A rotating shaft mechanism, a housing assembly, and a foldable electronic device

Abstract

The present application provides a hinge mechanism, a housing assembly and a foldable electronic device, and relates to the technical field of foldable electronic devices. It is used to solve the problem of low service life of elastic components in a damping mechanism. The above-mentioned hinge mechanism includes a first component, a second component and an elastic component, and the second component is hinged to one side of the first component. The elastic component is connected between the first component and the second component, and the elastic component is used to provide a damping force for the relative rotation of the second component and the first component. The elastic component includes a first elastic member and a second elastic member arranged and connected along the damping force direction, and the elastic coefficient of the first elastic member is different from the elastic coefficient of the second elastic member.

Description

Technical Field

[0001] The present application relates to the technical field of foldable electronic devices, and in particular to a hinge mechanism, a housing assembly, and a foldable electronic device. Background Art

[0002] At present, in order to solve the problems of large size and inconvenience in carrying of terminal devices, foldable electronic devices have emerged. Foldable electronic devices include a damping mechanism, which generates a damping force through elastic deformation of elastic components in the damping mechanism to improve the feel of the foldable electronic device when opening and closing. However, due to the influence of the processing and assembly of the elastic components, cracks are easily formed on the surface of the elastic components during repeated opening and closing of the foldable electronic device, which greatly reduces the service life of the elastic components. Summary of the invention

[0003] The embodiments of the present application provide a hinge mechanism, a housing assembly, and a foldable electronic device, which are used to solve the problem of low service life of elastic components in a damping mechanism.

[0004] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0005] In a first aspect, the present application provides a rotating shaft mechanism, which includes a first component, a second component and an elastic component, wherein the second component is hinged to one side of the first component. The elastic component is connected between the first component and the second component, and the elastic component is used to provide a damping force for the relative rotation of the second component and the first component, and the elastic component includes a first elastic member and a second elastic member arranged and connected along the damping force direction, and the elastic coefficient of the first elastic member is different from the elastic coefficient of the second elastic member.

[0006] The deformation of the first elastic member and the deformation of the second elastic member jointly provide the damping force required by the rotating shaft mechanism, and the elastic coefficient of the first elastic member is different from the elastic coefficient of the second elastic member, wherein the elastic member with a larger elastic coefficient provides a buffering effect for the other elastic member, that is, when the elastic component is squeezed, the elastic member with a larger elastic coefficient avoids a certain displacement for the deformation of the elastic member with a smaller elastic coefficient, thereby avoiding the problem of cracks on the surface of the elastic member after the elastic member with a smaller elastic coefficient is deformed too much, thereby ensuring the reliability and durability of the elastic component, and thus improving the service life of the elastic component.

[0007] In a possible implementation of the first aspect, the elastic coefficient of the first elastic member is smaller than the elastic coefficient of the second elastic member, when the elastic component is in a compressed state, the stress on the first elastic member is F1, and when the first elastic member is at an elastic limit, the stress on the first elastic member is F2, and F1 is smaller than F2. By setting the second elastic member so that the elastic deformation of the first elastic member avoids a certain displacement space, the problem of cracks and breakages during the use of the elastic component is avoided, thereby improving the service life of the damping component.

[0008] In a possible implementation of the first aspect, when the elastic component is in a compressed state, the length of the elastic deformation of the first elastic member is L1, the length of the maximum elastic deformation that the first elastic member can bear is L2, and L1 is less than or equal to 0.9L2. The load-bearing capacity and safety performance of the first elastic member and the second elastic member in the elastic component are balanced, the elastic component can meet the damping force required by the shaft mechanism, and the elastic deformation of the elastic component to generate the damping force is within the maximum elastic deformation of the elastic component, thereby avoiding the problem of cracks and fractures in the use of the elastic component, thereby improving the service life of the damping component.

[0009] In a possible implementation of the first aspect, the second component rotates relative to the first component around the first axis, and the first elastic component extends along a curve in the direction of the first axis. In this way, when the shaft mechanism rotates, the elastic component is squeezed, and the first elastic component is elastically deformed after being squeezed. Since the first elastic component extends along the curve, the elastic deformation of the first elastic component can be achieved by changing the shape and direction of the curve extension. In this way, the first elastic component has a simple structure, is easy to install, and has a low manufacturing and processing cost.

[0010] In a possible implementation of the first aspect, the first elastic member extends along a curve in the direction of the damping force. In this way, when the shaft mechanism rotates, the elastic component is squeezed, and the first elastic member is elastically deformed after being squeezed. Since the first elastic member extends along the curve, the elastic deformation of the first elastic member can be achieved by changing the shape and direction of the curve extension. In this way, the first elastic member has a simple structure, is easy to install, and has a low manufacturing and processing cost.

[0011] In a possible implementation manner of the first aspect, the first elastic member includes a plurality of first connecting segments arranged in parallel, two adjacent first connecting segments are connected by a second connecting segment, and a first angle is formed between the first connecting segment and the second connecting segment.

[0012] In a possible implementation of the first aspect, the second component rotates relative to the first component around the first axis, and the thickness direction of the first elastic component is perpendicular to the first axis and perpendicular to the direction of the damping force. The first elastic component includes a first surface and a second surface that are arranged opposite to each other in the thickness direction, and the first elastic component also has at least one first through hole, and the first through hole passes through the first surface and the second surface. In this way, the first elastic component has a simple structure, is easy to install, has a low manufacturing and processing cost, and the way in which the first elastic component undergoes elastic deformation is simpler, avoiding the problem of the first elastic component being skewed or arched during elastic deformation.

[0013] In a possible implementation of the first aspect, the second elastic member extends along a curve in the direction of the first axis. In this way, when the shaft mechanism rotates, the elastic component is squeezed, and the second elastic member is elastically deformed after being squeezed. Since the second elastic member extends along the curve, the elastic deformation of the second elastic member can be achieved by changing the shape and direction of the curve extension. In this way, the second elastic member has a simple structure, is easy to install, and has a low manufacturing and processing cost.

[0014] In a possible implementation of the first aspect, the second elastic member extends along a curve in the direction of the damping force. In this way, when the shaft mechanism rotates, the elastic component is squeezed, and the second elastic member is elastically deformed after being squeezed. Since the second elastic member extends along the curve, the elastic deformation of the second elastic member can be achieved by changing the shape and direction of the curve extension. In this way, the second elastic member has a simple structure, is easy to install, and has a low manufacturing and processing cost.

[0015] In a possible implementation of the first aspect, the second elastic member includes a plurality of third connecting segments arranged in parallel, two adjacent third connecting segments are connected by a fourth connecting segment, a second angle is formed between the third connecting segment and the fourth connecting segment, and the second angle is smaller than the first angle. In this way, the second elastic member has a simple structure, is easy to install, has a low manufacturing cost, and the elastic deformation of the second elastic member is simpler, thereby avoiding the problem of the second elastic member being skewed or arched during elastic deformation.

[0016] In a possible implementation of the first aspect, the second component rotates relative to the first component around the first axis, and the thickness direction of the second elastic component is perpendicular to the first axis and perpendicular to the direction of the damping force. The second elastic component includes a third surface and a fourth surface that are arranged opposite to each other in the thickness direction, and the second elastic component also has at least one second through hole, and the second through hole passes through the third surface and the fourth surface. When the elastic component is squeezed, the second elastic component is elastically deformed by the squeeze, and the first through hole can be used as a deformation gap of the second elastic component, that is, when the second elastic component is squeezed and deformed, the elastic deformation is mainly achieved through the change in the shape of the first through hole. In this way, the structure of the second elastic component is simple and easy to install, and the deformation trend of the second elastic component can be controlled when it is squeezed.

[0017] In a possible implementation of the first aspect, when there are multiple second through holes, multiple second through hole arrays are arranged on the second elastic member. In this way, when the elastic component is squeezed, multiple first through holes can be used as deformation gaps of the second elastic member, that is, when the elastic component is squeezed, the second elastic member realizes its own elastic deformation through the deformation of multiple first through holes, and the deformation form of the second elastic member is simpler, and the second elastic member can set the deformability of the second elastic member by setting the number of first through holes. Specifically, when the size of the first through hole is fixed, the more the number of the first through holes, the stronger the deformability of the second elastic member, and the fewer the number of the first through holes, the weaker the deformability of the second elastic member. Alternatively, the second elastic member can also set the deformability of the second elastic member by setting the size of the first through hole. Specifically, when the number of the first through holes is fixed, the larger the first through hole, the stronger the deformability of the second elastic member, and the smaller the first through hole, the weaker the deformability of the second elastic member.

[0018] In a possible implementation of the first aspect, the first elastic member also includes a first side and a second side connected between the first surface and the second surface and arranged opposite to each other, the first side having a first notch, and the first notch runs through the third surface and the fourth surface. The second side has a second notch, the first notch and the second notch are symmetrically arranged relative to the geometric center of the second elastic member, and the second notch runs through the third surface and the fourth surface. In this way, when the elastic component is subjected to an extrusion force, in the direction of the damping force, the first side has the first notch and the second side has the second notch, and the elastic deformation of the second elastic member can also occur at the first notch and the second notch, thereby realizing the compression of the second elastic member in the direction of the damping force. The setting of the first notch and the second notch facilitates setting the deformation trend of the second elastic member, that is, the tendency of the second elastic member to be compressed along the direction of the damping force.

[0019] In a possible implementation of the first aspect, the first notch has a first opening and a first groove bottom wall, and in a direction from the first opening to the first groove bottom wall, the groove side walls of the first notch extend in a direction away from each other. The second notch has a second opening and a second groove bottom wall, and in a direction from the second opening to the second groove bottom wall, the groove side walls of the second notch extend in a direction away from each other. The provision of the first notch and the second notch facilitates setting a deformation tendency of the second elastic member, that is, a tendency of the second elastic member to be compressible along the direction of the damping force.

[0020] In a possible implementation of the first aspect, the elastic modulus of the first elastic member is smaller than the elastic modulus of the second elastic member. In this way, the shape structure of the first elastic member and the shape structure of the second elastic member can be designed to be the same, and during the production process, the same mold can be used for the processing and manufacturing of the first elastic member and the processing and manufacturing of the second elastic member, which is beneficial to the production and processing of the first elastic member and the second elastic member.

[0021] In a possible implementation of the first aspect, the first component is a center beam, a mating portion is provided on the center beam, the second component is a slider, the slider includes a connected slider body and a hinge portion, the hinge portion is hinged to the mating portion, the hinge mechanism also includes a door panel, the door panel and the slider are on the same side of the center beam, the door panel and the slider body are slidably matched, the door panel has a first frame facing away from the center beam, one end of the elastic component abuts against a side of the slider body close to the center beam, and the other end of the elastic component abuts against the first frame.

[0022] The deformation of the first elastic member and the deformation of the second elastic member jointly provide the damping force required by the rotating shaft mechanism, and the elastic coefficient of the first elastic member is different from the elastic coefficient of the second elastic member, wherein the elastic member with a larger elastic coefficient provides a buffering effect for the other elastic member, that is, when the elastic component is squeezed, the elastic member with a larger elastic coefficient avoids a certain displacement for the deformation of the elastic member with a smaller elastic coefficient, thereby avoiding the problem of cracks on the surface of the elastic member after the elastic member with a smaller elastic coefficient is deformed too much, thereby ensuring the reliability and durability of the elastic component, and thus improving the service life of the elastic component.

[0023] In a possible implementation of the first aspect, an arc block is formed on the center beam, and the arc block has a concave-convex surface area, and the concave-convex surface area includes a convex portion and a concave portion. The rotating shaft mechanism also includes a support frame, which is slidably connected to the slider body, and the support frame rotates synchronously with the slider. The support frame abuts against the concave-convex surface area, and the elastic component abuts against the side of the support frame away from the arc block, wherein the elastic component has a first compression state and a second compression state, and the elastic deformation of the elastic component in the first compression state is less than the elastic deformation of the elastic component in the second compression state; when the elastic component is in the first compression state, the support frame abuts against the concave portion; when the elastic component is in the second compression state, the support frame abuts against the convex portion.

[0024] When the elastic component is squeezed, the elastic part with a larger elastic coefficient makes a certain displacement to avoid the deformation of the elastic part with a smaller elastic coefficient, thereby avoiding the problem of cracks on the surface of the elastic part after the elastic part with a smaller elastic coefficient is deformed too much, ensuring the reliability and durability of the elastic component, and thus improving the service life of the elastic component.

[0025] In a possible implementation manner of the first aspect, a second accommodating groove is provided on the sliding block, the supporting frame is slidably disposed in the second accommodating groove, and at least a portion of the elastic component is located in the second accommodating groove.

