Rotating shaft mechanism and electronic equipment

Abstract

The embodiment of the invention provides a rotating shaft mechanism and electronic equipment, relates to the technical field of electronic equipment, and aims to provide a thin rotating shaft mechanism. The rotating shaft mechanism comprises an inner shaft, a rotating assembly capable of rotating relative to the inner shaft and an outer shaft, the inner shaft is connected with the outer shaft, and the rotating assembly is located between the inner shaft and the outer shaft. The rotating assembly comprises a first swing arm, a second swing arm and a linkage structure, and the first swing arm and the second swing arm can rotate relative to the inner shaft. The linkage structure comprises a rotating part, a first translation part and a second translation part, the first swing arm and the second swing arm can drive the first translation part and the second translation part to move reversely, and the rotating part can synchronize movement of the first translation part and the second translation part. The axial direction of the rotating part is the thickness direction of the rotating shaft mechanism. By adjusting the thickness of the rotating piece, the flat rotating shaft mechanism can be obtained and is not limited by the axial size of the rotating piece.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a rotating shaft mechanism and electronic equipment. Background Art

[0002] Flexible screens are the development trend of the display industry. Foldable electronic devices have also become the focus in recent years, and mobile phone manufacturers have also launched foldable phones one after another.

[0003] A foldable electronic device includes a housing, a hinge mechanism, and a flexible screen, wherein the housing includes a left housing and a right housing that are separately arranged, the hinge mechanism is located between the left housing and the right housing, and the flexible screen is installed on the left housing and the right housing. When the left housing and the right housing are folded under the drive of the hinge mechanism, the flexible screen can be driven to fold, so that the electronic device is in a folded state. In this folded state, the electronic device has a small volume and is easy to store; when the left housing and the right housing are unfolded under the drive of the hinge mechanism, the flexible screen is driven to unfold, so that the electronic device is in an unfolded state. In this unfolded state, the display screen of the electronic device is larger, which can improve the user experience. Therefore, the hinge mechanism is a key component of a foldable electronic device.

[0004] As electronic devices continue to become thinner and lighter, hinge mechanisms also need to continue to develop towards a flatter shape. Summary of the invention

[0005] The embodiments of the present application provide a hinge mechanism and an electronic device having the hinge mechanism, which is used to provide a hinge mechanism with a relatively thin thickness.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions:

[0007] According to a first aspect of an embodiment of the present application, a hinge mechanism is provided, which can be used in a foldable electronic device with a flexible screen, for example, in a foldable screen mobile phone, a foldable screen tablet computer and other devices.

[0008] The rotating shaft mechanism comprises: an inner shaft and an outer shaft which are detachably connected, and a rotating assembly located between the inner shaft and the outer shaft and which can rotate relative to the inner shaft. The rotating assembly comprises a first swing arm, a second swing arm and a linkage structure. The first swing arm and the second swing arm can, for example, rotate relative to or opposite to each other along the rotation axis of the rotating shaft mechanism, so that the rotating shaft mechanism switches between a flattened state and a folded state. The first swing arm and the second swing arm rotate relative to each other, and the rotating shaft mechanism switches to a folded state. The first swing arm and the second swing arm rotate opposite to each other, and the rotating shaft mechanism switches to a flattened state. The linkage structure comprises a rotating member, a first translation member and a second translation member, the first translation member is slidably connected to the inner shaft and is clamped with the first swing arm; the second translation member is slidably connected to the inner shaft and is clamped with the second swing arm; the rotating member connects the first translation member and the second translation member, and is rotatably connected to the inner shaft, the rotating member is placed horizontally, and the rotation axis of the rotating member is parallel to a first direction, and the first direction is the direction from the inner shaft to the outer shaft. During the transformation of the rotating shaft mechanism from the flattened state to the folded state, the first swing arm and the second swing arm rotate relative to each other along the rotation axis of the rotating shaft mechanism, driving the first translation member and the second translation member to slide in opposite directions in a direction parallel to the second direction. When the first translation member and the second translation member slide, the rotating member is driven to rotate; the second direction intersects the direction of the rotation axis and the first direction, and the first direction is perpendicular to the direction of the rotation axis.

[0009] The embodiment of the present application provides a rotating shaft mechanism, and the linkage structure includes a first translation member, a second translation member and a rotating member. The first translation member and the second translation member always move along the width direction (second direction) of the rotating shaft mechanism, and the dimension requirement of the first translation member and the second translation member in the thickness direction (first direction) of the rotating shaft mechanism is the dimension of the thickness of the first translation member and the second translation member themselves. Synchronously, the axial direction of the rotating member is the thickness direction of the rotating shaft mechanism. In other words, the rotating member is placed horizontally in the rotating shaft mechanism. Then, the dimension requirement of the rotating member in the thickness direction of the rotating shaft mechanism is also the thickness of the rotating member itself in the axial direction. Compared with the radial direction of the rotating member in the linkage structure being parallel to the thickness direction, and the requirement of the linkage structure in the thickness direction being at least the outer diameter of the linkage structure, the thickness requirement of the linkage structure provided in the embodiment of the present application is significantly reduced, which is adapted to the flat space of the rotating shaft mechanism, has a simple structure, a small virtual space, and a thin thickness of the rotating shaft mechanism.

[0010] In a possible implementation, the first swing arm includes a first rotating member and a first flat plate that are fixedly connected; the second swing arm includes a second rotating member and a second flat plate that are fixedly connected; along the direction of the rotation axis, the first rotating member and the second rotating member are located on both sides of the linkage structure; along the second direction, the first flat plate and the second flat plate are located on both sides of the linkage structure; the first flat plate can drive the first rotating member to rotate relative to the inner shaft; the second flat plate can drive the second rotating member to rotate relative to the inner shaft. The swing arm includes a rotating member and a flat plate, which has a simple structure and is easy to implement.

[0011] In a possible implementation, the first translation member includes a first recessed portion that is concave away from the first rotating member, and the first rotating member includes a first protruding portion that protrudes toward the first translation member. The first protruding portion is cooperatively connected with the first recessed portion to achieve movement of the first translation member during rotation of the first rotating member.

[0012] That is to say, the first protrusion and the first recess are connected in cooperation, so that the first rotating member drives the first translation member to move along the second direction. This connection method of the protrusion and the recess has a simple structure and occupies little space.

[0013] In one possible implementation, the second translation member includes a second recessed portion that is concave away from the fourth rotating member, and the fourth rotating member includes a second protruding portion that protrudes toward the second translation member. The second protruding portion is cooperatively connected with the second recessed portion to achieve movement of the second translation member during rotation of the fourth rotating member.

[0014] That is to say, the second protrusion and the second recess are connected in cooperation, so that the fourth rotating member drives the second translation member to move along the second direction. This connection method of the protrusion and the recess has a simple structure and occupies little space.

[0015] In a possible implementation, the first protrusion is located at an end of the first rotating member away from the first swing arm, and the first recessed portion is located at an end of the first translation member close to the first swing arm.

[0016] That is, the first protrusion is arranged at the inner end of the first rotating member, and the first recess is arranged at the outer end of the first translating member. In this way, during the folding process of the rotating shaft mechanism, the first translating member can move a large amount, and the first rotating member can rotate at a full angle with a more sophisticated structure, and the space requirement of the rotating shaft mechanism in the second direction is relatively small, which helps to realize the sophisticated rotating shaft mechanism.

[0017] In a possible implementation, the second protrusion is located at an end of the fourth rotating member away from the second swing arm, and the second recess is located at an end of the second translation member close to the second swing arm.

[0018] That is, the second protrusion is arranged at the inner end of the fourth rotating member, and the second recess is arranged at the outer end of the second translation member. In this way, during the folding process of the rotating shaft mechanism, the second translation member can move a large amount, and the full-angle rotation of the fourth rotating member can be realized with a more sophisticated structure, and the space requirement of the rotating shaft mechanism in the second direction is relatively small, which helps to realize the sophistication of the rotating shaft mechanism.

[0019] In a possible implementation, the first swing arm further includes a third rotating member, which is fixedly connected to the first plate, and the third rotating member and the first rotating member are arranged on both sides of the linkage structure opposite to each other; the first plate can also drive the third rotating member to rotate relative to the inner shaft. The second swing arm further includes a fourth rotating member, which is fixedly connected to the second plate, and the fourth rotating member and the second rotating member are arranged on both sides of the linkage structure opposite to each other; the second plate can also drive the fourth rotating member to rotate relative to the inner shaft.

[0020] That is to say, each flat plate is connected to two rotating members, and the first swing arm and the second swing arm are symmetrically arranged. In this way, the support stability of the flat plate is strong and the symmetry of the rotating mechanism is improved.

[0021] In a possible implementation, the rotating member includes a gear, the first rotating member includes a first rack, the second rotating member includes a second rack, and the first rack and the second rack are respectively meshed with the gear.

[0022] That is to say, the synchronous rotation of the first translation member and the second translation member is achieved through the transmission cooperation between the gear and the rack. This meshing transmission structure has a simple structure, occupies a small space, and has relatively stable transmission.

[0023] In a possible implementation manner, a first guide portion is provided on a side of the inner shaft facing the linkage structure, and the first guide portion can guide the first translation member to move in a direction parallel to the second direction.

[0024] By providing the first guide portion, the first translation member can move linearly along the second direction in a balanced and stable manner.

[0025] In a possible implementation manner, a second guide portion is provided on a side of the inner shaft facing the linkage structure, and the second guide portion can guide the second translation member to move in a direction parallel to the second direction.

[0026] By providing the second guide portion, the second translation member can move linearly along the second direction in a balanced and stable manner.

[0027] In a possible implementation, the first guide portion includes a first guide groove and a first guide protrusion extending along the second direction; the first guide groove and the first guide protrusion are sequentially arranged along the second direction.

[0028] A portion of the first guide portion is a first guide groove, and a portion is a first guide protrusion, which can prevent the inner shaft from being thinned too much at the position where the first conductive portion is provided, thereby affecting the rigidity of the inner shaft.

[0029] In a possible implementation, the first guide groove is disposed close to the first flat plate and adjacent to the first rotating member; the first guide protrusion is disposed close to the second flat plate and adjacent to the second rotating member.

[0030] That is to say, the first guide portion is correspondingly arranged as the first guide groove in the area where the first protrusion moves in the first rotating member to avoid the first protrusion, so as to reduce the blocking effect of the first guide portion on the movement of the first protrusion.

[0031] In a possible implementation, the second guide portion includes a second guide groove and a second guide protrusion extending along the second direction, and the second guide groove and the second guide protrusion are sequentially arranged along the second direction.

[0032] A part of the second guide portion is a second guide groove, and a part of the second guide protrusion, which can prevent the inner shaft from being thinned too much at the position where the second conductive portion is arranged, thereby affecting the rigidity of the inner shaft.

[0033] In a possible implementation, the second guide groove is disposed close to the second flat plate and adjacent to the fourth rotating member, and the second guide protrusion is disposed close to the first flat plate and adjacent to the third rotating member.

[0034] That is to say, the second guide portion is correspondingly arranged as a second guide groove in the area where the second protrusion moves in the fourth rotating member to avoid the second protrusion, so as to reduce the blocking effect of the second guide portion on the movement of the second protrusion.

[0035] In a possible implementation, a first limit portion and a second limit portion are provided on the side of the inner shaft facing the linkage structure; along the second direction, the first limit portion and the second limit portion are located on both sides of the rotating member; the surfaces of the first limit portion and the second limit portion facing the rotating member are arc surfaces and are slidably connected to the rotating member.

[0036] In this way, the first limiting portion and the second limiting portion match the rotation trajectory of the rotating member, and the rotating member is confined between the first limiting portion and the second limiting portion, so as to limit the rotation trajectory of the rotating member.

[0037] In a possible implementation manner, a surface of the inner shaft facing away from the rotating assembly is a plane.

[0038] After the hinge mechanism is applied to the electronic device, the display screen of the electronic device is arranged on the surface of the inner shaft. By setting the surface of the inner shaft as a plane, the hinge mechanism has a plane support during the entire folding process, which protects the display screen and improves the reliability of the screen.

[0039] In a possible implementation, the rotating shaft mechanism also includes an outer shaft, and the inner shaft and the outer shaft are connected; the inner shaft has a first arc-shaped protrusion and a second arc-shaped protrusion on the side facing the first rotating member and the second rotating member, and the outer shaft has a first arc-shaped recessed portion and a second arc-shaped recessed portion on the side facing the first rotating member and the second rotating member; the first arc-shaped protrusion and the first arc-shaped recessed portion form a first arc-shaped groove, and the second arc-shaped protrusion and the second arc-shaped recessed portion form a second arc-shaped groove; the first rotating member can move in the first arc-shaped groove, and the second rotating member can move in the second arc-shaped groove.

[0040] That is to say, the first rotating member and the second rotating member both move in the arc groove. Then, the first rotating member and the second rotating member rotate around the axis of the first arc groove and the axis of the second arc groove respectively, and the rotation is stable with small deviation.

[0041] In a possible implementation, the inner shaft has a third arc-shaped protrusion and a fourth arc-shaped protrusion on the side facing the third rotating member and the fourth rotating member, respectively, and the outer shaft has a third arc-shaped recessed portion and a fourth arc-shaped recessed portion; the third arc-shaped protrusion and the third arc-shaped recessed portion form a third arc-shaped groove, and the fourth arc-shaped protrusion and the fourth arc-shaped recessed portion form a fourth arc-shaped groove; the third rotating member can move in the third arc-shaped groove, and the fourth rotating member can move in the fourth arc-shaped groove.

