Rotating shaft mechanism and foldable electronic equipment

Abstract

According to the rotating shaft mechanism and the foldable electronic equipment provided by the invention, the accommodating space of the inner side of the rotating shaft mechanism on a display screen can be increased, and the extrusion of the rotating shaft mechanism on the display screen in a ridge falling process is reduced, so that the display screen can be prevented from being broken, and the falling resistance and the use reliability of the foldable electronic equipment are improved. The rotating shaft mechanism comprises a fixed seat, a first swing arm and a first door plate, the first swing arm is rotatably connected to the fixed seat, the first door plate is located on one side of the fixed seat and connected with the first swing arm, the first door plate comprises a first top surface and a first side surface, the first side surface is fixedly connected to the first top surface and faces the fixed seat, and the first door plate is provided with a first avoiding groove; an opening of the first avoiding groove is located in the first top face, the first avoiding groove penetrates through the first side face, and at least part of the first avoiding groove and the first swing arm are arranged in a staggered mode in the length direction of the rotating shaft mechanism.

Description

Technical Field

[0001] The present application relates to the technical field of electronic devices, and particularly to a rotating shaft mechanism and a foldable electronic device. Background Art

[0002] A foldable electronic device is an electronic device with a folding function, which can be used in both unfolded and folded states. In recent years, foldable electronic devices have been favored by consumers due to their advantages such as a large display area and convenient portability. However, in existing foldable electronic devices, when the foldable electronic device in the folded state experiences a corner drop, due to the poor reliability of the rotating shaft mechanism in the foldable electronic device, the rotating shaft mechanism will undergo large deformation and squeeze the display screen of the foldable electronic device, resulting in the rupture of the display screen and reducing the use reliability of the foldable electronic device. Summary of the Utility Model

[0003] The present application provides a rotating shaft mechanism and a foldable electronic device, which can increase the accommodation space for the display screen inside the rotating shaft mechanism, reduce the extrusion of the display screen by the rotating shaft mechanism during the corner drop process, thereby preventing the display screen from rupturing and improving the anti-drop ability and use reliability of the foldable electronic device.

[0004] In a first aspect, the present application provides a rotating shaft mechanism for use in a foldable electronic device. The rotating shaft mechanism includes a fixed seat, a first swing arm, and a first door panel. The first swing arm is rotatably connected to the fixed seat. The first door panel is located on one side of the fixed seat and is connected to the first swing arm. The first door panel includes a first top surface and a first side surface. The first side surface is fixedly connected to the first top surface and faces the fixed seat. The first door panel is provided with a first avoidance groove. The opening of the first avoidance groove is located on the first top surface, and the first avoidance groove penetrates the first side surface. Along the length direction of the rotating shaft mechanism, at least a part of the first avoidance groove is arranged in a dislocation manner with the first swing arm. In this embodiment, by providing the first avoidance groove on the first door panel and arranging at least a part of the first avoidance groove in a dislocation manner with the first swing arm, when the foldable electronic device in the folded state experiences a corner drop, the rotating shaft mechanism deforms and squeezes the display screen of the foldable electronic device. At this time, the first avoidance groove can avoid the display screen of the foldable electronic device to reduce the extrusion of the display screen by the rotating shaft mechanism during the corner drop process, prevent the display screen from rupturing, thereby helping to improve the anti-drop reliability of the display screen, and further being beneficial to improving the use reliability of the foldable electronic device. At the same time, the stress generated by the display screen during the corner drop process can be released through the first avoidance groove, preventing the display screen from rupturing due to excessive stress concentration during the corner drop process, thereby also helping to improve the anti-drop reliability of the display screen, and further being beneficial to improving the use reliability of the foldable electronic device and extending the service life of the foldable electronic device.

[0005] In a possible implementation, along the length direction of the rotating shaft mechanism, the first avoidance groove and the first swing arm are arranged at intervals, so that the first avoidance groove and the first swing arm are completely misaligned.

[0006] In a possible implementation, the rotating shaft mechanism further includes a damping member, and the damping member is installed on the fixed seat. Along the length direction of the rotating shaft mechanism, the damping member is arranged opposite to at least a part of the first avoidance groove. It can be understood that when the foldable electronic device in the folded state experiences a corner drop, the deformation amount at the position where the damping member is installed in the rotating shaft mechanism is relatively large, and the extrusion on the display screen of the foldable electronic device is also serious. By arranging the damping member opposite to at least a part of the first avoidance groove, the first avoidance groove can be used to avoid the display screen, so as to reduce the extrusion effect of the rotating shaft mechanism on the display screen, thereby preventing the display screen from cracking, and further contributing to improving the anti-drop ability and use reliability of the foldable electronic device.

[0007] In a possible implementation, the first avoidance groove includes a first groove bottom wall surface, and the first groove bottom wall surface is connected between the first top surface and the first side surface. From one end of the first groove bottom wall surface close to the first top surface to the direction of the end of the first groove bottom wall surface away from the first top surface, the distance between the first groove bottom wall surface and the first top surface gradually increases. Among them, the first groove bottom wall surface can be an arc surface or an inclined surface.

[0008] In a possible implementation, the first avoidance groove further includes a first transition surface and a second transition surface. The first transition surface is connected between the first groove bottom wall surface and the first top surface, and the second transition surface is connected between the first groove bottom wall surface and the first side surface. Among them, both the first transition surface and the second transition surface are arc chamfer surfaces to prevent the groove wall surface of the first avoidance groove from scratching the display screen.

[0009] In a possible implementation, the first groove bottom wall surface may further include a first sub-surface and a second sub-surface. The first sub-surface is connected to the first top surface and is spaced from the first side surface. The second sub-surface is located on the side of the first sub-surface close to the first side surface, and is connected between the first sub-surface and the first side surface and intersects both the first sub-surface and the first side surface. In other words, the groove wall surface of the first avoidance groove is distributed in a stepped shape.

[0010] In a possible implementation, the first groove bottom wall surface further includes a third transition surface, and the third transition surface is connected between the first sub-surface and the second sub-surface. Among them, the third transition surface is an arc chamfer surface to prevent scratching the display screen.

[0011] In a possible implementation manner, the rotating shaft mechanism further includes a second swing arm, which is rotatably connected to the fixed seat, is spaced from the first swing arm, and is connected to the first door panel; along the length direction of the rotating shaft mechanism, at least part of the first avoidance groove is arranged in a dislocation manner with the second swing arm. It can be understood that during the dropping process, the deformation amount of the installation position of the second swing arm in the rotating shaft mechanism is small, while the deformation amount of other positions is large. By arranging at least part of the first avoidance groove in a dislocation manner with the second swing arm, the extrusion of the position with a large deformation amount in the rotating shaft mechanism on the display screen can be reduced, so as to prevent the display screen from cracking, and further contribute to improving the anti-drop ability and use reliability of the foldable electronic device.

[0012] In a possible implementation manner, along the length direction of the rotating shaft mechanism, the first avoidance groove is spaced from the second swing arm so that the first avoidance groove is completely dislocated from the second swing arm.

[0013] In a possible implementation manner, along the length direction of the rotating shaft mechanism, the first avoidance groove is located between the first swing arm and the second swing arm. It can be understood that when the rotating shaft mechanism in the folded state drops, the deformation amount between the first swing arm and the second swing arm is large. By arranging the first avoidance groove between the first swing arm and the second swing arm, the extrusion of the position between the first swing arm and the second swing arm on the display screen can be reduced, so as to prevent the display screen from cracking, and further contribute to improving the anti-drop ability and use reliability of the foldable electronic device.

[0014] In a possible implementation manner, the second swing arm is slidably connected to the first door panel, and the second swing arm includes a first abutting surface facing away from the fixed seat; the first door panel further includes a first support plate and a first stop block, the first stop block is fixedly connected to the bottom surface of the first support plate, and the first stop block includes a second abutting surface facing the fixed seat. Along the sliding direction of the second swing arm relative to the first door panel, the second abutting surface is arranged opposite to the first abutting surface. In this embodiment, when the rotating shaft mechanism in the folded state drops, the impact force received by the rotating shaft mechanism is transmitted from the first door panel to the second swing arm. At this time, the first stop block slides in the direction of the second swing arm, and the second abutting surface abuts against the first abutting surface, so that the dropping intrusion amount of the second swing arm during the dropping process can be reduced, and the deformation amount of the position of the second swing arm in the rotating shaft mechanism during the dropping process is small, which is beneficial to enhancing the stiffness of the rotating shaft mechanism, improving the reliability of the rotating shaft machine, and further contributing to increasing the supporting force of the rotating shaft mechanism on the display screen during the dropping process, so as to improve the anti-drop ability of the display screen of the foldable electronic device and ensure good use reliability of the whole foldable electronic device.

[0015] In a possible embodiment, the pivot mechanism further includes a third swing arm and a second door panel, the third swing arm is rotatably connected to the fixed seat, the second door panel is located at one side of the fixed seat and is connected to the third swing arm; when the pivot mechanism is in an unfolded state, the first swing arm and the third swing arm are respectively located at opposite sides of the fixed seat, and the first door panel and the second door panel are respectively located at opposite sides of the fixed seat. The second door panel includes a second top surface and a second side surface, the second side surface is fixedly connected to the second top surface and is arranged toward the fixed seat, the second door panel is provided with a second avoidance groove, the opening of the second avoidance groove is located at the second top surface, the second avoidance groove runs through at least a portion of the second side surface, and along the width direction of the pivot mechanism, at least a portion of the second avoidance groove is staggered with the third swing arm. In this embodiment, by providing a second avoidance groove on the second door panel, and making at least part of the second avoidance groove staggered with the third swing arm, when the foldable electronic device in the folded state falls, the hinge mechanism deforms and squeezes the display screen of the foldable electronic device. At this time, the second avoidance groove can also avoid the display screen of the foldable electronic device, further reducing the squeezing of the display screen by the hinge mechanism during the fall, preventing the display screen from breaking, thereby further improving the anti-fall reliability of the display screen and improving the reliability of the use of the foldable electronic device. At the same time, the stress generated by the display screen during the fall can also be released through the second avoidance groove, further preventing the display screen from breaking due to excessive concentration of stress generated during the fall, thereby also helping to improve the reliability of the display screen in resisting falling, and further helping to improve the reliability of the use of the foldable electronic device and extend the service life of the foldable electronic device.

