Rotating mechanism and foldable electronic equipment

Abstract

The invention provides a rotating mechanism and foldable electronic equipment. A rotating shaft of the rotating mechanism is fixed to the base. A first protrusion is arranged on the first inner surface of the sliding piece, and a second protrusion is arranged on the second inner surface of the sliding piece. The sliding piece is slidably connected with the rotating shaft. The first inner surface and the second inner surface both face the rotating shaft and are located on the two opposite sides of the rotating shaft in the radial direction respectively. The first protrusions and the second protrusions are arranged in a staggered mode in the radial direction of the rotating shaft. The first synchronous swing arm is provided with a first spiral groove. And the first synchronous swing arm is rotationally connected with the rotating shaft. The first protrusion is located in the first spiral groove and can slide along the first spiral groove. The second synchronous swing arm is provided with a second spiral groove. And the second synchronous swing arm is rotationally connected with the rotating shaft. The second protrusion is located in the second spiral groove and can slide along the second spiral groove. According to the rotating mechanism, the technical problem that in the prior art, a synchronous assembly of a rotating mechanism occupies a large space in the width direction can be solved.

Description

Technical Field

[0001] This application relates to the technical field of electronic products, and particularly to a rotating mechanism and a foldable electronic device. Background Art

[0002] With the development of technology, the appearance (ID) form of electronic devices (such as mobile phones, tablet computers, etc.) has a trend of developing from straight-bar machines to foldable machines. A foldable machine has a large-area screen in the opened state, fully meeting the visual experience of consumers, and is small in volume and convenient to carry in the closed state. A foldable machine generally sets a synchronous component to ensure the synchronous rotation of the middle frames on both left and right sides during the opening and closing process. Currently, the synchronous components mainly include a gear synchronous component and a spiral groove synchronous component. The number of gears in the gear synchronous component must be an even number, and most of the spiral groove synchronous components are also of a double-axis structure. The structures are relatively complex, and the occupied space in the width direction is large. When the foldable machine is in the folded state, the thickness is large, which is not conducive to realizing the thin and light of the foldable machine. Summary of the Invention

[0003] This application provides a rotating mechanism and a foldable electronic device, which can solve the technical problem that the synchronous component of the rotating mechanism in the prior art occupies a large space in the width direction and is not conducive to realizing the thin and light of the foldable electronic device.

[0004] In a first aspect, this application provides a foldable electronic device. The foldable electronic device includes a first housing, a second housing, a display screen, and a rotating mechanism. The rotating mechanism is connected between the first housing and the second housing, and the display screen is installed on the first housing, the second housing, and the rotating mechanism. Among them, the foldable part of the display screen is disposed opposite to the rotating mechanism. When the rotating mechanism rotates, the first housing and the second housing rotate relative to each other, thereby driving the display screen to bend or unfold.

[0005] The rotating mechanism includes: a base, a first synchronous swing arm, a second synchronous swing arm, a rotating shaft, and a sliding member. The rotating shaft is fixed to the base, and the axial direction of the rotating shaft is parallel to the length direction of the base. The sliding member includes a first inner surface and a second inner surface, and the first inner surface and the second inner surface are sequentially arranged along the axial direction of the rotating shaft. The first inner surface is provided with a first protrusion, and the second inner surface is provided with a second protrusion. The sliding member is slidably connected to the rotating shaft and can slide along the axial direction of the rotating shaft. The first inner surface and the second inner surface both face the rotating shaft and are respectively located on opposite sides of the rotating shaft in the radial direction. The first protrusion and the second protrusion are arranged in a radial offset along the rotating shaft.

[0006] The first synchronous swing arm is provided with a first spiral groove. The first synchronous swing arm is connected to the rotating shaft and can rotate around the rotating shaft. The first protrusion is located in the first spiral groove, and when the first synchronous swing arm rotates, the first protrusion can slide along the first spiral groove.

[0007] The second synchronous swing arm is provided with a second spiral groove. The second synchronous swing arm is connected to the rotating shaft and can rotate around the rotating shaft. Along the length direction of the rotating shaft, the second synchronous swing arm and the first synchronous swing arm are arranged in sequence. The second protrusion is located in the second spiral groove, and when the second synchronous swing arm rotates, the second protrusion can slide along the second spiral groove. Wherein, the spiral direction of the second spiral groove is opposite to that of the first spiral groove.

[0008] The first synchronous swing arm is connected to the first housing, and the second synchronous swing arm is connected to the second housing. The foldable electronic device has a folded state and an unfolded state. When the foldable electronic device is in the unfolded state, the rotating mechanism is in the unfolded state, and the first synchronous swing arm and the second synchronous swing arm are unfolded relative to the base. When the first housing rotates relative to the base, it drives the first synchronous swing arm to rotate around the rotating shaft towards the direction close to the base, and the first protrusion slides along the first spiral groove, so that the sliding member slides along the rotating shaft, thereby driving the second protrusion to slide along the second spiral groove, and making the second synchronous swing arm rotate around the rotating shaft towards the direction close to the base, and the second housing rotates towards the direction close to the base, so that the first synchronous swing arm and the second synchronous swing arm are folded relative to the base, the first housing and the second housing are stacked, and the rotating mechanism and the foldable electronic device are in the folded state. Wherein, the rotating directions of the first housing and the second housing are opposite, and the rotating direction of the first synchronous swing arm is opposite to that of the second synchronous swing arm.

[0009] In this embodiment, by providing the first protrusion and the second protrusion on the sliding member, providing the first spiral groove matching with the first protrusion on the first synchronous swing arm, providing the second spiral groove matching with the second protrusion on the second synchronous swing arm, and making the protrusions slide in the corresponding spiral grooves, the synchronous rotation of the first synchronous swing arm and the second synchronous swing arm can be realized, thereby realizing the synchronous rotation of the rotating mechanism, playing the role of simplifying the structure of the synchronous component, reducing the thickness of the rotating mechanism in the folded state, and being beneficial to realizing the lightness and thinness of the foldable electronic device.

[0010] Moreover, for the rotation mechanism provided in this embodiment, the first synchronous swing arm and the second synchronous swing arm can be synchronously rotated by being mounted on the rotation shaft, that is, synchronous rotation can be achieved through a single shaft, which is beneficial to reducing the weight of the foldable electronic device. At the same time, the processing technology of the rotation mechanism can be simplified and the cost can be reduced. Meanwhile, when the first synchronous swing arm and the second synchronous swing arm are both mounted on the rotation shaft, at least a part of the projection of the first synchronous swing arm along the length direction of the base coincides with the second synchronous swing arm. That is to say, the first synchronous swing arm and the second synchronous swing arm share a part of the dimension along the width direction of the base, so that the dimension of the rotation mechanism along the width direction of the base can be reduced, and thus the thickness of the rotation mechanism in the folded state can be reduced, which is beneficial to realizing the thinness and lightness of the foldable electronic device.

[0011] In a possible implementation manner, the sliding member includes a body, a first extension body, and a second extension body. The body is provided with a shaft hole, the fixed shaft is disposed in the shaft hole and can slide along the axial direction of the shaft hole. The first extension body includes the first inner surface, and the second extension body includes the second inner surface. The first extension body and the second extension body are both connected to the body and extend in opposite directions, and the first extension body and the second extension body are respectively located on opposite sides in the radial direction of the rotation shaft.

[0012] In this embodiment, by arranging the first extension body and the second extension body along the length direction of the rotation shaft, the dimension occupied by the sliding member in the width direction of the base can be reduced. Moreover, by providing the first protrusion on the surface of the first extension body facing the rotation shaft and the second protrusion on the surface of the second extension body facing the rotation shaft, the distance between the first protrusion and the second protrusion in the width direction of the base can be reduced, so that the dimension occupied by the sliding member in the width direction of the base can be further reduced, and further the dimension of the rotation mechanism in the width direction of the base can be reduced, and the thickness of the rotation mechanism and the foldable electronic device in the folded state can be reduced.

[0013] In a possible implementation manner, both the first inner surface and the second inner surface are curved in an arc shape toward the rotation shaft direction.

[0014] In this embodiment, by setting the first inner surface and the second inner surface as an arc-shaped bending structure, the synchronous swing arm can be avoided. While realizing the rotation of the first synchronous swing arm and the second synchronous swing arm, the thickness of the first extension body and the second extension body can be reduced, so that the dimension of the sliding member in the width direction of the base can be further reduced, that is, the dimension of the rotation mechanism in the width direction of the base can be reduced, which means the thickness of the rotation mechanism and the foldable electronic device in the folded state can be reduced.

[0015] In a possible implementation, the first protrusion includes a first sub-protrusion and a second sub-protrusion. Along a direction parallel to the axial direction of the rotation axis, the first sub-protrusion and the second sub-protrusion are arranged at intervals. The first spiral groove includes a first sub-spiral groove and a second sub-spiral groove. Along a direction parallel to the axial direction of the rotation axis, the first sub-spiral groove and the second sub-spiral groove are arranged at intervals and have the same spiral direction.

[0016] The first sub-protrusion is installed in the first sub-spiral groove, and the second sub-protrusion is installed in the second sub-spiral groove. When the first synchronous swing arm rotates, the first sub-protrusion slides along the first sub-spiral groove, and the second sub-protrusion slides along the second sub-spiral groove.

[0017] In this embodiment, by providing the first sub-protrusion and the second sub-protrusion on the sliding member, and providing the first sub-spiral groove and the second sub-spiral groove on the first synchronous swing arm, when the first synchronous swing arm rotates around the rotation axis, the first sub-protrusion slides in the first sub-spiral groove, and the second sub-protrusion slides in the second sub-spiral groove, thereby improving the stability of the rotation of the first synchronous swing arm and the stability of the movement of the sliding member, and further improving the reliability of the rotation mechanism and the stability of rotation, and enhancing the user experience.

[0018] In a possible implementation, the first protrusion is a flat square structure, and the orthographic projection of the first spiral groove on a plane is a square. When the first synchronous swing arm rotates relative to the base, the top surface of the first protrusion contacts the bottom wall of the first spiral groove and slides along the bottom wall of the first spiral groove.

[0019] In this embodiment, by setting the first protrusion as a flat square, the contact area between the first protrusion and the first spiral groove can be increased, thereby improving the stability and synchronous accuracy of the rotation of the rotation mechanism.

[0020] In a possible implementation, the second protrusion includes a third sub-protrusion and a fourth sub-protrusion. Along a direction parallel to the axial direction of the rotation axis, the third sub-protrusion and the fourth sub-protrusion are arranged at intervals. The second spiral groove includes a third sub-spiral groove and a fourth sub-spiral groove. Along a direction parallel to the axial direction of the rotation axis, the third sub-spiral groove and the fourth sub-spiral groove are arranged at intervals and have the same spiral direction.

[0021] The third sub-protrusion is installed in the third sub-spiral groove, and the fourth sub-protrusion is installed in the fourth sub-spiral groove. When the second synchronous swing arm rotates, the third sub-protrusion slides along the fourth sub-spiral groove, and the fourth sub-protrusion slides along the fourth sub-spiral groove.

[0022] In this embodiment, by providing a third sub-protrusion and a fourth sub-protrusion on the sliding member, and a third sub-spiral groove and a fourth sub-spiral groove on the second synchronous swing arm, when the second synchronous swing arm rotates around the rotation axis, the third sub-protrusion slides in the third sub-spiral groove, and the fourth sub-protrusion slides in the fourth sub-spiral groove, thereby improving the stability of the rotation of the second synchronous swing arm and the stability of the movement of the sliding member. Furthermore, the reliability of the rotation mechanism and the stability of rotation can be further improved, enhancing the user experience.

