Shaft mechanism and electronic equipment

Abstract

The present application discloses a hinge mechanism and an electronic device, belonging to the technical field of electronic devices. The hinge mechanism includes: a base, a door panel, a connecting member and a first swing arm; the connecting member is rotatably connected to the door panel; 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; a first limiting structure is provided between the first swing arm and the door panel, and when the first swing arm is in a folded position, the first limiting structure can limit the first swing arm from sliding relative to the connecting member along a set direction, and the set direction is the direction from the first position to the second position. The electronic device includes a flexible display screen, a housing and the hinge mechanism, and the first sub-shell and the second sub-shell are respectively connected to the hinge mechanism. The present application can realize the motion braking of the first swing arm, reduce 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 of the display screen and the functional stability.

Description

[0001] This application is a divisional application of the invention patent application with the application date of July 17, 2023, application number 202310871855.0, and invention name “Rotating shaft mechanism and electronic device”. 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, tablet computers, etc.) are gradually improved, and a new form of electronic device, namely, foldable electronic device, has emerged. The display screen of the foldable electronic device mainly has an unfolded state and a folded state. In order to achieve the conversion between unfolding and folding, the foldable electronic device adopts a hinge mechanism to achieve 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 land 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. Summary of the invention

[0004] The present application provides a hinge mechanism and an electronic device, which can solve to a certain extent the technical problem that in the event of a fall, a swing arm slides relative to a connecting block, thereby causing the swing arm to squeeze the space accommodating a display screen, causing the inner screen of the display screen to fail.

[0005] The technical solution is as follows:

[0006] 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;

[0007] The connecting member is rotatably connected to the door panel;

[0008] 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;

[0009] 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.

[0010] By adopting the above scheme, 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 of the display screen and the functional stability.

[0011] 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.

[0012] By adopting the above solution, by respectively setting the first abutting surface and the second abutting surface on the door panel and the first swing arm, when the first swing arm is in the folded position, when a fall occurs, the first abutting surface can abut against the second abutting surface, thereby limiting the first swing arm from continuing to move relative to the connecting member, which is conducive to ensuring the structural and functional integrity of the display screen. In addition, the structure in which the first abutting surface abuts against the second abutting surface is also conducive to manufacturing, and the structure is relatively simple and effective.

[0013] In some implementations, there are multiple first abutment surfaces, and the multiple first abutment surfaces are distributed in a stepped manner;

[0014] There are multiple second abutting surfaces, and the multiple second abutting surfaces are distributed in a stepped manner;

[0015] The plurality of first abutting surfaces and the plurality of second abutting surfaces are arranged in one-to-one correspondence.

[0016] By adopting the above scheme, a plurality of first stepped abutting surfaces are used which correspond one to one to a plurality of second stepped abutting surfaces. In this way, after the first abutting surfaces at different locations 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 limiting and stopping performance of the door panel on the first swing arm.

[0017] 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;

[0018] The first swing arm has a first concave groove, and a groove wall of the first concave groove forms a second abutting surface;

[0019] 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.

[0020] 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, so that after the first protruding structure is inserted into the first recessed groove, corresponding first abutting surfaces and second abutting surfaces are formed at the abutment between the first protruding structure and the first recessed groove, and the first protruding structure cooperates with the first recessed groove to optimize the matching relationship between the door panel and the first swing arm, and the first abutting surface can contact the second abutting surface only when the first swing arm is in a folded position, so that 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.

[0021] 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.

[0022] By adopting the above scheme, the first sub-portion of the first swing arm is connected to the base, and the second sub-portion is mainly used for sliding connection with the connecting piece, and a step surface is formed at the connection between the first sub-portion and the second sub-portion, and the step surface can form another second abutting surface, and the surface at an edge of the door panel forms another first abutting surface, so that after the step surface abuts with the surface at the edge of the door panel, the first abutting surface and the second abutting surface are abutted, so that in the case of a fall, the first protrusion structure is inserted into the first recessed groove, and the step surface abuts with the surface at the edge of the door panel, thus 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.

