Rotating shaft mechanism and electronic device

Abstract

The present application relates to the technical field of electronic devices, and discloses a rotating shaft mechanism and an electronic device. The rotating shaft mechanism comprises a base, a door plate, a connecting member and a first swing arm; the connecting member is rotatably connected to the door plate; when the first swing arm rotates from a folding position to an unfolding position relative to the base, the first swing arm slides from a first position to a second position relative to the connecting member; a first limiting structure is arranged between the first swing arm and the door plate, and when the first swing arm is located at the folding position, the first limiting structure can limit the first swing arm to slide relative to the connecting member in a set direction, the set direction being the direction from the first position to the second position. The electronic device comprises a flexible display screen, a housing and the rotating shaft mechanism, wherein a first sub-housing and a second sub-housing are connected to the rotating shaft mechanism, respectively. According to the present application, the motion braking of the first swing arm can be achieved, reducing the possibility of the first swing arm extruding the space accommodating the display screen in the event of a fall, and thus ensuring the structural integrity and functional stability of the display screen.

Description

Rotating shaft mechanism and electronic equipment

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on July 17, 2023, with application number 202310871855.0 and application name “Hinge Mechanism and Electronic Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of electronic equipment, and in particular to a rotating shaft mechanism and electronic equipment. Background Art

[0003] With the development of technology and usage requirements, the portability requirements for electronic devices (such as mobile phones, tablets, etc.) are gradually increasing, among which a new form of electronic device has emerged, namely foldable electronic devices. The display screen of the foldable electronic device mainly has an unfolded state and a folded state. In order to realize the conversion between unfolding and folding, the foldable electronic device adopts a hinge mechanism to realize this function; the hinge mechanism includes a base, a swing arm and a connecting block, one end of the swing arm is rotatably connected to the base, and the other end of the swing arm is slidably connected to the connecting block, so that the swing arm can switch between the unfolded position and the folded position. However, during use, the foldable electronic device in the folded state may accidentally fall. When falling, the base may hit the ground first, and the base will cause the swing arm to slide relative to the connecting block, so that the swing arm squeezes the space accommodating the display screen, causing the inner screen of the display screen to fail.

[0004] Summary of the Invention

[0005] The present application provides a hinge mechanism and an electronic device to solve, to a certain extent, the technical problem that in the event of a fall, the swing arm slides relative to the connecting block, thereby causing the swing arm to squeeze the space accommodating the display screen and causing the inner screen of the display screen to fail.

[0006] The technical solution is as follows:

[0007] A first aspect of the present application provides a rotating shaft mechanism, which includes: a base, a door panel, a connecting member, and a first swing arm;

[0008] The connecting member is rotatably connected to the door panel;

[0009] The first swing arm is slidably connected to the connecting member and is also rotatably connected to the base. When the first swing arm rotates from a folded position to an unfolded position relative to the base, the first swing arm slides from a first position to a second position relative to the connecting member.

[0010] In which, there is a first limiting structure between the first swing arm and the door panel. When the first swing arm is in the folded position, the first limiting structure can limit the first swing arm from sliding along a set direction relative to the connecting member, and the set direction is from the first position to the second position.

[0011] By adopting the above solution, when the first swing arm is in the folded position, in the event of a fall, a first limiting structure is provided between the first swing arm and the door panel to limit the sliding of the first swing arm relative to the connecting member, thereby achieving movement braking of the first swing arm, reducing the possibility of the first swing arm squeezing the space accommodating the display screen in the event of a fall, thereby ensuring the structural integrity and functional stability of the display screen.

[0012] In some implementations, the first limiting structure includes a first abutting surface provided on the door panel, and a second abutting surface provided on the first swing arm; the first abutting surface can contact the second abutting surface.

[0013] By adopting the above solution, by providing a first abutting surface and a second abutting surface on the door panel and the first swing arm, respectively, when the first swing arm is in the folded position, in the event of a fall, the first abutting surface can abut against the second abutting surface, thereby limiting further movement of the first swing arm relative to the connecting member, thereby facilitating the structural and functional integrity of the display screen. Furthermore, the abutting structure of the first abutting surface and the second abutting surface facilitates manufacturing, resulting in a relatively simple and effective structure.

[0014] In some implementations, there are multiple first abutting surfaces, and the multiple first abutting surfaces are distributed in a stepped manner;

[0015] There are multiple second abutting surfaces, and the multiple second abutting surfaces are distributed in a stepped manner;

[0016] The plurality of first abutting surfaces and the plurality of second abutting surfaces are arranged in a one-to-one correspondence.

[0017] By adopting the above-mentioned scheme, a plurality of first abutting surfaces in a stepped shape are used to correspond one to one with a plurality of second abutting surfaces in a stepped shape. In this way, after the first abutting surfaces at different positions abut against the corresponding second abutting surfaces, abutment at multiple positions is achieved, thereby ensuring the effectiveness of the limiting structure function and improving the performance of the door panel in limiting and stopping the first swing arm.

[0018] In some implementations, the door panel has a first protruding structure, and an end surface of the first protruding structure forms the first abutting surface;

[0019] The first swing arm has a first concave groove, and a groove wall of the first concave groove forms a second abutting surface;

[0020] When the first swing arm is in the folded position, the first protruding structure extends into the first recessed groove, so that the first abutting surface can contact the second abutting surface.

[0021] By adopting the above scheme, a first protruding structure is provided on the door panel and a first recessed groove is provided on the first swing arm. In this way, after the first protruding structure is inserted into the first recessed groove, corresponding first abutting surfaces and second abutting surfaces are formed at the abutting points between the first protruding structure and the first recessed groove. In addition, the cooperation between the first protruding structure and the first recessed groove can optimize the cooperation relationship between the door panel and the first swing arm. Only when the first swing arm is in the folded position can the first abutting surface contact the second abutting surface. In this way, in the event of a fall, the door panel can limit the movement of the first swing arm, thereby ensuring the structural integrity and functional stability of the display screen.

[0022] In some implementations, the first swing arm includes a first sub-section and a second sub-section, the first sub-section is connected to the second sub-section, a step surface is formed at the connection between the first sub-section and the second sub-section, the step surface forms another second abutment surface, and the surface at an edge of the door panel forms another first abutment surface; the first recessed groove is located on the second sub-section.

[0023] By adopting the above scheme, the first sub-part of the first swing arm is connected to the base, and the second sub-part is mainly used to slide in connection with the connecting piece, and a step surface is formed at the connection between the first sub-part and the second sub-part, which can form another second abutting surface, and the surface at one edge of the door panel forms another first abutting surface. In this way, after the step surface abuts the surface at the edge of the door panel, the first abutting surface and the second abutting surface are abutted. In this way, in the case of a fall, the first protrusion structure is inserted into the first recessed groove, and the step surface abuts the surface at the edge of the door panel, forming a one-to-one abutment form between two first abutting surfaces and two second abutting surfaces, thereby further ensuring the structural integrity and functional stability of the display screen.

[0024] In some implementations, a second limiting structure is provided between the first swing arm and the connecting member. When the first swing arm is in the expanded position, the second limiting structure can limit the first swing arm from sliding relative to the connecting member along the set direction.

[0025] By adopting the above solution, it can be achieved that the first swing arm will not rotate excessively relative to the base, and the first swing arm will not slide excessively relative to the connecting member, thereby limiting the expansion degree of the first swing arm and preventing excessive expansion.