[0023] In a possible implementation, the rotation mechanism further includes a first fixing bracket and a second fixing bracket. The first fixing bracket and the second fixing bracket are respectively arranged on opposite sides in the width direction of the base. One end of the first synchronous swing arm away from the base is connected to the first fixing bracket, and one end of the second synchronous swing arm away from the base is connected to the second fixing bracket.

[0024] Among them, the first fixing bracket is fixedly connected to the first housing, and the second fixing bracket is fixedly connected to the second housing. In this embodiment, by providing the first fixing bracket, when the first housing rotates relative to the base, the first synchronous swing arm is driven to rotate relative to the base through the first fixing bracket, thereby improving the stability of the rotation of the first synchronous swing arm. Moreover, in this embodiment, by providing the second fixing bracket, when the second housing rotates relative to the base, the second synchronous swing arm is driven to rotate relative to the base through the second fixing bracket, thereby improving the stability of the rotation of the second synchronous swing arm. Furthermore, the stability of the rotation of the rotation mechanism can be further improved.

[0025] In a possible implementation, the first fixing bracket is provided with a first sliding groove, and the extending direction of the first sliding groove is parallel to the width direction of the first fixing bracket. The first synchronous swing arm includes a first sliding body and a first rotating column. The first rotating column is provided with a first mounting hole, and the first mounting hole axially penetrates the first rotating column along the axis of the first rotating column. The first spiral groove is provided on the outer surface of the first rotating column. The first sliding body is fixedly connected to the first rotating column and is located on the side facing away from the first spiral groove. The first rotating column is sleeved on the outer circumference of the rotation axis, and the rotation axis passes through the first mounting hole. The first sliding body is installed in the first sliding groove and can slide along the first sliding groove.

[0026] When the first fixing bracket rotates relative to the base, it drives the first sliding body to rotate relative to the base and makes the first sliding body slide in the first sliding groove. The first sliding body drives the first rotating column to rotate around the rotation axis and drives the first spiral groove to rotate, so that the first protrusion slides along the first spiral groove, thereby driving the sliding member to slide along the axial direction of the rotation axis. This can improve the stability of the rotation of the first rotating column, thereby improving the stability of the sliding of the first protrusion in the first spiral groove, and further improving the stability and synchronous accuracy of the rotation of the rotation mechanism.

[0027] In a possible implementation manner, the second fixing frame is provided with a second sliding groove, and the extending direction of the second sliding groove is parallel to the width direction of the second fixing frame. The second synchronous swing arm includes a second sliding body and a second rotating column. The second rotating column is provided with a second mounting hole, and the second mounting hole axially penetrates through the second rotating column along the axial direction of the second rotating column. The second spiral groove is provided on the outer surface of the second rotating column. The second sliding body is fixedly connected to the second rotating column and is located on the side facing away from the second spiral groove. The second rotating column is sleeved on the outer periphery of the rotating shaft, and the rotating shaft penetrates through the second mounting hole. The projection of the second rotating column along the axial direction of the rotating shaft at least partially coincides with the second rotating column. The second sliding body is installed in the second sliding groove and can slide along the second sliding groove.

[0028] When the second fixing frame rotates relative to the base, it drives the second sliding body to rotate relative to the base and makes the second sliding body slide in the second sliding groove. The second sliding body drives the second rotating column to rotate around the rotating shaft and drives the second spiral groove to rotate, so that the second protrusion slides along the second spiral groove, thereby driving the sliding member to slide along the axial direction of the rotating shaft. This can improve the stability of the rotation of the second rotating column, thereby improving the stability of the sliding of the second protrusion in the second spiral groove, and further improving the stability and synchronous accuracy of the rotation of the rotating mechanism.

[0029] In a possible implementation manner, the base includes a middle beam and a bracket, the bracket is stacked and fixedly connected with the middle beam, and the surface of the middle beam facing away from the bracket is an arc surface. When the foldable electronic device is in a folded state, the foldable part of the display screen is located outside the rotating mechanism and is disposed opposite to the surface of the middle beam facing away from the bracket.

[0030] In this embodiment, by setting the surface of the middle beam facing away from the bracket as an arc surface to adapt to the bending of the display screen, it is possible to avoid the rotating mechanism from squeezing the display screen and avoid adverse phenomena such as creases on the display screen, which helps to extend the service life of the display screen. At the same time, when the rotating mechanism is in a folded state, the base can also support the foldable part of the display screen, thereby avoiding dents on the display screen.

[0031] In summary, in this application, by providing a first protrusion and a second protrusion on the sliding member of the synchronous component, a first spiral groove cooperating with the first protrusion on the first synchronous swing arm, and a second spiral groove cooperating with the second protrusion on the second synchronous swing arm, and by the protrusion sliding in the corresponding spiral groove, the synchronous rotation of the first synchronous swing arm and the second synchronous swing arm can be realized, thereby realizing the synchronous rotation of the rotating mechanism, playing a role in simplifying the structure of the synchronous component, reducing the thickness of the rotating mechanism in the folded state, and being beneficial to realizing the thin and light of the foldable electronic device.

[0032] Moreover, for the rotation mechanism provided in this application, the first synchronous swing arm and the second synchronous swing arm can achieve synchronous rotation when both are installed on the rotation shaft, that is, synchronous rotation can be achieved through a single shaft, which is beneficial to reducing the weight of the foldable electronic device. At the same time, the processing technology of the rotation mechanism can be simplified and the cost can be reduced. Meanwhile, when the first synchronous swing arm and the second synchronous swing arm are both installed on the rotation shaft, at least part of the projection of the first synchronous swing arm along the length direction of the base coincides with the second synchronous swing arm. That is to say, the first synchronous swing arm and the second synchronous swing arm share part of the dimension along the width direction of the base, which can reduce the dimension of the rotation mechanism along the width direction of the base, thereby reducing the thickness of the rotation mechanism in the folded state and facilitating the realization of the thin and light of the foldable electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of this application or the background art, the following will describe the drawings required to be used in the embodiments of this application or the background art.

[0034] Figure 1 is a schematic structural diagram of the foldable electronic device provided in the embodiment of this application in the first state;

[0035] Figure 2 is a schematic structural diagram of the foldable electronic device provided in the embodiment of this application in the second state;

[0036] Figure 3 is a schematic structural diagram of the foldable electronic device provided in the embodiment of this application in the third state;

[0037] Figure 4 is Figure 3 an exploded structural diagram of the foldable electronic device shown;

[0038] Figure 5 is Figure 4 a schematic structural diagram of the rotation mechanism in the foldable electronic device shown;

[0039] Figure 6 is Figure 5 an exploded structural diagram of the rotation mechanism shown;

[0040] Figure 7 is Figure 6 a partial exploded structural diagram of the base in the rotation mechanism shown;

[0041] Figure 8 is Figure 5 a partial structural diagram of the base in the rotation mechanism shown;

[0042] Figure 9 is Figure 6Partial exploded view of the shown rotating mechanism;

[0043] Figure 10 is Figure 5 Partial view of the shown rotating mechanism;

[0044] Figure 11 is Figure 6 Partial exploded view of the shown rotating mechanism;

[0045] Figure 12 is Figure 11 Partial enlarged view of the fixed frame in the shown rotating mechanism at another angle;

[0046] Figure 13 is Figure 5 Partial view of the shown rotating mechanism;

[0047] Figure 14 is Figure 6 Structure diagram of the synchronization component in the shown rotating mechanism;

[0048] Figure 15 is Figure 14 Exploded view of the shown synchronization component;

[0049] Figure 16 is Figure 14 Enlarged view of the sliding part in the shown synchronization component;

[0050] Figure 17 is Figure 16 Structure diagram of the shown sliding part at another angle;

[0051] Figure 18 is Figure 5 Cross-sectional view of the shown rotating mechanism;

[0052] Figure 19 is Figure 14 Partial view of the shown synchronization component in a semi-expanded state;

[0053] Figure 20 is Figure 14 Partial view of the shown synchronization component in a folded state;

[0054] Figure 21 is the partial structure diagram of the 1 shown foldable electronic device in a folded state. Detailed implementation manners

[0055] The embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

[0056] Please refer to Figures 1 to 3 , Figure 1FIG. 0 is a schematic structural diagram of the foldable electronic device 1000 provided by an embodiment of the present application in a first state. Figure 2 FIG. 1 is a schematic structural diagram of the foldable electronic device 1000 provided by an embodiment of the present application in a second state. Figure 3 FIG. 2 is a schematic structural diagram of the foldable electronic device 1000 provided by an embodiment of the present application in a third state.

[0057] For ease of description, the width direction of the foldable electronic device 1000 is defined as the X direction, the length direction of the foldable electronic device 1000 is defined as the Y direction, and the thickness direction of the foldable electronic device 1000 is defined as the Z direction. The X direction, Y direction, and Z direction are perpendicular to each other in pairs.

[0058] 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 a cellphone as an example for illustration.

[0059] Figure 1 The foldable electronic device 1000 shown is in a folded state. Figure 2 The foldable electronic device 1000 shown is in a semi-expanded state. Figure 3 The foldable electronic device 1000 shown is in an unfolded state. Among them, Figure 2 The unfolding angle α of the foldable electronic device 1000 shown is 90 degrees. Figure 3 The unfolding angle β of the foldable electronic device 1000 shown is 180 degrees.

[0060] It should be noted that there are allowable slight deviations for all the angles illustrated in the embodiments of the present application. For example, Figure 2 The unfolding angle α of the foldable electronic device 1000 shown being 90 degrees means that α can be 90 degrees, or can be approximately 90 degrees, such as 80 degrees, 85 degrees, 95 degrees, or 0 degrees, etc. Figure 3 The unfolding angle β of the foldable electronic device 1000 shown being 180 degrees means that β can be 180 degrees, or can be approximately 180 degrees, such as 170 degrees, 175 degrees, 185 degrees, and 190 degrees, etc. The same understanding can be made for the angles illustrated later.

[0061] The foldable electronic device 1000 shown in the embodiments of the present application is a foldable electronic device that can be folded once. In some other embodiments, the foldable electronic device 1000 can also be a foldable 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 an unfolded state.

[0062] Please refer to Figure 4 , Figure 4 which Figure 3 is a schematic exploded view of the foldable electronic device 1000 shown.

[0063] The foldable electronic device 1000 includes a folding device 200 and a display screen 300. The display screen 300 is mounted on the folding device 200. The display screen 300 includes a display surface 310 and a mounting surface 320, and the display surface 310 and the mounting surface 320 are disposed opposite to each other. The display surface 310 is used for displaying text, images, videos, etc. The display screen 300 includes a first part 330, a second part 340, and a foldable part 350. The foldable part 350 is located between the first part 330 and the second part 340, and the foldable part 350 can be bent around an axis in the Y direction. The first part 330, the second part 340, and the foldable part 350 together form the display screen 300. In this embodiment, the display screen 300 uses a flexible display screen. For example, 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, a quantum dot light-emitting diode (QLED) display screen.

