Rotating mechanism and foldable electronic device

Abstract

Provided in the embodiments of the present application are a rotating mechanism and a foldable electronic device, used for alleviating the problem of the poor reliability of flexible screens. The rotating mechanism comprises: a main shaft, a first rotating shaft assembly and a second rotating shaft assembly. In the first rotating shaft assembly, a first end of a first rotating member is rotatably connected to the main shaft, a second end of the first rotating member is slidably connected to a first fixed frame in the sliding direction of a first sliding groove, a first end of a first swing rod is rotatably connected to the first rotating member, and a second end of the first swing rod is slidably connected to the first fixed frame in the extending direction of a first guiding groove. In the second rotating shaft assembly, a first end of a second rotating member is rotatably connected to the main shaft, a second end of the second rotating member is slidably connected to a second fixed frame in the extending direction of a second sliding groove, a first end of a second swing rod is rotatably connected to the second rotating member, and a second end of the second swing rod is slidably connected to the second fixed frame in the extending direction of a second guiding groove. The extending direction of the first guiding groove and the extending direction of the second guiding groove are both perpendicular to a second direction.

Description

Rotating mechanism and folding electronic device

[0001] This application claims priority to Chinese patent application filed on January 17, 2025, with application number 202510086678.4 and entitled "Rotation Mechanism and Folding Electronic Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of foldable electronic products technology, and more particularly to a rotating mechanism and a foldable electronic device. Background Technology

[0003] With the continuous development of display technology, foldable display terminals are gradually becoming a development trend for future mobile electronic products. When unfolded, foldable electronic devices can achieve a larger display area, enhancing the viewing experience. When folded, they can achieve a smaller size, making them easy for users to carry.

[0004] The foldable electronic device includes at least a flexible screen and a housing. The housing includes two structural components for supporting the flexible screen and a rotating mechanism. The two structural components are connected to both sides of the rotating mechanism. In actual use, the rotating mechanism drives the two structural components to rotate, causing the foldable electronic device to fold or unfold. In traditional inward-folding electronic devices, when the electronic device is folded, the flexible screen folds inside the housing. The bent portion of the flexible screen is easily damaged by excessive pressure from the housing, resulting in poor reliability of the flexible screen. Summary of the Invention

[0005] This application provides a rotating mechanism and a folding electronic device to improve the poor reliability of flexible screens.

[0006] To achieve the above objectives, the embodiments of this application provide the following solutions:

[0007] On the one hand, a rotating mechanism is provided, including: a main shaft, a first rotating shaft assembly, and a second rotating shaft assembly.

[0008] The main shaft extends along a first direction. The first rotating shaft assembly includes a first rotating member, a first rocker arm, and a first fixed frame. The first end of the first rotating member is rotatably connected to the main shaft, and the second end of the first rotating member is slidably connected to the first fixed frame through a first sliding groove. The second end of the first rotating member can slide relative to the first fixed frame along the extending direction of the first sliding groove. The first end of the first rocker arm is rotatably connected to the first rotating member. The rotation axis of the first rocker arm relative to the first rotating member is the first axis. The second end of the first rocker arm is slidably connected to the first fixed frame through a first guide groove. The second end of the first rocker arm can slide relative to the first fixed frame along the extending direction of the first guide groove. The second rotating shaft assembly includes a second rotating component, a second rocker arm, and a second fixed frame. The first end of the second rotating component is rotatably connected to the main shaft, and the second end of the second rotating component is slidably connected to the second fixed frame through a second slide groove. The second end of the second rotating component can slide relative to the second fixed frame along the extension direction of the second slide groove. The first end of the second rocker arm is rotatably connected to the second rotating component. The rotation axis of the second rocker arm relative to the second rotating component is the second axis. The second end of the second rocker arm is slidably connected to the second fixed frame through a second guide groove. The second end of the second rocker arm can slide relative to the second fixed frame along the extension direction of the second guide groove.

[0009] When the rotating mechanism is in the deployed state, the second end of the first rotating member, the first end of the first rotating member, the first end of the second rotating member, and the second end of the second rotating member are arranged sequentially along the second direction. The first rotating shaft assembly, the main shaft, and the second rotating shaft assembly together form a supporting plane. The extension directions of the first and second sliding grooves both intersect the supporting plane, and both also intersect a direction perpendicular to the supporting plane. The extension directions of the first and second guide grooves both intersect the supporting plane, and both are perpendicular to the second direction. The orthographic projection of the first axis onto the supporting plane intersects the orthographic projection of the extension direction of the first sliding groove onto the supporting plane, and also intersects the orthographic projection of the first direction onto the supporting plane. Similarly, the orthographic projection of the second axis onto the supporting plane intersects the orthographic projection of the extension direction of the second sliding groove onto the supporting plane, and also intersects the orthographic projection of the first direction onto the supporting plane. A support plane can be used to support a flexible screen, improving the flatness of the flexible screen when it is in a flat state.

[0010] Here, "supporting plane" can be understood as a horizontal plane or an approximately horizontal plane. The horizontal plane can be a horizontal surface parallel to the first direction and the second direction, and the approximately horizontal plane can be a slightly undulating surface. The acceptable deviation range of the approximately horizontal plane can be, for example, a deviation within 5%.

[0011] When the rotating mechanism is in the folded state, the first rotating shaft assembly, the main shaft, and the second rotating shaft assembly together form the accommodating space.

[0012] By providing a first swing arm, when the electronic device is in an unfolded or folded state, a strong constraint is formed between the first rotating component and the first fixed frame through the first swing arm. The positional relationship between the first rotating component and the first fixed frame is relatively stable, which helps to prevent the first rotating component from rotating relative to the first fixed frame. Similarly, by providing a second swing arm, a strong constraint is formed between the second rotating component and the second fixed frame through the second swing arm. The positional relationship between the second rotating component and the second fixed frame is relatively stable, which helps to prevent the second rotating component from rotating relative to the second fixed frame.

[0013] In summary, by setting the first and second swing arms, when the foldable electronic device is impacted or dropped, it is beneficial to prevent the first or second pivot assembly from rotating relative to the main shaft, and to prevent the containment space enclosed by the first and second pivot assemblies and the main shaft from squeezing the flexible screen, thus improving the reliability of the flexible screen.

[0014] In some embodiments, the second end of the first pendulum is slidably connected to the first fixed frame, including: the second end of the first pendulum and the first fixed frame are slidably connected via a first shaft and a first guide groove, the second end of the first pendulum includes the first guide groove, and the first fixed frame is connected to the first shaft; or, the first fixed frame includes the first guide groove, and the second end of the first pendulum is connected to the first shaft; the extension direction of the first shaft is parallel to the first axis. The second end of the second pendulum is slidably connected to the second fixed frame, including: the second end of the second pendulum and the second fixed frame are slidably connected via a second shaft and a second guide groove, the second end of the second pendulum includes the second guide groove, and the second fixed frame is connected to the second shaft; or, the second fixed frame includes the second guide groove, and the second end of the second pendulum is connected to the second shaft; the extension direction of the second shaft is parallel to the second axis.

[0015] With the above configuration, in the thickness direction of the first swing arm, it is beneficial to reduce the space occupied by the first swing arm, which facilitates the thinning of the first rotating shaft assembly; in the thickness direction of the second swing arm, it is beneficial to reduce the space occupied by the second swing arm, which facilitates the thinning of the second rotating shaft assembly.

[0016] In some embodiments, when the rotating mechanism is in the deployed state: both the first axis and the second axis are parallel to the support plane, and both the first axis and the second axis are parallel to the support plane.

[0017] With the above configuration, in the direction perpendicular to the support plane, it is beneficial to reduce the space occupied by the first and second axes, and thus to reduce the thickness of the first and second pivot assemblies, avoiding the first and second pivot assemblies from occupying a large space in the thickness direction; in the direction perpendicular to the support plane, it is beneficial to reduce the space occupied by the third and fourth axes, and thus to reduce the thickness of the first and second pivot assemblies, avoiding the first and second pivot assemblies from occupying a large space in the thickness direction.

[0018] In some embodiments, both the first axis and the second axis are perpendicular to the first direction, and both the first axis and the second axis are perpendicular to the first direction.

[0019] With the above configuration, in the first direction, it is beneficial to reduce the space occupied by the first axis and the second axis, and also beneficial to reduce the size of the first pendulum and the second pendulum in the first direction; in the first direction, it is beneficial to reduce the space occupied by the first axis and the second axis, and also beneficial to reduce the size of the first pendulum and the second pendulum in the first direction.

[0020] In some embodiments, when the rotating mechanism is in the deployed state: in the first direction, the distance between the first end of the first guide groove and the first end of the first rocker arm is greater than the distance between the second end of the first guide groove and the first end of the first rocker arm; in the direction perpendicular to the support plane, the distance between the first end of the first guide groove and the support plane is greater than the distance between the second end of the first guide groove and the support plane. Similarly, in the first direction, the distance between the first end of the second guide groove and the first end of the second rocker arm is greater than the distance between the second end of the second guide groove and the first end of the second rocker arm; in the direction perpendicular to the support plane, the distance between the first end of the second guide groove and the support plane is greater than the distance between the second end of the second guide groove and the support plane. Through the above configuration, the second sliding direction can intersect the support plane, and the second sliding direction can also intersect the first direction; the fourth sliding direction can intersect the support plane, and the fourth sliding direction can also intersect the first direction.

[0021] In some embodiments, the second end of the first rocker arm includes a first guide groove, the first fixing frame is connected to the first shaft, and the second end of the second rocker arm includes a second guide groove, the second fixing frame is connected to the second shaft.

[0022] During the transition from the unfolded state to the folded state of the rotating mechanism, the first shaft moves relative to the first guide groove along the direction from the first end of the first sliding guide groove to the second end of the first guide groove, and the second shaft moves relative to the second guide groove along the direction from the first end of the second guide groove to the second end of the second guide groove. During the transition from the folded state to the unfolded state of the rotating mechanism, the first shaft moves relative to the first guide groove along the direction from the second end of the first sliding guide groove to the first end of the first guide groove, and the second shaft moves relative to the second guide groove along the direction from the second end of the second guide groove to the first end of the second guide groove.

[0023] With the above configuration, during the transition of the rotating mechanism from the unfolded state to the folded state, the distance between the first end of the first swing arm and the first shaft decreases, causing the first end of the first swing arm to move relative to the first slide groove in a direction from the second end of the first slide groove to the first end of the first slide groove; the distance between the first end of the second swing arm and the second shaft decreases, causing the first end of the second swing arm to move relative to the second slide groove in a direction from the second end of the second slide groove to the first end of the second slide groove. During the transition of the rotating mechanism from the folded state to the unfolded state, the distance between the first end of the first swing arm and the first shaft increases, causing the first end of the first swing arm to move relative to the first slide groove in a direction from the first end of the first slide groove to the second end of the first slide groove; the distance between the first end of the second swing arm and the second shaft increases, causing the first end of the second swing arm to move relative to the second slide groove in a direction from the first end of the second slide groove to the second end of the second slide groove.

[0024] In some embodiments, when the rotating mechanism is in the deployed state: in the second direction, the distance between the third end of the first guide groove and the main shaft is greater than the distance between the fourth end of the first guide groove and the main shaft, and the dimensions of the third end of the first guide groove are equal to the dimensions of the fourth end of the first guide groove. In the second direction, the distance between the third end of the second guide groove and the main shaft is greater than the distance between the fourth end of the second guide groove and the main shaft, and the dimensions of the third end of the second guide groove are equal to the dimensions of the fourth end of the second guide groove.

[0025] With the above settings, the sliding distance of the first shaft relative to the third end of the first guide groove is the same as the sliding distance of the first shaft relative to the fourth end of the first guide groove, so that the second sliding direction is perpendicular to the second direction; the sliding distance of the second shaft relative to the third end of the second guide groove is the same as the sliding distance of the second shaft relative to the fourth end of the second guide groove, so that the fourth sliding direction is perpendicular to the second direction.