[0026] In some implementations, the second limiting structure includes a third abutting surface provided on the connecting member, and the second abutting surface formed by a groove wall of the first recessed groove;

[0027] The third abutting surface is used to contact the second abutting surface.

[0028] By adopting the above scheme, the third abutting surface is abutted against the second abutting surface to limit the rotation angle of the first swing arm relative to the base, that is, during the expansion of the first swing arm, the expansion degree of the first swing arm is limited, which can prevent excessive expansion; in this way, in different states, the first abutting surface and the third abutting surface can respectively abut against the second abutting surface, cleverly realizing the limitation in the folded and expanded states.

[0029] In some implementations, the connecting member has a second protruding structure, and one end surface of the second protruding structure forms the third abutting surface;

[0030] When the first swing arm is in the expanded position, the second protruding structure extends into the first recessed groove, so that the third abutting surface can contact the second abutting surface.

[0031] By adopting the above solution, the second protrusion structure is inserted into the first recessed groove, and a third abutting surface is formed at the position where the second protrusion structure abuts the first recessed groove. In this way, when the first swing arm is in different positions (i.e., the folded position and the unfolded position), the first protrusion structure and the second protrusion structure are respectively inserted into the first recessed groove, thereby realizing the limitation of the first swing arm relative to the connecting member.

[0032] In some implementations, the connecting member includes a main body and a limiting clamp arm, the main body having a first slide groove, and the limiting clamp arms are respectively connected to two opposite side walls of the first slide groove, and the limiting clamp arms are used to limit the first swing arm in the first slide groove;

[0033] The door panel has an avoidance groove, and the avoidance groove is used to accommodate the limiting clamp arm;

[0034] Part of the structure of the first swing arm is located between the main body and the door panel;

[0035] The first protrusion structure is located in the avoidance groove, and the second protrusion structure is located in the first sliding groove.

[0036] By adopting the above scheme, the first swing arm is limited in the first sliding groove by using the limiting clamp arm to enable the first swing arm to slide relative to the connecting member; and the avoidance groove is provided to accommodate the limiting clamp arm to achieve avoidance of movement between the first swing arm and the connecting member, and facilitate the first protrusion structure to be able to be inserted into the first recessed groove, and the second protrusion structure to be able to be inserted into the first recessed groove.

[0037] In some implementations, the first slide groove is a linear slide groove, which is used to enable the first swing arm to perform linear motion relative to the connecting member;

[0038] Alternatively, the first sliding groove is a curved sliding groove, which is used to enable the first swing arm to swing relative to the connecting member.

[0039] By adopting the above-mentioned scheme, different types of first slide grooves can be used according to different types of rotating shaft mechanisms; in addition, in the same rotating shaft mechanism, when there are multiple first swing arms, different first swing arms can also be adapted to different slide groove types, that is, some of the first slide grooves adopt straight slide grooves, and other first slide grooves adopt curved slide grooves.

[0040] In some implementations, the pivot mechanism further includes a second swing arm, the second swing arm is rotatably connected to the base, and the second swing arm is rotatably connected to the connecting member.

[0041] By adopting the above solution, after the second swing arm is rotationally connected to the base and the connecting member respectively, when the second swing arm is in the folded position and the unfolded position relative to the base, the distance between the axis of the rotational connection between the second swing arm and the base and the axis of the rotational connection between the second swing arm and the connecting member can remain unchanged. In this case, it is ensured that the first swing arm can slide relative to the connecting member.

[0042] In some implementations, the door panel is connected to the lower pair of the connecting member, and the second swing arm is used to drive the door panel to move.

[0043] By adopting the above scheme, it is achieved that when the hinge mechanism switches between the folded state and the unfolded state, the door panel is driven by the joint action of the connecting member and the second swing arm; in addition, when the hinge mechanism switches between the folded state and the unfolded state, the door panel is driven without the participation of the first swing arm, that is, there is no direct movement correlation between the door panel and the first swing arm. In this way, after the first limiting structure is designed between the door panel and the first swing arm, in the event of a fall, the base is first subjected to the collision force, and then the force is transmitted to the first swing arm, the door panel, the connecting member and the housing of the electronic device in sequence, so as to resist the relative sliding between the first swing arm and the connecting block during the fall, thereby reducing the risk of display screen failure.

[0044] In some implementations, the second swing arm is connected to the door panel high pair, wherein the second swing arm has a first through hole, the door panel has a first connecting ear, the first connecting ear has an arc-shaped through hole, the first connecting ear is inserted into the first through hole, a first pin is passed through the arc-shaped through hole, and the first pin is also penetrated and arranged on the second swing arm.

[0045] By adopting the above solution, it is easy to realize the drive between the second swing arm and the door panel, so that the door panel can rotate relative to the connecting member.

[0046] In some implementations, the door panel is provided with a first curved surface structure, and the connecting member is provided with a second curved surface structure, and the first curved surface structure cooperates with the second curved surface structure.

[0047] By adopting the above solution, the first curved surface structure cooperates with the second curved surface structure to achieve the door panel being able to rotate relative to the connecting piece.

[0048] In some implementations, the pivot mechanism further includes a third swing arm, wherein the third swing arm is rotatably connected to the base and movably connected to the door panel.

[0049] By adopting the above solution, the door panel can be driven by the third swing arm and the connecting member; while the second swing arm is not responsible for driving the door panel, that is, the second swing arm is only rotatably connected to the base and the connecting member respectively.

[0050] In some implementations, the hinge mechanism further includes a flexible support plate, which is used to support a flexible display screen of the electronic device; the flexible support plate is fixedly connected to the door panel.

[0051] By adopting the above solution, the flexible support plate can better support the flexible display screen.

[0052] The second aspect of the present application provides an electronic device, including a flexible display, a shell and the above-mentioned hinge mechanism, the shell including a first sub-shell and a second sub-shell, the first sub-shell and the second sub-shell are respectively connected to the hinge mechanism, and the first sub-shell and the second sub-shell can rotate relative to each other through the hinge mechanism; the flexible display is respectively connected to the first sub-shell and the second sub-shell.

[0053] By adopting the above-mentioned solution, after the hinge mechanism is applied to the electronic device, when the first swing arm is in the folded position, in the event of a fall, a first limiting structure is provided between the first swing arm and the door panel to limit the sliding of the first swing arm relative to the connecting member, thereby achieving movement braking of the first swing arm, reducing the possibility of the first swing arm squeezing the space accommodating the display screen in the event of a fall, thereby ensuring the structural integrity and functional stability of the display screen.

[0054] In some implementations, the door panel is fixedly connected to the flexible display screen;

[0055] Alternatively, the door panel is capable of moving relative to the flexible display screen.

