Rotating shaft mechanism and electronic device

Abstract

The present application discloses a rotating shaft mechanism and an electronic device. The rotating shaft mechanism comprises: a base, a swing arm, and a stop portion. The base comprises a shaft cover and a support connected to each other. The swing arm is located on one side of the base and is rotatably connected to the support. The stop portion is located on the shaft cover, extends towards the support, and is opposite to the swing arm. The stop portion is configured to prevent movement of the swing arm when the rotating shaft mechanism is in a folded state and not subjected to external force. In this way, when the electronic device falls, the stop portion is used to prevent the swing arm from moving, so that a rotation angle of the swing arm and the intrusion amount of a middle frame can be reduced, thereby reducing the risk of a display screen impacting the support, avoiding failure of the display screen, and improving the reliability of the electronic device.

Description

A rotating shaft mechanism and electronic device

[0001] The present application claims priority to the Chinese patent application No. 202411339629.9, filed on September 24, 2024, and entitled "A rotating shaft mechanism and electronic device", the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of terminal devices, and in particular to a rotating shaft mechanism and electronic device. BACKGROUND

[0003] With the development of terminal technology, the display screen size of electronic devices such as mobile phones is getting larger and larger. In order to increase the display screen size while taking into account the portability needs of users, foldable screen devices have gradually entered the use scenarios of users.

[0004] The foldable screen device includes a display screen, a first body, a second body, and a rotating shaft mechanism. The rotating shaft mechanism is connected to the first body and the second body on both sides, and the display screen covers the first body, the second body, and the rotating shaft mechanism. The rotating shaft mechanism includes a base and two swing arms located on both sides of the base. The swing arms rotate around the base to realize the folding or unfolding of the rotating shaft mechanism, and thus the folding or unfolding of the first body and the second body.

[0005] However, when the electronic device in the folded state falls, the swing arm will move relative to the base, causing the first body and the second body to move, and thus the display screen will impact the base downward, which is likely to cause the display screen to fail. SUMMARY

[0006] The present application provides a rotating shaft mechanism and electronic device to solve the problem that the rotating shaft mechanism is prone to causing the display screen to fail when falling.

[0007] In a first aspect, the present application provides a rotating shaft mechanism, comprising: a base, a swing arm, and a stop part. The base includes a shaft cover and a bracket connected together; the swing arm is located on one side of the base and is rotationally connected to the bracket; the stop part is located on the shaft cover and extends towards the bracket, and the stop part is opposite to the swing arm; the stop part is configured to prevent the swing arm from moving when the rotating shaft mechanism is in a folded state and is subjected to an acting force.

[0008] The rotating shaft mechanism provided by the embodiments of the present application can prevent the swing arm from moving by using the stop part when the electronic device falls, which can reduce the rotation angle of the swing arm, reduce the intrusion amount of the middle frame, and thus reduce the risk of the display screen impacting the bracket, avoid the failure of the display screen, and improve the reliability of the electronic device.

[0009] In some embodiments, the support includes a first sliding part opposite to the stop part; the swing arm includes a second sliding part configured to slide with the first sliding part when the rotating shaft mechanism rotates, so as to realize rotation of the swing arm around the support. In this way, the swing arm can rotate relative to the support to switch between the unfolded state and the folded state.

[0010] In some embodiments, the first sliding part is a sliding groove, and the second sliding part is a sliding block; or, the first sliding part is a sliding block, and the second sliding part is a sliding groove; the sliding block is embedded in the sliding groove, and the sliding block is configured to slide along the sliding groove when the rotating shaft mechanism rotates. In this way, the first sliding part and the second sliding part can slide in cooperation.

[0011] In some embodiments, when the rotating shaft mechanism is not subjected to the force, the second sliding part has a first gap with the stop part; when the rotating shaft mechanism is subjected to the force, the second sliding part and the stop part generate relative movement to abut, so as to prevent the swing arm from moving. In this way, when the swing arm rotates around the support, the second sliding part and the stop part can be prevented from interfering with each other, so as to hinder rotation of the swing arm and affect folding or unfolding of the rotating shaft mechanism.

[0012] In some embodiments, the second sliding part includes a sliding part body and a sliding part top end; when the rotating shaft mechanism is in the unfolded state, the sliding part body is located above the stop part with a first gap; when the rotating shaft mechanism is in the folded state, the sliding part top end is located above the stop part with the first gap. In this way, in the unfolded state, the sliding part body and the corresponding stop part have a gap and do not contact each other. In the folded state, the sliding part top end and the corresponding stop part have a gap and do not contact each other. Therefore, when the swing arm rotates around the support, the second sliding part and the stop part can be prevented from interfering with each other, so as to hinder rotation of the swing arm and affect folding or unfolding of the rotating shaft mechanism.

[0013] In some embodiments, when the rotating shaft mechanism is in the folded state and subjected to the force, the stop part is configured to abut with the sliding part top end of the second sliding part, so as to prevent the swing arm from continuously sliding relative to the first sliding part and / or prevent the swing arm from moving in the direction of the shaft cover. In this way, when the electronic device falls, the swing arm can be supported or pressed by the stop part, so as to prevent the swing arm from continuously rotating along the sliding groove and / or prevent the swing arm from moving in the direction of the shaft cover.

[0014] In some implementations, when the rotating shaft mechanism is in the folded state and is subjected to the force, the stop portion is configured to be abutted against the sliding portion body from the sliding portion top end of the second sliding portion to prevent the swing arm from continuously sliding relative to the first sliding portion and / or to prevent the swing arm from moving towards the shaft cover. In this way, when the electronic device falls, the swing arm is pressed by the stop portion, and the frictional force generated by the sliding of the stop portion and the second sliding portion of the swing arm can buffer the continuous rotation of the swing arm along the sliding groove and / or prevent the swing arm from moving towards the shaft cover.

[0015] In some implementations, when the rotating shaft mechanism is in the folded state and is subjected to the force, the stop portion is configured to be deformed in the first direction when abutting against the second sliding portion; wherein the first direction is perpendicular to the axis direction. In this way, when the electronic device falls, the stop portion is impacted by the excessive rotation of the swing arm, and the stop portion is deformed to release the impact force, so as to prevent the swing arm from continuously rotating along the sliding groove and / or to prevent the swing arm from moving towards the shaft cover.

[0016] In some implementations, when the force acting on the rotating shaft mechanism disappears, the second sliding portion and the stop portion move away from each other, and the interval between the sliding portion top end of the second sliding portion and the stop portion increases to the second gap. In this way, the stop portion and the swing arm can have a gap to ensure the switching of the rotating shaft mechanism during folding and unfolding in normal use, and avoid affecting the use of the electronic device.

[0017] In some implementations, the support further includes a through hole located on the side of the first sliding portion close to the shaft cover; and the stop portion is embedded in the through hole. In this way, the stop portion can be conveniently arranged between the support and the shaft cover to prevent the swing arm from moving when falling.

[0018] In some implementations, when the first sliding portion is a sliding groove, the through hole is in communication with the sliding groove; and when the first sliding portion is a sliding block, the side of the support close to the shaft cover includes a boss extending below the second sliding portion; and the through hole penetrates the boss to be opposite to the second sliding portion. In this way, the position of the through hole can be designed according to the different structures of the first sliding portion to conveniently accommodate the stop portion.

[0019] In some implementations, in the first direction, the width of the through hole is greater than or equal to the width of the stop portion; wherein the first direction is perpendicular to the axis direction. In this way, the stop portion can be embedded in the through hole to reduce the height of the shaft cover and the support along the z-axis direction.

[0020] In some implementations, the outer surface of the stop portion abuts against the outer surface of the through hole. In this way, the positioning of the shaft cover and the support along the x-axis direction can be achieved, and the mutual deflection of the shaft cover and the support can be prevented, thereby reducing the risk of scratching the shaft cover by the middle frames of the first body and the second body during the bending process.

[0021] In some implementations, the stop portion includes a protruding portion protruding towards the first sliding portion; the protruding portion is configured to abut against the second sliding portion to prevent the swing arm from moving when the rotating shaft mechanism is subjected to the force. In this way, the movement of the swing arm is prevented by the protruding portion, and the effect of the stop portion preventing the swing arm from moving is improved.

[0022] In some implementations, the protruding portion includes a first surface and a second surface; the first surface and the second surface are connected and both face the first sliding portion; the first surface and the second surface form a first included angle facing the shaft cover. In this way, the continued movement of the swing arm when falling is prevented by the first included angle abutting against the second sliding portion of the swing arm.

[0023] In some implementations, when the first sliding portion is a sliding groove, the sliding groove is a circular arc groove, and the second surface is a curved surface; the curvature of the curved surface is the same as the curvature of the lower sliding groove surface of the circular arc groove, and the centers are the same. In this way, the discontinuity of the sliding groove due to the through hole is compensated by the second surface, so that the sliding portion of the swing arm can slide along the path defined by the second surface and the lower sliding groove surface of the sliding groove.