[0026] In a possible implementation of the first aspect, the elastic coefficient of the first elastic member is smaller than the elastic coefficient of the second elastic member, and the first elastic member is located on a side of the second elastic member adjacent to the center beam. When the elastic component is squeezed, the elastic member with a larger elastic coefficient makes a certain displacement to avoid deformation of the elastic member with a smaller elastic coefficient, thereby avoiding the problem of cracks on the surface of the elastic member after the elastic member with a smaller elastic coefficient deforms too much, thereby ensuring the reliability and durability of the elastic component, and further increasing the service life of the elastic component.

[0027] In a possible implementation of the first aspect, the first elastic member is located in the second accommodating groove, the door panel has a first frame facing away from the center beam, at least part of the second elastic member is located between the slider and the first frame, the frame of the slider facing away from the center beam has an avoidance gap, and the first elastic member and the second elastic member abut against each other at the avoidance gap.

[0028] In a possible implementation of the first aspect, the support frame includes a bracket and a rolling part, the bracket is slidably arranged in the accommodating groove, the rolling part is rotatably arranged on a side of the bracket close to the middle beam, and is rotatably connected with the bracket, when the bracket and the slider rotate synchronously, the rolling part abuts against the arc block and rolls along the arc block, and the rolling axis of the rolling part is parallel to the rotation axis of the slider.

[0029] In a possible implementation of the first aspect, the first component is a base, the second component is a swing arm, the rotating shaft mechanism also includes a rotating shaft, a first cam and a second cam, the swing arm is rotatably connected to the base via the rotating shaft, the first cam and the second cam are both sleeved on the rotating shaft, the first cam slides along the axial direction of the rotating shaft, the second cam is fixed relative to the swing arm, and the elastic component is arranged on the rotating shaft, and during the rotation of the swing arm relative to the base, the first cam and the second cam abut against each other and rotate relatively, so that the first cam slides along the axial direction of the rotating shaft and squeezes the elastic component.

[0030] In a second aspect, the present application further provides a pivot mechanism, which includes a center beam, a door panel, a slider, a support frame and an elastic component, wherein the door panel is rotatably connected to the center beam. The slider is arranged between the door panel and the center beam, the first end of the slider is rotatably connected to the center beam, the second end of the slider is slidably connected to the door panel, the rotation axis of the slider is perpendicular to the sliding direction of the slider, and the door panel and the slider rotate synchronously. The support frame is slidably connected to the slider, and the support frame and the slider rotate synchronously. The elastic component is connected between the center beam and the door panel, and the elastic component is used to provide a damping force for the relative rotation between the door panel and the center beam, the door panel has a first frame facing away from the center beam, one end of the elastic component abuts against the support frame, and the other end of the elastic component abuts against the first frame.

[0031] In a possible implementation manner of the second aspect, the elastic component includes a first elastic member and a second elastic member, and the first elastic member and the second elastic member are independent of each other and abut against each other.

[0032] In a possible implementation manner of the second aspect, an elastic coefficient of the first elastic member is the same as an elastic coefficient of the second elastic member.

[0033] In a third aspect, the present application further provides a shell assembly, which includes a first shell, a second shell and a rotating shaft mechanism, wherein the rotating shaft mechanism is the rotating shaft mechanism described above, and the rotating shaft mechanism is connected between the first shell and the second shell.

[0034] The shell assembly provided in the third aspect of the present application includes a rotating shaft mechanism according to any of the above technical solutions, and therefore can solve the same technical problems and achieve the same technical effects.

[0035] In a fourth aspect, the present application further provides a foldable electronic device, the foldable electronic device comprising a housing assembly and a foldable screen, the housing assembly being the housing assembly of the above content. The foldable screen comprises a first display area, a second display area and a third display area, the third display area is connected between the first display area and the second display area, the first display area is arranged on the first housing, the second display area is arranged on the second housing, and the third display area is arranged on the hinge mechanism.

[0036] The folding screen terminal provided in the fourth aspect of the present application, because it includes a shell assembly of any of the above technical solutions, can solve the same technical problems and achieve the same technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A three-dimensional diagram of a foldable electronic device provided by an embodiment of the present application;

[0038] Figure 2 A front view of a foldable electronic device provided in an embodiment of the present application;

[0039] Figure 3A front view of a foldable electronic device in a folded position provided by an embodiment of the present application;

[0040] Figure 4 A three-dimensional diagram of a rotating shaft mechanism provided in some embodiments of the present application;

[0041] Figure 5 Another stereoscopic view of the rotating shaft mechanism provided in some embodiments of the present application;

[0042] Figure 6 for Figure 5 A schematic diagram of the structure of the rotating shaft mechanism when the A area is in a folded state;

[0043] Figure 7 for Figure 5 An enlarged view of the structure of region A of the rotating shaft mechanism shown;

[0044] Figure 8 for Figure 7 An exploded view of the shaft mechanism shown;

[0045] Fig. 9 An exploded view of a first damping assembly provided in an embodiment of the present application;

[0046] Fig.10 for Fig. 9 Assembly drawings of the damping components provided;

[0047] Fig.11 A schematic diagram of the structure of a rotating shaft mechanism provided in some other embodiments of the present application;

[0048] Fig.12 A schematic diagram of the structure of a rotating shaft mechanism provided in some embodiments of the present application;

[0049] Fig.13 A schematic diagram of the structure of a rotating shaft mechanism provided in some further embodiments of the present application;

[0050] Fig.14 A schematic diagram of the structure of a rotating shaft mechanism provided in some further embodiments of the present application;

[0051] Fig.15 A schematic diagram of the structure of a rotating shaft mechanism provided in some further embodiments of the present application;

[0052] Fig.16 for Fig.13 An exploded view of the first sliding block and the support frame in the rotating shaft mechanism;

[0053] Fig.17 for Fig.16 A schematic diagram of the structure after the first sliding block and the supporting frame are assembled;

[0054] Fig.18A three-dimensional diagram of a first elastic member provided in some embodiments of the present application;

[0055] Fig.19 A schematic structural diagram of a first elastic member provided in some embodiments of the present application;

[0056] Fig. 20 A schematic diagram of the structure of a second elastic member provided in some embodiments of the present application;

[0057] Fig.21 for Fig.18 The first elastic member and Fig. 20 A schematic diagram of the structure in which the second elastic member is installed in the rotating shaft mechanism;

[0058] Fig. 22 A schematic structural diagram of a first elastic member provided in some other embodiments of the present application;

[0059] Fig.23 for Fig. 22 A schematic diagram of the structure in which the first elastic member is installed on the rotating shaft mechanism;

[0060] Fig.24 A three-dimensional diagram of a second elastic member provided in some further embodiments of the present application;

[0061] Fig.25 for Fig.23 A schematic structural diagram of the second elastic member shown;

[0062] Fig.26 for Fig.25 A schematic diagram of the structure in which the second elastic member is installed in the rotating shaft mechanism;

[0063] Fig. 27 A schematic diagram of stress and strain of an elastic component when it is squeezed provided in some embodiments of the present application;

[0064] Fig.28 A schematic diagram of stress and strain of an elastic component when it is squeezed provided in some other embodiments of the present application;

[0065] Fig.29 It is a structural schematic diagram when the rotating shaft mechanism is in an unfolded state;

[0066] Fig.30 for Fig.29 The structure diagram of the rotating shaft mechanism shown is when it starts to rotate from the unfolded position to the folded position;

[0067] Fig.31 A structural diagram of a rotating shaft mechanism provided in an embodiment of the present application when the rolling portion abuts against the edge of the middle beam;

[0068] Fig.32A structural diagram of a rotating shaft mechanism provided in an embodiment of the present application when the rolling portion and the concave-convex surface area are completely separated;

[0069] Fig.33 A structural diagram of a hinge mechanism of another foldable electronic device provided in an embodiment of the present application;

[0070] Fig.34 for Fig.33 A structural diagram of a first cam and a second cam of a rotating shaft mechanism meshing with each other is provided;

[0071] Fig.35 for Fig.34 A structural diagram is provided when the convex points of the first cam and the second cam abut against each other.

[0072] Reference numerals:

[0073] 01. Foldable electronic devices;

[0074] 10. Folding screen; 11. First part; 12. Second part; 13. Third part;

[0075] 20. Shell assembly; 21. First shell; 22. Second shell; 23. Rotating shaft mechanism;

[0076] 100, first component; 110, middle beam; 110a, beam body; 110b, arc groove; 110c, cover plate;

[0077] 111, first door panel; 111a, first receiving groove; 112, second door panel;

[0078] 113, first slider; 113a, second accommodating groove; 113b, slider body; 113c, hinged portion; 113d, support frame; 113e, bracket; 113f, abutting portion; 113g, rolling portion; 113h, limiting portion; 113i, avoidance gap;

[0079] 114, third door panel; 115, fourth door panel; 116, second sliding block;

[0080] 200, second component; 120, base; 210, door panel; 211, receiving groove; 220, swing arm;

[0081] 300, damping assembly; 301, first damping assembly; 302, first damping part; 302a, concave-convex surface area; 302b, arc block; 303, second damping part; 330, support frame; 331, bracket; 331a, abutment part; 331b, limit part; 332, rolling part; 304, elastic member; 310, elastic assembly; 311, first elastic member; 311a, first connecting section; 311b, second connecting section;

[0082] 312, second elastic member; 312a, third connecting section; 312b, fourth connecting section; 312c, first through hole; 312d, first surface; 312e, second surface; 312f, first notch; 312g, second notch; 313, first side edge; 314, second side edge; 320, second damping assembly; 500, rotating shaft; M1, first fitting surface; M2, second fitting surface; M3, third fitting surface. DETAILED DESCRIPTION

[0083] In the embodiments of the present application, the terms "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0084] In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0085] In the description of the embodiments of the present application, the term "at least one" refers to one or more, and "plurality" refers to two or more. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0086] In the description of the embodiments of the present application, the term "and / or" refers to and covers any and all possible combinations of one or more of the associated listed items. The term "and / or" is a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in the present application generally indicates that the associated objects before and after are in an "or" relationship.

[0087] 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 "connected" should be understood in a broad sense. For example, "connected" can be detachably connected or non-detachably connected; it can be directly connected or indirectly connected through an intermediate medium. Among them, "fixed connection" means that the two are connected to each other and the relative position relationship after connection remains unchanged.

[0088] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. The directional terms mentioned in the embodiments of the present application, such as "inside", "outside", "upper", "lower", "left", "right", etc., are only referenced to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0089] In the description of the embodiments of the present application, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0090] In the embodiment of the present application, the term "transmission connection" means that among the two connected components, the movement of one component can be transmitted to the other component, and the connection method between the two components includes but is not limited to at least one of the connection methods such as rotation connection, sliding connection, gear meshing transmission connection, sprocket transmission connection, and cam mechanism transmission connection.

[0091] An embodiment of the present application provides a foldable electronic device, which may include a foldable screen, and various foldable electronic devices that can change the unfolding or folding form of the foldable screen and itself. Under different usage requirements, the foldable electronic device can be unfolded to an unfolded state, or folded to a folded state, or in an intermediate state between the unfolded state and the folded state. In other words, the foldable electronic device has at least two states, namely, an unfolded state and a folded state. In some cases, a third state may be further included, namely, an intermediate state between the unfolded state and the folded state. It can be understood that the intermediate state does not have only a unique state, and may be any one or more states in which the foldable electronic device is in the unfolded state and the folded state.

[0092] The foldable electronic device may be a portable electronic device or other types of electronic devices. For example, the foldable electronic device may be a foldable screen mobile phone, a laptop computer, etc. Among them, the foldable screen mobile phone may be a mobile phone with an external foldable display screen, or a mobile phone with an internal foldable display screen. This embodiment is first described by taking the foldable electronic device as a mobile phone with an external foldable display screen as an example.

[0093] The foldable electronic device is approximately in the shape of a rectangular flat plate in the unfolded state. In order to facilitate the description of the embodiments below, an XYZ coordinate system is established for the foldable electronic device in the unfolded state, and the length direction of the foldable electronic device is defined as the X-axis direction, the width direction of the foldable electronic device is defined as the Y-axis direction, and the thickness direction of the foldable electronic device is defined as the Z-axis direction. It can be understood that the coordinate system setting of the foldable electronic device can be flexibly set according to actual needs, and no specific limitation is made here. In some other embodiments, the shape of the foldable electronic device can also be a square flat plate, a circular flat plate, an elliptical flat plate, etc.

