supporting the folding screen. The housing assembly generally includes a first housing, a second housing, and a rotating shaft mechanism. The first housing and the second housing are rotatably connected through the rotating shaft mechanism to realize the unfolding or folding of the folding screen.

[0003] However, during the folding process or when the foldable electronic device drops, the folding screen is easily damaged by being squeezed by the rotating shaft mechanism. Summary of the Invention

[0004] The embodiments of the present application provide a rotating shaft mechanism and a foldable electronic device, which can effectively prevent the folding screen from being squeezed during the folding process of the foldable electronic device or when it drops.

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

[0006] In a first aspect, the present application provides a rotating shaft mechanism, which includes: a fixed seat, a first movable plate and a second movable plate arranged in a first direction. The first movable plate and the second movable plate are both rotatably connected to the fixed seat. The first movable plate includes a first supporting surface and opposite first and second ends; the second movable plate includes a second supporting surface and opposite third and fourth ends; in the first direction, the first end is always located between the second end and the second movable plate; the third end is always located between the fourth end and the first movable plate; the rotating shaft mechanism has an unfolded state and a folded state. In the unfolded state, both the first supporting surface and the second supporting surface face away from the fixed seat. During the process of the rotating shaft mechanism switching from the unfolded state to the folded state, the first end can rotate relative to the second end towards the direction close to the fixed seat, and the third end can rotate relative to the fourth end towards the direction close to the fixed seat to form an avoidance space between the first supporting surface and the second supporting surface.

[0007] In the rotating shaft mechanism of the present application, the first movable plate and the second movable plate avoid the folding screen by rotating relative to the fixed seat. On the one hand, when the foldable electronic device is folded or dropped, it can provide an avoidance or buffer space for the folding screen, avoiding the rotating shaft mechanism from squeezing the folding screen, thus improving the reliability of the folding screen. On the other hand, it can reduce the movement space reserved for the first movable plate and the second movable plate in the rotating shaft mechanism, avoiding the occupation of the design space of structures such as the damping component in the rotating shaft mechanism, which is beneficial to improving the damping feel and hovering function of the rotating shaft mechanism and the foldable electronic device, and is also beneficial to reducing the thickness of the rotating shaft mechanism, realizing the lightweight design of the foldable electronic device.

[0008] In addition, for the rotating shaft mechanism in this embodiment, there is no need to provide grooves for avoiding the folding screen on the first movable plate and the second movable plate, which is beneficial to realizing the effective support of the first movable plate and the second movable plate for the folding screen in the unfolded state, beneficial to improving the flatness of the folding screen in the unfolded state, and further beneficial to reducing the creases of the folding screen and optimizing the screen light and shadow.

[0009] In a possible implementation manner of the first aspect, when the rotating shaft mechanism is in the folded state, the angle between the first support surface and the second support surface is greater than or equal to 140 degrees and less than or equal to 170 degrees. In this way, while providing sufficient avoidance space, it can reduce the movement space reserved for the first movable plate and the second movable plate in the rotating shaft mechanism, which is beneficial to optimizing the layout and performance of the rotating shaft mechanism, and is also beneficial to reducing the thickness of the rotating shaft mechanism, realizing the lightweight design of the foldable electronic device.

[0010] In a possible implementation manner of the first aspect, the fixed seat is provided with a first hinge portion, and the first movable plate is provided with a second hinge portion. One of the first hinge portion and the second hinge portion includes a first circular arc groove, and the other is a first circular arc rib. The first circular arc rib is slidably matched with the first circular arc groove, so that the first movable plate can rotate relative to the fixed seat around the first axis.

[0011] In this way, the rotational connection between the first movable plate and the fixed seat can be conveniently realized, and the first axis is a virtual axis, which is beneficial to reducing the rotational radius of the first movable plate relative to the fixed seat and the arc length corresponding to the rotational path of the first movable plate relative to the fixed seat. Therefore, it is beneficial to reduce the movement space reserved for the rotation of the first movable plate in the rotating shaft mechanism, beneficial to realizing the lightweight design of the rotating shaft mechanism and the foldable electronic device, and can optimize the layout of the rotating shaft mechanism and improve the overall performance of the rotating shaft mechanism.

[0012] In a possible implementation of the first aspect, the first movable plate includes a first bottom surface facing away from the first support surface, and the second hinge portion is provided on the first bottom surface; the second hinge portion includes a first arc-shaped groove, and the first arc-shaped groove is an arc-shaped groove arched in a direction away from the first bottom surface; or the second hinge portion is a first arc-shaped rib, and the first arc-shaped rib is an arc-shaped rib arched in a direction away from the first bottom surface.

[0013] In this way, during the process of the rotation shaft mechanism switching from the unfolded state to the folded state, not only can the first end of the first movable plate rotate relative to the second end in a direction approaching the fixed seat, but the first movable plate as a whole can also move in a direction away from the second movable plate, which can avoid interference between the first movable plate and the second movable plate during the rotation process, and is beneficial to reducing or eliminating the distance between the end surface of the first end of the first movable plate and the end surface of the second end of the second movable plate when the rotation shaft mechanism is in the folded state, thereby improving the support performance of the first movable plate and the second movable plate.

[0014] In a possible implementation of the first aspect, the rotation shaft mechanism further includes a first rotating member, and the first rotating member can rotate relative to the fixed seat between the unfolded position and the folded position, so that the rotation shaft mechanism can rotate between the unfolded state and the folded state. The first rotating member can be a first main swing arm or a first auxiliary swing arm.

[0015] In a possible implementation of the first aspect, the first rotating member includes a first slider, a first sliding groove is defined between the first movable plate and the fixed seat, the first sliding groove is arc-shaped, and the first slider is slidably engaged with the first sliding groove, so that the first rotating member can rotate relative to the fixed seat around a second axis, wherein the second axis is collinear with the first axis of the rotation of the first movable plate relative to the fixed seat. In this way, the overlapping amount of the first rotating member and the first sliding groove in the folded position can be increased, thereby avoiding the first rotating member slipping out of the first sliding groove and improving the connection reliability between the first rotating member and the first sliding groove.

[0016] In a possible implementation of the first aspect, a third hinge portion is provided on the fixed seat, and a fourth hinge portion is provided on the second movable plate. One of the third hinge portion and the fourth hinge portion includes a second arc-shaped groove, and the other of the third hinge portion and the fourth hinge portion is a second arc-shaped rib. The second arc-shaped rib is slidably and rotationally engaged with the second arc-shaped groove, so that the second movable plate can rotate relative to the fixed seat around the second axis.

[0017] In this way, during the process of the rotation shaft mechanism switching from the unfolded state to the folded state, not only can the third end of the second movable plate rotate relative to the fourth end towards the direction close to the fixed seat, but the second movable plate as a whole can also move away from the first movable plate, which can avoid interference between the second movable plate and the first movable plate during the rotation process, and is beneficial to reducing or eliminating the distance between the end face of the first end of the first movable plate and the end face of the second end of the second movable plate when the rotation shaft mechanism is in the folded state, thereby improving the support performance of the first movable plate and the second movable plate.

[0018] In a possible implementation manner of the first aspect, the first rotating member is rotatably connected to the fixed seat by means of a first rotating shaft. Provide another connection method between the first rotating member and the fixed seat.

[0019] In a possible implementation manner of the first aspect, the first rotating member includes a first stop surface, and the first movable plate includes a second stop surface. When the first rotating member is in the unfolded position, the first stop surface abuts against the second stop surface to limit the rotation of the first movable plate relative to the fixed seat. In this way, when the rotation shaft mechanism is in the unfolded state, the first movable plate can be limited by the first rotating member, and the position stability of the first movable plate when the rotation shaft mechanism is in the folded state can be improved.

[0020] In a possible implementation manner of the first aspect, the second rotating member includes a third stop surface, and the second movable plate includes a fourth stop surface. When the second main swing arm is in the unfolded position, the third stop surface abuts and cooperates with the fourth stop surface to limit the rotation of the first movable plate relative to the fixed seat. In this way, when the rotation shaft mechanism is in the unfolded state, the second movable plate can be limited by the second rotating member, and the position stability of the second movable plate when the rotation shaft mechanism is in the folded state can be improved.

[0021] In a possible implementation manner of the first aspect, during the process of the first rotating member rotating from the folded position to the unfolded position, the first stop surface can cooperate with the second stop surface to push the first movable plate, so that the first end of the first movable plate rotates relative to the second end towards the direction away from the fixed seat. In this way, the linkage between the first rotating member and the first movable plate can be realized, so that the first movable plate can rotate from the avoidance position to the support position under the push of the first rotating member to ensure the effective support of the first movable plate for the folded screen in the unfolded state.

[0022] In a possible implementation manner of the first aspect, during the process of the first rotating member rotating from the unfolded position to the folded position, the first stop surface is disengaged from the second stop surface; the rotation shaft mechanism further includes a shaft seat and a force applying member, the shaft seat includes a fixed seat and a shaft cover, and the fixed seat is fixedly connected to the shaft cover; the force applying member is used to apply a force to the first movable plate when the first stop surface is disengaged from the second stop surface, so that the first end of the first movable plate rotates relative to the second end towards the direction close to the fixed seat.

[0023] In this way, during the process of the rotating shaft mechanism switching from the unfolded state to the folded state, a force can be applied to the first movable plate through the force applying member, driving the first movable plate to rotate relative to the fixed seat, so that when the rotating shaft mechanism switches to the folded state, an avoidance space can be formed between the first movable plate and the second movable plate, avoiding the rotating shaft mechanism from squeezing the folding screen, with a simple structure and ingenious design.

[0024] In a possible implementation manner of the first aspect, the force applying member includes a first force applying member, the first force applying member is an elastic member, the first force applying member is connected between the shaft seat and the first movable plate. During the process of the first rotating member rotating from the folded position to the unfolded position, the first force applying member undergoes elastic deformation under the push of the first movable plate and accumulates elastic restoring force; during the process of the first rotating member rotating from the unfolded position to the folded position, the first movable plate rotates relative to the fixed seat under the action of the elastic restoring force. A specific implementation manner of the first force applying member is provided.

[0025] In a possible implementation manner of the first aspect, the force applying member includes a first force applying member and a second force applying member, and the first force applying member and the second force applying member are an integral structural member. In this way, the first movable plate and the second movable plate can share a force applying member. Thus, during the process of the rotating shaft mechanism switching from the unfolded state to the folded state, a force can be applied to the first movable plate and the second movable plate through the force applying member, driving the first movable plate to rotate relative to the fixed seat and driving the second movable plate to rotate relative to the fixed seat 2312, which can improve the force uniformity of the first movable plate and the second movable plate and can realize the synchronous reverse rotation of the first movable plate and the second movable plate.

[0026] In a possible implementation manner of the first aspect, the force applying member includes a first magnet and a second magnet. The first magnet is arranged on the first movable plate, and the second magnet is arranged on the shaft seat or the second movable plate; when the rotating shaft mechanism is in the unfolded state, the second magnet is arranged opposite to the first magnet, and the magnetic pole of the end of the second magnet close to the first magnet is the same as the magnetic pole of the end of the first magnet close to the second magnet. In this way, the first movable plate can be driven to rotate relative to the fixed seat through the magnetic repulsion force between the first magnet and the second magnet, with a simple structure and ingenious design. Moreover, compared with the elastic member, the service life of the magnet is longer, which is beneficial to extending the service life of the rotating shaft mechanism and the foldable electronic device.

[0027] In a possible implementation of the first aspect, the force - applying member includes a second magnet and a third magnet. The second magnet is disposed on the shaft base, and the third magnet is disposed on the second movable plate. When the rotating shaft mechanism is in the unfolded state, the third magnet is disposed opposite to the second magnet, and the magnetic pole of the end of the third magnet close to the second magnet is the same as the magnetic pole of the end of the second magnet close to the third magnet. In this way, the second movable plate can be driven to rotate relative to the fixed seat by the magnetic repulsion force between the second magnet and the third magnet, with a simple structure and ingenious design.

[0028] In a possible implementation of the first aspect, the rotating shaft mechanism includes: a shaft base, which includes a fixed seat and a shaft cover, and the fixed seat is fixedly connected to the shaft cover; a first convex block is provided on the first movable plate. When the rotating shaft mechanism is in the folded state, the first convex block abuts against the inner wall surface of the shaft cover. In this way, the rotation angle of the first movable plate relative to the fixed seat when the rotating shaft mechanism switches from the unfolded state to the folded state can be limited, with a simple structure and easy to implement.