[0042] That is to say, the third rotating member and the fourth rotating member both move in the arc groove. Then, the third rotating member and the fourth rotating member rotate around the axis of the third arc groove and the axis of the fourth arc groove respectively, and the rotation is stable with small deviation.

[0043] In a possible implementation, the rotating assembly also includes a first damping member, which is slidably connected to the second rotating member and the third rotating member on the side away from the linkage structure; when the first swing arm drives the third rotating member to rotate and the second swing arm drives the second rotating member to rotate, the first damping member is used to apply resistance to the first swing arm and the second swing arm.

[0044] By arranging the first damping member in the rotating assembly, when the first swing arm and the second swing arm rotate, the first damping member applies resistance to the first swing arm and the second swing arm, so that the first swing arm and the second swing arm can hover when they rotate relative to the inner shaft. When the rotating shaft mechanism is applied to an electronic device, since the first shell is fixedly connected to the first swing arm, and the second shell is fixedly connected to the second swing arm, the hovering requirement during the folding process of the electronic device can be met, thereby improving the user experience.

[0045] In one possible implementation, the third rotating member and the second rotating member have a first cam and a second cam respectively on the side facing away from the linkage structure; the first damping member includes a first connected cam, a first elastic portion and a first pin shaft; the first connected cam is sleeved on one end of the first pin shaft close to the linkage structure and meshes with the first cam and the second cam; the first connected cam is rotatably installed on the first pin shaft, and the first elastic portion is sleeved on the first pin shaft.

[0046] This cam-to-cam meshing and abutting manner can enable the first damping member to apply resistance of multiple different strengths, and the magnitude of the resistance can be adjusted as needed to meet the requirements of multi-angle hovering of the rotating shaft mechanism.

[0047] In a possible implementation, the rotating assembly also includes a fifth rotating member and a sixth rotating member located on the side of the first damping member away from the linkage structure; the fifth rotating member and the sixth rotating member are arranged side by side along the second direction, the end of the fifth rotating member facing away from the sixth rotating member is connected to the first swing arm, and the end of the sixth rotating member facing away from the fifth rotating member is connected to the second swing arm, and the fifth rotating member and the sixth rotating member can rotate relative to the inner shaft respectively.

[0048] That is to say, each swing arm can be connected to multiple rotating parts, and the multiple rotating parts are reasonably arranged so that the swing arm is evenly stressed and rotates smoothly.

[0049] In a possible implementation, the first swing arm further includes a fifth rotating member, which is fixedly connected to the first plate, and is disposed on both sides of the first damping member opposite to the third rotating member; the first plate can also drive the fifth rotating member to rotate relative to the inner shaft. The second swing arm further includes a sixth rotating member, which is fixedly connected to the second plate, and is disposed on both sides of the first damping member opposite to the second rotating member; the second plate can also drive the sixth rotating member to rotate relative to the inner shaft.

[0050] That is to say, the flat plate in the swing arm is supported by a plurality of rotating parts, which can improve the stability of the flat plate.

[0051] In a possible implementation, the rotating assembly also includes a second damping member; the second damping member is slidably connected to the fifth rotating member and the sixth rotating member on the side close to the first damping member; when the first swing arm drives the fifth rotating member to rotate and the second swing arm drives the sixth rotating member to rotate, the second damping member is used to apply resistance to the first swing arm and the second swing arm.

[0052] That is to say, the rotating assembly may include multiple damping members, and the multiple damping members synchronously apply resistance to the swing arm at multiple positions and angles to improve the stability of the swing arm's hovering.

[0053] In a possible implementation, along the direction from the first side to the second side, the rotating shaft mechanism includes a plurality of rotating components arranged at intervals.

[0054] That is to say, the number and layout of the rotating components in the hinge mechanism can be flexibly adjusted in combination with the shape of the electronic device to meet the needs of different application scenarios.

[0055] In a possible implementation, the rotating shaft mechanism further includes a decorative cover, which is located on a side of the rotating assembly away from the inner shaft and connected to the inner shaft.

[0056] By providing the decorative cover, the internal structure of the rotating shaft mechanism can be hidden regardless of whether the rotating shaft mechanism is in a folded state or a flattened state, thereby improving the appearance of the rotating shaft mechanism.

[0057] According to a second aspect of an embodiment of the present application, an electronic device is provided, comprising: a first shell, a second shell, a flexible screen and a hinge mechanism as described in any one of the first aspects; the first shell is detachably connected to the first swing arm, and the second shell is detachably connected to the second swing arm; the first shell includes a first surface, the second shell includes a second surface, the hinge mechanism includes a third surface located on the side of the inner shaft away from the rotating assembly, the flexible screen continuously covers the first surface, the third surface and the second surface, and the flexible screen is fixedly connected to the first surface of the first shell and the second surface of the second shell, respectively.

[0058] In one possible implementation, the hinge mechanism includes a decorative cover; when the electronic device is flattened, the decorative cover is hidden inside the first shell and the second shell; when the electronic device is folded, the decorative cover is exposed outside the first shell and the second shell to fill the gap between the first shell and the second shell.

[0059] That is to say, no matter the electronic device is in a folded state or in a flattened state, from the appearance of the electronic device, the first shell and the second shell are seamlessly closed, thereby improving the appearance of the display device.

[0060] In a possible implementation, the electronic device includes a mobile terminal, for example, a foldable mobile phone, a foldable tablet, a foldable notebook, a foldable e-book, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] Figure 1 A schematic diagram of a folding structure of an electronic device provided in an embodiment of the present application;

[0062] Figure 2 A schematic diagram of a folding structure of another electronic device provided in an embodiment of the present application;

[0063] Figure 3 A schematic diagram of the structure of a rotating shaft mechanism according to an embodiment of the present application;

[0064] Figure 4A A state diagram of a rotating shaft mechanism provided in an embodiment of the present application when it is in a flattened state;

[0065] Figure 4B A state diagram of a rotating shaft mechanism provided in an embodiment of the present application when in a folded state;

[0066] Figure 5 An exploded diagram of a rotating shaft mechanism provided in an embodiment of the present application;

[0067] Figure 6 A schematic diagram of the structure of a rotating assembly provided in an embodiment of the present application;

[0068] Figure 7 A schematic diagram of the structure of a rotating member and a flat plate provided in an embodiment of the present application;

[0069] Figure 8 A partial enlarged view of a linkage structure provided in an embodiment of the present application;

[0070] Fig.9A An intention of a matching process of a translation part and a rotation part provided in an embodiment of the present application;

[0071] Fig. 9B Another intention of the matching process of the translation part and the rotation part provided in the embodiment of the present application;

[0072] Fig. 9C Another intention of the matching process of the translation part and the rotation part provided in the embodiment of the present application;

[0073] Fig.10 A state diagram of a first damping member when a rotating shaft mechanism provided in an embodiment of the present application is in a flattened state;

[0074] Fig.11 When a rotating shaft mechanism provided in an embodiment of the present application is in a flattened state, Fig.10 The damping principle structure diagram of the first damping member shown;

[0075] Fig.12 A state diagram of a first damping member when a rotating shaft mechanism provided in an embodiment of the present application is in a folded state;

[0076] Fig.13 A method provided in the embodiment of the present application Fig.12 The damping principle structure diagram of the first damping member shown;

[0077] Fig.14 A damping principle structure diagram of a first damping member when a rotating shaft mechanism provided in an embodiment of the present application is in an intermediate angle state;

[0078] Fig.15 A schematic diagram of the structure of an inner shaft provided in an embodiment of the present application;

[0079] Fig.16 A schematic diagram of a structure in a flattened state after an inner shaft and a rotating assembly are assembled according to an embodiment of the present application;

[0080] Fig.17 A schematic diagram of a structure in a folded state after an inner shaft and a rotating assembly are assembled according to an embodiment of the present application;

[0081] Fig.18 A schematic diagram of the structure of an inner shaft provided in an embodiment of the present application;

[0082] Fig.19A A schematic diagram of the structure of an outer shaft provided in an embodiment of the present application;

[0083] Fig.19B A schematic diagram of the coordination of an inner shaft, an outer shaft, and a damping member provided in an embodiment of the present application;

[0084] Fig. 20 A schematic diagram of the structure of an inner shaft, a rotating assembly, and an outer shaft after being assembled according to an embodiment of the present application;

[0085] Fig.21 An exploded diagram of an electronic device provided in an embodiment of the present application;

[0086] Fig. 22 A schematic diagram of a use state of an electronic device provided in an embodiment of the present application;

[0087] Fig.23 A schematic diagram of another electronic device in use provided by an embodiment of the present application;

[0088] Fig.24 A schematic diagram of the usage status of another electronic device provided in an embodiment of the present application.

[0089] Reference numerals:

[0090] 1- Electronic equipment;

[0091] 11-first housing; 12-second housing; 13-third housing; 14-first rotating shaft mechanism; 15-second rotating shaft mechanism;

[0092] 2- Rotating shaft mechanism;

[0093] 20 - inner shaft;

[0094] 21-first arc-shaped protrusion; 22-second arc-shaped protrusion; 23-third arc-shaped protrusion; 24-fourth arc-shaped protrusion; 25-fifth arc-shaped protrusion; 26-sixth arc-shaped protrusion; 27-shaft section; 20a-first assembly opening; 20b-end appearance member; 20c-first guide portion; 20c1-first guide groove; 20c2-first guide protrusion; 20d-second guide portion; 20e-first limiting portion; 20f-second limiting portion; 20h-first matching portion; 20h1-first cam matching portion; 20h2-first elastic member matching portion; 20i-second matching portion; 20j-first connecting portion;

[0095] 30 - external shaft;

[0096] 31-first arc-shaped recessed portion; 32-second arc-shaped recessed portion; 33-third arc-shaped recessed portion; 34-fourth arc-shaped recessed portion; 35-fifth arc-shaped recessed portion; 36-sixth arc-shaped recessed portion; 30a-second assembly opening; 30b-end matching piece; 30c-first translation piece matching portion; 30d-second translation piece matching portion; 30e-third limiting portion; 30f-fourth limiting portion; 30h-third matching portion; 30i-fourth matching portion; 30j-second connecting portion;

[0097] U1-first arc groove; U2-second arc groove;

[0098] 40-rotating assembly;

[0099] 40A-first swing arm; 40B-second swing arm; 41-first rotating member; 411-first protrusion; 42-second rotating member; 421-second protrusion; 422-second cam; 43-third rotating member; 431-first cam; 44-fourth rotating member; 45-first plate; 46-second plate; 47-linkage structure; 471-first translation member; 471a-groove; 4711-first recessed portion; 472-second translation member; 472a-groove; 4721-second recessed portion; 473-rotating member; 48-fifth rotating member; 49-sixth rotating member; 40a-third assembly opening;

[0100] 50-Decorative cover;

[0101] 60-first damping member;

[0102] 61 - first integrated cam; 62 - first elastic portion; 63 - first pin shaft; 64 - first gasket; 65 - second gasket;

[0103] 70- second damping member;

[0104] 3- Display screen;

[0105] 301-Part 1; 302-Part 2; 303-Part 3; 304-Part 4; 305-Part 5. DETAILED DESCRIPTION

[0106] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0107] In the following, the terms "second", "first", etc. are used only for convenience of description and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "second", "first", etc. may explicitly or implicitly include one or more of the feature. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0108] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left" and "right" may be defined including but not limited to the orientation relative to the schematic placement of the components in the drawings. It should be understood that these directional terms may be relative concepts, which are used for relative description and clarification, and may change accordingly according to changes in the orientation of the components in the drawings.

[0109] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. In addition, the term "coupled" can be a direct electrical connection or an indirect electrical connection through an intermediate medium. The term "contact" can be a direct contact or an indirect contact through an intermediate medium.

[0110] In the embodiments of the present application, "and / or" describes the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B may be singular or plural. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0111] The embodiment of the present application provides an electronic device, which is a device with a foldable screen function. For example, the electronic device is a consumer electronic product, a vehicle-mounted electronic product, etc. Among them, consumer electronic products are such as mobile phones, tablet computers (pad), laptops, e-readers, personal computers (personal computers, PCs), personal digital assistants (personal digital assistants, PDAs), desktop displays, smart wearable products (for example, smart watches, smart glasses, smart bracelets), virtual reality (virtual reality, VR) devices, augmented reality (augmented reality, AR) devices, cameras, etc. Vehicle-mounted electronic products are such as vehicle-mounted navigators, vehicle-mounted high-density digital video discs (digital video discs, DVDs), etc. The embodiment of the present application does not impose any special restrictions on the specific form of the above-mentioned electronic devices.

[0112] Figure 1 and Figure 2 A schematic diagram of a folding structure of an electronic device provided in an embodiment of the present application.

[0113] In some embodiments, Figure 1 As shown, the electronic device 1 provided in the embodiment of the present application is a two-fold screen electronic device.

[0114] like Figure 1 As shown, the electronic device 1 includes a first shell 11, a second shell 12 and a first hinge mechanism 14. The first shell 11 and the second shell 12 are spaced apart. The first hinge mechanism 14 is located between the first shell 11 and the second shell 12 and is connected to the first shell 11 and the second shell 12 respectively.