[0023] In some implementations, a second limiting structure is provided between the first swing arm and the connecting member, and when the first swing arm is in the deployed position, the second limiting structure can limit the first swing arm from sliding along the set direction relative to the connecting member.

[0024] 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 to prevent excessive expansion.

[0025] 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;

[0026] The third abutting surface is used to contact the second abutting surface.

[0027] 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 unfolding process of the first swing arm, the unfolding degree of the first swing arm is limited to prevent excessive unfolding; in this way, in different states, the first abutting surface and the third abutting surface can respectively abut against the second abutting surface, thereby cleverly realizing the limitation in the folded and unfolded states.

[0028] 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;

[0029] 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.

[0030] By adopting the above scheme, the second protrusion structure is inserted into the first recessed groove, and the position where the second protrusion structure abuts the first recessed groove forms a third abutment surface. 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.

[0031] In some implementations, the connecting member includes a main body and a limiting clamp arm, the main body has a first slide groove, two opposite side walls of the first slide groove are respectively connected to the limiting clamp arms, and the limiting clamp arms are used to limit the first swing arm in the first slide groove;

[0032] The door panel has an avoidance groove, and the avoidance groove is used to accommodate the limit clamp arm;

[0033] Part of the structure of the first swing arm is located between the main body and the door panel;

[0034] The first protruding structure is located in the avoidance groove, and the second protruding structure is located in the first sliding groove.

[0035] By adopting the above scheme, the first swing arm is limited in the first sliding groove by using the limiting clamp arm to realize the sliding of the first swing arm relative to the connecting member; and the avoidance groove is provided to accommodate the limiting clamp arm to realize the avoidance of movement between the first swing arm and the connecting member, and facilitate the first protrusion structure to be inserted into the first recessed groove, and the second protrusion structure to be inserted into the first recessed groove.

[0036] In some implementations, the first slide slot is a linear slide slot, which is used to enable the first swing arm to perform linear motion relative to the connecting member;

[0037] 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.

[0038] By adopting the above 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 the number of first swing arms is multiple, 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.

[0039] 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.

[0040] By adopting the above scheme, after the second swing arm is rotationally connected to the base and the connecting member respectively, when the second swing arm is in a folded position and an 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.

[0041] 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.

[0042] 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 piece and the second swing arm; in addition, when the hinge mechanism switches between the folded state and the unfolded state, the door panel is not driven by 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 piece 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 when falling, thereby reducing the risk of display screen failure.

[0043] 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 shaft is passed through the arc-shaped through hole, and the first pin shaft is also penetrated on the second swing arm.

[0044] 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.

[0045] 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 matches the second curved surface structure.

[0046] 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.

[0047] In some implementations, the pivot mechanism further 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.

[0048] By adopting the above solution, the driving of the door panel can be achieved by the joint action of the third swing arm and the connecting member; while the second swing arm is not responsible for the driving of the door panel, that is, the second swing arm is only rotatably connected to the base and the connecting member respectively.

[0049] In some implementations, the hinge mechanism further 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.

[0050] By adopting the above solution, the flexible support plate can better support the flexible display screen.

[0051] A 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.

[0052] By adopting the above scheme, 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 of the display screen and the functional stability.

[0053] In some implementations, the door panel is fixedly connected to the flexible display screen;

[0054] Alternatively, the door panel can move relative to the flexible display screen.