[0016] In the second aspect, the present application further provides a foldable electronic device, comprising a first shell, a second shell, a display screen and the above-mentioned hinge mechanism, wherein the hinge mechanism is connected between the first shell and the shell, the display screen comprises a first part, a second part and a foldable part, the first part is mounted on the first shell, the second part is mounted on the second shell, and the foldable part is arranged opposite to the hinge mechanism; when the foldable electronic device is in a folded state, the first avoidance groove avoids the foldable part. In this embodiment, by applying the above-mentioned hinge mechanism to the foldable electronic device, when the foldable electronic device in the folded state falls, the first avoidance groove can avoid the foldable part of the display screen, reduce the squeezing of the display screen by the hinge mechanism, thereby preventing the display screen from breaking, improving the anti-fall reliability of the display screen, and further facilitating improving the reliability of the use of the foldable electronic device. Brief Description of the Figures

[0017] To more clearly illustrate the technical solutions in the embodiments of the present application or the background art, the following will describe the drawings required for use in the embodiments of the present application or the background art.

[0018] Figure 1 It is a schematic structural diagram of the foldable electronic device provided by the embodiment of the present application in the folded state;

[0019] Figure 2 It is a schematic structural diagram of the foldable electronic device provided by the embodiment of the present application in the hovering state;

[0020] Figure 3 It is a schematic structural diagram of the foldable electronic device provided by the embodiment of the present application in the flattened state;

[0021] Figure 4 is Figure 3 a schematic exploded structural diagram of the foldable electronic device shown;

[0022] Figure 5 is Figure 4 a schematic structural diagram of the rotating shaft mechanism in the foldable electronic device shown;

[0023] Figure 6 is Figure 5 a schematic structural diagram of the rotating shaft mechanism in another state;

[0024] Figure 7 is Figure 5 a schematic exploded structural diagram of the rotating shaft mechanism shown;

[0025] Figure 8 is Figure 7 a partial schematic structural diagram of the fixed seat in the rotating shaft mechanism shown;

[0026] Figure 9 is Figure 7 a partial exploded schematic structural diagram of the first rotating component in the rotating shaft mechanism shown;

[0027] Figure 10 is Figure 9 a partial exploded schematic structural diagram of the first rotating component at another angle;

[0028] Figure 11 is Figure 7 a schematic structural diagram of the door panel component in the first rotating component shown;

[0029] Figure 12 is Figure 11 a schematic structural diagram of the door panel component at another angle;

[0030] Figure 13 is Figure 5Schematic cross-sectional view of the shown rotating shaft mechanism after being cut along A-A in the first embodiment;

[0031] Figure 14 is Figure 13 Schematic cross-sectional view of the shown rotating shaft mechanism in the folded state;

[0032] Figure 15 is Figure 14 Schematic cross-sectional view of the shown rotating shaft mechanism and a part of the display screen;

[0033] Figure 16 is Figure 6 Schematic cross-sectional view of the shown rotating shaft mechanism after being cut along B-B in the folded state;

[0034] Figure 17 is Figure 1 Simulation diagram of the shown foldable electronic device experiencing a corner drop;

[0035] Figure 18 is Figure 5 Schematic cross-sectional view of the shown rotating shaft mechanism after being cut along A-A in the second embodiment;

[0036] Figure 19 is Figure 18 Schematic cross-sectional view of the shown rotating shaft mechanism in the folded state;

[0037] Figure 20 is Figure 5 Schematic cross-sectional view of the shown rotating shaft mechanism after being cut along A-A in the third embodiment;

[0038] Figure 21 is Figure 20 Schematic cross-sectional view of the shown rotating shaft mechanism in the folded state. Detailed implementation manners

[0039] The embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

[0040] Please refer to Figures 1 to 3 , Figure 1 which is a schematic structural view of the foldable electronic device 1000 provided by the embodiments of the present application in the folded state, Figure 2 which is a schematic structural view of the foldable electronic device 1000 provided by the embodiments of the present application in the hovering state, Figure 3 which is a schematic structural view of the foldable electronic device 1000 provided by the embodiments of the present application in the flattened state.

[0041] For ease of description, the width direction of the foldable electronic device 1000 is defined as the X-axis direction, the length direction of the foldable electronic device 1000 is defined as the Y-axis direction, and the thickness direction of the foldable electronic device 1000 is defined as the Z-axis direction. The X-axis direction, Y-axis direction, and Z-axis direction are perpendicular to each other in pairs.

[0042] The foldable electronic device 1000 includes, but is not limited to, a cellphone, a notebook computer, a tablet personal computer, a laptop computer, a personal digital assistant, a wearable device, or a mobile device in a vehicle, etc. In the embodiments of the present application, the foldable electronic device 1000 is taken as an example of a cellphone for illustration.

[0043] In this embodiment, when the foldable electronic device 1000 is in a hovering state, the unfolding angle α of the foldable electronic device 1000 is 90 degrees. When the foldable electronic device 1000 is in a flattened state, the unfolding angle β of the foldable electronic device 1000 is 180 degrees. It should be noted that there are allowable slight deviations for the angles exemplified in the embodiments of the present application. For example, Figure 2 The unfolding angle α of the foldable electronic device 1000 shown as 90 degrees means that α can be 90 degrees or approximately 90 degrees, such as 80 degrees, 85 degrees, 95 degrees, or 100 degrees, etc. Figure 3 The unfolding angle β of the foldable electronic device 1000 shown as 180 degrees 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 exemplified hereinafter can be understood in the same way.

[0044] The foldable electronic device 1000 shown in the embodiments of the present application is an electronic device that can be folded once. In some other embodiments, the foldable electronic device 1000 can also be an electronic device that can be folded multiple times (more than two times). At this time, the foldable electronic device 1000 can include multiple parts, and two adjacent parts can be relatively close to each other and folded until the foldable electronic device 1000 is in a folded state, and two adjacent parts can be relatively far away from each other and unfolded until the foldable electronic device 1000 is in a flattened state.

[0045] Please refer to Figure 4 , Figure 4 which Figure 3 is a schematic exploded view of the foldable electronic device 1000 shown.

[0046] The foldable electronic device 1000 includes a folding device 500 and a display screen 400, and the display screen 400 is mounted on the folding device 500. Among them, the display screen 400 includes a display surface 400a and a mounting surface 400b. Along the thickness direction of the display screen 400, the display surface 400a and the mounting surface 400b are arranged opposite to each other. The display surface 400a is used for displaying texts, images, videos, etc. The display screen 400 further includes a first part 410, a second part 420, and a foldable part 430, and the foldable part 430 is located between the first part 410 and the second part 420. Among them, the foldable part 430 can be bent along the X-axis direction. In this embodiment, the display screen 400 is a flexible display screen. For example, the display screen 400 can be an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode display screen, a micro organic light-emitting diode display screen, a micro organic light-emitting diode display screen, or a quantum dot light-emitting diode (QLED) display screen, etc.

[0047] In this embodiment, the folding device 500 is fixedly connected to the mounting surface 400b of the display screen 400. The folding device 500 includes a first housing 510, a second housing 520, and a rotating shaft mechanism 530. Along the X-axis direction, the first housing 510 and the second housing 520 are respectively mounted on opposite sides of the rotating shaft mechanism 530 and can both rotate relative to the rotating shaft mechanism 530. Specifically, the first housing 510 carries the first part 410 of the display screen 400, and the second housing 520 carries the second part 420 of the display screen 400. In other words, the first part 410 of the display screen 400 is mounted on the first housing 510, and the second part 420 of the display screen 400 is mounted on the second housing 520. The rotating shaft mechanism 530 is disposed opposite to the foldable part 430 of the display screen 400. Among them, the first housing 510 and the second housing 520 can rotate relative to each other through the rotating shaft mechanism 530, so that the folding device 500 can be switched between a folded state and a flattened state.

[0048] Please refer to Figure 1When the first housing 510 and the second housing 520 rotate relative to each other through the rotating shaft mechanism 530 and the first housing 510 and the second housing 520 approach each other, the display screen 400 folds under the drive of the first housing 510 and the second housing 520, so that the foldable electronic device 1000 folds. When the foldable electronic device 1000 is in the folded state, the foldable portion 430 of the display screen 400 is bent, and the first portion 410 and the second portion 420 of the display screen 400 are disposed opposite to each other. At this time, the display screen 400 is between the first housing 510 and the second housing 520, which can greatly reduce the probability of the display screen 400 being damaged and effectively protect the display screen 400.

[0049] Please refer to Figure 2 and Figure 4 When the first housing 510 and the second housing 520 rotate relative to each other through the rotating shaft mechanism 530 and the first housing 510 and the second housing 520 move away from each other, the display screen 400 unfolds under the drive of the first housing 510 and the second housing 520, so that the foldable electronic device 1000 unfolds to the hovering state. When the foldable electronic device 1000 is in the hovering state, the first housing 510 and the second housing 520 unfold to an included angle of α. The first portion 410 and the second portion 420 of the display screen 400 unfold relatively and drive the foldable portion 430 to unfold. At this time, the included angle between the first portion 410 and the second portion 420 is α. Exemplarily, α can be 90 degrees. In some other embodiments, α can also be approximately 90 degrees, or can be 80 degrees, 85 degrees, 95 degrees or 100 degrees, etc.

[0050] Please refer to Figure 3 and Figure 4 In this embodiment, when the first housing 510 and the second housing 520 rotate relative to each other through the rotating shaft mechanism 530 and the first housing 510 and the second housing 520 move away from each other, the display screen 400 further unfolds under the drive of the first housing 510 and the second housing 520 until the foldable electronic device 1000 is flattened. When the folding device 500 is in the flattened state, the included angle between the first housing 510 and the second housing 520 is β. The foldable portion 430 of the display screen 400 unfolds, and the first portion 410 and the second portion 420 unfold relatively. At this time, the included angles between the first portion 410, the second portion 420 and the foldable portion 430 are all β, and the display screen 400 has a large display area, realizing the large-screen display of the foldable electronic device 1000 and improving the user experience. Exemplarily, β is 180 degrees. In some other embodiments, β can also be approximately 180 degrees, and can be 170 degrees, 175 degrees, 185 degrees and 190 degrees, etc.

[0051] It should be noted that both the included angle α and the included angle β are the included angles between the first housing 510 and the second housing 520. Here, it is only to distinguish the different angles between the first housing 510 and the second housing 520 of the foldable electronic device 1000 in different states. Among them, the included angle α refers to the angle between the first housing 510 and the second housing 520 when the foldable electronic device 1000 is in the hovering state, and the included angle β refers to the angle between the first housing 510 and the second housing 520 when the foldable electronic device 1000 is in the flattened state.

[0052] Please refer to Figure 5 and Figure 6 , Figure 5 is Figure 4 a schematic structural diagram of the rotating shaft mechanism 530 in the foldable electronic device 1000 shown, Figure 6 is Figure 5 a schematic structural diagram of the rotating shaft mechanism 530 at another angle.