[0094] Specifically, see Figure 1 , Figure 1 A three-dimensional diagram of a foldable electronic device 01 provided in an embodiment of the present application. The foldable electronic device 01 may include a foldable screen 10 and a housing assembly 20. It is understood that the figure only schematically shows some components included in the foldable electronic device 01, and the actual shape, actual size, actual position and actual structure of these components are not limited by the figure.

[0095] The folding screen 10 includes a first portion 11, a second portion 12 and a third portion 13, and the third portion 13 is disposed between the first portion 11 and the second portion 12. When the folding screen 10 is folded, the third portion 13 is bent, and the first portion 11 and the second portion 12 are disposed away from each other. At least the third portion 13 of the folding screen 10 is made of a flexible material, and the first portion 11 and the second portion 12 can be made of a flexible material, or can be made of a rigid material, or can be made of a part of a flexible material and a part of a rigid material. Therefore, this application does not make any special limitation on this.

[0096] The folding screen 10 is supported on the housing assembly 20. Figure 2 , Figure 2 This is a front view of a foldable electronic device 01 provided in an embodiment of the present application. The shell assembly 20 may include a first shell 21, a second shell 22, and a hinge mechanism 23, wherein the hinge mechanism 23 is connected between the first shell 21 and the second shell 22. The first shell 21 has a first fitting surface M1, and the first part 11 of the folding screen 10 is supported and fitted on the first fitting surface M1. The second shell 22 has a second fitting surface M2, and the second part 12 of the folding screen 10 is supported and fitted on the second fitting surface M2. The hinge mechanism 23 has a third fitting surface M3, and the third part 13 of the folding screen 10 is supported and fitted on the third fitting surface M3. The first shell 21 and the second shell 22 are rotatably connected by the hinge mechanism 23, so that the foldable electronic device 01 can rotate between the unfolded position and the folded position.

[0097] When the foldable electronic device 01 is in the unfolded position, please continue to refer to Figure 1 and Figure 2 , Figure 1 and Figure 2 The foldable electronic devices shown are all in an unfolded state. The first laminating surface M1, the second laminating surface M2, and the third laminating surface M3 are in the same plane, so that the foldable screen 10 is fully unfolded and the flatness of the foldable screen 10 can be ensured. In this state, the foldable electronic device 01 can be displayed on a large screen, which can bring a better user experience. For example, when a user uses the foldable electronic device 01 to watch a movie, the foldable electronic device 01 can be unfolded and watched on a large screen, thereby obtaining a better viewing experience.

[0098] When the Folding Screen 10 terminal is in the folded position, please refer to Figure 3 , Figure 3A front view of a foldable electronic device 01 in a folded position provided in an embodiment of the present application. The first portion 11 and the second portion 12 of the foldable screen 10 are opposed to each other, that is, the first portion 11 and the second portion 12 are facing in opposite directions, respectively, the third portion 13 of the foldable screen 10 is in a bent state, and the shell assembly 20 is located between the first portion 11 and the second portion 12. At this time, the foldable electronic device 01 only uses the first portion 11 or the second portion 12 of the foldable screen 10 to display images, that is, the user can use the small screen for one-handed operation. For example, when a user takes public transportation, since the foldable electronic device 01 can only be held with one hand, the foldable electronic device 01 can be folded at this time to reduce the width of the foldable electronic device 01, so as to perform one-handed operation, which is conducive to further improving the user experience.

[0099] In this way, the use state of the foldable electronic device 01 can be increased to be suitable for different use scenarios. The user can freely select the use state of the terminal according to different use scenarios, which is conducive to enabling the user to obtain a better use experience.

[0100] The foldable electronic device 100 further includes a hinge mechanism 23, which is used to realize the rotation between the second housing 22 and the first housing 21, so as to support the folding screen 10 to fold between the unfolded state and the folded state. Figure 4 and Figure 5 , Figure 4 A three-dimensional diagram of the rotating shaft mechanism 23 provided in some embodiments of the present application; Figure 5 Another stereoscopic view of the shaft mechanism 23 provided in some embodiments of the present application. Figure 4 and Figure 5 The rotating shaft mechanism 23 is shown in an unfolded state.

[0101] The shaft mechanism 23 includes a center beam 110, a first door panel 111, a second door panel 112, a first slider 113, a third door panel 114, a fourth door panel 115 and a second slider 116. It is understood that Figure 4 and Figure 5 Only some components of 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 the figure. For example, in other embodiments, the rotating shaft mechanism 23 may also not include the second door panel 112, the fourth door panel 115, etc.

[0102] The middle beam 110 is used to realize the assembly of other components in the hinge mechanism 23, and is used to support a part of the third display area of ​​the folding screen 10. Specifically, the middle beam 110 is in the shape of a long strip. The length direction of the middle beam 110 is parallel to the Y-axis direction, the width direction of the middle beam 110 is parallel to the X-axis direction, and the thickness direction of the middle beam 110 is parallel to the Z-axis direction. The surface of the middle beam 110 facing the folding screen 10 forms at least a part of the third fitting surface, which is used to support a part of the third display area.

[0103] The first door panel 111 is located on one side of the center beam 110, and can rotate between an unfolded position and a folded position relative to the center beam 110. The first door panel 111 is in the shape of a long strip, and the length direction of the first door panel 111 is parallel to the Y-axis direction. The rotation axis of the first door panel 111 is parallel to the Y-axis. The hinge mechanism 23 can be fixedly connected to the first shell 21 with the aid of the first door panel 111. Exemplarily, the first door panel 111 can be fixedly connected to the first shell 21 by bonding, clamping, welding, screw connection, etc. The surface of the first door panel 111 facing the folding screen 10 forms at least a portion of the third fitting surface, which is used to support a portion of the third display screen.

[0104] The second door panel 112 is located on the other side of the center beam 110, and can rotate between the unfolded position and the folded position relative to the center beam 110. The second door panel 112 is in the shape of a long strip, and the length direction of the second door panel 112 is parallel to the Y-axis direction. The rotation axis of the second door panel 112 is parallel to the Y-axis. Specifically, the first door panel 111 and the second door panel 112 can be relatively arranged on both sides of the width direction (that is, the X-axis direction) of the center beam 110. The hinge mechanism 23 can be fixedly connected to the second shell 22 with the aid of the second door panel 112. Exemplarily, the second door panel 112 can be fixedly connected to the second shell 22 by bonding, clamping, welding, screw connection, etc. The surface of the second door panel 112 facing the folding screen 10 forms at least a portion of the third fitting surface, which is used to support a portion of the third display screen.

[0105] Please continue reading Figure 4 and Figure 5 The third door panel 114 is located between the first door panel 111 and the center beam 110, and the third door panel 114 is rotatably connected to the first door panel 111, and the third door panel 114 is rotatably connected to the center beam 110. The fourth door panel 115 is located between the second door panel 112 and the center beam 110, and the fourth door panel 115 is rotatably connected to the second door panel 112, and the fourth door panel 115 is rotatably connected to the center beam 110. Figure 6 , Figure 6 for Figure 5A schematic diagram of the structure of the rotating shaft mechanism 23 when the A area is in the folded state. When the rotating shaft mechanism 23 is folded between the unfolded state and the folded state, the angle at which the third door panel 114 and the fourth door panel 115 rotate relative to the center beam 110 is a first angle α1, and the angle at which the first door panel 111 and the second door panel 112 rotate relative to the center beam 110 is a second angle α2, and the first angle α1 is smaller than the second angle α2.

[0106] Exemplarily, the first angle α1 is 45 degrees, and the second angle α2 is 90 degrees. In this way, the hinge mechanism 23 can be folded into a U-shape, and the third display area supported on the hinge mechanism 23 can be folded into a U-shape, which can reduce the stress and pulling of the folding screen 10 during the folding process. When the hinge mechanism 23 is in a folded state, the shell assembly 20 including the hinge mechanism 23 and the foldable device including the shell assembly 20 are also in a folded state, and the angle between the first shell 21 and the second shell 22, and the angle between the first display area and the second display area are also approximately 360 degrees.

[0107] In this embodiment, the number of the third door panel 114 and the fourth door panel 115 are both one, and it is understood that in other embodiments, the number of the third door panel 114 and the fourth door panel 115 may also be multiple. Alternatively, in other embodiments, the rotating shaft mechanism 23 may also not include the third door panel 114 and the fourth door panel 115.

[0108] Please refer to Figure 5 , the first slider 113 is rotatably connected to one side of the middle beam 110 and is slidably connected to the first door panel 111. Specifically, the first slider 113 is located on the side of the first door panel 111 away from the folding screen 10. The second slider 116 is rotatably connected to the other side of the middle beam 110 and is slidably connected to the second door panel 112. Specifically, the first slider 113 and the second slider 116 are arranged oppositely on both sides of the width direction of the middle beam 110.

[0109] The specific structure of the first slider 113 and the connection relationship between the first slider 113 and the center beam 110 and the first door panel 111 are introduced in detail below. Since the specific structure of the second slider 116 is the same as the specific structure of the first slider 113, the connection relationship between the second slider 116 and the center beam 110 and the second door panel 112 is the same as the connection relationship between the first slider 113 and the center beam 110 and the first door panel 111. Therefore, the first slider 113 is taken as an example for introduction below.

[0110] See also Figure 7 and Figure 8 , Figure 7 for Figure 5 An enlarged structural view of region A of the rotating shaft mechanism 23 is shown; Figure 8 for Figure 7In order to facilitate the description of the connection relationship between the middle beam 110, the first slider 113 and the first door panel 111, Figure 7 and Figure 8 The rotating shaft mechanism 23 in the figure is a structural schematic diagram in which the third door panel 114 and the fourth door panel 115 are omitted.

[0111] The middle beam 110 may include a beam body 110 a and a cover plate 110 c . The beam body 110 a is provided with a matching portion for matching with the first slider 113 . The matching portion may be an arc groove 110 b , and the axis of the arc groove 110 b is parallel to the length direction of the middle beam 110 .

[0112] The first slider 113 includes a slider body 113b and a hinged portion 113c, and the hinged portion 113c is hinged in the arc groove 110b. The hinged portion 113c extends into the arc groove 110b so that the slider body 113b can slide along the circumference of the arc groove 110b, that is, the slider can rotate around the axis of the arc groove 110b. The cover plate 110c is buckled on the beam body 110a, and the cover plate 110c is fixedly connected to the beam body 110a, for example, by screw fixation or clamping. The slider is connected to the middle beam 110, and the slider can only rotate along the arc groove 110b, which is conducive to improving the reliability of the overall structure.

[0113] When the foldable electronic device 01 is in the unfolded position, the hinge 113c is completely in the arc groove 110b; when the foldable electronic device 01 rotates from the unfolded position to the folded position, the hinge 113c slides along the arc groove 110b; when the foldable electronic device 01 rotates to the folded position, a portion of the hinge 113c slides out of the arc groove 110b. At this time, since a portion of the hinge 113c slides out of the arc groove 110b, the length of the portion of the slider outside the arc groove 110b increases.

[0114] In this way, when the foldable electronic device 01 rotates from the unfolded position to the folded position, the first housing 21 and the corresponding first door panel 111 will move away from the center beam 110. Since the folding screen 10 is fixed on the first housing 21, the first housing 21 and the first part 11 of the folding screen 10 will move relative to each other, thereby causing the folding screen 10 to be damaged and fail.

[0115] Therefore, in order to avoid damage to the folding screen 10, the first slider 113 is slidably connected to the first door panel 111. During the rotation of the foldable electronic device 01 from the unfolded position to the folded position, the first slider 113 slides relative to the corresponding first door panel 111 toward the door panel, that is, the first door panel 111 slides relative to the corresponding first slider 113 toward the center beam 110, thereby ensuring that during the rotation of the foldable electronic device 01, the first shell 21 and the corresponding first door panel 111 as well as the second shell 22 and the corresponding second door panel 112 will not move away from the center beam 110, so as to avoid relative movement between the first shell 21 and the second shell 22 and the first part 11 and the second part 12 of the folding screen 10, so as to protect the folding screen 10 intact.

[0116] For details, please continue to see Figure 7 and Figure 8 , a first receiving groove 111a may be provided on the first door panel 111, a slider body 113b is located in the first receiving groove 111a, the sliding body is slidably connected to the first receiving groove 111a, and the sliding direction of the slider body 113b is perpendicular to the rotation axis of the slider body 113b. Under this structure, when the hinge 113c slides out of the arc groove 110b on the middle beam 110, the slider body 113b can slide into the first receiving groove 111a on the door panel, thereby ensuring that when the foldable electronic device 01 is in the folded position and the unfolded position, the distance between the first door panel 111 and the middle beam 110 remains unchanged, that is, the distance between the first shell 21 and the second shell 22 and the middle beam 110 remains unchanged, so as to avoid relative movement between the first shell 21 and the first part 11 of the folding screen 10, and between the second shell 22 and the second part 12 of the folding screen 10.