[0056] By adopting the above solution, it can be determined according to the situation whether the flexible display screen is fixed to the door panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] FIG1 is a schematic structural diagram of an electronic device in a folded state provided by an embodiment of the present application;

[0058] FIG2 is a schematic structural diagram of an electronic device provided in an embodiment of the present application in a semi-expanded state;

[0059] FIG3 is a schematic structural diagram of an electronic device in an unfolded state provided by an embodiment of the present application;

[0060] FIG4 is a schematic diagram of the exploded structure of the electronic device shown in FIG3 ;

[0061] FIG5 is a cross-sectional view of a rotating shaft mechanism in the related art where the swing arm and the connecting member are in sliding engagement;

[0062] FIG6 is a cross-sectional view of the pivot mechanism in the related art at the connection between the swing arm and the door panel high pair;

[0063] FIG7 is a partial exploded view of a local rotating shaft mechanism in an embodiment of the present application;

[0064] FIG8 is a partial exploded view of a local rotating shaft mechanism from another perspective in an embodiment of the present application;

[0065] FIG9 is a cross-sectional view of the rotating shaft mechanism in the folded state at the point where the first swing arm and the first slide groove cooperate with each other in the embodiment of the present application;

[0066] FIG10 is a cross-sectional view of the rotating shaft mechanism in the expanded state at the position where the first swing arm and the first slide groove cooperate with each other in the embodiment of the present application;

[0067] FIG11 is a cross-sectional view of the rotating shaft mechanism in a folded state at the first recessed groove of the first swing arm in an embodiment of the present application;

[0068] FIG12 is a cross-sectional view of the rotating shaft mechanism at the first recessed groove of the first swing arm in the expanded state according to an embodiment of the present application;

[0069] FIG13 is a schematic diagram of a partial structure of a door panel in an embodiment of the present application;

[0070] FIG14 is a schematic structural diagram of a first swing arm in an embodiment of the present application;

[0071] FIG15 is a structural diagram of the first swing arm from another perspective in an embodiment of the present application;

[0072] FIG16 is a schematic diagram of a partial structure of a connecting member in an embodiment of the present application;

[0073] FIG17 is a schematic diagram of a partial structure of a connecting member from another perspective in an embodiment of the present application;

[0074] FIG18 is a cross-sectional view of the hinge mechanism in a folded state at the connection between the second swing arm and the door panel in an embodiment of the present application;

[0075] FIG19 is a cross-sectional view of the hinge mechanism at the connection between the second swing arm and the door panel in the expanded state according to an embodiment of the present application;

[0076] FIG20 is a schematic structural diagram of a second swing arm in an embodiment of the present application;

[0077] FIG21 is a structural schematic diagram of the second swing arm from another perspective in an embodiment of the present application;

[0078] FIG22 is a schematic diagram (exploded view) of a partial structure of a rotating shaft mechanism with a third swing arm in an embodiment of the present application;

[0079] FIG23 is another cross-sectional view of the rotating shaft mechanism in the folded state at the first recessed groove of the first swing arm in the embodiment of the present application;

[0080] Figure 24 is another cross-sectional view of the rotating shaft mechanism in the expanded state at the first recessed groove of the first swing arm in an embodiment of the present application.

[0081] The meanings of the figures are as follows:

[0082] 10. First base; 11. Swing arm; 12. First door panel; 13. Connecting block;

[0083] 101, first subshell; 102, second subshell;

[0084] 200, display screen; 201, first part; 202, second part; 203, foldable part;

[0085] 300, shaft mechanism; 301, base; 302, door panel; 303, connector; 304, first swing arm; 305, second swing arm; 306, first abutting surface; 307, second abutting surface; 308, first protruding structure; 309, first recessed groove; 310, first sub-section; 311, second sub-section; 312, curved surface structure; 313, limit plate structure; 314, third abutting surface; 315, first Two raised structures; 316, main body; 317, limiting clamp arm; 318, first slide groove; 319, avoidance groove; 320, groove bottom; 321, arc surface; 322, first arc surface structure; 323, second arc surface structure; 324, first through hole; 325, first connecting ear; 326, arc-shaped through hole; 327, first pin shaft; 328, second pin shaft; 329, flexible support plate; 330, third swing arm. DETAILED DESCRIPTION

[0086] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0087] It should be understood that the “multiple” mentioned in this application refers to two or more. In the description of this application, unless otherwise specified, “ / ” means or, for example, A / B can mean A or B; “and / or” in this article is merely a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in order to facilitate the clear description of the technical solution of this application, words such as “first” and “second” are used to distinguish between identical or similar items with basically the same functions and effects. Those skilled in the art can understand that words such as “first” and “second” do not limit the quantity and execution order, and words such as “first” and “second” do not necessarily limit them to be different.

[0088] Please refer to Figures 1 to 3. Figure 1 is a structural schematic diagram of the electronic device provided in an embodiment of the present application in a folded state, Figure 2 is a structural schematic diagram of the electronic device provided in an embodiment of the present application in a semi-expanded state, and Figure 3 is a structural schematic diagram of the electronic device provided in an embodiment of the present application in an expanded state.

[0089] In one or more embodiments, the present application provides an electronic device, which may be a foldable electronic device; the electronic device includes a housing and a hinge mechanism 300, the housing includes a first sub-shell 101 and a second sub-shell 102, the first sub-shell 101 and the second sub-shell 102 are respectively connected to the hinge mechanism 300, and the first sub-shell 101 and the second sub-shell 102 can rotate relative to each other through the hinge mechanism 300. Exemplary electronic devices may be mobile phones, tablet computers, notebooks, or e-readers. Foldable electronic devices are not limited to electronic devices with foldable display screens 200, such as mobile phones, but may also be electronic devices with foldable or unfoldable display screens 200 and keyboards, such as notebooks.

[0090] In the embodiment of the present application, the electronic device is a mobile phone as an example, and the electronic device further includes a display screen 200, which can be a flexible display screen and is connected to the first sub-shell 101 and the second sub-shell 102. The first sub-shell 101 and the second sub-shell 102 can be the middle frame of the mobile phone.

[0091] For ease of description, the width direction of the foldable electronic device is defined as the BB direction, the length direction of the foldable electronic device is defined as the AA direction, and the thickness direction of the foldable electronic device is defined as the CC direction. The AA direction, the BB direction, and the CC direction are perpendicular to each other.

[0092] The foldable electronic device shown in Figure 1 is in a folded state, the foldable electronic device shown in Figure 2 is in a semi-expanded state, and the foldable electronic device shown in Figure 3 is in an expanded state. The expansion angle α of the foldable electronic device shown in Figure 2 is 90 degrees, and the expansion angle β of the foldable electronic device shown in Figure 3 is 180 degrees.

[0093] It should be noted that the angles illustrated in the embodiments of the present application are allowed to have slight deviations. For example, the unfolding angle α of the foldable electronic device shown in Figure 2 is 90 degrees, which means that α can be 90 degrees, or approximately 90 degrees, such as 80 degrees, 85 degrees, 95 degrees or 100 degrees. The unfolding angle β of the foldable electronic device shown in Figure 3 is 180 degrees, which means that β can be 180 degrees, or approximately 180 degrees, such as 170 degrees, 175 degrees, 185 degrees and 190 degrees. The angles illustrated in the following text can be understood in the same way.

[0094] Please refer to Figure 4, which is a schematic diagram of the exploded structure of the electronic device shown in Figure 3. Figure 4 only shows a portion of the hinge mechanism 300. The first sub-housing 101 and the second sub-housing 102 are respectively mounted on either side of the hinge mechanism 300 along the BB direction. The display screen 200 includes a first portion 201, a second portion 202, and a foldable portion 203. The foldable portion 203 is located between the first portion 201 and the second portion 202 and can be bent along the AA direction. The first portion 201, the second portion 202, and the foldable portion 203 together constitute the display screen 200. In this embodiment, the display screen 200 uses a flexible display screen, for example, an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode or active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode (MLED) display screen, a micro organic light-emitting diode (MLED) display screen, a micro organic light-emitting diode (MLED) display screen, or a quantum dot light-emitting diode (QLED) display screen.