[0053] The rotating shaft mechanism 530 includes a fixed seat 300, a rotating assembly 200, a door panel assembly 100, and a damping assembly (not shown in the figure). The rotating assembly 200, the door panel assembly 100, and the damping assembly are all installed on the fixed seat 300. Exemplarily, the fixed seat 300 extends in the Y-axis direction. Specifically, the damping assembly is installed inside the fixed seat 300. During the rotation of the foldable electronic device 1000, the damping assembly can provide a damping force to enable the user to experience a better damping feel, and at the same time achieve the hovering of the foldable electronic device 1000 at a preset angle, thereby improving the user experience. It should be noted that the preset angle refers to the included angle between the first housing 510 and the second housing 520 when the foldable electronic device 1000 hovers. Among them, the range of the preset angle is between 0° and 180°. The rotating assembly 200 is slidably and rotatably connected to the fixed seat 300 and is rotatably connected to the damping assembly. The rotating assembly 200 can also be folded or unfolded relative to the fixed seat 300. The door panel assembly 100 is slidably and rotatably connected to the rotating assembly 200 and can be folded or unfolded relative to the fixed seat 300 under the drive of the rotating assembly 200, so as to realize the rotation of the rotating shaft mechanism 530, so that the rotating shaft mechanism 530 can be switched between the folded state and the flattened state.

[0054] It can be understood that when the rotating shaft mechanism 530 is in the folded state, both the rotating assembly 200 and the door panel assembly 100 are in the folded state. When the rotating shaft mechanism 530 is in the flattened state, both the rotating assembly 200 and the door panel assembly 100 are in the flattened state. During the process of the rotating shaft mechanism 530 switching from the folded state to the flattened state, both the rotating assembly 200 and the door panel assembly 100 switch from the folded state to the flattened state. During the process of the rotating shaft mechanism 530 switching from the flattened state to the folded state, both the rotating assembly 200 and the door panel assembly 100 switch from the flattened state to the folded state.

[0055] In this embodiment, there are two rotating assemblies 200. Along the Y-axis direction, the two rotating assemblies 200 are arranged at intervals. The two rotating assemblies 200 are respectively a first rotating assembly 200a and a second rotating assembly 200b. Among them, the first rotating assembly 200a is located on one side of the fixed seat 300 in the positive Y-axis direction, and the second rotating assembly 200b is located on one side of the fixed seat 300 in the negative Y-axis direction. In some other embodiments, the number of the rotating assemblies 200 can also be one, three or more than three, and the embodiments of the present application do not make any restrictions on this.

[0056] It should be noted that the first rotating assembly 200a and the second rotating assembly 200b can have the same or similar structures, or the first rotating assembly 200a and the second rotating assembly 200b can have symmetric or partially symmetric structures, or the first rotating assembly 200a and the second rotating assembly 200b can also have completely different structures. The following will take the first rotating assembly 200a as an example to describe the specific design of the rotating assembly 200 in detail. In this embodiment, both the first rotating assembly 200a and the second rotating assembly 200b can adopt the structure of the first rotating assembly 200a in the following text. Among them, the basic structures of the components in the second rotating assembly 200b, the connection relationships between the components, and the connection relationships between the components and the components outside the assembly can all refer to the relevant designs of the first rotating assembly 200a in the following text. The second rotating assembly 200b and the first rotating assembly 200a can be the same or different in the detailed structures or position arrangements of the components.

[0057] In this embodiment, the door panel assembly 100 is slidably and rotatably connected to both the first rotating assembly 200a and the second rotating assembly 200b. Among them, the part of the door panel assembly 100 in the negative Y-axis direction is slidably and rotatably connected to the first rotating assembly 200a, and the part of the door panel assembly 100 in the positive Y-axis direction is slidably and rotatably connected to the second rotating assembly 200b.

[0058] Please refer to Figure 7 and Figure 8 , Figure 7 which Figure 5 is the exploded structural schematic diagram of the rotating shaft mechanism 530 shown in Figure 8 and Figure 7 is the partial structural schematic diagram of the fixed seat 300 in the rotating shaft mechanism 530 shown in

[0059] The fixed seat 300 is provided with a first rotation groove 310 and a second rotation groove 320. In the X-axis direction, the first rotation groove 310 and the second rotation groove 320 are arranged in opposite directions. Among them, the opening of the first rotation groove 310 is located on the surface of the fixed seat 300 in the positive X-axis direction, and the opening of the second rotation groove 320 is located on the surface of the fixed seat 300 in the negative X-axis direction. The extending directions of the first rotation groove 310 and the second rotation groove 320 are both parallel to the X-axis direction. In this embodiment, there are two first rotation grooves 310 and two second rotation grooves 320. In the Y-axis direction, the two first rotation grooves 310 and the two second rotation grooves 320 are alternately arranged at intervals. In some other embodiments, the number of the first rotation grooves 310 may also be one, three or more than three, and the number of the second rotation grooves 320 may also be one, three or more than three. The embodiments of the present application do not strictly limit this.

[0060] In this embodiment, first slide rails 311 are provided on the groove side walls of the first rotation groove 310. Exemplarily, there are two first slide rails 311, and the two first slide rails 311 are symmetrically arranged on the two opposite groove side walls of the first rotation groove 310. Second slide rails 321 are provided on the groove side walls of the second rotation groove 320. Exemplarily, there are two second slide rails 321, and the two second slide rails 321 are symmetrically arranged on the two opposite groove side walls of the second rotation groove 320.

[0061] In this embodiment, both the first slide rails 311 and the second slide rails 321 are arc-shaped. The first rotation groove 310 and the first slide rails 311 are used to install the first swing arm 230 in the first rotation assembly 200a, and the first swing arm 230 can slide and rotate in the first rotation groove 310. The second rotation groove 320 and the second slide rails 321 are used to install the third swing arm 240 in the first rotation assembly 200a, and the third swing arm 240 can slide and rotate in the second rotation groove 320.

[0062] The fixed seat 300 further includes a first rotation shaft 330 and a second rotation shaft 340. The axial extending directions of the first rotation shaft 330 and the second rotation shaft 340 are both parallel to the Y-axis direction. In the X-axis direction, the first rotation shaft 330 and the second rotation shaft 340 are arranged at intervals. In the Y-axis direction, the first rotation shaft 330 and the first rotation groove 310 are arranged at intervals, and the second rotation shaft 340 and the second rotation groove 320 are arranged at intervals. The first rotation shaft 330 is used for rotatably connecting with the second swing arm in the first rotation assembly 200a, and the second rotation shaft 340 is used for rotatably connecting with the fourth swing arm in the first rotation assembly 200a.

[0063] Please refer to Figure 7 、 Figure 9 and Figure 10 , Figure 9 is Figure 7Partial exploded view of the first rotating assembly 200a in the shown rotating shaft mechanism 530 Figure 10 is Figure 9 Partial exploded view of the shown first rotating assembly 200a at another angle

[0064] The first rotating assembly 200a is slidably and rotatably connected to the fixed seat 300. In this embodiment, the first rotating assembly 200a includes a first connecting block 210, a second connecting block 220, a first swing arm 230, a third swing arm 240, a second swing arm 250, and a fourth swing arm 260. Among them, when the rotating shaft mechanism 530 is in the unfolded state, the first connecting block 210, the first swing arm 230, and the second swing arm 250 are all located on one side in the width direction (the X-axis direction shown in the figure) of the fixed seat 300. Exemplarily, the first swing arm 230 can be the main swing arm of the rotating shaft mechanism 530. In this embodiment, the first swing arm 230 is rotatably connected to the fixed seat 300 and the first connecting block 210. In some other embodiments, the first swing arm 230 can also be a secondary swing arm, and the embodiments of the present application do not strictly limit this.

[0065] In this embodiment, the second swing arm 250 is rotatably connected to the fixed seat 300 and is spaced from the first swing arm 230. Exemplarily, the second swing arm 250 can be the secondary swing arm of the rotating shaft mechanism 530. At this time, the second swing arm 250 is slidably connected to the first connecting block 210. In some other embodiments, the second swing arm 250 can also be the main swing arm of the rotating shaft mechanism 530, and the embodiments of the present application do not strictly limit this.

[0066] When the first connecting block 210 rotates relative to the fixed seat 300, the first swing arm 230 and the second swing arm 250 can rotate relative to the fixed seat 300 under the drive of the first connecting block 210. In this embodiment, there are two first connecting blocks 210, two first swing arms 230, and two second swing arms 250. Along the Y-axis direction, the two first swing arms 230 and the two second swing arms 250 are alternately spaced, and the two first connecting blocks 210 are spaced. Among them, each first connecting block 210 is connected to a first swing arm 230 and a second swing arm 250.

[0067] When the rotating shaft mechanism 530 is in the deployed state, the second connecting block 220, the third swing arm 240, and the fourth swing arm 260 are all located on the other side in the width direction of the fixed seat 300 (the X-axis direction in the figure). Along the X-axis direction, the second connecting block 220 is spaced apart and oppositely arranged relative to the first connecting block 210, the third swing arm 240 is spaced apart and oppositely arranged relative to the first swing arm 230, and the fourth swing arm 260 is spaced apart and oppositely arranged relative to the second swing arm 250. In this embodiment, the third swing arm 240 is rotatably connected to the second connecting block 220, and the fourth swing arm 260 is slidably and rotatably connected to the second connecting block 220. When the second connecting block 220 rotates relative to the fixed seat 300, the third swing arm 240 and the fourth swing arm 260 can rotate relative to the fixed seat 300 under the drive of the second connecting block 220. In this embodiment, there are two second connecting blocks 220, two third swing arms 240, and two fourth swing arms 260. Along the Y-axis direction, the two third swing arms 240 and the two fourth swing arms 260 are alternately spaced apart, and the two second connecting blocks 220 are spaced apart. Among them, each second connecting block 220 is connected to a third swing arm 240 and a fourth swing arm 260.

[0068] Please continue to refer to Figure 9 and Figure 10 In this embodiment, each first connecting block 210 is fixedly connected to the first housing 510. Each first connecting block 210 includes a first main body 10 and a first bushing 20. Among them, the first bushing 20 is fixedly connected to the first main body 10. The axial extension direction of the first bushing 20 is parallel to the Y-axis direction. The first bushing 20 is used for rotatably connecting with the first swing arm 230. The first main body 10 includes a first upper surface 11, a first lower surface 12, a first connecting surface 13, a second connecting surface 14, a first end surface 15, and a second end surface 16. The first upper surface 11, the first lower surface 12, the first connecting surface 13, the second connecting surface 14, the first end surface 15, and the second end surface 16 enclose the outer surface of the first main body 10. Along the thickness direction of the first connecting block 210 (the Z-axis direction in the figure), the first upper surface 11 and the first lower surface 12 are arranged opposite to each other. The first connecting surface 13 and the second connecting surface 14 are both connected between the first upper surface 11 and the first lower surface 12. Along the width direction of the first connecting block 210 (the X-axis direction in the figure), the first connecting surface 13 and the second connecting surface 14 are spaced apart and arranged opposite to each other. The first end surface 15 and the second end surface 16 are both connected between the first connecting surface 13 and the second connecting surface 14. Along the length direction of the first connecting block 210 (the Y-axis direction in the figure), the first end surface 15 and the second end surface 16 are spaced apart and arranged opposite to each other.