[0117] In addition, in order to improve the feel of the foldable electronic device 01 when rotating between the folded position and the unfolded position, the hinge mechanism 23 may further include a damping component 300, which is disposed between the first component 100 and the second component 200. The damping component 300 is applied to the above Figure 8 In the rotating shaft mechanism 23 shown, the first component 100 is a center beam 110, and the second component 200 is a slider.

[0118] Please continue reading Figure 8The damping assembly 300 includes a first damping assembly 301 and a second damping assembly 320. The first damping assembly 301 is used to provide a damping force for the rotation of the first slider 113 relative to the middle beam 110, and the second damping assembly 320 is used to provide a damping force for the rotation of the second slider 116 relative to the middle beam 110. Since the first damping assembly 301 and the second damping assembly 320 have the same structure, the connection relationship between the first damping assembly 301 and the first slider 113 is the same as the connection relationship between the second damping assembly 320 and the second slider 116. The structure of the first damping assembly 301 and the connection relationship between the first damping assembly 301 and the first slider 113 are described in detail below.

[0119] See also Fig. 9 and Fig.10 , Fig. 9 An exploded view of the first damping assembly 301 provided in an embodiment of the present application, Fig.10 for Fig. 9 An assembly diagram of the damping assembly 300 is provided.

[0120] The first damping assembly 301 may include a first damping portion 302, a second damping portion 303 and an elastic member 304. The first damping portion 302 and the first component 100 (i.e. Figure 8 The second damping part 303 is connected to the second component 200 (i.e. Figure 8 The second damping part 303 is connected to the first damping part 302, and the second damping part 303 can rotate synchronously with the second component 200, and the second damping part 303 can also abut against the first damping part 302. During the relative rotation of the second component 200 and the first component 100, the second damping part 303 and the first damping part 302 move relative to each other and abut against each other, and the elastic member 304 is squeezed, so that the elastic force of the elastic member 304 generates a damping force between the second damping part 303 and the first damping part 302, thereby providing a damping force for the rotation of the second component 200 relative to the first component 100.

[0121] Please continue reading Fig. 9 and Fig.10, the first damping part 302 may be an arc block 302b, and a concave-convex surface area 302a is formed on the surface of the arc block 302b facing the first slider 113. The second damping part 303 is a support frame 113d, and the support frame 113d is connected to the first slider 113 and rotates synchronously, and the elastic member 304 abuts against the side of the support frame 113d away from the middle beam 110. In the process of synchronous rotation of the support frame 113d and the first slider 113, the support frame 113d can abut against the concave-convex surface area 302a and slide along the concave-convex surface area 302a, so that the support frame 113d and the first slider 113 slide relative to each other and squeeze the elastic member 304. Specifically, the elastic member 304 has a first compression state and a second compression state, and the elastic deformation of the elastic member 304 in the first compression state is less than the elastic deformation of the elastic member 304 in the second compression state. When the elastic member 304 is in the first compression state, the support frame 113d abuts against the concave portion of the concave-convex surface area 302a; when the elastic member 304 is in the second compression state, the support frame 113d abuts against the convex portion of the concave-convex surface area 302a.

[0122] In this way, when the foldable electronic device 01 rotates between the unfolded position and the folded position, the support frame 113d abuts against the concave-convex surface area 302a and slides along the concave-convex surface area 302a, so that the support frame 113d slides relative to the first slider 113, thereby squeezing the elastic member 304, causing the elastic member 304 to be compressed and generate elastic force. Therefore, the elastic member 304 applies a reaction force to the support frame 113d, so that a damping force is formed between the support frame 113d and the concave-convex surface area 302a. When the user rotates the foldable electronic device 01, it can play a damping role to improve the user's use feel.

[0123] Please continue reading Fig. 9 and Fig.10 Exemplarily, the elastic member 304 may be a spring, that is, the spring abuts against the side of the support frame 113d away from the middle beam 110. When the first slider 113 and the middle beam 110 rotate relative to each other, the support frame 113d abuts against the concave-convex surface area 302a and slides along the concave-convex surface area 302a. At the same time, the support frame 113d and the first slider 113 slide relative to each other and squeeze the spring, so that the elastic force generated by the compression of the spring acts on the support frame 113d, thereby forming a damping force between the support frame 113d and the concave-convex surface area 302a.

[0124] The elastic member 304 needs to meet the damping force requirements of the foldable electronic device 01, that is, during the unfolding and folding process of the foldable electronic device 01, the elastic member 304 needs to provide the damping force required by the foldable electronic device 01, and when the foldable electronic device 01 is in the unfolded state, the elastic member 304 needs to provide sufficient damping force to ensure the unfolding angle and unfolding retention force of the foldable electronic device 01.

[0125] The elastic member 304 is usually a single-stage spring or a spring group. However, due to the influence of the processing and assembly of the elastic member 304, the actual elastic range of the elastic member 304 is different from the design elastic range of the elastic member 304. When the actual elastic range of the elastic member 304 is smaller than the design elastic range of the elastic member 304, the elastic member 304 is prone to surface cracks or even breakage during repeated compression and rebound, which affects the service life of the elastic member 304. The "elastic range" mentioned here refers to the ability of a material to recover its original shape after being deformed by an external force and when the external force is removed, which is called elasticity. The range in which the material can completely recover to its original shape is called the elastic range of the material. If the elastic range of the material is exceeded, the material will undergo plastic deformation.

[0126] The processing influence mentioned above means that when the elastic member 304 is a spring, the spring is usually manufactured by wire processing. During the wire processing, micro cracks are inevitably generated on the surface of the spring. As a result, the actual elastic range of the spring is smaller than the designed elastic range. After the elastic member 304 is repeatedly used, cracks are easily generated on the surface of the elastic member 304, resulting in a reduction in the service life of the elastic member 304.

[0127] The above-mentioned assembly influence means that the ideal stress deformation of the elastic member 304 is the compression deformation of the elastic member 304 in the stress direction, and the ideal stress direction is the direction perpendicular to the support frame 113d in which the extrusion force is applied to the support frame 113d, that is, Fig. 9 In the direction of the X-axis in the drawing, the elastic member 304 is squeezed and deformed in the direction of the X-axis. However, due to the assembly accuracy of the elastic member 304, the actual force applied to the elastic member 304 during use is skewed compared to the ideal force applied. The elastic member 304 is also skewed and arched after being stressed. As a result, the actual force applied to the elastic member 304 is greater than the designed force, which is likely to exceed the elastic range of the elastic member 304. After the elastic member 304 is repeatedly used, cracks are likely to form on the surface of the elastic member 304, resulting in a reduced service life of the elastic member 304.

[0128] In order to solve the problem that the elastic part 304 has a short service life and is easily damaged, the present application also provides a rotating shaft mechanism 23. The difference between the rotating shaft mechanism 23 and the above-mentioned rotating shaft mechanism 23 lies in the damping component 300. The other components of the rotating shaft mechanism 23 are the same as the rotating shaft mechanism 23 of the above-mentioned embodiment, and will not be repeated here. The damping component 300 of this embodiment is introduced in detail below.

[0129] See also Fig.11 , Fig.11Schematic diagram of the structure of the rotating shaft mechanism 23 provided in some other embodiments of the present application. The damping assembly 300 of this embodiment includes two elastic assemblies 310, one of which is arranged between the middle beam 110 and the first slider 113, and the other elastic assemblies 310 is arranged between the middle beam 110 and the second slider 116. The specific structures of the two elastic assemblies 310 are the same, and the connection mode of one elastic assembly 310 with the first slider 113 and the middle beam 110 is the same as the connection mode of the other elastic assembly 310 with the second slider 116 and the middle beam 110. The connection mode of one elastic assembly 310 with the first slider 113 and the middle beam 110 is taken as an example for description.

[0130] The elastic component 310 is connected between the first component 100 and the second component 200, that is, the elastic component 310 is connected between the above-mentioned middle beam 110 and the first slider 113. The elastic component 310 includes a first elastic member 311 and a second elastic member 312 arranged and connected along the damping force direction, and the elastic coefficient of the first elastic member 311 is different from the elastic coefficient of the second elastic member 312.

[0131] The “damping force direction” here refers to the direction of the damping force provided by the elastic component 310 to the relative movement between the center beam 110 and the first slider 113. Fig.11 In the specific example shown, the direction is consistent with the arrangement direction of the middle beam 110 and the first slider 113. Specifically, when the foldable electronic device 01 is in the unfolded state, the direction of the damping force is the direction of the X axis, and when the foldable electronic device 01 is in the folded state, the direction of the damping force is the direction of the Y axis. It is worth noting that the direction of the damping force is not fixed, but changes with the rotation of the first slider 113 relative to the middle beam 110.

[0132] The "elastic coefficient" here refers to the ratio of stress to strain on an object, that is, the object's ability to deform when subjected to external force. The larger the elastic coefficient of an object, the smaller the deformation of the object when subjected to the same stress, that is, the smaller the object's ability to deform; the smaller the elastic coefficient of an object, the greater the deformation of the object when subjected to the same stress, that is, the greater the object's ability to deform.

[0133] Since the elastic component 310 is mainly subjected to the squeezing force when applied to the above-mentioned rotating shaft mechanism 23, the "elastic coefficient" mentioned in this article mainly refers to the compressibility of an object, that is, the ability of an object to be compressed after being subjected to the squeezing force. The larger the elastic coefficient of an object, the smaller the deformation of the object that can be compressed; the smaller the elastic coefficient of an object, the larger the deformation of the object that can be compressed.

[0134] The elastic coefficient of the first elastic member 311 is different from the elastic coefficient of the second elastic member 312, that is, the deformability of the first elastic member 311 is different from the deformability of the second elastic member 312. The difference between the elastic coefficient of the first elastic member 311 and the elastic coefficient of the second elastic member 312 may include the following situations: first, the elastic coefficient of the first elastic member 311 is greater than the elastic coefficient of the second elastic member 312; second, the elastic coefficient of the first elastic member 311 is less than the elastic coefficient of the second elastic member 312. The following takes the case where the elastic coefficient of the first elastic member 311 is less than the elastic coefficient of the second elastic member 312 as an example for explanation, and the setting position, connection relationship and specific structure of the first elastic member 311 and the second elastic member 312 are described in detail.

[0135] Please continue reading Fig.11 , the elastic component 310 is arranged between the center beam 110 and the first door panel 111, wherein the first elastic member 311 is closer to the center beam 110 than the second elastic member 312. That is, in the direction of the damping force, the center beam 110, the first elastic member 311 and the second elastic member 312 are arranged in sequence. When the first slider 113 rotates relative to the center beam 110, the elastic component 310 is subjected to an extrusion force, and the first elastic member 311 and the second elastic member 312 are subjected to an extrusion force of the same magnitude. The first elastic member 311 and the second elastic member 312 are elastically deformed after being extruded to generate the damping force required when the rotating shaft mechanism 23 rotates. It is worth noting that the damping component 300 provided in this embodiment includes at least two elastic members 304, that is, the damping component 300 includes at least the first elastic member 311 and the second elastic member 312. In this way, the damping force required by the rotating shaft mechanism 23 can be provided by the first elastic member 311 and the second elastic member 312 . Specifically, the damping force required by the rotating shaft mechanism 23 is generated by the deformation of the first elastic member 311 and the deformation of the second elastic member 312 .

[0136] Compared with the embodiment using a single-stage elastic member 304, the present embodiment uses the deformation of the first elastic member 311 and the deformation of the second elastic member 312 to generate the damping force, which can avoid the problem of cracks on the surface of the elastic member 304 after the single-stage elastic member 304 is squeezed and deformed to a large extent. Specifically, when the damping force required by the rotating shaft mechanism 23 is fixed, the damping force is generated by the deformation of the single-stage elastic member 304, and the deformation of the single-stage elastic member 304 needs to reach a certain degree to meet the damping force required by the rotating shaft mechanism 23. The damping force is generated by the deformation of the first elastic member 311 and the deformation of the second elastic member 312, which can reduce the deformation degree of the first elastic member 311 and the deformation degree of the second elastic member 312. In addition, the elastic coefficient of the first elastic member 311 is smaller than the elastic coefficient of the second elastic member 312, and the elastic coefficient of the first elastic member 311 can be the same as the elastic coefficient of the single-stage elastic member 304 in the above embodiment. When the elastic component 310 is squeezed, the deformation of the first elastic member 311 is greater than that of the second elastic member 312 . The provision of the second elastic member 312 can prevent the deformation of the first elastic member 311 from exceeding the elastic limit.