[0064] The folding device 200 includes a first housing 210, a second housing 220, and a rotating mechanism 100. The rotating mechanism 100 is located between the first housing 210 and the second housing 220 and is fixedly connected to the first housing 210 and the second housing 220 to achieve a rotational connection between the first housing 210 and the second housing 220. In this embodiment, the rotating mechanism 100 is fixedly connected to the first housing 210 and the first housing 210 by bolts respectively.

[0065] Exemplarily, the first housing 210 includes a first connecting ear 230. The first connecting ear 230 is provided on one side of the first housing 210 facing the rotating mechanism 100. The rotating mechanism 100 further includes a first bolt 250. The first bolt 250 passes through the rotating mechanism 100 and the first connecting ear 230 and is fixedly connected to the rotating mechanism 100 and the first connecting ear 230, thereby realizing the fixed connection between the first housing 210 and the rotating mechanism 100. The second housing 220 includes a second connecting ear 240. The second connecting ear 240 is provided on one side of the second housing 220 facing the rotating mechanism 100. The rotating mechanism 100 further includes a second bolt 260. The second bolt 260 passes through the rotating mechanism 100 and the second connecting ear 240 and is fixedly connected to the rotating mechanism 100 and the second connecting ear 240, thereby realizing the fixed connection between the second housing 220 and the rotating mechanism 100.

[0066] In other embodiments, the rotating mechanism 100 and the first housing 210 can also be fixedly connected by welding, bonding or other means, and the rotating mechanism 100 and the second housing 220 can also be fixedly connected by welding, bonding or other means.

[0067] Combined Figure 3 and Figure 4 , the display screen 300 is installed on the folding device 200, and the installation surface 320 is fixedly connected to the folding device 200. Specifically, the first housing 210 bears the first part 330 of the display screen 300, and the second housing 220 bears the second part 340. In other words, the first part 330 is installed on the first housing 210, and the second part 340 is installed on the second housing 220. Among them, the rotating mechanism 100 is disposed opposite to the foldable part 350. The first housing 210 and the second housing 220 can rotate relative to each other through the rotating mechanism 100, so that the folding device 200 can be switched between a folded state and an unfolded state.

[0068] Combined Figure 1, when the first housing 210 and the second housing 220 are relatively close to each other, the display screen 300 is driven to fold, so that the foldable electronic device 1000 folds. When the foldable electronic device 1000 is in the folded state, the foldable portion 350 of the display screen 300 is bent, and the first portion 330 and the second portion 340 are disposed opposite to each other. At this time, the display screen 300 is located outside the foldable electronic device 1000, and the foldable portion 350 has a large bending angle, which can greatly reduce the probability of creases appearing in the foldable portion 350 of the display screen 300. In some other embodiments, the display screen 300 can also be folded inward through the rotating mechanism 100. When the display screen 300 is folded inward and the foldable electronic device 1000 is in the folded state, the first portion 330 and the second portion 340 are disposed opposite to each other, and the display screen 300 is between the first housing 210 and the second housing 220, which can greatly reduce the probability of the display screen 300 being damaged and effectively protect the display screen 300.

[0069] Please refer to Figure 2 and Figure 4 , when the first housing 210 and the second housing 220 are relatively far away from each other, the display screen 300 is driven to unfold, so that the foldable electronic device 1000 unfolds to a semi-unfolded state. When the foldable electronic device 1000 is in the semi-unfolded state, the first housing 210 and the second housing 220 unfold to an included angle of α, the first portion 330 and the second portion 340 are relatively unfolded, and the foldable portion 350 is driven to unfold. At this time, the included angle between the first portion 330 and the second portion 340 is α. In this embodiment, α is 90 degrees. In other embodiments, α can also be approximately 90 degrees, or can be 80 degrees, 85 degrees, 95 degrees or 0 degrees, etc.

[0070] Please refer to Figure 3 and Figure 4 , when the first housing 210 and the second housing 220 are further relatively far away from each other, the display screen 300 is driven to further unfold until the foldable electronic device 1000 is flattened, so that the foldable electronic device 1000 is in the unfolded state. When the folding device 200 is in the unfolded state, the included angle between the first housing 210 and the second housing 220 is β. The foldable portion 350 unfolds, and the first portion 330 and the second portion 340 are relatively unfolded. At this time, the included angles between the first portion 330, the second portion 340 and the foldable portion 350 are all β, and the display screen 300 has a large display area, realizing the large-screen display of the foldable electronic device 1000 and improving the user experience. In this embodiment, β is 180 degrees. In other embodiments, β can also be approximately 180 degrees, and can be 170 degrees, 175 degrees, 185 degrees and 190 degrees, etc.

[0071] It should be noted that both the included angle α and the included angle β are the included angles between the first housing 210 and the second housing 220. Here, it is only to distinguish that the angles between the first housing 210 and the second housing 220 of the foldable electronic device 1000 are different in different states. Among them, the included angle α refers to the angle between the first housing 210 and the second housing 220 when the foldable electronic device 1000 is in a semi-expanded state; the included angle β refers to the angle between the first housing 210 and the second housing 220 when the foldable electronic device 1000 is in an expanded state.

[0072] Please refer to Figure 5 and Figure 6 , Figure 5 is Figure 4 the schematic structural diagram of the rotating mechanism 100 in the foldable electronic device 1000 shown in Figure 6 is Figure 5 the exploded structural diagram of the rotating mechanism 100 shown in

[0073] The rotating mechanism 100 includes a base 10, a fixing frame 40, a connecting component 1, and a synchronizing component 50. The connecting component 1 is installed on the base 10 and can rotate relative to the base 10. The fixing frame 40 is installed at one end of the connecting component 1 away from the base 10. The synchronizing component 50 is installed on the base 10 and is connected to the fixing frame 40. When the fixing frame 40 rotates relative to the base 10, it drives the connecting component 1 and the synchronizing component 50 to rotate relative to the base 10, thereby realizing the rotation of the rotating mechanism 100 and enabling the rotating mechanism 100 to switch between a folded state and an expanded state.

[0074] The connecting component 1 can be one or multiple. When there are multiple connecting components 1, the multiple connecting components 1 are arranged at intervals in the Y direction. In this embodiment, there are four connecting components 1. The four connecting components 1 are arranged at intervals in the Y direction. Among them, "multiple" means two or more than three, and the same explanation is made below.

[0075] Each connecting component 1 includes a main swing arm 20 and a secondary swing arm 30. The main swing arm 20 includes a first main swing arm 21 and a second main swing arm 22. The first main swing arm 21 and the second main swing arm 22 are respectively installed on opposite sides of the base 10 in the X direction and are rotationally and slidably connected to the base 10. The secondary swing arm 30 includes a first secondary swing arm 31 and a second secondary swing arm 32. The first secondary swing arm 31 and the second secondary swing arm 32 are respectively located on opposite sides of the base 10 in the X direction and are rotationally and slidably connected to the base 10. Among them, the first secondary swing arm 31 and the first main swing arm 21 are on the same side of the base 10 in the X direction and are spaced apart from each other. The second secondary swing arm 32 and the second main swing arm 22 are on the same side of the base 10 in the X direction and are spaced apart from each other.

[0076] Any two connecting components 1 can have the same structure, or similar structures. They can be symmetric structures or asymmetric structures. In this embodiment, the structures of the four connecting components 1 are all the same, and in each connecting component 1, there is one first main swing arm 21, one second main swing arm 22, one first auxiliary swing arm 31, and one second auxiliary swing arm 32. In other embodiments, one connecting component 1 may also include multiple first main swing arms 21, or multiple second main swing arms 22, or multiple first auxiliary swing arms 31, or multiple second auxiliary swing arms 32.

[0077] Combined with Figure 5 and Figure 6 , the fixing frame 40 includes a first fixing frame 41 and a second fixing frame 42. The first fixing frame 41 and the second fixing frame 42 are respectively located on opposite sides of the base 10 in the X direction. Among them, the first fixing frame 41, the first main swing arm 21, and the first auxiliary swing arm 31 are on the same side of the base 10 in the X direction, and the first fixing frame 41 is connected to the first main swing arm 21 and the first auxiliary swing arm 31.

[0078] When the first fixing frame 41 rotates relative to the base 10, it drives the first main swing arm 21 and the first auxiliary swing arm 31 to rotate relative to the base 10. The second fixing frame 42, the second main swing arm 22, and the second auxiliary swing arm 32 are on the same side of the base 10 in the X direction, and the second fixing frame 42 is connected to the second main swing arm 22 and the second auxiliary swing arm 32. When the second fixing frame 42 rotates relative to the base 10, it drives the second main swing arm 22 and the second auxiliary swing arm 32 to rotate relative to the base 10.

[0079] The synchronizing component 50 can be one or multiple. When there are multiple synchronizing components 50, the multiple synchronizing components 50 are arranged at intervals in the Y direction and are spaced apart from the connecting component 1. Any two synchronizing components 50 can have the same structure, or similar structures. They can be symmetric structures or asymmetric structures. In this embodiment, there are two synchronizing components 50, and the structures of the two synchronizing components 50 are the same and are symmetrically arranged. The synchronizing component 50 is installed on the base 10 and is rotatably connected to the base 10. One end of the synchronizing component 50 away from the base 10 is connected to the fixing frame 40. When the fixing frame 40 rotates relative to the base 10, it drives the synchronizing component 50 to rotate relative to the base 10.

[0080] Please refer to Figure 7 , Figure 7 which is Figure 6 a partial exploded structural schematic diagram of the base 10 in the rotating mechanism 100 shown.

[0081] The base 10 includes a middle beam 11 and a bracket 12. The middle beam 11 is a long strip-shaped housing. In this embodiment, the middle beam 11 is of an integral structure. That is, the middle beam 11 is prepared by integral molding. The integrally molded middle beam 11 has high strength and can enhance the structural strength of the rotating mechanism 100. In other embodiments, the middle beam 11 can also be of a split structure. That is, the middle beam 11 includes a plurality of sub-middle beams. The plurality of sub-middle beams are fixedly connected. Specifically, the plurality of sub-middle beams can be fixedly connected by one or more of the ways such as screw connection, rivet connection, welding, bonding, etc. It should be noted that the "plurality" here means two or more. That is to say, the middle beam 11 can be composed of two sub-middle beams connected to each other, or can also be composed of three or more middle beams connected in sequence.

[0082] The middle beam 11 includes a first surface 111 and a second surface 112. The first surface 111 is an arc surface. The first surface 111 includes a first side edge 113 and a second side edge 114. The first side edge 113 and the second side edge 114 are respectively located at opposite ends of the arc extension direction of the first surface 111, that is, at opposite ends in the X direction. The first surface 111 and the second surface 112 are connected to each other, and the first side edge 113 and the second side edge 114 are respectively connected to opposite side edges of the second surface in the X direction. When the rotating mechanism 100 is applied to the foldable electronic device 1000, the first surface 111 faces the display screen 300. By setting the first surface 111 as an arc surface, it can adapt to the bending of the display screen 300, thereby avoiding creases on the foldable part 350 of the display screen 300.

[0083] The second surface 112 is provided with a groove 115. The groove 115 is long strip-shaped. The bottom wall of the groove 115 is an arc surface and bends towards the first surface 111. The groove 115 is used to install the synchronization component 50.