[0069] The first body 10 is provided with a first notch 101, a first guide groove 102, a first sliding groove 103 and a first through hole 104. The opening of the first notch 101 is located on the second connection surface 14. The first notch 101 is recessed from the second connection surface 14 towards the first connection surface 13 and penetrates through the first upper surface 11. A first bushing 20 is provided in the first notch 101. In other words, the first bushing 20 is located within the first notch 101.

[0070] In the Y-axis direction, the first guide groove 102 and the first notch 101 are arranged at intervals. Specifically, the opening of the first guide groove 102 is located on the first upper surface 11. The first guide groove 102 is recessed from the first upper surface 11 towards the first lower surface 12 and penetrates through the first connection surface 13 and the first end surface 15. Exemplarily, the first guide groove 102 is an arc-shaped groove. That is to say, the bottom wall surface of the first guide groove 102 is an arc surface. The first guide groove 102 is used for sliding connection with the door panel assembly 100.

[0071] In the Y-axis direction, the first sliding groove 103 is located on the side of the first notch 101 away from the first guide groove 102 and is arranged at intervals from the first notch 101. Specifically, the opening of the first sliding groove 103 is located on the first upper surface 11, and the first sliding groove 103 is recessed from the first upper surface 11 towards the first lower surface 12. Exemplarily, the first sliding groove 103 also penetrates through part of the first connection surface 13. The first sliding groove 103 is used for sliding connection with the second swing arm 250. In some other embodiments, the first sliding groove 103 may not penetrate through the first connection surface 13. In this embodiment, the first through hole 104 is provided on the bottom wall of the first sliding groove 103 and penetrates through the bottom wall of the first sliding groove 103 in the thickness direction of the bottom wall of the first sliding groove 103 (the illustrated Z-axis direction) and communicates with the first sliding groove 103.

[0072] In addition, the first rotating assembly 200a further includes a first pin shaft 270. The first pin shaft 270 is located within the first notch 101 and is installed in the first bushing 20. The two ends of the first pin shaft 270 are respectively connected to two opposite side walls of the first notch 101. Exemplarily, the first pin shaft 270 is a round shaft, and the axis of the first pin shaft 270 is parallel to the Y-axis direction. The first pin shaft 270 is used for connecting the first swing arm 230 and the first connection block 210 so that the first swing arm 230 and the first connection block 210 are rotatably connected. Exemplarily, there are two first pin shafts 270. Each first pin shaft 270 is used for connecting a first swing arm 230 and a first connection block 210.

[0073] In this embodiment, each second connecting block 220 is fixedly connected to the second housing 520. Among them, the structure of the second connecting block 220 is similar to that of the first connecting block 210. Specifically, each second connecting block 220 includes a second main body 30 and a second bushing 40. The second main body 30 includes a second upper surface 31, a second lower surface 32, a third side surface 33, a fourth connecting surface 34, a third end surface 35, and a fourth end surface 36 that enclose the outer surface of the second main body 30. In the thickness direction of the second connecting block 220 (the Z-axis direction shown in the figure), the second upper surface 31 and the second lower surface 32 are arranged back to back. The third side surface 33 and the fourth connecting surface 34 are both connected between the second upper surface 31 and the second lower surface 32. In the width direction of the second connecting block 220 (the X-axis direction shown in the figure), the third side surface 33 and the fourth connecting surface 34 are spaced apart and arranged back to back. The third end surface 35 and the fourth end surface 36 are both connected between the third side surface 33 and the fourth connecting surface 34. In the length direction of the second connecting block 220 (the Y-axis direction shown in the figure), the third end surface 35 and the fourth end surface 36 are spaced apart and arranged back to back.

[0074] The second main body 30 is provided with a second notch 301, a second guide groove 302, a second sliding groove 303, and a second through hole 304. The opening of the second notch 301 is located on the third side surface 33. The second notch 301 is recessed from the fourth connecting surface 34 towards the third side surface 33 and penetrates the second upper surface 31. The second bushing 40 is provided in the second notch 301. In other words, the second bushing 40 is located in the second notch 301.

[0075] In the Y-axis direction, the second guide groove 302 is spaced apart from the second notch 301. Specifically, the opening of the second guide groove 302 is located on the second upper surface 31. The second guide groove 302 is recessed from the second upper surface 31 towards the second lower surface 32 and penetrates the second lower surface 32 and part of the third end surface 35. Exemplarily, the second guide groove 302 is an arc-shaped groove. That is to say, the bottom wall surface of the second guide groove 302 is an arc-shaped surface. The second guide groove 302 is used for sliding connection with the door panel assembly 100.

[0076] In the Y-axis direction, the second chute 303 is located on the side of the second notch 301 away from the second guide groove 302, and is spaced from the second notch 301. Specifically, the opening of the second chute 303 is located on the second upper surface 31, and the second chute 303 is recessed from the second upper surface 31 towards the second lower surface 32. Exemplarily, the second chute 303 also penetrates through a part of the third side surface 33. The second chute 303 is used for sliding connection with the fourth swing arm 260. In some other embodiments, the second chute 303 may not penetrate through the third side surface 33. In this embodiment, the second through hole 304 is provided on the bottom wall of the second chute 303, and penetrates through the bottom wall of the second chute 303 in the thickness direction of the bottom wall of the second chute 303 (the illustrated Z-axis direction), and communicates with the second chute 303.

[0077] In addition, the first rotating assembly 200a further includes a second pin shaft 280. The second pin shaft 280 is located in the second notch 301 and is installed in the second bushing 40. The two ends of the second pin shaft 280 are respectively connected to two opposite side walls of the second notch 301. Exemplarily, the second pin shaft 280 is a round shaft, and the axis of the second pin shaft 280 is parallel to the Y-axis direction. The second pin shaft 280 is used for connecting the third swing arm 240 and the second connection block 220, so that the third swing arm 240 and the second connection block 220 are rotationally connected. Exemplarily, there are two second pin shafts 280. Each second pin shaft 280 is used for connecting a third swing arm 240 and a second connection block 220.

[0078] In this embodiment, the first swing arm 230 includes a first rotating portion 231, a first sliding portion 232, and a first connecting portion 233. The first rotating portion 231 and the first sliding portion 232 are both fixedly connected to the first connecting portion 233. In the X-axis direction, the first rotating portion 231 and the first sliding portion 232 are respectively located on opposite sides of the first connecting portion 233. Exemplarily, the first rotating portion 231, the first sliding portion 232, and the first connecting portion 233 can be integrally formed.

[0079] In this embodiment, the first rotating portion 231 is installed in the first notch 101 of the first connection block 210 and is rotationally connected to the first connection block 210. Among them, the structure of the first rotating portion 231 is adapted to the structure of the first notch 101. The first rotating portion 231 further includes two first sub-rotating portions 2311, and the two first sub-rotating portions 2311 are spaced in the Y-axis direction. Specifically, the two first sub-rotating portions 2311 can be sleeved on the first pin shaft 270 and can rotate relative to the first pin shaft 270 to realize the rotational connection between the first rotating portion 231 and the first pin shaft 270, thereby realizing the rotational connection between the first swing arm 230 and the first connection block 210. Among them, in the Y-axis direction, the two first sub-rotating portions 2311 are respectively located on opposite sides of the first bushing 20 of the first connection block 210.

[0080] The first sliding part 232 is installed in the first rotating groove 310 and can slide and rotate along the first sliding rail 311 in the first rotating groove 310. Among them, the structure of the first sliding part 232 is adapted to the structure of the first rotating groove 310. Specifically, the first sliding part 232 is provided with a first sliding groove 2321. Exemplarily, there are two first sliding grooves 2321. In the Y-axis direction, the two first sliding grooves 2321 are respectively located on opposite sides of the first sliding part 232. Among them, the structure of the first sliding groove 2321 is adapted to the structure of the first sliding rail 311 of the first rotating groove 310. When the first sliding part 232 is installed in the first rotating groove 310, each first sliding rail 311 in the first rotating groove 310 is located in a first sliding groove 2321 of the first sliding part 232, so that the first sliding part 232 can slide and rotate along the first sliding rail 311 in the first rotating groove 310.

[0081] In this embodiment, the first connecting part 233 is provided with a first avoiding hole 2331. The first avoiding hole 2331 penetrates the first connecting part 233 in the thickness direction of the first connecting part 233. In addition, the first rotating assembly 200a further includes a first connecting shaft 2001. The first connecting shaft 2001 is installed in the first avoiding hole 2331 of the first connecting part 233, and both ends of the first connecting shaft 2001 are respectively connected to two opposite side walls of the first avoiding hole 2331. Among them, the first connecting shaft 2001 is a circular shaft, and the axis of the first connecting shaft 2001 is parallel to the Y-axis direction. In this embodiment, there are two first connecting shafts 2001. Each first connecting shaft 2001 is installed in the first avoiding hole 2331 of a first swing arm 230. Each first connecting shaft 2001 is used to connect a first swing arm 230 and the door panel assembly 100.

[0082] The third swing arm 240 has the same structure as the first swing arm 230. The third swing arm 240 includes a second rotating part 241, a second connecting part 242 and a second sliding part 243. The second rotating part 241 and the second sliding part 243 are both fixedly connected to the second connecting part 242. In the X-axis direction, the second rotating part 241 and the second sliding part 243 are respectively located on opposite sides of the second connecting part 242. Exemplarily, the second rotating part 241, the second sliding part 243 and the second connecting part 242 can be integrally formed.

[0083] In this embodiment, the second rotating part 241 is installed in the second notch 301 of the second connecting block 220 and is rotatably connected to the second connecting block 220. Among them, the structure of the second rotating part 241 is adapted to the structure of the second notch 301. The second rotating part 241 includes two second sub-rotating parts 2411, and the two second sub-rotating parts 2411 are spaced along the Y-axis direction. Specifically, the two second sub-rotating parts 2411 can be sleeved on the second pin shaft 280 and can rotate relative to the second pin shaft 280 to realize the rotational connection between the second rotating part 241 and the second pin shaft 280, thereby realizing the rotational connection between the third swing arm 240 and the second connecting block 220. Among them, along the Y-axis direction, the two second sub-rotating parts 2411 are respectively located on the opposite sides of the second bushing 40 of the second connecting block 220.