[0137] Exemplarily, the damping force required by the rotating shaft mechanism 23 is X, and the damping force X of the rotating shaft mechanism 23 is provided by the deformation of the first elastic member 311 and the deformation of the second elastic member 312. Since the elastic coefficient of the first elastic member 311 is smaller than the elastic coefficient of the second elastic member 312, when the elastic component 310 is squeezed, the rebound force generated by the first elastic member 311 being squeezed and deformed can be 0.8X, and the rebound force generated by the second elastic member 312 being squeezed and deformed can be 0.2X. In this way, the sum of the damping force 0.8X generated by the deformation of the first elastic member 311 and the damping force 0.2X generated by the deformation of the second elastic member 312 reaches the damping force X, so as to meet the damping force required by the rotating shaft mechanism 23. In the embodiment of the single-stage elastic member 304, the rebound force generated by the elastic deformation of the single-stage elastic member 304 must meet the requirement of X, and the elastic deformation of the single-stage elastic member 304 must reach a certain degree to meet the requirement of the damping force, so the surface of the single-stage elastic member 304 is more prone to cracks, and the service life will be reduced accordingly.

[0138] As described above, the elastic limit of the first elastic member 311 can be consistent with the elastic limit of the single-stage elastic member 304 shown in the above embodiment, and when the rotating shaft mechanism 23 rotates, the first elastic member 311 provides a damping force for the rotation of the rotating shaft mechanism 23. However, the second elastic member 312 can provide a certain buffering effect for the deformation of the first elastic member 311, that is, the second elastic member 312 can avoid a certain displacement for the deformation of the first elastic member 311.

[0139] It can also be understood that the setting of the second elastic member 312 can provide a certain safety factor for the use of the first elastic member 311. The safety factor of the first elastic member 311 refers to the ratio of the load of the first elastic member 311 in actual use to the load-bearing capacity of the first elastic member 311. When the safety factor of the first elastic member 311 is less than 1, it means that the load-bearing capacity of the first elastic member 311 is greater than the actual load in use, and it has good safety. When the safety factor of the first elastic member 311 is greater than 1, it means that the load-bearing capacity of the first elastic member 311 is less than the actual load in use, and there is a risk of fracture. When the load-bearing capacity of the first elastic member 311 is fixed, the setting of the second elastic member 312 allows the first elastic member 311 to share part of the stress, thereby reducing the load of the first elastic member 311 in actual use. In this way, during the process of repeated loading and unloading of the first elastic member 311, the stress on the first elastic member 311 is always kept within the load-bearing capacity of the first elastic member 311, that is, the first elastic member 311 is always kept within the fatigue limit.

[0140] Therefore, the deformation of the first elastic member 311 will not exceed its own elastic limit, thereby avoiding the problem of cracks on the surface of the first elastic member 311 during use, and the risk of breakage of the first elastic member 311, thereby improving the reliability and durability of the elastic component 310, further extending the service life of the elastic component 310, and enhancing the user experience.

[0141] The "elastic limit" in the above content means that when an object is subjected to an external force to a certain limit, if the external force is removed, its deformation disappears and returns to its original state. The elastic limit refers to the ability of an object to resist the external force to this limit. If the external force is continued to be used to deform the object, the object will undergo plastic deformation until it breaks. It can also be understood that the elastic limit of the first elastic member 311 can also be understood as the elastic range of the first elastic member 311, that is, the range of elastic deformation of the first elastic member 311 after being subjected to an external force. When the first elastic member 311 is subjected to an external force and undergoes plastic deformation, it exceeds the elastic range of the first elastic member 311.

[0142] The above embodiment is described by taking the arrangement of the middle beam 110, the first elastic member 311 and the second elastic member 312 along the direction of the damping force as an example. In some other embodiments, please refer to Fig.12 , Fig.12This is a schematic diagram of the structure of the rotating shaft mechanism 23 provided in some embodiments of the present application. The middle beam 110, the second elastic member 312 and the first elastic member 311 may also be arranged along the direction of the damping force, that is, the second elastic member 312 with a larger elastic coefficient is arranged closer to the middle beam 110, and the first elastic member 311 with a smaller elastic coefficient is connected to the side of the second elastic member 312 away from the middle beam 110. In this way, when the rotating shaft mechanism 23 rotates, the elastic component 310 is squeezed, the first elastic member 311 is compressed and deformed, and the second elastic member 312 is compressed and deformed to generate damping force, and the deformation of the first elastic member 311 is greater than that of the second elastic member 312. In this way, the effect of improving the life of the elastic component 310 can also be achieved, thereby improving the reliability and durability of the damping component 300.

[0143] To sum up, the deformation of the first elastic member 311 and the deformation of the second elastic member 312 jointly provide the damping force required by the rotating shaft mechanism 23, and the elastic coefficient of the first elastic member 311 is different from the elastic coefficient of the second elastic member 312, wherein the elastic member 304 with a larger elastic coefficient provides a buffering effect for the other elastic member 304, that is, when the elastic component 310 is squeezed, the elastic member 304 with a larger elastic coefficient avoids a certain displacement for the deformation of the elastic member 304 with a smaller elastic coefficient, thereby avoiding the problem of cracks on the surface of the elastic member 304 after the elastic member 304 with a smaller elastic coefficient is deformed too much, thereby ensuring the reliability and durability of the elastic component 310, and thereby improving the service life of the elastic component 310.

[0144] In order to balance the load-bearing capacity and safety performance of the first elastic member 311 and the second elastic member 312 in the elastic component 310, the safety factor of the first elastic member 311 can be set to be less than or equal to 0.9. The safety factor of the first elastic member 311 refers to the ratio of the load when the first elastic member 311 is actually used to the load-bearing capacity of the first elastic member 311.

[0145] It can be understood that when the elastic component 310 is in the folded state, the unfolded state, and any position between the folded state and the unfolded state of the rotating shaft mechanism 23, the elastic deformation of the first elastic member 311 is L1, where the deformation refers to the difference between the length of the first elastic member 311 in the free state and the length of the first elastic member 311 under elastic deformation. The maximum elastic deformation that the first elastic member 311 can bear is L2, where the deformation refers to the difference between the length of the first elastic member 311 in the free state and the length of the first elastic member 311 when it is at the elastic limit, and L1 is always less than or equal to 0.9L2.

[0146] In this way, the elastic limit of the first elastic member 311 can be consistent with the elastic limit of the single-stage elastic member 304 in the above embodiment, and due to the setting of the second elastic member 312, the problem of cracks on the surface of the first elastic member 311 when in use is avoided. In this embodiment, the service life of the elastic component 310 is improved by adding the second elastic member 312, and the service life of the elastic component 310 is not extended only by improving the structural performance of the first elastic member 311 itself. If the service life of the elastic component 310 is achieved by improving the structural performance of the first elastic member 311, the production cost of the first elastic member 311 will be greatly increased, and only by increasing the elastic limit of the first elastic member 311, the structural complexity, volume, and elastic deformation stroke of the first elastic member 311 will change accordingly, which will also increase the difficulty of assembling the elastic component 310. Therefore, by setting the second elastic member 312 to allow the elastic deformation of the first elastic member 311 to avoid a certain displacement space, the problem of cracks and breaks in the use of the elastic component 310 is avoided, thereby improving the service life of the damping component 300.

[0147] The specific positions of the first elastic member 311 and the second elastic member 312 are described in detail below, taking an example in which the first elastic member 311 is closer to the center beam 110 than the second elastic member 312 .

[0148] See also Fig.13 , Fig.13 A schematic diagram of the structure of the rotating shaft mechanism 23 provided for some other embodiments of the present application. The middle beam 110, the first elastic member 311 and the second elastic member 312 are arranged in sequence along the direction of the damping force, and the first elastic member 311 and the second elastic member 312 are connected. The first elastic member 311 and the second elastic member 312 can be fixedly connected, for example, the first elastic member 311 and the second elastic member 312 can be connected by welding, bonding, etc., or they can be formed into an integral structure during the processing stage, that is, the elastic component 310 is an integral structure, and the integral structure includes two parts with unequal elastic coefficients, namely, the first elastic member 311 and the second elastic member 312. The first elastic member 311 and the second elastic member 312 can also be movably connected, that is, the first elastic member 311 and the second elastic member 312 can be separated, for example, the first elastic member 311 and the second elastic member 312 are connected by direct abutment, and this embodiment and the following embodiments are described by taking the direct abutment of the first elastic member 311 and the second elastic member 312 as an example.

[0149] At least part of the first elastic member 311 is located in the support frame 113d, and at least part of the second elastic member 312 is located in the first door panel 111. The arrangement positions of the first elastic member 311 and the second elastic member 312 may include the following situations: First, the entire first elastic member 311 is located in the support frame 113d, and the entire second elastic member 312 is located in the first door panel 111; see Fig.14 , Fig.14 Schematic diagram of the structure of the rotating shaft mechanism 23 provided in some embodiments of the present application. Second, a part of the first elastic member 311 is located in the support frame 113d, another part of the first elastic member 311 is located in the first door panel 111, and the entirety of the second elastic member 312 is located in the first door panel 111; please refer to Fig.15 , Fig.15 A schematic diagram of the structure of the rotating shaft mechanism 23 provided in some other embodiments of the present application, thirdly, a portion of the first elastic member 311 is located in the support frame 113d, a portion of the second elastic member 312 is located in the first door panel 111, and another portion of the second elastic member 312 is located in the support frame 113d. This embodiment and the following embodiments are described by taking the first elastic member 311 as being entirely located in the support frame 113d and the second elastic member 312 as being entirely located in the first door panel 111 as an example.

[0150] It is worth noting that the phrase "located within the support frame 113d" in the above content refers to the area enclosed by the support frame 113d. The phrase "located within the first door panel 111" in the above content refers to the area enclosed by the first door panel 111. Since the support frame 113d is also located within the first door panel 111 in some states of the hinge mechanism 23, the phrase "located within the first door panel 111" in the above content refers to the area enclosed by the first door panel 111 and the support frame 113d, that is, located within the area enclosed by the first door panel 111 and outside the area enclosed by the support frame 113d.

[0151] See also Fig.16 and Fig.17 , Fig.16 for Fig.13 An exploded view of the first slider 113 and the support frame 113d in the rotating shaft mechanism 23 is shown; Fig.17 for Fig.16 The schematic diagram of the structure after the first slider 113 and the support frame 113d are assembled is shown. The first slider 113 may be provided with a second receiving groove 113a, and the support frame 113d is slidably disposed in the second receiving groove 113a. The sliding direction of the support frame 113d relative to the first slider 113 is the same as the sliding direction of the first slider 113 relative to the first door panel 111, that is, the direction of the damping force. At least part of the elastic component 310 is disposed in the second receiving groove 113a, that is, the first elastic member 311 is disposed in the second receiving groove 113a.

[0152] Specifically, the support frame 113d may include a support frame 113e and a rolling portion 113g, wherein the support frame 113e is slidably disposed in the second receiving groove 113a, and the rolling portion 113g is rotatably disposed on a side of the support frame 113e away from the second receiving groove 113a, and is rotatably connected to the support frame 113e. During the synchronous rotation of the support frame 113d (including the support frame 113e and the rolling portion 113g) and the first slider 113, the rolling portion 113g can abut against the concave-convex surface area 302a of the arc block 302b and roll along the concave-convex surface area 302a, and the rotation axis of the rolling portion 113g is parallel to the rotation axis of the first slider 113.

[0153] Exemplarily, the rolling portion 113g may be a roller, which is rotatably connected to the bracket 113e. When the rolling portion 113g abuts against the concave-convex surface area 302a, it can roll along the concave-convex surface area 302a. Meanwhile, during the rolling of the rolling portion 113g along the concave-convex surface area 302a, the rolling portion 113g can push the bracket 113e to slide in a direction close to the first slider 113, that is, to slide in a direction toward the elastic component 310 in the second receiving groove 113a, so that the bracket 113e squeezes the elastic component 310. After being squeezed, the elastic component 310 is elastically deformed and exerts a reaction force on the bracket 113e and the rolling portion 113g, so that a damping force is formed between the rolling portion 113g and the concave-convex surface area 302a.