[0115] The first housing 11 and / or the second housing 12 may be a middle frame structure of the electronic device 1. For example, the first housing 11 and / or the second housing 12 may respectively form an installation space for installing components such as batteries, circuit boards, cameras, earphones, receivers, buttons, batteries, etc. of the electronic device. Among them, the circuit board may integrate electronic components such as the main controller, storage unit, antenna module, power management module, etc. of the electronic device, and the battery may power electronic components such as the circuit board, receiver, speaker, camera, etc.

[0116] In addition, the first shell 11 and the second shell 12 may be of equal thickness or unequal thickness, which is not limited in the embodiment of the present application.

[0117] In a possible design, both the first shell 11 and the second shell 12 may be provided with installation spaces, and the electronic components of the electronic device 1 are distributed in the shells on both sides.

[0118] In another possible design, only the first housing 11 may be provided with an installation space, and the electronic components of the electronic device 1 may be concentratedly distributed in the first housing 11. Alternatively, both the first housing 11 and the second housing 12 may be provided with installation spaces, but most of the electronic components of the electronic device 1 are provided in the first housing 11, and a small part is provided in the second housing 12, so that the second housing 12 is lighter and can be folded and unfolded more conveniently.

[0119] In other embodiments, Figure 2 As shown, the electronic device 1 provided in the embodiment of the present application is a three-fold screen electronic device.

[0120] like Figure 2 As shown, the electronic device 1 includes a first housing 11 , a second housing 12 , a third housing 13 , a first rotating shaft mechanism 14 and a second rotating shaft mechanism 15 .

[0121] The first housing 11 and the second housing 12 are spaced apart, the first shaft mechanism 14 is located between the first housing 11 and the second housing 12, and is connected to the first housing 11 and the second housing 12 respectively. The second shaft mechanism 15 is located between the second housing 12 and the third housing 13, and is connected to the second housing 12 and the third housing 13 respectively.

[0122] The first hinge mechanism 14 and the second hinge mechanism 15 are important components of the foldable electronic device. The dimensions of the first hinge mechanism 14 and the second hinge mechanism 15 in the thickness direction of the electronic device 1 directly affect the thickness of the entire electronic device 1 .

[0123] Figure 3 A schematic diagram of the structure of a rotating shaft mechanism according to an embodiment of the present application.

[0124] In some embodiments, Figure 3 As shown, the shaft mechanism 2 includes an inner shaft 20, an outer shaft 30 and a rotating assembly 40. The rotating assembly 40 is located between the inner shaft 20 and the outer shaft 30. The rotating assembly 40 includes a plurality of gears meshing in sequence, and the axial direction of the gears is parallel to the rotation axis of the shaft mechanism 2.

[0125] Due to the influence of the gear diameter, the thickness of the rotating shaft mechanism 2 cannot be made relatively thin, thereby affecting the thickness of the entire electronic device 1 and failing to meet the demand for thinness and lightness.

[0126] Figure 4A and Figure 4B The cross-sectional schematic diagrams of the rotating shaft mechanism provided by the present application in two different states are shown. Figure 4A The diagram shows the state of the rotating shaft mechanism when it is in a flattened state. Figure 4B The diagram shows the state of the rotating shaft mechanism when it is in a folded state. Figure 5An exploded view of a rotating shaft mechanism provided in an embodiment of the present application.

[0127] The present application embodiment provides a rotating shaft mechanism 2, and also refers to Figure 4A , Figure 4B and Figure 5 The rotating shaft mechanism 2 provided in the embodiment of the present application includes an inner shaft 20 and a rotating assembly 40. In some embodiments, the rotating shaft mechanism 2 also includes an outer shaft 30 and a decorative cover 50. The inner shaft 20, the rotating assembly 40, the outer shaft 30 and the decorative cover 50 are arranged in sequence along the thickness direction (first direction Z) of the rotating shaft mechanism 2.

[0128] like Figure 5 As shown, the direction in which the inner shaft 20, the rotating assembly 40, the outer shaft 30 and the decorative cover 50 are stacked is the thickness direction of the rotating shaft mechanism 2. In the embodiment of the present application, the thickness direction of the rotating shaft mechanism 2 is referred to as the first direction Z, the length direction of the rotating shaft mechanism 2 (that is, the direction of the rotation axis of the rotating shaft mechanism 2) is referred to as the third direction Y, and the width direction of the rotating shaft mechanism 2 is referred to as the second direction X. The first direction Z is perpendicular to the extension direction Y of the rotating shaft.

[0129] The inner shaft 20 and the outer shaft 30 are separately provided and detachably connected, for example, the inner shaft 20 and the outer shaft 30 are connected by screws. The rotating assembly 40 is located on the inner shaft 20 and the outer shaft 30 and is respectively provided with assembly openings. The rotating assembly 40 is located between the inner shaft 20 and the outer shaft 30, and a matching assembly opening is also provided on the rotating assembly 40. Figure 5 The assembly method shown in the figure is only a schematic diagram and is not intended to be limiting. The inner shaft 20 and the outer shaft 30 are arranged separately, which can facilitate the arrangement and assembly connection of the rotating assembly 40.

[0130] Regarding the rotating assembly 40 included in the rotating shaft mechanism 2, the rotating assembly 40 is arranged between the inner shaft 20 and the outer shaft 30. In some embodiments, along the third direction Y, one rotating assembly 40 provided in the embodiment of the present application may be arranged, or multiple rotating assemblies 40 provided in the embodiment of the present application may be arranged. Figure 5 In the figure, three rotating components 40 are provided between the inner shaft 20 and the outer shaft 30 for illustration.

[0131] Figure 6 A schematic diagram of the structure of a rotating assembly provided in an embodiment of the present application.

[0132] In some embodiments, Figure 6 As shown, the rotating assembly 40 includes a first swing arm 40A, a second swing arm 40B and a linkage structure 47 .

[0133] The first swing arm 40A and the second swing arm 40B can rotate relative to or opposite to each other along the rotation axis of the hinge mechanism 2, so that the hinge mechanism 2 can be switched between the flattened state and the folded state. Figure 6 From a middle perspective, the shaft mechanism 2 is in a flattened state, and when the first swing arm 40A and the second swing arm 40B rotate relative to each other, the shaft mechanism 2 can be switched to a folded state. Conversely, when the shaft mechanism 2 is in a folded state, the first swing arm 40A and the second swing arm 40B rotate in opposite directions to switch the shaft mechanism 2 to a flattened state.

[0134] The rotation axis of the rotating shaft mechanism 2 is parallel to the third direction Y. The rotation axis of the rotating shaft mechanism 2 is, for example, the center line of the rotating shaft mechanism 2 .

[0135] In some embodiments, the first swing arm 40A includes a first rotating member 41 and a first flat plate 45, and the first rotating member 41 and the first flat plate 45 are fixedly connected. For example, the first rotating member 41 and the first flat plate 45 are an integrally formed structure.

[0136] The second swing arm 40B includes a second rotating member 42 and a second flat plate 46, and the second rotating member 42 and the second flat plate 46 are fixedly connected. For example, the second rotating member 42 and the second flat plate 46 are an integrally formed structure.

[0137] Along the third direction Y, the first rotating member 41 and the second rotating member 42 are located on both sides of the linkage structure 47. Exemplarily, the first rotating member 41 and the second rotating member 42 can be symmetrically arranged on opposite sides of the linkage structure 47, or the first rotating member 41 and the second rotating member 42 can be diagonally arranged on opposite sides of the linkage structure 47.

[0138] Along the second direction X, the first plate 45 and the second plate 46 are located on both sides of the linkage structure 47. Exemplarily, the first plate 45 and the second plate 46 may be symmetrically arranged on both sides of the linkage structure 47.

[0139] The first plate 45 can drive the first rotating member 41 to rotate relative to the inner shaft 20, so that the first swing arm 40A can rotate relative to the inner shaft 20. The second plate 46 can drive the second rotating member 42 to rotate relative to the inner shaft 20, so that the second swing arm 40B can rotate relative to the inner shaft 20.

[0140] Please continue to refer to Figure 6 In some embodiments, the first swing arm 40A further includes a third rotating member 43, and the third rotating member 43 is fixedly connected to the first flat plate 45. For example, the third rotating member 43 and the first flat plate 45 are an integrally formed structure.

[0141] The third rotating member 43 and the first rotating member 41 are arranged on both sides of the linkage structure 47 opposite to each other. When the shaft mechanism 2 is in the flattened state, the third rotating member 43 and the second rotating member 42 are arranged side by side along the second direction X and are located on the second side of the linkage structure 47 .

[0142] The first rotating member 41 includes a first end and a second end, and the fourth rotating member 44 includes a first end and a second end. When the rotating shaft mechanism 2 is in a flattened state, the first end of the first rotating member 41 and the first end of the fourth rotating member 44 are adjacently arranged, the second end of the first rotating member 41 facing away from the fourth rotating member 44 is connected to the first flat plate 45, and the second end of the fourth rotating member 44 facing away from the first rotating member 41 is connected to the second flat plate 46.

[0143] The second swing arm 40B further includes a fourth rotating member 44 , and the fourth rotating member 44 is fixedly connected to the second flat plate 46 . For example, the fourth rotating member 44 and the second flat plate 46 are an integrally formed structure.

[0144] The fourth rotating member 44 and the second rotating member 42 are arranged opposite to each other on both sides of the linkage structure 47 . When the shaft mechanism 2 is in the flattened state, the first rotating member 41 and the fourth rotating member 44 are arranged side by side along the second direction X and are located on the first side of the linkage structure 47 .

[0145] The third rotating member 43 includes a first end and a second end, and the second rotating member 42 includes a first end and a second end. When the rotating shaft mechanism 2 is in a flattened state, the first end of the third rotating member 43 and the first end of the second rotating member 42 are adjacently arranged, and the second end of the third rotating member 43 is away from the second rotating member 42 and is connected to the first flat plate 45, and the second end of the second rotating member 42 is away from the third rotating member 43 and is connected to the second flat plate 46.

[0146] The first plate 45 can also drive the third rotating member 43 to rotate relative to the inner shaft 20, and the second plate 46 can also drive the fourth rotating member 44 to rotate relative to the inner shaft 20. The first rotating member 41, the second rotating member 42, the third rotating member 43 and the fourth rotating member 44 can respectively rotate relative to the inner shaft 20. In some embodiments, the first rotating member 41 and the third rotating member 43 rotate synchronously, and the fourth rotating member 44 and the second rotating member 42 rotate synchronously.

[0147] For example, when the hinge mechanism 2 rotates from the flattened state to the folded state, the first rotating member 41 and the third rotating member 43 rotate from Figure 4A Turn counterclockwise to Figure 4B Synchronously, the second rotating member 42 and the fourth rotating member 44 are Figure 4A Turn clockwise to Figure 4B Status shown.

[0148] When the shaft mechanism 2 rotates from the folded state to the flattened state, the first rotating member 41 and the third rotating member 43 rotate from Figure 4B Turn clockwise to Figure 4A Synchronously, the second rotating member 42 and the fourth rotating member 44 are Figure 4B Turn counterclockwise to Figure 4A Status shown.

[0149] In some embodiments, Figure 6 As shown, the first swing arm 40A further includes a fifth rotating member 48, and the fifth rotating member 48 is fixedly connected to the first flat plate 45. For example, the fifth rotating member 48 and the first flat plate 45 are an integrally formed structure.

[0150] The second swing arm 40B further includes a sixth rotating member 49, and the sixth rotating member 49 is fixedly connected to the second flat plate 46. For example, the sixth rotating member 49 and the second flat plate 46 are an integrally formed structure.

[0151] The fifth rotating member 48 is arranged on the side of the third rotating member 43 away from the linkage structure 47, and the sixth rotating member 49 is arranged on the side of the second rotating member 42 away from the linkage structure 47. When the shaft mechanism 2 is in the flattened state, the fifth rotating member 48 and the sixth rotating member 49 are arranged side by side along the second direction X.

[0152] The end of the fifth rotating member 48 away from the sixth rotating member 49 is connected to the first plate 45, and the first plate 45 can also drive the fifth rotating member 48 to rotate relative to the inner shaft 20. The end of the sixth rotating member 49 away from the fifth rotating member 48 is connected to the second plate 46, and the second plate 46 can also drive the sixth rotating member 49 to rotate relative to the inner shaft 20.

[0153] In some embodiments, the first plate 45 drives the first rotating member 41 , the third rotating member 43 and the fifth rotating member 48 to rotate synchronously, and the second plate 46 drives the second rotating member 42 , the fourth rotating member 44 and the sixth rotating member 49 to rotate synchronously.

[0154] Figure 7 A schematic structural diagram of a rotating member and a flat plate provided in an embodiment of the present application.

[0155] In some embodiments, Figure 7 As shown, the first rotating member 41, the third rotating member 43, the fifth rotating member 48 and the first plate 45 are an integrally formed structure, and the fourth rotating member 44, the second rotating member 42, the sixth rotating member 49 and the second plate 46 are an integrally formed structure.