[0029] In a possible implementation of the first aspect, when the rotating shaft mechanism is in the unfolded state, the first support surface and the second support surface are coplanar. In this way, the supporting effect of the first movable plate and the second movable plate on the folding screen in the unfolded state can be improved.

[0030] In a possible implementation of the first aspect, it includes a first rotating door panel and a second rotating door panel. The first rotating door panel and the second rotating door panel are respectively disposed on opposite sides of the fixed seat and can both rotate relative to the fixed seat between the unfolded position and the folded position; the first rotating door panel has a first bearing surface, and the second rotating door panel has a second bearing surface. When the rotating shaft mechanism is in the unfolded state, the first bearing surface, the first support surface, the second support surface, and the second bearing surface are coplanar. In this way, when the folding screen is in the unfolded state, the flatness of the third display part can be ensured.

[0031] In a possible implementation of the first aspect, when the rotating shaft mechanism is in the unfolded state, the end surface of the first end faces the second movable plate, the end surface of the third end faces the first movable plate, and the end surface of the third end is in contact with the end surface of the first end. In this way, when the rotating shaft mechanism is in the unfolded state, there is no gap between the end surface of the first end and the end surface of the third end, which can effectively improve the supporting performance of the first movable plate and the second movable plate, is beneficial to reducing the crease of the folding screen, and optimizing the screen light and shadow.

[0032] In a second aspect, the present application provides a foldable electronic device, including a housing assembly and a folding screen. The housing assembly includes a first housing, a second housing, and a rotating shaft mechanism. The rotating shaft mechanism is connected between the first housing and the second housing, and the rotating shaft mechanism is the foldable electronic device in any of the above - mentioned technical solutions; the folding screen is supported by the housing assembly.

[0033] In a possible implementation of the second aspect, the third display part includes a first transition section, a second transition section, and a bending section. The first transition section is connected between the bending section and the first display part, and the second transition section is connected between the bending section and the second display part. When the foldable electronic device is in the folded state, the bending section faces the avoidance space. When the foldable electronic device is in the unfolded state, the bending section is supported on the first movable plate and the second movable plate.

[0034] Among them, for the technical effects brought by any design method in the second aspect, reference can be made to the technical effects brought by different design methods in the first aspect, which will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 Is a perspective view of a foldable electronic device provided in some embodiments of the present application in the unfolded state;

[0036] Figure 2 Is Figure 1 A partial exploded structural schematic diagram of the foldable electronic device shown;

[0037] Figure 3 Is Figure 1 A structural schematic diagram of the foldable electronic device shown when in the folded state;

[0038] Figure 4 Is Figure 1 A cross-sectional view of the foldable electronic device shown at line A-A;

[0039] Figure 5 Is a structural schematic diagram of a rotating shaft mechanism provided in some embodiments of the present application;

[0040] Figure 6 Is Figure 5 A structural schematic diagram of the rotating shaft mechanism shown when in the folded state;

[0041] Figure 7 Is a perspective view of the rotating shaft mechanism provided in some embodiments of the present application in the unfolded state;

[0042] Figure 8 Is Figure 7 A cross-sectional view of the rotating shaft mechanism shown at line B-B;

[0043] Figure 9 Is Figure 8 A cross-sectional view of the rotating shaft mechanism shown in the folded state;

[0044] Figure 10 Is Figure 9 An assembly schematic diagram of the rotating shaft mechanism and the folding screen shown in;

[0045] Figure 11 Is Figure 7Exploded view of the shaft seat, the first movable plate and the second movable plate in the shown rotating shaft mechanism;

[0046] Figure 12 For Figure 7 Stereogram of the first movable plate in the shown rotating shaft mechanism;

[0047] Figure 13 For Figure 7 Exploded view of the shown rotating shaft mechanism;

[0048] Figure 14 For Figure 7 Stereogram of the rotating shaft mechanism shown in which the first movable plate, the second movable plate, the first rotating door plate and the second rotating door plate are hidden;

[0049] Figure 15 For Figure 7 Cross-sectional view of the shown rotating shaft mechanism at the C-C line;

[0050] Figure 16 For Figure 15 Cross-sectional view of the shown rotating shaft mechanism in the folded state;

[0051] Figure 17 For Figure 10 Enlarged view of the area A in the shown exploded view;

[0052] Figure 18 For Figure 8 Enlarged view of the area B in the shown cross-sectional view;

[0053] Figure 19 For Figure 9 Enlarged view of the area C in the shown cross-sectional view;

[0054] Figure 20 For Figure 8 Cross-sectional view of the shown rotating shaft mechanism in the intermediate state;

[0055] Figure 21 For Figure 14 Enlarged view of the area D in the shown stereogram;

[0056] Figure 22 Stereogram of the partial structure of the rotating shaft mechanism in the unfolded state provided by other embodiments of the present application;

[0057] Figure 23 For Figure 22 Enlarged view of the area E in;

[0058] Figure 24 For Figure 22 Stereogram of the partial structure of the shown rotating shaft mechanism in the folded state;

[0059] Figure 25Partial cross-sectional view of the rotating shaft mechanism provided by some other embodiments of the present application in the deployed state;

[0060] Figure 26 Partial cross-sectional view of the rotating shaft mechanism provided by some other embodiments of the present application in the deployed state.

[0061] Reference numerals:

[0062] 100, Foldable electronic device; 10, Folding screen; 11, First display part; 12, Second display part; 13, Third display part; 131, First transition section; 132, Second transition section; 133, Bending section; 20, Housing assembly; 21, First housing; 211, First middle frame; 212, First back cover; C1, First accommodation cavity; 22, Second housing; 221, Second middle frame; 222, Second back cover; C2, Second accommodation cavity; 23, Rotating shaft mechanism; 231, Axle seat; 2311, Axle cover; 2311a, Bottom plate; 2311b, Side enclosure; 2311c, Mounting bump; 2312, Fixed seat; 2312a, First fixed seat; 2312b, Second fixed seat; 232, First rotating door panel; 2321, First bearing surface; 230, Fixed door panel; 2301, Third bearing surface; 2331, First movable plate; 2331a, First supporting surface; 2331b, First end; 2331c, Second end; 2331d, First bottom surface; 2331e, First bump; 2332, Second movable plate; 2332a, Second supporting surface; 2332b, Third end; 2332c, Fourth end; 2332d, Second bottom surface; 2332e, Second bump; 234, Second rotating door panel; 2341, Second bearing surface; 2351, First hinge part; 2352, Second hinge part; 2352a, First arc-shaped groove; 2353, Third hinge part; 2354, Fourth hinge part; 2354a, Second arc-shaped groove; 2355, First rotating shaft; 2356, Second rotating shaft; 2361, First main swing arm; 2361a, First slider; 2361b, First swing arm body; 2362, Second main swing arm; 2362a, Second slider; 2362b, Second swing arm body; 2363, First auxiliary swing arm; 2363a, First stop part; 2364, Second auxiliary swing arm; 2371, First connecting part; 2372, Second connecting part; 238, Synchronization component; 2381, First gear; 2382, Second gear; 2383, Intermediate gear; 2391, First damping component; 2391a, First cam; 2391b, Second cam; 2391c, Third cam; 2391d, Fourth cam; 2391e, First spring; 2392, Second damping component; 2393, Auxiliary spring; K1, First chute; K11, First arc-shaped wall surface; K12, Second arc-shaped wall surface; S1, First stop surface; S2, Second stop surface; S3, Third stop surface; S4, Fourth stop surface; K3, First avoidance hole; K31, First groove wall surface; 23a, First force-applying part; 23a1, First elastic arm; 23a2, Second elastic arm; 23b, Second force-applying part; 23b1, First elastic arm; 23b2, Second elastic arm; 23c, Force-applying part; 23c1, First magnet; 23c2, Second magnet; 23c3, Third magnet. Detailed implementation mode

[0063] In the following, 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.

[0064] In the embodiments of the present application, terms such as "exemplary" or "for example" are used to indicate 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. Rather, the use of terms such as "exemplary" or "for example" is intended to present related concepts in a specific manner.

[0065] In the embodiments of the present application, 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, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0066] In the description of the embodiments of the present application, "and / or" is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in the present application generally represents an "or" relationship between the associated objects before and after.

[0067] In the embodiments of the present application, orientation terms such as "upper", "lower", "lateral", "longitudinal", "horizontal" and "vertical" may include but are not limited to being defined relative to the schematic placement of components in the accompanying drawings. It should be understood that these directional terms can be relative concepts, and they are used for relative description and clarification, and they can change correspondingly according to the change of the orientation of the components in the accompanying drawings.

[0068] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected" and "coupled" should be understood in a broad sense. For example, "connected" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that the two are connected and the relative position relationship after connection remains unchanged. "Rotational connection" means that the two are connected and can rotate relative to each other after connection. "Sliding connection" means that the two are connected and can slide relative to each other after connection. "Transmission connection" means that among the two connected components, the movement of one component can be transmitted to the other component, and the connection methods between the two components include but are not limited to at least one of connection methods such as rotational connection, sliding connection, gear meshing transmission connection, sprocket transmission connection, and cam mechanism transmission connection.

[0069] In the description of the embodiments of the present application, the terms "coplanar", "collinear", "perpendicular", and "parallel" include the described situations and situations similar to the described situations, and the range of the similar situations is within an acceptable deviation range, where the acceptable deviation range is determined by those of ordinary skill in the art considering the measurements being discussed and the errors associated with the measurements of specific quantities (i.e., the limitations of the measurement system). For example, "collinear" all means approximately collinear within a certain error range, and the error range can be a deviation within 5°, 10°, or 15° relative to absolute collinearity. "Coplanar" all means approximately coplanar within a certain error range, and the error range can be a step difference of no more than 2 mm relative to absolute coplanarity. "Parallel" includes absolute parallel and approximate parallel, where the acceptable deviation range of approximate parallel can be, for example, a deviation within 5°, 8°, or 10°; "perpendicular" includes absolute perpendicular and approximate perpendicular, where the acceptable deviation range of approximate perpendicular can also be, for example, a deviation within 5°, 8°, or 10°.

[0070] The embodiments of the present application provide a foldable electronic device, which may include various electronic devices having a folding screen and capable of changing the unfolded or folded form of the folding screen and itself. The foldable electronic device has at least two states: an unfolded state and a folded state. In some cases, the foldable electronic device may further include a third state, that is, an intermediate state between the unfolded state and the folded state. It can be understood that the intermediate state can be any one or more states of the foldable electronic device between the unfolded state and the folded state. Under different usage requirements, the foldable electronic device can be switched to different states.

[0071] In the foldable electronic device in the embodiments of the present application, by splitting the original fixed door panel in the rotating shaft mechanism into a first movable plate and a second movable plate that can rotate relative to the fixed seat, during the process of the rotating shaft mechanism switching from the unfolded state to the folded state, the first movable plate and the second movable plate can rotate relative to the fixed seat to avoid the folding screen in the folded state, so as to provide a bending space and a buffer space for the third display part of the folding screen, and prevent the rotating shaft mechanism from squeezing the folding screen during the folding process of the foldable electronic device or when it falls.

[0072] Specifically, the foldable electronic device includes, but is not limited to, mobile phones, tablet computers, laptop computers, e-book readers, cameras, wearable devices, household electronic devices, etc. For the sake of easy understanding, in the embodiments of the present application, a foldable electronic device is taken as an example of a folding screen mobile phone for illustration.

[0073] Please refer to Figure 1 and Figure 2 , Figure 1A perspective view of the foldable electronic device 100 provided by some embodiments of the present application in the unfolded state. Figure 2 is Figure 1 A partial exploded structural schematic diagram of the foldable electronic device 100 shown. The foldable electronic device 100 is approximately in the shape of a rectangular flat plate in the unfolded state. In some other embodiments, the shape of the foldable electronic device 100 can also be a square flat plate, a circular flat plate, an oval flat plate, etc.

[0074] The foldable electronic device 100 includes a folding screen 10 and a housing assembly 20.

[0075] The folding screen 10 is used to display information such as images and videos. The folding screen 10 is a flexible screen and can be bent and deformed between the folded state and the unfolded state. Please refer to Figure 1 and Figure 2 , the folding screen 10 includes a first display portion 11, a second display portion 12, and a third display portion 13. The third display portion 13 is connected between the first display portion 11 and the second display portion 12.