[0026] In some embodiments, the first end of the first rocker arm can slide relative to the first rotating member along the extension direction of the first axis, and the first end of the second rocker arm can slide relative to the second rotating member along the extension direction of the second axis.

[0027] With the above configuration, during the transition between the unfolded and folded states of the rotating mechanism, the first rocker arm and the first fixed frame can both slide relative to the first rotating component, and the second rocker arm and the second fixed frame can both slide relative to the second rotating component, thereby improving the smoothness of the rotating mechanism's movement.

[0028] In some embodiments, during the transition of the rotating mechanism from an unfolded state to a folded state, the first end of the first swing arm moves relative to the first rotating member along a direction parallel to the first axis and from the main shaft toward the first fixed frame, and the first end of the second swing arm moves relative to the second rotating member along a direction parallel to the second axis and from the main shaft toward the second fixed frame.

[0029] During the transition of the rotating mechanism from the folded state to the unfolded state, the first end of the first swing arm moves relative to the first rotating member along a direction parallel to the first axis and from the first fixed frame toward the main shaft, while the first end of the second swing arm moves relative to the second rotating member along a direction parallel to the second axis and from the second fixed frame toward the main shaft.

[0030] With the above configuration, when the rotating mechanism transitions from an unfolded state to a folded state, the first rocker arm slides away from the main axis relative to the first rotating member, and the second rocker arm slides away from the main axis relative to the second rotating member. Correspondingly, when the rotating mechanism transitions from a folded state to an unfolded state, the first rocker arm slides closer to the main axis relative to the first rotating member, and the second rocker arm slides closer to the main axis relative to the second rotating member.

[0031] In some embodiments, the first end of the first rocker arm is rotatably connected to the first rotating member, including: the first end of the first rocker arm and the first rotating member are rotatably connected via a third shaft and a first mating hole, the first end of the first rocker arm includes the first mating hole, and the third shaft is connected to the first rotating member; or, the first rotating member includes the first mating hole, and the third shaft is connected to the first end of the first rocker arm; the first end of the first rocker arm slides relative to the first rotating member via the third shaft and the first mating hole. The first end of the second rocker arm is rotatably connected to the second rotating member, including: the first end of the second rocker arm and the second rotating member are rotatably connected via a fourth shaft and a second mating hole, the first end of the second rocker arm includes the second mating hole, and the fourth shaft is connected to the second rotating member; or, the second rotating member includes the second mating hole, and the fourth shaft is connected to the first end of the second rocker arm; the first end of the second rocker arm slides relative to the second rotating member via the fourth shaft and the second mating hole.

[0032] The above configuration allows the first rotating member to slide relative to the first end of the first rocker arm, and the second rotating member to slide relative to the first end of the second rocker arm.

[0033] In some embodiments, the first end of the first rocker arm includes a first mating hole, the third shaft is connected to the first rotating member, and the first end of the second rocker arm includes a second mating hole, the fourth shaft is connected to the second rotating member.

[0034] When the rotating mechanism is in the unfolded state: In the second direction, the distance between the first end of the third shaft and the main shaft is less than the distance between the second end of the third shaft and the main shaft, and the distance between the first end of the fourth shaft and the main shaft is less than the distance between the second end of the fourth shaft and the main shaft. During the transition of the rotating mechanism from the unfolded state to the folded state, the first end of the first swing arm moves relative to the first rotating member in the direction from the first end of the third shaft to the second end of the third shaft, and the first end of the second swing arm moves relative to the second rotating member in the direction from the first end of the fourth shaft to the second end of the fourth shaft. During the transition of the rotating mechanism from the folded state to the unfolded state, the first end of the first swing arm moves relative to the first rotating member in the direction from the second end of the third shaft to the first end of the third shaft, and the first end of the second swing arm moves relative to the second rotating member in the direction from the second end of the fourth shaft to the first end of the fourth shaft.

[0035] With the above configuration, when the rotating mechanism transitions from an unfolded state to a folded state, the first rocker arm slides away from the main axis relative to the first rotating member, and the second rocker arm slides away from the main axis relative to the second rotating member. Correspondingly, when the rotating mechanism transitions from a folded state to an unfolded state, the first rocker arm slides closer to the main axis relative to the first rotating member, and the second rocker arm slides closer to the main axis relative to the second rotating member.

[0036] In some embodiments, the first rotating member includes a first helical surface, and the first end of the first rocker arm includes a second helical surface that mates with the first helical surface, the first and second helical surfaces having the same direction of rotation. The second rotating member includes a third helical surface, and the first end of the second rocker arm includes a fourth helical surface that mates with the third helical surface, the third and fourth helical surfaces having the same direction of rotation, and the third helical surface having the opposite direction of rotation to the first helical surface.

[0037] Through the above configuration, the cooperation of the first and second helical surfaces prevents a large relative sliding space between the first end of the first rocker arm and the first rotating component; the cooperation of the third and fourth helical surfaces prevents a large relative sliding space between the first end of the second rocker arm and the second rotating component. This further prevents the first end of the first rocker arm from wobbling relative to the first rotating component and the first end of the second rocker arm from wobbling relative to the second rotating component when the rotating mechanism is subjected to an impact.

[0038] In some embodiments, during the transition between the folded and unfolded states of the rotating mechanism, the distance between the first and second helical surfaces remains unchanged; the distance between the third and fourth helical surfaces also remains unchanged. This arrangement helps to further prevent the first end of the first rocker arm from wobbling relative to the first rotating member, and the first end of the second rocker arm from wobbling relative to the second rotating member, when the rotating mechanism is subjected to an impact.

[0039] In some embodiments, the first end of the first swing arm can slide relative to the first fixed frame along the extending direction of the first slide groove, and the first end of the first swing arm can rotate relative to the main shaft; the first end of the second swing arm can slide relative to the second fixed frame along the extending direction of the second slide groove, and the first end of the second swing arm can rotate relative to the main shaft. With this configuration, during the transition between the unfolded and folded states of the rotating mechanism, the first end of the first swing arm moves with the second end of the first rotating member, and the first end of the second swing arm moves with the second end of the second rotating member.

[0040] In some embodiments, the first end of the first rocker arm and the first rotating member are rotatably connected via a third axis, and the first end of the second rocker arm and the second rotating member are rotatably connected via a fourth axis. When the rotating mechanism is in the unfolded state, in the direction perpendicular to the support plane, the distance between the first axis and the support plane is greater than the distance between the third axis and the support plane; the distance between the first axis and the third axis is a first distance. The distance between the second axis and the support plane is greater than the distance between the fourth axis and the support plane; the distance between the second axis and the fourth axis is a second distance. During the transition of the rotating mechanism from the unfolded state to the folded state, in the thickness direction of the first rotating shaft assembly, the distance between the first axis and the third axis is less than the first distance, and the distance between the second axis and the fourth axis is less than the second distance. When the rotating mechanism is in the folded state, in the second direction, the distance between the first axis and the third axis is less than the first distance, and the distance between the second axis and the fourth axis is less than the second distance.

[0041] With the above settings, during the transition of the rotating mechanism from the unfolded state to the folded state, the space occupied by the first and third axes in the thickness direction of the first rotating shaft assembly is reduced, and the space occupied by the second and fourth axes in the thickness direction of the second rotating shaft assembly is reduced, which is conducive to achieving the thinness and lightness of foldable electronic devices.

[0042] In some embodiments, when the rotating mechanism is in a folded state, the first and third axes at least partially overlap in a first direction, and the second and fourth axes at least partially overlap in the first direction. This arrangement helps to reduce the space occupied by the first and third axes in the thickness direction of the first rotating assembly, and the space occupied by the second and fourth axes in the thickness direction of the second rotating assembly, thus facilitating the thinning and lightening of foldable electronic devices.

[0043] In some embodiments, the second end of the first rotating member is slidably connected to the first fixed frame, including: the second end of the first rotating member and the first fixed frame are slidably connected via a first slider and a first sliding groove, wherein the second end of the first rotating member includes the first slider and the first fixed frame includes the first sliding groove; or, the first fixed frame includes the first slider and the second end of the first rotating member includes the first sliding groove. The second end of the second rotating member is slidably connected to the second fixed frame, including: the second end of the second rotating member and the second fixed frame are slidably connected via a second slider and a second sliding groove, wherein the second end of the second rotating member includes the second slider and the second fixed frame includes the second sliding groove; or, the second fixed frame includes the second slider and the second end of the second rotating member includes the second sliding groove. With the above configuration, the first fixed frame can slide relative to the first rotating member along the extension direction of the first sliding groove, and the second fixed frame can slide relative to the second rotating member along the extension direction of the second sliding groove.

[0044] In some embodiments, when the rotating mechanism is in the deployed state: in the second direction, the distance between the first end of the first slide groove and the main shaft is less than the distance between the second end of the first slide groove and the main shaft; and in the direction perpendicular to the support plane, the distance between the first end of the first slide groove and the support plane is greater than the distance between the second end of the first slide groove and the support plane. In the second direction, the distance between the first end of the second slide groove and the main shaft is less than the distance between the second end of the second slide groove and the main shaft; and in the direction perpendicular to the support plane, the distance between the first end of the second slide groove and the support plane is greater than the distance between the second end of the first slide groove and the support plane.

[0045] In some embodiments, during the transition of the rotating mechanism from an unfolded state to a folded state, the first slider moves relative to the first slide groove in a direction from the second end of the first slide groove to the first end of the first slide groove, and the second slider moves relative to the second slide groove in a direction from the second end of the second slide groove to the first end of the second slide groove. During the transition of the rotating mechanism from a folded state to an unfolded state, the first slider moves relative to the first slide groove in a direction from the first end of the first slide groove to the second end of the first slide groove, and the second slider moves relative to the second slide groove in a direction from the first end of the second slide groove to the second end of the second slide groove.

[0046] With the above configuration, when the rotating mechanism transitions from an unfolded state to a folded state, the first fixed frame slides away from the main axis relative to the first rotating member, and the second fixed frame slides away from the main axis relative to the second rotating member. Correspondingly, when the rotating mechanism transitions from a folded state to an unfolded state, the first fixed frame slides away from the main axis relative to the first rotating member, and the second fixed frame slides away from the main axis relative to the second rotating member. This facilitates adjustment of the length between the first and second fixed frames, ensuring that the length of the flexible screen remains unchanged during the unfolding or folding process of the rotating mechanism, and mitigating the squeezing or stretching phenomena on the flexible screen caused by the rotating mechanism.

[0047] In some embodiments, the first rotating shaft assembly further includes a first support plate and a second support plate. The first support plate is slidably connected to the first rotating member and rotatably connected to the first fixed frame. The second support plate is slidably connected to the second rotating member and rotatably connected to the second fixed frame. When the rotating mechanism is in the unfolded state, the first rotating shaft assembly, the main shaft, and the second rotating shaft assembly together form a support plane, including: the first support plate, the first fixed frame, the main shaft, the second support plate, and the second fixed frame together forming a support plane. When the rotating mechanism is in the folded state, the minimum distance between the support surfaces of the first support plate and the second support plate along the second direction is greater than or equal to the distance between the support surfaces of the first fixed frame and the second fixed frame along the second direction.

[0048] With the above settings, the rotation mechanism can change the relative position of the first support plate and the second support plate to the main axis during the transition between the unfolded and folded states.

[0049] In some embodiments, a first support plate and a first rotating member are slidably connected via a first mating shaft and a third guide groove, the extension direction of the first mating shaft being parallel to a first direction; the first rotating member includes the first mating shaft, and the first support plate includes the third guide groove. A second support plate and a second rotating member are slidably connected via a second mating shaft and a fourth guide groove, the extension direction of the second mating shaft being parallel to the first direction; the second rotating member includes the second mating shaft, and the second support plate includes the fourth guide groove. With the above arrangement, when the first mating shaft moves along the extension direction of the third guide groove, the first support plate and the first rotating member slide relative to each other. When the second mating shaft moves along the extension direction of the fourth guide groove, the second support plate and the second rotating member slide relative to each other.