[0095] The foldable electronic device folds by folding the display 200 by bringing the first sub-housing 101 and the second sub-housing 102 closer together. When the foldable electronic device is folded, the foldable portion 203 of the display 200 bends, and the first portion 201 and the second portion 202 are positioned relative to each other. At this point, the display 200 is positioned between the first sub-housing 101 and the second sub-housing 102, significantly reducing the risk of damage to the display 200 and effectively protecting it.

[0096] Referring to Figures 2 and 4 , the first sub-housing 101 and the second sub-housing 102 rotate relative to each other via the hinge mechanism 300. This movement of the first sub-housing 101 and the second sub-housing 102 moves the display screen 200 apart, allowing the foldable electronic device to unfold to a semi-expanded state. When the foldable electronic device is in the semi-expanded state, the first sub-housing 101 and the second sub-housing 102 unfold to an angle α, causing the first portion 201 and the second portion 202 to unfold relative to each other, driving the foldable portion 203 to unfold. At this point, the angle α between the first portion 201 and the second portion 202 is α.

[0097] Referring to Figures 3 and 4 , the first and second sub-housings 101, 102 rotate relative to each other via a hinge mechanism 300. This movement of the first and second sub-housings 101, 102 further unfolds the display screen 200 until the foldable electronic device is flattened. The hinge mechanism 300 includes a damping mechanism to ensure a smooth opening and closing motion and maintain a stable state.

[0098] When the electronic device is flattened, the angle between the first sub-housing 101 and the second sub-housing 102 is β. The foldable portion 203 is unfolded, and the first portion 201 and the second portion 202 are relatively unfolded. At this point, the angles between the first portion 201, the second portion 202, and the foldable portion 203 are all β, and the display screen 200 has a large display area, enabling large-screen display for the foldable electronic device and improving the user experience.

[0099] It should be noted that angles α and β are both the angles between the first sub-case 101 and the second sub-case 102. These angles are used to distinguish the angles between the first sub-case 101 and the second sub-case 102 when the foldable electronic device is in different states. Angle α refers to the angle between the first sub-case 101 and the second sub-case 102 when the foldable electronic device is in the semi-expanded state; angle β refers to the angle between the first sub-case 101 and the second sub-case 102 when the foldable electronic device is in the expanded state.

[0100] Figures 5 and 6 are cross-sectional views of a hinge mechanism in the related art. As shown in Figures 5 and 6, in the related art, a foldable electronic device uses a hinge mechanism to achieve switching between a folded state and an unfolded state; the hinge mechanism includes a first base 10, a swing arm 11, a first door panel 12 and a connecting block 13, the connecting block 13 is used to be fixedly connected to the middle frame of the foldable electronic device, and the swing arm 11 switches between an unfolded position and a folded position; one end of the swing arm 11 is rotatably connected to the first base 10, the other end of the swing arm 11 is slidably connected to the connecting block 13, and the connecting block 13 is rotatably connected to the first door panel 12 Then, the swing arm 11 is connected to the first door panel 12 at a high pair, and the first door panel 12 is driven by the swing arm 11 and the connecting block 13, so that the swing arm 11 is respectively connected to the first base 10, the connecting block 13, and the first door panel 12 by transmission. During use, the foldable electronic device in the folded state may accidentally fall. When falling, the first base 10 may land first, and the first base 10 may cause the swing arm 11 to slide relative to the connecting block 13, thereby causing the swing arm 11 to squeeze the space accommodating the display screen, causing the inner screen of the display screen to fail.

[0101] To this end, the embodiment of the present application further provides a rotating shaft mechanism 300 to solve the above-mentioned problem; the rotating shaft mechanism 300 provided in the embodiment of the present application is explained in detail below.

[0102] 7 to 12 , in one or more embodiments, the hinge mechanism 300 provided in the present application includes: a base 301, a door panel 302, a connecting member 303 and a first swing arm 304; the connecting member 303 is rotatably connected to the door panel 302; the first swing arm 304 is slidably connected to the connecting member 303, and the first swing arm 304 is also rotatably connected to the base 301. When the first swing arm 304 rotates from a folded position to an unfolded position relative to the base 301, the first swing arm 304 slides from a first position D to a second position E relative to the connecting member 303. A first limiting structure is provided between the first swing arm 304 and the door panel 302. When the first swing arm 304 is in the folded position, the first limiting structure can limit the first swing arm 304 from sliding relative to the connecting member 303 along a set direction, and the set direction is from the first position D to the second position E.

[0103] The hinge mechanism 300 in at least one embodiment of the present application eliminates a direct driving relationship between the first swing arm 304 and the door panel 302, that is, the first swing arm 304 does not participate in the driving of the door panel 302, and the movement of the door panel 302 does not require the participation of the first swing arm 304; when the first swing arm 304 is in the folded position, in the event of a fall, the first limiting structure provided between the first swing arm 304 and the door panel 302 can limit the sliding of the first swing arm 304 relative to the connecting member 303, thereby achieving braking of the movement of the first swing arm 304, reducing the possibility of the first swing arm 304 squeezing the space accommodating the display screen 200 in the event of a fall, thereby ensuring the structural integrity and functional stability of the display screen 200 and reducing the deformation caused by the fall at the first swing arm 304. It should be noted that the hinge mechanism 300 in the present application is not limited to the above-mentioned electronic devices, but can also be applied to other terminal devices having a hinge mechanism 300.

[0104] In some embodiments, when the first swing arm 304 is in a folded position relative to the base 301, the other end of the first swing arm 304 is in a first position D relative to the connecting member 303, as shown in FIG9 ; when the first swing arm 304 is in an unfolded position relative to the base 301, the other end of the first swing arm 304 is in a second position E relative to the connecting member 303, as shown in FIG10 ; the hinge mechanism 300 can realize connecting the first sub-shell 101 and the second sub-shell 102 respectively, so the number of the door panel 302, the connecting member 303 and the first swing arm 304 of the hinge mechanism 300 can all be multiple, for example, the door panel 302 There are two door panels 302, with the two door panels 302 symmetrically arranged about the centerline of the base 301; the centerline of the base 301 is parallel to the length of the base 301; at least two first swing arms 304 are also symmetrically arranged about the centerline of the base 301; at least two connectors 303 are symmetrically arranged about the centerline of the base 301; the first sub-shell 101 and the second sub-shell 102 are respectively connected with different connectors 303, and the connectors 303 and the first sub-shell 101, and the connectors 303 and the second sub-shell 102 can be fixed by screws or an integrated connection such as welding. The door panels 302 are used to support the flexible display screen to ensure that the flexible display screen is supported and maintained flat when the foldable electronic device is in the unfolded state. One end of the first swing arm 304 is rotatably connected to the base 301, and the other end opposite to the first swing arm 304 is slidably connected to the connecting member 303; the first swing arm 304 rotates relative to the base 301 to realize the switching of the state of the first swing arm 304 between the folded position and the unfolded position; the first limiting structure is used to limit the first swing arm 304 from sliding along the set direction relative to the connecting member 303 when the electronic device falls; when the electronic device is used normally, the first limiting structure does not limit the switching of the first swing arm 304 between the folded position and the unfolded position.