[0024] In some implementations, the first surface has a second included angle facing the second surface with respect to the first direction. In this way, the protruding portion protruding towards the sliding groove is formed by the inclined first surface and the second surface, and the movement of the swing arm is prevented by the protruding portion when falling.

[0025] In a second aspect, the present application provides an electronic device, which includes a display screen, a first body, a second body, and a rotating shaft mechanism as provided in the first aspect; the first body and the second body are located on opposite sides of the axis direction of the rotating shaft mechanism, and the first body and the second body are respectively connected with the rotating shaft mechanism; the display screen covers the first body, the second body and the rotating shaft mechanism, and the first body and the second body rotate with the bending or unfolding of the rotating shaft mechanism to drive the display screen to bend or unfold.

[0026] It can be understood that the electronic device provided in the second aspect above is applied to the rotating shaft mechanism provided above, and thus the beneficial effects that can be achieved by the electronic device can refer to the beneficial effects of the rotating shaft mechanism provided above, which will not be described herein again. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the present application, the drawings needed in the embodiments will be briefly introduced below, and obviously, other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0028] FIG. 1 is a structural schematic diagram of an electronic device provided by an embodiment of the present application;

[0029] FIG. 2 is a structural schematic diagram of a hinge assembly;

[0030] FIG. 3 is a cross-sectional structural schematic diagram of a hinge assembly in a folded state;

[0031] FIG. 4A is a scene diagram of an electronic device in a folded state;

[0032] FIG. 4B is a scene diagram of an electronic device in a folded state when falling;

[0033] FIG. 5 is an exploded structural schematic diagram of a hinge mechanism provided by an embodiment of the present application;

[0034] FIG. 6 is a structural schematic diagram of a hinge mechanism provided by an embodiment of the present application;

[0035] FIG. 7 is a first cross-sectional structural schematic diagram of a hinge mechanism provided by an embodiment of the present application;

[0036] FIG. 8 is a first structural schematic diagram of a swing arm and a base provided by an embodiment of the present application;

[0037] FIG. 9 is a second structural schematic diagram of a swing arm and a base provided by an embodiment of the present application;

[0038] FIG. 10 is a partial structural schematic diagram of a support provided by an embodiment of the present application;

[0039] FIG. 11 is a partial structural schematic diagram of a swing arm provided by an embodiment of the present application;

[0040] FIG. 12 is a structural schematic diagram of a first sliding part and a second sliding part provided by an embodiment of the present application;

[0041] FIG. 13 is a partial structural schematic diagram of a shaft cover provided by an embodiment of the present application;

[0042] FIG. 14 is a partial enlarged structural schematic diagram of region A in FIG. 7;

[0043] FIG. 15 is a second cross-sectional structural schematic diagram of a hinge mechanism provided by an embodiment of the present application;

[0044] FIG. 16 is a partial enlarged structural schematic diagram of region B in FIG. 15;

[0045] FIG. 17 is a structural schematic diagram of a hinge mechanism provided by an embodiment of the present application when falling;

[0046] FIG. 18 is a first structural schematic diagram of a stop part and a swing arm abutting each other provided by an embodiment of the present application;

[0047] FIG. 19 is a second structural schematic diagram of a stop part and a swing arm abutting each other provided by an embodiment of the present application;

[0048] Fig. 20 is a third structure schematic diagram of the stop portion and the swing arm abutting according to an embodiment of the present application;

[0049] Fig. 21 is a partial structure schematic diagram of the shaft cover and the bracket according to an embodiment of the present application.

[0050] The drawings illustrate:

[0051] Wherein, 10-first fuselage, 20-second fuselage, 30-display screen, 40-rotary shaft assembly, 41-rotary shaft base, 411-base cover, 412-fixed bracket, 413-supporting plate, 414-guiding sliding groove, 42-left door plate, 43-right door plate, 44-left connecting block, 45-right connecting block, 46-main swing arm, 47-synchronous swing arm, 48-door plate swing arm, 100-base, 101-shaft cover, 102-bracket, 1021-tub, 1021a-upper surface of the tub, 103-first sliding portion, 1031-lower sliding groove surface, 103-1-first sliding groove, 103-2-second sliding groove, 104-through hole, 104a-outer surface of the through hole, 104a-1-outer surface of the first through hole, 104a-2-outer surface of the second through hole, 104-1-first through hole, 104-2-second through hole, 200-swing arm, 200-1-first swing arm, 200-2-second swing arm, 201-second sliding portion, 2011-sliding portion body, 2012-sliding portion top end, 201-1-first sliding block, 201-2-second sliding block, 202-rotating portion, 202-1-first rotating portion, 202-2-second rotating portion, 300-stop portion, 300-1-first stop portion, 300-2-second stop portion, 300a-outer surface of the stop portion, 300a-1-outer surface of the first stop portion, 300a-2-outer surface of the second stop portion, 301-protruding portion, 3011-first surface, 3012-second surface, 401-first door plate, 402-second door plate, 403-first connecting block, 404-second connecting block, 405-sliding groove swing arm, 406-secondary swing arm, 407-spring assembly, 408-rotary shaft. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, other embodiments obtained by a person of ordinary skill in the art without creative work are within the protection scope of the present application.

[0053] In the description of the present application, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0054] In addition, in the present application, the orientation terms such as "up", "down", "left", "right", "in", "out", etc. are defined with respect to the orientation of the components shown in the drawings, and it should be understood that these directional terms are relative concepts, which are used for relative description and clarification, and can be changed accordingly according to the change of the orientation of the components placed in the drawings.

[0055] The electronic device described in the embodiments of the present application includes but is not limited to a mobile phone, a folding screen mobile phone, a notebook computer, a tablet computer, a laptop computer, a personal digital assistant or a wearable device, etc. The electronic device is described below as a folding screen mobile phone.

[0056] FIG. 1 is a structural schematic diagram of an electronic device provided by an embodiment of the present application.

[0057] As shown in FIG. 1, the electronic device can include a first body 10, a second body 20, a display screen 30 and a rotating shaft assembly 40, wherein the dashed line in FIG. 1 schematically shows the area of the rotating shaft assembly 40. The first body 10 and the second body 20 are respectively arranged on both sides of the axis direction of the rotating shaft assembly 40, the first body 10 and the second body 20 are respectively connected with the rotating shaft assembly 40, and the first body 10 and the second body 20 can be rotated through the rotating shaft assembly 40, so that the included angle between the first body 10 and the second body 20 is reduced until the electronic device presents a folded state (not shown in the figure); or the included angle between the first body 10 and the second body 20 is increased until the electronic device presents an unfolded state (such as the state shown in FIG. 1). The electronic device can also be unfolded or folded to an intermediate state, which can be any state between the unfolded state and the folded state.

[0058] The display screen 30 covers the first body 10, the second body 20 and the rotating shaft assembly 40, and is respectively connected with the first body 10 and the second body 20. The rotation of the first body 10 and the second body 20 can drive the display screen 30 to bend or unfold. For example, the display screen 30 can adopt a bendable flexible screen, and the display screen 30 has a bending area, so that the display screen 30 can bend in the bending area with the rotation of the rotating shaft assembly 40.

[0059] The display screen 30 moves with the electronic device, and the state of the electronic device is the same as the state of the hinge assembly 40. When the electronic device is in the unfolded state, the hinge assembly 40 is also in the unfolded state. In the unfolded state, the first body 10 and the second body 20 are distributed in parallel on the two sides of the hinge assembly 40, and the display screen 30 is laid flat on the hinge assembly 40 in the unfolded state. The display screen 30 displays in full screen, so that the electronic device has a larger display area, thereby improving the viewing experience and operation experience of the user. When the electronic device is in the folded state, the hinge assembly 40 is also in the folded state (as shown in FIG. 2). In the folded state, the first body 10 and the second body 20 are distributed opposite to each other on the two sides of the hinge assembly 40, and the hinge assembly 40 presses the display screen 30 into a water drop shape. When the electronic device is in the folded state, the planar size of the electronic device is small, which is convenient for the user to carry and store. When the electronic device is in the intermediate state, the hinge assembly 40 is also in the intermediate state.

[0060] According to the different rotation directions of the first body 10 and the second body 20, the flexible screen may be hidden inside the body or wrapped outside the body when the electronic device is in the folded state. Among them, when the first body 10 and the second body 20 are folded towards the front of the flexible screen, the flexible screen is hidden inside the body when the electronic device is in the folded state. Such an electronic device can be called an inner folding screen electronic device, for example, an inner folding screen mobile phone. When the first body 10 and the second body 20 are folded towards the back of the flexible screen, the flexible screen is wrapped outside the body when the electronic device is in the folded state. Such an electronic device can be called an outer folding screen electronic device, for example, an outer folding screen mobile phone.

[0061] It should be noted that the first body 10 and the second body 20 can be provided with circuit boards, camera modules, speaker modules, batteries and other electronic devices, which are not listed here.