[0055] 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

[0056] Figure 1 is a schematic diagram of the structure of an electronic device provided by an embodiment of the present application in a folded state;

[0057] Figure 2is a schematic diagram of the structure of an electronic device provided by an embodiment of the present application in a semi-expanded state;

[0058] Figure 3 is a schematic structural diagram of an electronic device provided in an embodiment of the present application in an unfolded state;

[0059] Figure 4 yes Figure 3 a schematic diagram of the exploded structure of the electronic device shown;

[0060] Figure 5 It is a cross-sectional view of the rotating shaft mechanism in the related art at the sliding fit between the swing arm and the connecting piece;

[0061] Figure 6 It is a cross-sectional view of the rotating shaft mechanism in the related art at the connection between the swing arm and the door panel high pair;

[0062] Figure 7 It is a partial exploded view of a local rotating shaft mechanism in an embodiment of the present application;

[0063] Figure 8 It is a partial exploded view from another perspective of a local rotating shaft mechanism in an embodiment of the present application;

[0064] Fig. 9 is a cross-sectional view of the rotating shaft mechanism in a 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;

[0065] Fig.10 is a cross-sectional view of the rotating shaft mechanism in the unfolded state in the embodiment of the present application at the position where the first swing arm and the first slide groove cooperate;

[0066] Fig.11 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 the embodiment of the present application;

[0067] Fig.12 is a cross-sectional view of the rotating shaft mechanism in the unfolded state at the first recessed groove of the first swing arm in the embodiment of the present application;

[0068] Fig.13 It is a schematic diagram of the partial structure of the door panel in the embodiment of the present application;

[0069] Fig.14 is a schematic structural diagram of the first swing arm in an embodiment of the present application;

[0070] Fig.15 is a structural schematic diagram of the first swing arm in another perspective in the embodiment of the present application;

[0071] Fig.16 is a schematic diagram of a partial structure of a connecting member in an embodiment of the present application;

[0072] Fig.17is a partial structural schematic diagram of a connecting member in another perspective in an embodiment of the present application;

[0073] Fig.18 is a cross-sectional view of the rotating shaft mechanism in a folded state at the connection between the second swing arm and the door panel in the embodiment of the present application;

[0074] Fig.19 is a cross-sectional view of the rotating shaft mechanism in the unfolded state at the connection between the second swing arm and the door panel in the embodiment of the present application;

[0075] Fig. 20 is a schematic structural diagram of the second swing arm in an embodiment of the present application;

[0076] Fig.21 is a structural schematic diagram of the second swing arm in another perspective in the embodiment of the present application;

[0077] Fig. 22 It is a partial structural schematic diagram (exploded diagram) of a rotating shaft mechanism with a third swing arm in an embodiment of the present application;

[0078] Fig.23 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;

[0079] Fig.24 This 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 the embodiment of the present application.

[0080] The meanings of the figures are as follows:

[0081] 10. first base; 11. swing arm; 12. first door panel; 13. connecting block;

[0082] 101, first subshell; 102, second subshell;

[0083] 200, display screen; 201, first part; 202, second part; 203, foldable part;

[0084] 300, shaft mechanism; 301, base; 302, door panel; 303, connecting piece; 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-unit; 311, second sub-unit; 312, curved surface structure; 313, limit plate structure; 314, third abutting surface; 315, first Two raised structures; 316, main body; 317, limit 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

[0085] In order to make the objectives, technical solutions and advantages of the present application more clear, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0086] 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 only 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, the words "first" and "second" are used to distinguish between the same items or similar items with basically the same functions and effects. Those skilled in the art can understand that the words "first" and "second" do not limit the quantity and execution order, and the words "first" and "second" do not limit them to be different.

[0087] See also Figures 1 to 3 , Figure 1 is a schematic diagram of the structure of an electronic device in a folded state provided by an embodiment of the present application, Figure 2 is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application in a semi-expanded state, Figure 3 It is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application in an unfolded state.

[0088] 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.

[0089] 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 the display screen 200 is respectively 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.

[0090] 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.

[0091] Figure 1 The foldable electronic device is shown in a folded state. Figure 2 The foldable electronic device is shown in a semi-expanded state. Figure 3 The foldable electronic device is shown in an unfolded state. Figure 2 The unfolding angle α of the foldable electronic device shown is 90 degrees. Figure 3 The unfolding angle β of the foldable electronic device shown is degrees.