[0084] The second surface 112 is also provided with a first installation groove 116 and a second installation groove 117. In this embodiment, the first installation groove 116 and the second installation groove 117 are arranged opposite to each other in the X direction. That is to say, the projection of the first installation groove 116 in the X direction partially coincides or completely coincides with the second installation groove 117. In other embodiments, the first installation groove 116 and the second installation groove 117 can also be arranged offset in the X direction, that is, the projection of the first installation groove 116 in the X direction is completely offset from the second installation groove 117. The bottom walls of the first installation groove 116 and the second installation groove 117 are both arc surfaces and bend towards the second surface 112. The first installation groove 116 is used to install the first main swing arm 21, and the second installation groove 117 is used to install the second main swing arm 22.

[0085] The second surface 112 is further provided with a third mounting groove 118 and a fourth mounting groove 119. The bottom walls of the third mounting groove 118 and the fourth mounting groove 119 are both arc-shaped and bent towards the first surface 111. The third mounting groove 118 and the first mounting groove 116 are arranged at intervals in the Y direction, and the fourth mounting groove 119 and the second mounting groove 117 are arranged at intervals in the Y direction. In this embodiment, the third mounting groove 118 and the fourth mounting groove 119 are arranged in a staggered manner in the X direction, and the projection of the third mounting groove 118 in the Y direction partially coincides with the fourth mounting groove 119. The third mounting groove 118 is used to mount the first auxiliary swing arm 31, and the fourth mounting groove 119 is used to mount the second auxiliary swing arm 32. In other embodiments, the third mounting groove 118 and the fourth mounting groove 119 are arranged opposite to each other in the X direction.

[0086] In this embodiment, by arranging the third mounting groove 118 and the fourth mounting groove 119 in a staggered manner in the X direction, and the projection of the third mounting groove 118 in the Y direction partially coincides with the fourth mounting groove 119, the projection of the first auxiliary swing arm 31 in the Y direction coincides with the second auxiliary swing arm 32, so that the size occupied by the first auxiliary swing arm 31 and the second auxiliary swing arm 32 in the X direction can be reduced, and further the thickness of the rotating mechanism 100 in the folded state can be reduced.

[0087] The bracket 12 is a long strip plate-like structure. The bracket 12 includes a third surface 121, a fourth surface 122, a third side surface 123 and a fourth side surface 124. The third surface 121 and the fourth surface 122 are arranged opposite to each other in the Z direction. The third side surface 123 and the fourth side surface 124 are arranged opposite to each other in the X direction and are both connected between the third surface 121 and the fourth surface 122.

[0088] The bracket 12 is provided with a notch 125. The notch 125 includes a first notch 1251, a second notch 1252 and a connecting notch 1253. The first notch 1251 and the second notch 1252 are arranged in a staggered manner in the X direction. That is to say, the projection of the first notch 1251 in the X direction is completely staggered from the second notch 1252 and there is no overlapping part. The first notch 1251 is located on the side close to the third side surface 123 and penetrates through the third surface 121, the fourth surface 122 and the third side surface 123. The second notch 1252 is located on the side close to the fourth side surface 124 and penetrates through the third surface 121, the fourth surface 122 and the fourth side surface 124. The connecting notch 1253 connects the first notch 1251 and the second notch 1252.

[0089] It can be understood that the first notch 1251, the second notch 1252 and the connecting notch 1253 together divide the bracket 12 into at least two parts. That is to say, the bracket 12 includes at least two sub-brackets. The first notch 1251, the second notch 1252 and the connecting notch 1253 are located between two adjacent sub-brackets. That is to say, the bracket 12 is of a split structure. In other embodiments, the bracket 12 can also be of an integral structure to improve the structural strength of the bracket 12.

[0090] The bracket 12 is further provided with a first through groove 126, a second through groove 127, a third through groove 128 and a fourth through groove 129. The first through groove 126 and the second through groove 127 are oppositely arranged along the X direction. The third through groove 128 and the fourth through groove 129 are arranged in a staggered manner along the X direction. Moreover, the third through groove 128 and the first through groove 126 are arranged at intervals along the Y direction, and the fourth through groove 129 and the second through groove 127 are arranged at intervals along the Y direction.

[0091] Combined with Figure 7 and Figure 8 , Figure 8 is Figure 5 a partial structural schematic diagram of the base in the shown rotating mechanism 100.

[0092] The bracket 12 is fixedly connected to the middle beam 11. The third surface 121 faces the second surface 112. The third side surface 123 and the first side edge 113 are on the same side of the base 10 along the X direction. The fourth side surface 124 and the second side edge 114 are on the same side of the base 10 along the X direction. In this embodiment, the bracket 12 and the middle beam 11 are fixedly connected by bolts. In other embodiments, the bracket 12 and the middle beam 11 can also be fixedly connected by means such as bonding and welding.

[0093] Among them, the notch 125 is oppositely arranged to the groove 115, and they are mutually communicated and together form a receiving groove 101. The receiving groove 101 is used for installing the synchronization component 50. The first through groove 126 is oppositely arranged to the first installation groove 116 and together forms a first rotation groove 102. The first rotation groove 102 is used for installing the first main swing arm 21, and the first main swing arm 21 can rotate and slide along the first rotation groove 102. The second through groove 127 is oppositely arranged to the second installation groove 117 and together forms a second rotation groove 103. The second rotation groove 103 is used for installing the second main swing arm 22, and the second main swing arm 22 can rotate and slide along the second rotation groove 103. The third through groove 128 is oppositely arranged to the third installation groove 118 and together forms a third rotation groove 104. The third rotation groove 104 is used for installing the first sub-swing arm 31, and the first sub-swing arm 31 can rotate and slide along the third rotation groove 104. The fourth through groove 129 is oppositely arranged to the fourth installation groove 119 and together forms a fourth rotation groove 105. The fourth rotation groove 105 is used for installing the second sub-swing arm 32, and the second sub-swing arm 32 can rotate and slide along the fourth rotation groove 105.

[0094] It should be noted that Figure 7 and Figure 8 only show a partial structure of the base 10 in the positive Y-axis direction. The structure of the base 10 in the negative Y-axis direction is the same as or similar to that in the positive Y-axis direction, and the structure of the base 10 in the negative Y-axis direction can be appropriately adjusted according to the structures of the connecting component 1 and the synchronization component 50.

[0095] Please refer to Figure 9 , Figure 9 which Figure 6 is a partial exploded structural schematic diagram of the shown rotating mechanism 100.

[0096] The first main swing arm 21 includes a first rotating body 211 and a first connecting body 212. Both the first rotating body 211 and the first connecting body 212 are arc-shaped structures and are fixedly connected to each other. Among them, the structure of the first rotating body 211 is adapted to the structure of the first rotating groove 102. Here, "being adapted" means that the bending radian of the first rotating body 211 is the same as or approximately the same as the bending radian of the bottom wall of the first rotating groove 102, and the first rotating body 211 can rotate and slide along the first rotating groove 102.

[0097] The structure of the second main swing arm 22 is substantially the same as that of the first main swing arm 21. The second main swing arm 22 includes a second rotating body 221 and a second connecting body 222. Both the second rotating body 221 and the second connecting body 222 are arc-shaped structures and are fixedly connected to each other. Among them, the structure of the second rotating body 221 is adapted to the structure of the second rotating groove 103. That is, the bending radian of the second rotating body 221 is the same as or approximately the same as the bending radian of the bottom wall of the second rotating groove 103, and the second rotating body 221 can rotate and slide along the second rotating groove 103.

[0098] Please combine Figure 9 and Figure 10 , Figure 10 which Figure 5 is a partial structural schematic diagram of the shown rotating mechanism 100.

[0099] The first main swing arm 21 is installed on one side of the base 10 in the positive X-axis direction. The first rotating body 211 is installed in the first rotating groove 102, and the lower surface of the first rotating body 211 faces the bottom wall of the first rotating groove 102. The first connecting body 212 is used for rotationally and slidably connecting with the first fixing frame 41. When the first main swing arm 21 rotates relative to the base 10, the first rotating body 211 slides and rotates in the first rotating groove 102, and the lower surface of the first rotating body 211 slides and rotates along the bottom wall of the first rotating groove 102.

[0100] The second main swing arm 22 is installed on the negative X-axis side of the base 10 and is symmetrically arranged with the first main swing arm 21. The second rotating body 221 is installed in the second rotating groove 103, and the lower surface of the second rotating body 221 faces the bottom wall of the second rotating groove 103. The second connecting body 222 is used for rotatably and slidably connecting with the second fixing bracket 42. When the second main swing arm 22 rotates relative to the base 10, the second rotating body 221 slides and rotates in the second rotating groove 103, and the lower surface of the second rotating body 221 slides and rotates along the bottom wall of the second rotating groove 103.

[0101] Please continue to refer to Figure 9 and Figure 10 , the auxiliary swing arm 30 includes a first auxiliary swing arm 31 and a second auxiliary swing arm 32. The first auxiliary swing arm 31 includes a first auxiliary rotating body 311 and a first swinging body 312. The first auxiliary rotating body 311 is an arc-shaped structure, and the first swinging body 312 is a rectangular plate-like structure. The first auxiliary rotating body 311 and the first swinging body 312 are fixedly connected to each other. Among them, the structure of the first auxiliary rotating body 311 is adapted to the structure of the third rotating groove 104. That is, the bending radian of the first auxiliary rotating body 311 is the same as or approximately the same as the bending radian of the bottom wall of the third rotating groove 104, and the first auxiliary rotating body 311 can rotate and slide along the third rotating groove 104.

[0102] The second auxiliary swing arm 32 and the first auxiliary swing arm 31 are rotationally symmetric structures. The second auxiliary swing arm 32 includes a second auxiliary rotating body 321 and a second swinging body 322. The second auxiliary rotating body 321 is an arc-shaped structure, and the second swinging body 322 is a rectangular plate-like structure. The second auxiliary rotating body 321 and the second swinging body 322 are fixedly connected to each other. Among them, the structure of the second auxiliary rotating body 321 is adapted to the structure of the third rotating groove 104. That is, the bending radian of the second auxiliary rotating body 321 is the same as or approximately the same as the bending radian of the bottom wall of the third rotating groove 104, and the second auxiliary rotating body 321 can rotate and slide along the third rotating groove 104.

[0103] The first auxiliary swing arm 31 is installed on the positive X-axis side of the base 10 and is arranged at an interval from the first main swing arm 21 in the Y direction. The first auxiliary rotating body 311 is installed in the third rotating groove 104, and the lower surface of the first auxiliary rotating body 311 faces the bottom wall of the third rotating groove 104. The first swinging body 312 is used for slidably connecting with the first fixing bracket 41. When the first auxiliary swing arm 31 rotates relative to the base 10, the first auxiliary rotating body 311 slides and rotates in the third rotating groove 104, and the lower surface of the first auxiliary rotating body 311 slides and rotates along the bottom wall of the third rotating groove 104.

[0104] The second secondary swing arm 32 is installed on the negative X-axis side of the base 10 and is arranged at an interval from the second main swing arm 22 in the Y direction. The second secondary rotating body 321 is installed in the fourth rotating groove 105, and the lower surface of the second secondary rotating body 321 faces the bottom wall of the fourth rotating groove 105. The second swinging body 322 is used for slidably connecting with the second fixing frame 42. When the second secondary swing arm 32 rotates relative to the base 10, the second secondary rotating body 321 slides and rotates in the fourth rotating groove 105, and the lower surface of the second secondary rotating body 321 slides and rotates along the bottom wall of the fourth rotating groove 105.