[0062] In order to facilitate the description of the positions of various components in the electronic device, the embodiments of the present application exemplarily establish a three-dimensional coordinate system based on the electronic device, wherein the x-axis direction is the width direction of the electronic device, the y-axis direction is the length direction of the electronic device, and the z-axis direction is the thickness direction of the electronic device.

[0063] FIG. 2 is a structural schematic diagram of a hinge assembly.

[0064] As shown in FIG. 2, the hinge assembly 40 includes a hinge base 41, a left door plate 42, a right door plate 43, a left connecting block 44, a right connecting block 45, two groups of main swing arms 46, two groups of synchronous swing arms 47, and two groups of door plate swing arms 48. It should be noted that one group of main swing arms 46 includes two main swing arms 46, one group of synchronous swing arms 47 includes two synchronous swing arms 47, and one group of door plate swing arms 48 includes two door plate swing arms 48.

[0065] The length direction of the rotating shaft base 41 is the axis direction Z0 of the rotating shaft assembly 40, and the axis direction Z0 is parallel to the y-axis direction. The two groups of main swing arms 46, the two groups of synchronous swing arms 47, and the two groups of door plate swing arms 48 are arranged at intervals along the axis direction Z0, and the two main swing arms 46 in the same group are located on opposite sides of the rotating shaft base 41, the two synchronous swing arms 47 in the same group are located on opposite sides of the rotating shaft base 41, and the two door plate swing arms 48 in the same group are located on opposite sides of the rotating shaft base 41.

[0066] The left door plate 42 and the right door plate 43 are located on opposite sides of the rotating shaft base 41 along the axis direction Z0, the left connecting block 44 and the right connecting block 45 are located on opposite sides of the rotating shaft base 41 along the axis direction Z0, the left door plate 42 is connected with the left connecting block 44, and the right door plate 43 is connected with the right connecting block 45.

[0067] The left connecting block 44 is movably connected with one side of the rotating shaft base 41 through the two main swing arms 46, the two synchronous swing arms 47, and the two door plate swing arms 48 located on the same side, and the right connecting block 45 is movably connected with the other side of the rotating shaft base 41 through the two main swing arms 46, the two synchronous swing arms 47, and the two door plate swing arms 48 located on the same side. The movable connection can be a rotating connection or a sliding connection. It should be noted that, in order to achieve reliability, each group of swing arms can also have a corresponding connection relationship with the left door plate 42 and the right door plate 43, which is not described here.

[0068] FIG. 3 is a cross-sectional structural schematic view of a rotating shaft assembly in a folded state.

[0069] As shown in FIG. 3, the rotating shaft base 41 includes a base cover 411, a fixed support 412, and a support plate 413, and the support plate 413, the fixed support 412, and the base cover 411 are stacked and connected along the z-axis direction. The support plate 413 is used to cover the parts in the rotating shaft base 41 and can also support the display screen 30; the fixed support 412 is used to achieve the movable connection with each group of swing arms, and the base cover 411 supports the fixed support 412 and also has a decorative effect.

[0070] The movable connection mode of the main swing arm 46, the synchronous swing arm 47, and the door plate swing arm 48 with the fixed support 412 includes a virtual rotating shaft or a rotating shaft connection mode. The rotating shaft connection mode is a connection mode realized by using a physical rotating shaft, and the virtual rotating shaft connection mode is a connection mode realized by the cooperation of a circular arc sliding groove and a circular arc sliding block.

[0071] Taking the virtual rotating shaft connection of the main swing arm 46 with the fixed support 412 of the rotating shaft base 41 as an example, the fixed support 412 is provided with a guide sliding groove 414, the main swing arm 46 is embedded in the guide sliding groove 414 and can slide in the guide sliding groove 414, and the guide sliding groove 414 has a guide effect on the rotation of the main swing arm 46.

[0072] FIG. 4A is a scene diagram of an electronic device in a folded state.

[0073] As shown in FIGS. 1, 2 and 4A, in the structure in which the hinge assembly 40 is applied to the electronic device, the left connecting block 44 is connected with the first body 10, and the right connecting block 45 is connected with the second body 20. Specifically, the left connecting block 44 is connected with the middle frame of the first body 10, and the right connecting block 45 is connected with the middle frame of the second body 20. The display screen 30 is covered on the left door plate 42 and the right door plate 43 (hereinafter collectively referred to as door plate), and the display screen 30 is supported by the door plate.

[0074] When the hinge assembly 40 is folded or unfolded, the first body 10 and the second body 20 are folded or unfolded by the left connecting block 44 and the right connecting block 45, and at the same time, the door plate moves with the folding and unfolding of the hinge assembly 40, and pushes the display screen 30 to fold or unfold, so as to support the display screen 30 in the unfolded state, and press the display screen 30 to be in the water drop shape in the folded state. In this way, when the hinge assembly 40 is folded or unfolded, the electronic device is folded or unfolded.

[0075] When the electronic device is in the folded state, the bottom end of the middle frame and the appearance surface of the base cover 411 have a first height H1, for example, the bottom end of the second body 20 and the appearance surface of the base cover 411 have the first height H1.

[0076] FIG. 4B is a scene diagram of an electronic device in a folded state when falling.

[0077] As shown in FIG. 4B, when the electronic device in the folded state falls, the base cover 411 first impacts the ground, the base cover 411 is deformed under force, the base cover 411 is outwardly expanded on both sides and the central area is lifted up. At the same time, under the impact of falling, the main swing arm 46 will rotate downward and continue to slide along the guide sliding groove 414. The downward rotating main swing arm 46 drives the first body 10 and the second body 20 to move downward through the left connecting block 44 and the right connecting block 45, and the first body 10 and the second body 20 rotate towards the opposite directions, resulting in that the middle frames of the first body 10 and the second body 20 increase the intrusion amount, and the height between the middle frames and the base cover 411 is reduced to a second height H2.

[0078] The first body 10 and the second body 20 move downward under the impact force, and are separated, and in turn drive the display screen 30 to impact the support plate 413, so that the display screen 30 is easily damaged and fails.

[0079] In order to avoid the display screen from failing when the electronic device falls, the hinge mechanism provided in the embodiments of the present application can reduce the rotation angle of the main swing arm, reduce the intrusion amount of the middle frame, and in turn reduce the risk of the display screen impacting the support plate 413, so as to avoid the display screen from failing and improve the reliability of the electronic device.

[0080] FIG. 5 is an exploded structural schematic diagram of the rotating shaft mechanism according to an embodiment of the present application; and FIG. 6 is a structural schematic diagram of the rotating shaft mechanism according to an embodiment of the present application.

[0081] As shown in FIGS. 5 and 6, in some embodiments, the rotating shaft mechanism can include a base 100, a swing arm 200, a first door plate 401, a second door plate 402, a first connecting block 403, a second connecting block 404, a sliding groove swing arm 405, a sub-swing arm 406, and a spring assembly 407.

[0082] The base 100 can be a rotating shaft base in the rotating shaft mechanism, and the length direction of the base 100 is the axis direction Z0 of the base 100, which is also the axis direction of the rotating shaft mechanism. The width direction of the base 100 is the x-axis direction, the axis direction of the base 100 is the y-axis direction, and the thickness direction of the base 100 is the z-axis direction.

[0083] The first door plate 401 and the second door plate 402 are located on opposite sides of the base 100 along the axis direction Z0, and the first connecting block 403 and the second connecting block 404 are located on opposite sides of the base 100 along the axis direction Z0. The first door plate 401 is connected to the first connecting block 403, and the second door plate 402 is connected to the second connecting block 404.

[0084] Two swing arms 200 are located on opposite sides of the base 100, two sliding groove swing arms 405 are located on opposite sides of the base 100, and two sub-swing arms 406 are located on opposite sides of the base 100. The first connecting block 403 is movably connected to one side of the base 100 through the swing arm 200, the sliding groove swing arm 405, and the sub-swing arm 406 located on the same side, and the second connecting block 404 is movably connected to the other side of the base 100 through the swing arm 200, the sliding groove swing arm 405, and the sub-swing arm 406 located on the same side.

[0085] The first connecting block 403 is connected to the first body 10, and the second connecting block 404 is connected to the second body 20. Specifically, the first connecting block 403 is connected to the middle frame of the first body 10, and the second connecting block 404 is connected to the middle frame of the second body 20. The display screen 30 is covered on the first door plate 401 and the second door plate 402 (hereinafter collectively referred to as door plates), and the door plates are used to support the display screen 30.

[0086] When the rotating shaft mechanism is folded or unfolded, the rotation of each group of swing arms around the base 100 drives the relative movement of the first connecting block 403 and the second connecting block 404, and then drives the folding or unfolding of the first body 10 and the second body 20 through the first connecting block 403 and the second connecting block 404. At the same time, the folding or unfolding of the display screen 30 is driven by the relative movement of the first door plate 401 and the second door plate 402, so as to realize the folding or unfolding of the electronic device.