[0156] In some embodiments, assembly openings are respectively reserved on the first rotating member 41, the third rotating member 43, the fifth rotating member 48, the first plate 45, the second rotating member 42, the fourth rotating member 44, the sixth rotating member 49 and the second plate 46. The embodiment of the present application does not limit the shape and setting position of the assembly openings, which can be set in combination with the assembly condition of the rotating shaft mechanism 2. Figure 7 The hole-shaped assembly openings shown in the figure are only for illustration and are not intended to be limiting.

[0157] In some embodiments, Figure 7 As shown, the first plate 45 and the second plate 46 are sheet structures, and the first plate 45 and the second plate 46 extend out of the convex part to connect with the rotating member. Of course, the first plate 45 and the second plate 46 can also be provided with notches to meet the needs of different application scenarios.

[0158] For reference Figure 6 and Figure 7 In some embodiments, the rotating component 40 has an upper surface a1 and a lower surface a2 . The upper surface a1 is a surface of the rotating component 40 facing the inner shaft 20 , and the lower surface a2 is a surface of the rotating component 40 facing the outer shaft 30 . Figure 6 and Figure 7 The diagram is illustrated from the upper surface a1 side and the lower surface a2 side of the rotating assembly 40 .

[0159] Next, the structure of the linkage structure 47 is described with an example.

[0160] Figure 8 A partially enlarged view of a linkage structure provided in an embodiment of the present application.

[0161] like Figure 8 As shown, in some embodiments, the linkage structure 47 includes a rotating member 473 , a first translation member 471 and a second translation member 472 .

[0162] The first translation member 471 is slidably connected relative to the inner shaft 20 and is clamped relative to the first swing arm 40A. The second translation member 472 is slidably connected relative to the inner shaft 20 and is clamped relative to the second swing arm 40B. The rotating member 473 connects the first translation member 471 and the second translation member 472 and is rotatably connected relative to the inner shaft 20. The rotation axis of the rotating member 473 is parallel to the first direction Z.

[0163] When the first swing arm 40A rotates, the first translation member 471 is driven to slide in a direction parallel to the second direction X. When the second swing arm 40B rotates, the second translation member 472 is driven to slide in a direction parallel to the second direction X. And no matter the first swing arm 40A and the second swing arm 40B rotate relative to each other or rotate in opposite directions, the sliding directions of the first translation member 471 and the second translation member 472 are always opposite. For example, during the transformation of the rotating shaft mechanism 2 from the flattened state to the folded state, the first swing arm 40A and the second swing arm 40B rotate relative to each other along the rotation axis of the rotating shaft mechanism to drive the first translation member 471 and the second translation member 472 to slide in the opposite direction in a direction parallel to the second direction X. Similarly, during the transformation of the rotating shaft mechanism 2 from the folded state to the flattened state, the first swing arm 40A and the second swing arm 40B rotate relative to each other along the rotation axis of the rotating shaft mechanism to drive the first translation member 471 and the second translation member 472 to slide in the opposite direction in a direction parallel to the second direction X. When the first translation member 471 and the second translation member 472 slide, they can drive the rotating member 473 to rotate, and the rotating member 473 can synchronize the sliding of the first translation member 471 and the second translation member 472 .

[0164] The rotation axis of the rotating member 473 is parallel to the first direction Z, or it can be understood that the rotating member 473 rotates in a plane parallel to the second direction X and the third direction Y.

[0165] In some embodiments, the first translation member 471 is located on a side of the rotating member 473 close to the first rotating member 41, and the first translation member 471 is connected to the first rotating member 41, and the first rotating member 41 can drive the first translation member 471 to slide in a direction parallel to the second direction X. The first flat plate 45 drives the first rotating member 41 to rotate, thereby driving the first translation member 471 to slide, so that the first swing arm 40A drives the first translation member 471 to slide.

[0166] The second translation member 472 is located on the side of the rotating member 473 close to the second rotating member 42, and the second translation member 472 is connected to the second rotating member 42, and the second rotating member 42 can drive the second translation member 472 to slide in a direction parallel to the second direction X. The second flat plate 46 drives the second rotating member 42 to rotate, thereby driving the second translation member 472 to slide, so that the second swing arm 40B drives the second translation member 472 to slide.

[0167] For example, when the shaft mechanism 2 rotates from the flattened state to the folded state, Figure 8 In the perspective shown, the first plate 45 drives the first rotating member 41 to rotate counterclockwise, and the first rotating member 41 drives the first translation member 471 to move from left to right. The second plate 46 drives the second rotating member 42 to rotate clockwise, and the second rotating member 42 drives the second translation member 472 to move from right to left.

[0168] When the hinge mechanism 2 rotates from the folded state to the flattened state, the first plate drives the first rotating member 41 to rotate clockwise, and the first rotating member 41 drives the first translation member 471 to move from right to left. The second plate 46 drives the second rotating member 42 to rotate counterclockwise, and the second rotating member 42 drives the second translation member 472 to move from left to right.

[0169] During the rotation of the shaft mechanism 2 , the first rotating member 41 and the second rotating member 42 always rotate in a counterclockwise direction, thereby driving the first translation member 471 and the second translation member 472 to always move in parallel and in opposite directions.

[0170] The following is a schematic illustration of the connection between the first translation member 471 and the first rotation member 41 , and the connection between the second translation member 472 and the second rotation member 42 .

[0171] Fig.9A , Fig. 9B and Fig. 9C An embodiment of the present application provides an intention of a matching process of a translation part and a rotation part.

[0172] like Fig.9A As shown, in some embodiments, the first translation member 471 includes a first recessed portion 4711 that is recessed away from the first rotation member 41, and the first rotation member 41 includes a first protruding portion 411 that protrudes toward the first translation member 471. The first protruding portion 411 extends into the first recessed portion 4711 and is connected with the first recessed portion 4711, so that the first translation member 471 is driven to slide during the rotation of the first rotation member 41.

[0173] The first protrusion 411 and other parts of the first translation member 471 may be an integrally formed structure, or the first protrusion 411 and other parts of the first translation member 471 may be separate structures that are fixedly connected, which is not limited in the embodiment of the present application.

[0174] The embodiment of the present application does not limit the specific structure of the first protrusion 411, and the first protrusion 411 may be a regular structure or an irregular structure. For example, the first protrusion 411 is a pin, and the first recessed portion 4711 is a groove matching the pin.

[0175] After the first protrusion 411 is engaged with the first recess 4711 , the surface of the first protrusion 411 may contact the inner wall of the first recess 4711 , or there may be a gap between them, which is not limited in the embodiment of the present application.

[0176] The first convex portion 411 and the first concave portion 4711 cooperate with each other to achieve mechanical connection between the first translation member 471 and the first rotation member 41 , which has a simple structure, a simple process and is easy to implement.

[0177] like Fig.9A As shown, in some embodiments, the first protrusion 411 is located at an end of the first rotating member 41 away from the first flat plate 45. When the shaft mechanism 2 is in the flattened state, the first protrusion 411 is disposed close to the fourth rotating member 44 and protrudes toward the first translation member 471.

[0178] Correspondingly, the first recessed portion 4711 is located at one end of the first translation member 471 close to the first plate 45 , and the main portion of the first translation member 471 is located at one end of the first recessed portion 4711 close to the second plate 46 .

[0179] Based on this structure, Fig.9A From a middle perspective, during the folding process of the hinge mechanism 2, the first flat plate 45 drives the first rotating member 41 to rotate counterclockwise, thereby driving the first translation member 471 to move from the side where the second flat plate 46 is located to the side where the first flat plate 45 is located. Fig. 9B As shown, as the shaft mechanism 2 rotates, the first translation member 471 gradually slides. Fig. 9C As shown, when the rotating shaft mechanism 2 is rotated to the folded state, the first translation member 471 slides to the side close to the first flat plate 45 .

[0180] By setting the first protrusion 411 at the inner end of the first rotating member 41 and the first recessed portion 4711 at the outer end of the first translation member 471, the first translation member 471 can move a larger amount during the folding process of the hinge mechanism 2, so that the full-angle rotation of the first rotating member 41 can be achieved with a more sophisticated structure, and the space requirement on the second direction X of the hinge mechanism 2 is relatively small, which helps to realize the sophistication of the hinge mechanism 2.

[0181] Accordingly, in some embodiments, Fig.9A As shown, the second translation member 472 includes a second recessed portion 4721 that is recessed away from the second rotation member 42, and the second rotation member 42 includes a second protruding portion 421 that protrudes toward the second translation member 472. The second protruding portion 421 extends into the second recessed portion 4721 and is connected with the second recessed portion 4721, so that the second translation member 472 is driven to slide during the rotation of the second rotation member 42.

[0182] The second protrusion 421 and other parts of the second translation member 472 may be an integrally formed structure, or the second protrusion 421 and other parts of the second translation member 472 may be separate structures that are fixedly connected, which is not limited in the embodiment of the present application.

[0183] The embodiment of the present application does not limit the specific structure of the second protrusion 421, and the second protrusion 421 may be a regular structure or an irregular structure. For example, the second protrusion 421 is a pin, and the second recessed portion 4721 is a groove matching the pin.

[0184] After the second protrusion 421 is engaged with the second recess 4721 , the surface of the second protrusion 421 may contact the inner wall of the second recess 4721 , or there may be a gap between them, which is not limited in the embodiment of the present application.

[0185] The second convex portion 421 and the second concave portion 4721 cooperate with each other to achieve mechanical connection between the second translation member 472 and the second rotation member 42 , which has a simple structure, a simple process and is easy to implement.

[0186] like Fig.9A As shown, in some embodiments, the second protrusion 421 is located at the end of the second rotating member 42 away from the second flat plate 46, and the second recessed portion 4721 is located at the end of the second translation member 472 close to the second flat plate 46. When the shaft mechanism 2 is in the flattened state, the second protrusion 421 is arranged close to the third rotating member 43 and protrudes toward the second translation member 472.

[0187] Correspondingly, the second recessed portion 4721 is located at one end of the second translation member 472 close to the second plate 46 , and the main portion of the second translation member 472 is located at one end of the second recessed portion 4721 close to the first plate 45 .

[0188] Based on this structure, Fig.9A From a middle perspective, during the folding process of the hinge mechanism 2, the second flat plate 46 drives the second rotating member 42 to rotate clockwise, thereby driving the second translation member 472 to move from the side where the first flat plate 45 is located to the side where the second flat plate 46 is located. Fig. 9B As shown, as the shaft mechanism 2 rotates, the second translation member 472 gradually slides. Fig. 9C As shown, when the rotating shaft mechanism 2 is rotated to the folded state, the second translation member 472 slides to the side close to the second flat plate 46 .

[0189] By arranging the second protrusion 421 at the inner end of the second rotating member 42 and the second recessed portion 4721 at the outer end of the second translation member 472, the second translation member 472 can move a larger amount during the folding process of the hinge mechanism 2, so that the full-angle rotation of the second rotating member 42 can be achieved with a more sophisticated structure, and the space requirement on the second direction X of the hinge mechanism 2 is relatively small, which helps to realize the sophistication of the hinge mechanism 2.

[0190] like Fig.9A As shown, in some embodiments, the rotating member 473 includes a gear, the first translating member 471 includes a first rack, and the second translating member 472 includes a second rack, and the first rack and the second rack are respectively used to mesh with the gear.

[0191] The gear rack structure is adopted to realize the synchronization of the rotating member with the first translation member 471 and the second translation member 472, which has a simple structure and is easy to realize.

[0192] The embodiment of the present application provides a rotating shaft mechanism 2, and the linkage structure 47 includes a first translation member 471, a second translation member 472, and a rotating member 473. The first translation member 471 and the second translation member 472 always move along the width direction (second direction X) of the rotating shaft mechanism 2. The dimension requirement of the first translation member 471 and the second translation member 472 in the thickness direction (first direction Z) of the rotating shaft mechanism 2 is the dimension of the thickness of the first translation member 471 and the second translation member 472 itself. Synchronously, the axial direction of the rotating member 473 is the thickness direction of the rotating shaft mechanism 2. In other words, the rotating member 473 is placed horizontally in the rotating shaft mechanism 2. Then, the dimension requirement of the rotating member 473 in the thickness direction of the rotating shaft mechanism 2 is also the thickness of the rotating member 473 itself along the axial direction. Compared with the radial direction of the rotating part in the linkage structure being parallel to the first direction Z, and the thickness requirement of the linkage structure being at least the outer diameter of the linkage structure, the thickness requirement of the linkage structure 47 provided in the embodiment of the present application is significantly reduced, and is adapted to the flat space of the rotating shaft mechanism 2. The structure is simple, the void is small, and the thickness of the rotating shaft mechanism 2 is thin.

[0193] When the hinge mechanism 2 provided in the present application is folded, it may be necessary for the hinge mechanism 2 to hover at a certain angle to enhance the user experience. In some embodiments, the hinge mechanism 2 provided in the present application also includes a damping structure. For example, when the hinge mechanism 2 is in a flattened state, a flattening force needs to be applied to the first flat plate 45 and the second flat plate 46 through the damping structure so that the hinge mechanism 2 remains in the flattened state. For another example, when the hinge mechanism 2 is in a closed state, a closing force needs to be applied to the first flat plate 45 and the second flat plate 46 through the damping structure so that the hinge mechanism 2 remains in a closed state.