[0154] In some embodiments, the bracket 113e may include an abutting portion 113f and a limiting portion 113h, for example, the abutting portion 113f is an abutting plate, and the limiting portion 113h is a limiting plate. One end of the elastic component 310 abuts against the abutting portion 113f, and the rolling portion 113g is rotatably arranged on the side of the abutting portion 113f away from the elastic component 310. The limiting portions 113h are arranged at both ends of the abutting portion 113f in a direction parallel to the rotation axis of the first slider 113, and the extension direction of the limiting portion 113h is parallel to the direction of the damping force, and the elastic component 310 is arranged between the two limiting portions 113h. In this way, the compression direction of the elastic component 310 can be further limited by the two limiting portions 113h, which is more conducive to improving the reliability of the overall structure. In addition, when the bracket 113e slides in the second accommodating groove 113a, the two limiting portions 113h can also guide the sliding of the bracket 113e. Furthermore, a matching portion that matches the limiting portion 113h may be provided in the second receiving groove 113a to ensure that the bracket 113e slides along the direction of the damping force.

[0155] Please continue reading Fig.16The first slider 113 has a second frame, which is the frame of the first slider 113 closer to the first door panel 111 along the damping force direction, and has an avoidance notch 113i, the width of which is greater than or equal to the width of the first elastic member 311. The first elastic member 311 is located in the second accommodation groove 113a, and abuts against the second elastic member 312 through the avoidance notch 113i.

[0156] The specific structure of the elastic component 310 is described in detail below, that is, the specific structure of the first elastic member 311 and the second elastic member 312 is described in detail.

[0157] See also Fig.18 and Fig.19 , Fig.18 A three-dimensional diagram of a first elastic member 311 provided in some embodiments of the present application; Fig.19 The first elastic member 311 is a schematic diagram of the structure of some embodiments of the present application. The first elastic member 311 can be a strip-shaped structure or a sheet-shaped structure. The first elastic member 311 extends along a curve. For example, the extension path of the first elastic member 311 is wavy, broken line, etc. The extension direction of the length of the first elastic member 311 is perpendicular to the direction of the damping force, that is, the arrangement direction of the first slider 113 and the first door panel 111, that is, Fig.18 In this way, when the rotating shaft mechanism 23 rotates, the elastic component 310 is squeezed, and the first elastic member 311 is elastically deformed after being squeezed. Since the first elastic member 311 extends along the curve, the elastic deformation of the first elastic member 311 can be achieved by changing the shape and direction of the curve extension. In this way, the first elastic member 311 has a simple structure, is easy to install, and has a low manufacturing and processing cost.

[0158] Please continue reading Fig.18 The first elastic member 311 includes a plurality of first connecting segments 311a arranged in parallel, and second connecting segments 311b are arranged between adjacent first connecting segments 311a, and a first angle α1 is formed between the first connecting segments 311a and the second connecting segments 311b. The first angle α1 is greater than 0 degrees and less than 180 degrees.

[0159] In this way, when the rotating shaft mechanism 23 rotates, the elastic component 310 is squeezed, and the first elastic member 311 is elastically deformed after being squeezed, and the elastic deformation of the first elastic member 311 is achieved by the change of the first angle α1. The first angle α1 after the first elastic member 311 is compressed is larger than the first angle α1 when the first elastic member 311 is not subjected to force. In this way, the structure of the first elastic member 311 is simple, easy to install, and the manufacturing and processing cost is low. In addition, the way in which the first elastic member 311 undergoes elastic deformation is simpler, avoiding the problem of the first elastic member 311 being skewed or arched during elastic deformation.

[0160] See also Fig. 20 , Fig. 20 Schematic diagram of the structure of the second elastic member 312 provided in some embodiments of the present application. The structure of the second elastic member 312 can be similar to the structure of the second elastic member 312. That is, the structure of the second elastic member 312 can also be a strip structure or a sheet structure, and the second elastic member 312 also extends along a curve, and the extension direction of the length of the second elastic member 312 is perpendicular to the direction of the damping force, that is, the arrangement direction of the first slider 113 and the first door panel 111, that is, Fig. 20 In this way, when the rotating shaft mechanism 23 rotates, the elastic component 310 is squeezed, and the second elastic member 312 is elastically deformed after being squeezed. Since the second elastic member 312 extends along the curve, the elastic deformation of the second elastic member 312 can be achieved by changing the shape and direction of the curve extension. In this way, the second elastic member 312 has a simple structure, is easy to install, and has a low manufacturing and processing cost.

[0161] Please continue reading Fig. 20 The second elastic member 312 includes a plurality of third connecting segments 312a arranged in parallel, and a fourth connecting segment 312b is arranged between adjacent third connecting segments 312a, and a second angle α2 is formed between the third connecting segment 312a and the fourth connecting segment 312b. The second angle α2 is greater than 0 degrees and less than 180 degrees.

[0162] In this way, when the rotating shaft mechanism 23 rotates, the elastic component 310 is squeezed, and the second elastic member 312 is elastically deformed after being squeezed, and the elastic deformation of the second elastic member 312 is achieved by the change of the second angle. The second angle α2 after the second elastic member 312 is compressed is larger than the second angle α2 when the second elastic member 312 is not subjected to force. In this way, the second elastic member 312 has a simple structure, is easy to install, has a low manufacturing and processing cost, and the way in which the second elastic member 312 is elastically deformed is simpler, avoiding the problem of the second elastic member 312 being skewed or arched during elastic deformation.

[0163] See also Fig.21 , Fig.21 for Fig.18 The first elastic member 311 and Fig. 20The second elastic member 312 is shown as a schematic diagram of a structure in which the second elastic member 312 is installed in the rotating shaft mechanism 23. Furthermore, the first elastic member 311 can achieve different elastic coefficients by setting the size of the first angle, and similarly, the second elastic member 312 can also achieve different elastic coefficients by setting the size of the second angle. Specifically, in the natural state of the elastic component 310, that is, in the state where the elastic component 310 is not subjected to force, the larger the first angle in the first elastic member 311, the smaller the elastic coefficient of the first elastic member 311, and the greater the deformability of the first elastic member 311. Similarly, the larger the second angle in the second elastic member 312, the smaller the elastic coefficient of the second elastic member 312, and the greater the deformability of the second elastic member 312. It can be seen from the above that the elastic coefficient of the second elastic member 312 is greater than the elastic coefficient of the first elastic member 311, so when the material, thickness and width of the first elastic member 311 and the second elastic member 312 are the same, the elastic coefficient of the first elastic member 311 can be set to be greater than the second angle to achieve a smaller elastic coefficient than the elastic coefficient of the second elastic member 312.

[0164] In this way, the structure of the first elastic member 311 is similar to that of the second elastic member 312 , and the processing and manufacturing of the first elastic member 311 and the second elastic member 312 are more convenient, which facilitates the mass production of the first elastic member 311 and the second elastic member 312 .

[0165] The number of the first elastic members 311 can be one, two, three, etc. Similarly, the number of the second elastic members 312 can also be one, two, three, etc. Fig.21 In the illustrated embodiment, the number of the first elastic members 311 is multiple and the number of the second elastic members 312 is multiple, but this does not represent a special limitation on the present application. When the number of the first elastic members 311 and the number of the second elastic members 312 are multiple, the multiple first elastic members 311 are stacked in the direction of the damping force, and the multiple second elastic members 312 are stacked in the direction of the damping force.

[0166] In some other embodiments, see Fig. 22 , Fig. 22 Schematic diagram of the structure of the first elastic member 311 provided in some embodiments of the present application. The difference between the first elastic member 311 in this embodiment and the first elastic member 311 in the above embodiment is that the extension direction of the length of the first elastic member 311 in this embodiment is consistent with the direction of the damping force, that is, Fig.21 The X-axis direction.

[0167] See also Fig.23 , Fig.23 for Fig. 22 The schematic diagram shows the structure of the first elastic member 311 being installed on the rotating shaft mechanism 23 . Fig.23The number of the first elastic members 311 in the embodiment is multiple for illustration. In other embodiments, the number of the first elastic members 311 may be one, two, four, etc. Fig.23 As shown, the extension direction of the length of the second elastic member 312 may also be consistent with the direction of the damping force.

[0168] See also Fig.24 and Fig.25 , Fig.24 A three-dimensional diagram of a second elastic member 312 provided in some further embodiments of the present application; Fig.25 for Fig.23 The schematic diagram of the structure of the second elastic member 312 is shown. The second elastic member 312 is a plate-like structure or a block-like structure. The cross-sectional shape of the second elastic member 312 can be circular, elliptical, square, or irregular, etc. This embodiment and the following embodiments are described by taking the cross-sectional shape of the second elastic member 312 as an example. The second elastic member 312 is arranged in the first door panel 111, and the thickness direction of the second elastic member 312 is arranged perpendicular to the direction of the damping force. In some embodiments, the length direction of the second elastic member 312 is consistent with the direction of the damping force. In other embodiments, the width direction of the second elastic member 312 is consistent with the direction of the damping force. This embodiment and the following embodiments are described by taking the width direction of the second elastic member 312 as an example.

[0169] The second elastic member 312 includes a first surface 312d and a second surface 312e that are arranged opposite to each other along the thickness direction thereof. The second elastic member 312 is provided with at least one first through hole 312c that penetrates the first surface 312d and the second surface 312e. That is, the axial direction of the first through hole 312c is consistent with the thickness direction of the second elastic member 312. When the elastic component 310 is squeezed, the second elastic member 312 is squeezed and elastically deformed, and the first through hole 312c can be used as a deformation gap of the second elastic member 312. That is, when the second elastic member 312 is squeezed and deformed, the elastic deformation is mainly achieved through the change in the shape of the first through hole 312c. In this way, the second elastic member 312 has a simple structure and is easy to install. When the second elastic member 312 is squeezed, the deformation trend can be controlled.

[0170] Please continue reading Fig.24In some embodiments, a plurality of first through holes 312c are provided, and the plurality of first through holes 312c are arranged in an array on the second elastic member 312, that is, the spacing between the plurality of first through holes 312c is equal. In this way, when the elastic component 310 is squeezed, the plurality of first through holes 312c can be used as deformation gaps of the second elastic member 312, that is, when the elastic component 310 is squeezed, the second elastic member 312 realizes its own elastic deformation through the deformation of the plurality of first through holes 312c, and the deformation form of the second elastic member 312 is simpler, and the second elastic member 312 can set the deformability of the second elastic member 312 by setting the number of the first through holes 312c. Specifically, when the size of the first through holes 312c is fixed, the more the number of the first through holes 312c is, the stronger the deformability of the second elastic member 312 is, and the fewer the number of the first through holes 312c is, the weaker the deformability of the second elastic member 312 is. Alternatively, the deformability of the second elastic member 312 can also be set by setting the size of the first through hole 312c. Specifically, when the number of first through holes 312c is fixed, the larger the first through holes 312c, the stronger the deformability of the second elastic member 312, and the smaller the first through holes 312c, the weaker the deformability of the second elastic member 312.

[0171] See also Fig.26 , Fig.26 for Fig.25 The second elastic member 312 is shown as a schematic diagram of a structure in which the second elastic member 312 is installed in the rotating shaft mechanism 23. In some embodiments, the second elastic member 312 includes a first side 313 and a second side 314 connected between the first surface 312d and the second surface 312e and arranged opposite to each other, and the first side 313 has a first notch 312f, and the first notch 312f passes through the first surface 312d and the second surface 312e of the second elastic member 312. The second side 314 has a second notch 312g, and the second notch 312g passes through the first surface 312d and the second surface 312e of the second elastic member 312. And the first notch 312f and the second notch 312g are symmetrically arranged relative to the geometric center of the second elastic member 312, and the "geometric center" here refers to the central position of the second elastic member 312. In this way, when the elastic component 310 is subjected to the extrusion force, in the direction of the damping force, the first side 313 has the first notch 312f and the second side 314 has the second notch 312g, and the elastic deformation of the second elastic member 312 can also occur at the first notch 312f and the second notch 312g, thereby achieving the compression of the second elastic member 312 in the damping force direction. The provision of the first notch 312f and the second notch 312g facilitates setting the deformation trend of the second elastic member 312, that is, the tendency of the second elastic member 312 to be compressed along the damping force direction.