[0087] The spring assembly 407 is located between the first connecting block 403 and the second connecting block 404 and is connected with the support 102. The spring assembly 407 is configured to press the swing arm group in the y-axis direction when the swing arm group rotates relative to the support 102, so as to avoid the swing arms from deviating from the rotation around the support 102.

[0088] It should be noted that the swing arm 200 is the same as the main swing arm 46 of the rotating shaft assembly shown in FIG. 2, the sliding groove swing arm 405 is the same as the synchronous swing arm 47 of the rotating shaft assembly shown in FIG. 2, the auxiliary swing arm 406 is the same as the door plate swing arm 48 of the rotating shaft assembly shown in FIG. 2, the first door plate 401 and the second door plate 402 are the same as the left door plate 42 and the right door plate 43 of the rotating shaft assembly shown in FIG. 2, and the first connecting block 403 and the second connecting block 404 are the same as the left connecting block 44 and the right connecting block 45 of the rotating shaft assembly shown in FIG. 2. The structural characteristics or functions of each component of the rotating shaft mechanism provided in the embodiments of the present application can be referred to the corresponding contents of the rotating shaft assembly shown in FIG. 2, and details are not described herein.

[0089] FIG. 7 is a first cross-sectional structural schematic view of the rotating shaft mechanism provided in the embodiments of the present application. In FIG. 7, the cross-sectional structure of FIG. 6 in the x-axis direction is shown, and the structure of the rotating shaft mechanism in the folded state is shown.

[0090] As shown in FIG. 7, in some embodiments, the base 100 can include the shaft cover 101 and the support 102 connected with each other. The support 102 is connected with the shaft cover 101 in the z-axis direction. The support 102 is used to realize the movable connection with each group of swing arms, and the shaft cover 101 supports the support 102 and has a decorative effect. It should be noted that the support 102 can be composed of a fixed support and a support plate, and the structure of the support 102 can be determined according to actual application, which is not limited herein.

[0091] Taking the swing arm 200 connected with the support 102 in the sliding manner by the virtual rotating shaft as an example, the rotating shaft mechanism can adopt two groups of swing arms 200, and the number of each group of swing arms 200 is two. The setting positions of the two groups of swing arms 200 can be referred to the contents shown in FIG. 2, and details are not described herein.

[0092] For the same group of swing arms 200, the two swing arms 200 are located on opposite sides of the base 100 in the axial direction Z0 of the base 100 and are rotatably connected with the base 100. Specifically, the two swing arms 200 are rotatably connected with the two sides of the support 102 in the axial direction.

[0093] FIG. 8 is a first structural schematic view of the connection between the swing arm and the base provided in the embodiments of the present application, and FIG. 9 is a second structural schematic view of the connection between the swing arm and the base provided in the embodiments of the present application. In FIGS. 8 and 9, the local structures of FIG. 6 are shown, FIG. 8 shows the structure in the unfolded state, and FIG. 9 shows the structure in the folded state.

[0094] As shown in FIG. 7, FIG. 8 and FIG. 9, two swing arms 200 include a first swing arm 200-1 and a second swing arm 200-2. The first swing arm 200-1 and the second swing arm 200-2 are located on opposite sides of the base 100 along the axis direction Z0 of the base 100, and one end of the first swing arm 200-1 and one end of the second swing arm 200-2 are rotatably connected to the support 102 of the base 100. In the rotating shaft mechanism, the other end of the first swing arm 200-1 is connected to the first connecting block 403, and the other end of the second swing arm 200-2 is connected to the second connecting block 404.

[0095] Referring again to FIG. 7, the rotating shaft mechanism can further include a stop portion 300 located on the shaft cover 101 and extending in the direction of the support 102 along the z-axis direction. The height direction of the stop portion 300 is parallel to the thickness direction (z-axis direction) of the base 100, and the stop portion 300 is perpendicular to the base 100.

[0096] The stop portion 300 and the shaft cover 101 can be integrally formed to form an integrated structure to improve reliability. The stop portion 300 and the shaft cover 101 can also be combined together as separate individuals through subsequent processes, for example, the stop portion 300 can be fixed on the shaft cover 101 by inlaying, gluing or welding.

[0097] The stop portion 300 is opposite to the swing arm 200, and the number of stop portions 300 is the same as the number of swing arms 200. The stop portion 300 includes a first stop portion 300-1 and a second stop portion 300-2, which are in a mirror image state along the axis direction. The first stop portion 300-1 is opposite to the first swing arm 200-1, and the second stop portion 300-2 is opposite to the second swing arm 200-2.

[0098] The stop portion 300 is configured to prevent the swing arm 200 from moving when the rotating shaft mechanism is in a folded state and is subjected to an acting force. For example, when the electronic device falls, the first stop portion 300-1 can be used to prevent the first swing arm 200-1 from moving, and the second stop portion 300-2 can be used to prevent the second swing arm 200-2 from moving.

[0099] The rotating shaft mechanism provided by the embodiments of the present application can prevent the swing arm 200 from moving by using the stop portion 300 when the electronic device falls, which can reduce the rotation angle of the swing arm 200, reduce the amount of intrusion of the middle frame, and further reduce the risk of the display screen 30 impacting the base 100, thereby avoiding the failure of the display screen 30 and improving the reliability of the electronic device.

[0100] FIG. 10 is a partial structure schematic diagram of a support provided by an embodiment of the present application.

[0101] In combination with FIGS. 7 and 10, in some embodiments, the support 102 can include a first sliding portion 103 and a through hole 104.

[0102] The first sliding portion 103 is opposite to the stop portion 300.

[0103] One end of the swing arm 200 is configured to slide with the first sliding portion 103, so as to facilitate the rotation of the swing arm 200 around the support 102 and restrict the rotation angle of the swing arm 200. For example, the first sliding portion 103 and the one end of the swing arm 200 are both circular arc grooves, so as to facilitate the rotation of the swing arm 200 and realize the switching of the folding or unfolding of the rotation shaft mechanism.

[0104] The through hole 104 is located on the side of the first sliding portion 103 close to the shaft cover 101, and the through hole 104 is configured to accommodate the stop portion 300.

[0105] In the first direction, the width of the through hole 104 is greater than or equal to the width of the stop portion 300; wherein the first direction is perpendicular to the axis direction, and the first direction is the x-axis direction. In this way, the stop portion 300 can be embedded in the through hole 104, so as to reduce the height of the shaft cover 101 and the support 102 along the z-axis direction.

[0106] FIG. 11 is a schematic view of a partial structure of a swing arm according to an embodiment of the present application.

[0107] In combination with FIGS. 7 and 11, in some embodiments, the swing arm 200 includes a second sliding portion 201 and a rotating portion 202. The second sliding portion 201 is configured to slide with the first sliding portion 103 when the rotation shaft mechanism rotates, so as to realize the rotation of the swing arm 200 around the support 102. The rotating portion 202 extends out of the support 102 and is connected to the connecting block through the rotation shaft 408.

[0108] The second sliding portion 201 is arranged at a corresponding position of the first sliding portion 103 of the swing arm 200, and the swing arm 200 is connected to the first sliding portion 103 through the second sliding portion 201. In this way, the swing arm 200 can rotate relative to the support 102, so as to switch between the unfolded state and the folded state.

[0109] In each swing arm 200, the number of the second sliding portions 201 can be two, and the two second sliding portions 201 are located on the same side of the support 102. The swing arm 200 rotates around the support 102 through the two second sliding portions 201, so as to ensure the reliability of the rotation.

[0110] It should be noted that the first swing arm 200-1 and the second swing arm 200-2 have the same structure, and both can be according to the structure shown in FIG. 11, which will not be described here.

[0111] In some embodiments, the first sliding part 103 of the support 102 and the second sliding part 201 of the swing arm 200 are connected in a virtual pivot connection mode. In this way, the first sliding part 103 can be a sliding groove, and the second sliding part 201 can be a sliding block; or the first sliding part 103 can be a sliding block, and the second sliding part 201 can be a sliding groove. The sliding block is embedded in the sliding groove, and the sliding block is configured to slide along the sliding groove when the pivot mechanism rotates.

[0112] FIG. 12 is a structural schematic diagram of the first sliding part and the second sliding part according to an embodiment of the present application. In FIG. 12, a cross-sectional partial schematic structure of the support 102 and the swing arm 200 along the y-axis is shown.

[0113] In combination with FIG. 7 and (a) of FIG. 12, when the first sliding part 103 is a sliding groove, and the second sliding part 201 is a sliding block, the second sliding part 201 of the swing arm 200 is embedded in the sliding groove, and the sliding groove plays a guiding role to facilitate the rotation of the swing arm 200 around the support 102 and constrain the rotation angle of the swing arm 200. For example, the sliding groove is a circular arc groove to facilitate the rotation of the swing arm 200 and realize the switching of the folding or unfolding of the pivot mechanism.