[0105] As shown in conjunction with Figures 11 and 12 , in some embodiments, the first position-limiting structure includes a first abutting surface 306 provided on the door panel 302 and a second abutting surface 307 provided on the first swing arm 304; the first abutting surface 306 can contact the second abutting surface 307. By providing the first abutting surface 306 and the second abutting surface 307 on the door panel 302 and the first swing arm 304, respectively, when the first swing arm 304 is in the folded position and falls, the first abutting surface 306 can abut the second abutting surface 307, thereby limiting further movement of the first swing arm 304 relative to the connecting member 303, thereby facilitating the structural and functional integrity of the display screen 200. Furthermore, the abutting structure of the first abutting surface 306 and the second abutting surface 307 facilitates manufacturing, resulting in a relatively simple and effective structure.

[0106] In one embodiment, the first abutting surface 306 can be a plane or a curved surface; the second abutting surface 307 can be a plane or a curved surface; of course, the first abutting surface 306 can also have a partial structure that is a plane and another part that is a curved surface, and the second abutting surface 307 can also have a partial structure that is a plane and another part that is a curved surface. When the first swing arm 304 is in the folded position, the first abutting surface 306 and the second abutting surface 307 may be in contact or have a certain gap therebetween. The gap may be set due to design requirements or formed due to manufacturing errors. However, when a fall occurs, since the base 301 of the hinge mechanism 300 touches the ground, the first abutting surface 306 and the second abutting surface 307 may be in contact, thereby realizing force transmission. Since the first swing arm 304 does not participate in driving the door panel 302 to rotate during use, the door panel 302 is not easy to rotate when it falls. Therefore, when the first abutting surface 306 on the door panel 302 contacts the second abutting surface 307 on the first swing arm 304, the door panel 302 can prevent the first swing arm 304 from sliding relative to the connecting member 303, thereby reducing the possibility of squeezing the space of the foldable part 203 that accommodates the flexible display screen, thereby ensuring the structural integrity and functional stability of the display screen 200, and improving the safety of the flexible display screen when it falls.

[0107] In some embodiments, there are multiple first abutting surfaces 306, and the multiple first abutting surfaces 306 are distributed in a stepped manner; there are multiple second abutting surfaces 307, and the multiple first abutting surfaces 306 are distributed in a stepped manner; the multiple first abutting surfaces 306 are arranged in a one-to-one correspondence with the multiple second abutting surfaces 307, that is, the number of first abutting surfaces is equal to the number of second abutting surfaces. In this way, the multiple stepped first abutting surfaces 306 correspond one-to-one to the multiple stepped second abutting surfaces 307. In this way, after the first abutting surfaces 306 at different locations abut against the corresponding second abutting surfaces 307, abutment at multiple locations is achieved, ensuring the effectiveness of the restricting structure function and facilitating the improvement of the door panel 302's limiting and stopping performance on the first swing arm 304. For example, as shown in Figures 11 and 12, there are two first abutting surfaces 306 and two second abutting surfaces 307.

[0108] In one embodiment, the length direction of the door panel 302 is parallel to the length direction of the base 301, while the width direction of the door panel 302 is perpendicular to the length direction of the door panel 302. The plurality of first abutting surfaces 306 are spaced apart along the width direction of the door panel 302, and the length direction of the base 301 is parallel to the AA direction. The plurality of second abutting surfaces 307 are spaced apart along a direction from one end of the first swing arm 304 to the other end opposite the first swing arm 304. It should be noted that when the first abutting surface 306 is a plane, the first abutting surface 306 can be perpendicular to the width direction of the door panel 302, or the angle formed between the first abutting surface 306 and the width direction of the door panel 302 can be an acute angle. The specific angle can be determined based on actual conditions, as long as the first swing arm 304 can be stopped in the event of a fall.

[0109] As shown in Figures 13, 14 and 15, in some embodiments, the door panel 302 has a first protruding structure 308, and an end face of the first protruding structure 308 forms a first abutting surface 306; the first swing arm 304 has a first recessed groove 309, and a groove wall of the first recessed groove 309 forms a second abutting surface 307; when the first swing arm 304 is in the folded position, the first protruding structure 308 extends into the first recessed groove 309, so that the first abutting surface 306 can contact the second abutting surface 307. After the first protruding structure 308 is inserted into the first recessed groove 309, the corresponding first abutting surface 306 and second abutting surface 307 are formed at the abutment between the first protruding structure 308 and the first recessed groove 309, and the cooperation between the first protruding structure 308 and the first recessed groove 309 can optimize the cooperation relationship between the door panel 302 and the first swing arm 304. Only when the first swing arm 304 is in the folded position can the first abutting surface 306 contact the second abutting surface 307. In this way, in the event of a fall, the door panel 302 can limit the movement of the first swing arm 304, thereby ensuring the structural integrity and functional stability of the display screen 200.

[0110] 14 and 15 , in one embodiment, the first protruding structure 308 can be in the shape of a long strip, and the first abutting surface 306 is an end surface of the first protruding structure 308 in the longitudinal direction; and the first recessed groove 309 is an open groove, so that when the first swing arm 304 switches between the folded position and the unfolded position, it is convenient for the first protruding structure 308 to gradually insert into the first recessed groove 309; the first recessed groove 309 includes three groove walls, wherein the two opposite side edges of one groove wall are respectively connected to the other two groove walls, and one of the groove walls is set at an angle to the other two groove walls, for example, the angle formed can be an acute angle, a right angle or an obtuse angle; one of the groove walls is the second abutting surface 307, and when the first abutting surface 306 contacts the second abutting surface 307, it can limit the first swing arm 304 from sliding along the set direction relative to the connecting member 303. It should be noted that the first protruding structure 308 may also have other shapes as long as they can match the first recessed groove 309, for example, it may be a cubic block structure; in addition, the first protruding structure 308 may be a straight strip structure or an arc-shaped strip structure, and the structure of the first recessed groove 309 may be adapted to the first protruding structure 308; in some other possible embodiments, the first recessed groove 309 may also be in the form of a through hole or a blind hole.

[0111] As shown in Figures 14 and 15, in some embodiments, the first swing arm 304 includes a first sub-section 310 and a second sub-section 311, the first sub-section 310 is connected to the second sub-section 311, and a step surface is formed at the connection between the first sub-section 310 and the second sub-section 311, the step surface forms another second abutting surface 307, and the surface at an edge of the door panel 302 forms another first abutting surface 306; the first recessed groove 309 is located on the second sub-section 311; the first sub-section 310 of the first swing arm 304 is connected to the base 301, and the second sub-section 311 is mainly used for sliding connection with the connecting member 303, and the connection between the first sub-section 310 and the second sub-section 311 A step surface is formed at the joint, and the step surface can form another second abutting surface 307, and the surface at one edge of the door panel 302 forms another first abutting surface 306. When the step surface abuts the surface at the edge of the door panel 302, the first abutting surface 306 and the second abutting surface 307 are abutted. In this way, in the event of a fall, the first protrusion structure 308 is inserted into the first recessed groove 309, and the step surface abuts the surface at the edge of the door panel 302, forming a one-to-one abutment form between two first abutting surfaces 306 and two second abutting surfaces 307, thereby further ensuring the structural integrity and functional stability of the display screen 200.

[0112] As shown in FIG14 , in one embodiment, the first sub-section 310 may have a curved surface structure 312. This facilitates the door panel 302 to support the flexible display screen and maintain its flatness after the hinge mechanism 300 is deployed. The shape and structure of the second sub-section 311 may be configured as needed. For example, the shape of the second sub-section 311 may be designed based on the sliding mode between the first swing arm 304 and the connecting member 303. When the sliding mode between the first swing arm 304 and the connecting member 303 is linear sliding, the second sub-section 311 may be designed to be primarily formed of a planar structure to enable linear motion of the second sub-section 311 relative to the connecting member 303. This facilitates linear motion between the second sub-section 311 and the connecting member 303. The second sub-section 311 has two opposing limit plate structures 313, each of which is a planar plate. The first recessed groove 309 is located between the two limit plate structures 313.