[0084] In this embodiment, the second connecting part 242 is provided with a second avoidance hole 2421. The second avoidance hole 2421 penetrates the second connecting part 242 along the thickness direction of the second connecting part 242. In addition, the first rotating assembly 200a further includes a second connecting shaft 2002. The second connecting shaft 2002 is installed in the second avoidance hole 2421 of the second connecting part 242, and the two ends of the second connecting shaft 2002 are respectively connected to two opposite hole wall surfaces of the second avoidance hole 2421. Among them, the second connecting shaft 2002 is a circular shaft, and the axis of the second connecting shaft 2002 is parallel to the Y-axis direction. In this embodiment, there are two second connecting shafts 2002. Each second connecting shaft 2002 is installed in the second avoidance hole 2421 of a third swing arm 240. Each second connecting shaft 2002 is used to connect a third swing arm 240 and the door panel assembly 100.

[0085] The second sliding part 243 is installed in the second rotating groove 320 and can slide and rotate along the second sliding rail 321 in the second rotating groove 320. Among them, the structure of the second sliding part 243 is adapted to the structure of the second rotating groove 320. Specifically, the second sliding part 243 is provided with second sliding grooves 2431. Exemplarily, there are two second sliding grooves 2431. Along the Y-axis direction, the two second sliding grooves 2431 are respectively located on the opposite sides of the second sliding part 243. Among them, the structure of the second sliding groove 2431 is adapted to the structure of the second sliding rail 321 of the second rotating groove 320. When the second sliding part 243 is installed in the second rotating groove 320, each second sliding rail 321 in the second rotating groove 320 is located in a second sliding groove 2431 of the second sliding part 243, so that the second sliding part 243 can slide and rotate along the second sliding rail 321 in the second rotating groove 320.

[0086] Please continue to refer to Figure 9 and Figure 10。The second swing arm 250 includes a first abutting surface 250a facing away from the fixed seat 300. The first abutting surface 250a is used to abut against the door panel assembly 100. The second swing arm 250 further includes a third sliding portion 251, a third connecting portion 252, and a third rotating portion 253. Both the third sliding portion 251 and the third rotating portion 253 are fixedly connected to the third connecting portion 252. In the X-axis direction, the third sliding portion 251 and the third rotating portion 253 are respectively located on opposite sides of the third connecting portion 252. Exemplarily, the third sliding portion 251, the third connecting portion 252, and the third rotating portion 253 can be integrally formed.

[0087] In this embodiment, the third sliding portion 251 is generally in the shape of a flat plate. The structure of the third sliding portion 251 is adapted to the structure of the first sliding groove 103 of the first connecting block 210. Specifically, the third sliding portion 251 is installed in the first sliding groove 103 of the first connecting block 210 and can slide relative to the first connecting block 210 within the first sliding groove 103 to achieve the sliding connection between the second swing arm 250 and the first connecting block 210. In addition, the first abutting surface 250a is provided on the third sliding portion 251. Specifically, the first abutting surface 250a is located on the side of the third sliding portion 251 facing away from the fixed seat 300.

[0088] The third rotating portion 253 includes two third sub-rotating portions 2531, and the two third sub-rotating portions 2531 are spaced apart in the Y-axis direction. Specifically, the two third sub-rotating portions 2531 can be sleeved on the first rotating shaft 330 of the fixed seat 300 and can rotate relative to the first rotating shaft 330 to achieve the rotational connection between the third rotating portion 253 and the first rotating shaft 330, thereby realizing the rotational connection between the second swing arm 250 and the fixed seat 300.

[0089] In this embodiment, the fourth swing arm 260 has the same structure as the second swing arm 250. The fourth swing arm 260 includes a third abutting surface 260a facing away from the fixed seat 300. The third abutting surface 260a is used to abut against the door panel assembly 100. The fourth swing arm 260 further includes a fourth sliding portion 261, a fourth connecting portion 262, and a fourth rotating portion 263. Both the fourth sliding portion 261 and the fourth rotating portion 263 are fixedly connected to the fourth connecting portion 262. In the X-axis direction, the fourth sliding portion 261 and the fourth rotating portion 263 are respectively located on opposite sides of the fourth connecting portion 262. Exemplarily, the fourth sliding portion 261, the fourth connecting portion 262, and the fourth rotating portion 263 can be integrally formed.

[0090] In this embodiment, the fourth sliding portion 261 is roughly in the shape of a flat plate. The structure of the fourth sliding portion 261 is compatible with the structure of the second slide groove 303 of the second connecting block 220. Specifically, the fourth sliding portion 261 is installed in the second slide groove 303 of the second connecting block 220, and can slide relative to the second connecting block 220 in the second slide groove 303 to achieve the sliding connection between the fourth swing arm 260 and the second connecting block 220. In addition, the fourth sliding portion 261 is provided with a third abutting surface 260a. Specifically, the third abutting surface 260a is located on the side of the fourth sliding portion 261 away from the fixing seat 300.

[0091] The fourth rotating part 263 includes two fourth sub-rotating parts 2631, and the two fourth sub-rotating parts 2631 are arranged at intervals along the Y-axis direction. Specifically, the two fourth sub-rotating parts 2631 can be sleeved on the second rotating shaft 340 of the fixing seat 300, and can rotate relative to the second rotating shaft 340 to achieve the rotational connection between the fourth rotating part 263 and the second rotating shaft 340, thereby achieving the rotational connection between the fourth swing arm 260 and the fixing seat 300.

[0092] In this embodiment, when the first housing 510 rotates relative to the fixing seat 300, the first connecting block 210 can be driven by the first housing 510 to rotate relative to the fixing seat 300, thereby driving the first swing arm 230 to rotate, and causing the first rotating shaft 330 to rotate in the first sleeve 20. Among them, the first rotating portion 231 of the first swing arm 230 rotates in the first rotating groove 310. At the same time, the first connecting block 210 also drives the second swing arm 250 to rotate, and causes the second swing arm 250 to slide in the first sliding groove 103. Among them, the third sliding portion 251 of the second swing arm 250 slides in the first sliding groove 103.

[0093] When the second housing 520 rotates relative to the fixing seat 300, the second connecting block 220 can rotate relative to the fixing seat 300 driven by the second housing 520. The second connecting block 220 can drive the third swing arm 240 to rotate, and make the second rotating shaft 340 rotate in the second sleeve 40. Among them, the second rotating portion 241 of the third swing arm 240 rotates in the second rotating groove 320. At the same time, the second connecting block 220 also drives the fourth swing arm 260 to rotate, and makes the fourth swing arm 260 slide in the second slide groove 303. Among them, the fourth sliding portion 261 of the fourth swing arm 260 slides in the second slide groove 303.

[0094] In this embodiment, the rotation direction of the second connecting block 220 is opposite to that of the first connecting block 210, the rotation direction of the third swing arm 240 is opposite to that of the first swing arm 230, and the sliding direction of the fourth swing arm 260 is opposite to that of the second swing arm 250. For example, when the rotating shaft mechanism 530 switches from the flattened state to the folded state, the first connecting block 210, the first swing arm 230, and the second swing arm 250 rotate counterclockwise, and the second connecting block 220, the third swing arm 240, and the fourth swing arm 260 rotate clockwise. When the rotating shaft mechanism 530 switches from the folded state to the flattened state, the first connecting block 210, the first swing arm 230, and the second swing arm 250 rotate clockwise, and the second connecting block 220, the third swing arm 240, and the fourth swing arm 260 rotate counterclockwise.

[0095] It can be understood that by providing the first connecting block 210 and the second connecting block 220, and fixedly connecting the first connecting block 210 to the first housing 510 and the second connecting block 220 to the second housing 520, the connection strength between the first connecting block 210 and the first housing 510, and between the second connecting block 220 and the second housing 520 can be increased, and the rotation stability of the foldable electronic device 1000500 can be improved. By providing the first swing arm 230 and the third swing arm 240, the rotation of the first connecting block 210 and the second connecting block 220 relative to the fixed seat 300 can be realized. Moreover, by providing the second swing arm 250, when the first connecting block 210 rotates relative to the fixed seat 300, the first connecting block 210 can drive the second swing arm 250 and the first swing arm 230 to rotate together, so that the rotation of the first connecting block 210 relative to the fixed seat 300 can be realized, and further the rotation stability of the first connecting block 210 can be increased. By providing the fourth swing arm 260, when the second connecting block 220 rotates relative to the fixed base, the second connecting block 220 can drive the fourth swing arm 260 and the third swing arm 240 to rotate together, so that the rotation of the second connecting block 220 relative to the fixed seat 300 can be realized, and further the rotation stability of the second connecting block 220 can be increased.

[0096] Please refer to Figure 11 、 Figure 12 and Figure 13 , Figure 11 is Figure 7 the schematic structural diagram of the door panel assembly 100 in the first rotating assembly 200a shown in Figure 12 is Figure 11 the schematic structural diagram of the door panel assembly 100 shown in another angle, Figure 13 is Figure 5 the schematic cross-sectional diagram of the rotating shaft mechanism 530 in the first embodiment after being cut along the A-A line. Herein, "being cut along the A-A line" means being cut along the plane where the A-A line is located, and the same understanding can be made for similar descriptions hereinafter.

[0097] In this embodiment, the door panel assembly 100 includes a first door panel 50 and a second door panel 60. Among them, the first door panel 50 is located on one side of the fixed seat 300 and is connected to the first swing arm 230. Exemplarily, the first door panel 50 is located on one side of the fixed seat 300 in the width direction. The first door panel 50 is slidably and rotatably connected to the first connection block 210 of each rotating assembly 200 and is slidably and rotatably connected to the first swing arm 230 of each rotating assembly 200. The second door panel 60 is located on the other side of the fixed seat 300 and is connected to the third swing arm 240. Exemplarily, the second door panel 60 is located on the other side of the fixed seat 300 in the width direction. The second door panel 60 is slidably and rotatably connected to the second connection block 220 of each rotating assembly 200 and is slidably and rotatably connected to the third swing arm 240 of each rotating assembly 200.

[0098] Specifically, the first door panel 50 includes a first support plate 51, a first convex block 52, a first guiding slider 53, and a first stopping block 54. Among them, the first support plate 51 is generally in the shape of a long strip plate and extends along the Y-axis direction. The first support plate 51 includes a first top surface 511, a first bottom surface 512, a first side surface 513, and a third side surface 514. Along the thickness direction of the first support plate 51 (the Z-axis direction shown in the figure), the first top surface 511 and the first bottom surface 512 are arranged opposite to each other. Along the width direction of the first support plate 51 (the X-axis direction shown in the figure), the first side surface 513 and the third side surface 514 are arranged opposite to each other.