[0114] The through hole 104 is located on the side of the first sliding part 103 (the sliding groove) close to the shaft cover 101 and communicates with the sliding groove. That is, the through hole 104 communicates the sliding groove and the surface of the support 102 on the side facing the shaft cover 101.

[0115] In combination with FIG. 7 and (b) of FIG. 12, when the first sliding part 103 is a sliding block, and the second sliding part 201 is a sliding groove, the side of the support 102 close to the shaft cover 101 includes a boss 1021, and the boss 1021 has a spacing along the z-axis with the first sliding part 103 (the sliding block). The lower side wall (not shown in the figure) of the second sliding part 201 (the sliding groove) is located in the spacing, and the boss 1021 extends below the second sliding part 201. The through hole 104 penetrates the boss 1021 to be opposite to the second sliding part 201.

[0116] It should be noted that the support 102 and the swing arm 200 provided in the embodiments of the present application can realize the virtual pivot connection mode in any of the above-mentioned embodiments. The remaining figures of the present application all show the structure in which the first sliding part 103 is a sliding groove, and the second sliding part 201 is a sliding block. In the following, the first sliding part 103 is taken as a sliding groove, and the second sliding part 201 is taken as a sliding block as an example for description.

[0117] In the structure of one swing arm 200, the number of the first sliding parts 103 of the bracket 102 is the same as the number of the second sliding parts 201 of the swing arm 200, in combination with FIG. 7, FIG. 10 and FIG. 11. For example, the first swing arm 200-1 includes two first sliding blocks 201-1, the second swing arm 200-2 includes two second sliding blocks 201-2, and one swing arm 200 includes four sliding blocks. Correspondingly, the number of the first sliding parts 103 is four, including two first sliding grooves 103-1 and two second sliding grooves 103-2. The two first sliding grooves 103-1 are arranged on the same side of the bracket 102 along the direction of the rotation axis, and the two second sliding grooves 103-2 are arranged on the other side of the bracket 102 along the direction of the rotation axis. The first sliding grooves 103-1 and the second sliding grooves 103-2 are respectively located at the two ends of the bracket 102 along the x-axis direction, and are symmetrical with respect to the axis.

[0118] For example, the first swing arm 200-1 includes the first rotating part 202-1 and the two first sliding blocks 201-1, and the second swing arm 200-2 includes the second rotating part 202-2 and the two second sliding blocks 201-2.

[0119] The two first sliding blocks 201-1 are respectively embedded in the two first sliding grooves 103-1 and slide along the corresponding first sliding grooves 103-1, and the first sliding grooves 103-1 provide a guide for the rotation of the first swing arm 200-1; the first rotating part 202-1 is connected with the first connecting block 403 to realize the rotation of the first swing arm 200-1 around the bracket 102 and drive the movement of the first connecting block 403. The two second sliding blocks 201-2 are respectively embedded in the two second sliding grooves 103-2 and slide along the corresponding second sliding grooves 103-2, and the second sliding grooves 103-2 provide a guide for the rotation of the second swing arm 200-2; the second rotating part 202-2 is connected with the second connecting block 404 to realize the rotation of the second swing arm 200-2 around the bracket 102 and drive the movement of the second connecting block 404.

[0120] FIG. 13 is a schematic diagram of a partial structure of a shaft cover according to an embodiment of the present application.

[0121] As shown in FIG. 13, in some embodiments, the number of the stop parts 300 is the same as the number of the sliding blocks of the second sliding parts 201 in the swing arm 200, and the same as the number of the sliding grooves.

[0122] For example, the number of the stop parts 300 is four, including two first stop parts 300-1 and two second stop parts 300-2, the two first stop parts 300-1 are located on the same side of the shaft cover 101 along the direction of the rotation axis, and the two second stop parts 300-2 are located on the other side of the shaft cover 101 along the direction of the rotation axis. The first stop parts 300-1 are opposite to the first sliding grooves 103-1, and the second stop parts 300-2 are opposite to the second sliding grooves 103-2.

[0123] In combination with FIG. 7, the number of through holes 104 is the same as the number of stop portions 300, and for example, the number of through holes 104 is four, including two first through holes 104-1 and two second through holes 104-2. The first through holes 104-1 correspond one-to-one to the first sliding grooves 103-1 and are in communication, and the first stop portions 300-1 are embedded one-to-one in the first through holes 104-1, so that the first stop portions 300-1 are opposite the first sliding blocks 201-1 of the first swing arms 200-1; the second through holes 104-2 correspond one-to-one to the second sliding grooves 103-2 and are in communication, and the second stop portions 300-2 are embedded one-to-one in the second through holes 104-2, so that the second stop portions 300-2 are opposite the second swing arms 200-2.

[0124] FIG. 14 is a schematic diagram of a partial enlarged structure of the A area in FIG. 7.

[0125] In combination with FIG. 7 and FIG. 14, in some embodiments, the stop portion 300 includes a protruding portion 301 protruding in the direction of the first sliding portion 103; the protruding portion 301 is configured to abut the second sliding portion 201 to prevent the swing arm 200 from moving when the rotating shaft mechanism is subjected to an acting force.

[0126] The protruding portion 301 protrudes along the z-axis direction towards the support 102, and the distance between the protruding portion 301 and the second sliding portion 201 of the swing arm 200 is at least the first gap L1, so that in normal use, the protruding portion 301 does not hinder the rotation of the swing arm 200.

[0127] When the electronic device falls, the second sliding portion 201 abuts the protruding portion 301 to prevent the swing arm 200 from continuing to rotate along the sliding groove and / or to prevent the swing arm 200 from moving towards the shaft cover 101 by using the protruding portion 301. In this way, the movement of the swing arm 200 is prevented by using the protruding portion 301, which can improve the effect of the stop portion 300 preventing the swing arm 200 from moving.

[0128] The protruding portion 301 can include a first surface 3011 and a second surface 3012, which are connected and both face the first sliding portion 103 of the support 102. The first surface 3011 is adjacent to the side of the shaft cover 101 along the axis direction, and the second surface 3012 is adjacent to the middle of the shaft cover 101. The first surface 3011 and the second surface 3012 form a first included angle a1 facing the shaft cover 101, and the first included angle a1 is an obtuse angle or a right angle.

[0129] In this way, when the rotating shaft mechanism falls, the first included angle a1 of the protruding portion 301 can be used to abut the second sliding portion 201 of the swing arm 200 to prevent the swing arm 200 from continuing to move when falling.

[0130] The first surface 3011 is a plane, and the first surface 3011 has a second included angle a2 with respect to the first direction, and the second included angle a2 is directed to the second surface 3012. The first surface 3011 is in an inclined state, and forms the second included angle a2 with the x-axis direction, and the second included angle a2 is an acute angle. In this way, the protruding part 301 protruding towards the first sliding part 103 can be formed by the inclined first surface 3011 and the second surface 3012, so as to facilitate the use of the protruding part 301 to prevent the swing arm 200 from moving when falling.

[0131] When the first sliding part 103 is a sliding groove, and the second sliding part 201 is a sliding block, the sliding groove is a circular arc groove, and the second surface 3012 is a curved surface. The curvature of the second surface 3012 is the same as the curvature of the lower sliding groove surface 1031 of the first sliding part 103 (the sliding groove), and the centers are the same. In this way, the second surface 3012 can compensate for the discontinuity at the sliding groove due to the through hole 104, so that the second sliding part 201 of the swing arm 200 can slide along the path defined by the second surface 3012 and the lower sliding groove surface 1031 of the sliding groove.

[0132] When the first sliding part 103 is a sliding block, and the second sliding part 201 is a sliding groove, the upper surface 1021a of the boss 1021 of the support 102 is a curved surface, as shown in (b) of FIG. 12. The second surface 3012 is a curved surface, and the curvature of the second surface 3012 is the same as the curvature of the upper surface 1021a of the boss 1021, and the centers are the same. In this way, the second surface 3012 can compensate for the discontinuity at the boss 1021 due to the through hole 104, so that the second sliding part 201 of the swing arm 200 can slide along the path defined by the second surface 3012 and the upper surface 1021a of the boss 1021.

[0133] In some embodiments, the surface of the stop part 300 facing the support 102 can be a plane, which is not shown in the figure. The distance between the plane and the second sliding part 201 is at least the first gap L1, so that the plane does not hinder the rotation of the swing arm 200 in normal use.

[0134] When the electronic device falls, the second sliding part 201 abuts against the plane, so as to prevent the swing arm 200 from continuing to rotate relative to the first sliding part 103 by using the plane, and / or to prevent the swing arm 200 from moving in the direction of the shaft cover 101.

[0135] It should be noted that the structure of the end of the stop part 300 facing the support 102 can be determined according to actual use, and the embodiments of the present application are not limited.

[0136] In some embodiments, the height of the stop portion 300 along the z-axis direction can be determined based on the sliding track of the swing arm 200. When the swivel mechanism is not subjected to an external force, the second sliding portion 201 and the stop portion 300 have a first gap L1 therebetween. That is, when the swivel mechanism is in a normal state, the stop portion 300 does not contact the second sliding portion 201 of the swing arm 200.