[0194] Please refer back to Figure 6 In some embodiments, the rotating assembly 40 further includes a first damping member 60 , which is located on a side of the second rotating member 42 and the third rotating member 43 away from the linkage structure 47 , and the first damping member 60 abuts against the second rotating member 42 and the third rotating member 43 .

[0195] Alternatively, it can be understood that the first damping member 60 is located between the second rotating member 42 and the third rotating member 43 , and between the fifth rotating member 48 and the sixth rotating member 49 .

[0196] When the first plate 45 drives the third rotating member 43 to rotate, and the second plate 46 drives the second rotating member 42 to rotate, the first damping member 60 is used to apply resistance to the first plate 45 and the second plate 46. For example, the first damping member 60 applies resistance to the first plate 45 through the third rotating member 43, so that the first plate 45 is suspended at a certain position. The first damping member 60 simultaneously applies resistance to the second plate 46 through the second rotating member 42, so that the second plate 46 is suspended at a certain position.

[0197] By providing the first damping member 60 in the rotating assembly 40, when the first plate 45 and the second plate 46 rotate, the first damping member 60 applies resistance to the first plate 45 and the second plate 46, so that the first plate 45 and the second plate 46 can hover when rotating relative to the inner shaft 20. When the hinge mechanism 2 is applied to the electronic device 1, since the first housing 11 is fixedly connected to the first plate 45, and the second housing 12 is fixedly connected to the second plate 46, the hovering requirement during the folding process of the electronic device 1 can be met, thereby improving the user experience.

[0198] Fig.10 A state diagram of the first damping member when the rotating shaft mechanism provided in an embodiment of the present application is in a flattened state.

[0199] In some embodiments, Fig.10 As shown, the third rotating member 43 and the second rotating member 42 have a first cam 431 and a second cam 422 on the side away from the second protruding portion 421 (or the linkage structure 47 ), respectively.

[0200] Synchronously, the first damping member 60 includes a first integrated cam 61 , a first elastic portion 62 and a first pin 63 .

[0201] The first connected cam 61 is rotatably mounted on one end of the first pin shaft 63 close to the second protrusion 421 (or the linkage structure 47), and is engaged with the first cam 431 and the second cam 422. The first elastic portion 62 is sleeved on the first pin shaft 63 and is located on the side of the first connected cam 61 away from the first cam 431 and the second cam 422.

[0202] In some embodiments, the first pin shaft 63 includes a shaft portion and an end portion, the shaft portion of the first pin shaft 63 extends along the third direction Y, and the first integrated cam 61 is slidably disposed at one end of the shaft portion away from the end portion. The diameter of the shaft portion is smaller than the diameter of the first elastic portion 62, and the first elastic portion 62 is sleeved on the shaft portion. The diameter of the end portion is larger than the diameter of the first elastic portion 62, and the first elastic portion 62 is defined between the first integrated cam 61 and the end portion.

[0203] The elastic deformation direction of the first elastic portion 62 is parallel to the extension direction of the first pin 63. When the first elastic portion 62 is elastically deformed, it can apply a reverse elastic force along the third direction Y to the first connected cam 61. For example, when the first elastic portion 62 is assembled into the first damping member 60, it is in a compressed state.

[0204] The first damping member 60 may include one or more first pin shafts 63 , and each first pin shaft 63 is sleeved with a first elastic portion 62 . Fig.10 In the figure, the first damping member 60 includes four first pins 63 as an example for illustration.

[0205] By providing a plurality of first pins 63, the connected first connected cams 61 can be moved in a balanced and stable manner. In addition, since each first pin 63 is provided with a first elastic portion 62, a large extrusion force can be applied to the first cam 431 and the second cam 422, so that the first plate 45 and the second plate 46 are stably in a suspended position, thereby improving the opening and closing experience of the intermediate state.

[0206] When the first plate 45 rotates, the third rotating member 43 drives the first cam 431 to rotate, and the first cam 431 slides relative to the first integrated cam 61, applying a squeezing force to the first integrated cam 61. The first integrated cam 61 slides toward the side where the first elastic portion 62 is located, so as to apply a damping force to the first elastic portion 62. The elastic characteristics of the first elastic portion 62 apply resistance to the first plate 45 through a reverse path, so that the first plate 45 is suspended at a certain position.

[0207] Simultaneously, when the second plate 46 rotates, a damping force is applied to the first elastic portion 62 , and the first elastic portion 62 applies resistance to the second plate 46 through a reverse path, so that the second plate 46 is suspended at a certain position.

[0208] Continue to refer Fig.10 In some embodiments, the first damping member 60 further includes a first gasket 64 and a second gasket 65. The first gasket 64 and the second gasket 65 are disposed at two ends of the first elastic portion 62, and the first gasket 64 and the second gasket 65 are sleeved on the first pin 63.

[0209] For example, the first gasket 64 is disposed between the first elastic portion 62 and the first integrated cam 61 , and the second gasket 65 is disposed between the first elastic portion 62 and the end of the first pin 63 .

[0210] In some embodiments, the first damping member 60 includes multiple first pins 63, the first gasket 64 sleeved on the multiple first pins 63 can be a discrete structure or an integrally formed structure, and the second gasket 65 sleeved on the multiple first pins 63 can be a discrete structure or an integrally formed structure.

[0211] By arranging the first gasket 64 and the second gasket 65 at both ends of the first elastic portion 62 , the forces acting on the first pin shaft and the first integrated cam can be uniform.

[0212] In some embodiments, the first elastic part 62 is, for example, a spring. Using a spring as the first elastic part 62 has a simple structure and low cost.

[0213] Fig.11 When a rotating shaft mechanism provided in an embodiment of the present application is in a flattened state, Fig.10 The damping principle structure diagram of the first damping member 60 is shown.

[0214] like Fig.11 As shown, the end of the first cam 431 close to the first integrated cam 61 has a first damping surface A1 and a second damping surface A2 opposite to the first integrated cam 61, and the first integrated cam 61 has a third damping surface B1 and a fourth damping surface B2 opposite to the first cam 431. Fig.10 and Fig.11 When the third rotating member 43 drives the first cam 431 to rotate to the first position, the first damping surface A1 abuts against the third damping surface B1, and the first elastic portion 62 is in an energy storage state, thereby generating an extrusion force f1 on the first cam 431. The extrusion force f1 can cause the first cam 431 to generate a flattening force. In this case, since the first cam 431 is connected to the first flat plate 45, the first flat plate 45 will be subjected to the flattening force applied by the first cam 431, and the first flat plate 45 will maintain a suspended flattened state under the action of the flattening force.

[0215] Synchronously, the second cam 422 has a fifth damping surface and a sixth damping surface at one end close to the first connected cam 61, and the first connected cam 61 has a seventh damping surface and an eighth damping surface opposite to the second cam 422. When the second rotating member 42 drives the second cam 422 to rotate to the first position, the fifth damping surface abuts against the seventh damping surface, and the first elastic portion 62 is in an energy storage state, thereby generating an extrusion force on the second cam 422, and the extrusion force can cause the second cam 422 to generate a flattening force. In this case, since the second cam 422 is connected to the second flat plate 46, the second flat plate 46 will be subjected to the flattening force applied by the second cam 422, and the second flat plate 46 will maintain a suspended flattening state under the action of the flattening force.

[0216] Fig.12 A state diagram of the first damping member when the rotating shaft mechanism provided in an embodiment of the present application is in a folded state. Fig.13 A method provided in the embodiment of the present application Fig.12 The damping principle structure diagram of the first damping element is shown.

[0217] When the third rotating member 43 drives the first cam 431 to rotate to the second position, the second damping surface A2 abuts against the fourth damping surface B2, and the first elastic portion 62 is in an energy storage state, thereby generating an extrusion force f2 on the first cam 431, and the extrusion force f2 can generate a folding force on the first cam 431. In this case, since the first cam 431 is connected to the first flat plate 45, the first flat plate 45 will be subjected to the folding force applied by the first cam 431, and the first flat plate 45 will maintain a suspended folded state under the action of the folding force.

[0218] Synchronously, when the second rotating member 42 drives the second cam 422 to rotate to the second position, the sixth damping surface abuts against the eighth damping surface, and the first elastic portion 62 is in an energy storage state, thereby generating a squeezing force on the second cam 422, and the squeezing force can generate a folding force on the second cam 422. In this case, since the second cam 422 is connected to the second flat plate 46, the second flat plate 46 will be subjected to the folding force exerted by the second cam 422, and the second flat plate 46 will maintain a suspended folded state under the action of the folding force.

[0219] Fig.14 A damping principle structure diagram of a first damping member when a rotating shaft mechanism provided in an embodiment of the present application is in an intermediate angle state.

[0220] like Fig.14 As shown, when the third rotating member 43 drives the first cam 431 to rotate to the third position between the first position and the second position, the convex surface of the first cam 431 abuts against the convex surface of the first connected cam 61, and the first elastic part 62 is in an energy storage state, thereby generating a squeezing force f3 on the first cam 431, and the squeezing force f3 can generate a holding force for the first cam 431. In this case, since the first cam 431 is connected to the first flat plate 45, the first flat plate 45 will be subjected to the holding force applied by the first cam 431, and the first flat plate 45 will remain suspended at an angle between the folded state and the flattened state under the action of the holding force.

[0221] Synchronously, when the second rotating member 42 drives the second cam 422 to rotate to the third position between the first position and the second position, the convex surface of the second cam 422 abuts against the convex surface of the first connected cam 61, and the first elastic portion 62 is in an energy storage state, thereby generating a squeezing force on the second cam 422, and the squeezing force can generate a holding force on the second cam 422. In this case, since the second cam 422 is connected to the second flat plate 46, the second flat plate 46 will be subjected to the holding force exerted by the second cam 422, and the second flat plate 46 will remain suspended at an angle between the folded state and the flattened state under the action of the holding force.

[0222] By using the first connected cam 61 to abut against the first cam 431 and the second cam 422 , the first plate 45 and the second plate 46 can be subjected to damping force at the same time when they rotate, so that the first plate 45 and the second plate 46 are symmetrically in a suspended position.

[0223] Of course, in some embodiments, the first damping member 60 does not include the first integrated cam 61, but includes a third cam and a fourth cam, the third cam abuts against the first cam 431, and the fourth cam abuts against the second cam 422. The damping principle of the third cam and the first cam 431 is the same as Fig.11 and Fig.13The same principle is shown, and the damping principle of the fourth cam and the second cam 422 is also the same Fig.11 and Fig.13 The principle shown is the same.

[0224] In this case, the first damping member 60 includes at least two first pins 63. One first pin 63 is slidably connected to the third cam, and the other first pin 63 is slidably connected to the fourth cam.

[0225] In some embodiments, the first swing arm 40A does not include the third rotating member 43 , the second rotating member 42 has a second cam 422 on the side away from the second protrusion 421 , and the first damping member 60 abuts against the second cam 422 to apply resistance to the second plate 46 .

[0226] Please continue to refer to Figure 6 In some embodiments, the rotating assembly 40 further includes a second damping member 70 .

[0227] The second damping member 70 is slidably connected to the fifth rotating member 48 and the sixth rotating member 49 on one side close to the first damping member 60 . When the first plate 45 drives the fifth rotating member 48 to rotate and the second plate 46 drives the sixth rotating member 49 to rotate, the second damping member 70 is used to apply resistance to the first plate 45 and the second plate 46 .

[0228] In some embodiments, the structure of the second damping member 70 is the same as that of the first damping member 60, and the abutment manner of the second damping member 70 with the fifth rotating member 48 and the sixth rotating member 49 is the same as the abutment manner of the first damping member 60 with the third rotating member 43 and the second rotating member 42. Please refer to the above related description and will not be repeated here.

[0229] For example, the fifth rotating member 48 and the sixth rotating member 49 have a fifth cam and a sixth cam respectively on the side facing the first damping member 60 .

[0230] Synchronously, the second damping member 70 includes a second integrated cam, a second elastic portion and a second pin shaft.

[0231] The second connected cam is sleeved on the end of the second pin away from the first damping member 60 and abuts against the fifth cam and the sixth cam. The second elastic portion is sleeved on the second pin and located on the side of the second connected cam away from the fifth cam and the sixth cam.

[0232] In the embodiment of the present application, the inner shaft 20 and the outer shaft 30 included in the rotating shaft mechanism 2 also include a structure matching the rotating assembly 40 .

[0233] Please refer back to Figure 4A and Figure 4BIn some embodiments, the inner shaft 20 has a first arc-shaped protrusion 21 and a second arc-shaped protrusion 22 on the side facing the first rotating member 41 and the second rotating member 42, and the outer shaft 30 has a first arc-shaped recessed portion 31 and a second arc-shaped recessed portion 32 on the side facing the first rotating member 41 and the second rotating member 42.

[0234] The first arc-shaped protrusion 21 and the first arc-shaped recess 31 form a first arc-shaped groove U1, and the second arc-shaped protrusion 22 and the second arc-shaped recess 32 form a second arc-shaped groove U2. The first rotating member 41 can rotate in the first arc-shaped groove U1, and the second rotating member 42 can rotate in the second arc-shaped groove U2.

[0235] Based on this, in some embodiments, the first rotating member 41 and the second rotating member 42 are arc-shaped structures.

[0236] The embodiment of the present application does not limit the arc radii of the first arc-shaped protrusion 21 and the second arc-shaped protrusion 22 , the first arc-shaped recessed portion 31 and the second arc-shaped recessed portion 32 , and the first rotating member 41 and the second rotating member 42 , and can be set according to the size of the rotating shaft mechanism 2 .