[0092] It should be noted that the angles illustrated in the embodiments of the present application are allowed to have slight deviations. Figure 2 The unfolding angle α of the foldable electronic device shown 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. Figure 3 The unfolding angle β of the foldable electronic device shown 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, etc. The angles described below can be understood in the same way.

[0093] See also Figure 4 , Figure 4 yes Figure 3 Schematic diagram of the exploded structure of the electronic device shown, Figure 4Only part of the rotating shaft mechanism 300 is shown; the first sub-shell 101 and the second sub-shell 102 are respectively installed on both sides of the rotating shaft mechanism 300 along the BB direction, and the display screen 200 includes a first part 201, a second part 202 and a foldable part 203. The foldable part 203 is located between the first part 201 and the second part 202, and the foldable part 203 can be bent along the AA direction. The first part 201, the second part 202 and the foldable part 203 together constitute the display screen 200. In this embodiment, the display screen 200 adopts a flexible display screen, for example, an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode or an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode (mini organic light-emitting diode) display screen, a micro organic light-emitting diode (micro organic light-emitting diode) display screen, a micro organic light-emitting diode (micro organic light-emitting diode) display screen, and a quantum dot light emitting diode (quantum dot light emitting diodes, QLED) display screen.

[0094] The first sub-shell 101 and the second sub-shell 102 are relatively close to each other to drive the display screen 200 to fold, so that the foldable electronic device can be folded. When the foldable electronic device is in the folded state, the foldable portion 203 of the display screen 200 is bent, and the first portion 201 and the second portion 202 are arranged relatively. At this time, the display screen 200 is between the first sub-shell 101 and the second sub-shell 102, which can greatly reduce the probability of the display screen 200 being damaged, and effectively protect the display screen 200.

[0095] Please also read Figure 2 and Figure 4 , the first sub-shell 101 and the second sub-shell 102 rotate relative to each other through the hinge mechanism 300, and the first sub-shell 101 and the second sub-shell 102 move away from each other to drive the display screen 200 to unfold, so that the foldable electronic device is unfolded to a semi-expanded state. When the foldable electronic device is in the semi-expanded state, the first sub-shell 101 and the second sub-shell 102 unfold to an angle of α, the first part 201 and the second part 202 unfold relative to each other, and drive the foldable part 203 to unfold. At this time, the angle between the first part 201 and the second part 202 is α.

[0096] Please also read Figure 3 and Figure 4The first sub-shell 101 and the second sub-shell 102 rotate relative to each other through the hinge mechanism 300, and the first sub-shell 101 and the second sub-shell 102 move away from each other to drive the display screen 200 to further unfold until the foldable electronic device is flattened. The hinge mechanism 300 has a damping mechanism to achieve the opening and closing feel and state maintenance during the rotation process.

[0097] When the electronic device is in a flattened state, the angle between the first sub-shell 101 and the second sub-shell 102 is β. The foldable portion 203 is unfolded, and the first portion 201 and the second portion 202 are relatively unfolded. At this time, 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, realizing a large-screen display of the foldable electronic device, and improving the user experience.

[0098] It should be noted that the angle α and the angle β are both the angles between the first sub-shell 101 and the second sub-shell 102, which are only used to distinguish the different angles between the first sub-shell 101 and the second sub-shell 102 in different states of the foldable electronic device. The angle α refers to the angle between the first sub-shell 101 and the second sub-shell 102 when the foldable electronic device is in a semi-expanded state; the angle β refers to the angle between the first sub-shell 101 and the second sub-shell 102 when the foldable electronic device is in an expanded state.

[0099] Figure 5 and Figure 6 It is a cross-sectional view of the rotating shaft mechanism in the related art, combined with Figure 5 and Figure 6 As shown, in the related art, the foldable electronic device adopts a hinge mechanism to realize the switching between the folded state and the 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 the unfolded position and the 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, the connecting block 13 is rotatably connected to the first door panel 12, and the swing arm 11 is rotatably connected to the first door panel 12. 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; during use, the foldable electronic device in a 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.

[0100] 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.