[0105] In this embodiment, the second secondary swing arm 32 and the first secondary swing arm 31 are arranged in a staggered manner in the X direction, and the positive projection part of the second secondary swing arm 32 in the Y direction coincides with the first secondary swing arm 31. This can reduce the occupied space of the secondary swing arm 30 in the X direction, thereby reducing the size of the rotating mechanism 100 in the X direction, which is beneficial to reducing the thickness of the foldable electronic device 1000 in the folded state and facilitating the realization of the thin and light of the foldable electronic device 1000.

[0106] Please refer to Figure 11 and Figure 12 , Figure 11 is Figure 6 the partial exploded structural schematic diagram of the rotating mechanism 100 shown in Figure 12 is Figure 11 the partial enlarged structural schematic diagram of the fixing frame 40 in the rotating mechanism 100 shown in another angle.

[0107] The fixing frame 40 includes a first fixing frame 41 and a second fixing frame 42. The first fixing frame 41 is a long strip structure. The first fixing frame 41 includes a first upper surface 411, a first lower surface 412, a first side surface 413 and a second side surface 414. The first upper surface 411 and the first lower surface 412 are arranged oppositely and are respectively located on the opposite sides in the thickness direction (Z direction) of the first fixing frame 41. The first side surface 413 and the second side surface 414 are arranged oppositely and are respectively located on the opposite sides in the width direction (X direction) of the first fixing frame 41. Moreover, both the first side surface 413 and the second side surface 414 are connected between the first upper surface 411 and the first lower surface 412.

[0108] The first fixing bracket 41 is provided with a first guide groove 415, a first sliding groove 416 and a third sliding groove 417. The first guide groove 415 extends in an arc shape. Along the extending direction of the first guide groove 415, one end of the first guide groove 415 penetrates through the first side surface 413, and the other end penetrates through the first lower surface 412. The first guide groove 415 is used for installing the first main swing arm 21 to realize the rotational and sliding connection between the first fixing bracket 41 and the first main swing arm 21. Moreover, the structure of the first guide groove 415 is adapted to the first connecting body 212 of the first main swing arm 21. That is to say, the first connecting body 212 can slide in an arc shape along the first guide groove 415.

[0109] The third sliding groove 417 and the first guide groove 415 are arranged at intervals along the Y direction. The third sliding groove 417 extends along the X direction, and the opposite ends of the third sliding groove 417 penetrate through the first side surface 413 and the second side surface 414 respectively. The third sliding groove 417 is used for installing the first auxiliary swing arm 31 to realize the sliding connection between the first fixing bracket 41 and the first auxiliary swing arm 31. The first sliding groove 416 and the third sliding groove 417 and the first guide groove 415 are arranged at intervals along the Y direction. The first sliding groove 416 extends along the X direction, and the opposite ends of the first sliding groove 416 penetrate through the first side surface 413 and the second side surface 414 respectively. The first sliding groove 416 is used for installing the first synchronous swing arm 51 in the synchronous component 50 to realize the connection between the first fixing bracket 41 and the synchronous component 50.

[0110] The structure of the second fixing bracket 42 is substantially the same as that of the first fixing bracket 41. The second fixing bracket 42 includes a second upper surface 421, a second lower surface 422, a third side surface 423 and a fourth side surface 424. The second fixing bracket 42 is provided with a second guide groove 425, a second sliding groove 426 and a fourth sliding groove 427. One end of the second guide groove 425 penetrates through the third side surface 423, and the other end penetrates through the second lower surface 422. The second guide groove 425 is used for installing the second main swing arm 22 to realize the rotational and sliding connection between the second fixing bracket 42 and the second main swing arm 22. Both the fourth sliding groove 427 and the second sliding groove 426 extend along the X direction and penetrate through the third side surface 423 and the fourth side surface 424. The fourth sliding groove 427 is used for installing the second auxiliary swing arm 32, and the second sliding groove 426 is used for installing the second synchronous swing arm 52 in the synchronous component 50.

[0111] It should be noted that Figure 11 and Figure 12 only show a part of the structure of the fixing bracket 40 in the positive Y-axis direction. The structure of the fixing bracket 40 in the negative Y-axis direction is the same as or similar to that in the positive Y-axis direction, and the structure of the fixing bracket 40 in the negative Y-axis direction can be appropriately adjusted according to the structures of the connecting component 1 and the synchronous component 50.

[0112] Combined with Figure 13 , Figure 13 is Figure 5Partial structural schematic diagram of the shown rotating mechanism 100.

[0113] The first fixed frame 41 is located in the positive X-axis direction of the base 10. The first fixed frame 41 is fixedly connected to the first housing 210. The first main swing arm 21 and the first sub-swing arm 31 are connected between the first fixed frame 41 and the base 10. The first connecting body 212 is installed in the first guide groove 415 and can slide along the first guide groove 415. The first swinging body 312 is installed in the third chute 417 and can slide along the third chute 417.

[0114] When the first housing 210 rotates relative to the base 10, it drives the first fixed frame 41 to rotate relative to the base 10, thereby driving the first main swing arm 21 to slide and rotate along the first rotation groove 102. At the same time, the first main swing arm 21 rotates and slides along the first guide groove 415. When the first fixed frame 41 rotates relative to the base 10, it also drives the first sub-rotating body 311 of the first sub-swing arm 31 to rotate and slide along the third rotation groove 104. At the same time, the first swinging body 312 slides along the third chute 417.

[0115] The second fixed frame 42 is located in the negative X-axis direction of the base 10 and is arranged opposite to the first fixed frame 41 along the X direction. The second fixed frame 42 is fixedly connected to the second housing 220. The second main swing arm 22 and the second sub-swing arm 32 are connected between the second fixed frame 42 and the base 10. The second connecting body 222 is installed in the second guide groove 425 and can slide along the second guide groove 425. The second swinging body 322 is installed in the fourth chute 427 and can slide along the fourth chute 427.

[0116] When the second housing 220 rotates relative to the base 10, it drives the second fixed frame 42 to rotate relative to the base 10, thereby driving the second main swing arm 22 to slide and rotate along the second rotation groove 103. At the same time, the second main swing arm 22 rotates and slides along the second guide groove 425. When the second fixed frame 42 rotates relative to the base 10, it also drives the second sub-rotating body 321 of the second sub-swing arm 32 to rotate and slide along the third rotation groove 104. At the same time, the second swinging body 322 slides along the fourth chute 427.

[0117] Among them, the rotation directions of the first housing 210 and the second housing 220 are opposite, and the rotation directions of the first fixed frame 41 and the second fixed frame 42 are opposite. For example, when the rotating mechanism 100 switches from the unfolded state to the folded state, the first housing 210 and the first fixed frame 41 rotate counterclockwise, and the second housing 220 and the second fixed frame 42 rotate clockwise. When the rotating mechanism 100 switches from the folded state to the unfolded state, the first housing 210 and the first fixed frame 41 rotate counterclockwise, and the second housing 220 and the second fixed frame 42 rotate clockwise.

[0118] In this embodiment, by providing the first fixing bracket 41 and the second fixing bracket 42, and fixedly connecting the first fixing bracket 41 to the first housing 210 and the second fixing bracket 42 to the second housing 220, the connection strength between the rotating mechanism 100 and the housing can be increased, and the stability of the rotation of the foldable electronic device 1000 can be improved.

[0119] Moreover, in this embodiment, by providing the first main swing arm 21 and the first auxiliary swing arm 31, when the first fixing bracket 41 rotates relative to the base 10, it drives the first main swing arm 21 and the first auxiliary swing arm 31 to rotate relative to the base 10 simultaneously, thereby realizing the rotation of the first fixing bracket 41 and improving the stability of the rotation of the first fixing bracket 41. At the same time, in this embodiment, by providing the second main swing arm 22 and the second auxiliary swing arm 32, when the second fixing bracket 42 rotates relative to the base 10, it drives the second main swing arm 22 and the second auxiliary swing arm 32 to rotate relative to the base 10 simultaneously, thereby realizing the rotation of the second fixing bracket 42 and improving the stability of the rotation of the second fixing bracket 42, and further improving the stability of the rotation of the rotating mechanism 100.

[0120] Please refer to Figure 14 and Figure 15 , Figure 14 is Figure 6 the schematic structural diagram of the synchronization component 50 in the rotating mechanism 100 shown in Figure 15 is Figure 14 the exploded structural diagram of the synchronization component 50 shown in

[0121] The synchronization component 50 includes a first synchronization swing arm 51, a second synchronization swing arm 52, a rotating shaft 53, and a sliding member 54. The first synchronization swing arm 51, the sliding member 54, and the second synchronization swing arm 52 are sequentially installed on the rotating shaft 53. The sliding member 54 is slidably connected to the rotating shaft 53. Both the first synchronization swing arm 51 and the second synchronization swing arm 52 are rotatably connected to the rotating shaft 53 and are slidably and rotatably connected to the sliding member 54. When the first synchronization swing arm 51 rotates, it drives the sliding member 54 to slide along the rotating shaft 53, thereby driving the second synchronization swing arm 52 to rotate, and further realizing the synchronous rotation of the first synchronization swing arm 51 and the second synchronization swing arm 52.

[0122] The first synchronous swing arm 51 includes a first sliding body 511, a first shaft body 512, and a first rotating column 513. The first sliding body 511 has a plate-like structure. The first sliding body 511 is used to be installed in the fourth chute 427, and the first sliding body 511 can slide along the fourth chute 427 to realize the sliding connection between the first synchronous swing arm 51 and the first fixing frame 41. The first shaft body 512 is fixed to the first sliding body 511, and the extending direction of the first shaft body 512 is parallel to the Y direction. The first shaft body 512 is used to be installed in the first chute 416, and the first shaft body 512 can slide along the first chute 416 and rotate around the axis direction of the first shaft body 512 in the first chute 416.

[0123] In this embodiment, the first rotating column 513 has a hollow cylindrical structure. The first rotating column 513 is provided with a first mounting hole 514. The first mounting hole 514 penetrates the first rotating column 513 in the Y direction. The first rotating column 513 is further provided with a first spiral groove 515. The first spiral groove 515 is recessed in the outer peripheral surface of the first rotating column 513. The first spiral groove 515 is spiral and extends around the axial direction of the first rotating column 513. Facing the positive direction of the Y axis, the first spiral groove 515 extends spirally in the counterclockwise direction.

[0124] In this embodiment, the first spiral groove 515 includes two sub-spiral grooves. In other embodiments, the first spiral groove 515 may also include one sub-spiral groove, or the first spiral groove 515 may also include three or more than four sub-spiral grooves. The two sub-spiral grooves in this embodiment are respectively a first sub-spiral groove 5151 and a second sub-spiral groove 5152. The first sub-spiral groove 5151 and the second sub-spiral groove 5152 are arranged in parallel and at intervals along the length direction (Y direction) of the first rotating column 513. In this embodiment, the structures of the first sub-spiral groove 5151 and the second sub-spiral groove 5152 are the same. That is, the shapes and sizes of the first sub-spiral groove 5151 and the second sub-spiral are the same, and the spiral directions are the same.

[0125] The bottom walls of the first sub-spiral groove 5151 and the second sub-spiral groove 5152 are both arc-shaped surfaces. And, the contours of the first sub-spiral groove 5151 and the second sub-spiral groove 5152 are generally parallelogram-shaped. The so-called "contour is generally parallelogram-shaped" means that the contours of the first sub-spiral groove 5151 and the second sub-spiral groove 5152 have two relatively parallel first sides and two relatively parallel second sides, and the positive projection on the plane is a parallelogram. Among them, the two first sides are parallel to the axial direction (Y direction), and the two second sides extend spirally around the axial direction. In other embodiments, the contours of the first sub-spiral groove 5151 and the second sub-spiral groove 5152 may also be generally rhombus-shaped or other square structures.