[0050] In some embodiments, when the rotating mechanism is in the deployed state: the distance between the first end of the first mating shaft and the main shaft is less than the distance between the second end of the first mating shaft and the main shaft, and the distance between the first end of the first mating shaft and the support plane is greater than the distance between the second end of the first mating shaft and the support plane. Similarly, the distance between the first end of the second mating shaft and the main shaft is less than the distance between the second end of the second mating shaft and the main shaft, and the distance between the first end of the second mating shaft and the support plane is greater than the distance between the second end of the second mating shaft and the support plane. With this configuration, compared to setting the first and second mating shafts as circular shafts, it is advantageous to increase the dimensions of the first and second mating shafts in the direction perpendicular to their axes, thereby improving their strength.

[0051] In some embodiments, when the rotating mechanism is in the unfolded state: the distance between the first end of the third guide groove and the main shaft is less than the distance between the second end of the third guide groove and the main shaft, and the distance between the first end of the third guide groove and the support surface of the first support plate is greater than the distance between the second end of the third guide groove and the support surface of the first support plate. The distance between the first end of the fourth guide groove and the main shaft is less than the distance between the second end of the fourth guide groove and the main shaft, and the distance between the first end of the fourth guide groove and the support surface of the second support plate is greater than the distance between the second end of the fourth guide groove and the support surface of the second support plate. With the above arrangement, it is advantageous that when the rotating mechanism is in the unfolded state, the first support plate constitutes part of the support surface of the first rotating shaft assembly, and the second support plate constitutes part of the support surface of the second rotating shaft assembly. It is advantageous that when the rotating mechanism is in the folded state, the distance between the support surfaces of the first and second support plates along the second direction gradually increases towards the main shaft, so that the first rotating shaft assembly, the main shaft, and the second rotating shaft assembly together enclose a teardrop-shaped or approximately teardrop-shaped receiving space.

[0052] On the other hand, a foldable electronic device is provided, including a flexible screen, a first structural member, a second structural member, and a rotating mechanism as described in the above embodiments; the first structural member and the second structural member are connected to both sides of the rotating mechanism, and the flexible screen is located on the same side of the first structural member and the second structural member, and is connected to the first structural member and the second structural member; when the foldable electronic device is in the unfolded state, the supporting plane of the rotating mechanism is used to support the flexible screen; when the foldable electronic device is in the folded state, the first rotating shaft assembly, the main shaft, and the second rotating shaft assembly of the rotating mechanism together constitute an accommodating space, and part of the flexible screen is located within the accommodating space.

[0053] In some embodiments, the first end of the first pendulum and the first rotating member are rotatably connected via a third axis, and the second end of the first pendulum and the first fixed frame are slidably connected via a first axis; the first end of the second pendulum and the second rotating member are rotatably connected via a fourth axis, and the second end of the second pendulum and the second fixed frame are slidably connected via a second axis; the extension directions of the first axis and the third axis are parallel to each other and both perpendicular to the thickness direction of the first structural member; the extension directions of the second axis and the fourth axis are parallel to each other and both perpendicular to the thickness direction of the second structural member.

[0054] The folding electronic device provided in the embodiments of this application includes the rotation mechanism as described above, and therefore has all the above-described beneficial effects, which will not be repeated here. Attached Figure Description

[0055] Figure 1 is a structural diagram of a foldable electronic device in an unfolded state according to an embodiment of this application;

[0056] Figure 2 is a structural diagram of a foldable electronic device in a folded state according to an embodiment of this application;

[0057] Figure 3 is a structural diagram of a rotating mechanism in an unfolded state according to an embodiment of this application;

[0058] Figure 4 is a partial enlarged view of point M in Figure 3 when the rotating mechanism is in a folded state;

[0059] Figure 5 is an exploded view of the partial structure at point M of the rotating mechanism in Figure 3;

[0060] Figure 6 is an exploded view of the structure at point M of the rotating mechanism in Figure 3;

[0061] Figure 7 is an assembly structure diagram of a spindle, a first rotating component, a second rotating component, a first fixed frame, and a second fixed frame provided in an embodiment of this application;

[0062] Figure 8 is an exploded view of a spindle structure provided in an embodiment of this application;

[0063] Figure 9A is a sectional view along section line AA of the rotating mechanism in Figure 4 in the unfolded state.

[0064] Figure 9B is a cross-sectional view along section line AA of the rotating mechanism in Figure 4 in the folded state.

[0065] Figure 10A is a partial structural diagram of a first fixing frame and a second fixing frame provided in an embodiment of this application from a certain perspective;

[0066] Figure 10B is a partial structural diagram of a first fixing frame and a second fixing frame provided in an embodiment of this application from another perspective;

[0067] Figure 11 is a partial structural assembly diagram of a first rotating assembly and a second rotating assembly provided in an embodiment of this application;

[0068] Figure 12A is a partial exploded view of a first rotating assembly and a second rotating assembly provided in an embodiment of this application;

[0069] Figure 12B is a structural diagram of a first and a second pendulum rod provided in an embodiment of this application;

[0070] Figure 13A is a cross-sectional view along section line N1-N1 of the rotating mechanism in Figure 11 in the unfolded state;

[0071] Figure 13B is a cross-sectional view along section line N1-N1 of the rotating mechanism in Figure 11 in the folded state;

[0072] Figure 14A is a cross-sectional view along the N2-N2 section line of the rotating mechanism in Figure 11 in the unfolded state;

[0073] Figure 14B is a cross-sectional view along the N2-N2 section line of the rotating mechanism in Figure 11 in the folded state;

[0074] Figure 15A is an exploded view of the first swing arm, the first rotating member, the second swing arm, and the second rotating member from a first perspective according to an embodiment of this application.

[0075] Figure 15B is an exploded view of the first rocker arm, the first rotating member, the second rocker arm, and the second rotating member from a second perspective according to an embodiment of this application.

[0076] Figure 16A is a sectional view along section line BB of the rotating mechanism in Figure 4 in the unfolded state.

[0077] Figure 16B is a cross-sectional view along section line BB of the rotating mechanism in Figure 4 in the folded state.

[0078] Figure 17A is a cross-sectional view along the CC section line of the rotating mechanism in Figure 4 in the unfolded state;

[0079] Figure 17B is a cross-sectional view along the CC section line of the rotating mechanism in Figure 4 in the folded state.

[0080] Figure 18 is a structural diagram of a first and second swing arm switching between an unfolded state and a folded state according to an embodiment of this application;

[0081] Figure 19A is a structural diagram of a first swing arm and a first rotating member in an unfolded state according to an embodiment of this application;

[0082] Figure 19B is a structural diagram of a first swing arm and a first rotating member in a folded state according to an embodiment of this application;

[0083] Figure 20A is a structural diagram of a second rocker arm and a second rotating member in an unfolded state according to an embodiment of this application;

[0084] Figure 20B is a structural diagram of a second rocker arm and a second rotating member in a folded state according to an embodiment of this application;

[0085] Figure 21 is a front view of a first rotating member and a second rotating member provided in an embodiment of this application;

[0086] Figure 22 is a partial enlarged view of N3 of the first and second support plates in Figure 6;

[0087] Figure 23A is a sectional view along the DD section line of the rotating mechanism in Figure 4 in the unfolded state;

[0088] Figure 23B is a cross-sectional view along section line DD of the rotating mechanism in Figure 4 in the folded state;

[0089] Figure 24A is a sectional view along the EE section line of the rotating mechanism in Figure 4 in the unfolded state;

[0090] Figure 24B is a cross-sectional view along the EE section line of the rotating mechanism in Figure 4 in the folded state;

[0091] Figure 25 is a structural diagram of a first swing arm and a second swing arm provided in an embodiment of this application;

[0092] Figure 26 is a structural diagram of another first swing arm and second swing arm provided in an embodiment of this application;

[0093] Figure 27A is a cross-sectional view along section line FF of the rotating mechanism in Figure 4 in the unfolded state;

[0094] Figure 27B is a cross-sectional view along section line FF of the rotating mechanism in Figure 4 in the folded state;

[0095] Figure 28 is an assembly structure diagram of a first swing arm, a second swing arm, and a main shaft provided in an embodiment of this application;

[0096] Figure 29 is an exploded view of a spindle structure provided in an embodiment of this application. Detailed Implementation

[0097] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0098] In the following description, the terms "first," "second," etc., are used for ease of description only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "multiple" means two or more.

[0099] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0100] As used herein, terms such as “equal,” “parallel,” and “perpendicular” include the described situation and situations that are similar to the described situation, within an acceptable range of deviation, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the particular quantity (i.e., the limitations of the measurement system). For example, “equal” includes absolute equality and approximate equality, where an acceptable range of deviation for approximate equality may be, for example, a difference between the two equal items less than or equal to 5% of either one.

[0101] In the embodiments of this application, the directional indications used to explain the structure and movement of different components, such as up, down, left, right, front, and back, are relative. These indications are appropriate when the components are in the positions shown in the figures. However, if the description of the component positions changes, these directional indications will also change accordingly.

[0102] This application provides a foldable electronic device. The foldable electronic device can be a mobile phone, tablet computer, television, smart wearable products (e.g., smartwatch, smart bracelet), or other terminal products.

[0103] To facilitate understanding of the foldable electronic device 1 provided in this application embodiment, Figure 1 is a structural diagram of a foldable electronic device in an unfolded state, where the area enclosed by the dashed box can be the placement area of ​​the flexible screen 30; Figure 2 is a structural diagram of a foldable electronic device in a folded state. The foldable electronic device 1 will be described below with reference to Figures 1 and 2:

[0104] The foldable electronic device 1 may include a flexible screen 30. The flexible screen 30 may be an active matrix organic light emitting diode (AMOLED) display.

[0105] As a self-emissive display, AMOLED displays do not require a backlight module (BLM). Therefore, when the substrate of an AMOLED display is made of a flexible resin material, such as polyethylene terephthalate (PET), the AMOLED display can be bent.

[0106] In addition, the foldable electronic device 1 also includes a rotating mechanism 10 for supporting the flexible screen 30, a first structural member 21, and a second structural member 22. The rotating mechanism 10 is connected between the first structural member 21 and the second structural member 22. The first structural member 21 and the second structural member 22 support the flexible screen 30, ensuring that the flexible screen 30 remains as flat as possible during use and protecting the non-display surface of the flexible screen 30. The first structural member 21 and the second structural member 22 can rotate relative to the rotating mechanism 10. This application embodiment only briefly illustrates part of the structure of the first structural member 21 and the second structural member 22, and the accompanying drawings are also simplified. This application embodiment does not strictly limit the specific structure of the first structural member 21 and the second structural member 22.

[0107] The first structural member 21 and the second structural member 22 may each include a mid-frame structure for mounting and securing other components of the foldable electronic device 1. Examples include a camera, earphones, handset, buttons, and batteries. This embodiment does not limit the other electronic components mounted on the first structural member 21 and the second structural member 22. The first structural member 21 and the second structural member 22 may also each include a decorative cover plate for protecting the components inside the mid-frame structure and for presenting part of the appearance of the foldable electronic device 1.

[0108] For example, a portion of the flexible screen 30 can be fixed to the first structural member 21 by an adhesive layer, a portion can be fixed to the second structural member 22 by an adhesive layer, and a portion can be fixed to the rotating mechanism 10. The adhesive layer can be a thin film layer formed after applying adhesive. This application embodiment does not limit the specific form of the adhesive layer. For example, the adhesive layer can be an intermittent thin film layer, or the adhesive layer can be a whole thin film layer.

[0109] Figure 3 is a structural diagram of a rotating mechanism in an unfolded state according to an embodiment of this application; Figure 4 is a partial enlarged view of point M in Figure 3 when the rotating mechanism is in a folded state. Referring to Figures 3 and 4, the rotating mechanism 10 includes a main shaft 100, a first rotating shaft assembly 200, and a second rotating shaft assembly 300.

[0110] For ease of explanation, the extension direction of the main shaft 100 is defined as the first direction X, and the arrangement direction of the first rotating shaft assembly 200 and the second rotating shaft assembly 300 when the foldable electronic device 1 is in the unfolded state is defined as the second direction Y. That is, the second direction Y can be the direction in which the first rotating shaft assembly 200 points to the second rotating shaft assembly 300 when the foldable electronic device 1 is in the unfolded state. The second direction Y is perpendicular to the first direction X, and the third direction Z is perpendicular to the plane containing the first direction X and the second direction Y.