[0101] Combination Figures 7 to 12 As shown, in one or more embodiments, the hinge mechanism 300 provided by 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; wherein 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.

[0102] The hinge mechanism 300 in at least one embodiment of the present application makes it so that there is no 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 case of falling, the first limit 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 the movement braking of the first swing arm 304, reducing the possibility of the first swing arm 304 squeezing the space containing the display screen 200 in the case of falling, 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 equipment, but can also be applied to other terminal equipment having the hinge mechanism 300.

[0103] In some embodiments, when the first swing arm 304 is in the folded position relative to the base 301, the other end of the first swing arm 304 is located at the first position D relative to the connecting member 303, see Fig. 9 When the first swing arm 304 is in the extended position relative to the base 301, the other end of the first swing arm 304 is located at a second position E relative to the connecting member 303, see Fig.10As shown; the hinge mechanism 300 can connect the first sub-shell 101 and the second sub-shell 102 respectively, so the number of door panels 302, connecting members 303 and first swing arms 304 of the hinge mechanism 300 can all be multiple. For example, the number of door panels 302 is two, and the two door panels 302 are symmetrically arranged with the center line of the base 301 as the axis of symmetry; the center line of the base 301 is parallel to the length direction of the base 301; at least two first swing arms 304 are also symmetrically arranged with the center line of the base 301 as the axis of symmetry; at least two connecting members 303 are symmetrically arranged with the center line of the base 301 as the axis of symmetry; the first sub-shell 101 and the second sub-shell 102 are respectively connected with different connecting members 303, and the fixing method between the connecting member 303 and the first sub-shell 101, and the connecting member 303 and the second sub-shell 102 can be screw connection, or it can be an integrated connection method such as welding. The door panel 302 is 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 of 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 achieve the state switching 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 first swing arm 304 from switching between the folded position and the unfolded position.

[0104] Combination Fig.11 and Fig.12 As shown, 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. In this way, 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, when it falls, the first abutting surface 306 can abut against the second abutting surface 307, thereby limiting the first swing arm 304 from continuing to move relative to the connecting member 303, thereby facilitating the integrity of the structure and function of the display screen 200. In addition, the structure in which the first abutting surface 306 abuts against the second abutting surface 307 is also convenient for manufacturing, and the structure is relatively simple and effective.

[0105] 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 of a plane and another part of a curved surface, and the second abutting surface 307 can also have a partial structure of a plane and another part of 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 with each other or have a certain gap therebetween, and the gap may be set due to design requirements or formed due to manufacturing errors. However, when falling 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 with each other to achieve 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 falling. 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 accommodating 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 falling.

[0106] 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, so that the multiple first abutting surfaces 306 in a stepped manner correspond one-to-one to the multiple second abutting surfaces 307 in a stepped manner, so that after the first abutting surfaces 306 at different locations abut against the corresponding second abutting surfaces 307, abutment at multiple positions is achieved, thereby ensuring the effectiveness of the limiting structure function and facilitating improving the limiting and stopping performance of the door panel 302 on the first swing arm 304. For example, Fig.11 and Fig.12 As shown, the number of the first abutting surfaces 306 is two, and the number of the second abutting surfaces 307 is two.

[0107] In one embodiment, the length direction of the door panel 302 is parallel to the length direction of the base 301, and the width direction of the door panel 302 is perpendicular to the length direction of the door panel 302. A 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; a plurality of second abutting surfaces 307 are spaced apart along the direction from one end of the first swing arm 304 to the other end opposite to 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 is an acute angle, which can be determined according to actual conditions, as long as the first swing arm 304 can be stopped in the case of a fall.

[0108] Combination Fig.13 , Fig.14 and Fig.15 As shown, 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 the second abutting surface 307 are formed at the abutment between the first protruding structure 308 and the first recessed groove 309, and the first protruding structure 308 and the first recessed groove 309 can cooperate to optimize the matching relationship between the door panel 302 and the first swing arm 304. Only when the first swing arm 304 is in the folded position, the first abutting surface 306 can 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.