[0137] For example, the first sliding block 201-1 and the first stop portion 300 have a first gap L1 therebetween, and the second sliding block 201-2 and the second stop portion 300-2 have a first gap L1 therebetween.

[0138] In this way, when the swing arm 200 rotates around the support 102, the second sliding portion 201 of the swing arm 200 can avoid interfering with the stop portion 300, hindering the rotation of the swing arm 200, and further affecting the folding or unfolding of the swivel mechanism.

[0139] Referring again to FIG. 14, in some embodiments, the second sliding portion 201 includes a sliding portion body 2011 and a sliding portion top end 2012 located at the end of the sliding portion body 2011. The sliding portion body 2011 has the same shape as the first sliding portion 103 (the sliding groove), which is a circular arc shape, to achieve the virtual swivel connection of the swing arm 200 and the support 102.

[0140] When the swivel mechanism is in a folded state, the sliding portion top end 2012 is located above the stop portion 300 with a first gap L1 therebetween. For example, in the folded state, the second sliding portion 201 of the swing arm 200 is partially inserted into the sliding groove, and the sliding portion top end 2012 is located above the stop portion 300. It should be noted that the structure of each second sliding portion 201 of the first swing arm 200-1 and its relative position with the stop portion 300, as well as the structure of each second sliding portion 201 of the second swing arm 200-2 and its relative position with the stop portion 300, can be referred to the content shown in FIG. 14, which will not be described here. In combination with FIG. 7, the sliding portion top end 2012 of the first swing arm 200-1 and the sliding portion top end 2012 of the second swing arm 200-2 are at a certain distance.

[0141] In this way, in the folded state and without being subjected to an external force, the sliding portion top end 2012 of the second sliding portion 201 and the corresponding stop portion 300 have a gap therebetween and do not contact each other. When the swing arm 200 rotates around the support 102, the second sliding portion 201 can avoid interfering with the stop portion 300, hindering the rotation of the swing arm 200, and further affecting the folding or unfolding of the swivel mechanism.

[0142] FIG. 15 is a second cross-sectional structural schematic view of the rotating shaft mechanism according to an embodiment of the present application; and FIG. 16 is a partial enlarged structural schematic view of region B in FIG. 15. In FIG. 15, the cross-sectional partial structure is along the x-axis direction of FIG. 6, and the structure of the rotating shaft mechanism in the unfolded state is shown.

[0143] As shown in FIGS. 15 and 16, in some embodiments, when the rotating shaft mechanism is in the unfolded state, the sliding portion body 2011 is located above the stop portion 300 and is separated by a first gap L1. For example, in the unfolded state, the second sliding portion 201 of the swing arm 200 is completely rotated into the sliding groove, and the sliding portion body 2011 is located above the stop portion 300. It should be noted that the structure of each second sliding portion 201 of the first swing arm 200-1 and the relative position of the second sliding portion 201 to the stop portion 300, and the structure of each second sliding portion 201 of the second swing arm 200-2 and the relative position of the second sliding portion 201 to the stop portion 300 can be referred to the content shown in FIG. 15, and will not be described here. In addition, in the unfolded state, the sliding portion top end 2012 of the first swing arm 200-1 and the sliding portion top end 2012 of the second swing arm 200-2 are adjacent.

[0144] In this way, in the unfolded state and without an acting force, the sliding portion body 2011 of the second sliding portion 201 and the corresponding stop portion 300 have a gap therebetween and will not contact each other. When the swing arm 200 rotates around the support 102, the second sliding portion 201 and the stop portion 300 can be prevented from interfering with each other, which prevents the rotation of the swing arm 200 and further affects the folding or unfolding of the rotating shaft mechanism.

[0145] FIG. 17 is a structural schematic view of the rotating shaft mechanism according to an embodiment of the present application when falling.

[0146] As shown in FIG. 17, in some embodiments, when the rotating shaft mechanism is subjected to an acting force, the second sliding portion 201 and the stop portion 300 move relatively to abut each other to prevent the swing arm 200 from moving.

[0147] In combination with the structure of the rotating shaft mechanism in the normal state shown in FIG. 7 and the structure of the rotating shaft mechanism in the falling state shown in FIG. 17, when the electronic device in the folded state falls, the shaft cover 101 first impacts the ground, the shaft cover 101 is deformed under the force, the shaft cover 101 expands on both sides (D2 direction) and the central region is lifted (D1 direction), which drives the stop portion 300 to move upward. At the same time, under the impact of the falling, the swing arm 200 rotates downward (D3 direction), the gap between the second sliding portion 201 and the stop portion 300 gradually decreases, and the second sliding portion 201 moves downward to abut against the stop portion 300. In this way, the stop portion 300 can be used to prevent the swing arm 200 from continuously sliding relative to the first sliding portion 103.

[0148] Exemplarily, when the electronic device in the folded state falls, the shaft mechanism is subjected to an impact force, the first stop portion 300-1 and the second stop portion 300-2 move upward along the z-axis direction following the deformation of the shaft cover 101, the first swing arm 200-1 and the second swing arm 200-2 rotate outward along the D3 direction under the impact force, and the first swing arm 200-1 and the second swing arm 200-2 are separated, so that the first sliding block 201-1 of the first swing arm 200-1 and the second sliding block 201-2 of the second swing arm 200-2 continue to slide along the corresponding sliding groove under the impact force and / or move downward along the z-axis direction. The first stop portion 300-1 and the first sliding block 201-1 move toward each other and abut against each other, and the second stop portion 300-2 and the second sliding block 201-2 move toward each other and abut against each other.

[0149] In this way, the first stop portion 300-1 can prevent the first swing arm 200-1 from continuing to slide along the first sliding groove 103-1, and the rotation angle of the first swing arm 200-1 can be reduced; meanwhile, the second stop portion 300-2 can prevent the second swing arm 200-2 from continuing to slide along the second sliding groove 103-2, and the rotation angle of the second swing arm 200-2 can be reduced. And / or, the first stop portion 300-1 and the second stop portion 300-2 can prevent the first swing arm 200-1 and the second swing arm 200-2 from moving downward, so as to prevent the corresponding connecting blocks from moving downward, and further prevent the middle frame from moving downward, so as to reduce the invasion amount of the middle frame, and further reduce the risk of the display screen impacting the support 102, avoid the display screen from being damaged, and improve the reliability of the electronic device.

[0150] In some embodiments, the stop portion 300 prevents the swing arm 200 from continuing to slide in different ways according to the size of the impact force to which the shaft mechanism is subjected. Hereinafter, the stop portion 300 is provided with a protruding portion 301 as an example.

[0151] FIG. 18 is a first structure schematic view of the stop portion and the swing arm abutting against each other according to an embodiment of the present application. In FIG. 18, (a) shows the structure of the stop portion 300 and the swing arm 200 when the shaft mechanism is in a normal use state, and (b) shows the structure of the stop portion 300 and the swing arm 200 when the shaft mechanism falls.

[0152] As shown in FIG. 18(a), when the electronic device in the folded state does not fall, the shaft mechanism is in a normal use state, and the top end 2012 of the sliding portion of the second sliding portion 201 of the swing arm 200 and the end of the protruding portion 301 on the stop portion 300 have a first gap.

[0153] As shown in (b) of FIG. 18, when the rotating shaft mechanism is in the folded state and is subjected to the force, the stop portion 300 is configured to abut against the sliding portion top end 2012 of the second sliding portion 201 to prevent the swing arm 200 from continuously sliding relative to the first sliding portion 103 and / or to prevent the swing arm 200 from being displaced toward the shaft cover 101.

[0154] When the drop height of the electronic device in the folded state is low, the force acting on the rotating shaft mechanism is small, and thus the impact force acting on the shaft cover 101 is small, and the distance by which the stop portion 300 moves upward along the z-axis direction is moderate. In this scenario, in combination with FIG. 17, when the shaft cover 101 is deformed under the impact force, the shaft cover expands on both sides and the central region is lifted upward, so that the first stop portion 300-1 and the second stop portion 300-2 move along the z-axis direction toward the swing arm 200 by a moderate distance. At the same time, under the impact force, the swing arm 200 moves downward along the z-axis by a moderate distance, so that the gap between the second sliding portion 201 and the stop portion 300 gradually decreases until the stop portion 300 abuts against the sliding portion top end 2012 of the second sliding portion 201.

[0155] For example, when dropped, the swing arm 200 slightly rotates and sinks and abuts against the lifted stop portion 300. At the abutting position, the stop portion 300 (together with the protruding portion 301) is slightly deformed under the impact force of the swing arm 200, and the deformation direction can be leftward or rightward along the x-axis direction. For example, (b) of FIG. 18 shows a structure in which the stop portion 300 deforms rightward, i.e., tilts toward the middle of the base 100. The abutting position C1 is the position of the sliding portion top end 2012 and the position of the tip of the protruding portion 301.