[0111] For example, the first rotating shaft assembly 200 is rotatably connected to the main shaft 100, and is also connected to the first structural member 21; the second rotating shaft assembly 300 is rotatably connected to the main shaft 100, and is also connected to the second structural member 22. The rotation axis of the first rotating shaft assembly 200 relative to the main shaft 100 and the rotation axis of the second rotating shaft assembly 300 relative to the main shaft 100 are both parallel to the first direction X. With the above configuration, the first structural member 21 can drive the first rotating shaft assembly 200 to rotate relative to the main shaft 100, and the second structural member 22 can drive the second rotating shaft assembly 300 to rotate relative to the main shaft 100, thereby realizing the folding or unfolding of the foldable electronic device.

[0112] As shown in Figure 3, when the foldable electronic device is in the unfolded state, the included angle between the first structural member 21 and the second structural member 22 can be approximately 180° (understandably, a slight deviation in the included angle between the first structural member 21 and the second structural member 22 is also allowed, for example, the included angle can be 165°, 177°, or 185°). At this time, the rotating mechanism is also in the unfolded state, and the first rotating shaft assembly 200 and the second rotating shaft assembly 300 are arranged along the second direction Y. The first rotating shaft assembly 200, the main shaft 100, and the second rotating shaft assembly 300 together constitute the supporting plane S. The supporting plane S can be used to support the flexible screen and improve the flatness of the flexible screen in the unfolded state.

[0113] Here, "support plane S" can be understood as a plane or an approximate plane. The plane can be a surface parallel to the first direction X and the second direction Y. The approximate plane can be a slightly undulating surface, and the acceptable deviation range of the approximate plane can be, for example, a deviation within 5%.

[0114] In some embodiments, the flexible screen 30 can be fixed to the first rotating shaft assembly 200 and the second rotating shaft assembly 300 by adhesive layers. The thickness of the adhesive layer can be adjusted to adjust the support effect of the rotating mechanism 10 on the flexible screen, thereby ensuring that the flexible screen is in the unfolded state. In this case, "together forming the support plane S" can also be understood as adjusting the thickness of the adhesive layers between the flexible screen and the first rotating shaft assembly 200, and between the flexible screen and the second rotating shaft assembly 300, so that the first rotating shaft assembly 200, the main shaft 100, and the second rotating shaft assembly 300 together form the support plane S, thereby ensuring that the flexible screen is in the unfolded state when unfolded.

[0115] As shown in Figure 4, when the foldable electronic device is in a folded state, the included angle between the first structural member 21 and the second structural member 22 can be approximately 0° (it is understood that the included angle between the first structural member 21 and the second structural member 22 is also allowed to have a slight deviation, for example, the included angle can be 1°, 3° or 5°). At this time, the flexible screen is in a folded state, and the first pivot assembly 200 and the second pivot assembly 300 are also in a folded state, that is, the rotating mechanism is in a folded state.

[0116] In some embodiments, when the foldable electronic device is in a folded state, the first structural member 21 and the second structural member 22 can contact each other to achieve positioning. Alternatively, the first structural member 21 and the second structural member 22 can also be close to each other with a small gap between them; this embodiment does not specifically limit this.

[0117] In some embodiments, when the rotating mechanism 10 is in a folded state, the first rotating shaft assembly 200, the second rotating shaft assembly 300, and the main shaft 100 can jointly enclose a receiving space P, within which a portion of the flexible screen can be located. When the foldable electronic device is impacted or dropped, the first rotating shaft assembly 200 or the second rotating shaft assembly 300 may oscillate relative to the main shaft 100, causing the enclosed receiving space to decrease. This, in turn, causes the flexible screen located within the receiving space to be compressed, affecting the reliability of the flexible screen.

[0118] Figure 5 is a partial exploded view of the rotating mechanism at point M in Figure 3; Figure 6 is a partial exploded view of the rotating mechanism at point M in Figure 3. Referring to Figures 5 and 6, the rotating mechanism provided in the embodiment of this application is described below:

[0119] In this embodiment of the application, the first rotating shaft assembly 200 includes a first rotating member 210, a first fixed frame 230 and a first swing arm 220, and the second rotating shaft assembly 300 includes a second rotating member 310, a second fixed frame 330 and a second swing arm 320.

[0120] For example, the number of first rotating members 210, first fixed frames 230, and first swing arms 220 in the first rotating shaft assembly 200 is not limited. For instance, the first rotating shaft assembly 200 in FIG. 6 may include two first rotating members 210, one first fixed frame 230, and two first swing arms 220. In this embodiment, the structure of the multiple components in the first rotating shaft assembly 200 is not limited, as long as the multiple components have the same motion principle. For example, when there are multiple first rotating members 210, the structures of the multiple first rotating members 210 may be identical, or there may be structural differences between the multiple first rotating members 210.

[0121] Similarly, in the second rotating shaft assembly 300, the number of second rotating members 310, second fixed frames 330, and second swing arms 320 is not limited. For example, the second rotating shaft assembly 300 in Figure 6 may include two second rotating members 310, one second fixed frame 330, and two second swing arms 320. In this embodiment, the structure of the multiple components in the second rotating shaft assembly 300 is not limited; the multiple components only need to have the same motion principle. For example, when there are multiple second rotating members 310, the structures of the multiple second rotating members 310 can be the same, or there can be structural differences between the multiple second rotating members 310.

[0122] The first end 210a of the first rotating component is rotatably connected to the main shaft 100, and the second end 210b of the first rotating component is slidably connected to the first fixed frame 230. The first end 220a of the first rocker arm is rotatably connected to the first rotating component 210, and the second end 220b of the first rocker arm is slidably connected to the first fixed frame 230.

[0123] The first end 210a of the first rotating member can be parallel to the first direction X relative to the rotation axis of the main shaft 100, and the second end 210b of the first rotating member can slide relative to the first fixed frame 230 through the first sliding groove 231. The rotation axis of the first rocker arm 220 relative to the first rotating member 210 is the first axis L1, and the second end 220b of the first rocker arm can slide relative to the first fixed frame 230 through the first guide groove 224.

[0124] Similarly, the first end 310a of the second rotating member is rotatably connected to the main shaft 100, and the second end 310b of the second rotating member is slidably connected to the second fixed frame 330. The first end 320a of the second rocker arm is rotatably connected to the second rotating member 310, and the second end 320b of the second rocker arm is slidably connected to the second fixed frame 330.

[0125] The first end 310a of the second rotating member can be parallel to the first direction X relative to the rotation axis of the main shaft 100, and the second end 310b of the second rotating member can slide relative to the second fixed frame 330 through the second sliding groove 331. The rotation axis of the second rocker arm 320 relative to the second rotating member 310 is the second axis L2, and the second end 320b of the second rocker arm can slide relative to the second fixed frame 330 through the second guide groove 324.

[0126] Furthermore, the first fixing frame 230 can also be connected to the first structural member 21, so that the rotating mechanism is connected to the first structural member 21 through the first fixing frame 230. The second fixing frame 330 can also be connected to the second structural member 22, so that the rotating mechanism is connected to the second structural member 22 through the second fixing frame 330.

[0127] Figure 7 is an assembly structure diagram of a spindle 100, a first rotating member 210, a second rotating member 310, a first fixed frame 230, and a second fixed frame 330 provided in an embodiment of this application. Referring to Figure 7, the first end 210a of the first rotating member and the spindle 100 can be rotatably connected by a first arc-shaped slider 211 and a first arc-shaped groove 101, wherein the first end 210a of the first rotating member may include the first arc-shaped slider 211, and the spindle 100 may include the first arc-shaped groove 101. The first end 310a of the second rotating member and the spindle 100 are rotatably connected by a second arc-shaped slider 311 and a second arc-shaped groove 102, wherein the first end 310a of the second rotating member may include the second arc-shaped slider 311, and the spindle 100 includes the second arc-shaped groove 102.

[0128] Figure 8 is an exploded view of a main shaft 100 provided in an embodiment of this application. Referring to Figure 8, the main shaft 100 may include a main inner shaft and a main outer shaft 110 stacked along a third direction Z, wherein the main inner shaft is closer to the flexible screen than the main outer shaft 110. The main inner shaft may include a first shaft portion 121 and a second shaft portion 122, which are stacked along a third direction Z, and the second shaft portion 122 is located between the first shaft portion 121 and the main outer shaft 110.

[0129] The first shaft portion 121 and the second shaft portion 122 together form a first arc-shaped slide groove 101 and a second arc-shaped slide groove 102. The first arc-shaped slide groove 101 and the second arc-shaped slide groove 102 can be arranged at intervals along the second direction Y, and the central axis of the first arc-shaped slide groove 101 and the central axis of the second arc-shaped slide groove 102 are both parallel to the first direction X.

[0130] Accordingly, the first end 210a of the first rotating member may include a first arc-shaped slider 211, which is slidably connected to the first arc-shaped groove 101, so that the first end 210a of the first rotating member and the main shaft 100 can be rotatably connected through a virtual axis connection. The first end 310a of the second rotating member may include a second arc-shaped slider 311, which is slidably connected to the second arc-shaped groove 102, so that the first end 310a of the second rotating member and the main shaft 100 can be rotatably connected through a virtual axis connection. With the above arrangement, the rotation axis of the first rotating member 210 relative to the main shaft 100 and the rotation axis of the second rotating member 310 relative to the main shaft 100 are both parallel to the first direction X and do not coincide.

[0131] Figure 9A is a cross-sectional view along section line AA of the rotating mechanism in Figure 4 in the unfolded state; Figure 9B is a cross-sectional view along section line AA of the rotating mechanism in Figure 4 in the folded state.

[0132] Referring to Figures 9A and 9B, during the transition of the rotating mechanism from a folded state to an unfolded state, the first arc-shaped slider 211 slides towards the second arc-shaped groove 102 within the first arc-shaped groove 101, gradually increasing the portion of the first arc-shaped slider 211 within the first arc-shaped groove 101. Similarly, the second arc-shaped slider 311 slides towards the first arc-shaped groove 101 within the second arc-shaped groove 102, also gradually increasing the portion of the second arc-shaped slider 311 within the second arc-shaped groove 102. This arrangement facilitates the joint support of the flexible screen by the first rotating member 210, the main shaft 100, and the second rotating member 310 when the rotating mechanism is in the unfolded state.

[0133] During the transition from the unfolded state to the folded state of the rotating mechanism, the first arc-shaped slider 211 slides away from the second arc-shaped slide groove 102 within the first arc-shaped slide groove 101, and the portion of the first arc-shaped slider 211 within the first arc-shaped slide groove 101 gradually decreases. Similarly, the second arc-shaped slider 311 slides away from the first arc-shaped slide groove 101 within the second arc-shaped slide groove 102, and the portion of the second arc-shaped slider 311 within the second arc-shaped slide groove 102 gradually decreases. This arrangement allows the first rotating member 210, the main shaft 100, and the second rotating member 310 to create a space to accommodate the flexible screen when the rotating mechanism is in the folded state.

[0134] In addition, in some other embodiments, the first rotating member 210 may also include a first arc-shaped slide groove 101, and the main shaft 100 may include a first arc-shaped slider 211, so that the first rotating member 210 and the main shaft 100 can be rotatably connected through the first arc-shaped slide groove 101 and the first arc-shaped slider 211; the second rotating member 310 may also include a second arc-shaped slide groove 102, and the main shaft 100 may include a second arc-shaped slider 311, so that the second rotating member 310 and the main shaft 100 can be rotatably connected through the second arc-shaped slide groove 102 and the second arc-shaped slider 311.

[0135] Of course, the first rotating member 210 and the main shaft 100 can also be rotatably connected through other virtual axis connection methods, and the second rotating member 310 and the main shaft 100 can also be rotatably connected through other virtual axis connection methods. This application embodiment does not limit this.