[0076] Please refer to Figure 3 , Figure 3 is Figure 1 A structural schematic diagram of the foldable electronic device 100 shown when it is in the folded state. The folding screen 10 in the foldable electronic device 100 is also in the folded state. Specifically, when the folding screen 10 is in the folded state, the first display portion 11 and the second display portion 12 of the folding screen 10 are approximately parallel and opposite, and the third display portion 13 is bent. That is to say, the third display portion 13 is the bendable portion of the folding screen 10. In this state, the size of the foldable electronic device 100 is smaller and it is convenient to carry. Among them, the first display portion 11 and the second display portion 12 being opposite means that the display surfaces of the first display portion 11 and the second display portion 12 face each other.

[0077] When the folding screen 10 is in the folded state, please continue to refer to Figure 3, the third display portion 13 is folded into a water droplet shape. Specifically, the third display portion 13 includes a first transition segment 131, a second transition segment 132, and a bending segment 133. The first transition segment 131 is connected between the bending segment 133 and the first display portion 11. The second transition segment 132 is connected between the bending segment 133 and the second display portion 12. The distance between one end of the first transition segment 131 connected to the first display portion 11 and one end of the second transition segment 132 connected to the second display portion 12 is a first distance d1, and the distance between one end of the first transition segment 131 connected to the bending segment 133 and one end of the second transition segment 132 connected to the bending segment 133 is a second distance d2, and the second distance d2 is greater than the first distance d1. In this way, the bending radius of the third display portion 13 can be made larger, and the bending of the third display portion 13 when the folding screen 10 is folded is more natural, which is beneficial to reducing the creases of the folding screen 10 and can reduce the wear of the folding screen 10, making the folding screen 10 more durable.

[0078] It can be understood that when the foldable electronic device 100 is in the folded state, according to actual needs, the third display portion 13 can also be folded into other shapes, and the present application does not limit this.

[0079] When the foldable electronic device 100 is in the folded state, please refer to Figure 3 , the housing assembly 20 protects the folding screen 10, and the folding screen 10 is not visible to the user. That is, the foldable electronic device 100 is an in-foldable electronic device. In this way, the folding screen 10 can be prevented from being scratched by hard objects, and in this state, the size of the foldable electronic device 100 is smaller and convenient to carry.

[0080] The housing assembly 20 is used to carry the folding screen 10. Please refer to Figure 2 , the housing assembly 20 includes a first housing 21, a second housing 22, and a rotating shaft mechanism 23. The first housing 21 can be used to carry the first display portion 11 of the folding screen 10. The second housing 22 can be used to carry the second display portion 12 of the folding screen 10. The rotating shaft mechanism 23 is connected between the first housing 21 and the second housing 22 and can be used to carry the third display portion 13 of the folding screen 10.

[0081] In this embodiment, the housing assembly 20 includes two housings, namely a first housing 21 and a second housing 22, and the housing assembly 20 can be folded once. It can be understood that in other embodiments, the housing assembly 20 may further include three, four or more housings. That is to say, in addition to the above-mentioned first housing 21 and second housing 22, the housing assembly 20 may further include at least one third housing. In this case, the first housing 21, the second housing 22 and at least one third housing can be connected in sequence, and adjacent two housings can be connected by a rotating shaft mechanism 23. In this way, the housing assembly 20 can be folded multiple times (twice or more).

[0082] Please refer to Figure 4 , Figure 4 for Figure 1 a cross-sectional view of the foldable electronic device 100 shown at the A-A line. The first housing 21 may include a first middle frame 211 and a first back cover 212, and the first display portion 11 of the folding screen 10 is carried on the first middle frame 211. The first back cover 212 is fixedly connected to a side of the first middle frame 211 away from the first display portion 11, and the first back cover 212 can be replaced with a display screen. The first housing 21 can be connected to the rotating shaft mechanism 23 by means of the first middle frame 211 or the first back cover 212. A first accommodation cavity C1 is formed between the first middle frame 211 and the first back cover 212, and the first accommodation cavity C1 can be used to accommodate electronic components such as a main board, a camera module, and a battery.

[0083] The second housing 22 may include a second middle frame 221 and a second back cover 222, and the second display portion 12 of the folding screen 10 is carried on the second middle frame 221. The second back cover 222 is fixedly connected to a side of the second middle frame 221 away from the second display portion 12, and the second back cover 222 can be replaced with a display screen. The second housing 22 can be connected to the rotating shaft mechanism 23 by means of the second middle frame 221 or the second back cover 222. A second accommodation cavity C2 is formed between the second middle frame 221 and the second back cover 222. The second accommodation cavity C2 can be used to accommodate electronic components such as a secondary board, a speaker module, an antenna, and a battery.

[0084] The first housing 21 and the second housing 22 can achieve relative rotation through a rotating shaft mechanism 23. Specifically, the rotating shaft mechanism 23 can switch between an unfolded state and a folded state, thereby allowing the entire foldable electronic device 100 to switch between the unfolded state and the folded state. It can be understood that when the rotating shaft mechanism 23 is in the unfolded state, the housing assembly 20 and the foldable electronic device 100 including the housing assembly 20 are also in the unfolded state, and the angle between the first housing 21 and the second housing 22 is approximately 180°, and the angle between the first display portion 11 and the second display portion 12 of the folding screen 10 is also approximately 180°. When the rotating shaft mechanism 23 is in the folded state, the housing assembly 20 including the rotating shaft mechanism 23 and the foldable electronic device 100 including the housing assembly 20 are also in the folded state, and the angle between the first housing 21 and the second housing 22 is approximately 0°, and the angle between the first display portion 11 and the second display portion 12 of the folding screen 10 is also approximately 0°.

[0085] For the convenience of describing the following embodiments, for the foldable electronic device 100, an XYZ coordinate system is established. The thickness direction of the housing assembly 20 is defined as the Z-axis direction, the extending direction of the rotation axis of the first housing 21 is defined as the Y-axis direction, and the direction perpendicular to both the Y-axis and the Z-axis is defined as the X-axis direction. It can be understood that the coordinate system setting of the foldable electronic device 100 can be flexibly set according to actual needs, and no specific limitation is made here.

[0086] In Figure 1 In the foldable electronic device 100 shown, the width direction of the foldable electronic device 100 is parallel to the X-axis direction, the length direction is parallel to the Y-axis direction, and the foldable electronic device 100 can be folded transversely. Therefore, the foldable electronic device 100 in this embodiment is a horizontally foldable electronic device. It can be understood that in other embodiments, the width direction of the foldable electronic device 100 can also be parallel to the Y-axis direction, and the length direction is parallel to the X-axis direction. In this case, the foldable electronic device 100 is a vertically foldable electronic device.

[0087] Please refer to Figure 5 , Figure 5 which is a schematic structural diagram of a rotating shaft mechanism 23 provided by some embodiments of the present application. The rotating shaft mechanism 23 includes a shaft seat 231, a first rotating door panel 232, a fixed door panel 230, and a second rotating door panel 234. Figure 5 Only some components included in the rotating shaft mechanism 23 are schematically shown, and the actual shape, actual size, actual position, and actual structure of these components are not limited by Figure 5 this.

[0088] The shaft seat 231 can provide an installation base for other components of the rotating shaft mechanism 23. The length direction of the shaft seat 231 is parallel to the Y-axis direction, the width direction is parallel to the X-axis direction, and the thickness direction is parallel to the Z-axis direction. The shaft seat 231 includes a shaft cover 2311 and a fixed seat 2312.

[0089] The shaft cover 2311 can be used as an exterior part (i.e., an externally visible component) of the rotating shaft mechanism 23. The materials of the shaft cover 2311 include but are not limited to metals and plastics. Please refer to Figure 5 , the shaft cover 2311 includes a bottom plate 2311a and a side enclosure plate 2311b. The side enclosure plate 2311b surrounds the outer edge of the bottom plate 2311a for one week, and a receiving space is defined between the side enclosure plate 2311b and the bottom plate 2311a. Some components of the rotating shaft mechanism 23 can be received in the above-mentioned receiving space. In this way, some components of the rotating shaft mechanism 23 can be hidden inside the shaft cover 2311, which can improve the appearance aesthetics of the foldable electronic device 100.

[0090] The fixed seat 2312 is disposed inside the shaft cover 2311 and is used to provide an installation base for some components of the rotating shaft mechanism 23. Specifically, the fixed seat 2312 can be fixedly connected to the bottom plate 2311a of the shaft cover 2311. The connection manner between the fixed seat 2312 and the shaft cover 2311 includes but is not limited to connection by fasteners such as screws, snap connection, welding, etc.

[0091] The first rotating door panel 232 and the second rotating door panel 234 are respectively located on opposite sides of the shaft seat 231. The fixed door panel 230 is located between the first rotating door panel 232 and the second rotating door panel 234, and the fixed door panel 230 is relatively fixed to the shaft cover 2311. Both the first rotating door panel 232 and the second rotating door panel 234 can rotate relative to the shaft seat 231 between the unfolded position and the folded position, so that the rotating shaft mechanism 23 can be switched between the unfolded state and the folded state.

[0092] The first rotating door panel 232, the second rotating door panel 234, and the fixed door panel 230 can all be used to carry part of the folding screen 10. Specifically, the first rotating door panel 232 can be used to carry the first transition section 131 of the third display section 13, the second rotating door panel 234 can be used to carry the second transition section 132 of the third display section 13, and the fixed door panel 230 can be used to carry the bent section 133 of the third display section 13. Please refer to Figure 5 , the first rotating door panel 232 includes a first bearing surface 2321, the second rotating door panel 234 includes a second bearing surface 2341, and the fixed door panel 230 includes a third bearing surface 2301.

[0093] Figure 5The rotating shaft mechanism 23 therein is in the unfolded state. In this state, the first rotating door panel 232 and the second rotating door panel 234 are in the unfolded positions, the orientations of the first bearing surface 2321, the second bearing surface 2341, and the third bearing surface 2301 are the same and the first bearing surface 2321, the second bearing surface 2341, and the third bearing surface 2301 are coplanarly arranged, that is, the angle between the first bearing surface 2321 and the support surface is approximately 180°, and the angle between the second bearing surface 2341 and the third bearing surface 2301 is also approximately 180°. In this way, when the rotating shaft mechanism 23 is in the unfolded state, the third display part 13 can be jointly borne by the first rotating door panel 232, the second rotating door panel 234, and the fixed door panel 230, so that the third display part 13 is in the unfolded state, and the flatness of the third display part 13 can be ensured when the folding screen 10 is in the unfolded state.

[0094] Please refer to Figure 6 , Figure 6 is Figure 5 the schematic structural diagram of the rotating shaft mechanism 23 shown in the folded state. In this state, the first rotating door panel 232 and the second rotating door panel 234 are in the folded positions, the first bearing surface 2321 faces the second bearing surface 2341, and the first bearing surface 2321 and the second bearing surface 2341 are inclined or perpendicular to the third bearing surface 2301, so that the third display part 13 is in the folded state.

[0095] In some embodiments, please refer to Figure 6 , the angles by which the first rotating door panel 232 and the second rotating door panel 234 rotate from the unfolded position to the folded position are θ1 and θ2 respectively, and the rotation angles θ1 and θ2 are both greater than 90°. In this way, the third display part 13 can be folded into a water droplet shape. In some other embodiments, the rotation angles θ1 and θ2 can also be less than or equal to 90° to fold the third display part 13 into other shapes, and the present application does not make specific limitations thereto.

[0096] The rotating shaft mechanism 23 in this embodiment can effectively support the folding screen 10 in the unfolded state, and has a simple structure. However, when the foldable electronic device 100 drops, the fixed door panel 230 may squeeze the third display part 13 of the folding screen 10, damaging the folding screen 10. In addition, since the bending radius of the folding screen 10 is smaller than the bending radius of the rotating shaft mechanism 23 when the foldable electronic device 100 is folded from the unfolded state to the folded state, therefore, in the folded state or during the folding process, the third display part 13 of the folding screen 10 may also be damaged by being squeezed by the fixed door panel 230.

[0097] To solve the above technical problems, please refer to Figures 7 - 8 , Figure 7A perspective view of the rotating shaft mechanism 23 in the deployed state is provided for some embodiments of the present application. Figure 8 For Figure 7 The cross-sectional view of the rotating shaft mechanism 23 shown at line B-B. The rotating shaft mechanism 23 includes a shaft seat 231, a first rotating door panel 232, a first movable plate 2331, a second movable plate 2332, and a second rotating door panel 234. The structures of the shaft seat 231, the first rotating door panel 232, and the second rotating door panel 234 in this embodiment can be designed with reference to Figure 5 the structures of the shaft seat 231, the first rotating door panel 232, and the second rotating door panel 234 in the embodiments shown therein, and will not be described in detail herein. Alternatively, in other embodiments, the rotating shaft mechanism 23 may not include at least one of the first rotating door panel 232 and the second rotating door panel 234.