[0126] The first rotating column 513 is fixedly connected to one end of the first sliding body 511 away from the first shaft body 512, and the first spiral groove 515 faces away from the first sliding body 511. When the first sliding body 511 and the first shaft body 512 rotate relative to the base 10, the first rotating column 513 is driven to rotate simultaneously.

[0127] The structure of the second synchronous swing arm 52 is similar to that of the first synchronous swing arm 51. The second synchronous swing arm 52 includes a second sliding body 521, a second shaft body 522, and a second rotating column 523. The second sliding body 521 is used for sliding connection with the second fixing frame 42. The second shaft body 522 is fixed to the second sliding body 521, and the second shaft body 522 is used for rotational connection with the second fixing frame 42, so as to realize the sliding and rotational connection of the second synchronous swing arm 52 with the second fixing frame 42.

[0128] The second rotating column 523 is provided with a second mounting hole 524 and a second spiral groove 525. The second mounting hole 524 penetrates the second rotating column 523 in the Y direction. The second spiral groove 525 is recessed on the outer peripheral surface of the second rotating column 523. The second spiral groove 525 is spiral and extends along the axial direction of the second rotating column 523. Moreover, the spiral direction of the second spiral groove 525 is opposite to that of the first spiral groove 515. That is, facing the positive direction of the Y axis, the first spiral groove 515 extends spirally in the clockwise direction.

[0129] In this embodiment, the second spiral groove 525 includes a third sub-spiral groove 5251 and a fourth sub-spiral groove 5252. The third sub-spiral groove 5251 and the fourth sub-spiral groove 5252 are arranged in parallel and spaced along the length direction (Y direction) of the second rotating column 523. In this embodiment, the third sub-spiral groove 5251 and the fourth sub-spiral groove 5252 have the same structure. The bottom walls of the third sub-spiral groove 5251 and the fourth sub-spiral groove 5252 are both arc-shaped. Moreover, the profiles of the third sub-spiral groove 5251 and the fourth sub-spiral groove 5252 are generally parallelogram-shaped.

[0130] The second rotating column 523 is fixedly connected to one end of the second sliding body 521 away from the second shaft body 522, and the second spiral groove 525 faces away from the second sliding body 521. When the second sliding body 521 and the second shaft body 522 rotate relative to the base 10, the second rotating column 523 is driven to rotate simultaneously.

[0131] Please refer to Figure 16 and Figure 17 , Figure 16 which is Figure 14 an enlarged structural schematic diagram of the sliding member 54 in the synchronous component 50 shown in Figure 17 and Figure 16 is a structural schematic diagram of the sliding member 54 shown in another angle.

[0132] The sliding member 54 includes a body 541, a first extension body 542, and a second extension body 543. The body 541 includes a first end face 5411 and a second end face 5412. The first end face 5411 and the second end face 5412 are respectively located on opposite sides of the body 541 in the Y direction. The body 541 is provided with a shaft hole 5413. The extending direction of the shaft hole 5413 is the same as the Y direction, and penetrates through the first end face 5411 and the second end face 5412 in the Y direction.

[0133] The first extension body 542 is strip-shaped and has an arc-shaped structure. The bending radian of the first extension body 542 is substantially the same as the bending radian of the rotating shaft 53. The first extension body 542 includes a first inner surface 5421 and a first outer surface 5422. The first inner surface 5421 and the first outer surface 5422 are oppositely arranged along the thickness direction of the first extension body 542 (i.e., the X direction). In this embodiment, the first inner surface 5421 is an arc surface. In other embodiments, the first inner surface 5421 may also be a plane.

[0134] The first inner surface 5421 is provided with a first protrusion 544. The structure of the first protrusion 544 is adapted to the structure of the first spiral groove 515. That is, the first protrusion 544 can be installed in the first spiral groove 515 and can slide along the first spiral groove 515. In this embodiment, the first protrusion 544 includes two sub-protrusions. In other embodiments, the first protrusion 544 may also include one sub-protrusion, or may also include three or more than four sub-protrusions. The two sub-protrusions in this embodiment are respectively a first sub-protrusion 5441 and a second sub-protrusion 5442. Along the length direction of the first extension body 542, the first sub-protrusion 5441 and the second sub-protrusion 5442 are spaced apart on the first inner surface 5421. The structure of the first sub-protrusion 5441 is matched with the structure of the first sub-spiral groove 5151, and the first sub-protrusion 5441 can slide along the first sub-spiral groove 5151. The structure of the second sub-protrusion 5442 is matched with the structure of the second sub-spiral groove 5152, and the second sub-protrusion 5442 can slide along the second sub-spiral groove 5152.

[0135] In this embodiment, both the first sub-protrusion 5441 and the second sub-protrusion 5442 are flat square structures, and the top surface is an arc surface. The "top surface" refers to the surface of the first sub-protrusion 5441 or the second sub-protrusion 5442 that is away from the first inner surface 5421. In other embodiments, the first sub-protrusion 5441 and the second sub-protrusion 5442 may also be spherical segments. It should be explained that the "spherical segment" here refers to a part of a sphere cut off by a plane. That is to say, the spherical segment can be 1 / 2 of the sphere, or 3 / 4 of the sphere, or 3 / 5 of the sphere, etc.

[0136] One end of the first extension body 542 is fixedly connected to the first end face 5411, is spaced apart from the shaft hole 5413, and is located on the negative X-axis side of the shaft hole 5413. The other end of the first extension body 542 extends in the negative Y-axis direction away from the body 541. That is to say, the extension direction of the first extension body 542 is parallel to the Y direction. That is, the length direction of the first extension body 542 is parallel to the Y direction. Wherein, the first inner surface 5421 faces the positive X-axis direction. The first protrusion 544 faces the positive X-axis direction.

[0137] The structure of the second extension body 543 is similar to the structure of the first extension body 542. The second extension body 543 includes a second inner surface 5431 and a second outer surface 5432. The second inner surface 5431 and the second outer surface 5432 are arranged opposite to each other along the thickness direction of the second extension body 543. The second inner surface 5431 is provided with a second protrusion 545. The structure of the second protrusion 545 is adapted to the structure of the second helical groove 525. That is, the second protrusion 545 can be installed in the second helical groove 525 and can slide along the second helical groove 525. In this embodiment, the second protrusion 545 includes a third sub-protrusion 5451 and a fourth sub-protrusion 5452. In this embodiment, both the third sub-protrusion 5451 and the fourth sub-protrusion 5452 are flat square structures, and the top surface is an arc surface. Along the length direction of the second extension body 543, that is, the Y direction, the third sub-protrusion 5451 and the fourth sub-protrusion 5452 are spaced apart on the second inner surface 5431. The structure of the third sub-protrusion 5451 matches the structure of the third sub-helical groove 5251, and the third sub-protrusion 5451 can slide along the third sub-helical groove 5251. The structure of the fourth sub-protrusion 5452 matches the structure of the fourth sub-helical groove 5252, and the fourth sub-protrusion 5452 can slide along the fourth sub-helical groove 5252.

[0138] One end of the second extension body 543 is fixedly connected to the second end face 5412, is spaced apart from the shaft hole 5413, and is located on the positive X-axis side of the shaft hole 5413. The other end of the second extension body 543 extends in the positive Y-axis direction away from the body 541. The second inner surface 5431 faces the positive X-axis direction. The second protrusion 545 faces the positive X-axis direction.

[0139] It can be understood that the first extension body 542 and the second extension body 543 are respectively located on the opposite sides of the body 541 in the Y direction, extend in opposite directions along the Y direction, and the orientations of the first protrusion 544 and the second protrusion 545 are opposite. The first extension body 542 and the second extension body 543 are completely misaligned in the X direction. That is to say, the projection of the first extension body 542 in the X direction and the projection of the second extension body 543 in the X direction are completely misaligned and have no overlapping part. At the same time, the first extension body 542 and the second extension body 543 are respectively connected to the opposite two edges of the body 541 in the X direction, and the first extension body 542 and the second extension body 543 are completely misaligned in the Y direction. That is to say, the projection of the first extension body 542 in the Y direction and the projection of the second extension body 543 in the Y direction are completely misaligned and have no overlapping part.

[0140] Combined with Figure 14 , the first synchronous swing arm 51, the second synchronous swing arm 52 and the slider 54 are all installed on the rotating shaft 53. Among them, the body 541 of the slider 54 is sleeved on the outer periphery of the rotating shaft 53, and the synchronous body can slide along the rotating shaft 53. That is, the rotating shaft 53 passes through the shaft hole 5413. The extending direction of the shaft hole 5413 is consistent with the extending direction of the rotating shaft 53, and both are parallel to the Y direction. The first inner surface 5421 of the first extension body 542 faces the rotating shaft 53, that is, the first protrusion 544 faces the rotating shaft 53. The second inner surface 5431 of the second extension body 543 faces the rotating shaft 53, that is, the second protrusion 545 faces the rotating shaft 53.

[0141] The first rotating column 513 of the first synchronous swing arm 51 is sleeved on the outer periphery of the rotating shaft 53, and the rotating shaft 53 passes through the first mounting hole 514. The first spiral groove 515 faces the first extension body 542, and the first protrusion 544 is installed in the first spiral groove 515. Specifically, the first sub-protrusion 5441 is installed in the first sub-spiral groove 5151 and can slide along the first sub-spiral groove 5151; the second sub-protrusion 5442 is installed in the second sub-spiral groove 5152 and can slide along the second sub-spiral groove 5152.

[0142] The second rotating column 523 of the second synchronous swing arm 52 is sleeved on the outer periphery of the rotating shaft 53, and the rotating shaft 53 passes through the second mounting hole 524. The second rotating column 523 and the first rotating column 513 are respectively located on the opposite sides of the body 541 of the slider 54 in the Y direction. The second spiral groove 525 faces the second extension body 543, and the second protrusion 545 is installed in the second spiral groove 525. Specifically, the third sub-protrusion 5451 is installed in the third sub-spiral groove 5251 and can slide along the third sub-spiral groove 5251, and the fourth sub-protrusion 5452 is installed in the fourth sub-spiral groove 5252 and can slide along the fourth sub-spiral groove 5252.

[0143] Please combine withFigure 18 and Figure 13 , Figure 18 is Figure 5 a schematic cross-sectional structure view of the rotating mechanism 100.

[0144] The synchronization component 50 is installed in the receiving groove 101 of the base 10 and is slidably and rotatably connected to the fixing frame 40. Among them, the rotating shaft 53 is fixedly connected to the base 10. The first shaft body 512 and the first sliding body 511 extend from the first notch 1251 towards the first fixing frame 41 and are installed in the first sliding groove 416. The first sliding body 511 and the first shaft body 512 can slide along the first sliding groove 416, and at the same time, the first shaft body 512 can rotate around the axial direction of the first shaft body 512 in the first sliding groove 416. The second shaft body 522 and the second sliding body 521 extend from the second notch 1252 towards the second fixing frame 42 and are installed in the second sliding groove 426. The second sliding body 521 and the second shaft body 522 can slide along the second sliding groove 426, and at the same time, the second shaft body 522 can rotate around the axial direction of the second shaft body 522 in the second sliding groove 426.