[0237] Synchronously, in some embodiments, the inner shaft 20 has a third arc-shaped protrusion and a fourth arc-shaped protrusion on the side facing the third rotating member 43 and the fourth rotating member 44, respectively, and the outer shaft 30 has a third arc-shaped recess and a fourth arc-shaped recess. The third arc-shaped protrusion and the third arc-shaped recess form a third arc-shaped groove, and the fourth arc-shaped protrusion and the fourth arc-shaped recess form a fourth arc-shaped groove. The third rotating member 43 can rotate in the third arc-shaped groove, and the fourth rotating member 44 can rotate in the fourth arc-shaped groove.

[0238] In some embodiments, the inner shaft 20 has a fifth arc-shaped protrusion and a sixth arc-shaped protrusion on the side facing the fifth rotating member 48 and the sixth rotating member 49, respectively, and the outer shaft 30 has a fifth arc-shaped recess and a sixth arc-shaped recess. The fifth arc-shaped protrusion and the fifth arc-shaped recess form a fifth arc-shaped groove, and the sixth arc-shaped protrusion and the sixth arc-shaped recess form a sixth arc-shaped groove. The fifth rotating member 48 can rotate in the fifth arc-shaped groove, and the sixth rotating member 49 can rotate in the sixth arc-shaped groove.

[0239] The first arc-shaped groove U1, the second arc-shaped groove U2, the third arc-shaped groove, the fourth arc-shaped groove, the fifth arc-shaped groove, and the sixth arc-shaped groove can be a quarter arc, a third arc, etc. Technical personnel in this field can adapt and adjust the specific parameters of the arc-shaped grooves according to actual needs, and this application does not make specific limitations on this.

[0240] In the embodiment of the present application, the first rotating member 41 cooperates with the first arc-shaped groove U1, the third rotating member 43 cooperates with the third arc-shaped groove, and the fifth rotating member 48 cooperates with the fifth arc-shaped groove to realize the rotation of the first plate 45 relative to the inner shaft 20. The second rotating member 42 cooperates with the second arc-shaped groove U2, the fourth rotating member 44 cooperates with the fourth arc-shaped groove, and the sixth rotating member 49 cooperates with the sixth arc-shaped groove to realize the rotation of the second plate 46 relative to the inner shaft 20.

[0241] In other embodiments, the first plate 45 and the inner shaft 20, and the second plate 46 and the inner shaft 20 may be rotatably connected in other ways, such as pin connection. Then, the first rotating member 41 and the fourth rotating member 44 may be pins, for example.

[0242] The structures of the inner shaft 20 and the outer shaft 30 , and the cooperation between the inner shaft 20 and the outer shaft 30 and the rotating assembly 40 are schematically described below.

[0243] Here, the inner shaft 20 and the cooperation between the inner shaft 20 and the rotating assembly 40 are first introduced.

[0244] In some embodiments, Figure 5 As shown, the inner shaft 20 includes a first surface b1 facing away from the rotating assembly 40 and a second surface b2 facing the rotating assembly 40 .

[0245] In some embodiments, the first surface b1 of the inner shaft 20 facing away from the rotating assembly 40 is a plane.

[0246] After the hinge mechanism 2 is applied to the electronic device 1, the display screen of the electronic device 1 is arranged on the first surface b1 of the inner shaft 20. By setting the first surface b1 of the inner shaft 20 as a plane, the hinge mechanism 2 is supported by a plane during the entire folding process, which protects the display screen and improves the reliability of the screen.

[0247] Regarding the outer contour structure of the inner shaft 20, Figure 5 The outer contour of the inner shaft 20 matches the rotating assembly 40 , and the first plate 45 and the second plate 46 extend out of the inner shaft 20 . The inner shaft 20 does not affect the rotation of the first plate 45 and the second plate 46 .

[0248] Fig.15 A schematic diagram of the structure of an inner shaft provided in an embodiment of the present application. Fig.16 A schematic diagram of the structure of an inner shaft and a rotating assembly provided in an embodiment of the present application in a flattened state after being assembled. Fig.17 A schematic diagram of the structure of an inner shaft and a rotating assembly provided in an embodiment of the present application in a folded state after being assembled.

[0249] In some embodiments, in combination Fig.15 , Fig.16 as well as Fig.17 As shown, the second surface b2 of the inner shaft 20 facing the rotating component 40 has a first arc-shaped protrusion 21 and a second arc-shaped protrusion 22. The position and shape of the first arc-shaped protrusion 21 match the first rotating member 41, and the position and shape of the second arc-shaped protrusion 22 match the second rotating member 42.

[0250] The second surface b2 of the inner shaft 20 may also have a third arc-shaped protrusion 23 and a fourth arc-shaped protrusion 24 , wherein the position and shape of the third arc-shaped protrusion 23 match the third rotating member 43 , and the position and shape of the fourth arc-shaped protrusion 24 match the fourth rotating member 44 .

[0251] The second surface b2 of the inner shaft 20 may also have a fifth arc-shaped protrusion 25 and a sixth arc-shaped protrusion 26 . The position and shape of the fifth arc-shaped protrusion 25 match the fifth rotating member 48 , and the position and shape of the sixth arc-shaped protrusion 26 match the sixth rotating member 49 .

[0252] In some embodiments, the inner shaft 20 further includes a first assembly opening 20a disposed between the first arc-shaped protrusion 21 and the second arc-shaped protrusion 22, and a first assembly opening 20a disposed between the third arc-shaped protrusion 23 and the fourth arc-shaped protrusion 24. The first assembly opening 20a is used for assembly and connection with the outer shaft 30, and a third assembly opening 40a is disposed at the corresponding positions of the first rotating member 41 and the fourth rotating member 44 in the rotating assembly 40, and a third assembly opening 40a is disposed at the corresponding positions of the third rotating member 43 and the second rotating member 42. After the rotating shaft mechanism 2 is assembled, the first assembly opening 20a can extend into the third assembly opening 40a.

[0253] In some embodiments, the inner shaft 20 further includes an end appearance component 20 b , and the end appearance component 20 b is connected to the first arc-shaped protrusion 21 .

[0254] By setting the end appearance part 20b, the internal structure of the rotating shaft mechanism 2 can be covered by the inner end appearance part 20b. No matter the rotating shaft mechanism 2 is in a folded state or in an unfolded state, the internal structure is hidden, and the appearance of the whole structure is complete and the aesthetics is good.

[0255] In some embodiments, the other end of the inner shaft 20 is also provided with an end appearance member 20b. Fig.15 Not shown.

[0256] The present embodiment does not limit the structure and shape of the end appearance member 20b. Fig.15 The figure is for illustration only.

[0257] Please continue to refer to Fig.15In some embodiments, a first guide portion 20c is provided on the side of the inner shaft 20 facing the second surface b2 of the linkage structure 47, and the first guide portion 20c can guide the first translation member 471 in the linkage structure 47 to move in a direction parallel to the second direction X.

[0258] In some embodiments, a second guide portion 20d is disposed on the side of the inner shaft 20 facing the second surface b2 of the linkage structure 47 , and the second guide portion 20d can guide the second translation member 472 to move in a direction parallel to the second direction X.

[0259] By providing the first guide portion 20 c and the second guide portion 20 d , the first translation member 471 and the second translation member 472 can move linearly along the second direction X in a balanced and stable manner.

[0260] In some embodiments, the first guide portion 20c is a groove extending along the second direction X.

[0261] In some other embodiments, the first guide portion 20c is a protrusion extending along the second direction X.

[0262] In some embodiments, Fig.15 As shown, the first guide portion 20c includes a first guide groove 20c1 and a first guide protrusion 20c2 extending along the second direction X, and the first guide groove 20c1 and the first guide protrusion 20c2 are arranged in sequence along the second direction X.

[0263] By setting the first guide portion 20c to be a structure in which one portion is the first guide groove 20c1 and the other portion is the first guide protrusion 20c2, it is possible to avoid the inner shaft 20 being thinned too much at the position where the first conductive portion 20c is set, thereby affecting the rigidity of the inner shaft 20, and also to avoid affecting the first rotating member 41 from driving the first translation member 471 to slide.

[0264] Then, combined Figure 8 , Fig.15 , Fig.16 and Fig.17 As shown, a groove 471a is provided on the side of the first translation member 471 facing the first guide protrusion 20c2, and the first guide protrusion 20c2 can extend into the groove 471a. The first guide protrusion 20c2 cooperates with the groove 471a, and when the first translation member 471 moves along the second direction X, the groove 471a is sleeved on the first guide protrusion 20c2 and slides, and the first guide protrusion 20c2 plays a guiding role for the first translation member 471.

[0265] In some embodiments, the first guide groove 20c1 is disposed near the first plate 45, and is disposed adjacent to the first rotating member 41 (first arc-shaped protrusion 21) along the third direction Y. The first guide protrusion 20c2 is disposed near the second plate 46, and is disposed adjacent to the fourth rotating member 44 (fourth arc-shaped protrusion 24) along the third direction Y.

[0266] In this way, when the first rotating member 41 includes the first protrusion 411 , the first guide groove 20 c 1 does not affect the rotation of the first protrusion 411 .

[0267] In some embodiments, the surface of the groove arm of the first guide groove 20c1 close to the first arc-shaped protrusion 21 is a curved surface, and the trajectory of the curved surface matches the rotation trajectory of the first protrusion 411. In this way, the groove arm of the first guide groove 20c1 can provide support force for the first protrusion 411 to improve the stability of the first protrusion 411 when rotating, and prevent the first protrusion 411 from shaking and affecting folding.

[0268] In some embodiments, the structure of the second guide portion 20d is the same as that of the first guide portion 20c.

[0269] For example, the second guide portion 20d includes a second guide groove and a second guide protrusion extending along the second direction X. For example, the second guide groove is disposed near the second flat plate 46 and adjacent to the second rotating member 42 (the second arc-shaped protrusion 22), and the second guide protrusion is disposed near the first flat plate 45 and adjacent to the third rotating member 43 (the third arc-shaped protrusion 23).

[0270] Correspondingly, such as Figure 8 As shown, a groove 472a is provided on the side of the second translation member 472 facing the first surface a1 of the first guide portion 20c, and the second guide protrusion can extend into the groove 472a.

[0271] Please continue to refer to Fig.15 In some embodiments, a first limiting portion 20e and a second limiting portion 20f are provided on the side of the inner shaft 20 facing the second surface b2 of the linkage structure 47.

[0272] The first limiting portion 20e and the second limiting portion 20f are disposed between the first guiding portion 20c and the second guiding portion 20d. Along the second direction X, the first limiting portion 20e and the second limiting portion 20f are located on both sides of the inner shaft 20. Fig.16 and Fig.17 As shown, after the rotating assembly 40 is assembled with the inner shaft 20 , the first limiting portion 20 e and the second limiting portion 20 f are located on both sides of the rotating member 473 .

[0273] The surface of the first limiting portion 20e facing the second limiting portion 20f and the surface of the second limiting portion 20f facing the first limiting portion 20e are both arc surfaces, that is, the surfaces of the first limiting portion 20e and the second limiting portion 20f facing the rotating member 473 are arc surfaces. The first limiting portion 20e and the second limiting portion 20f match the rotation track of the rotating member 473, and the rotating member 473 is limited therebetween to limit the rotation track of the rotating member 473.

[0274] The arc surface of the first limiting portion 20e and the second limiting portion 20f facing the rotating member 473 can be a quarter arc surface, or a third arc surface, or an arc surface of other curvatures.

[0275] in addition, Fig.15 The shapes of the first limiting portion 20e and the second limiting portion 20f shown in the figure are only for illustration and are not limited in any way, as long as the surfaces of the first limiting portion 20e and the second limiting portion 20f facing the rotating member 473 match the rotation trajectory of the rotating member 473.

[0276] Please continue to refer to Figure 15-17 In some embodiments, a first assembly opening 20a is provided between the first limiting portion 20e and the second limiting portion 20f, and the rotating member 473 is sleeved on the first assembly opening 20a.

[0277] The outer contour of the first assembly opening 20a at this position matches the shape of the reserved hole of the rotating member 473. For example, the first assembly opening 20a is a cylindrical hole. After the assembly screw is inserted into the first assembly opening 20a, the rotating member 473 is sleeved on the assembly screw.

[0278] In some embodiments, a first matching portion 20h is disposed on the side of the inner shaft 20 facing the second surface b2 of the linkage structure 47, and the first damping member 60 is disposed in cooperation with the first matching portion 20h.

[0279] For example, the first matching portion 20h includes a first cam matching portion 20h1 and a first elastic member matching portion 20h2. The first cam matching portion 20h1 matches the shape of the first connected cam 61. The first elastic member matching portion 20h2 matches the shape of the first elastic portion 62 and the first pin shaft 63. One end of the first pin shaft 63 away from the first connected cam 61 abuts against the first elastic member matching portion 20h2.

[0280] In the embodiment of the present application, the first damping member 60 includes four first elastic parts 62 for illustration. Simultaneously, the first elastic member matching part 20h2 includes four grooves for illustration.

[0281] In some embodiments, a second matching portion 20i is disposed on the side of the inner shaft 20 facing the second surface b2 of the linkage structure 47, and the second damping member 70 is disposed in cooperation with the second matching portion 20i.