[0109] Combination Fig.14 and Fig.15As shown, 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 length 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 sides of one groove wall are respectively connected to the other two groove walls, and one of the groove arms is respectively arranged at an angle with 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 a 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, etc.; 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 compatible with the first protruding structure 308; in some other possible implementations, the first recessed groove 309 may also be in the form of a through hole or a blind hole.

[0110] Combination Fig.14 and Fig.15 As shown, in some embodiments, the first swing arm 304 includes a first sub-portion 310 and a second sub-portion 311, the first sub-portion 310 is connected to the second sub-portion 311, a step surface is formed at the connection between the first sub-portion 310 and the second sub-portion 311, the step surface forms another second abutting surface 307, and a 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-portion 311; the first sub-portion 310 of the first swing arm 304 is connected to the base 301, and the second sub-portion 311 is mainly used for sliding connection with the connecting member 303, and the connection between the first sub-portion 310 and the second sub-portion 311 forms a 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, so that when the step surface abuts against the surface at the edge of the door panel 302, the first abutting surface 306 and the second abutting surface 307 are abutted, so that in the case of a fall, the first protrusion structure 308 is inserted into the first recessed groove 309, and the step surface abuts against the surface at the edge of the door panel 302, thus 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.

[0111] See also Fig.14As shown, in one embodiment, the first sub-section 310 may have a curved surface structure 312, which is conducive to achieving that after the hinge mechanism 300 is unfolded, the door panel 302 can support the flexible display screen to make it flat; and the shape structure of the second sub-section 311 can be set as needed, for example, the shape of the second sub-section 311 is designed according to 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, in order to make the second sub-section 311 move linearly relative to the connecting member 303, the second sub-section 311 can be designed to be mainly formed by a plane structure, which is conducive to achieving linear motion between the second sub-section 311 and the connecting member 303; the second sub-section 311 has a limit plate structure 313 on both opposite sides, and the limit plate structure 313 is in the form of a flat plate. The first recessed groove 309 is located between the two limit plate structures 313.

[0112] 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-portion 311 is mainly formed by a curved surface structure 312, and the curved surface structure 312 can be an arc surface, so that the first swing arm 304 and the connecting member 303 can rotate through a virtual axis, that is, the second sub-portion 311 and the connecting member 303 are mainly realized through curved surface matching.

[0113] Please return Fig.11 and Fig.12 , combined with Fig.11 and Fig.12 As shown, in some embodiments, there is a second limiting structure between the first swing arm 304 and the connecting member 303, and when the first swing arm 304 is in the unfolded position, the second limiting structure can limit the first swing arm 304 from sliding along a set direction relative to the connecting member 303. In this way, the first swing arm 304 can be prevented from excessively rotating relative to the base 301, and the first swing arm 304 can be prevented from excessively sliding relative to the connecting member 303, thereby limiting the unfolding degree of the first swing arm 304 and preventing excessive unfolding; in addition, in the case of falling, when the base 301 first lands, the second limiting structure can also be limited to the third abutting surface 314 abutting against the second abutting surface 307, so as to prevent 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 abutment surface 314 and the second abutment surface 307 may be in contact with each other or have a certain gap therebetween. The gap may be set due to design requirements or may be formed due to manufacturing errors. However, when falling occurs, the base 301 of the pivot mechanism 300 touches the ground, so that the third abutment surface 314 can abut against the second abutment surface 307.

[0114] Combination Fig.16 and Fig.17 As shown, 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 groove wall of the first recessed groove 309; the third abutting surface 314 is used to contact the second abutting surface 307. In this way, the third abutting surface 314 is abutted against the second abutting surface 307 to limit the rotation angle of the first swing arm 304 relative to the base 301, that is, during the unfolding process of the first swing arm 304, the unfolding degree of the first swing arm 304 is limited to prevent excessive unfolding; in different states (folded or unfolded), the first abutting surface 306 and the third abutting surface 314 can respectively abut against the second abutting surface 307, so as to realize the position limiting in the folded and unfolded states in seconds.