[0172] In some embodiments, the first notch 312f has a first groove bottom wall and a first opening opposite to the first groove bottom wall, and the groove side walls of the first notch 312f extend in a direction away from each other from the first groove bottom wall to the first opening. In other words, the distance between the groove side walls of the first notch 312f gradually increases from the first groove bottom wall to the first opening. In this way, an angle is formed at the first groove bottom wall of the first notch 312f, and the cross-sectional shape of the first notch 312f is approximately triangular. When the elastic component 310 is squeezed, the second elastic member 312 is elastically deformed at the first notch 312f. The deformation of the first notch 312f can be achieved by the change of the angle of the first notch 312f located at the first groove bottom wall. Specifically, after the second elastic member 312 is squeezed, the angle of the first notch 312f located at the first groove bottom wall gradually decreases with the squeezing, so as to achieve the compression of the second elastic member 312 in the direction of the damping force.

[0173] Similarly, the second notch 312g has a second groove bottom wall and a second opening opposite to the second groove bottom wall. In the direction from the second groove bottom wall to the second opening, the groove side walls of the second notch 312g extend in a direction away from each other. In other words, in the direction from the second groove bottom wall to the second opening, the distance between the groove side walls of the second notch 312g gradually increases. In this way, an angle is formed at the second groove bottom wall of the second notch 312g, and the cross-sectional shape of the second notch 312g is approximately triangular. When the elastic component 310 is squeezed, the second elastic member 312 is elastically deformed at the second notch 312g. The deformation of the second notch 312g can be achieved by the change of the angle of the second notch 312g located at the second groove bottom wall. Specifically, after the second elastic member 312 is squeezed, the angle of the second notch 312g located at the second groove bottom wall gradually decreases with the squeezing, so as to achieve the compression of the second elastic member 312 in the direction of the damping force.

[0174] In summary, the second elastic member 312 has a simple structure and is easy to install. The first notch 312f and the second notch 312g are provided to facilitate setting the deformation tendency of the second elastic member 312, that is, the tendency of the second elastic member 312 to be compressed along the direction of the damping force.

[0175] In some embodiments, the structure of the first elastic member 311 is similar to that of the second elastic member 312 , that is, the structure of the first elastic member 311 can also be set as a plate structure or a block structure, and at least one through hole can also be provided on the first elastic member 311 .

[0176] Since the elastic coefficient of the first elastic member 311 is smaller than the elastic coefficient of the second elastic member 312, the elastic coefficients of the first elastic member 311 and the second elastic member 312 can be set by setting different numbers of first through holes 312c. Specifically, when the size of the first through holes 312c is fixed, the number of first through holes 312c on the first elastic member 311 is greater than the number of first through holes 312c on the second elastic member 312. In this way, the elastic coefficient of the first elastic member 311 is smaller than the elastic coefficient of the second elastic member 312.

[0177] In some other embodiments, the first elastic member 311 and the second elastic member 312 can set the elastic coefficient by providing the first through holes 312c of different sizes. Specifically, when the number of the first through holes 312c is fixed, the cross-sectional area of ​​the first through holes 312c on the first elastic member 311 is larger than the cross-sectional area of ​​the first through holes 312c on the second elastic member 312. In this way, the elastic coefficient of the first elastic member 311 is smaller than the elastic coefficient of the second elastic member 312.

[0178] The above mentioned setting of the elastic coefficient of the first elastic member 311 and the elastic coefficient of the second elastic member 312 by the number or size of the first through holes 312c is based on the premise that other parameters of the first elastic member 311 are fixed with other parameters of the second elastic member 312, for example, the material of the first elastic member 311 is consistent with the material of the second elastic member 312, the shape of the first elastic member 311 is consistent with the shape of the second elastic member 312, and so on.

[0179] In some other embodiments, the elastic coefficient of the first elastic member 311 and the elastic coefficient of the second elastic member 312 can be set by elastic modulus. Specifically, the elastic modulus of the first elastic member 311 is smaller than the elastic modulus of the second elastic member 312. The larger the elastic modulus of an object, the weaker the deformability of the object, and the smaller the elastic modulus of an object, the stronger the deformability of the object. The elastic modulus is related to the material and process of the object. Therefore, the first elastic member 311 can be manufactured by selecting a material with a smaller elastic modulus, and the second elastic member 312 can be manufactured by selecting a material with a larger elastic modulus. Therefore, the first elastic member 311 and the second elastic member 312 can be manufactured by selecting different materials to achieve that the elastic coefficient of the first elastic member 311 is smaller than the elastic coefficient of the second elastic member 312. In this way, the shape structure of the first elastic member 311 and the shape structure of the second elastic member 312 can be designed to be the same. In the process of production and processing, the processing and manufacturing of the first elastic member 311 and the processing and manufacturing of the second elastic member 312 can use the same mold, which is conducive to the production and processing of the first elastic member 311 and the second elastic member 312.

[0180] When the elastic component 310 rotates, according to the deformation sequence of the first elastic member 311 and the second elastic member 312, the deformation of the elastic component 310 has two forms. Fig. 27 , Fig. 27 A schematic diagram of stress and strain of the elastic component 310 when it is squeezed is provided for some embodiments of the present application, wherein the X-axis represents the strain of the elastic component 310, the Y-axis represents the stress of the elastic component 310, T1 refers to the curve between stress and strain when the first elastic member 311 is squeezed, T2 refers to the curve between stress and strain when the second elastic member 312 is squeezed, and T3 refers to the curve between stress and strain when the elastic component 310 as a whole is squeezed. The first elastic member 311 and the second elastic member 312 are deformed at the same time. Since the elastic coefficient of the first elastic member 311 is smaller than the elastic coefficient of the second elastic member 312, when the elastic component 310 is in the second compression state, the elastic deformation of the first elastic member 311 is greater than the elastic deformation of the second elastic member 312, and the damping force required by the rotating shaft mechanism 23 is provided by the elastic deformation of the first elastic member 311 and the elastic deformation of the second elastic member 312 at the same time.

[0181] Second, see Fig.28 , Fig.28 A schematic diagram of stress and strain of the elastic component 310 when it is squeezed is provided for some other embodiments of the present application, wherein the X-axis represents the strain of the elastic component 310, and the Y-axis represents the stress of the elastic component 310, wherein F0 refers to the pre-stress of the first elastic member 311 in the initial state, F1 refers to the stress of the first elastic member 311 when it is squeezed, F2 refers to the stress of the second elastic member 312 when it is squeezed, and Fm is the sum of the stress of the first elastic member 311 when it is compressed and the stress of the second elastic member 312 when it is compressed, that is, Fm=F1+F2. That is to say, in this example, the elastic deformation of the first elastic member 311 and the second elastic member 312 has a sequence, and the first elastic member 311 with a smaller elastic coefficient is elastically deformed first, and the second elastic member 312 with a larger elastic coefficient is deformed later. When the first elastic member 311 is elastically deformed to a certain extent, the second elastic member 312 begins to deform. It can also be understood that the second elastic member 312 has a trigger value for elastic deformation, and the trigger value for elastic deformation of the second elastic member 312 is greater than the trigger value for elastic deformation of the first elastic member 311. After the second elastic member 312 is elastically deformed, the first elastic member 311 is in a constant force state and no longer elastically deforms. In this way, the problem of surface cracks or even fractures caused by continuous deformation of the first elastic member 311 after being squeezed is avoided.

[0182] The rotation process of the rotating shaft mechanism 23 provided in this embodiment is described in detail below.

[0183] See also Fig.29 , Fig.29It is a schematic diagram of the structure when the hinge mechanism 23 is in the unfolded state. When the foldable electronic device 01 is in the unfolded position, the rolling portion 113g is located on one side of the middle beam 110 and abuts against the concave and convex surface area 302a. At this time, the elastic component 310 is not compressed and is in a free state, or in other words, the elastic component 310 is in a first compressed state, that is, compared with the second compressed state, the elastic deformation of the elastic component 310 in the first compressed state is smaller. When the foldable electronic device 01 rotates from the unfolded position to the folded position, the first shell 21 and the second shell 22 respectively drive the corresponding door panels to rotate along the a1 and a2 directions (a1 and a2 are opposite directions).

[0184] During the process of the foldable electronic device 01 rotating from the unfolded position to the folded position, please refer to Fig.30 , Fig.30 for Fig.29 The structure diagram of the rotating shaft mechanism 23 when it starts to rotate from the unfolded position to the folded position. The rolling parts 113g on both sides of the middle beam 110 are respectively in contact with the convex parts of the corresponding concave-convex surface area 302a, and respectively roll along the corresponding concave-convex surface area 302a (i.e., directions b1 and b2 in the figure). Since the convex part of the concave-convex surface area 302a is closer to the first door panel 111 than the concave part, when the rolling part 113g rolls along the concave-convex surface area 302a, the rolling part 113g can push the corresponding bracket 113e to slide in the direction close to the slider (directions c1 and c2 in the figure), so that the bracket 113e squeezes the elastic component 310. At this time, the elastic component 310 is compressed, and the reaction force applied to the bracket 113e and the rolling part 113g causes a damping force to be generated between the rolling part 113g and the concave-convex surface area 302a, and the user can feel the damping force when rotating the foldable electronic device 01.

[0185] See also Fig.31 , Fig.31 This is a structural diagram of the rolling portion 113g of the hinge mechanism 23 provided in the embodiment of the present application abutting against the edge of the middle beam 110. The user continues to rotate the foldable electronic device 01, and when the rolling portion 113g is located between the first side and the second side of the middle beam 110 along the thickness direction, that is, when the rolling portion 113g is located on one side of the middle beam 110 along the width direction and abuts against the middle beam 110, the elastic component 310 is subjected to the maximum squeezing force.

[0186] See also Fig.32 , Fig.32The structural diagram of the rolling portion 113g of the rotating shaft mechanism 23 provided in the embodiment of the present application when it is completely separated from the concave-convex surface area 302a. Continue to rotate the foldable electronic device 01 so that the rolling portion 113g passes over the middle beam 110 and moves to the second side of the middle beam 110 along the thickness direction. At this time, the rolling portion 113g is completely separated from the concave-convex surface area 302a, and the damping force disappears, that is, the extrusion force applied to the elastic component 310 disappears, and the energy stored in the elastic component 310 is released, causing the elastic component 310 to rebound and push the bracket 113e and the rolling portion 113g to move in the direction away from the slider (directions c3 and c4 in the figure). At the same time, the rotation of the foldable electronic device 01 is assisted so that the foldable electronic device 01 can be quickly rotated to the folded position, and the elastic components 310 rebound to a free state.

[0187] When the foldable electronic device 01 rotates from the folded position to the unfolded position, the first shell 21 and the second shell 22 respectively drive the corresponding door panels to move along the Fig.32 The reverse rotation of a1 and a2 is opposite to the above movement process.

[0188] The above description is based on the example that the foldable electronic device 01 is a mobile phone with an external foldable display screen. The following description is based on the example that the foldable electronic device 01 is a mobile phone with an internal foldable display screen. Fig.33 , Fig.33 A structural diagram of a hinge mechanism 23 of another foldable electronic device 01 provided in an embodiment of the present application.

[0189] When the foldable electronic device 01 is a mobile phone with an inward folding display screen, in the above-mentioned hinge mechanism 23, the first component 100 is a base 120, the second component 200 is a swing arm 220, and the base 120 is provided with swing arms 220 on both sides along the length direction. The rotation directions of the swing arms 220 located on both sides of the base 120 are opposite.

[0190] The rotating shaft mechanism 23 also includes a rotating shaft 500, through which the swing arm 220 is rotatably connected to the base 120, the first damping part 302 is a first cam, the second damping part 303 is a second cam, both the first cam and the second cam are sleeved on the rotating shaft 500, the first cam can only slide along the axial direction of the rotating shaft 500, and the second cam is fixed relative to the swing arm 220, that is, the second cam rotates synchronously with the swing arm 220. The rotating shaft 500 sequentially penetrates the elastic component 310 along the stacking direction of the elastic component 310, and in the process of the swing arm 220 rotating relative to the base 120, the cam surface of the first cam and the cam surface of the second cam abut against each other and rotate relatively, so that the first cam slides along the axial direction of the rotating shaft 500 and presses the elastic component 310.

[0191] In some embodiments, the swing arms 220 on both sides of the base 120 are respectively provided with rotating shafts 500. Therefore, the elastic components 310 can be respectively provided on the two rotating shafts 500. Alternatively, the two rotating shafts 500 can also penetrate the elastic components 310 at the same time. Therefore, the present application does not make any special limitation on this.

[0192] In this way, when the foldable electronic device 01 rotates between the unfolded position and the folded position, the first cam squeezes the elastic component 310, causing the elastic component 310 to deform and applying a reaction force to the first cam, thereby forming a damping force between the cam surface of the first cam and the cam surface of the second cam to prevent the user from applying excessive force and causing damage.