[0282] The structure of the second matching portion 20i may refer to the first matching portion 20h, and the embodiment of the present application is not limited thereto.

[0283] In some embodiments, a first assembly opening 20a is further provided between the first matching portion 20h and the second matching portion 20i. Of course, the first assembly opening 20a on the inner shaft 20 is reasonably provided according to the structure of the rotating shaft mechanism 2.

[0284] Fig.18 A schematic diagram of the structure of an inner shaft provided in an embodiment of the present application.

[0285] Fig.15 The schematic diagram of the structure of the inner shaft 20 and a rotating assembly 40 is shown. In the case where the rotating shaft mechanism 2 includes multiple rotating assemblies 40, as shown in FIG. Fig.18 As shown, the inner shaft 20 may include a plurality of shaft segments 27 that match the rotating assembly 40 .

[0286] In some embodiments, Fig.18 As shown, the inner shaft 20 further includes a first connecting portion 20j, and two adjacent shaft segments 27 are connected by the first connecting portion 20j. The present embodiment of the application does not limit the structure of the first connecting portion 20j, and it can be reasonably arranged in combination with the structure of the rotating shaft mechanism 2.

[0287] For example, the first connection portion 20j includes a first assembly opening 20a.

[0288] In some embodiments, the first assembly openings 20 a on the inner shaft 20 are arranged in pairs. Alternatively, the first assembly openings 20 a on the inner shaft 20 are located on the center line of the inner shaft 20 .

[0289] In this way, after the inner shaft 20 and the outer shaft 30 are assembled, the force applied at the position of the first assembly opening 20 a is symmetrical to the entire rotating shaft mechanism 2 , so as to improve the symmetry of the first plate 45 and the second plate 46 .

[0290] Next, the structure of the outer shaft 30 and the cooperation between the outer shaft 30 and the rotating assembly 40 are schematically described.

[0291] In some embodiments, Figure 5 As shown, the outer shaft 30 includes a first surface c1 facing the rotating assembly 40 and a second surface c2 facing away from the rotating assembly 40 .

[0292] Fig.19A A schematic diagram of the structure of an outer shaft provided in an embodiment of the present application.

[0293] In some embodiments, Fig.19A As shown, the first surface c1 of the outer shaft 30 facing the rotating component 40 has a first arc-shaped recessed portion 31 and a second arc-shaped recessed portion 32. The position and shape of the first arc-shaped recessed portion 31 match the first rotating member 41, and the position and shape of the second arc-shaped recessed portion 32 match the second rotating member 42.

[0294] The first arc-shaped recessed portion 31 and the first arc-shaped raised portion 21 are stacked to form a first arc-shaped groove, in which the first rotating member 41 rotates. The second arc-shaped recessed portion 32 and the second arc-shaped raised portion 22 are stacked to form a second arc-shaped groove, in which the second rotating member 42 rotates.

[0295] The first surface c1 of the outer shaft 30 facing the rotating assembly 40 may also have a third arc-shaped recess 33 and a fourth arc-shaped recess 34 . The position and shape of the third arc-shaped recess 33 match the third rotating member 43 , and the position and shape of the fourth arc-shaped recess 34 match the fourth rotating member 44 .

[0296] The first surface c1 of the outer shaft 30 may further have a fifth arc-shaped recess 35 and a sixth arc-shaped recess 36 . The position and shape of the fifth arc-shaped recess 35 match the fifth rotating member 48 . The position and shape of the sixth arc-shaped recess 36 match the sixth rotating member 49 .

[0297] In some embodiments, the outer shaft 30 further includes a second assembly opening 30a between the first arc-shaped recessed portion 31 and the fourth arc-shaped recessed portion 34, and a second assembly opening 30a is also provided between the third arc-shaped recessed portion 33 and the second arc-shaped recessed portion 32. The second assembly opening 30a is used for assembly and connection with the inner shaft 20.

[0298] In some embodiments, the outer shaft 30 further includes an end fitting 30 b , which is connected to the first arc-shaped recessed portion 31 and the second arc-shaped recessed portion 32 and is used for assembly with the end appearance part 20 b of the inner shaft 20 .

[0299] In some embodiments, the first translation member matching portion 30c and the second translation member matching portion 30d are disposed on the side of the outer shaft 30 facing the first surface c1 of the linkage structure 47. After the first translation member matching portion 30c is matched with the first conductive portion 20c, sufficient space is left for the movement of the first translation member 471. After the second translation member matching portion 30d is matched with the second conductive portion 20d, sufficient space is left for the movement of the second translation member 472.

[0300] For example, along the second direction X, part of the first translation member matching portion 30c is a plane, and part of it is a groove. Similarly, along the second direction X, part of the second translation member matching portion 30d is a plane, and part of it is a groove.

[0301] In some embodiments, a third limiting portion 30 e and a fourth limiting portion 30 f are disposed on the side of the outer shaft 30 facing the first surface c1 of the linkage structure 47 .

[0302] The third limiting portion 30e and the fourth limiting portion 30f are arranged between the first translation member matching portion 30c and the second translation member matching portion 30d. Along the second direction X, the third limiting portion 30e and the fourth limiting portion 30f are located on both sides of the outer shaft 30. After the rotating assembly 40 is assembled with the outer shaft 30, the third limiting portion 30e and the fourth limiting portion 30f are located on both sides of the rotating member 473.

[0303] The surface of the third limiting portion 30e facing the fourth limiting portion 30f and the surface of the fourth limiting portion 30f facing the third limiting portion 30e are both arc surfaces, that is, the surfaces of the third limiting portion 30e and the fourth limiting portion 30f facing the rotating member 473 are arc surfaces. The third limiting portion 30e and the fourth limiting portion 30f match the rotation track of the rotating member 473, and the rotating member 473 is limited between the third limiting portion 30e and the fourth limiting portion 30f to limit the rotation track of the rotating member 473.

[0304] The arc surface of the third limiting portion 30e and the fourth limiting portion 30f facing the rotating member 473 can be a quarter arc surface, or a third arc surface, or an arc surface of other curvatures.

[0305] in addition, Fig.19A The shapes of the third limiting portion 30e and the fourth limiting portion 30f shown in the figure are only for illustration and are not limited in any way, as long as the surfaces of the third limiting portion 30e and the fourth limiting portion 30f facing the rotating member 473 match the rotation trajectory of the rotating member 473.

[0306] Please continue to refer to Fig.19A In some embodiments, a second assembly opening 30a is provided between the third limiting portion 30e and the fourth limiting portion 30f, and the rotating member 473 ( Fig.19A (not shown) is sleeved on the second assembly opening 30a.

[0307] The outer contour of the second assembly opening 30a at this position matches the shape of the reserved hole of the rotating member 473. For example, the second assembly opening 30a is a cylindrical hole. After the assembly screw is inserted into the second assembly opening 30a, the rotating member 473 is sleeved on the assembly screw.

[0308] Please continue to refer to Fig.19AIn some embodiments, a third matching portion 30h is disposed on the side of the outer shaft 30 facing the first surface c1 of the linkage structure 47. Fig.19B As shown, the first damping member 60 is placed in the third matching portion 30h and is arranged in cooperation with the third matching portion 30h. The first damping member 60 is also arranged in cooperation with the first matching portion 20h in the inner shaft 20, and the first matching portion 20h and the third matching portion 30h are matched to form a matching space, and the first damping member 60 can rotate in the matching space.

[0309] In some embodiments, the outer shaft 30 is provided with a fourth matching portion 30i on the side where the first surface c1 of the linkage structure 47 is located, and the second damping member 70 is provided in cooperation with the fourth matching portion 30i. After the second matching portion 20i and the fourth matching portion 30i are matched, the second damping member 70 can rotate in the matching space. The structure thereof can refer to the above description on the rotation of the first damping member 60 in the matching space.

[0310] In some embodiments, a second assembly opening 30a is further provided between the third matching portion 30h and the fourth matching portion 30i. Of course, the second assembly opening 30a on the outer shaft 30 is reasonably provided according to the structure of the rotating shaft mechanism 2.

[0311] Fig.19A The schematic diagram of the structure of the outer shaft 30 cooperating with a rotating assembly 40 is shown. In the case where the rotating shaft mechanism 2 includes multiple rotating assemblies 40, the outer shaft 30 may include multiple shaft sections matching the rotating assemblies 40.

[0312] In some embodiments, Fig.19A As shown, the outer shaft 30 further includes a second connecting portion 30j, and two adjacent shaft segments are connected by the first connecting portion 30j. The present embodiment of the application does not limit the structure of the second connecting portion 30j, and it can be reasonably arranged in combination with the structure of the rotating shaft mechanism 2.

[0313] For example, the second connection portion 30j includes a second assembly opening 30a.

[0314] Fig. 20 A schematic diagram of the structure of an inner shaft, a rotating assembly, and an outer shaft after assembly provided in an embodiment of the present application.

[0315] like Fig. 20 As shown, after the inner shaft 20 and the outer shaft 30 are assembled, most of the components in the rotating assembly 40 are located in the mating space formed by the inner shaft 20 and the outer shaft 30, and the first plate 45 and the second plate 46 in the rotating assembly 40 extend out of the mating space and can rotate relative to the inner shaft 20.

[0316] In some embodiments, Figure 5As shown, the rotating shaft mechanism 2 further includes a decorative cover 50 , which is located on a side of the rotating assembly 40 (or the outer shaft 30 ) away from the inner shaft 20 and connected to the inner shaft 20 .

[0317] By providing the decorative cover 50, the internal structure of the hinge mechanism 2 can be hidden whether the hinge mechanism 2 is in a folded state or a flattened state, thereby improving the appearance of the hinge mechanism 2. When the hinge mechanism 2 is applied to the electronic device 1, when the first shell 11 and the second shell 12 are in a folded state, the decorative cover of the hinge mechanism 2 is exposed, thereby filling the gap between the first shell 11 and the second shell 12, thereby ensuring the appearance of the electronic device 1. That is, whether the electronic device 1 is in a closed state or in a flattened state, the internal structure is hidden, and the appearance of the entire structure is complete and has a good appearance.

[0318] The embodiment of the present application further provides an electronic device 1, and any one of the above-mentioned various implementation modes of the hinge mechanism 2 can be applied to the electronic device 1 provided in the embodiment of the present application.

[0319] Fig.21 An exploded view of an electronic device 1 provided in an embodiment of the present application.

[0320] In some embodiments, taking a two-fold electronic device as an example, Fig.21 As shown, the electronic device 1 includes a first housing 11, a second housing 12, a hinge mechanism 2 and a display screen 3. The first housing 11 and the second housing 12 are located on both sides of the hinge mechanism 2, and the hinge mechanism 2 is connected to the first housing 11 and the second housing 12 respectively.

[0321] The embodiment of the present application does not limit the structure and shape of the first shell 11 and the second shell 12, and the structure of the shell in the related art is applicable to the embodiment of the present application.

[0322] In some embodiments, the first shell 11 is provided with a first groove 111 , the second shell 12 is provided with a second groove 121 , the first plate 45 of the hinge mechanism 2 is installed in the first groove 111 , and the second plate 46 is installed in the second groove 121 .

[0323] In some embodiments, the shaft mechanism 2 and the first groove 111 and the second groove 121 may be connected by screws, etc. For example, the first plate 45 in the shaft mechanism 2 is connected to the first groove 111 by screws, and the second plate 46 in the shaft mechanism 2 is connected to the second groove 121 by screws.

[0324] In some embodiments, the display screen 3 is disposed on the first shell 11 and the second shell 12. Then, the first shell 11 and the second shell 12 are also used to carry the display screen 3, that is, the display screen 3 is fixedly connected (for example, glued) to the first shell 11 and the second shell 12, so that the display screen 3 is kept as flat as possible during use, and the non-display surface of the display screen 3 is protected.

[0325] For example, the first shell 11 includes a first surface C1, the second shell 12 includes a second surface C2, the hinge mechanism 2 includes a third surface C3 located on the side of the inner shaft 20 away from the rotating assembly 40, the display screen 3 continuously covers the first surface C1, the third surface C3 and the second surface C2, and the display screen 3 is fixedly connected to the first surface C1 of the first shell 11 and the second surface C2 of the second shell 12 respectively.

[0326] The display screen 3 is, for example, a flexible screen, which is used to display images, videos, etc. The embodiment of the present application does not limit the specific type of the flexible screen. For example, the flexible screen can be an active-matrix organic light-emitting diode or an active-matrix organic light-emitting diode (AMOLED) display screen. The AMOLED display screen is a self-luminous display screen and does not need to be provided with a backlight module (BLM). Therefore, when the substrate substrate in the AMOLED display screen is made of a flexible resin material, such as polyethylene terephthalate (PET), the AMOLED display screen can have a bendable characteristic. For example, the flexible screen can also be an organic light-emitting diode (OLED) display screen, a mini organic light-emitting diode (MiNi OLED) display screen, a microorganic light-emitting diode (Mic OLED) display screen, a micro organic light-emitting diode (micro organic light-emitting diode) display screen, a quantum dot light emitting diode (QLED) display screen, etc.

[0327] For example, Fig.21 As shown, the display screen 3 may include a first portion 301 , a second portion 302 , and a third portion 303 , a fourth portion 304 , and a fifth portion 305 located therebetween.