[0115] 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 .

[0116] See also Fig.16 As shown, in some embodiments, the connecting member 303 has a second protruding structure 315, and one end surface of the second protruding structure 315 forms a third abutting surface 314; when the first swing arm 304 is in the unfolded position, the second protruding structure 315 extends into the first recessed groove 309, so that the third abutting surface 314 can 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 abutting against the first recessed groove 309 is the third abutting surface 314, so that when the first swing arm 304 is in different positions (i.e., the folded position and the unfolded position), the first protruding structure 308 and the second protruding structure 315 are respectively inserted into the first recessed groove 309, thereby realizing the limitation of the first swing arm 304 relative to the connecting member 303. In one embodiment, the second protruding structure 315 is roughly in the shape of a cuboid.

[0117] See also Fig.16As shown, 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, so as to achieve the avoidance of movement between the first swing arm 304 and the connecting member 303, and 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.

[0118] Combination Fig. 9 and Fig.10 ,as well as Fig.14 and Fig.16 As shown, in one embodiment, the limit plate structure 313 is clamped between the limit clamp arm 317 and the groove bottom 320 of the first slide groove 318, so that the first swing arm 304 moves 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-part 311, the connecting end of the second sub-part 311 is connected to one end of the first sub-part 310, and the other end of the first sub-part 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-part 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-part 311 gradually withdraws from the first slide groove 318. The limit clamp arm 317 can be mainly formed by a flat plate, and the first slide groove 318 is in a straight line form, so that it is easy to realize the straight 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 slot 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 slot 318.

[0119] It should be noted that, in some other possible implementations, for the sliding mode of the first swing arm 304 and the connecting member 303, different types of first slide grooves 318 can be used according to different types of rotating shaft mechanisms 300, that is, the first slide groove 318 can be in a straight line form or in an arcuate form; when the first slide groove 318 is in an arcuate form, 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 of the first slide grooves 318 are straight line slide grooves, and other first slide grooves 318 are curved slide grooves.

[0120] Combination Figure 7 and Figure 8 ,as well as Fig.18 and Fig.19 As shown, in some embodiments, the hinge mechanism 300 further includes a second swing arm 305, which is rotatably connected to the base 301, and the second swing arm 305 is rotatably connected to the connecting member 303. After the second swing arm 305 is rotatably connected to the base 301 and the connecting member 303, 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 connecting member 303 can remain unchanged, so that the first swing arm 304 is guaranteed to slide relative to the connecting member 303. Fig. 20 and Fig.21 As shown, in one embodiment, the second swing arm 305 and the base 301 are rotatably connected by cooperating with the arc surface 321, that is, the rotatable connection is achieved by 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.

[0121] 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.

[0122] Please combine Fig.13 and Fig.17As shown, in some embodiments, the door panel 302 is connected to the connecting member 303 at a low level, and the second swing arm 305 is used to drive the door panel 302 to move. When the rotating shaft mechanism 300 switches between the folded state and the unfolded state, the door panel 302 is driven by the connecting member 303 and the second swing arm 305; in addition, when the rotating shaft mechanism 300 switches between the folded state and the unfolded state, the door panel 302 is driven without the participation of the first swing arm 304, that is, there is no direct movement correlation between the door panel 302 and the first swing arm 304. In this way, after the first limiting structure is designed between the door panel 302 and the first swing arm 304, in the case of falling, the base 301 is first subjected to collision force, and then the force is transmitted to the first swing arm 304, the door panel 302, the connecting member 303 and the housing of the electronic device in sequence, so as to resist the relative sliding between the first swing arm 304 and the connecting block when falling, and reduce the risk of failure of the display screen 200.

[0123] Please combine Fig.13 and Fig.17 As shown, 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 cooperates with the second curved surface structure 323 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.