[0193] It can be understood that the mobile phone with an inner folding display provided in this embodiment and the mobile phone with an outer folding display provided in the above embodiment are different only in the structure of the damping assembly 300 and the process of generating the damping force, and their rotation principle (i.e., rotation between the unfolded position and the folded position) is basically the same. Therefore, the following only describes the damping assembly 300 of the mobile phone with an inner folding display.

[0194] Specifically, see Fig.34 , Fig.34 for Fig.33 A structural diagram of the first cam and the second cam of the rotating shaft mechanism 23 being meshed with each other is provided. The first cam has a first cam surface, and the second cam has a second cam surface. When the first cam surface and the second cam surface are meshed with each other, the convex point on the first cam surface extends into the concave point on the second cam surface, and at the same time, the convex point on the second cam surface extends into the concave point on the first cam surface, thereby forming mutual meshing. When the foldable electronic device 01 is in the unfolded position, the first cam and the second cam are meshed with each other, and there is no force between the two along the axial direction of the rotating shaft 500, and the elastic components 310 are all in a free state.

[0195] When the foldable electronic device 01 rotates from the unfolded position to the folded position, Fig.34The swing arm 220 shown drives the second cam to rotate synchronously, that is, the second cam rotates relative to the first cam, so the first cam surface rotates relative to the second cam surface. For example, the second cam rotates along the direction a, and the inner walls of the corresponding convex points and concave points between the first cam surface and the second cam surface abut against each other. Since there is an inclined surface between the concave point and the adjacent convex point, when the first cam and the second cam rotate relative to each other, a component force F along the axial direction of the rotating shaft 500 can be generated; and since the first cam can slide along the axial direction of the rotating shaft 500, the component force F can make the first cam slide along the axial direction of the rotating shaft 500 (the direction indicated by the component force F in the figure) and compress the elastic component 310. At this time, the reaction force applied by the elastic component 310 to the first cam makes the first cam and the second cam abut against each other and generate a damping force. When the foldable electronic device 01 is rotated with force, the damping force can be felt, so as to avoid excessive force and damage to the foldable electronic device 01.

[0196] Then, continue to rotate the foldable electronic device 01, see Fig.35 , Fig.35 for Fig.34 The structural diagram provided is when the convex points of the first cam and the second cam abut against each other. When the convex points between the first cam surface and the second cam surface abut against each other, the extrusion force on the elastic component 310 is the largest, and the elastic component 310 applies a reaction force F to the first cam.

[0197] The second cam continues to rotate along the direction a, and the first cam surface and the second cam surface are at positions where the convex points are misaligned with each other, that is, the convex points are rotated to positions corresponding to another adjacent concave point.

[0198] At this time, the squeezing force applied by the first cam to the elastic component 310 disappears, and the energy stored in the elastic component 310 is released. Under the elastic force of the elastic component 310, that is, under the reaction force F applied by the elastic component 310 to the first cam, the first cam slides in a direction close to the second cam (the direction indicated by the reaction force F in the figure), and the convex point quickly extends into another adjacent concave point, so that the foldable electronic device 01 can be quickly rotated to the folded position, that is, the rotation of the foldable electronic device 01 is assisted. The user does not need to continuously apply external force to complete the rotation of the foldable electronic device 01, which is beneficial to improving the user's feel when using it, so as to remind the user that the foldable electronic device 01 has been rotated to the folded position, thereby helping to protect the foldable electronic device 01.

[0199] It should be noted that the process of rotating the foldable electronic device 01 from the folded position to the unfolded position is the same as the process of rotating from the unfolded position to the folded position, and therefore, it will not be described repeatedly.

[0200] Furthermore, the damping assembly 300 is merely an example, that is, the first damping portion 302 and the second damping portion 303 of the damping assembly 300 may also be other possible structural forms, and therefore, the present application does not make any special limitation thereto.

[0201] The present application also provides a rotating shaft mechanism 23, which includes a center beam 110, a door panel and a slider, and the door panel is rotatably connected to the center beam 110. The slider is arranged between the door panel and the center beam 110, the first end of the slider is rotatably connected to the center beam 110, the second end of the slider is slidably connected to the door panel, the rotation axis of the slider is perpendicular to the sliding direction of the slider, and the door panel and the slider rotate synchronously. The support frame 113d is slidably connected to the slider, and the support frame 113d rotates synchronously with the slider. The elastic component 310 is connected between the center beam 110 and the door panel, and the elastic component 310 is used to provide a damping force for the relative rotation of the door panel and the center beam 110, and the elastic component 310 includes a first elastic member 311 and a second elastic member 312, which are arranged in the direction of the damping force and connected, and the door panel has a first frame away from the slider, and the second elastic member 312 is located between the slider and the first frame.

[0202] In some embodiments, the elastic component 310 includes a first elastic member 311 and a second elastic member 312 . The first elastic member 311 and the second elastic member 312 are independent of each other and abut against each other. The elastic coefficient of the first elastic member 311 is the same as the elastic coefficient of the second elastic member 312 .

[0203] In another possible embodiment, the foldable electronic device 01 may also be a laptop computer, in which the first component 100 of the hinge mechanism 23 is fixedly connected to the display cover, and the second component 200 is connected to the keyboard base. When the user flips the cover, the damping component 300 can generate a damping force to improve the user's hand feeling when using it, thereby preventing the foldable electronic device 01 from being damaged due to excessive force.

[0204] In the foldable electronic device 01 (ie, a laptop computer) provided in this embodiment, since the working principle of the above-mentioned hinge mechanism 23 is the same as that of the above-mentioned embodiments, it will not be described repeatedly.

[0205] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0206] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A hinge mechanism, applied to a foldable electronic device, characterized in that: include: Middle beam; A slider, hinged to one side of the middle beam; A door panel, which is located on the same side of the middle beam as the slider, the door panel and the slider are slidably matched, and the door panel has a first frame facing away from the middle beam; An elastic component, the elastic component is connected between the center beam and the door panel, and the elastic component is used to provide a damping force for the relative rotation of the center beam and the slider, one end of the elastic component abuts against a side of the slider close to the center beam, and the other end of the elastic component abuts against the first frame, the elastic component includes a first elastic member and a second elastic member arranged and connected along the damping force direction, and the elastic coefficient of the first elastic member is different from the elastic coefficient of the second elastic member; The trigger value of the elastic deformation of the second elastic member is greater than the trigger value of the elastic deformation of the first elastic member, so that the first elastic member is elastically deformed first.

2. The rotating shaft mechanism according to claim 1, characterized in that: The elastic coefficient of the first elastic member is smaller than the elastic coefficient of the second elastic member; When the elastic component is in a compressed state, the stress on the first elastic member is F1, and when the first elastic member is at its elastic limit, the stress on the first elastic member is F2, where F1 is equal to a*F2, and a is less than or equal to 0.

9.

3. The rotating shaft mechanism according to claim 1 or 2, characterized in that: The sliding block rotates relative to the middle beam around a first axis, and the first elastic member extends along a curve in the direction of the first axis.

4. The rotating shaft mechanism according to claim 1 or 2, characterized in that: The first elastic member extends along a curved line in the direction of the damping force.

5. The rotating shaft mechanism according to claim 3, characterized in that: The first elastic member includes a plurality of first connecting segments arranged in parallel, two adjacent first connecting segments are connected by a second connecting segment, and a first angle is formed between the first connecting segment and the second connecting segment.

6. The rotating shaft mechanism according to claim 1 or 2, characterized in that: The slider rotates relative to the middle beam around a first axis, and a thickness direction of the first elastic member is perpendicular to the first axis and perpendicular to a direction of the damping force; The first elastic member includes a first surface and a second surface which are arranged opposite to each other in the thickness direction. The first elastic member also has at least one first through hole, and the first through hole penetrates the first surface and the second surface.

7. The rotating shaft mechanism according to claim 3, characterized in that: The second elastic member extends along a curved line in the direction of the first axis.

8. The rotating shaft mechanism according to claim 3, characterized in that: The second elastic member extends along a curved line in the direction of the damping force.

9. The rotating shaft mechanism according to claim 5, characterized in that: The second elastic member includes a plurality of third connecting segments arranged in parallel, two adjacent third connecting segments are connected by a fourth connecting segment, a second angle is formed between the third connecting segment and the fourth connecting segment, and the second angle is smaller than the first angle.

10. The rotating shaft mechanism according to claim 6, characterized in that: The slider rotates relative to the middle beam around a first axis, and a thickness direction of the second elastic member is perpendicular to the first axis and perpendicular to a direction of the damping force; The second elastic member includes a third surface and a fourth surface which are arranged opposite to each other in the thickness direction. The second elastic member also has at least one second through hole, and the second through hole penetrates the third surface and the fourth surface.

11. The rotating shaft mechanism according to claim 10, characterized in that: When there are a plurality of second through holes, a plurality of second through hole arrays are disposed on the second elastic member.

12. The rotating shaft mechanism according to claim 10 or 11, characterized in that: The second elastic member further includes a first side edge and a second side edge connected between the first surface and the second surface and arranged opposite to each other, the first side edge has a first notch, and the first notch passes through the third surface and the fourth surface; The second side has a second notch, the first notch and the second notch are symmetrically arranged relative to the geometric center of the second elastic member, and the second notch runs through the third surface and the fourth surface.

13. The rotating shaft mechanism according to claim 12, characterized in that: The first notch has a first opening and a first groove bottom wall, and in a direction from the first opening to the first groove bottom wall, groove side walls of the first notch extend in a direction away from each other; The second notch has a second opening and a second groove bottom wall. In a direction from the second opening to the second groove bottom wall, groove side walls of the second notch extend in a direction away from each other.

14. The rotating shaft mechanism according to claim 1 or 2, characterized in that: The elastic modulus of the first elastic member is smaller than the elastic modulus of the second elastic member.

15. The rotating shaft mechanism according to claim 1 or 2, characterized in that: The middle beam is provided with a matching portion; The slider comprises a slider body and a hinged portion which are connected to each other, wherein the hinged portion is hinged to the matching portion; and the door panel is slidably matched with the slider body.

16. The rotating shaft mechanism according to claim 15, characterized in that: An arc-shaped block is formed on the middle beam, and the arc-shaped block has a concave-convex surface area, and the concave-convex surface area includes a convex portion and a concave portion; The rotating shaft mechanism further includes a support frame, the support frame is slidably connected to the slider body, and the support frame rotates synchronously with the slider, the support frame abuts against the concave-convex surface area, and the elastic component abuts against a side of the support frame away from the arc block; Wherein, the elastic component has a first compression state and a second compression state, and the elastic deformation of the elastic component in the first compression state is smaller than the elastic deformation of the elastic component in the second compression state; when the elastic component is in the first compression state, the support frame abuts against the concave surface; when the elastic component is in the second compression state, the support frame abuts against the convex surface.

17. The rotating shaft mechanism according to claim 16, characterized in that: The sliding block is provided with a second accommodating groove, the supporting frame is slidably disposed in the second accommodating groove, and at least a part of the elastic component is located in the second accommodating groove.

18. The rotating shaft mechanism according to claim 17, characterized in that: The elastic coefficient of the first elastic member is smaller than the elastic coefficient of the second elastic member, and the first elastic member is located on a side of the second elastic member adjacent to the middle beam.

19. The rotating shaft mechanism according to claim 18, characterized in that: The first elastic member is located in the second accommodating groove, and at least a portion of the second elastic member is located between the slider and the first frame; The frame of the sliding block facing away from the middle beam is provided with an avoidance notch, and the first elastic member and the second elastic member abut against the avoidance notch.

20. The rotating shaft mechanism according to claim 17, characterized in that: The support frame includes a bracket and a rolling part, the bracket is slidably arranged in the second containing groove, and the rolling part is rotatably arranged on a side of the bracket close to the middle beam and is rotatably connected to the bracket; When the bracket and the slider rotate synchronously, the rolling part abuts against the arc block and rolls along the arc block, and the rolling axis of the rolling part is parallel to the rotation axis of the slider.

21. A housing assembly, characterized in that: include: a first shell; a second shell; and A rotating shaft mechanism, wherein the rotating shaft mechanism is the rotating shaft mechanism according to any one of claims 1 to 20, and the rotating shaft mechanism is connected between the first shell and the second shell.

22. A foldable electronic device, characterized in that: include: A housing assembly, wherein the housing assembly is the housing assembly according to claim 21; A folding screen, the folding screen includes a first display area, a second display area and a third display area, the third display area is connected between the first display area and the second display area, the first display area is arranged on the first shell, the second display area is arranged on the second shell, and the third display area is arranged on the hinge mechanism.

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