[0328] The first part 301 corresponds to and is connected to the first shell 11, the second part 22 corresponds to and is connected to the second shell 12, and the third part 303, the fourth part 304 and the fifth part 305 correspond to the hinge mechanism 2. When the hinge mechanism 2 is folded, the third part 303, the fourth part 304 and the fifth part 305 are folded. When the hinge mechanism 2 is unfolded, the third part 303, the fourth part 304 and the fifth part 305 are unfolded.

[0329] For example, the third portion 303 corresponds to the first flat plate 45 of the rotating shaft mechanism 2 , the second portion 304 corresponds to the second flat plate 46 of the rotating shaft mechanism 2 , and the fifth portion 305 corresponds to the inner shaft 20 of the rotating shaft mechanism 2 .

[0330] In some embodiments, there is no fixed connection between the third portion 303 and the first plate 45 , there is no fixed connection between the fourth portion 304 and the second plate 46 , and there is no fixed connection between the fifth portion 305 and the inner shaft 20 .

[0331] In other embodiments, the third portion 303 is fixedly connected to the first plate 45 (for example, it can be bonded), the fourth portion 304 is fixedly connected to the second plate 46 (for example, it can be bonded), and there is no fixed connection between the fifth portion 305 and the inner shaft 20.

[0332] In the embodiment of the present application, when the third part 303 is fixedly connected to the first flat plate 45 and the fourth part 304 is fixedly connected to the second flat plate 46, the electronic device 1 can move the third part 303 with the first flat plate 45 and the fourth part 304 with the second flat plate 46 during the folding or unfolding process, that is, there is no relative movement between the third part 303 and the first flat plate 45, and there is no relative movement between the fourth part 304 and the second flat plate 46, thereby improving the flatness of the third part 303 and the fourth part 304 of the display screen 3 during the unfolding and folding process and reducing the risk of failure of the display screen 3.

[0333] Fig. 22 and Fig.23 A schematic diagram of the usage status of an electronic device 1 provided in an embodiment of the present application.

[0334] During the use of the electronic device 1, the shaft mechanism 2 at least includes Fig. 22 The expanded state shown and Fig.23 Shown in folded state.

[0335] In this unfolded state, the first shell 11 and the second shell 12 are substantially located in the same plane, so that the display screen 3 ( Fig. 22The first shell 11 and the second shell 12 can rotate toward each other (i.e., the first shell 11 and the second shell 12 rotate relative to each other), thereby driving the hinge mechanism 2 to fold.

[0336] During the folding process, Fig.23 As shown, the ends of the first shell 11 and the second shell 12 away from the hinge mechanism 2 are close to each other, so that the electronic device 1 can be rotated to a folded state. The folded state can be folded into Fig.23 The angle shown can also be folded into Fig.24 Complete alignment shown.

[0337] like Fig.24 As shown, in the folded state, the display screen 3 is located in the space enclosed by the folded first shell 11 and the second shell 12. At this time, the display screen 3 is not exposed, and the user cannot operate the display screen 3, and the electronic device 1 is easy to store and carry. When the hinge mechanism 2 is in the folded state, the first shell 11 and the second shell 12 can rotate (the rotation direction is opposite to the rotation direction when folded), thereby driving the hinge mechanism 2 to unfold, so that the electronic device 1 is in the folded state. Fig. 22 Therefore, in the present application, the hinge mechanism 2 is used to realize the folding and unfolding of the electronic device 1 .

[0338] The third surface C3 of the hinge mechanism 2 provided in the embodiment of the present application, which is located on the inner axis 20 and faces the display screen 3, is a plane. During the transition of the hinge mechanism 2 between the folded state and the flattened state, the third surface C3 always provides a planar support for the display screen 3, which can protect the display screen 3 and improve the reliability of the display screen 3.

[0339] 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.

[0340] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application 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 rotating shaft mechanism, characterized in that: include: An inner shaft (20) and an outer shaft (30) that are detachably connected; A rotating assembly (40) is disposed between the inner shaft (20) and the outer shaft (30); The rotating assembly (40) comprises a first swing arm (40A), a second swing arm (40B) and a linkage structure (47); The linkage structure (47) comprises a first translation member (471), a second translation member (472) and a rotation member (473); The first translation member (471) is slidably connected to the inner shaft (20) and is clamped to the first swing arm (40A); the second translation member (472) is slidably connected to the inner shaft (20) and is clamped to the second swing arm (40B); the rotating member (473) connects the first translation member (471) and the second translation member (472) and is rotatably connected to the inner shaft (20); the rotation axis of the rotating member (473) is parallel to a first direction (Z), and the first direction (Z) is a direction from the inner shaft (20) to the outer shaft (30); During the transformation of the rotating shaft mechanism from the flattened state to the folded state, the first swing arm (40A) and the second swing arm (40B) rotate relative to each other along the rotation axis of the rotating shaft mechanism, driving the first translation member (471) and the second translation member (472) to slide in opposite directions along a direction parallel to the second direction (X); when the first translation member (471) and the second translation member (472) slide, they drive the rotating member (473) to rotate; The second direction (X) intersects both the direction of the rotation axis and the first direction (Z), and the first direction (Z) is perpendicular to the direction of the rotation axis.

2. The rotating shaft mechanism according to claim 1, characterized in that: The first swing arm (40A) comprises a first rotating member (41) and a first plate (45) which are fixedly connected; the second swing arm (40B) comprises a second rotating member (42) and a second plate (46) which are fixedly connected; Along the direction of the rotation axis, the first rotating member (41) and the second rotating member (42) are located on both sides of the linkage structure (47); along the second direction (X), the first flat plate (45) and the second flat plate (46) are located on both sides of the linkage structure (47); The first flat plate (45) can drive the first rotating member (41) to rotate relative to the inner shaft (20); and the second flat plate (46) can drive the second rotating member (42) to rotate relative to the inner shaft (20).

3. The rotating shaft mechanism according to claim 2, characterized in that: The first translation member (471) includes a first recessed portion (4711) that is recessed away from the first rotating member (41), and the first rotating member (41) includes a first protruding portion (411) that protrudes toward the first translation member (471), and the first protruding portion (411) is cooperatively connected with the first recessed portion (4711) to achieve the first translation member (471) being driven to move during the rotation of the first rotating member (41); and / or, The second translation member (472) includes a second recessed portion (4721) that is recessed away from the second rotating member (42), and the second rotating member (42) includes a second protruding portion (421) that protrudes toward the second translation member (472). The second protruding portion (421) is cooperatively connected with the second recessed portion (4721) to achieve the movement of the second translation member (472) during the rotation of the second rotating member (42).

4. The rotating shaft mechanism according to claim 3, characterized in that: The first protruding portion (411) is located at an end of the first rotating member (41) away from the first flat plate (45), and the first recessed portion (4711) is located at an end of the first translating member (471) close to the first flat plate (45); and / or, The second protruding portion (421) is located at an end of the second rotating member (42) away from the second flat plate (46), and the second recessed portion (4721) is located at an end of the second translatory member (472) close to the second flat plate (46).

5. The rotating shaft mechanism according to any one of claims 2 to 4, characterized in that: The first swing arm (40A) further comprises a third rotating member (43), the third rotating member (43) being fixedly connected to the first plate (45), the third rotating member (43) and the first rotating member (41) being arranged on opposite sides of the linkage structure (47); the first plate (45) can also drive the third rotating member (43) to rotate relative to the inner shaft (20); The second swing arm (40B) further comprises a fourth rotating member (44), the fourth rotating member (44) being fixedly connected to the second flat plate (46), the fourth rotating member (44) and the second rotating member (42) being arranged on opposite sides of the linkage structure (47); the second flat plate (46) can also drive the fourth rotating member (44) to rotate relative to the inner shaft (20).

6. The rotating shaft mechanism according to any one of claims 1 to 5, characterized in that: The rotating member (473) includes a gear, the first translating member (471) includes a first rack, and the second translating member (472) includes a second rack, and the first rack and the second rack are respectively meshed with the gear.

7. The rotating shaft mechanism according to any one of claims 1 to 6, characterized in that: A first guide portion (20c) is provided on the side of the inner shaft (20) facing the linkage structure (47), and the first guide portion (20c) is capable of guiding the first translation member (471) to move in a direction parallel to the second direction (X); and / or, A second guide portion (20d) is provided on the side of the inner shaft (20) facing the linkage structure (47), and the second guide portion (20d) can guide the second translation member (472) to move in a direction parallel to the second direction (X).

8. The rotating shaft mechanism according to claim 7, characterized in that: The first guide portion (20c) comprises a first guide groove (20c1) and a first guide protrusion (20c2) extending along the second direction (X); the first guide groove (20c1) is arranged close to the first flat plate (45), and the first guide protrusion (20c2) is arranged close to the second flat plate (46); and / or, The second guide portion (20d) comprises a second guide groove and a second guide protrusion extending along the second direction (X); the second guide groove is arranged close to the second flat plate (46), and the second guide protrusion is arranged close to the first flat plate (45).

9. The rotating shaft mechanism according to any one of claims 1 to 8, characterized in that: A first limiting portion (20e) and a second limiting portion (20f) are provided on the side of the inner shaft (20) facing the linkage structure (47); Along the second direction (X), the first limiting portion (20e) and the second limiting portion (20f) are located on two opposite sides of the rotating member (473); the surfaces of the first limiting portion (20e) and the second limiting portion (20f) facing the rotating member (473) are arc surfaces, and are slidably connected to the rotating member (473).

10. The rotating shaft mechanism according to any one of claims 1 to 9, characterized in that: The surface of the inner shaft (20) facing away from the rotating assembly (40) is a plane.

11. The rotating shaft mechanism according to any one of claims 2 to 10, characterized in that: The inner shaft (20) has a first arc-shaped protrusion (21) and a second arc-shaped protrusion (22) on the side facing the first rotating member (41) and the second rotating member (42), and the outer shaft (30) has a first arc-shaped recessed portion (31) and a second arc-shaped recessed portion (32) on the side facing the first rotating member (41) and the second rotating member (42); The first arc-shaped protrusion (21) and the first arc-shaped recess (31) form a first arc-shaped groove (U1), and the second arc-shaped protrusion (22) and the second arc-shaped recess (32) form a second arc-shaped groove (U2); the first rotating member (41) can move in the first arc-shaped groove (U1), and the second rotating member (42) can move in the second arc-shaped groove (U2).

12. The rotating shaft mechanism according to any one of claims 5 to 11, characterized in that: The rotating assembly (40) further comprises a first damping member (60), wherein the first damping member (60) is slidably connected to a side of the second rotating member (42) and the third rotating member (43) away from the linkage structure (47); When the first plate (45) drives the third rotating member (43) to rotate and the second plate (46) drives the second rotating member (42) to rotate, the first damping member (60) is used to apply resistance to the first plate (45) and the second plate (46).

13. The rotating shaft mechanism according to claim 12, characterized in that: The third rotating member (43) and the second rotating member (42) are respectively provided with a first cam (431) and a second cam (422) on the side facing away from the linkage structure (47); The first damping member (60) comprises a first connected cam (61), a first elastic portion (62) and a first pin shaft (63); The first connected cam (61) is sleeved on one end of the first pin shaft (63) close to the linkage structure (47), and is meshed with the first cam (431) and the second cam (422); The first integrated cam (61) is rotatably mounted on the first pin shaft (63), and the first elastic portion (62) is sleeved on the first pin shaft (63).

14. The rotating shaft mechanism according to claim 12 or 13, characterized in that: The first swing arm (40A) further comprises a fifth rotating member (48), the fifth rotating member (48) being fixedly connected to the first plate (45), the fifth rotating member (48) and the third rotating member (43) being arranged on opposite sides of the first damping member (60); the first plate (45) can also drive the fifth rotating member (48) to rotate relative to the inner shaft (20); The second swing arm (40B) further comprises a sixth rotating member (49), the sixth rotating member (49) being fixedly connected to the second flat plate (46), the sixth rotating member (49) and the second rotating member (42) being arranged on opposite sides of the first damping member (60); the second flat plate (46) can also drive the sixth rotating member (49) to rotate relative to the inner shaft (20).

15. The rotating shaft mechanism according to claim 14, characterized in that: The rotating assembly (40) further includes a second damping member (70); The second damping member (70) is slidably connected to a side of the fifth rotating member (48) and the sixth rotating member (49) close to the first damping member (60); When the first plate (45) drives the fifth rotating member (48) to rotate and the second plate (46) drives the sixth rotating member (49) to rotate, the second damping member (70) is used to apply resistance to the first plate (45) and the second plate (46).

16. An electronic device, characterized in that: include: A first shell (11), a second shell (12), a flexible screen and a hinge mechanism (2) as claimed in any one of claims 1 to 15; The first shell (11) is detachably connected to the first plate (45), and the second shell (12) is detachably connected to the second plate (46); The first shell (11) includes a first surface (B1), the second shell (12) includes a second surface (B2), the rotating shaft mechanism (2) includes a third surface (B3) located on the side of the inner shaft (20) away from the rotating assembly (40), the flexible screen continuously covers the first surface (B1), the third surface (B3) and the second surface (B2), and the flexible screen is fixedly connected to the first surface (B1) of the first shell (11) and the second surface (B2) of the second shell (12), respectively.

Images