[0099] The first convex block 52, the first guiding slider 53, and the first stopping block 54 are all fixedly connected to the first bottom surface 512 of the first support plate 51 and are spaced from each other. Among them, the first stopping block 54 includes a second abutting surface 541 facing the fixed seat 300. Along the sliding direction of the second swing arm 250 relative to the first door panel 50, the second abutting surface 541 is arranged opposite to the first abutting surface 250a of the second swing arm 250. The second abutting surface 541 can abut against the first abutting surface 250a of the second swing arm 250.

[0100] In this embodiment, the first door panel 50 is further provided with a first avoiding groove 515. Specifically, the opening of the first avoiding groove 515 is located on the first top surface 511 of the first support plate 51. The first avoiding groove 515 is recessed from the first top surface 511 towards the first bottom surface 512 and penetrates at least part of the first side surface 513.

[0101] In this embodiment, along the length direction of the rotating shaft mechanism 530, the first avoidance groove 515 is located between the first swing arm 230 and the second swing arm 250. Along the length direction of the rotating shaft mechanism 530, at least part of the first avoidance groove 515 is arranged in a staggered manner with the first swing arm 230. Among them, along the length direction of the rotating shaft mechanism 530, the first avoidance groove 515 is arranged at an interval from the first swing arm 230. In other words, along the length direction of the rotating shaft mechanism 530, the first avoidance groove 515 is completely arranged in a staggered manner with the first swing arm 230. At least part of the first avoidance groove 515 can also be arranged in a staggered manner with the second swing arm 250. Among them, along the length direction of the rotating shaft mechanism 530, the first avoidance groove 515 is arranged at an interval from the second swing arm 250. In other words, the first avoidance groove 515 can be completely arranged in a staggered manner with the second swing arm 250.

[0102] In addition, along the length direction of the rotating shaft mechanism 530, at least part of the first avoidance groove 515 is also arranged opposite to the damping member of the rotating shaft mechanism 530. It should be noted that at least part of the first avoidance groove 515 being arranged opposite to the damping member of the rotating shaft mechanism 530 means that the orthographic projection of the first avoidance groove 515 on the damping member covers at least part of the damping member.

[0103] In this embodiment, there are multiple first avoidance grooves 515, and along the length direction of the first support plate 51 (the Y-axis direction shown in the figure), the multiple first avoidance grooves 515 are arranged at intervals. Exemplarily, the depth of each first avoidance groove 515 is 0.5 mm, the width is 10 mm, and the length is 100 mm.

[0104] Specifically, each first avoidance groove 515 includes a first groove bottom wall surface 5151. The first groove bottom wall surface 5151 is fixedly connected between the first top surface 511 and the first side surface 513. Among them, in the direction from the end of the first groove bottom wall surface 5151 close to the first top surface 511 to the end of the first groove bottom wall surface 5151 far from the first top surface 511, the distance between the first groove bottom wall surface 5151 and the first top surface 511 gradually increases. Exemplarily, the first groove bottom wall surface 5151 is an arc surface.

[0105] In addition, the first avoidance groove 515 can also include a first transition surface 5152 and a second transition surface 5153. Among them, the first transition surface 5152 is fixedly connected between the first groove bottom wall surface 5151 and the first top surface 511. The second transition surface 5153 is fixedly connected between the first groove bottom wall surface 5151 and the first side surface 513.

[0106] In this embodiment, the structure of the second door panel 60 is the same as that of the first door panel 50. The second door panel 60 includes a second support plate 61, a second bump 62, a second guiding slider 63, and a second stopping block 64. Among them, the second support plate 61 is generally in the shape of a long strip plate and extends along the Y-axis direction. The second support plate 61 includes a second top surface 611, a second bottom surface 612, a second side surface 613, and a fourth side surface 614. Along the thickness direction of the second support plate 61 (the Z-axis direction shown in the figure), the second top surface 611 and the second bottom surface 612 are arranged in opposite directions. Both the second side surface 613 and the fourth side surface 614 are fixedly connected between the second top surface 611 and the second bottom surface 612. Along the width direction of the second support plate 61 (the X-axis direction shown in the figure), the second side surface 613 and the fourth side surface 614 are arranged in opposite directions.

[0107] The second bump 62, the second guiding slider 63, and the second stopping block 64 are all fixedly connected to the second bottom surface 612 of the second support plate 61 and are spaced from each other. Among them, the second stopping block 64 includes a fourth abutting surface 641 facing the fixed seat 300. Along the width direction of the second door panel 60, the fourth abutting surface 641 is arranged opposite to the third abutting surface 260a of the fourth swing arm 260.

[0108] The fourth abutting surface 641 can abut against the third abutting surface 260a.

[0109] The second door panel 60 is also provided with a second avoiding groove 615. Specifically, the opening of the second avoiding groove 615 is located on the second top surface 611 of the second support plate 61. The second avoiding groove 615 is recessed from the second top surface 611 towards the second bottom surface 612 and penetrates through a part of the second side surface 613. Exemplarily, there are multiple second avoiding grooves 615, and along the length direction of the second support plate 61 (the Y-axis direction shown in the figure), the multiple second avoiding grooves 615 are spaced apart. Exemplarily, the depth of each first avoiding groove 515 is 0.5 mm, the width is 10 mm, and the length is 100 mm.

[0110] In this embodiment, the structure of the second avoiding groove 615 is the same as that of the first avoiding groove 515. Specifically, each second avoiding groove 615 includes a second groove bottom wall surface 6151, a fourth transition surface 6152, and a fifth transition surface 6153. The positional relationship among the second groove bottom wall surface 6151, the fourth transition surface 6152, and the fifth transition surface 6153 in the second door panel 60 can refer to the relevant descriptions of the first groove bottom wall surface 5151, the first transition surface 5152, and the second transition surface 5153 in the above-mentioned first avoiding groove 515, and will not be elaborated here.

[0111] When the rotating shaft mechanism 530 is in the flattened state, along the X-axis direction, the first door panel 50 and the second door panel 60 are respectively disposed on opposite sides of the fixed seat 300, the first swing arm 230 and the third swing arm 240 are respectively located on opposite sides of the fixed seat 300, and the second swing arm 250 and the fourth swing arm 260 are respectively located on opposite sides of the fixed seat 300. In the first door panel 50, along the Y-axis direction, each first avoidance groove 515 is located between a first swing arm 230 and a second swing arm 250. The first convex block 52 is installed in the first guide groove 102 of the first connection block 210, and can slide and rotate relative to the first connection block 210 within the first guide groove 102, so as to realize the sliding and rotating connection between the first door panel 50 and the first connection block 210, thereby improving the assembly stability between the first door panel 50 and the rotating assembly 200. The first convex block 52 is installed in the first avoidance hole 2331 of the first swing arm 230, and is sleeved on the first connection shaft 2001, and can rotate relative to the first connection shaft 2001, so as to realize the rotating connection between the first door panel 50 and the first swing arm 230. The first stop block 54 is installed in the first through hole 104 of the first connection block 210, and can slide and rotate relative to the first connection block 210 within the first through hole 104.

[0112] When the first housing 510 drives the first connection block 210 to rotate, the first swing arm 230 rotates relative to the fixed seat 300 driven by the first connection block 210, thereby driving the first door panel 50 to rotate relative to the fixed seat 300, and causing the first convex block 52 to slide within the corresponding first guide groove 102, and further causing the first door panel 50 to slide relative to the first connection block 210 and the second swing arm 250. Under this setting, the first door panel 50 realizes relative rotation with the fixed seat 300 through the first rotating assembly 200a. In other words, the first swing arm 230 can function as a pressing plate swing arm in the first door panel 50. That is to say, the rotating shaft mechanism 530 provided in the present application can omit the pressing plate swing arm, simplify the overall structure of the rotating shaft mechanism 530, and thus is beneficial to realizing the lightweight design of the foldable electronic device 1000.

[0113] In the second door panel 60, along the Y-axis direction, each second avoidance groove 615 is located between a third swing arm 240 and a fourth swing arm 260. The second convex block 62 is installed in the second guide groove 302 of the second connection block 220, and can slide and rotate relative to the second connection block 220 within the second guide groove 302, so as to realize the sliding and rotational connection between the second door panel 60 and the second connection block 220, thereby improving the assembly stability between the second door panel 60 and the rotating assembly 200. The second convex block 62 is installed in the second avoidance hole 2421 of the third swing arm 240, and is sleeved on the second connecting shaft 2002, and can rotate relative to the second connecting shaft 2002, so as to realize the rotational connection between the second door panel 60 and the third swing arm 240. The second stop block 64 is installed in the second through hole 304 of the second connection block 220, and can slide and rotate relative to the second connection block 220 within the second through hole 304.

[0114] When the second housing 520 drives the second connection block 220 to rotate, the third swing arm 240 rotates relative to the fixed seat 300 under the drive of the second connection block 220, thereby driving the second door panel 60 to rotate relative to the fixed seat 300, and causing the second convex block 62 to slide within the corresponding second guide groove 302, and further causing the second door panel 60 to slide relative to the second connection block 220 and the fourth swing arm 260. In this setting, the second door panel 60 realizes relative rotation with the fixed seat 300 through the first rotating assembly 200a. In other words, the third swing arm 240 can function as a pressing plate swing arm in the second door panel 60. That is to say, the rotating shaft mechanism 530 provided in this application can omit the pressing plate swing arm, simplify the overall structure of the rotating shaft mechanism 530, thereby facilitating the lightweight design of the foldable electronic device 1000.

[0115] In addition, the first door panel 50 and the second door panel 60 are both disposed opposite to the display screen 400. That is, the orthographic projection of the display screen 400 on the first door panel 50 and the second door panel 60 completely covers the first door panel 50 and the second door panel 60, or partially covers the first door panel 50 and the second door panel 60. The first door panel 50 and the second door panel 60 jointly support the display screen 400, thereby increasing the connection stability of the display screen 400 to ensure good display of the display screen 400.

[0116] Please refer to Figure 14 and Figure 15 , Figure 14 is Figure 13 the schematic cross-sectional structure diagram of the rotating shaft mechanism 530 shown in the folded state, Figure 15 is Figure 14 the schematic cross-sectional structure diagram of the rotating shaft mechanism 530 and a part of the display screen 400 shown.