[0098] Please refer to Figures 7 - 8 , the first movable plate 2331 and the second movable plate 2332 are arranged in the first direction. Exemplarily, the first direction may be parallel to the X-axis direction. The first movable plate 2331 and the second movable plate 2332 may be located on the same side of the fixed seat 2312. Exemplarily, the first movable plate 2331 and the second movable plate 2332 may be located on the same side of the fixed seat 2312 in the Z-axis direction.

[0099] Both the first movable plate 2331 and the second movable plate 2332 are generally plate-shaped. The first movable plate 2331 includes a first support surface 2331a, and the first movable plate 2331 includes opposite first end 2331b and second end 2331c. The second movable plate 2332 includes a second support surface 2332a. The second movable plate 2332 includes opposite third end 2332b and fourth end 2332c. In the first direction, the first end 2331b is always located between the second end 2331c and the second movable plate 2332, and the third end 2332b is always located between the fourth end 2332c and the first movable plate 2331. That is, regardless of whether the rotating shaft mechanism 23 is in the deployed state or the folded state, the arrangement manner of the first end 2331b and the second end 2331c in the first direction and the arrangement direction of the third end 2332b and the fourth end 2332c in the first direction do not change.

[0100] Both the first movable plate 2331 and the second movable plate 2332 can rotate relative to the fixed seat 2312. Among them, the first movable plate 2331 can rotate relative to the fixed seat 2312 about a first axis, and the first axis is perpendicular to the first direction. The second movable plate 2332 can rotate relative to the fixed seat 2312 about a second axis. The second axis may be parallel to the first axis. Further, the first axis is also perpendicular to the arrangement direction of the first movable plate 2331 and the fixed seat 2312 (that is, the Z-axis direction). Exemplarily, both the first axis and the second axis are parallel to the Y-axis direction.

[0101] Please refer to Figure 7 and Figure 8 When the rotating shaft mechanism 23 is in the unfolded state, the first movable plate 2331 and the second movable plate 2332 can be arranged side by side in the first direction. Exemplarily, the first support surface 2331a and the second support surface 2332a can be coplanar and both the first support surface 2331a and the second support surface 2332a face away from the fixed seat 2312. In this state, both the first movable plate 2331 and the second movable plate 2332 are in the support position, and can effectively support the folded screen 10 in the unfolded state, which can improve the flatness of the folded screen 10 in the unfolded state.

[0102] On this basis, in order to effectively support the entire third display part 13 of the folded screen 10, please continue to refer to Figures 7 - 8 When the rotating shaft mechanism 23 is in the unfolded state, the first bearing surface 2321 is coplanar with the first support surface 2331a, and the second bearing surface 2341 is coplanar with the second support surface 2332a.

[0103] Please refer to Figure 8 and combine with Figure 9 , Figure 9 For Figure 8 the cross-sectional view of the rotating shaft mechanism 23 in the folded state shown in. When the rotating shaft mechanism 23 switches from the unfolded state to the folded state, the first end 2331b of the first movable plate 2331 can rotate relative to the second end 2331c in a direction approaching the fixed seat 2312, and the third end 2332b of the second movable plate 2332 can rotate relative to the fourth end 2332c in a direction approaching the fixed seat 2312, so as to form an avoidance space between the first support surface 2331a and the second support surface 2332a. During this process, the first end 2331b of the first movable plate 2331 can rotate relative to the second end 2331c along the first rotation direction, the third end 2332b of the second movable plate 2332 can rotate relative to the fourth end 2332c along the second rotation direction, and the first rotation direction is opposite to the second rotation direction.

[0104] That is to say, when the rotating shaft mechanism 23 switches from the unfolded state to the folded state, the first end 2331b of the first movable plate 2331 can rotate relative to the second end 2331c in a direction away from the folded screen 10, and the third end 2332b of the second movable plate 2332 can rotate relative to the fourth end 2332c in a direction away from the folded screen 10.

[0105] Exemplarily, please refer to Figure 9 , when the rotating shaft mechanism 23 is in the folded state, both the first movable plate 2331 and the second movable plate 2332 are in the avoidance position. In the first direction ( Figure 9in the X-axis direction) and in the direction from the second movable plate 2332 to the first movable plate 2331, the first support surface 2331a is formed as an inclined surface inclined in the direction away from the fixed seat 2312, and the second support surface 2332a is formed as an inclined surface inclined in the direction close to the fixed seat 2312. In this state, the first support surface 2331a and the second support surface 2332a are no longer coplanar, the first support surface 2331a and the second support surface 2332a are substantially V-shaped, and the distance between the first end 2331b and the third end 2332b is less than the distance between the second end 2331c and the fourth end 2332c. In this way, an avoidance space for avoiding the folding screen 10 can be formed between the first support surface 2331a and the second support surface 2332a.

[0106] Please refer to Figure 10 , Figure 10 is Figure 9 the assembly schematic diagram of the rotating shaft mechanism 23 and the folding screen 10 shown in. For the convenience of explaining the position change of the first movable plate 2331 and the second movable plate 2332 during the folding process of the rotating shaft mechanism 23, Figure 10 the positions of the first movable plate 2331 and the second movable plate 2332 when the rotating shaft mechanism 23 is in the unfolded state are shown by dotted lines in.

[0107] During the process of the rotating shaft mechanism 23 switching from the unfolded state to the folded state, the first end 2331b of the first movable plate 2331 can move relative to the second end 2331c in the direction away from the folding screen 10, and at the same time, the third end 2332b of the second movable plate 2332 can move relative to the fourth end 2332c in the direction away from the folding screen 10.

[0108] In this way, on the one hand, the first movable plate 2331 and the second movable plate 2332 can provide an avoidance space for the folding screen 10 in the folded state, avoiding the rotation shaft mechanism 23 in the folded state from squeezing the folding screen 10. Moreover, when the foldable electronic device 100 drops, this avoidance space can provide a buffer space for the folding screen 10, avoiding the rotation shaft mechanism 23 from squeezing the folding screen 10, thereby improving the reliability of the folding screen 10 and extending the service life of the folding screen 10. On the other hand, the first movable plate 2331 and the second movable plate 2332 achieve the avoidance of the folding screen 10 by rotating relative to the fixed seat 2312, which can reduce the moving dimension of the first movable plate 2331 relative to the fixed seat 2312 in the Z-axis direction and the moving dimension of the second movable plate 2332 relative to the fixed seat 2312 in the Z-axis direction. Furthermore, it can reduce the moving space reserved for the first movable plate 2331 and the second movable plate 2332 in the rotation shaft mechanism 23, avoiding the above-mentioned moving space from occupying the design space of structures such as the damping component in the rotation shaft mechanism 23, which is beneficial to improving the damping feel and hovering function of the rotation shaft mechanism 23 and the foldable electronic device 100, and is also beneficial to thinning the thickness of the rotation shaft mechanism 23 to achieve the thin and light design of the foldable electronic device 100.

[0109] In addition, for the rotation shaft mechanism 23 in this embodiment, there is no need to provide grooves for avoiding the folding screen 10 on the first movable plate 2331 and the second movable plate 2332, which can increase the effective support area of the first movable plate 2331 and the second movable plate 2332 for the folding screen 10. Thus, the first movable plate 2331 and the second movable plate 2332 can effectively support the folding screen 10 in the unfolded state, which is beneficial to improving the flatness of the folding screen 10 in the unfolded state, and further beneficial to reducing the creases of the folding screen 10 and optimizing the screen light and shadow.

[0110] In some embodiments, during the process of the rotation shaft mechanism 23 switching from the folded state to the unfolded state, the first end 2331b of the first movable plate 2331 can rotate relative to the second end 2331c in a direction away from the fixed seat 2312, and the third end 2332b of the second movable plate 2332 can rotate relative to the fourth end 2332c in a direction away from the fixed seat 2312. That is to say, during the process of the rotation shaft mechanism 23 switching from the folded state to the unfolded state, the first end 2331b of the first movable plate 2331 can rotate relative to the second end 2331c in a direction approaching the folding screen 10, and the third end 2332b of the second movable plate 2332 can rotate relative to the fourth end 2332c in a direction approaching the folding screen 10.

[0111] In this way, in the process of switching the hinge mechanism 23 from the folded state to the unfolded state, the first movable plate 2331 and the second movable plate 2332 can rotate from the avoidance position to the supporting position, so that the folding screen 10 in the unfolded state can be effectively supported by the first movable plate 2331 and the second movable plate 2332, which can improve the supporting performance of the first movable plate 2331 and the second movable plate 2332.

[0112] In some embodiments, see Figure 9 When the rotating shaft mechanism 23 is in the folded state, the angle α between the first supporting surface 2331a and the second supporting surface 2332a is greater than or equal to 140 degrees and less than or equal to 170 degrees. Exemplarily, the angle α between the first supporting surface 2331a and the second supporting surface 2332a can be 140 degrees, 145 degrees, 150 degrees, 155 degrees, 160 degrees, 165 degrees, 170 degrees, etc. In this way, the first movable plate 2331 and the second movable plate 2332 can provide sufficient avoidance space for the folding screen 10 when the hinge mechanism 23 is in a folded state, and can provide a buffer space for the folding screen 10 when the foldable electronic device 100 falls, which can effectively prevent the first movable plate 2331 and the second movable plate 2332 from squeezing the folding screen 10; at the same time, it is beneficial to reduce the activity space reserved for the first movable plate 2331 and the second movable plate 2332 in the hinge mechanism 23, which is beneficial to optimize the layout and performance of the hinge mechanism 23, and is beneficial to reduce the thickness of the hinge mechanism 23, so as to realize the lightweight design of the foldable electronic device 100.

[0113] The “angle between the first support surface 2331a and the second support surface 2332a” refers to the angle that the first support surface 2331a rotates around the intersection between the first support surface 2331a and the second support surface 2332a toward the second support surface 2332a until it coincides with the second support surface 2332a.

[0114] In some embodiments, when the hinge mechanism 23 switches from the unfolded state to the folded state, the angle β1 of the first support surface 2331a relative to the reference plane can be greater than or equal to 5 degrees and less than or equal to 20 degrees. The reference plane is perpendicular to the Z-axis direction. Exemplarily, β1 can be 5 degrees, 6 degrees, 7 degrees, 8 degrees, 9 degrees, 10 degrees, 11 degrees, 12 degrees, 13 degrees, 14 degrees, 15 degrees, 16 degrees, 17 degrees, 18 degrees, 19 degrees, 20 degrees, etc. In this way, the hinge mechanism 23 can not only provide sufficient avoidance space for the folding screen 10, but also realize the lightweight design of the hinge mechanism 23 and the foldable electronic device 100. In addition, the design difficulty of the hinge mechanism 23 can also be reduced.

[0115] Similarly, when the rotating shaft mechanism 23 switches from the unfolded state to the folded state, the angle β2 by which the second support surface 2332a rotates relative to the reference plane can be greater than or equal to 5 degrees and less than or equal to 20 degrees. The specific angle of β2 can be designed with reference to β1 and will not be elaborated here.

[0116] In some embodiments, referring to Figure 9 , when the rotating shaft mechanism 23 is in the folded state, the first support surface 2331a and the second support surface 2332a are symmetrically arranged. In this way, the symmetry of the avoidance space can be improved, which is beneficial to enhancing the avoidance function of the avoidance space.

[0117] Based on any of the above embodiments, in order to achieve the rotational connection between the first movable plate 2331 and the fixed seat 2312, referring to Figures 8 - 9 , a first hinge portion 2351 is provided on the fixed seat 2312, and a second hinge portion 2352 is provided on the first movable plate 2331. One of the first hinge portion 2351 and the second hinge portion 2352 includes a first arc-shaped groove 2352a, and the other of the first hinge portion 2351 and the second hinge portion 2352 is a first arc-shaped rib. The first arc-shaped rib is in sliding and rotational cooperation with the first arc-shaped groove 2352a, so that the first movable plate 2331 can rotate relative to the fixed seat 2312 about the first axis. Among them, the first axis is collinear with the center line of the first arc-shaped groove 2352a.