[0113] It should be noted that, in some other possible embodiments, the sliding mode between the first swing arm 304 and the connecting member 303 can also be curved surface sliding, that is, the first swing arm 304 swings relative to the connecting member 303, and the second sub-section 311 is mainly formed by a curved surface structure 312, and the curved surface structure 312 can be an arc surface. In this way, the rotation between the first swing arm 304 and the connecting member 303 is achieved through a virtual axis, that is, the rotation between the second sub-section 311 and the connecting member 303 is mainly achieved through curved surface cooperation.

[0114] Referring back to Figures 11 and 12 , in some embodiments, a second limiting structure is provided between the first swing arm 304 and the connecting member 303. When the first swing arm 304 is in the deployed position, the second limiting structure can restrict the first swing arm 304 from sliding in a set direction relative to the connecting member 303. This prevents the first swing arm 304 from excessively rotating relative to the base 301 and from excessively sliding relative to the connecting member 303, thereby limiting the extent of deployment of the first swing arm 304 and preventing over-deployment. Furthermore, in the event of a fall, when the base 301 first lands, the second limiting structure can also restrict the third abutting surface 314 from abutting the second abutting surface 307, thereby preventing the display screen 200 from bending in the opposite direction, thereby ensuring the functional stability of the display screen 200. When the first swing arm 304 is in the expanded position, the third abutting surface 314 and the second abutting surface 307 may be in contact or may have a certain gap therebetween. The gap may be set due to design requirements or may be formed due to manufacturing errors. However, when a fall occurs, the base 301 of the rotating shaft mechanism 300 touches the ground, so that the third abutting surface 314 can abut against the second abutting surface 307.

[0115] As shown in conjunction with Figures 16 and 17 , in some embodiments, the second position-limiting structure includes a third abutting surface 314 provided on the connecting member 303, and a second abutting surface 307 formed by a wall of the first recessed groove 309. The third abutting surface 314 is configured to contact the second abutting surface 307. The abutment between the third abutting surface 314 and the second abutting surface 307 limits the rotation angle of the first swing arm 304 relative to the base 301. That is, during the deployment of the first swing arm 304, the deployment degree of the first swing arm 304 is limited to prevent excessive deployment. In different states (folded or deployed), the first abutting surface 306 and the third abutting surface 314 can respectively abut the second abutting surface 307, thereby achieving position limiting in both the folded and deployed states.

[0116] It should be noted that the second limiting structure does not limit the first swing arm 304 from switching back and forth between the folded position and the unfolded position relative to the base 301 .

[0117] As shown in FIG. 16 , in some embodiments, the connecting member 303 includes a second protruding structure 315, one end surface of which forms a third abutting surface 314. When the first swing arm 304 is in the deployed position, the second protruding structure 315 extends into the first recessed groove 309, allowing the third abutting surface 314 to contact the second abutting surface 307. When the second protruding structure 315 is inserted into the first recessed groove 309, the surface of the second protruding structure 315 that abuts the first recessed groove 309 serves as the third abutting surface 314. Thus, when the first swing arm 304 is in different positions (i.e., the folded position and the deployed position), the first protruding structure 308 and the second protruding structure 315 are respectively inserted into the first recessed groove 309, thereby limiting the position of the first swing arm 304 relative to the connecting member 303. In one embodiment, the second protruding structure 315 is generally rectangular.

[0118] As shown in Figure 16, in some embodiments, the connecting member 303 includes a main body 316 and a limiting clamp arm 317, the main body 316 has a first slide groove 318, and the two opposite side walls of the first slide groove 318 are respectively connected to the limiting clamp arm 317, and the limiting clamp arm 317 is used to limit the first swing arm 304 in the first slide groove 318; the door panel 302 has an avoidance groove 319, and the avoidance groove 319 is used to accommodate the limiting clamp arm 317; part of the structure of the first swing arm 304 is located between the main body 316 and the door panel 302; the first protrusion structure 308 is located in the avoidance groove 319, and the second protrusion structure 315 is located in the first slide groove 318. In this way, the limiting clamp arm 317 is used to limit the first swing arm 304 in the first sliding groove 318, so that the first swing arm 304 can slide relative to the connecting member 303; and the avoidance groove 319 is provided to accommodate the limiting clamp arm 317 to achieve the avoidance of movement between the first swing arm 304 and the connecting member 303, and to facilitate the first protrusion structure 308 to be able to be inserted into the first recessed groove 309, and the second protrusion structure 315 to be able to be inserted into the first recessed groove 309.

[0119] 9 and 10 , as well as FIG14 and FIG16 , in one embodiment, the limiting plate structure 313 is clamped between the limiting clamp arm 317 and the bottom 320 of the first slide groove 318 , thereby enabling the first swing arm 304 to move along the guide direction of the first slide groove 318 ; the other end of the first swing arm 304 is the free end of the second sub-section 311 , the connection end of the second sub-section 311 is connected to one end of the first sub-section 310 , and the other end of the first sub-section 310 is hinged to the base 301 ; when the first swing arm 304 moves from the first position D to the second position E , the second sub-section 311 gradually inserts into the first slide groove 318 ; when the first swing arm 304 moves from the second position E to the first position D , the second sub-section 311 gradually exits the first slide groove 318 . The limiting clamp arm 317 can be primarily formed of a flat plate, and the first slide groove 318 can be linear, thereby facilitating linear sliding between the first swing arm 304 and the connecting member 303 . When the first swing arm 304 is in the folded state, the first position D is the position of the end surface of the other end of the first swing arm 304 in the first slide groove 318. When the first swing arm 304 is in the unfolded state, the second position E is the position of the end surface of the other end of the first swing arm 304 in the first slide groove 318.

[0120] It should be noted that in some other possible embodiments, the sliding manner between the first swing arm 304 and the connecting member 303 can be adapted to different types of first slide grooves 318 depending on the type of rotating shaft mechanism 300. That is, the first slide groove 318 can be linear or curved. When the first slide groove 318 is curved, the shape of the second sub-portion 311 needs to be adapted to the shape of the first slide groove 318. In addition, in the same rotating shaft mechanism 300, when there are multiple first swing arms 304, different first swing arms 304 can also be adapted to different slide groove types. That is, some first slide grooves 318 can be linear, while others can be curved.

[0121] 7 and 8 , and FIG18 and FIG19 , in some embodiments, the hinge mechanism 300 further includes a second swing arm 305, which is rotatably connected to the base 301 and rotatably connected to the connector 303. After the second swing arm 305 is rotatably connected to the base 301 and the connector 303, respectively, when the second swing arm 305 is in a folded position and an unfolded position relative to the base 301, the distance between the axis of the rotational connection between the second swing arm 305 and the base 301 and the axis of the rotational connection between the second swing arm 305 and the connector 303 remains unchanged. In this case, the first swing arm 304 is guaranteed to be able to slide relative to the connector 303. As shown in Figures 20 and 21, in one embodiment, the second swing arm 305 and the base 301 are rotationally connected by cooperating through the arc surface 321, that is, the rotational connection is achieved by adopting a virtual axis, and the second swing arm 305 and the connecting member 303 are hinged by a second pin shaft 328; the number of second swing arms 305 can be multiple, and at least two second swing arms 305 are also symmetrically arranged with the center line of the base 301 as the symmetry axis.