[0145] When the first fixing frame 41 rotates relative to the base 10, it drives the first shaft body 512 and the first sliding body 511 to rotate relative to the base 10, and makes the first shaft body 512 and the first sliding body 511 slide in the first sliding groove 416. At the same time, the first shaft body 512 rotates around its axial direction. When the first sliding body 511 rotates relative to the base 10, it drives the first rotating column 513 to rotate around the rotating shaft 53, the first sub-helical groove 5151 and the second sub-helical groove 5152 rotate around the rotating shaft 53. The inner wall of the first sub-helical groove 5151 abuts against the first sub-projection 5441 and makes the first sub-projection 5441 slide along the first sub-helical groove 5151. The inner wall of the second sub-helical groove 5152 abuts against the second sub-projection 5442 and makes the second sub-projection 5442 slide along the second sub-helical groove 5152, thereby driving the sliding member 54 to slide along the rotating shaft 53.

[0146] When the sliding member 54 slides along the rotating shaft 53, the third sub-projection 5451 and the fourth sub-projection 5452 move along the length direction of the rotating shaft 53. The third sub-projection 5451 abuts against the inner wall of the third sub-helical groove 5251 and slides along the third sub-helical groove 5251. The fourth sub-projection 5452 abuts against the inner wall of the fourth sub-helical groove 5252 and slides along the fourth sub-helical groove 5252 to drive the second rotating column 523 to rotate around the rotating shaft 53, thereby driving the second sliding body 521 to rotate around the rotating shaft 53 and making the second sliding body 521 slide along the second sliding groove 426. At the same time, the second shaft body 522 rotates around its axial direction in the second sliding groove 426 to drive the second fixing frame 42 to rotate relative to the base 10, thereby realizing the synchronous rotation of the first synchronous swing arm 51 and the second synchronous swing arm 52, and the synchronous rotation of the first fixing frame 41 and the second fixing frame 42.

[0147] Among them, the rotation directions of the first fixing bracket 41 and the second fixing bracket 42 are opposite, and the rotation directions of the first synchronous swing arm 51 and the second synchronous swing arm 52 are opposite. When the rotating mechanism 100 rotates from the unfolded state to the folded state, the first fixing bracket 41 and the first synchronous swing arm 51 rotate counterclockwise, and the second fixing bracket 42 and the second synchronous swing arm 52 rotate clockwise. When the rotating mechanism 100 rotates from the folded state to the unfolded state, the first fixing bracket 41 and the first synchronous swing arm 51 rotate clockwise, and the second fixing bracket 42 and the second synchronous swing arm 52 rotate counterclockwise.

[0148] In this embodiment, by providing the synchronous assembly 50, and when the first synchronous swing arm 51 rotates, the second synchronous swing arm 52 can be driven to rotate through the sliding member 54, so as to realize the synchronous rotation of the first synchronous swing arm 51 and the second synchronous swing arm 52, and the synchronous rotation of the rotating mechanism 100 and the foldable electronic device 1000, which is convenient for users to use and improves the user experience.

[0149] Moreover, in this embodiment, by providing the first protrusion 544 and the second protrusion 545 on the sliding member 54, providing the first spiral groove 515 on the first synchronous swing arm 51 that cooperates with the first protrusion 544, and providing the second spiral groove 525 on the second synchronous swing arm 52 that cooperates with the second protrusion 545, and the spiral direction of the first spiral groove 515 is opposite to the spiral direction of the second spiral groove 525, and by the protrusion sliding in the corresponding spiral groove, the synchronous rotation of the first synchronous swing arm 51 and the second synchronous swing arm 52 can be realized, and the synchronous rotation of the rotating mechanism 100 and the foldable electronic device 1000 can be realized. In this embodiment, without providing a synchronous gear in the synchronous assembly 50, the synchronous rotation of the rotating mechanism 100 can be realized, which simplifies the structure of the synchronous assembly 50, can reduce the thickness of the rotating mechanism 100 in the folded state, and is beneficial to the thin and light design of the foldable electronic device 1000. Moreover, in this embodiment, the spiral structure is adopted to realize synchronous rotation, which can improve the reliability of the synchronous assembly 50, the stability of rotation, and the synchronous accuracy of the synchronous assembly 50, thereby improving the stability of the rotation of the rotating mechanism 100 and the foldable electronic device 1000 and improving the user experience.

[0150] In addition, in this embodiment, by setting the first protrusion 544 as a flat square and setting the top surface of the first protrusion 544 as an arc, the contact area between the first protrusion 544 and the first spiral groove 515 can be increased. By setting the second protrusion 545 as a flat square and setting the top surface of the second protrusion 545 as an arc, the contact area between the second protrusion 545 and the second spiral groove 525 can be increased, thereby improving the stability and synchronous accuracy of the rotation of the rotating mechanism 100.

[0151] In this embodiment, by providing a first sub-protrusion 5441 and a second sub-protrusion 5442 on the sliding member 54, and a first sub-helical groove 5151 and a second sub-helical groove 5152 on the first synchronous swing arm 51, when the first synchronous swing arm 51 rotates around the rotation axis 53, the first sub-protrusion 5441 slides in the first sub-helical groove 5151, and the second sub-protrusion 5442 slides in the second sub-helical groove 5152, thereby improving the stability of the rotation of the first synchronous swing arm 51. By providing a third sub-protrusion 5451 and a fourth sub-protrusion 5452 on the sliding member 54, and a third sub-helical groove 5251 and a fourth sub-helical groove 5252 on the second synchronous swing arm 52, when the second synchronous swing arm 52 rotates around the rotation axis 53, the third sub-protrusion 5451 slides in the third sub-helical groove 5251, and the fourth sub-protrusion 5452 slides in the fourth sub-helical groove 5252, thereby improving the stability of the rotation of the second synchronous swing arm 52 and the stability of the movement of the sliding member 54, and further improving the reliability and rotational stability of the rotating mechanism 100, enhancing the user experience.

[0152] In this embodiment, by arranging the synchronous body and the second extension body 543 in the Y direction, the size occupied by the sliding member 54 in the X direction can be reduced. Moreover, by providing the first protrusion 544 on the first inner surface 5421 of the first extension body 542 and the second protrusion 545 on the second inner surface 5431 of the second extension body 543, the distance between the first protrusion 544 and the second protrusion 545 in the X direction can be reduced, thereby further reducing the size of the sliding member 54 in the X direction. At the same time, by arranging the first extension body 542 and the second extension body 543 to be arc-shaped and bent towards the rotation axis 53 to avoid the synchronous swing arms, while the first synchronous swing arm 51 and the second synchronous swing arm 52 rotate, the thickness of the first extension body 542 and the second extension body 543 can be reduced, thereby further reducing the size of the sliding member 54 in the X direction, and further reducing the size of the rotating mechanism 100 in the X direction and the thickness of the rotating mechanism 100 and the foldable electronic device 1000 in the folded state.

[0153] Moreover, in this embodiment, both the first synchronous swing arm 51 and the second synchronous swing arm 52 are mounted on the rotation axis 53. That is to say, the synchronous component 50 in this embodiment can achieve synchronous rotation through a single axis. The structure of the synchronous component 50 is simple, which is beneficial to reducing the weight of the foldable electronic device 1000. At the same time, it can also simplify the processing technology of the rotating mechanism 100 and reduce the cost.

[0154] It can be understood that when the first rotating column 513 and the second rotating column 523 are installed on a rotating shaft 53, the first rotating column 513 and the second rotating column 523 at least partially overlap in the Y direction. That is, the positive projection of the first rotating column 513 in the Y direction at least partially overlaps with the second rotating column 523. In other words, the first synchronous swing arm 51 and the second synchronous swing arm 52 share part of the dimension in the X direction. This can reduce the occupied dimension of the synchronous assembly 50 in the X direction, thereby reducing the thickness of the rotating mechanism 100 in the folded state, which is beneficial to realizing the thin and light of the foldable electronic device 1000.

[0155] In one embodiment, the first synchronous swing arm 51 is rotatably connected to the first fixing bracket 41, and the second synchronous swing arm 52 is rotatably connected to the second fixing bracket 42. The first fixing bracket 41 is provided with a shaft seat, and the first shaft body 512 is rotatably installed in the shaft seat. When the first fixing bracket 41 rotates relative to the base 10, it drives the first synchronous swing arm 51 to rotate relative to the base 10, and at the same time, the first shaft body 512 rotates around its axial direction. The second fixing bracket 42 is provided with a shaft seat, and the second shaft body 522 is rotatably installed in the shaft seat. When the second fixing bracket 42 rotates relative to the base 10, it drives the second synchronous swing arm 52 to rotate relative to the base 10, and at the same time, the second shaft body 522 rotates around its axial direction.

[0156] In another embodiment, the first synchronous swing arm 51 is slidably connected to the first fixing bracket 41, and the second synchronous swing arm 52 is slidably connected to the second fixing bracket 42. The first synchronous swing arm 51 is not provided with the first shaft body 512, that is, the first synchronous swing arm 51 includes the first rotating column 513 and the first sliding body 511. When the first fixing bracket 41 rotates relative to the base 10, it drives the first synchronous swing arm 51 to rotate relative to the base 10, and at the same time, the first sliding body 511 slides relative to the first fixing bracket 41. The second synchronous swing arm 52 is not provided with the second shaft body 522, that is, the second synchronous swing arm 52 includes the second rotating column 523 and the second sliding body 521. When the second fixing bracket 42 rotates relative to the base 10, it drives the second synchronous swing arm 52 to rotate relative to the base 10, and at the same time, the second sliding body 521 slides relative to the second fixing bracket 42.

[0157] Please refer to Figure 13 、 Figure 18 and Figure 19 , Figure 19 is Figure 14 a partial structural schematic diagram of the synchronous assembly 50 in a semi-expanded state shown in

[0158] As shown in Figure 13 and Figure 18As shown, when the rotating mechanism 100 is in the deployed state, the first fixing bracket 41 and the second fixing bracket 42 are relatively deployed, and the first synchronous swing arm 51 and the second synchronous swing arm 52 are relatively deployed. That is, the angle between the first fixing bracket 41 and the second fixing bracket 42 is approximately 180°, and the angle between the first synchronous swing arm 51 and the second synchronous swing arm 52 is approximately 180°.

[0159] When the first fixing bracket 41 rotates counterclockwise relative to the base 10, it drives the first sliding body 511 to rotate counterclockwise. At the same time, the first sliding body 511 slides along the first chute 416, the first shaft body 512 rotates around its axis direction, and the first sliding body 511 drives the first rotating column 513 to rotate counterclockwise around the rotating shaft 53. When the first rotating column 513 rotates counterclockwise, the groove wall of the first sub-helical groove 5151 exerts a force on the first sub-projection 5441 in the positive Y-axis direction, and the groove wall of the second sub-helical groove 5152 exerts a force on the second sub-projection 5442 in the negative Y-axis direction, thereby driving the sliding member 54 to move in the negative Y-axis direction, that is, in the direction close to the first synchronous swing arm 51. When the sliding member 54 moves in the negative Y-axis direction, the third sub-projection 5451 and the fourth sub-projection 5452 move in the negative Y-axis direction. Moreover, the third sub-projection 5451 slides along the third sub-helical groove 5251, the fourth sub-projection 5452 slides along the fourth sub-helical groove 5252, and at the same time, the third sub-projection 5451 and the fourth sub-projection 5452 exert a force on the second rotating column 523, causing the second rotating column 523 to rotate clockwise around the rotating shaft 53, thereby driving the second sliding body 521 to rotate clockwise, and further driving the second fixing bracket 42 to rotate clockwise, and making the rotating mechanism 100 and the synchronous assembly 50 in a semi-deployed state (as Figure 19 shown).