[0156] In this way, when the electronic device is dropped, the stop portion 300 supports or presses the swing arm 200, which prevents the swing arm 200 from continuously rotating relative to the first sliding portion 103 and / or prevents the swing arm 200 from being displaced toward the shaft cover 101.

[0157] FIG. 19 is a second structure schematic view of the abutting of the stop portion and the swing arm according to an embodiment of the present application. In (a) of FIG. 19, a structure of the stop portion 300 and the swing arm 200 at the beginning of the drop is shown, and in (b) of FIG. 19, a structure of the stop portion 300 and the swing arm 200 at the end of the drop is shown.

[0158] As shown in (a) and (b) of FIG. 19, in some embodiments, when the rotating shaft mechanism is in the folded state and is subjected to the force, the stop portion 300 is configured to slide from abutting against the sliding portion top end 2012 of the second sliding portion 201 to abutting against the sliding portion body 2011 to prevent the swing arm 200 from continuously sliding relative to the first sliding portion 103 and / or to prevent the swing arm 200 from being displaced toward the shaft cover 101.

[0159] When the electronic device is dropped in a folding state, the shaft cover 101 is subjected to an impact force, and the stop portion 300 moves upward along the z-axis direction by a distance. In this scenario, as shown in FIG. 17, when the shaft cover 101 is subjected to an impact force, the shaft cover is deformed, the two sides of the shaft cover are spread outward, and the central region is lifted upward, so that the first stop portion 300-1 and the second stop portion 300-2 move along the z-axis direction to the swing arm 200 by a distance. At the same time, the swing arm 200 moves downward along the z-axis by a distance under the action of the impact force, so that the gap between the second sliding portion 201 and the stop portion 300 gradually decreases, and the stop portion 300 is slid from the sliding portion top end 2012 of the second sliding portion 201 to abut against the sliding portion body 2011.

[0160] For example, when the electronic device is dropped and subjected to an impact force, the swing arm 200 is excessively rotated and sinks, and abuts against the stop portion 300. At the time of abutment, the stop portion 300 (together with the protruding portion 301) is subjected to an impact force of the swing arm 200, and the deformation is increased in amplitude, and the deformation direction is the same as above, which is not described herein again. FIG. 19 shows a structure in which the stop portion 300 is inclined to the middle portion of the base 100 and the amplitude of deformation is increased. The position at which the second sliding portion 201 of the swing arm 200 abuts against the stop portion 300 is slid from position C1 to position C2, so that a frictional force is generated between the stop portion 300 and the second sliding portion 201.

[0161] In this way, when the electronic device is dropped, the swing arm 200 is pressed by the stop portion 300, and a frictional force is generated by the sliding of the stop portion 300 and the second sliding portion 201 of the swing arm 200, so that the continued rotation of the swing arm 200 relative to the first sliding portion 103 is buffered, and / or the displacement of the swing arm 200 in the direction of the shaft cover 101 is prevented.

[0162] FIG. 20 is a third structure schematic view of the stop portion and the swing arm when they abut against each other according to an embodiment of the present application. In FIG. 20, (a) shows the structure of the stop portion 300 and the swing arm 200 when the shaft mechanism is in a normal use state, and (b) shows the structure of the stop portion 300 and the swing arm 200 when the shaft mechanism is dropped.

[0163] As shown in (a) and (b) of FIG. 20, in some embodiments, when the shaft mechanism is in a folding state and is subjected to an impact force, the stop portion 300 is configured to deform in a first direction (x-axis direction) when it abuts against the second sliding portion 201.

[0164] When the falling height of the electronic device in the folded state is large, the force acting on the rotating shaft mechanism is large, the impact force acting on the shaft cover 101 is moderate, and the distance of the stop portion 300 moving upward along the z-axis direction is large. In this scenario, in combination with FIG. 17, when the shaft cover 101 is subjected to the impact force, the shaft cover 101 deforms, the two sides of the shaft cover 101 expand outward, and the central region lifts upward, so that the first stop portion 300-1 and the second stop portion 300-2 move a large distance along the z-axis direction to the direction of the swing arm 200. At the same time, under the action of the impact force, the swing arm 200 moves a large distance downward along the z-axis, so that the gap between the second sliding portion 201 and the stop portion 300 gradually decreases, and after the stop portion 300 abuts against the sliding portion top end 2012 of the second sliding portion 201, the impact force of the second sliding portion 201 on the stop portion 300 is too large, so that the stop portion 300 bends inward along the rotation direction of the swing arm 200 and deforms to release the impact force in the fall.

[0165] For example, when the impact force in the fall is large, the swing arm 200 further over-rotates and sinks, and at the same time, the support 102 also sinks, and the swing arm 200 abuts against the stop portion 300. At the time of abutment, the stop portion 300 (together with the protruding portion 301) is subjected to the impact force of the swing arm 200 and plastically deforms greatly, and the deformation direction is the same as above, which will not be described herein again. FIG. 20 shows a structure in which the stop portion 300 plastically deforms greatly in the direction of the middle part of the base 100. The position at which the second sliding portion 201 of the swing arm 200 abuts against the stop portion 300 slides to position C3, and the lower surface of the second sliding portion 201 abuts against the first surface 3011 of the protruding portion 301.

[0166] In this way, when the electronic device falls, the swing arm 200 impacts the stop portion 300 by over-rotation, so that the stop portion 300 deforms to release the impact force, thereby preventing the swing arm 200 from continuing to rotate relative to the first sliding portion 103 and / or preventing the swing arm 200 from moving in the direction of the shaft cover 101.

[0167] It should be noted that since the structures on both sides of the rotating shaft mechanism are symmetrical relative to the axis, the rotation directions of the first swing arm 200-1 and the second swing arm 200-2 are symmetrical when falling, and the deformation directions of the first stop portion 300-1 and the second stop portion 300-2 are also symmetrical. Then, when the swing arm 200 abuts against the stop portion 300 due to the fall, the corresponding structures can be referred to the contents of any of the foregoing embodiments, which will not be described herein again.

[0168] Referring again to FIG. 14, in some embodiments, when the force acting on the rotating shaft mechanism disappears, the second sliding portion 201 and the stop portion 300 move away from each other, and the interval between the sliding portion top end 2012 of the second sliding portion 201 and the stop portion 300 increases to the second gap.

[0169] After the electronic device lands after falling, the force acting on the rotating shaft mechanism disappears, and the shaft cover 101 slowly deforms and returns to the normal state. For example, based on the falling scenario shown in FIGS. 18 and 19, and in combination with FIG. 7, when the force acting on the rotating shaft mechanism disappears, the bracket 102 lifts in the z-axis direction away from the shaft cover 101, and the shaft cover 101 and the stop portion 300 sink in the z-axis direction away from the bracket 102. At the same time, the stop portion 300 returns from the inclined state to the vertical state, so that the shaft cover 101, the swing arm 200, and the stop portion 300 all return to the state before falling, and the interval between the sliding portion top end 2012 of the second sliding portion 201 and the stop portion 300 increases to the second gap.

[0170] For example, based on the falling scenario shown in FIG. 20, and in combination with FIG. 7, when the force acting on the rotating shaft mechanism disappears, the bracket 102 lifts in the z-axis direction away from the shaft cover 101, and the shaft cover 101 and the stop portion 300 sink in the z-axis direction away from the bracket 102, and the shaft cover 101 and the swing arm 200 return to the state before falling. At the same time, the stop portion 300 does not return or less returns from the plastic deformation state to the vertical state, and the interval between the sliding portion top end 2012 of the second sliding portion 201 and the stop portion 300 increases to the second gap.

[0171] The second gap can be equal to the first gap, greater than the first gap, or less than the first gap. That is, after the force acting on the rotating shaft mechanism disappears, the distance between the second sliding portion 201 of the swing arm 200 and the stop portion 300 gradually increases from the abutting state, and it is only required that there is a gap between the second sliding portion 201 and the stop portion 300.

[0172] In this way, the gap between the stop portion 300 and the swing arm 200 can be restored to a normal starting condition, that is, in the folded state, the interval between the sliding portion top end 2012 of the second sliding portion 201 and the stop portion 300 increases to the second gap, and in the unfolded state, the interval between the sliding portion top end 2012 of the second sliding portion 201 and the stop portion 300 increases to the second gap, to ensure that the rotating shaft mechanism switches between folding and unfolding in the normal use process, and to avoid affecting the use of the electronic device.

[0173] FIG. 21 is a schematic diagram of a partial structure of a shaft cover and a bracket provided in an embodiment of the present application.

[0174] As shown in FIG. 21, in some embodiments, the outer side surface 300a of the stop portion 300 abuts against the outer side surface 104a of the through hole 104. The outer side surface refers to the surface of the stop portion 300 / through hole 104 adjacent to the side of the shaft cover 101 along the z-axis direction, that is, the surface adjacent to the external environment.