[0118] In this way, the rotational connection between the first movable plate 2331 and the fixed seat 2312 can be conveniently achieved, and the first axis is a virtual axis, which is beneficial to reducing the rotational radius of the first movable plate 2331 relative to the fixed seat 2312 and the arc length corresponding to the rotational path of the first movable plate 2331 relative to the fixed seat 2312. Therefore, it is beneficial to reduce the activity space reserved for the rotation of the first movable plate 2331 in the rotating shaft mechanism 23, which is beneficial to realizing the thin and light design of the rotating shaft mechanism 23 and the foldable electronic device 100, and can optimize the layout of the rotating shaft mechanism 23 and improve the overall performance of the rotating shaft mechanism 23.

[0119] In some embodiments, referring to Figures 11 - 12 , Figure 11 For Figure 7 the exploded view of the shaft seat 231, the first movable plate 2331 and the second movable plate 2332 in the rotating shaft mechanism 23 shown, Figure 12 For Figure 7Stereogram of the first movable plate 2331 in the shown rotating shaft mechanism 23. The first movable plate 2331 further includes a first bottom surface 2331d, and the first bottom surface 2331d faces away from the first support surface 2331a. The second hinge portion 2352 is provided on the first bottom surface 2331d. In this embodiment, the second hinge portion 2352 is a bump protruding from the first bottom surface 2331d, and a first arc-shaped groove 2352a is formed on the second hinge portion 2352, and the first arc-shaped groove 2352a forms an arc-shaped groove arched in a direction away from the first bottom surface 2331d. In this case, the first hinge portion 2351 is an arc-shaped convex rib. The arc-shaped convex rib is an arc-shaped convex rib arched in a direction towards the bottom plate 2311a.

[0120] In this way, please refer to Figure 9 and in combination with Figure 10 , during the process of the rotating shaft mechanism 23 switching from the unfolded state to the folded state, not only can the first end 2331b of the first movable plate 2331 rotate relative to the second end 2331c towards the direction close to the fixed seat 2312, but also the whole first movable plate 2331 can move in a direction away from the second movable plate 2332, which can avoid interference between the first movable plate 2331 and the second movable plate 2332 during the rotation process, and is beneficial to reducing or eliminating the distance between the end face of the first end 2331b of the first movable plate 2331 and the end face of the second end 2331c of the second movable plate 2332 when the rotating shaft mechanism 23 is in the folded state, thereby improving the support performance of the first movable plate 2331 and the second movable plate 2332.

[0121] For example, in Figure 8 the shown embodiment, when the rotating shaft mechanism 23 is in the unfolded state, the end face of the first end 2331b of the first movable plate 2331 faces the second movable plate 2332, the end face of the third end 2332b of the second movable plate 2332 faces the first movable plate 2331, and the end face of the third end 2332b is in contact with the end face of the first end 2331b. In this way, when the rotating shaft mechanism 23 is in the unfolded state, there is no gap between the end face of the first end 2331b and the end face of the third end 2332b, which can effectively improve the support performance of the first movable plate 2331 and the second movable plate 2332, and is beneficial to reducing the crease of the folding screen 10 and optimizing the screen light and shadow.

[0122] It can be understood that in other embodiments, it can also be that the second hinge portion 2352 is a first arc-shaped convex rib, and the first hinge portion 2351 includes a first arc-shaped groove 2352a. In this case, the first arc-shaped convex rib is an arc-shaped convex rib arched in a direction away from the first bottom surface 2331d. The first arc-shaped groove 2352a is an arc-shaped groove arched in a direction towards the bottom plate 2311a.

[0123] In some embodiments, please refer toFigure 11 The fixed seat 2312 includes a first fixed seat 2312a and a second fixed seat 2312b, and the first fixed seat 2312a and the second fixed seat 2312b are arranged along the Y-axis direction. The first fixed seat 2312a and the second fixed seat 2312b can be connected to the shaft cover 2311 through fasteners such as screws. It can be understood that in other embodiments, the first fixed seat 2312a and the second fixed seat 2312b can also be connected to the shaft cover 2311 through connection methods such as snap connection and welding.

[0124] There are multiple first hinge portions 2351, and the multiple first hinge portions 2351 are spaced apart in the extending direction of the first axis (which is also the Figure 11 Y-axis direction in

[0125] ). The number of the second hinge portions 2352 is the same as that of the first hinge portions 2351. Exemplarily, there are two first hinge portions 2351, one of the first hinge portions 2351 is disposed on the end face of the first fixed seat 2312a facing away from the second fixed seat 2312b, and the other first hinge portion 2351 is disposed on the end face of the second fixed seat 2312b facing away from the first fixed seat 2312a. In this way, the cooperation reliability between the fixed seat 2312 and the first movable plate 2331 can be improved.

[0125] To achieve the rotational connection between the second movable plate 2332 and the fixed seat 2312, please refer to Figures 8 - 9 . A third hinge portion 2353 is provided on the fixed seat 2312, and a fourth hinge portion 2354 is provided on the second movable plate 2332. One of the third hinge portion 2353 and the fourth hinge portion 2354 includes a second circular arc groove 2354a, and the other of the third hinge portion 2353 and the fourth hinge portion 2354 is a second circular arc rib. The second circular arc rib is in sliding and rotational cooperation with the second circular arc groove 2354a, so that the second movable plate 2332 can rotate relative to the fixed seat 2312 around the second axis. Among them, the second axis is collinear with the center line of the second circular arc groove 2354a.

[0126] The structures of the third hinge portion 2353 and the fourth hinge portion 2354 can be designed with reference to the structures of the first hinge portion 2351 and the second hinge portion 2352 respectively, and will not be elaborated here.

[0127] In some embodiments, please refer to Figures 13 - 14 . Figure 13 For Figure 7 the exploded view of the shown rotating shaft mechanism 23, Figure 14 For Figure 7The perspective view of the rotating shaft mechanism 23 shown in the figure hides the first movable plate 2331, the second movable plate 2332, the first rotating door plate 232, and the second rotating door plate 234. The rotating shaft mechanism 23 further includes a first main swing arm 2361, a second main swing arm 2362, a first sub-swing arm 2363, a second sub-swing arm 2364, a first connecting member 2371, and a second connecting member 2372.

[0128] Wherein, one of the first main swing arm 2361 and the first sub-swing arm 2363 can form the first rotating member of the rotating shaft mechanism 23, and one of the second main swing arm 2362 and the second sub-swing arm 2364 can form the second rotating member of the rotating shaft mechanism 23. In this embodiment, the first main swing arm 2361 is taken as the first rotating member and the second main swing arm 2362 is taken as the second rotating member for illustration, but this should not be construed as a limitation to the present application.

[0129] The first main swing arm 2361 and the second main swing arm 2362 are respectively arranged on opposite sides of the fixed seat 2312, and both the first main swing arm 2361 and the second main swing arm 2362 can rotate relative to the fixed seat 2312 between the deployed position and the folded position. Exemplarily, the first main swing arm 2361 and the second main swing arm 2362 can be arranged on opposite sides of the fixed seat 2312 along the X-axis direction. The first main swing arm 2361 can rotate relative to the fixed seat 2312 about the third axis, and the second main swing arm 2362 can rotate relative to the fixed seat 2312 about the fourth axis. Both the third axis and the fourth axis are parallel to the Y-axis direction.

[0130] In some embodiments, in order to realize the relative rotation of the first main swing arm 2361 and the fixed seat 2312, please refer to Figures 15 - 16 , Figure 15 is Figure 7 the cross-sectional view of the rotating shaft mechanism 23 shown in the figure at the C-C line, Figure 16 is Figure 15 the cross-sectional view of the rotating shaft mechanism 23 shown in the figure in the folded state. The first main swing arm 2361 includes a first slider 2361a and a first swing arm body 2361b. The first slider 2361a is fixedly connected to one end of the first swing arm body 2361b, and when the rotating shaft mechanism 23 is in the deployed state, at least a part of the first swing arm body 2361b is located outside the fixed seat 2312 (as shown in Figure 15 ).

[0131] The first slider 2361a can be arc-shaped. A first chute K1 is defined between the first movable plate 2331 and the fixed seat 2312. The first chute K1 is arc-shaped, and the first slider 2361a is slidably engaged with the first chute K1 so that the first main swing arm 2361 can rotate relative to the fixed seat 2312 between the deployed position and the folded position. The shape of the first slider 2361a can be adapted to the shape of the first chute K1.

[0132] In Figure 15 , the first main swing arm 2361 is in the deployed position. In Figure 16 , the first main swing arm 2361 is in the folded position. Among them, the rotation axis of the first main swing arm 2361 relative to the fixed seat 2312 is collinear with the center line of the first chute K1, and the axis of rotation of the first main swing arm 2361 relative to the fixed seat 2312 (that is, the third axis) is collinear with the axis of rotation of the first movable plate 2331 relative to the fixed seat 2312 (that is, the first axis).

[0133] Specifically, please refer to Figure 16 , the first chute K1 includes opposite first arcuate wall surfaces K11 and second arcuate wall surfaces K12. The first arcuate wall surface K11 is located on the first bottom surface 2331d of the first movable plate 2331, and the second arcuate wall surface K12 is formed on the fixed seat 2312. Among them, the first arcuate wall surface K11 is an arcuate surface arched in a direction away from the first support surface 2331a, and the shape of the second arcuate wall surface K12 is the same as the shape of the first arcuate wall surface K11.

[0134] Since the first axis and the third axis are collinear, when the rotating shaft mechanism 23 changes from the deployed state to the folded state, please refer to Figure 15 and combine with Figure 16 , the first end 2331b of the first movable plate 2331 rotates toward the fixed seat 2312 relative to the second end 2331c, and the first movable plate 2331 as a whole can also move in a direction away from the second movable plate 2332.

[0135] In this way, during the process of the rotating shaft mechanism 23 changing from the deployed state to the folded state, the first arcuate wall surface K11 of the first chute K1 also rotates by a certain angle along with the first movable plate 2331, so as to increase the overlapping amount between the first main swing arm 2361 in the folded position and the first arcuate wall surface K11. That is to say, it can increase the overlapping amount between the first main swing arm 2361 in the folded position and the first chute K1, so as to avoid the first main swing arm 2361 slipping out of the first chute K1 and improve the connection reliability between the first main swing arm 2361 and the first chute K1. In addition, by defining the first chute K1 between the first movable plate 2331 and the fixed seat 2312, compared with the scheme of directly arranging the first chute K1 on the fixed seat 2312, it can also effectively reduce the space occupied by the first chute K1 on the fixed seat 2312, thereby reducing the thickness of the rotating shaft mechanism 23 and realizing the thin and light design of the rotating shaft mechanism 23 and the foldable electronic device 100.

[0136] Similarly, in order to realize the relative rotation of the second main swing arm 2362 and the fixed seat 2312, please continue Figures 15 - 16, the second main swing arm 2362 includes a second slider 2362a, and the second slider 2362a is arc-shaped. A second chute K2 is defined between the second movable plate 2332 and the fixed seat 2312. The second chute K2 is arc-shaped, and the second slider 2362a is slidably engaged with the second chute K2 so that the second main swing arm 2362 can rotate relative to the fixed seat 2312 between the deployed position and the folded position.

[0137] Please refer to Figure 15 , the second main swing arm 2362 further includes a second swing arm body 2362b. The second slider 2362a is fixedly connected to one end of the second swing arm body 2362b, and when the rotating shaft mechanism 23 is in the deployed state, at least a part of the second swing arm body 2362b is located outside the fixed seat 2312.

[0138] Please refer to Figure 16 , the second chute K2 includes opposite third arc-shaped wall surfaces K21 and fourth arc-shaped wall surfaces K22. The third arc-shaped wall surface K21 is formed on the second movable plate 2332, and the fourth arc-shaped wall surface K22 is formed on the fixed seat 2312.

[0139] Wherein, the rotation axis of the second main swing arm 2362 rotating relative to the fixed seat 2312 is collinear with the center line of the second chute K2, and the rotation axis of the second main swing arm 2362 rotating relative to the fixed seat 2312 (i.e., the fourth axis) is collinear with the rotation axis of the second movable plate 2332 rotating relative to the fixed seat 2312 (i.e., the second axis).

[0140] Wherein, the specific structure of the second main swing arm 2362 can be the same as that of the first main swing arm 2361, and the structure of the second chute K2 can be the same as that of the first chute K1, which will not be described in detail here.