[0122] It should be noted that, in some other possible implementations, the second swing arm 305 and the base 301 may also be hinged via a pin structure.

[0123] Referring to Figures 13 and 17 , in some embodiments, the door panel 302 is connected to the connector 303 at a lower joint, and the second swing arm 305 is used to drive the door panel 302. When the hinge mechanism 300 switches between the folded state and the unfolded state, the door panel 302 is driven by the connector 303 and the second swing arm 305. Furthermore, when the hinge mechanism 300 switches between the folded state and the unfolded state, the door panel 302 is not driven by the first swing arm 304. That is, there is no direct movement relationship between the door panel 302 and the first swing arm 304. Thus, by designing a first limiting structure between the door panel 302 and the first swing arm 304, in the event of a fall, the base 301 is first subjected to the collision force, which is then transmitted in sequence to the first swing arm 304, the door panel 302, the connector 303, and the housing of the electronic device. This prevents relative sliding between the first swing arm 304 and the connecting block during a fall, thereby reducing the risk of failure of the display screen 200.

[0124] Please refer to Figures 13 and 17. In some embodiments, the door panel 302 is provided with a first curved surface structure 322, and the connecting member 303 is provided with a second curved surface structure 323, and the first curved surface structure 322 cooperates with the second curved surface structure 323; the first curved surface structure 322 and the second curved surface structure 323 cooperate with each other to achieve the door panel 302 being able to rotate relative to the connecting member 303; after a high-pair connection is adopted between the second swing arm 305 and the door panel 302 and a low-pair connection is adopted between the door panel 302 and the connecting member 303, the driving of the door panel 302 is achieved by the joint action of the second swing arm 305 and the connecting member 303.

[0125] As shown in conjunction with Figures 13, 18, and 20, in some embodiments, the second swing arm 305 is connected to the door panel 302 with a high-pair connection. The second swing arm 305 has a first through-hole 324, and the door panel 302 has a first connecting ear 325. The first connecting ear 325 has an arcuate through-hole 326. The first connecting ear 325 is inserted into the first through-hole 324. A first pin 327 is inserted into the arcuate through-hole 326. The first pin 327 is also provided on the second swing arm 305. When the second swing arm 305 rotates relative to the base 301, the first pin 327 can move along the arcuate direction of the arcuate through-hole 326. This facilitates driving between the second swing arm 305 and the door panel 302, enabling the door panel 302 to rotate relative to the connecting member 303.

[0126] It should be noted that, in some other possible embodiments, a low-pair connection may also be adopted between the second swing arm 305 and the door panel 302. Referring to FIG22 , in some other possible embodiments, the pivot mechanism 300 further includes a third swing arm 330, which is rotatably connected to the base 301 and movably connected to the door panel 302. For example, the third swing arm 330 is hinged to the base 301 and slidably connected to the door panel 302. When the third swing arm 330 is adopted, there may no longer be a driving relationship between the second swing arm 305 and the door panel 302. The door panel 302 can be driven by the third swing arm 330 and the connecting member 303. The second swing arm 305 is not responsible for driving the door panel 302, that is, the second swing arm 305 is only rotatably connected to the base 301 and the connecting member 303.

[0127] In some implementations, the door panel 302 is fixedly connected to the flexible display screen, and the door panel 302 and the flexible display screen can be fixed by bonding to enable the door panel 302 to support the flexible display screen when it is unfolded. For example, the door panel 302 of the hinge mechanism in Figures 9 and 10 can be fixedly connected to the flexible display screen.

[0128] It should be noted that Figures 23 and 24 are schematic diagrams of another variant structure of the hinge mechanism, and Figures 23 and 24 show a first abutting surface 306 and a second abutting surface 307. In conjunction with Figures 23 and 24, in other possible embodiments, the hinge mechanism 300 further includes a flexible support plate 329, which is used to support the flexible display screen of the electronic device. The flexible support plate 329 is fixedly connected to the door panel 302, and the door panel 302 is capable of moving relative to the flexible display screen. The length of the door panel 302 can be equal to the width of the flexible display screen in the longitudinal direction of the base 301, or the length of the door panel 302 can be designed according to other circumstances.

[0129] In the description of the specification of this application, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0130] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A rotating shaft mechanism, characterized in that: include: Pedestal; Door panels; A connecting piece, the connecting piece is rotatably connected to the door panel; a first swing arm, the first swing arm is slidably connected to the connecting member, the first swing arm is also rotatably connected to the base, when the first swing arm rotates from a folded position to an unfolded position relative to the base, the first swing arm slides from a first position to a second position relative to the connecting member; Wherein, a first limiting structure is provided between the first swing arm and the door panel. When the first swing arm is in the folded position, the first limiting structure can limit the first swing arm from sliding along a set direction relative to the connecting member, and the set direction is from the first position to the second position.

2. The rotating shaft mechanism according to claim 1, characterized in that: The first limiting structure includes a first abutting surface arranged on the door panel, and a second abutting surface arranged on the first swing arm; the first abutting surface can contact the second abutting surface.

3. The rotating shaft mechanism according to claim 2, characterized in that: There are multiple first abutting surfaces, and the multiple first abutting surfaces are distributed in a stepped manner; There are multiple second abutting surfaces, and the multiple second abutting surfaces are distributed in a stepped manner; The plurality of first abutting surfaces and the plurality of second abutting surfaces are arranged in one-to-one correspondence.

4. The rotating shaft mechanism according to claim 2, characterized in that: The door panel has a first protruding structure, and an end surface of the first protruding structure forms a first abutting surface; The first swing arm has a first concave groove, and a groove wall of the first concave groove forms a second abutting surface; When the first swing arm is in the folded position, the first protruding structure extends into the first recessed groove, so that the first abutting surface can contact the second abutting surface.

5. The rotating shaft mechanism according to claim 4, characterized in that: The first swing arm includes a first sub-section and a second sub-section, the first sub-section is connected to the second sub-section, a step surface is formed at the connection between the first sub-section and the second sub-section, the step surface forms another second abutment surface, and the surface at an edge of the door panel forms another first abutment surface; the first recessed groove is located on the second sub-section.

6. The rotating shaft mechanism according to claim 4, characterized in that: A second limiting structure is provided between the first swing arm and the connecting member. When the first swing arm is in the deployed position, the second limiting structure can limit the first swing arm from sliding relative to the connecting member along the set direction.

7. The rotating shaft mechanism according to claim 6, characterized in that: The second limiting structure includes a third abutting surface provided on the connecting member, and the second abutting surface formed by a groove wall of the first concave groove; The third abutting surface is used to contact the second abutting surface.

8. The rotating shaft mechanism according to claim 7, characterized in that: The connecting member has a second protruding structure, and one end surface of the second protruding structure forms the third abutting surface; When the first swing arm is in the expanded position, the second protrusion structure extends into the first recessed groove, so that the third abutting surface can contact the second abutting surface.

9. The rotating shaft mechanism according to claim 8, characterized in that: The connecting member comprises a main body and a limiting clamp arm, the main body has a first slide slot, two opposite side walls of the first slide slot are respectively connected with the limiting clamp arms, and the limiting clamp arms are used to limit the first swing arm in the first slide slot; The door panel has an avoidance groove, and the avoidance groove is used to accommodate the limit clamp arm; Part of the structure of the first swing arm is located between the main body and the door panel; The first protruding structure is located in the avoidance groove, and the second protruding structure is located in the first sliding groove.