[0175] For example, the outer side surface 300a-1 of the first stop portion 300-1 is in abutment with the outer side surface 104a-1 of the first through hole 104-1, and the outer side surface 300a-2 of the second stop portion 300-2 is in abutment with the outer side surface 104a-2 of the second through hole 104-2. It should be noted that the gap between the outer side surface 300a of the stop portion 300 and the outer side surface 104a of the through hole 104 in FIG. 21 is only for the convenience of showing the structure of the outer side surface 300a of the stop portion 300 and the outer side surface 104a of the through hole 104, and does not constitute a limitation on the relationship between the two.

[0176] In this way, through the precise fit of the side wall of the through hole 104 on the support 102 and the side wall of the stop portion 300 of the shaft cover 101, the positioning of the shaft cover 101 and the support 102 in the x-axis direction is achieved, and the mutual deflection of the shaft cover 101 and the support 102 is prevented, thereby reducing the risk of scratching the shaft cover 101 by the middle frames of the first body 10 and the second body 20 during the bending process.

[0177] The pivot mechanism provided by the embodiments of the present application has the following advantages. When the electronic device falls in the folded state, the swing arm 200 tends to move in the direction of the base 100 along the z-axis direction, at the same time, the central region of the support 102 is lifted, driving the stop portion 300 to move in the direction of the swing arm 200 along the z-axis direction. The stop portion 300 is in abutment with the swing arm 200, which can prevent the swing arm 200 from continuing to slide relative to the first sliding portion 103, and can reduce the rotation angle of the swing arm 200; and / or, the stop portion 300 can prevent the swing arm 200 from moving in the direction of the base 100. In this way, the swing arm 200 can be prevented from driving the first body 10 and the second body 20 to move downward along the z-axis direction through the first connecting block 403 and the second connecting block 404, so as to reduce the intrusion amount of the middle frames of the first body 10 and the second body 20, and further avoid the display screen 30 from colliding with the base 100 driven by the first body 10 and the second body 20, so as to avoid the display screen 30 from being damaged, and improve the reliability of the electronic device.

[0178] Referring again to FIG. 1, the embodiments of the present application also provide an electronic device, which comprises a display screen 30, a first body 10, a second body 20, and a pivot mechanism provided by any one of the preceding embodiments.

[0179] The first body 10 and the second body 20 are located on opposite sides of the axis direction of the pivot mechanism, and the first body 10 and the second body 20 are connected with the pivot mechanism respectively; the display screen 30 covers the first body 10, the second body 20 and the pivot mechanism, and the first body 10 and the second body 20 rotate with the folding or unfolding of the pivot mechanism, so as to drive the display screen 30 to fold or unfold.

[0180] It should be noted that the structure of the electronic device can refer to the structure of the electronic device shown in FIG. 1, which will not be described here.

[0181] The electronic device provided by the embodiment of the present application adopts the rotation shaft mechanism provided with the stop part 300, which can optimize the rotation angle of the swing arm 200 when falling, and disperse the impact capacity to the shaft cover 101, reduce the risk of the middle frame invasion and the screen impact base 100, and optimize the reliability of the electronic device in the bending process.

[0182] It should be noted that other embodiments of the present application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. The present application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice in the art to which the application pertains. The specification and examples are to be regarded as illustrative only, and the true scope of the application is indicated by the following claims.

[0183] It should be understood that the application is not limited to the precise construction that has been described above and shown in the accompanying drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application is limited only by the claims that follow.

Claims

1. A rotation shaft mechanism characterized by comprising: The hinge mechanism comprises: a base (100) comprising a shaft cover (101) and a support (102) connected to each other; a swing arm (200) located on one side of the base (100) and rotationally connected to the support (102); a stop portion (300) located on the shaft cover (101) and extending towards the support (102), the stop portion (300) being opposite to the swing arm (200); the stop portion (300) is configured to prevent the swing arm (200) from moving when the hinge mechanism is in a folded state and subjected to an external force.

2. The hinge mechanism according to claim 1, wherein: the support (102) comprises a first sliding portion (103) opposite to the stop portion (300); the swing arm (200) comprises a second sliding portion (201) configured to slide with the first sliding portion (103) when the hinge mechanism rotates, thereby enabling the swing arm (200) to rotate around the support (102).

3. The hinge mechanism according to claim 2, wherein: the first sliding portion (103) is a sliding groove, and the second sliding portion (201) is a sliding block; or the first sliding portion (103) is a sliding block, and the second sliding portion (201) is a sliding groove; the sliding block is embedded in the sliding groove, and is configured to slide along the sliding groove when the hinge mechanism rotates.

4. The hinge mechanism according to claim 2, wherein: when the hinge mechanism is not subjected to an external force, the second sliding portion (201) and the stop portion (300) have a first gap therebetween; when the hinge mechanism is subjected to an external force, the second sliding portion (201) and the stop portion (300) move relative to each other and abut, thereby preventing the swing arm (200) from moving.

5. The hinge mechanism according to claim 4, wherein: the second sliding portion (201) comprises a sliding portion body (2011) and a sliding portion top end (2012); when the hinge mechanism is in an unfolded state, the sliding portion body (2011) is located above the stop portion (300) and spaced apart from the first gap; when the hinge mechanism is in a folded state, the sliding portion top end (2012) is located above the stop portion (300) and spaced apart from the first gap.

6. The hinge mechanism according to claim 5, wherein: when the hinge mechanism is in a folded state and subjected to the external force, the stop portion (300) is configured to abut against the sliding portion top end (2012) of the second sliding portion (201), thereby preventing the swing arm (200) from continuously sliding relative to the first sliding portion (103) and / or preventing the swing arm (200) from moving towards the shaft cover (101).

7. The hinge mechanism according to claim 5, wherein: When the shaft mechanism is in the folded state and subjected to the force, the stop portion (300) is configured to slide against the second sliding portion (201) to abut against the sliding portion body (2011) to prevent the swing arm (200) from continuing to slide relative to the first sliding portion (103) and / or to prevent the swing arm (200) from moving in the direction of the shaft cover (101).

8. The shaft mechanism according to claim 5, wherein, When the shaft mechanism is in the folded state and subjected to the force, the stop portion (300) is configured to deform in a first direction when abutting against the second sliding portion (201); wherein the first direction is perpendicular to the axis direction of the shaft mechanism.

9. The shaft mechanism according to any one of claims 6-8, wherein, When the force applied to the shaft mechanism disappears, the second sliding portion (201) and the stop portion (300) move away from each other, and the gap between the sliding portion top end (2012) of the second sliding portion (201) and the stop portion (300) increases to a second gap.

10. The shaft mechanism according to claim 2, wherein, The support (102) further comprises a through hole (104) located on the side of the first sliding portion (103) close to the shaft cover (101); The stop portion (300) is embedded in the through hole (104).

11. The shaft mechanism according to claim 10, wherein, When the first sliding portion (103) is a sliding groove, the through hole (104) communicates with the sliding groove; When the first sliding portion (103) is a sliding block, the side of the support (102) close to the shaft cover (101) comprises a boss (1021) extending below the second sliding portion (201); the through hole (104) penetrates the boss (1021) to be opposite to the second sliding portion (201).

12. The shaft mechanism according to claim 10, wherein, In a first direction, the width of the through hole (104) is greater than or equal to the width of the stop portion (300); wherein the first direction is perpendicular to the axis direction of the shaft mechanism.

13. The shaft mechanism according to claim 12, wherein, The outer surface of the stop portion (300) abuts against the outer surface of the through hole (104).

14. The shaft mechanism according to claim 13, wherein, The stop portion (300) comprises a protruding portion (301) protruding in the direction of the first sliding portion (103); The protruding portion (301) is configured to abut against the second sliding portion (201) when the shaft mechanism is subjected to the force to prevent the swing arm (200) from moving.

15. The shaft mechanism according to claim 14, wherein, The protruding part (301) comprises a first surface (3011) and a second surface (3012); The first surface (3011) and the second surface (3012) are connected and both face the first sliding part (103); The first surface (3011) and the second surface (3012) form a first included angle towards the shaft cover (101).

16. The shaft mechanism according to claim 15, wherein, When the first sliding part (103) is a sliding groove, the sliding groove is a circular arc groove, and the second surface (3012) is a curved surface; The curvature of the curved surface is the same as the curvature of the lower sliding groove surface of the circular arc groove, and the centers are the same.

17. The shaft mechanism according to claim 15, wherein, The first surface (3011) has a second included angle relative to the first direction towards the second surface (3012).

18. An electronic device, comprising: The device comprises a display screen, a first body, a second body, and a shaft mechanism according to any one of claims 1-17; The first body and the second body are located on opposite sides of the shaft mechanism in the axial direction, and the first body and the second body are connected to the shaft mechanism respectively; The display screen covers the first body, the second body, and the shaft mechanism, and the first body and the second body rotate with the folding or unfolding of the shaft mechanism to drive the folding or unfolding of the display screen.

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