[0136] In this embodiment of the application, when the rotating mechanism is in the unfolded state, the extension direction F1 of the first slide groove 231 can intersect with the supporting plane S, and the extension direction F1 of the first slide groove 231 also intersects with a direction perpendicular to the supporting plane S. For example, the extension direction F1 of the first slide groove 231 can have an angle with the supporting plane S, and the angle is greater than 0 and less than 90 degrees.

[0137] Similarly, when the rotating mechanism is in the deployed state, the extension direction F3 of the second slide groove 331 can intersect the supporting plane S, and the extension direction F3 of the second slide groove 331 also intersects the direction perpendicular to the supporting plane S. For example, the extension direction F3 of the second slide groove 331 can have an angle with the supporting plane S, and the angle is greater than 0 and less than 90 degrees.

[0138] With the above configuration, during the transition of the rotating mechanism from the unfolded state to the folded state, the first fixed frame 230 slides away from the main shaft 100 via the first rotating member 210, and the second fixed frame 330 slides away from the main shaft 100 relative to the second rotating member 310. This facilitates adjustment of the length between the first fixed frame 230 and the second fixed frame 330, ensuring that the length of the flexible screen remains unchanged during the unfolding or folding process of the rotating mechanism, and mitigating the squeezing or stretching phenomenon of the flexible screen by the rotating mechanism.

[0139] Figure 10A is a partial structural diagram of a first fixing frame and a second fixing frame provided in an embodiment of this application from one perspective; Figure 10B is a partial structural diagram of a first fixing frame and a second fixing frame provided in an embodiment of this application from another perspective.

[0140] In some embodiments, referring to FIG7 and in conjunction with FIGS. 10A and 10B, the second end 210b of the first rotating member and the first fixed frame 230 are slidably connected by a first slider 212 and a first groove 231. The second end 210b of the first rotating member includes the first slider 212, and the first fixed frame 230 includes the first groove 231. The second end 310b of the second rotating member and the second fixed frame 330 are slidably connected by a second slider 312 and a second groove 331. The second end 310b of the second rotating member includes the second slider 312, and the second fixed frame 330 includes the second groove 331. With the above configuration, the first fixed frame 230 can slide relative to the first rotating member 210 along the extending direction F1 of the first groove 231, and the second fixed frame 330 can slide relative to the second rotating member 310 along the extending direction F3 of the second groove 331.

[0141] Referring to Figure 9A, when the rotating mechanism is in the unfolded state, in the second direction Y, the distance between the first end 231a of the first slide groove and the main shaft 100 is less than the distance between the second end 231b of the first slide groove and the main shaft 100. In the direction perpendicular to the support plane S, the distance between the first end 231a of the first slide groove and the support plane S is greater than the distance between the second end 231b of the first slide groove and the support plane S.

[0142] For example, the first groove 231 can pass through the first fixing frame 230. In a section perpendicular to the support plane S, the cross-sectional shape of the first groove 231 can be approximately rectangular. The first end 231a of the first groove can be the bottom end of the first groove 231, and the second end 231b of the first groove can be the top end of the first groove 231. Correspondingly, the first slider 212 can be a rectangular slider. The first slider 212 can slide in the first groove 231 so that the second end 210b of the first rotating member and the first fixing frame 230 are slidably connected.

[0143] Similarly, in the second direction Y, when the rotating mechanism is in the unfolded state, the distance between the first end 331a of the second slide and the main shaft 100 is less than the distance between the second end 331b of the second slide and the main shaft 100. In the direction perpendicular to the support plane S, the distance between the first end 331a of the second slide and the support plane S is greater than the distance between the second end 331b of the second slide and the support plane S.

[0144] For example, the second slide groove 331 can penetrate the second fixed frame 330. In a section perpendicular to the support plane S, the cross-sectional shape of the second slide groove 331 can be approximately rectangular. The first end 331a of the second slide groove can be the bottom end of the second slide groove 331, and the second end 331b of the second slide groove can be the top end of the second slide groove 331. Correspondingly, the second slider 312 can be a rectangular slider. The second slider 312 can be slidably connected to the second slide groove 331 so that the second end 310b of the second rotating member is slidably connected to the second fixed frame 330.

[0145] As shown in Figures 9A and 9B, during the transition from the unfolded state to the folded state, the first slider 212 moves relative to the first slide groove 231 along the direction from the second end 231b of the first slide groove to the first end 231a of the first slide groove, and the second slider 312 moves relative to the second slide groove 331 along the direction from the second end 331b of the second slide groove to the first end 331a of the second slide groove.

[0146] During the transition from the folded state to the unfolded state, the first slider 212 moves relative to the first slide groove 231 in the direction from the first end 231a of the first slide groove to the second end 231b of the first slide groove, and the second slider 312 moves relative to the second slide groove 331 in the direction from the first end 331a of the second slide groove to the second end 331b of the second slide groove.

[0147] With the above configuration, during the transition from the unfolded state to the folded state of the rotating mechanism, the first fixed frame 230 slides away from the main shaft 100 relative to the first rotating member 210, and the second fixed frame 330 slides away from the main shaft 100 relative to the second rotating member 310. Correspondingly, during the transition from the folded state to the unfolded state of the rotating mechanism, the first fixed frame 230 slides closer to the main shaft 100 relative to the first rotating member 210, and the second fixed frame 330 slides closer to the main shaft 100 relative to the second rotating member 310. This facilitates adjustment of the length between the first fixed frame 230 and the second fixed frame 330, ensuring that the length of the flexible screen remains unchanged during the unfolding or folding process of the rotating mechanism, and mitigating the squeezing or stretching phenomena on the flexible screen caused by the rotating mechanism.

[0148] Furthermore, based on the same inventive concept, in some other embodiments, the first slide groove can also be disposed on the first rotating member 210, and the first slider 212 can be disposed on the first fixed frame 230, so that the first rotating member 210 and the first fixed frame 230 can be rotatably connected through the first slide groove 231 and the first slider 212; the second rotating member 310 can also include the second slide groove 331, and the second fixed frame 330 can include the second slider 312, so that the second rotating member 310 and the second fixed frame 330 can be rotatably connected through the second slide groove 331 and the second slider 312.

[0149] Of course, the first rotating member 210 and the first fixed frame 230 can also be slidably connected by other connection methods, and the second rotating member 310 and the second fixed frame 330 can also be slidably connected by other connection methods. The specific structure and structural relationship of the first sliding groove 231, the first slider 212, the second sliding groove 331, and the second slider 312 are only illustrative examples of the inventive concept of this application and are not intended to limit the protection scope of this invention. The embodiments of this application do not limit this.

[0150] Figure 11 is a partial structural assembly diagram of a first rotating component and a second rotating component provided in an embodiment of this application; Figure 12A is a partial exploded view of a first rotating component and a second rotating component provided in an embodiment of this application; Figure 12B is a structural diagram of a first rocker arm and a second rocker arm provided in an embodiment of this application.

[0151] In some embodiments, referring to Figures 11, 12A, and 12B, the second end 220b of the first rocker arm is slidably connected to the first fixed frame 230, which may include: the second end 220b of the first rocker arm and the first fixed frame 230 may be slidably connected via a first shaft 410 and a first guide groove 224. Specifically, the second end 220b of the first rocker arm may include the first guide groove 224, and the first fixed frame 230 may be connected to the first shaft 410.

[0152] For example, the first fixing frame 230 may have a mounting hole, and the first shaft 410 may be installed in the mounting hole of the first fixing frame 230. The first shaft 410 may rotate relative to the first fixing frame 230, or the first shaft 410 may be fixedly connected to the first fixing frame 230. With the above configuration, the second end 220b of the first rocker arm may slide relative to the first fixing frame 230 along the extending direction F2 of the first guide groove 224.

[0153] Referring to Figures 10A and 10B, the first mounting bracket 230 may include a first mounting groove 232. The first mounting groove 232 may be located on the side of the first mounting bracket 230 near the first rocker arm 220, and the first mounting groove 232 may communicate with the first sliding groove 231. The assembly hole on the first mounting bracket 230 for mounting the first shaft 410 may be provided in the groove wall of the first mounting groove 232, so that the first shaft 410 can be disposed in the first mounting groove 232.

[0154] Furthermore, at least a portion of the first swing arm 220 overlaps with the first fixed frame 230 along the first direction X, and at least a portion of the first swing arm 220 also overlaps with the first fixed frame 230 along the second direction Y. For example, at least a portion of the first swing arm 220 is located within the first mounting groove 232, and at least a portion of the first swing arm 220 overlaps with the sidewall of the first mounting groove 232 in the first direction X and the second direction Y. This arrangement improves the assembly compactness between the first swing arm 220 and the first fixed frame 230, while avoiding excessive space occupied by the first swing arm 220 and the first fixed frame 230 in the third direction Z, thus facilitating the thinning of the first rotating shaft assembly 200.

[0155] Figure 13A is a cross-sectional view along the N1-N1 section line of the rotating mechanism in Figure 11 in the unfolded state; Figure 13B is a cross-sectional view along the N1-N1 section line of the rotating mechanism in Figure 11 in the folded state.

[0156] Referring to Figures 13A and 13B, the first guide groove 224 can be approximately strip-shaped, and the extension direction F2 of the first guide groove 224 is also the extension direction of this strip-shaped groove. During the transition of the rotating mechanism from the unfolded state to the folded state, the first shaft 410 can slide relative to the first guide groove 224 along the extension direction F2 of the first guide groove 224. The first shaft 410 can rotate relative to the first guide groove 224, so that the second end 220b of the first rocker arm can rotate relative to the first fixed frame 230 through the first shaft 410 and the first guide groove 224.

[0157] In this embodiment, when the rotating mechanism is in the deployed state, the extension direction F2 of the first guide groove 224 can intersect with the supporting plane S. This embodiment does not specifically limit the angle between the extension direction F2 of the first guide groove 224 and the supporting plane S. In some embodiments, when the rotating mechanism is in the deployed state, the first fixed frame 230 and the second fixed frame 330 can constitute part of the supporting plane S. When the second end 220b of the first swing rod slides relative to the first fixed frame 230, in the direction perpendicular to the supporting surface of the first fixed frame 230 (i.e., the thickness direction of the first fixed frame 230), the second end 220b of the first swing rod can have a certain movement component relative to the first fixed frame 230.

[0158] Furthermore, when the rotating mechanism is in the deployed state, the projection of the extension direction F2 of the first guide groove 224 onto the support plane S can also be perpendicular to the projection of the second direction Y onto the support plane S. For example, the extension direction (i.e., the first direction X) of the first fixed frame 230 can also be perpendicular to the second direction Y. When the second end 220b of the first swing arm slides relative to the first fixed frame 230, the second end 220b of the first swing arm can have a certain component of movement relative to the first fixed frame 230 in the extension direction of the first fixed frame 230 (i.e., the length direction of the first fixed frame 230).

[0159] In summary, this helps to prevent the second end 220b of the first swing arm from moving relative to the first fixed frame 230 along the width direction (i.e., the second direction Y) of the first fixed frame 230. In the width direction of the first fixed frame 230, this helps to reduce the space occupied by the second end 220b of the first swing arm.

[0160] Similarly, referring to Figures 11, 12A, and 12B, the second end 320b of the second rocker arm is slidably connected to the second fixed frame 330, which may include: the second end 320b of the second rocker arm and the second fixed frame 330 can be slidably connected via the second shaft 510 and the second guide groove 324. Specifically, the second end 320b of the second rocker arm includes the second guide groove 324, and the second fixed frame 330 is connected to the second shaft 510.

[0161] For example, the second fixing frame 330 may also have a mounting hole, and the second shaft 510 may be installed in the mounting hole of the second fixing frame 330. The second shaft 510 may rotate relative to the second fixing frame 330, or the second shaft 510 may be fixedly connected to the second fixing frame 330. With the above configuration, the second end 320b of the second rocker arm may slide relative to the second fixing frame 330 along the extending direction F4 of the second guide groove 324.