10. The rotating shaft mechanism according to claim 9, characterized in that: The first slide groove is a linear slide groove, which is used to enable the first swing arm to perform linear motion relative to the connecting member; Alternatively, the first sliding groove is a curved sliding groove, which is used to enable the first swing arm to swing relative to the connecting member.

11. The rotating shaft mechanism according to any one of claims 1 to 10, characterized in that: The rotating shaft mechanism also includes a second swing arm, the second swing arm is rotatably connected to the base, and the second swing arm is rotatably connected to the connecting member.

12. The rotating shaft mechanism according to claim 11, characterized in that: The door panel is connected to the lower pair of the connecting member, and the second swing arm is used to drive the door panel to move.

13. The rotating shaft mechanism according to claim 12, characterized in that: The second swing arm is connected to the door panel high pair, wherein the second swing arm has a first through hole, the door panel has a first connecting ear, the first connecting ear has an arc-shaped through hole, the first connecting ear is inserted into the first through hole, a first pin shaft is passed through the arc-shaped through hole, and the first pin shaft is also penetrated on the second swing arm.

14. The rotating shaft mechanism according to claim 12, characterized in that: The door panel is provided with a first curved surface structure, and the connecting piece is provided with a second curved surface structure, and the first curved surface structure matches with the second curved surface structure.

15. The rotating shaft mechanism according to claim 11, characterized in that: The rotating shaft mechanism also includes a third swing arm, the third swing arm is rotatably connected to the base, and the third swing arm is movably connected to the door panel.

16. The rotating shaft mechanism according to any one of claims 1 to 10, characterized in that: The hinge mechanism also includes a flexible support plate, and the flexible support plate is used to support a flexible display screen of the electronic device; the flexible support plate is fixedly connected to the door panel.

17. A rotating shaft mechanism, characterized in that: include: Pedestal; Door panels; A connecting piece, the connecting piece is rotatably connected to the door panel; a first swing arm, the first swing arm is slidably connected to the connecting member, the first swing arm is also rotatably connected to the base, when the first swing arm rotates from a folded position to an unfolded position relative to the base, the first swing arm slides from a first position to a second position relative to the connecting member; Wherein, a first limiting structure is provided between the first swing arm and the door panel, and when the first swing arm is in the folded position, the first limiting structure can limit the first swing arm from sliding along a set direction relative to the connecting member, and the set direction is a direction from the first position to the second position; The first limiting structure includes a first abutting surface arranged on the door panel, and a second abutting surface fixed on the first swing arm; the first abutting surface can contact the second abutting surface.

18. The rotating shaft mechanism according to claim 17, characterized in that: There are multiple first abutting surfaces, and the multiple first abutting surfaces are distributed in a stepped manner; There are multiple second abutting surfaces, and the multiple second abutting surfaces are distributed in a stepped manner; The plurality of first abutting surfaces and the plurality of second abutting surfaces are arranged in one-to-one correspondence.

19. The rotating shaft mechanism according to claim 17, characterized in that: The door panel has a first protruding structure, and an end surface of the first protruding structure forms a first abutting surface; The first swing arm has a first concave groove, and a groove wall of the first concave groove forms a second abutting surface; When the first swing arm is in the folded position, the first protruding structure extends into the first recessed groove, so that the first abutting surface can contact the second abutting surface.

20. The rotating shaft mechanism according to claim 19, characterized in that: The first swing arm includes a first sub-section and a second sub-section, the first sub-section is connected to the second sub-section, a step surface is formed at the connection between the first sub-section and the second sub-section, the step surface forms another second abutment surface, and the surface at an edge of the door panel forms another first abutment surface; the first recessed groove is located on the second sub-section.

21. The rotating shaft mechanism according to claim 19, characterized in that: A second limiting structure is provided between the first swing arm and the connecting member. When the first swing arm is in the deployed position, the second limiting structure can limit the first swing arm from sliding relative to the connecting member along the set direction.

22. The rotating shaft mechanism according to claim 21, characterized in that: The second limiting structure includes a third abutting surface provided on the connecting member, and the second abutting surface formed by a groove wall of the first concave groove; The third abutting surface is used to contact the second abutting surface.

23. The rotating shaft mechanism according to claim 22, characterized in that: The connecting member has a second protruding structure, and one end surface of the second protruding structure forms the third abutting surface; When the first swing arm is in the expanded position, the second protrusion structure extends into the first recessed groove, so that the third abutting surface can contact the second abutting surface.

24. The rotating shaft mechanism according to claim 23, characterized in that: The connecting member comprises a main body and a limiting clamp arm, the main body has a first slide slot, two opposite side walls of the first slide slot are respectively connected with the limiting clamp arms, and the limiting clamp arms are used to limit the first swing arm in the first slide slot; The door panel has an avoidance groove, and the avoidance groove is used to accommodate the limit clamp arm; Part of the structure of the first swing arm is located between the main body and the door panel; The first protruding structure is located in the avoidance groove, and the second protruding structure is located in the first sliding groove.

25. The rotating shaft mechanism according to claim 24, characterized in that: The first slide groove is a linear slide groove, which is used to enable the first swing arm to perform linear motion relative to the connecting member; Alternatively, the first sliding groove is a curved sliding groove, which is used to enable the first swing arm to swing relative to the connecting member.

26. The rotating shaft mechanism according to any one of claims 17 to 25, characterized in that: The rotating shaft mechanism also includes a second swing arm, the second swing arm is rotatably connected to the base, and the second swing arm is rotatably connected to the connecting member.

27. The rotating shaft mechanism according to claim 26, characterized in that: The door panel is connected to the lower pair of the connecting member, and the second swing arm is used to drive the door panel to move.

28. The rotating shaft mechanism according to claim 27, characterized in that: The second swing arm is connected to the door panel high pair, wherein the second swing arm has a first through hole, the door panel has a first connecting ear, the first connecting ear has an arc-shaped through hole, the first connecting ear is inserted into the first through hole, a first pin shaft is passed through the arc-shaped through hole, and the first pin shaft is also penetrated on the second swing arm.

29. The rotating shaft mechanism according to claim 27, characterized in that: The door panel is provided with a first curved surface structure, and the connecting piece is provided with a second curved surface structure, and the first curved surface structure matches with the second curved surface structure.

30. The rotating shaft mechanism according to claim 26, characterized in that: The rotating shaft mechanism also includes a third swing arm, the third swing arm is rotatably connected to the base, and the third swing arm is movably connected to the door panel.

31. The rotating shaft mechanism according to any one of claims 17 to 25, characterized in that: The hinge mechanism also includes a flexible support plate, and the flexible support plate is used to support a flexible display screen of the electronic device; the flexible support plate is fixedly connected to the door panel.

32. An electronic device, characterized in that: It includes a flexible display screen, a shell and a hinge mechanism as described in any one of claims 1-31, the shell includes a first sub-shell and a second sub-shell, the first sub-shell and the second sub-shell are respectively connected to the hinge mechanism, and the first sub-shell and the second sub-shell can rotate relative to each other through the hinge mechanism; the flexible display screen is respectively connected to the first sub-shell and the second sub-shell.

33. The electronic device according to claim 32, characterized in that The door panel is fixedly connected to the flexible display screen; Alternatively, the door panel can move relative to the flexible display screen.

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