[0141] In some embodiments, please refer to Figure 15 , the first main swing arm 2361 (i.e., the first rotating member) includes a first stop surface S1, and the first movable plate 2331 includes a second stop surface S2. When the first main swing arm 2361 is in the deployed position, the first stop surface S1 is in abutting engagement with the second stop surface S2 to limit the rotation of the first movable plate 2331 relative to the fixed seat 2312. It should be noted that the "abutting" described in the embodiments of the present application means that two mutually abutting components are in contact and have a certain extrusion force between them.

[0142] Further, please continue to refer to Figure 15 , the second main swing arm 2362 (i.e., the second rotating member) includes a third stop surface S3, and the second movable plate 2332 includes a fourth stop surface S4. When the second main swing arm 2362 is in the deployed position, the third stop surface S3 is in abutting engagement with the fourth stop surface S4 to limit the rotation of the first movable plate 2331 relative to the fixed seat 2312.

[0143] In this way, when the rotating shaft mechanism 23 is in the unfolded state, the first main swing arm 2361 can abut against the first movable plate 2331, and the second main swing arm 2362 can abut against the second movable plate 2332. On the one hand, the first movable plate 2331 and the second movable plate 2332 can be limited respectively by the first main swing arm 2361 and the second main swing arm 2362, which can improve the position stability of the first movable plate 2331 and the second movable plate 2332 when the rotating shaft mechanism 23 is in the folded state. On the other hand, it is beneficial to make the end face of the first end 2331b of the first movable plate 2331 closely fit with the end face of the third end 2332b of the second movable plate 2332 in the unfolded state, which can improve the supporting effect of the first movable plate 2331 and the second movable plate 2332 on the folding screen 10 in the unfolded state.

[0144] Please refer to Figure 16 and combine with Figure 17 , Figure 17 for Figure 10 the enlarged view of the area A in the exploded view shown. A first avoidance hole K3 is provided on the first movable plate 2331, and the first avoidance hole K3 is arranged close to the first end 2331b of the first movable plate 2331. Specifically, the center of the first avoidance hole K3 is closer to the first end 2331b of the first movable plate 2331 than the second end 2331c of the first movable plate 2331. That is, the distance between the center of the first avoidance hole K3 and the first end 2331b is less than the distance between the center of the first avoidance hole K3 and the second end 2331c.

[0145] Please refer to Figure 15 . When the rotating shaft mechanism 23 is in the unfolded state, the end of the first main swing arm 2361 is received in the first avoidance hole K3. Exemplarily, the end of the first slider 2361a away from the first swing arm body 2361b can be received in the first avoidance hole K3.

[0146] Specifically, please refer to Figure 16 . The first avoidance hole K3 penetrates through the first support surface 2331a and the first bottom surface 2331d of the first movable plate 2331. The first avoidance hole K3 includes a first groove wall surface K31, and the first groove wall surface K31 faces the second end 2331c of the first movable plate 2331, and the first groove wall surface K31 is formed as a second stop surface S2. In this way, by providing the first avoidance hole K3, on the one hand, the end of the first main swing arm 2361 can be avoided through the first avoidance hole K3, which can reduce the thickness superposition of the first main swing arm 2361 and the first movable plate 2331 in the folded position, can reduce the thickness of the rotating shaft mechanism 23, and is beneficial to realizing the thin design of the rotating shaft mechanism 23 and the foldable electronic device 100; on the other hand, the second stop surface S2 can be arranged on the groove wall surface of the first avoidance hole K3, which can simplify the structure of the rotating shaft mechanism 23.

[0147] In some embodiments, referring to Figure 16 , a groove wall surface of the first avoidance hole K3 opposite to the first groove wall surface K31 forms a part of the first arc-shaped wall surface K11. In this way, the arc length of the first arc-shaped wall surface K11 can be increased, so that the overlapping amount between the first main swing arm 2361 and the first sliding groove K1 in the folded position can be further increased.

[0148] It can be understood that in other embodiments, the first avoidance hole K3 may also only penetrate the first bottom surface 2331d of the first movable plate 2331 without penetrating the first support surface 2331a. In this case, the groove wall surface of the first movable plate 2331 facing away from the first support surface 2331a can be formed as the second stop surface S2.

[0149] The setting manners of the third stop surface S3 and the fourth stop surface S4 can be designed by referring to the first stop surface S1 and the second stop surface S2 respectively, and will not be elaborated here.

[0150] In some embodiments, during the rotation of the first main swing arm 2361 (i.e., the first rotating member) from the folded position to the unfolded position, the first stop surface S1 can cooperate with the second stop surface S2 to push the first movable plate 2331, so that the first end 2331b of the first movable plate 2331 rotates in a direction away from the fixed seat 2312 relative to the second end 2331c.

[0151] Similarly, during the rotation of the second main swing arm 2362 from the folded position to the unfolded position, the third stop surface S3 can cooperate with the fourth stop surface S4 to push the second movable plate 2332, so that the third end 2332b of the second movable plate 2332 rotates in a direction away from the fixed seat 2312 relative to the fourth end 2332c. In this way, during the process of the rotating shaft mechanism 23 switching from the folded state to the unfolded state, the first movable plate 2331 and the second movable plate 2332 can be pushed to move through the first main swing arm 2361 and the second main swing arm 2362 respectively, so that the first movable plate 2331 and the second movable plate 2332 can rotate to the support position to ensure the effective support of the folded screen 10 in the unfolded state. The structure is simple and the design is ingenious.

[0152] In some embodiments, referring to Figures 18 - 19 , Figure 18 is Figure 8 an enlarged view of the cross-sectional view shown in the B part area, Figure 19 is Figure 9The cross-sectional view shown is an enlarged view of the C region. When the first main swing arm 2361 (i.e., the first rotating member) rotates from the unfolded position to the folded position, the first stop surface S1 is disengaged from the second stop surface S2. When the second main swing arm 2362 rotates from the unfolded position to the folded position, the third stop surface S3 is disengaged from the fourth stop surface S4.

[0153] The rotating shaft mechanism 23 further includes a force applying member 23c, which is used to apply a force to the first movable plate 2331 when the first stop surface S1 is disengaged from the second stop surface S2, so that the first end 2331b of the first movable plate 2331 rotates relative to the second end 2331c in a direction close to the fixed seat 2312, so that the first movable plate 2331 can rotate from the supporting position to the avoidance position. The force applying member 23c can also be used to apply a force to the second movable plate 2332 when the third stop surface S3 is disengaged from the fourth stop surface S4, so that the third end 2332b of the second movable plate 2332 rotates relative to the fourth end 2332c in a direction close to the fixed seat 2312, so that the second movable plate 2332 can rotate from the supporting position to the avoidance position.

[0154] In this way, in the process of switching the hinge mechanism 23 from the unfolded state to the folded state, a force can be applied to the first movable plate 2331 through the force-applying member 23c to drive the first movable plate 2331 to rotate relative to the fixed seat 2312, and a force can be applied to the second movable plate 2332 through the force-applying member 23c to drive the second movable plate 2332 to rotate relative to the fixed seat 2312, so that when the hinge mechanism 23 switches to the folded state, an escape space can be formed between the first movable plate 2331 and the second movable plate 2332 to prevent the hinge mechanism 23 from squeezing the folding screen 10, and when the foldable electronic device 100 falls, the escape space can provide a buffer for the folding screen 10 to prevent the hinge mechanism 23 from squeezing the folding screen 10, thereby improving the reliability of the folding screen 10 and extending the service life of the folding screen 10.

[0155] In some embodiments, see Figures 18 - 19 The force applying member 23c includes a first force applying member 23a and a second force applying member 23b. The first force applying member 23a is used to apply a force to the first movable plate 2331 when the first stop surface S1 is disengaged from the second stop surface S2, so that the first end 2331b of the first movable plate 2331 rotates relative to the second end 2331c toward the direction close to the fixed seat 2312. The second force applying member 23b is used to apply a force to the second movable plate 2332 when the third stop surface S3 is disengaged from the fourth stop surface S4, so that the third end 2332b of the second movable plate 2332 rotates relative to the fourth end 2332c toward the direction close to the fixed seat 2312.

[0156] In some embodiments, both the first force - applying member 23a and the second force - applying member 23b are elastic members. Exemplarily, both the first force - applying member 23a and the second force - applying member 23b are elastic sheets. In this case, the first force - applying member 23a can be connected between the shaft seat 231 and the first movable plate 2331. The second force - applying member 23b can be connected between the shaft seat 231 and the second movable plate 2332.

[0157] In this way, during the process of the first main swing arm 2361 (i.e., the first rotating member) rotating from the folded position to the unfolded position, the first force - applying member 23a can be elastically deformed under the push of the first movable plate 2331, accumulating elastic restoring force. During the process of the first main swing arm 2361 rotating from the unfolded position to the folded position, when the first stop surface S1 is disengaged from the second stop surface S2, the first movable plate 2331 can rotate relative to the fixed seat 2312 under the action of the above - mentioned elastic restoring force, so that the first movable plate 2331 rotates to the avoidance position.

[0158] Similarly, during the process of the second main swing arm 2362 (i.e., the second rotating member) rotating from the folded position to the unfolded position, the second force - applying member 23b can be elastically deformed under the push of the second movable plate 2332, accumulating elastic restoring force. During the process of the second main swing arm 2362 rotating from the unfolded position to the folded position, when the third stop surface S3 is disengaged from the fourth stop surface S4, the second movable plate 2332 can rotate relative to the fixed seat 2312 under the action of the above - mentioned elastic restoring force, so that the second movable plate 2332 rotates to the avoidance position.

[0159] Exemplarily, please refer to Figures 18 - 19 , on the bottom plate 2311a of the shaft cover 2311, there is an installation bump 2311c. On the first bottom surface 2331d of the first movable plate 2331, there is a first bump 2331e. The second movable plate 2332 includes a second bottom surface 2332d facing away from the second support surface 2332a. There is a second bump 2332e on the second bottom surface 2332d. The installation bump 2311c can be arranged between the first bump 2331e and the second bump 2332e, and the first force - applying member 23a and the second force - applying member 23b can be respectively connected to two opposite side surfaces of the installation bump 2311c in the first direction. In this way, it is beneficial to improve the force - application uniformity of the first movable plate 2331 and the second movable plate 2332, thereby being beneficial to improving the symmetry of the avoidance space and ensuring the avoidance effect.

[0160] It can be understood that in other embodiments, the first force - applying member 23a can also be arranged on the side of the first bump 2331e facing away from the second movable plate 2332. Similarly, the second force - applying member 23b can also be arranged on the side of the second bump 2332e facing away from the first movable plate 2331.

[0161] In some embodiments, please continue to refer to Figures 18 - 19 , the first force applying member 23a includes a first elastic arm 23a1 and a second elastic arm 23a2. One end of the second elastic arm 23a2 is fixedly connected to the first elastic arm 23a1, and the other end is spaced apart from the first elastic arm 23a1. The first elastic arm 23a1 can be fixedly connected to the mounting bump 2311c, and the second elastic arm 23a2 can be fixedly connected to the first bump 2331e. Alternatively, in other embodiments, only the first elastic arm 23a1 can be fixedly connected to the mounting bump 2311c, or only the second elastic arm 23a2 can be fixedly connected to the first bump 2331e.

[0162] In this embodiment, the second hinge portion 2352 can form the first bump 2331e. In this way, the second hinge portion 2352 can be reused, and there is no need to additionally provide other bumps, which can simplify the structure of the rotating shaft mechanism 23. Similarly, the fourth hinge portion 2354 can form the second bump 2332e.

[0163] The structure of the second force applying member 23b can be the same as that of the first force applying member 23a. Specifically, please refer to Figure 19 , the second force applying member 23b can include a third elastic arm 23b1 and a fourth elastic arm 23b2. The structures of the third elastic arm 23b1 and the fourth elastic arm are respectively the same as those of the first elastic arm 23a1 and the second elastic arm 23a2. In addition, the manner in which the second force applying member 23b is connected to the second bump 2332e and the mounting bump 2311c can be the same as the manner in which the first force applying member 23a is connected to the first bump 2331e and the mounting bump 2311c, and will not be described in detail herein.

[0164] It can be understood that the structures of the first force applying member 23a and the second force applying member 23b are not limited thereto. In other embodiments, the first force applying member 23a and the second force applying member 23b can also be elastic members such as springs and torsion springs. Alternatively, the first force applying member 23a and the second force applying member 23b may not be elastic members.

[0165] In some embodiments, in order to limit the rotation angle of the first movable plate 2331 relative to the fixed seat 2312 when the rotating shaft mechanism 23 is switched from the unfolded state to the folded state, please refer to Figure 19 , when the rotating shaft mechanism 23 is in the folded state, the first bump 2331e abuts against the inner wall surface of the shaft cover 2311. The structure is simple and easy to implement.