[0162] Furthermore, referring to Figure 12A, the second mounting bracket 330 may include a second mounting groove 332. The second mounting groove 332 may be located on the side of the second mounting bracket 330 near the second rocker arm 320. The second mounting groove 332 may communicate with the second sliding groove 232. The assembly hole on the second mounting bracket 330 for mounting the second shaft 510 may be provided in the groove wall of the second mounting groove 332 so that the second shaft 510 can be disposed in the second mounting groove 332.

[0163] Furthermore, at least a portion of the second swing arm 320 overlaps with the second fixed frame 330 along the first direction Z, and at least a portion of the second swing arm 320 also overlaps with the second fixed frame 330 along the second direction Y. For example, at least a portion of the second swing arm 320 is located within the second mounting groove 332, and at least a portion of the second swing arm 320 overlaps with the sidewall of the second mounting groove 332 in the first direction X and the second direction Y. This arrangement improves the assembly compactness between the second swing arm 320 and the second fixed frame 330, while avoiding excessive space occupied by the second swing arm 320 and the second fixed frame 330 in the third direction Z, thus facilitating the thinning of the second rotating shaft assembly 300.

[0164] Figure 14A is a cross-sectional view along the N2-N2 section line of the rotating mechanism in Figure 11 in the unfolded state; Figure 14B is a cross-sectional view along the N2-N2 section line of the rotating mechanism in Figure 11 in the folded state.

[0165] Referring to Figures 14A and 14B, the second guide groove 324 can be generally strip-shaped, and the extension direction F4 of the second guide groove 324 is also the extension direction of this strip-shaped groove. During the transition of the rotating mechanism from the unfolded state to the folded state, the second shaft 510 can slide relative to the second guide groove 324 along the extension direction F4 of the second guide groove 324. The second shaft 510 can rotate relative to the second guide groove 324, so that the second end 320b of the second rocker arm can rotate relative to the second fixed frame 330 through the second shaft 510 and the second guide groove 324.

[0166] In this embodiment, when the rotating mechanism is in the deployed state, the extension direction F4 of the second guide groove 324 can intersect with the support plane S. This embodiment does not specifically limit the angle between the extension direction F4 of the second guide groove 324 and the support plane S. In some embodiments, when the rotating mechanism is in the deployed state, the first fixed frame 230 and the second fixed frame 330 can constitute part of the support plane S. When the second end 320b of the second swing arm slides relative to the second fixed frame 330, the second end 320b of the second swing arm can have a certain movement component relative to the second fixed frame 330 in the direction perpendicular to the support surface of the second fixed frame 330 (i.e., the thickness direction of the second fixed frame 330).

[0167] Furthermore, when the rotating mechanism is in the deployed state, the projection of the extension direction F4 of the second guide groove 324 onto the support plane S can also be perpendicular to the projection of the second direction Y onto the support plane S. For example, the extension direction of the second fixed frame 330 (i.e., the first direction X) can also be perpendicular to the second direction Y. When the second end 320b of the second swing arm slides relative to the second fixed frame 330, the second end 320b of the second swing arm can have a certain component of movement relative to the second fixed frame 330 in the extension direction of the second fixed frame 330 (i.e., the length direction of the second fixed frame 330).

[0168] In summary, this helps to prevent the second end 320b of the second swing arm from moving relative to the second fixed frame 330 along the width direction (i.e., the second direction Y) of the second fixed frame 330, thereby reducing the space occupied by the second end 320b of the second swing arm in the width direction of the second fixed frame 330.

[0169] Furthermore, based on the same inventive concept, in some other embodiments, the first shaft 410 can be disposed at the second end 220b of the first swing arm, and the first guide groove 224 can be disposed at the first fixing frame 230, so that the second end 220b of the first swing arm and the first fixing frame 230 can be slidably connected through the first shaft 410 and the first guide groove 224; the second shaft 510 can be disposed at the second end 320b of the second swing arm, and the second guide groove 324 can be disposed at the second fixing frame 330, so that the second end 320b of the second swing arm and the second fixing frame 330 can be slidably connected through the second shaft 510 and the second guide groove 324.

[0170] Of course, the first swing arm 220 and the first fixed frame 230 can also be slidably connected by other connection methods, and the second swing arm 320 and the second fixed frame 330 can also be slidably connected by other connection methods. The specific structure and structural relationship of the first shaft 410, the first guide groove 224, the second shaft 510, and the second guide groove 324 are only illustrative examples of the inventive concept of this application and are not intended to limit the protection scope of this invention. The embodiments of this application do not limit this.

[0171] Figure 15A is an exploded view of the first pendulum rod 220, the first rotating member 210, the second pendulum rod 320, and the second rotating member 310 from a first perspective according to an embodiment of this application; Figure 15B is an exploded view of the first pendulum rod 220, the first rotating member 210, the second pendulum rod 320, and the second rotating member 310 from a second perspective according to an embodiment of this application. The second perspective can be a direction parallel to and opposite to the first perspective.

[0172] Referring to Figures 15A and 15B, the third end 210c and the fourth end 210d of the first rotating member are arranged along the first direction X. In the second reference plane parallel to the support plane S, the orthographic projections of the third end 210c of the first rotating member, the first end 220a of the first swing rod, and the second end 220b of the first swing rod on the second reference plane are arranged sequentially along the first direction X.

[0173] Furthermore, the first end 220a of the first rocker arm is rotatably connected to the first rotating member 210, which may include: the fourth end 210d of the first rotating member being rotatably connected to the first end 220a of the first rocker arm.

[0174] For example, since both the first rotating member 210 and the first swing arm 220 are three-dimensional structures, the third end 210c of the first rotating member, the first end 220a of the first swing arm, and the second end 220b of the first swing arm may have different heights in the third direction Z. The fourth end 210d of the first rotating member may have a first recess 219, and the first end 220a of the first swing arm may be installed in the first recess 219.

[0175] The above arrangement improves the assembly compactness between the first rotating member 210 and the first rocker arm 220 in the first direction X, and helps to reduce the size of the first rotating shaft assembly 200 in the first direction X. Simultaneously, assembling the first rotating member 210 and the first rocker arm 220 along the first direction X also reduces the size of the first rotating shaft assembly 200 in the third direction Z.

[0176] In some embodiments, the first end 220a of the first rocker arm is rotatably connected to the first rotating member 210, and may further include: the first end 220a of the first rocker arm and the first rotating member 210 may be rotatably connected via a third shaft 420 and a first mating hole 225. The first end 220a of the first rocker arm may include the first mating hole 225, and the third shaft 420 may be connected to the first rotating member 210.

[0177] For example, the fourth end 210d of the first rotating member may have a first recess 219, and the sidewall of the first recess 219 may be provided with a mounting hole. The first end 220a of the first rocker arm may be installed in the mounting hole of the first rotating member 210, and the third shaft 420 may rotate relative to the first rotating member 210, or the third shaft 420 may be fixedly connected to the first rotating member 210. With the above configuration, the first end 220a of the first rocker arm can rotate relative to the first rotating member 210 through the third shaft 420.

[0178] The extension direction of the central axis of the third axis 420 is the first axis L1. Referring to Figures 13A and 13B, the orthographic projection of the first axis L1 onto the supporting plane S intersects the orthographic projection of the extension direction F1 of the first groove 231 onto the supporting plane S. The orthographic projection of the first axis L1 onto the supporting plane S also intersects the orthographic projection of the first direction X onto the supporting plane S. This embodiment does not specifically limit the angle between the orthographic projection of the first axis L1 onto the supporting plane S and the orthographic projection of the extension direction F1 of the first groove 231 onto the supporting plane S, nor the angle between the orthographic projection of the first axis L1 onto the supporting plane S and the orthographic projection of the first direction X onto the supporting plane S. For example, the angle between the orthographic projection of the first axis L1 onto the supporting plane S and the orthographic projection of the extension direction F1 of the first groove 231 onto the supporting plane S can be acute, right, or obtuse, and the angle between the orthographic projection of the first axis L1 onto the supporting plane S and the orthographic projection of the first direction X onto the supporting plane S can also be acute, right, or obtuse.

[0179] In this embodiment, since the first end 220a of the first swing arm rotates relative to the first rotating member 210, and the first rotating member 210 also slides relative to the first fixed frame 230, the position of the first axis L1 relative to the first fixed frame 230 changes during the process of the rotating mechanism changing from the unfolded state to the folded state.

[0180] Similarly, in some embodiments, the third end 310c of the second rotating member and the fourth end 310d of the second rotating member are arranged along the first direction X. In the second reference plane parallel to the support plane S, the orthographic projections of the third end 310c of the second rotating member, the first end 320a of the second swing rod, and the second end 320b of the second swing rod on the second reference plane are arranged sequentially along the first direction X.

[0181] Furthermore, the first end 320a of the second rocker arm is rotatably connected to the second rotating member 310, which may include: the fourth end 310d of the second rotating member being rotatably connected to the first end 320a of the second rocker arm.

[0182] For example, since both the second rotating member 310 and the second swing arm 320 are three-dimensional structures, the third end 310c of the second rotating member, the first end 320a of the second swing arm, and the second end 320b of the second swing arm may have different heights in the third direction Z. The fourth end 310d of the second rotating member may have a second recess 319, and the first end 320a of the second swing arm may be installed in the second recess 319.

[0183] The above arrangement improves the assembly compactness between the second rotating member 310 and the second rocker arm 320 in the first direction X, and helps reduce the size of the second rotating shaft assembly 300 in the first direction X. Simultaneously, assembling the second rotating member 310 and the second rocker arm 320 along the first direction X also reduces the size of the second rotating shaft assembly 300 in the third direction Z.

[0184] In some embodiments, the first end 320a of the second rocker arm is rotatably connected to the second rotating member 310, and may further include: the first end 320a of the second rocker arm and the second rotating member 310 may be rotatably connected via a fourth shaft 520 and a second mating hole 325. Specifically, the first end 350a of the second rocker arm includes the second mating hole 325, and the fourth shaft 520 is connected to the second rotating member 310.

[0185] For example, the fourth end 310d of the second rotating member may have a second recess 319, the sidewall of which may have a mounting hole. The first end 320a of the second rocker arm may be installed in the mounting hole of the second rotating member 310, and the fourth shaft 520 may rotate relative to the second rotating member 310, or the fourth shaft 520 may be fixedly connected to the second rotating member 310. With the above configuration, the first end 320a of the second rocker arm can rotate relative to the second rotating member 310 via the fourth shaft 520.

[0186] The extension direction of the central axis of the fourth axis 520 is the second axis L2. Referring to Figures 14A and 14B, the orthographic projection of the second axis L2 onto the supporting plane S intersects with the orthographic projection of the extension direction of the second slide groove 331 onto the supporting plane S. The orthographic projection of the second axis L2 onto the supporting plane S also intersects with the orthographic projection of the first direction X onto the supporting plane S. This embodiment does not specifically limit the angle between the orthographic projection of the second axis L2 onto the supporting plane S and the orthographic projection of the extension direction F3 of the second slide groove 331 onto the supporting plane S, nor the angle between the orthographic projection of the second axis L2 onto the supporting plane S and the orthographic projection of the first direction X onto the supporting plane S. For example, the angle between the orthographic projection of the second axis L2 onto the supporting plane S and the orthographic projection of the extension direction F3 of the second slide groove 331 onto the supporting plane S can be acute, right, or obtuse, and the angle between the orthographic projection of the second axis L2 onto the supporting plane S and the orthographic projection of the first direction X onto the supporting plane S can also be acute, right, or obtuse.

[0187] In this embodiment, since the first end 320a of the second swing arm rotates relative to the second rotating member 310, and the second rotating member 310 also slides relative to the second fixed frame 330, the position of the second axis L2 relative to the second fixed frame 330 changes during the process of the rotating mechanism changing from the unfolded state to the folded state.