[0124] Combination Fig.13 , Fig.18 and Fig. 20 As shown, in some embodiments, the second swing arm 305 is connected with the door panel 302, wherein the second swing arm 305 has a first through hole 324, the door panel 302 has a first connecting ear 325, the first connecting ear 325 has an arc-shaped through hole 326, the first connecting ear 325 is inserted into the first through hole 324, the arc-shaped through hole 326 is penetrated with a first pin 327, and the first pin 327 is also penetrated 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 arc-shaped through hole 326. In this way, it is easy to realize the drive between the second swing arm 305 and the door panel 302, and realize that the door panel 302 can rotate relative to the connecting member 303.

[0125] It should be noted that, in some other possible implementations, the second swing arm 305 and the door panel 302 may also be connected by a low pair. Fig. 22As shown, in some other possible embodiments, the pivot mechanism 300 also includes a third swing arm 330, which is rotatably connected to the base 301 and movably connected to the door panel 302; illustratively, the third swing arm 330 is hinged to the base 301, and the third swing arm 330 is slidably connected to the door panel 302; when the third swing arm 330 is used, there may no longer be a driving relationship between the second swing arm 305 and the door panel 302; the driving of the door panel 302 can be achieved by the joint action of the third swing arm 330 and the connecting member 303; and the second swing arm 305 is not responsible for the driving of the door panel 302, that is, the second swing arm 305 is only rotatably connected to the base 301 and the connecting member 303.

[0126] In some implementations, the door panel 302 is fixedly connected to the flexible display screen. The door panel 302 and the flexible display screen may be fixed by bonding to achieve support for the flexible display screen by the door panel 302 when the flexible display screen is unfolded. Fig. 9 and Fig.10 The door panel 302 of the rotating shaft mechanism can be fixedly connected to the flexible display screen.

[0127] It should be noted that Fig.23 and Fig.24 It is a schematic diagram of another deformation structure of the rotating shaft mechanism. Fig.23 and Fig.24 The first abutment surface 306 and the second abutment surface 307 are shown; Fig.23 and Fig.24 As shown, in some other possible implementations, 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 plate 302; the door plate 302 can move relative to the flexible display screen. The length of the door plate 302 can be equal to the width of the flexible display screen in the length direction of the base 301, and the length of the door plate 302 can also be designed according to other situations.

[0128] In the description of the specification of the present application, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0129] 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 it. 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 being rotatably connected to the base, and when the first swing arm rotates relative to the base, the first swing arm slides relative to the connecting member; A second swing arm, the second swing arm is rotatably connected to the base, the second swing arm is rotatably connected to the connecting member, the second swing arm is used to drive the door panel to move, and the door panel is connected to the connecting member at a lower pair; 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 swing arm does not drive the door panel to move, and the first limiting structure can limit the first swing arm from sliding along a set direction relative to the connecting member; 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.

2. The rotating shaft mechanism according to claim 1, 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.

3. The rotating shaft mechanism according to claim 1, 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; The first protruding structure extends into the first recessed groove, so that the first abutting surface can contact the second abutting surface.

4. The rotating shaft mechanism according to claim 3, 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.

5. The rotating shaft mechanism according to claim 3, characterized in that: A second limiting structure is provided between the first swing arm and the connecting member, and the second limiting structure can limit the first swing arm from sliding relative to the connecting member along the set direction.

6. The rotating shaft mechanism according to claim 5, 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.

7. The rotating shaft mechanism according to claim 6, 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; The second protrusion structure extends into the first recessed groove, so that the third abutting surface can contact the second abutting surface.

8. The rotating shaft mechanism according to claim 7, 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.

9. The rotating shaft mechanism according to claim 8, 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.

10. The rotating shaft mechanism according to claim 1, 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.

11. The rotating shaft mechanism according to claim 1, 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.

12. The rotating shaft mechanism according to claim 1, 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.

13. The rotating shaft mechanism according to any one of claims 1 to 12, 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.

14. 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 to 13, 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.

15. The electronic device according to claim 14, 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.

Images