[0166] Similarly, in order to limit the rotation angle of the second movable plate 2332 relative to the fixed seat 2312 when the rotating shaft mechanism 23 is switched from the unfolded state to the folded state, when the rotating shaft mechanism 23 is in the folded state, the second bump 2332e abuts against the inner wall surface of the shaft cover 2311.

[0167] Based on any of the above embodiments, in order to further improve the reliability of the folding screen 10, please refer to Figure 20 , Figure 20 which is Figure 8 a cross-sectional view of the rotating shaft mechanism 23 in an intermediate state as shown. When the rotating shaft mechanism 23 switches from the unfolded state to the folded state, before the rotating shaft mechanism 23 switches to the folded state, an avoidance space can be formed between the first movable plate 2331 and the second movable plate 2332, which can further improve the reliability of the folding screen 10.

[0168] Please go back and refer to Figure 14 , the first secondary swing arm 2363 and the second secondary swing arm 2364 are respectively arranged on opposite sides of the fixed seat 2312, and both the first secondary swing arm 2363 and the second secondary swing arm 2364 can rotate relative to the fixed seat 2312 between the unfolded position and the folded position. Exemplarily, the first secondary swing arm 2363 and the second secondary swing arm 2364 can be arranged on opposite sides of the fixed seat 2312 along the X-axis direction. The first secondary swing arm 2363 and the first main swing arm 2361 can be on the same side of the fixed seat 2312, and the second secondary swing arm 2364 and the second main swing arm 2362 can be on the same side of the fixed seat 2312. That is to say, the first secondary swing arm 2363 and the first main swing arm 2361 are arranged along the Y-axis direction. The second secondary swing arm 2364 and the second main swing arm 2362 are arranged along the Y-axis direction. The first secondary swing arm 2363 is rotatably connected to the fixed seat 2312 by means of a first rotating shaft 2355, and the second secondary swing arm 2364 is rotatably connected to the fixed seat 2312 by means of a second rotating shaft 2356.

[0169] The first connecting member 2371 is used to realize the transmission connection between the first main swing arm 2361 and the first secondary swing arm 2363, and can be used to be fixed to the first housing 21. Exemplarily, the first connecting member 2371 can be fixed to the first middle frame 211 by means of threaded connection, riveting, bonding, etc. In some embodiments, the first connecting member 2371 is rotatably connected to the first main swing arm 2361, and the first connecting member 2371 is slidably connected to the first secondary swing arm 2363.

[0170] The second connecting member 2372 is used to realize the transmission connection between the second main swing arm 2362 and the second secondary swing arm 2364, and can be used to be fixed to the second housing 22. Exemplarily, the second connecting member 2372 can be fixed to the second middle frame 221. In some embodiments, the second connecting member 2372 is rotatably connected to the second main swing arm 2362, and the second connecting member 2372 is slidably connected to the second secondary swing arm 2364.

[0171] In some embodiments, the first rotating door panel 232 is rotatably connected to the first main swing arm 2361 and slidably connected to the first auxiliary swing arm 2363. The second rotating door panel 234 is rotatably connected to the second main swing arm 2362 and slidably connected to the second auxiliary swing arm 2364.

[0172] In this way, when the first housing 21 rotates under an external force, the first connecting member 2371 can rotate with the first housing 21, and then can drive the first main swing arm 2361, the first auxiliary swing arm 2363 and the first rotating door panel 232 to rotate relative to the shaft seat 231, so as to realize the relative rotation between the first housing 21 and the shaft seat 231. When the second housing 22 rotates under an external force, the second connecting member 2372 can rotate with the second housing 22, and then drive the second main swing arm 2362, the second auxiliary swing arm 2364 and the second rotating door panel 234 to rotate relative to the shaft seat 231, so as to realize the relative rotation between the second housing 22 and the shaft seat 231, enabling the foldable electronic device 100 to switch between the unfolded state and the folded state.

[0173] The damping assembly is used to apply a damping force to the first housing 21 and the second housing 22, so that the foldable electronic device 100 can be maintained in the flattened state, the folded state and the intermediate hovering state. In addition, when the foldable electronic device 100 switches between different states, a damping feel can also be provided by the damping assembly.

[0174] Please refer to Figure 21 , Figure 21 For Figure 14 the enlarged view of the three-dimensional view shown in the D part area. The damping assembly includes a first damping assembly 2391 and a second damping assembly 2392. Among them, the first damping assembly 2391 is used to apply damping to the first housing 21, and the second damping assembly 2392 is used to apply damping to the second housing 22.

[0175] Please refer to Figure 21 ,the first damping assembly 2391 includes a first cam 2391a, a second cam 2391b, a third cam 2391c, a fourth cam 2391d and a first spring 2391e. The first cam 2391a and the second cam 2391b are arranged at intervals along the Y-axis direction on the first auxiliary swing arm 2363. The third cam 2391c and the fourth cam 2391d are sleeved on the first rotating shaft 2355, and both the third cam 2391c and the fourth cam 2391d can move along the axial direction of the first rotating shaft 2355. The third cam 2391c cooperates with the first cam 2391a, and the fourth cam 2391d cooperates with the second cam 2391b. The first spring 2391e is sleeved on the first rotating shaft 2355 and is arranged between the third cam 2391c and the fourth cam 2391d.

[0176] When the rotating shaft mechanism 23 is in the unfolded state or the folded state, the first cam 2391a meshes with the third cam 2391c, the second cam 2391b meshes with the fourth cam 2391d, and the first spring 2391e is in a compressed energy storage state. At this time, a squeezing force towards the first cam 2391a can be applied to the third cam 2391c through the first spring 2391e. This squeezing force can cause the first auxiliary swing arm 2363 to generate an unfolding force or a closing force, and further enable the rotating shaft mechanism 23 to be maintained in the unfolded state, the folded state or the intermediate hovering state.

[0177] When the first auxiliary swing arm 2363 rotates, the first cam 2391a and the third cam 2391c rotate relative to each other, and the second cam 2391b and the fourth cam 2391d rotate relative to each other, so that the third cam 2391c and the fourth cam 2391d can move axially towards each other along the first rotating shaft 2355, thereby squeezing the first spring 2391e to change the damping force during the rotation of the first auxiliary swing arm 2363, increasing the damping feel, and improving the use experience of the foldable electronic device 100.

[0178] The structure and working principle of the second damping assembly 2392 can be the same as those of the first damping assembly 2391, and will not be described in detail here.

[0179] Since the moving spaces of the first movable plate 2331 and the second movable plate 2332 in the embodiments of the present application are small and do not occupy the space of the damping assembly, please refer to Figure 21 In this embodiment, an auxiliary spring 2393 can also be designed between the first damping assembly 2391 and the second damping assembly 2392 in the damping assembly to improve the damping effect of the damping assembly.

[0180] The synchronization assembly 238 is disposed between the first auxiliary swing arm 2363 and the second auxiliary swing arm 2364 and is used to realize the synchronous reverse rotation of the first auxiliary swing arm 2363 and the second auxiliary swing arm 2364. Please refer to Figure 21 As shown in the figure, the synchronization assembly 238 includes a first gear 2381, a second gear 2382 and two intermediate gears 2383. Exemplarily, there are two intermediate gears 2383. In other embodiments, the number of intermediate gears 2383 can also be four, six, etc. The first gear 2381 is fixed on the first auxiliary swing arm 2363 and is coaxially arranged with the first rotating shaft 2355. That is, the central axis of the first gear 2381 coincides with the central axis of the first rotating shaft 2355. The second gear 2382 is fixed on the second auxiliary swing arm 2364 and is coaxially arranged with the second rotating shaft 2356.

[0181] Two intermediate gears 2383 mesh with each other, and one of the intermediate gears 2383 meshes with the first gear 2381, and the other intermediate gear 2383 meshes with the second gear 2382. In this way, by providing two intermediate gears 2383, and the two intermediate gears 2383 are meshed between the first gear 2381 and the second gear 2382, the first gear 2381 and the second gear 2382 can be rotated synchronously and in opposite directions, thereby realizing the synchronous reverse rotation of the first auxiliary swing arm 2363 and the second auxiliary swing arm 2364. This structure is simple and easy to implement.

[0182] In some other embodiments, please refer to Figures 22 - 23 , Figure 22 is a perspective view of a partial structure of the rotating shaft mechanism 23 provided in some other embodiments of the present application in the unfolded state, Figure 23 is Figure 22 the enlarged view of the E part area in Figure 7 The difference between the rotating shaft mechanism in this embodiment and the rotating shaft mechanism in the embodiment shown in Figure 7 is that in the embodiment shown in

[0183] Specifically, please refer to Figure 22 and combine with Figure 23 , the first auxiliary swing arm 2363 includes a first stop portion 2363a, the first stop portion 2363a is an arc-shaped block extending along the circumferential direction of the first rotating shaft 2355, and the central angle corresponding to the first stop portion 2363a is less than 180 degrees. That is to say, the first stop portion 2363a is a minor arc. The first stop surface S1 is formed on the first stop portion 2363a. In this way, when the rotating shaft mechanism 23 is in the unfolded state, the first stop surface S1 can be in abutting cooperation with the second stop surface S2, and when the first auxiliary swing arm 2363 rotates relative to the fixed seat 2312, interference between the first stop portion 2363a and other structures of the rotating shaft mechanism 23 can be avoided.

[0184] Please refer to Figure 23 and combine with Figure 24 , Figure 24 is Figure 22 the perspective view of a partial structure of the rotating shaft mechanism 23 shown in the folded state. When the first auxiliary swing arm 2363 rotates from the unfolded position to the folded position, the first stop surface S1 and the second stop surface S2 can be disengaged from the cooperation. Thus, during the rotation of the first auxiliary swing arm 2363 relative to the fixed seat 2312, the abutting cooperation between the first stop surface S1 and the second stop surface S2, and the disengagement cooperation between the first stop surface S1 and the second stop surface S2 can also be realized.

[0185] The third stop surface S3 and the fourth stop surface S4 in this embodiment can be designed with reference to the first stop surface S1 and the second stop surface S2 in this embodiment, or can be designed with reference to Figure 7 the third stop surface S3 and the fourth stop surface S4 in the illustrated embodiment, and will not be described in detail herein.

[0186] Please continue to refer to Figure 22 and Figure 24 , the difference between the rotating shaft mechanism 23 in this embodiment and Figure 7 the rotating shaft mechanism 23 in the illustrated embodiment is also that: Figure 7 the first force applying member 23a and the second force applying member 23b in the rotating shaft mechanism 23 in the illustrated embodiment are separate members. In this embodiment, the first force applying member 23a and the second force applying member 23b are of an integral structure. That is, the force applying member 23c is an integral structural member.

[0187] In this case, please refer to Figure 22 and Figure 24 , the force applying member 23c can be connected between the first movable plate 2331 and the second movable plate 2332. Exemplarily, the first movable plate 2331 can be connected to the force applying member 23c by means of the first bump 2331e, and the second movable plate 2332 can be connected to the force applying member 23c by means of the second bump 2332e.

[0188] In this way, by setting the first force applying member 23a and the second force applying member 23b as an integral structural member, the first movable plate 2331 and the second movable plate 2332 can share a force applying member 23c. Thus, during the process of the rotating shaft mechanism 23 switching from the unfolded state to the folded state, a force can be applied to the first movable plate 2331 and the second movable plate 2332 through the force applying member 23c, driving the first movable plate 2331 to rotate relative to the fixed seat 2312 and driving the second movable plate 2332 to rotate relative to the fixed seat 2312, which can improve the force uniformity of the first movable plate 2331 and the second movable plate 2332 and can realize the synchronous reverse rotation of the first movable plate 2331 and the second movable plate 2332.

[0189] The force applying member 23c in this embodiment can be applied to any embodiment of the present application.

[0190] In still some other embodiments, please refer to Figure 25 , Figure 25 is a partial cross-sectional view of the rotating shaft mechanism 23 provided in still some other embodiments of the present application in the unfolded state. The difference between the rotating shaft mechanism 23 in this embodiment and the rotating shaft mechanism 23 in any of the above embodiments is that the force applying member 23c in this embodiment is a magnet assembly. Among them, the force applying member 23c in this embodiment can be applied to any embodiment of the present application.