[0117] When the rotating shaft mechanism 530 is in the folded state, both the first rotating component 200a and the door panel component 100 are in the folded state. Among them, the first connecting block 210 and the second connecting block 220 are folded relative to each other, the first swing arm 230 and the third swing arm 240 are folded relative to each other, the second swing arm 250 and the fourth swing arm 260 are folded relative to each other, and the first door panel 50 and the second door panel 60 are folded relative to each other.

[0118] In this embodiment, when the rotating shaft mechanism 530 is in the folded state, the foldable electronic device 1000 as a whole is also in the folded state. At this time, the foldable part 430 of the display screen 400 is located inside the rotating shaft mechanism 530. Specifically, when the rotating shaft mechanism 530 is in the folded state, a receiving cavity 531 is formed inside the rotating shaft mechanism 530. Exemplarily, the receiving cavity 531 is generally in the shape of a "water droplet". The receiving cavity 531 communicates with both the first avoidance groove 515 and the second avoidance groove 615. At this time, the foldable part 430 of the display screen 400 is located inside the receiving cavity 531, and both the first avoidance groove 515 and the second avoidance groove 615 avoid the foldable part 430 of the display screen 400. It can be understood that the receiving cavity 531, the first avoidance groove 515, and the second avoidance groove 615 of the rotating shaft mechanism 530 can avoid the R angle formed when the foldable part 430 of the display screen 400 is bent, so that the foldable part 430 will not be bent at a large angle, avoiding bad phenomena such as creases on the display screen 400, and helping to extend the service life of the display screen 400.

[0119] Please refer to Figure 16 and Figure 17 , Figure 16 is Figure 6 the schematic cross-sectional structure diagram of the rotating shaft mechanism 530 shown in the cross-section along B-B in the folded state, Figure 17 is Figure 1 the simulation schematic diagram of the edge drop of the foldable electronic device 1000 shown.

[0120] When the foldable electronic device 1000 in the folded state undergoes an edge drop, the impact force received by the foldable electronic device 1000 is transmitted to the door panel component 100 of the rotating shaft structure through the first housing 510 and the second housing 520, and is transmitted to the rotating component 200 through the door panel component 100. Specifically, the impact force is transmitted to the first door panel 50 through the first housing 510, and is transmitted to the first connecting block 210 and the second swing arm 250 through the first door panel 50. At this time, the first stop block 54 on the first door panel 50 slides relative to the first connecting block 210 in the first through hole 104 in the direction of the second swing arm 250. The second abutting surface 541 of the first door panel 50 abuts against the first abutting surface 250a of the second swing arm 250, thereby preventing the second swing arm 250 from sliding relative to the first connecting block 210 in the first sliding groove 103.

[0121] Meanwhile, the impact force is also transmitted to the second door panel 60 through the second housing 520, and then transmitted to the second connecting block 220 and the fourth swing arm 260 through the second door panel 60. At this time, the second stop block 64 on the second door panel 60 slides relative to the second connecting block 220 in the second through hole 304 in the direction of the fourth swing arm 260. The fourth abutting surface 641 of the second door panel 60 abuts against the third abutting surface 260a of the fourth swing arm 260, thereby preventing the fourth swing arm 260 from sliding relative to the second connecting block 220 in the second chute 303.

[0122] In this setting, when the foldable electronic device 1000 in the folded state experiences a corner drop, the drop intrusion amounts of the second swing arm 250 and the fourth swing arm 260 in the corner drop process in the rotating shaft mechanism 530 can be reduced, so that the deformation amounts of the positions of the second swing arm 250 and the fourth swing arm 260 in the rotating shaft mechanism 530 during the corner drop process are small, which is beneficial to enhancing the stiffness of the rotating shaft mechanism 530, improving the reliability of the rotating shaft mechanism 530, and further helping to increase the supporting force of the rotating shaft mechanism 530 on the display screen 400 during the corner drop process, so as to improve the anti-drop ability of the display screen 400 of the foldable electronic device 1000 and ensure good overall use reliability of the foldable electronic device 1000.

[0123] In addition, when the foldable electronic device 1000 in the folded state experiences a corner drop, such as Figure 17As shown, stress is generated in the foldable part 430 of the display screen 400. In this embodiment, by providing a first relief groove 515 on the first door panel 50 and a second relief groove 615 on the second door panel 60, and making the first relief groove 515 and the second relief groove 615 communicate with the receiving cavity 531, the accommodation space for the foldable part 430 of the display screen 400 inside the rotating shaft mechanism 530 can be increased. On the one hand, it can reduce the extrusion of the foldable part 430 of the display screen 400 by the rotating shaft mechanism 530 during the edge drop process, preventing the display screen 400 from cracking, thereby helping to improve the anti-drop reliability of the display screen 400, and further facilitating the improvement of the usage reliability of the foldable electronic device 1000. On the other hand, the stress generated in the foldable part 430 of the display screen 400 during the edge drop process can be released through the first relief groove 515 and the second relief groove 615, preventing the display screen 400 from cracking due to excessive stress concentration during the edge drop process, thereby helping to improve the anti-drop reliability of the display screen 400, and further facilitating the improvement of the usage reliability of the foldable electronic device 1000 and the extension of the service life of the foldable electronic device 1000. In addition, by setting the first groove bottom wall surface 5151, the first transition surface 5152, and the second transition surface 5153 of the first relief groove 515, and the second groove bottom wall surface 6151, the fourth transition surface 6152, and the fifth transition surface 6153 of the second relief groove 615 as arc surfaces, it is possible to prevent the first door panel 50 and the second door panel 60 from scratching the foldable part 430 of the display screen 400 during the edge drop process, thereby helping to extend the service life of the display screen 400.

[0124] Please refer to Figure 18 and Figure 19 , Figure 18 is Figure 5 the schematic cross-sectional structure diagram of the rotating shaft mechanism 530 shown in the second embodiment after being cut along A-A, Figure 19 is Figure 18 the schematic cross-sectional structure diagram of the rotating shaft mechanism 530 in the folded state.

[0125] The difference between the rotating shaft mechanism 530 shown in this embodiment and the rotating shaft mechanism 530 shown in the above first embodiment is that the first groove bottom wall surface 5151 of the first relief groove 515 in the first door panel 50 is an inclined surface, and the second groove bottom wall surface 6151 of the second relief groove 615 in the second door panel 60 is an inclined surface. With this setting, the relief space for the foldable part 430 of the display screen 400 in the first relief groove 515 and the second relief groove 615 can be further increased, avoiding the extrusion of the foldable part 430 of the display screen 400 by the rotating shaft mechanism 530 during the edge drop process, thereby helping to extend the service life of the display screen 400.

[0126] Please refer to Figure 20 and Figure 21 ,Figure 20 Yes Figure 5 It is a schematic cross-sectional structure diagram of the shown rotating shaft mechanism 530 after being cut along A-A in the third embodiment. Figure 21 Yes Figure 20 It is a schematic cross-sectional structure diagram of the shown rotating shaft mechanism 530 in the folded state.

[0127] The rotating shaft mechanism 530 shown in this embodiment is different from the rotating shaft mechanism 530 shown in the above second embodiment. In the first door panel 50, the first groove bottom wall surface 5151 includes a first sub-surface 5151a and a second sub-surface 5151b. Among them, the first sub-surface 5151a is fixedly connected to the first top surface 511 and is spaced from the first side surface 513. The second sub-surface 5151b is located on the side of the first sub-surface 5151a close to the first side surface 513, and is fixedly connected between the first sub-surface 5151a and the first side surface 513 and intersects both the first sub-surface 5151a and the first side surface 513. In addition, the first groove bottom wall surface 5151 further includes a third transition surface 5151c. The third transition surface 5151c is fixedly connected between the first sub-surface 5151a and the second sub-surface 5151b. With this setting, it is possible to prevent the first door panel 50 and the second door panel 60 from scratching the foldable part 430 of the display screen 400 during the edge drop process, thereby helping to extend the service life of the display screen 400.

[0128] In this embodiment, the structure of the second avoidance groove 615 is the same as that of the first avoidance groove 515. Specifically, in the second door panel 60, the second groove bottom wall surface 6151 further includes a third sub-surface 6151a, a fourth sub-surface 6151b, and a fourth transition surface 6151c. The positional relationships of the third sub-surface 6151a, the fourth sub-surface 6151b, and the fourth transition surface 6151c in the second door panel 60 can refer to the relevant descriptions of the first sub-surface 5151a, the second sub-surface 5151b, and the third transition surface 5155 in the above first avoidance groove 515, and will not be elaborated here.

[0129] The above are only some embodiments and implementation manners of the present application. The protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application, and all should be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A hinge mechanism for use in a foldable electronic device, characterized in that: It includes a fixed seat, a first swing arm and a first door panel, the first swing arm is rotatably connected to the fixed seat, the first door panel is located on one side of the fixed seat and is connected to the first swing arm, the first door panel includes a first top surface and a first side surface, the first side surface is fixedly connected to the first top surface and is arranged toward the fixed seat, the first door panel is provided with a first avoidance groove, the opening of the first avoidance groove is located on the first top surface, the first avoidance groove runs through the first side surface, and along the length direction of the rotating shaft mechanism, at least part of the first avoidance groove is staggered with the first swing arm.

2. The rotating shaft mechanism according to claim 1, characterized in that: Along the length direction of the rotating shaft mechanism, the first avoidance groove and the first swing arm are arranged at a distance.

3. The rotating shaft mechanism according to claim 1 or 2, characterized in that: The rotating shaft mechanism further includes a damping member, which is mounted on the fixing seat. Along the length direction of the rotating shaft mechanism, the damping member is arranged opposite to at least a portion of the first avoidance groove.

4. The rotating shaft mechanism according to claim 1 or 2, characterized in that: The first avoidance groove includes a first groove bottom wall, which is connected between the first top surface and the first side surface. The distance between the first groove bottom wall and the first top surface gradually increases from an end of the first groove bottom wall close to the first top surface to an end of the first groove bottom wall away from the first top surface.

5. The rotating shaft mechanism according to claim 3, characterized in that: The first avoidance groove includes a first groove bottom wall, which is connected between the first top surface and the first side surface. The distance between the first groove bottom wall and the first top surface gradually increases from an end of the first groove bottom wall close to the first top surface to an end of the first groove bottom wall away from the first top surface.

6. The rotating shaft mechanism according to claim 4, characterized in that: The first avoidance groove further includes a first transition surface and a second transition surface, wherein the first transition surface is connected between the first groove bottom wall surface and the first top surface, and the second transition surface is connected between the first groove bottom wall surface and the first side surface.

7. The rotating shaft mechanism according to claim 5, characterized in that: The first avoidance groove further includes a first transition surface and a second transition surface, wherein the first transition surface is connected between the first groove bottom wall surface and the first top surface, and the second transition surface is connected between the first groove bottom wall surface and the first side surface.