[0188] By providing the first swing arm 220, when the electronic device is in an unfolded or folded state, a strong constraint is formed between the first rotating member 210 and the first fixed frame 230 through the first swing arm 220. The positional relationship between the first rotating member 210 and the first fixed frame 230 is relatively stable, which helps to prevent the first rotating member 210 from rotating relative to the first fixed frame 230. Similarly, by providing the second swing arm 320, when the electronic device is in an unfolded or folded state, a strong constraint is formed between the second rotating member 310 and the second fixed frame 330 through the second swing arm 320. The positional relationship between the second rotating member 310 and the second fixed frame 330 is relatively stable, which helps to prevent the second rotating member 310 from rotating relative to the second fixed frame 330.

[0189] In summary, by setting the first swing arm 220 and the second swing arm 320, when the electronic device is in an unfolded or folded state, and the folded electronic device is subjected to an impact or falls, it helps to prevent the first rotating shaft assembly 200 or the second rotating shaft assembly 300 from rotating relative to the main shaft 100. This prevents the containment space enclosed by the first rotating shaft assembly 200, the second rotating shaft assembly 300, and the main shaft 100 from squeezing the flexible screen, thus improving the reliability of the flexible screen.

[0190] In addition, in some other embodiments, the first end 220a of the first rocker arm can also be slidably connected to the first rotating member 210, and the first end 220a of the first rocker arm can slide relative to the first rotating member 210 along the extension direction F2 of the first guide groove 224. The second end 220b of the first rocker arm can also be rotatably connected to the first fixed frame 230, and the rotation axis of the second end 220b of the first rocker arm relative to the first fixed frame 230 is the first axis L1.

[0191] Similarly, the first end 320a of the second rocker arm can also be slidably connected to the second rotating member 310. The first end 320a of the second rocker arm can slide relative to the second rotating member 310 along the extension direction F4 of the second guide groove 324. The second end 320b of the second rocker arm can also be rotatably connected to the second fixed frame 330. The rotation axis of the second end 320b of the second rocker arm relative to the second fixed frame 330 is the second axis L2.

[0192] Compared to slidingly connecting the first end 220a of the first rocker arm to the first rotating member 210, in this embodiment, the first end 220a of the first rocker arm is rotatably connected to the first rotating member 210. This avoids the first end 220a of the first rocker arm occupying too much space in the first rotating member 210, thereby helping to ensure the structural strength of the first rotating member 210. For example, in an embodiment where the first end 220a of the first rocker arm is installed in the first recess 219 of the first rotating member 210, it is beneficial to reduce the size of the first recess 219 of the first rotating member 210 along the first direction X.

[0193] Similarly, in this embodiment of the application, the first end 320a of the second swing arm is rotatably connected to the second rotating member 310, which also avoids the first end 320a of the second swing arm occupying too much space of the second rotating member 310, thereby helping to ensure the structural strength of the second rotating member 310.

[0194] In some embodiments, since the first end 220a of the first rocker arm is connected to the second end 210b of the first rotating member, the first end 220a of the first rocker arm can move relative to the first fixed frame 230 along with the second end 210b of the first rotating member. For example, the first end 220a of the first rocker arm can slide relative to the first fixed frame 230 along the extending direction of the first groove 231. The first end 220a of the first rocker arm can move relative to the main shaft 100 along with the second end 210b of the first rotating member. For example, the first end 220a of the first rocker arm can rotate relative to the main shaft 100.

[0195] Similarly, since the first end 320a of the second rocker arm is connected to the second end 310b of the second rotating member, the first end 320a of the second rocker arm can move relative to the second fixed frame 330 along with the second end 310b of the second rotating member. For example, the first end 320a of the second rocker arm can slide relative to the second fixed frame 330 along the extending direction of the second slide groove 331. The first end 320a of the second rocker arm can move relative to the main shaft 100 along with the second end 310b of the second rotating member. For example, the first end 320a of the second rocker arm can rotate relative to the main shaft 100. Continuing to refer to Figures 15A and 15B, in some embodiments, the extending direction of the first axis 410 is parallel to the first axis L1. Exemplarily, the extending direction of the first axis 410 can be parallel to the extending direction of the third axis 420. In a reference plane perpendicular to the first direction X, the angle between the orthographic projection of the first axis 410 and the orthographic projection of the third axis 420 can be 0. With the above settings, the space occupied by the first swing arm 220 is reduced in the thickness direction, which facilitates the thinning of the first rotating shaft assembly 200.

[0196] In some embodiments, the extension direction of the second axis 510 is parallel to the second axis L2. For example, the extension direction of the second axis 510 may be parallel to the extension direction of the fourth axis 520. In a reference plane perpendicular to the first direction X, the angle between the orthographic projection of the second axis 510 and the orthographic projection of the fourth axis 520 may be 0. With the above arrangement, in the thickness direction of the second swing arm 320, it is advantageous to reduce the space occupied by the second swing arm 320, facilitating the thinning of the second pivot assembly 300.

[0197] Figure 16A is a sectional view along section line BB of the rotating mechanism in Figure 4 in the unfolded state; Figure 16B is a sectional view along section line BB of the rotating mechanism in Figure 4 in the folded state; Figure 17A is a sectional view along section line CC of the rotating mechanism in Figure 4 in the unfolded state; Figure 17B is a sectional view along section line CC of the rotating mechanism in Figure 4 in the folded state.

[0198] In some embodiments, referring to FIG16A, when the rotating mechanism is in the deployed state: the first shaft 410 and the second shaft 510 can both be parallel to the support plane S. For example, the distance between the first end 410a of the first shaft and the main shaft 100 is less than the distance between the second end 410b of the first shaft and the main shaft 100; the direction from the first end 410a to the second end 410b of the first shaft is the extension direction of the first shaft 410. Similarly, the distance between the first end 510a of the second shaft and the main shaft 100 is less than the distance between the second end 510b of the second shaft and the main shaft 100; the direction from the first end 510a to the second end 510b of the second shaft is the extension direction of the second shaft 510.

[0199] With the above arrangement, in the direction perpendicular to the support plane S, it is beneficial to reduce the space occupied by the first shaft 410 and the second shaft 510, which in turn is beneficial to reduce the thickness of the first shaft assembly 200 and the second shaft assembly 300, and avoid the first shaft assembly 200 and the second shaft assembly 300 occupying a large space in the thickness direction.

[0200] Furthermore, referring to Figures 16A and 16B, the first axis 410 and the second axis 510 can both be perpendicular to the first direction X. This arrangement helps to reduce the space occupied by the first axis 410 and the second axis 510 in the first direction X, and also helps to reduce the dimensions of the first rocker arm 220 and the second rocker arm 320 in the first direction X.

[0201] In some embodiments, when the rotating mechanism is in the deployed state: the first axis L1 and the second axis L2 can both be parallel to the support plane S. Referring to Figure 17A, the third axis 420 and the fourth axis 520 can also be parallel to the support plane S. The distance between the first end 420a of the third axis and the main shaft 100 is less than the distance between the second end 420b of the third axis and the main shaft 100. The direction from the first end 420a to the second end 420b of the third axis is the extension direction of the third axis 420 (which is also the extension direction of the first axis L1). Similarly, the distance between the first end 520a of the fourth axis and the main shaft 100 is less than the distance between the second end 520b of the fourth axis and the main shaft 100. The direction from the first end 520a to the second end 520b of the fourth axis is the extension direction of the fourth axis 520 (which is also the extension direction of the second axis L2).

[0202] With the above settings, in the direction perpendicular to the support plane S, it is beneficial to reduce the space occupied by the third axis 420 and the fourth axis 520, which in turn is beneficial to reduce the thickness of the first rotating shaft assembly 200 and the second rotating shaft assembly 300, and avoid the first rotating shaft assembly 200 and the second rotating shaft assembly 300 occupying a large space in the thickness direction.

[0203] Furthermore, referring to Figures 17A and 17B, the first axis L1 and the second axis L2 can both be perpendicular to the first direction X. For example, the extension direction of the third axis 420 (which is also the extension direction of the first axis L1) can be perpendicular to the first direction X, and the extension direction of the third axis 420 can also be perpendicular to the second direction Y; the extension direction of the fourth axis 520 (which is also the extension direction of the second axis L2) can be perpendicular to the second direction Y, and the extension direction of the fourth axis 520 can also be perpendicular to the second direction Y. With the above arrangement, in the first direction X, it is beneficial to reduce the space occupied by the first axis 410 and the second axis 510, and also beneficial to reduce the dimensions of the first rocker arm 220 and the second rocker arm 320 in the first direction X.

[0204] In some embodiments, referring to FIG13A, when the rotating mechanism is in the unfolded state: in the first direction X, the distance between the first end 224a of the first guide groove and the first end 220a of the first swing rod can be greater than the distance between the second end 224b of the first guide groove and the first end 220a of the first swing rod; and in the direction perpendicular to the support plane S, the distance between the first end 224a of the first guide groove and the support plane S can be greater than the distance between the second end 224b of the first guide groove and the support plane S.

[0205] For example, the first guide groove 224 can be approximately strip-shaped, and the direction from the first end 224a to the second end 224b of the first guide groove is the extension direction F2 of the first guide groove 224. With the above arrangement, the extension direction F2 of the first guide groove 224 can intersect with the supporting plane S, and the extension direction F2 of the first guide groove 224 can also intersect with the first direction X.

[0206] Furthermore, through the above arrangement, the direction from the first end 224a of the first guide groove to the second end 224b of the first guide groove can approach the direction from the second end 220b of the first rocker arm to the first end 220a of the first rocker arm. This helps to reduce the space occupied by the first guide groove 224 at the second end 220b of the first rocker arm, thereby saving space occupied by the first rocker arm 220. Here and below, the direction A approaching the direction B can be understood as the direction A being parallel to the direction B, or the direction A being approximately parallel to the direction B. In some embodiments, referring to FIG13B, when the rotating mechanism is in the folded state: the direction from the first end 224a of the first guide groove to the second end 224b of the first guide groove can be parallel to the first direction X.

[0207] With the above configuration, when the rotating mechanism is in the folded state, the extension direction F2 of the first guide groove 224 is parallel to the first direction X, which helps to reduce the space occupied by the first guide groove 224 in the thickness direction of the first rotating shaft assembly 200, and facilitates the thinning of the first rotating shaft assembly 200. Further, referring to FIG12B, when the rotating mechanism is in the unfolded state: in the second direction Y, the distance between the third end 224c of the first guide groove and the main shaft 100 is greater than the distance between the fourth end 224d of the first guide groove and the main shaft 100.

[0208] During the transition between the unfolded and folded states of the rotating mechanism: the distance the second end 410b of the first shaft moves relative to the third end 224c of the first guide groove is equal to the distance the first end 410a of the first shaft moves relative to the fourth end 224d of the first guide groove. With this configuration, the orthographic projection of the movement direction of the first shaft 410 relative to the first guide groove 224 onto the support plane S is perpendicular to the orthographic projection of the second direction Y onto the support plane S. In other words, the orthographic projection of the second end 220b of the first rocker arm relative to the movement direction of the first fixed frame 230 onto the support plane S is perpendicular to the orthographic projection of the second direction Y onto the support plane S.

[0209] In some embodiments of this application, the dimensions of the third end 224c of the first guide groove are equal to the dimensions of the fourth end 224d of the first guide groove. Here, "the dimensions of the third end 224c of the first guide groove" or "the dimensions of the fourth end 224d of the first guide groove" refers to the cross-sectional dimensions perpendicular to the extension direction of the first guide groove 224.

[0210] For example, the direction from the third end 224c of the first guide groove to the fourth end 224d of the first guide groove can be parallel to the second direction Y. With the above setting, the sliding distance of the first shaft 410 relative to the third end 224c of the first guide groove is the same as the sliding distance of the first shaft 410 relative to the fourth end 224d of the first guide groove, so that the extension direction F2 of the first guide groove 224 is perpendicular to the second direction Y.

[0211] Furthermore, in the direction from the third end 224c of the first guide groove to the fourth end 224d of the first guide groove, the size of the first guide groove 224 can be equal everywhere, so that in the extension direction of the first shaft 410, the sliding distance of the first shaft 410 relative to the first guide groove 224 is equal everywhere.