[0191] Specifically, please refer to Figure 25 , the force applying member 23c includes a first magnet 23c1 and a second magnet 23c2. The first magnet 23c1 can be disposed on the first movable plate 2331, and the second magnet 23c2 can be disposed on the shaft seat 231. Specifically, the first magnet 23c1 can be disposed on the shaft cover 2311 or the fixing seat 2312. The first magnet 23c1 can be a magnet or a magnetic steel. The second magnet 23c2 can also be a magnet or a magnetic steel.

[0192] Please refer to Figure 25 , when the rotating shaft mechanism 23 is in the unfolded state, the second magnet 23c2 is disposed opposite to the first magnet 23c1, and the magnetic pole of the end of the second magnet 23c2 close to the first magnet 23c1 is the same as the magnetic pole of the end of the first magnet 23c1 close to the second magnet 23c2. That is to say, the magnetization direction of the second magnet 23c2 is opposite to the magnetization direction of the first magnet 23c1. Wherein, the magnetization direction described in the embodiments of the present application refers to the direction from the south pole to the north pole of the magnet, that is, the direction from the S pole to the N pole.

[0193] Exemplarily, please refer to Figure 25 , the magnetic pole of the end of the first magnet 23c1 close to the second magnet 23c2 can be the N pole, and the magnetic pole of the end of the second magnet 23c2 close to the first magnet 23c1 is also the N pole. In this way, the first movable plate 2331 can be driven to rotate relative to the fixing seat 2312 by the magnetic repulsion force between the first magnet 23c1 and the second magnet 23c2. The structure is simple and ingenious in design. Moreover, compared with the elastic member, the service life of the magnet is longer, which is beneficial to extending the service life of the rotating shaft mechanism 23 and the foldable electronic device.

[0194] In some embodiments, when the rotating shaft mechanism 23 is in the unfolded state, the first magnet 23c1 and the second magnet 23c2 can be arranged in the first direction. It can be understood that in other embodiments, when the rotating shaft mechanism 23 is in the unfolded state, the first magnet 23c1 and the second magnet 23c2 can be arranged in the Z-axis direction.

[0195] Please refer to Figure 25 , in some embodiments, the first magnet 23c1 can be disposed on the first protrusion 2331e. The first magnet 23c1 can be fixed to the first protrusion 2331e by bonding, clamping, etc. It can be understood that in other embodiments, the first magnet 23c1 can also be directly disposed on the first bottom surface 2331d of the first movable plate 2331. The second magnet 23c2 can be fixed to the shaft cover 2311 or the fixing seat 2312 by bonding, clamping, screw connection, etc.

[0196] Based on the above embodiments, please refer to Figure 25, the force applying member 23c further includes a third magnet 23c3, and the third magnet 23c3 is disposed on the second movable plate 2332. When the rotating shaft mechanism 23 is in the unfolded state, the third magnet 23c3 is disposed opposite to the second magnet 23c2, and the magnetic pole of the end of the third magnet 23c3 close to the second magnet 23c2 is the same as the magnetic pole of the end of the second magnet 23c2 close to the third magnet 23c3. That is, when the rotating shaft mechanism 23 is in the unfolded state, the magnetization direction of the third magnet 23c3 is opposite to the magnetization direction of the second magnet 23c2. Exemplarily, the magnetic pole of the end of the third magnet 23c3 close to the second magnet 23c2 may be an S pole, and the magnetic pole of the end of the second magnet 23c2 close to the third magnet 23c3 is also an S pole.

[0197] In this way, the second movable plate 2332 can be driven to rotate relative to the fixed seat 2312 by the magnetic repulsion force between the second magnet 23c2 and the third magnet 23c3, and the structure is simple and the design is ingenious.

[0198] The connection manner between the third magnet 23c3 and the second movable plate 2332 can be designed with reference to the connection manner between the first magnet 23c1 and the first movable plate 2331, and will not be described in detail herein.

[0199] In still other embodiments, please refer to Figure 26 , Figure 26 is a cross-sectional view of the rotating shaft mechanism 23 provided in still other embodiments of the present application in the unfolded state. The difference between the rotating shaft mechanism 23 in this embodiment and the rotating shaft mechanism 23 in the embodiment shown in Figure 25 is that the force applying member 23c in this embodiment includes a first magnet 23c1 and a second magnet 23c2, and the first magnet 23c1 is disposed on the first movable plate 2331, and the second magnet 23c2 is disposed on the second movable plate 2332.

[0200] The force applying member 23c in this embodiment can be applied to any embodiment of the present application.

[0201] Specifically, when the rotating shaft mechanism 23 is in the unfolded state, the second magnet 23c2 is disposed opposite to the first magnet 23c1, and the magnetic pole of the end of the second magnet 23c2 close to the first magnet 23c1 is the same as the magnetic pole of the end of the first magnet 23c1 close to the second magnet 23c2. Exemplarily, the first magnet 23c1 may be disposed on the first convex block 2331e. The second magnet 23c2 may be disposed on the second convex block 2332e.

[0202] In this way, the first movable plate 2331 and the second movable plate 2332 can be simultaneously driven by the first magnet 23c1 and the second magnet 23c2 to rotate in opposite directions relative to the fixed seat 2312, which can improve the force uniformity of the first movable plate 2331 and the second movable plate 2332, reduce the number of components of the rotating shaft mechanism 23, simplify the structure of the rotating shaft mechanism 23, and save the occupied space of the force applying member 23c.

[0203] In the rotating shaft mechanism 23 in the embodiment of the present application, during the entire opening and closing process of the rotating shaft mechanism 23, the first movable plate 2331 and the second movable plate 2332 only need to rotate a very small angle to meet the avoidance requirements, occupy a small movable space in the rotating shaft mechanism 23, and can avoid the above-mentioned movable space from occupying the design space of structures such as the damping component in the rotating shaft mechanism 23, which is beneficial to improving the damping feel and hovering function of the rotating shaft mechanism 23 and the foldable electronic device 100. At the same time, when the rotating shaft mechanism 23 is in the folded state, the overlapping amount between the first main swing arm 2361 and the first chute K1 can be increased. The structure of such a rotating shaft mechanism 23 is simple, convenient to assemble, and has good reliability.

[0204] In the description of this specification, specific features, structures, materials, or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0205] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A rotating shaft mechanism, characterized in that, Comprising: Fixed seat; A first movable plate and a second movable plate arranged in a first direction, the first movable plate and the second movable plate are rotatably connected to the fixed seat, the first movable plate includes a first support surface and opposite first and second ends; the second movable plate includes a second support surface and opposite third and fourth ends; In the first direction, the first end is always located between the second end and the second movable plate; the third end is always located between the fourth end and the first movable plate; The rotating shaft mechanism has an unfolded state and a folded state. In the unfolded state, both the first support surface and the second support surface face away from the fixed seat. During the process of the rotating shaft mechanism switching from the unfolded state to the folded state, the first end can rotate relative to the second end towards the direction close to the fixed seat, and the third end can rotate relative to the fourth end towards the direction close to the fixed seat, so as to form an avoidance space between the first support surface and the second support surface.

2. The shaft mechanism according to claim 1, wherein When the rotating shaft mechanism is in the folded state, the included angle between the first support surface and the second support surface is greater than or equal to 140 degrees and less than or equal to 170 degrees.

3. The shaft mechanism according to claim 1 or 2, characterized in that, A first hinge part is provided on the fixed seat, and a second hinge part is provided on the first movable plate. One of the first hinge part and the second hinge part includes a first circular arc groove, and the other is a first circular arc rib. The first circular arc rib is slidably matched with the first circular arc groove, so that the first movable plate can rotate relative to the fixed seat around a first axis.

4. The shaft mechanism according to claim 3, wherein The first movable plate includes a first bottom surface facing away from the first support surface, and the second hinge part is arranged on the first bottom surface; The second hinge part includes the first circular arc groove, and the first circular arc groove is a circular arc groove arched towards the direction away from the first bottom surface; or the second hinge part is a first circular arc rib, and the first circular arc rib is a circular arc rib arched towards the direction away from the first bottom surface.

5. The rotating shaft mechanism according to any one of claims 1-4, characterized in that, The rotating shaft mechanism further includes a first rotating member, and the first rotating member can rotate relative to the fixed seat between an unfolded position and a folded position, so that the rotating shaft mechanism can rotate between the unfolded state and the folded state.

6. The shaft mechanism according to claim 5, characterized in that The first rotating member includes a first slider. A first sliding groove is defined between the first movable plate and the fixed seat. The first sliding groove is circular arc-shaped, and the first slider is slidably matched with the first sliding groove, so that the first rotating member can rotate relative to the fixed seat around a second axis, wherein the second axis is collinear with the first axis of the rotation of the first movable plate relative to the fixed seat.

7. The shaft mechanism according to claim 5, wherein The first rotating member is rotationally connected to the fixed seat by means of a first rotating shaft.

8. The rotating shaft mechanism according to any one of claims 5-7, characterized in that, The first rotating member includes a first stop surface, and the first movable plate includes a second stop surface. When the first rotating member is in the unfolded position, the first stop surface abuts against the second stop surface to limit the rotation of the first movable plate relative to the fixed seat.

9. The shaft mechanism according to claim 8, characterized in that, During the rotation of the first rotating member from the folded position to the unfolded position, the first stopping surface can cooperate with the second stopping surface to push the first movable plate, so that the first end of the first movable plate rotates in a direction away from the fixed seat relative to the second end.

10. The rotating shaft mechanism according to claim 8 or 9, characterized in that, During the rotation of the first rotating member from the unfolded position to the folded position, the first stopping surface is disengaged from the second stopping surface; The rotating shaft mechanism further includes: A shaft seat, the shaft seat includes the fixed seat and a shaft cover, and the fixed seat is fixedly connected to the shaft cover; A force applying member, the force applying member is used to apply a force to the first movable plate when the first stopping surface is disengaged from the second stopping surface, so that the first end of the first movable plate rotates in a direction close to the fixed seat relative to the second end.

11. The rotating shaft mechanism according to claim 10, wherein The force applying member includes a first force applying member, the first force applying member is an elastic member, the first force applying member is connected between the shaft seat and the first movable plate, and during the rotation of the first rotating member from the folded position to the unfolded position, the first force applying member is elastically deformed under the push of the first movable plate and stores an elastic restoring force; During the rotation of the first rotating member from the unfolded position to the folded position, the first movable plate rotates relative to the fixed seat under the action of the elastic restoring force.

12. The rotating shaft mechanism according to claim 10, characterized in that, The force applying member includes: A first magnet, the first magnet is arranged on the first movable plate, A second magnet, the second magnet is arranged on the shaft seat or the second movable plate; When the rotating shaft mechanism is in the unfolded state, the second magnet is arranged opposite to the first magnet, and the magnetic pole of the end of the second magnet close to the first magnet is the same as the magnetic pole of the end of the first magnet close to the second magnet.

13. The shaft mechanism according to any one of claims 1-12, characterized in that, Includes: A shaft seat, the shaft seat includes the fixed seat and a shaft cover, and the fixed seat is fixedly connected to the shaft cover; A first convex block is arranged on the first movable plate. When the rotating shaft mechanism is in the folded state, the first convex block abuts against the inner wall surface of the shaft cover.

14. The rotating shaft mechanism according to any one of claims 1-13, characterized in that, Includes: A first rotating door panel and a second rotating door panel, the first rotating door panel and the second rotating door panel are respectively arranged on opposite sides of the fixed seat, and both can rotate relative to the fixed seat between the unfolded position and the folded position; The first rotating door panel has a first bearing surface, the second rotating door panel has a second bearing surface. When the rotating shaft mechanism is in the unfolded state, the first bearing surface, the first supporting surface, the second supporting surface, and the second bearing surface are coplanar.

15. The shaft mechanism according to any one of claims 1-14, characterized in that When the rotating shaft mechanism is in the unfolded state, the first supporting surface and the second supporting surface are coplanar.

16. The rotating shaft mechanism according to any one of claims 1-15, characterized in that, When the rotating shaft mechanism is in the unfolded state, the end surface of the first end faces the second movable plate, the end surface of the third end faces the first movable plate, and the end surface of the third end is attached to the end surface of the first end.

17. A foldable electronic device, characterized in that, Includes: A housing assembly, the housing assembly includes a first housing, a second housing and a rotating shaft mechanism, the rotating shaft mechanism is connected between the first housing and the second housing, and the rotating shaft mechanism is the rotating shaft mechanism according to any one of claims 1-16; A folding screen, the folding screen is supported by the housing assembly.

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