8. The rotating shaft mechanism according to claim 4, characterized in that: The first groove bottom wall includes a first sub-surface and a second sub-surface, the first sub-surface is connected to the first top surface and is spaced apart from the first side surface, the second sub-surface is located on a side of the first sub-surface close to the first side surface, and is connected between the first sub-surface and the first side surface, and intersects with both the first sub-surface and the first side surface.

9. The rotating shaft mechanism according to any one of claims 5 to 7, characterized in that: The first groove bottom wall includes a first sub-surface and a second sub-surface, the first sub-surface is connected to the first top surface and is spaced apart from the first side surface, the second sub-surface is located on a side of the first sub-surface close to the first side surface, and is connected between the first sub-surface and the first side surface, and intersects with both the first sub-surface and the first side surface.

10. The rotating shaft mechanism according to claim 8, characterized in that: The first groove bottom wall surface also includes a third transition surface, and the third transition surface is connected between the first sub-surface and the second sub-surface.

11. The rotating shaft mechanism according to claim 9, characterized in that: The first groove bottom wall surface also includes a third transition surface, and the third transition surface is connected between the first sub-surface and the second sub-surface.

12. The rotating shaft mechanism according to any one of claims 1, 2, 5 to 8, 10 and 11, characterized in that: The rotating shaft mechanism further includes a second swing arm, which is rotatably connected to the fixing seat, is spaced apart from the first swing arm, and is connected to the first door panel; Along the length direction of the rotating shaft mechanism, at least a portion of the first avoidance groove and the second swing arm are staggered.

13. The rotating shaft mechanism according to claim 3, characterized in that: The rotating shaft mechanism further includes a second swing arm, which is rotatably connected to the fixing seat, is spaced apart from the first swing arm, and is connected to the first door panel; Along the length direction of the rotating shaft mechanism, at least a portion of the first avoidance groove and the second swing arm are staggered.

14. The rotating shaft mechanism according to claim 4, characterized in that: The rotating shaft mechanism further includes a second swing arm, which is rotatably connected to the fixing seat, is spaced apart from the first swing arm, and is connected to the first door panel; Along the length direction of the rotating shaft mechanism, at least a portion of the first avoidance groove and the second swing arm are staggered.

15. The rotating shaft mechanism according to claim 9, characterized in that: The rotating shaft mechanism further includes a second swing arm, which is rotatably connected to the fixing seat, is spaced apart from the first swing arm, and is connected to the first door panel; Along the length direction of the rotating shaft mechanism, at least a portion of the first avoidance groove and the second swing arm are staggered.

16. The rotating shaft mechanism according to claim 12, characterized in that: Along the length direction of the rotating shaft mechanism, the first avoidance groove and the second swing arm are arranged at a distance.

17. The rotating shaft mechanism according to any one of claims 13 to 15, characterized in that: Along the length direction of the rotating shaft mechanism, the first avoidance groove and the second swing arm are arranged at a distance.

18. The rotating shaft mechanism according to claim 12, characterized in that: Along the length direction of the rotating shaft mechanism, the first avoidance groove is located between the first swing arm and the second swing arm.

19. The rotating shaft mechanism according to any one of claims 13 to 16, characterized in that: Along the length direction of the rotating shaft mechanism, the first avoidance groove is located between the first swing arm and the second swing arm.

20. The rotating shaft mechanism according to claim 17, characterized in that: Along the length direction of the rotating shaft mechanism, the first avoidance groove is located between the first swing arm and the second swing arm.

21. The rotating shaft mechanism according to claim 12, characterized in that: The second swing arm is slidably connected to the first door panel, and the second swing arm comprises a first abutting surface facing away from the fixing seat; The first door panel also includes a first support plate and a first stop block, the first stop block is fixedly connected to the bottom surface of the first support plate, the first stop block includes a second abutting surface facing the fixed seat, and the second abutting surface is arranged opposite to the first abutting surface along the sliding direction of the second swing arm relative to the first door panel.

22. The rotating shaft mechanism according to any one of claims 13 to 16, 18 and 20, characterized in that: The second swing arm is slidably connected to the first door panel, and the second swing arm comprises a first abutting surface facing away from the fixing seat; The first door panel also includes a first support plate and a first stop block, the first stop block is fixedly connected to the bottom surface of the first support plate, the first stop block includes a second abutting surface facing the fixed seat, and the second abutting surface is arranged opposite to the first abutting surface along the sliding direction of the second swing arm relative to the first door panel.

23. The rotating shaft mechanism according to claim 17, characterized in that: The second swing arm is slidably connected to the first door panel, and the second swing arm comprises a first abutting surface facing away from the fixing seat; The first door panel also includes a first support plate and a first stop block, the first stop block is fixedly connected to the bottom surface of the first support plate, the first stop block includes a second abutting surface facing the fixed seat, and the second abutting surface is arranged opposite to the first abutting surface along the sliding direction of the second swing arm relative to the first door panel.

24. The rotating shaft mechanism according to claim 19, characterized in that: The second swing arm is slidably connected to the first door panel, and the second swing arm comprises a first abutting surface facing away from the fixing seat; The first door panel also includes a first support plate and a first stop block, the first stop block is fixedly connected to the bottom surface of the first support plate, the first stop block includes a second abutting surface facing the fixed seat, and the second abutting surface is arranged opposite to the first abutting surface along the sliding direction of the second swing arm relative to the first door panel.

25. The rotating shaft mechanism according to any one of claims 1, 2, 5 to 8, 10, 11, 13 to 16, 18, 20, 21, 23 and 24, characterized in that: The rotating shaft mechanism further includes a third swing arm and a second door plate, wherein the third swing arm is rotatably connected to the fixing seat, and the second door plate is located at one side of the fixing seat and connected to the third swing arm; When the rotating shaft mechanism is in the unfolded state, the first swing arm and the third swing arm are respectively located on two opposite sides of the fixing base, and the first door panel and the second door panel are respectively located on two opposite sides of the fixing base.

26. The rotating shaft mechanism according to claim 3, characterized in that: The rotating shaft mechanism further includes a third swing arm and a second door plate, wherein the third swing arm is rotatably connected to the fixing seat, and the second door plate is located at one side of the fixing seat and connected to the third swing arm; When the rotating shaft mechanism is in the unfolded state, the first swing arm and the third swing arm are respectively located on two opposite sides of the fixing base, and the first door panel and the second door panel are respectively located on two opposite sides of the fixing base.

27. The rotating shaft mechanism according to claim 4, characterized in that: The rotating shaft mechanism further includes a third swing arm and a second door plate, wherein the third swing arm is rotatably connected to the fixing seat, and the second door plate is located at one side of the fixing seat and connected to the third swing arm; When the rotating shaft mechanism is in the unfolded state, the first swing arm and the third swing arm are respectively located on two opposite sides of the fixing base, and the first door panel and the second door panel are respectively located on two opposite sides of the fixing base.

28. The rotating shaft mechanism according to claim 9, characterized in that: The rotating shaft mechanism further includes a third swing arm and a second door plate, wherein the third swing arm is rotatably connected to the fixing seat, and the second door plate is located at one side of the fixing seat and connected to the third swing arm; When the rotating shaft mechanism is in the unfolded state, the first swing arm and the third swing arm are respectively located on two opposite sides of the fixing base, and the first door panel and the second door panel are respectively located on two opposite sides of the fixing base.

29. The rotating shaft mechanism according to claim 12, characterized in that: The rotating shaft mechanism further includes a third swing arm and a second door plate, wherein the third swing arm is rotatably connected to the fixing seat, and the second door plate is located at one side of the fixing seat and connected to the third swing arm; When the rotating shaft mechanism is in the unfolded state, the first swing arm and the third swing arm are respectively located on two opposite sides of the fixing base, and the first door panel and the second door panel are respectively located on two opposite sides of the fixing base.

30. The rotating shaft mechanism according to claim 17, characterized in that: The rotating shaft mechanism further includes a third swing arm and a second door plate, wherein the third swing arm is rotatably connected to the fixing seat, and the second door plate is located at one side of the fixing seat and connected to the third swing arm; When the rotating shaft mechanism is in the unfolded state, the first swing arm and the third swing arm are respectively located on two opposite sides of the fixing base, and the first door panel and the second door panel are respectively located on two opposite sides of the fixing base.

31. The rotating shaft mechanism according to claim 19, characterized in that: The rotating shaft mechanism further includes a third swing arm and a second door plate, wherein the third swing arm is rotatably connected to the fixing seat, and the second door plate is located at one side of the fixing seat and connected to the third swing arm; When the rotating shaft mechanism is in the unfolded state, the first swing arm and the third swing arm are respectively located on two opposite sides of the fixing base, and the first door panel and the second door panel are respectively located on two opposite sides of the fixing base.

32. The rotating shaft mechanism according to claim 22, characterized in that: The rotating shaft mechanism further includes a third swing arm and a second door plate, wherein the third swing arm is rotatably connected to the fixing seat, and the second door plate is located at one side of the fixing seat and connected to the third swing arm; When the rotating shaft mechanism is in the unfolded state, the first swing arm and the third swing arm are respectively located on two opposite sides of the fixing base, and the first door panel and the second door panel are respectively located on two opposite sides of the fixing base.

33. The rotating shaft mechanism according to claim 25, characterized in that: The second door panel includes a second top surface and a second side surface, the second side surface is fixedly connected to the second top surface and is arranged toward the fixed seat, the second door panel is provided with a second avoidance groove, the opening of the second avoidance groove is located on the second top surface, the second avoidance groove passes through at least part of the second side surface, and along the width direction of the rotating shaft mechanism, at least part of the second avoidance groove is staggered with the third swing arm.

34. The rotating shaft mechanism according to any one of claims 26 to 32, characterized in that: The second door panel includes a second top surface and a second side surface, the second side surface is fixedly connected to the second top surface and is arranged toward the fixed seat, the second door panel is provided with a second avoidance groove, the opening of the second avoidance groove is located on the second top surface, the second avoidance groove passes through at least part of the second side surface, and along the width direction of the rotating shaft mechanism, at least part of the second avoidance groove is staggered with the third swing arm.

35. A foldable electronic device, characterized in that: The device comprises a first housing, a second housing, a display screen, and a hinge mechanism according to any one of claims 1 to 34, wherein the hinge mechanism is connected between the first housing and the housing, the display screen comprises a first part, a second part, and a foldable part, the first part is mounted on the first housing, the second part is mounted on the second housing, and the foldable part is arranged opposite to the hinge mechanism; When the foldable electronic device is in a folded state, the first avoidance groove avoids the foldable part.

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