[0160] Please refer to Figure 19 and Figure 20 , Figure 20 which Figure 14 is a partial structural schematic diagram of the synchronous assembly 50 in the folded state as shown.

[0161] As Figure 19 shown, when the rotating mechanism 100 is in the semi-deployed state, the synchronous assembly 50 is in the folded state, the angle between the first fixing bracket 41 and the second fixing bracket 42 is approximately 90°, and the angle between the first synchronous swing arm 51 and the second synchronous swing arm 52 is approximately 90°.

[0162] When the first fixing bracket 41 continues to rotate counterclockwise relative to the base 10, it drives the first sliding body 511 to continue rotating counterclockwise, and drives the first rotating column 513 to rotate counterclockwise, thereby driving the first protrusion 544 to slide along the first spiral groove 515, and driving the sliding member 54 to continue moving in the negative Y-axis direction. When the sliding member 54 moves in the negative Y-axis direction, the second protrusion 545 moves in the negative Y-axis direction and slides along the second spiral groove 525, thereby driving the second rotating column 523 to rotate clockwise, so as to drive the second sliding body 521 to continue rotating clockwise, and further drive the second fixing bracket 42 to continue rotating clockwise, and rotate the rotating mechanism 100 and the synchronization assembly 50 to the folded state (as Figure 20 shown).

[0163] When the rotating mechanism 100 is in the folded state, the synchronization assembly 50 is in the folded state. The first fixing bracket 41 and the second fixing bracket 42 are arranged opposite to each other and substantially parallel. The first synchronization swing arm 51 and the second synchronization swing arm 52 are arranged substantially parallel. "Substantially parallel" means that the included angle is 0 degree, or slightly greater than 0 degree (within the tolerance range).

[0164] When the rotating mechanism 100 rotates from the folded state to the unfolded state, the first fixing bracket 41 rotates clockwise relative to the base 10, drives the first sliding body 511 and the first rotating column 513 to rotate clockwise, and drives the first protrusion 544 to move in the positive Y-axis direction through the first spiral groove 515, thereby driving the sliding member 54 to move in the positive Y-axis direction. When the sliding member 54 moves in the positive Y-axis direction, the second protrusion 545 moves in the positive Y-axis direction and slides along the second spiral groove 525, thereby driving the second rotating column 523 to rotate counterclockwise, so as to drive the second sliding body 521 to rotate counterclockwise, and further drive the second fixing bracket 42 to rotate counterclockwise, so that the first fixing bracket 41 and the second fixing bracket 42 are relatively unfolded, and the first synchronization swing arm 51 and the second synchronization swing arm 52 are relatively unfolded.

[0165] Please refer to Figure 21 , Figure 21 which is a partial structural schematic diagram of the foldable electronic device 1000 in the folded state shown in FIG. 1.

[0166] When the foldable electronic device 1000 is in the folded state, the rotating mechanism 100 is in the folded state, and the outer surface of the base 10 is substantially arc-shaped. The foldable part 350 of the display screen 300 is located outside the rotating mechanism 100, and is arranged opposite to the outer surface of the base 10, the first lower surface 412 of the first fixing bracket 41, and the second lower surface 422 of the second fixing bracket 42. The part of the foldable part 350 opposite to the outer surface of the base 10 is bent into an arc shape, and has substantially the same bending curvature as the outer surface of the base 10. Combined with Figure 7, the "outer surface of the base 10" refers to the surface formed by the first surface 111, the third side surface 123, and the fourth side surface 124 together.

[0167] In this embodiment, by setting the outer surface of the base 10 to be arc-shaped to adapt to the bending of the display screen 300, it is possible to avoid the rotating mechanism 100 from squeezing the display screen 300 and prevent bad phenomena such as creases on the display screen 300, which helps to extend the service life of the display screen 300. At the same time, when the rotating mechanism 100 is in the folded state, the base 10 can also support the foldable part 350 of the display screen 300, thereby preventing dents on the display screen 300.

[0168] 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 rotating mechanism, characterized in that, Comprising: A base, a first synchronous swing arm, a second synchronous swing arm, a rotating shaft, and a sliding member; The rotating shaft is fixed to the base, and the axial direction of the rotating shaft is parallel to the length direction of the base; The sliding member includes a first inner surface and a second inner surface, which are arranged in sequence along the axial direction of the rotating shaft; the first inner surface is provided with a first protrusion, and the second inner surface is provided with a second protrusion; the sliding member is slidably connected to the rotating shaft and can slide along the axial direction of the rotating shaft, the first inner surface and the second inner surface both face the rotating shaft and are respectively located on opposite sides of the rotating shaft in the radial direction, and the first protrusion and the second protrusion are arranged offset in the radial direction of the rotating shaft; The first synchronous swing arm is provided with a first spiral groove, the first synchronous swing arm is connected to the rotating shaft and can rotate around the rotating shaft, the first protrusion is located in the first spiral groove, and when the first synchronous swing arm rotates, the first protrusion can slide along the first spiral groove; The second synchronous swing arm is provided with a second spiral groove, the second synchronous swing arm is connected to the rotating shaft and can rotate around the rotating shaft, along the length direction of the rotating shaft, the second synchronous swing arm and the first synchronous swing arm are arranged in sequence; the second protrusion is located in the second spiral groove, and when the second synchronous swing arm rotates, the second protrusion can slide along the second spiral groove; wherein, the spiral direction of the second spiral groove is opposite to the spiral direction of the first spiral groove.

2. The rotating mechanism according to claim 1, characterized in that, The rotating mechanism has a folded state and an unfolded state; when the rotating mechanism is in the unfolded state, the first synchronous swing arm and the second synchronous swing arm are unfolded relative to the base, when the first synchronous swing arm rotates around the rotating shaft towards the direction close to the base, the first protrusion slides along the first spiral groove, so that the sliding member slides along the rotating shaft, thereby driving the second protrusion to slide along the second spiral groove, and making the second synchronous swing arm rotate around the rotating shaft towards the direction close to the base, so that the first synchronous swing arm and the second synchronous swing arm are folded relative to the base, and making the rotating mechanism be in the folded state; wherein, the rotating direction of the first synchronous swing arm is opposite to the rotating direction of the second synchronous swing arm.

3. The rotating mechanism according to claim 2, wherein, The sliding member includes a body, a first extension body and a second extension body, the body is provided with a shaft hole, the fixed shaft is arranged in the shaft hole and can slide along the axial direction of the shaft hole; the first extension body includes the first inner surface, and the second extension body includes the second inner surface; The first extension body and the second extension body are both connected to the body and extend in opposite directions, and the first extension body and the second extension body are respectively located on opposite sides of the rotating shaft in the radial direction.

4. The rotating mechanism according to claim 3, characterized in that, Both the first inner surface and the second inner surface are arcuately curved towards the direction of the rotating shaft.

5. The rotating mechanism according to claim 4, wherein The first protrusion includes a first sub-protrusion and a second sub-protrusion, and along the direction parallel to the axial direction of the rotating shaft, the first sub-protrusion and the second sub-protrusion are arranged at intervals; The first helical groove includes a first sub-helical groove and a second sub-helical groove. Along a direction parallel to the axial direction of the rotating shaft, the first sub-helical groove and the second sub-helical groove are arranged at intervals and have the same helical direction. The first sub-projection is installed in the first sub-helical groove, and the second sub-projection is installed in the second sub-helical groove. When the first synchronous swing arm rotates, the first sub-projection slides along the first sub-helical groove, and the second sub-projection slides along the second sub-helical groove.

6. The rotating mechanism according to claim 5, characterized in that, The first projection has a flat square structure, and the orthographic projection of the first helical groove on a plane is square. When the first synchronous swing arm rotates relative to the base, the top surface of the first projection contacts the bottom wall of the first helical groove and slides along the bottom wall of the first helical groove.

7. The rotating mechanism according to claim 5, characterized in that The second projection includes a third sub-projection and a fourth sub-projection. Along a direction parallel to the axial direction of the rotating shaft, the third sub-projection and the fourth sub-projection are arranged at intervals. The second helical groove includes a third sub-helical groove and a fourth sub-helical groove. Along a direction parallel to the axial direction of the rotating shaft, the third sub-helical groove and the fourth sub-helical groove are arranged at intervals and have the same helical direction. The third sub-projection is installed in the third sub-helical groove, and the fourth sub-projection is installed in the fourth sub-helical groove. When the second synchronous swing arm rotates, the third sub-projection slides along the fourth sub-helical groove, and the fourth sub-projection slides along the fourth sub-helical groove.

8. The rotating mechanism according to any one of claims 1 to 7, characterized in that The rotating mechanism further includes a first fixing frame and a second fixing frame. The first fixing frame and the second fixing frame are respectively arranged on opposite sides in the width direction of the base; one end of the first synchronous swing arm away from the base is connected to the first fixing frame, and one end of the second synchronous swing arm away from the base is connected to the second fixing frame.

9. The rotating mechanism according to claim 8, characterized in that, The first fixing frame is provided with a first sliding groove, and the extending direction of the first sliding groove is parallel to the width direction of the first fixing frame. The first synchronous swing arm includes a first sliding body and a first rotating column. The first rotating column is provided with a first mounting hole, and the first mounting hole axially penetrates the first rotating column along the axial direction of the first rotating column. The first helical groove is arranged on the outer surface of the first rotating column; the first sliding body is fixedly connected to the first rotating column and is located on the side facing away from the first helical groove. The first rotating column is sleeved on the outer periphery of the rotating shaft, and the rotating shaft passes through the first mounting hole. The first sliding body is installed in the first sliding groove and can slide along the first sliding groove.

10. The rotating mechanism according to claim 9, characterized in that, The second fixing frame is provided with a second sliding groove, and the extending direction of the second sliding groove is parallel to the width direction of the second fixing frame. The second synchronous swing arm includes a second sliding body and a second rotating column. The second rotating column is provided with a second mounting hole, and the second mounting hole axially penetrates the second rotating column along the axial direction of the second rotating column. The second helical groove is arranged on the outer surface of the second rotating column; the second sliding body is fixedly connected to the second rotating column and is located on the side facing away from the second helical groove. The second rotating column is sleeved on the outer periphery of the rotating shaft, and the rotating shaft passes through the second mounting hole. The projection of the second rotating column along the axial direction of the rotating shaft at least partially coincides with the second rotating column. The second sliding body is installed in the second sliding groove and can slide along the second sliding groove.

11. The rotating mechanism according to claim 8, characterized in that, The base includes a middle beam and a bracket. The bracket is stacked and fixedly connected with the middle beam. The surface of the middle beam facing away from the bracket is an arc surface.

12. A foldable electronic device, characterized in that, It includes a first housing, a second housing, a display screen, and a rotating mechanism according to any one of claims 1 to 11. The rotating mechanism is connected between the first housing and the second housing. The display screen is installed on the first housing, the second housing, and the rotating mechanism. When the rotating mechanism rotates, the first housing and the second housing rotate relative to each other, thereby driving the display screen to bend or unfold.

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