[0212] Similarly, referring to FIG14A, when the rotating mechanism is in the unfolded state: in the first direction X, the distance between the first end 324a of the second guide groove and the first end 320a of the second swing rod can be greater than the distance between the second end 324b of the second guide groove and the first end 320a of the second swing rod; in the direction perpendicular to the support plane S, the distance between the first end 324a of the second guide groove and the support plane S can be greater than the distance between the second end 324b of the second guide groove and the support plane S.

[0213] For example, the second guide groove 324 can be approximately strip-shaped, and the direction from the first end 324a of the second guide groove to the second end 324b of the second guide groove is the extension direction F4 of the second guide groove 324. With the above arrangement, the extension direction F4 of the second guide groove 324 can intersect with the supporting plane S, and the extension direction F4 of the second guide groove 324 can also intersect with the first direction X.

[0214] Furthermore, the direction from the first end 324a of the second guide groove to the second end 324b of the second guide groove can also approximate the direction from the second end 320b of the second rocker arm to the first end 320a of the second rocker arm. This arrangement helps to reduce the space occupied by the second guide groove 324 at the second end 220b of the second rocker arm, thereby saving space occupied by the second rocker arm 320.

[0215] In some embodiments, when the rotating mechanism is in a folded state: the direction from the first end 324a of the second guide groove to the second end 324b of the second guide groove can be parallel to the first direction X.

[0216] With the above settings, when the rotating mechanism is in the folded state, the extension direction F2 of the first guide groove 224 is parallel to the first direction X, which helps to further reduce the space occupied by the second guide groove 324 in the thickness direction of the second rotating shaft assembly 300, and helps to achieve the thinning of the first rotating shaft assembly 200.

[0217] Further, referring to FIG12B, when the rotating mechanism is in the unfolded state: in the second direction Y, the distance between the third end 324c of the second guide groove and the main shaft 100 is greater than the distance between the fourth end 324d of the second guide groove and the main shaft 100.

[0218] During the transition between the unfolded and folded states of the rotating mechanism: the distance the second end 510b of the second shaft moves relative to the third end 324c of the second guide groove is equal to the distance the first end 510a of the second shaft moves relative to the fourth end 324d of the second guide groove. With this configuration, the orthographic projection of the movement direction of the second shaft 510 relative to the second guide groove 324 onto the support plane S is perpendicular to the orthographic projection of the second direction Y onto the support plane S. In other words, the orthographic projection of the movement direction of the second end 320b of the second rocker arm relative to the second fixed frame 330 onto the support plane S is perpendicular to the orthographic projection of the second direction Y onto the support plane S.

[0219] The dimensions of the third end 324c of the second guide groove are equal to the dimensions of the fourth end 324d of the second guide groove. Here, "the dimensions of the third end 324c of the second guide groove" or "the dimensions of the fourth end 324d of the second guide groove" refers to the cross-sectional dimensions perpendicular to the extension direction of the first guide groove 224.

[0220] For example, the direction from the third end 324c of the second guide groove to the fourth end 324d of the second guide groove can be parallel to the second direction Y. With the above arrangement, the sliding distance of the second shaft 510 relative to the third end 324c of the second guide groove is the same as the sliding distance of the second shaft 510 relative to the fourth end 324d of the second guide groove, so that the extension direction F4 of the second guide groove 324 is perpendicular to the second direction Y.

[0221] Furthermore, in the direction from the third end 324c of the second guide groove to the fourth end 324d of the second guide groove, the size of the second guide groove 324 can be equal everywhere, so that in the extension direction of the second shaft 510, the sliding distance of the second shaft 510 relative to the second guide groove 324 is equal everywhere.

[0222] As shown in Figures 13A and 13B, during the transition of the rotating mechanism from the unfolded state to the folded state, the first shaft 410 can move relative to the first guide groove 224 in the direction from the first end 224a of the first guide groove to the second end 224b of the first guide groove.

[0223] With the above configuration, during the transition of the rotating mechanism from the unfolded state to the folded state, the distance between the first end 220a of the first rocker arm and the first shaft 410 decreases, and the first end 220a of the first rocker arm moves relative to the first slide groove 231 along the direction from the second end 231b of the first slide groove to the first end 231a of the first slide groove. The first end 220a of the first rocker arm moves relative to the first slide groove 231 along with the second end 210b of the first rotating member, and the direction of movement is from the second end 231b of the first slide groove to the first end 231a of the first slide groove.

[0224] Conversely, during the transition of the rotating mechanism from a folded state to an unfolded state, the first shaft 410 can move relative to the first guide groove 224 in a direction from the second end 324b of the first guide groove to the first end 224a of the first guide groove. With this configuration, during the transition of the rotating mechanism from a folded state to an unfolded state, the distance between the first end 220a of the first rocker arm and the first shaft 410 increases, causing the first end 220a of the first rocker arm to move relative to the first slide groove 231 in a direction from the first end 231a of the first slide groove to the second end 231b of the first slide groove. The first end 220a of the first rocker arm moves relative to the first slide groove 231 along with the second end 210b of the first rotating member, and the direction of movement is from the first end 231a of the first slide groove to the second end 231b of the first slide groove.

[0225] As shown in Figures 14A and 14B, during the transition of the rotating mechanism from the unfolded state to the folded state, the second shaft 510 can move relative to the second guide groove 324 in the direction from the first end 324a of the second guide groove to the second end 324b of the second guide groove.

[0226] With the above configuration, during the transition of the rotating mechanism from the unfolded state to the folded state, the distance between the second end 320a of the second rocker arm and the second shaft 510 decreases, causing the first end 320a of the second rocker arm to move relative to the second slide groove 331 in the direction from the second end 331b of the second slide groove to the first end 331a of the second slide groove. The first end 320a of the second rocker arm moves relative to the second slide groove 331 along with the second end 310b of the second rotating member, and the direction of movement is from the second end 331b of the second slide groove to the first end 331a of the second slide groove.

[0227] Conversely, during the transition of the rotating mechanism from the folded state to the unfolded state, the second shaft 510 can move relative to the second guide groove 324 in the direction from the second end 324b of the second guide groove to the first end 324a of the second guide groove.

[0228] With the above configuration, during the transition of the rotating mechanism from the folded state to the unfolded state, the distance between the second end 320a of the second rocker arm and the second shaft 510 increases, causing the first end 320a of the second rocker arm to move relative to the second slide groove 331 in the direction from the first end 331a of the second slide groove to the second end 331b of the second slide groove. The first end 320a of the second rocker arm moves relative to the second slide groove 331 along with the second end 310b of the second rotating member, and the direction of movement is from the first end 331a of the second slide groove to the second end 331b of the second slide groove.

[0229] Of course, in some other embodiments, the shapes of the first guide groove 224 and the second guide groove 324 can also be other shapes, and this application does not specifically limit them. For example, the shapes of the first guide groove 224 and the second guide groove 324 can also include arc shapes.

[0230] Figure 18 is a structural diagram of a first and second swing arm switching between an unfolded state and a folded state according to an embodiment of this application. Referring to Figure 18, in some embodiments, when the rotating mechanism is in the unfolded state, in the direction perpendicular to the support plane S (i.e., the third direction Z), the distance between the first axis 410 and the support plane S is greater than the distance between the third axis 420 and the support plane S, and the distance between the first axis 410 and the third axis 420 is the first distance D1. The distance between the second axis 510 and the support plane S is greater than the distance between the fourth axis 520 and the support plane S, and the distance between the second axis 510 and the fourth axis 520 is the second distance D2.

[0231] During the transition between the unfolded and folded states of the rotating mechanism, the distance between the first shaft 410 and the third shaft 420 in the thickness direction of the first rotating shaft assembly 200 changes, and the distance between the second shaft 510 and the fourth shaft 520 in the thickness direction of the second rotating shaft assembly 300 changes.

[0232] Since both the first rotating shaft assembly 200 and the second rotating shaft assembly 300 rotate relative to the main shaft 100, the thickness directions of both the first rotating shaft assembly 200 and the second rotating shaft assembly 300 change during the transition between the unfolded and folded states of the rotating mechanism. In some examples, the thickness direction of the first rotating shaft assembly 200 may be perpendicular to the extension direction of the first shaft 410, and also perpendicular to the first direction X; similarly, the thickness direction of the second rotating shaft assembly 300 may be perpendicular to the extension direction of the second shaft 510, and also perpendicular to the first direction X. Furthermore, when the rotating mechanism is in the unfolded state, the thickness directions of both the first rotating shaft assembly 200 and the second rotating shaft assembly 300 may be perpendicular to the support plane S, for example, the third direction Z. When the rotating mechanism is in the folded state, the thickness directions of both the first rotating shaft assembly 200 and the second rotating shaft assembly 300 may be parallel to the support plane S, for example, the second direction Y.

[0233] In some embodiments, the thickness direction of the first rotating shaft assembly 200 may be perpendicular to the support surface of the first structural member 21, wherein the support surface of the first structural member 21 refers to the surface where the first structural member 21 is connected to the flexible screen. For example, the support surface of the first structural member 21 may be surface 2101 of the first structural member 21 in FIG. 1. The thickness direction of the second rotating shaft assembly 300 may be perpendicular to the support surface of the second structural member 22, wherein the support surface of the second structural member 22 refers to the surface where the second structural member 22 is connected to the flexible screen. For example, the support surface of the second structural member 22 may be surface 2201 of the second structural member 22 in FIG. 1. It can be understood that during the transition between the unfolded state and the folded state of the rotating mechanism, the thickness direction of the first rotating shaft assembly 200 is always perpendicular to the support surface of the first structural member 21, and the thickness direction of the second rotating shaft assembly 300 is always perpendicular to the support surface of the second structural member 22.

[0234] When the rotating mechanism is in the deployed state, the distance between the first shaft 410 and the third shaft 420 in the thickness direction of the first rotating shaft assembly 200 can be understood as the distance between the orthographic projections of the central axis of the first shaft 410 and the central axis of the third shaft 420 onto the plane containing the third direction Z and the second direction Y. The central axis of the third shaft 420 is the first axis L1.

[0235] When the rotating mechanism is in the deployed state, the distance between the second shaft 510 and the fourth shaft 520 in the thickness direction of the second rotating shaft assembly 300 can be understood as the distance between the orthogonal projections of the central axis of the second shaft 510 and the central axis of the fourth shaft 520 onto the plane containing the third direction Z and the second direction Y. The central axis of the fourth shaft 520 is the second axis L2.

[0236] During the transition of the rotating mechanism from the unfolded state to the folded state, in the thickness direction of the first rotating shaft assembly 200, the distance between the first shaft 410 and the third shaft 420 is less than the first distance D1, and in the thickness direction of the second rotating shaft assembly 300, the distance between the second shaft 510 and the fourth shaft 520 is less than the second distance D2.

[0237] When the rotating mechanism is in the folded state, in the thickness direction of the first rotating shaft assembly 200, the distance D3 between the first shaft 410 and the third shaft 420 is less than the first distance D1, and in the thickness direction of the second rotating shaft assembly 300, the distance D4 between the second shaft 510 and the fourth shaft 520 is less than the second distance D2.

[0238] When the rotating mechanism is in the folded state, the distance between the first shaft 410 and the third shaft 420 in the thickness direction of the first rotating shaft assembly 200 can be understood as the distance between the orthographic projections of the central axis of the first shaft 410 and the central axis of the third shaft 420 onto the plane containing the third direction Z and the second direction Y. The central axis of the third shaft 420 is the first axis L1.

[0239] When the rotating mechanism is in the folded state, the distance between the second shaft 510 and the fourth shaft 520 in the thickness direction of the second rotating shaft assembly 300 can be understood as the distance between the orthographic projections of the central axis of the second shaft 510 and the central axis of the fourth shaft 520 onto the plane containing the third direction Z and the second direction Y. The central axis of the fourth shaft 520 is the second axis L2.

[0240] With the above settings, during the transition of the rotating mechanism from the unfolded state to the folded state, the space occupied by the first axis 410 and the third axis 420 in the thickness direction of the first rotating shaft assembly 200 is reduced, and the space occupied by the second axis 510 and the fourth axis 520 in the thickness direction of the second rotating shaft assembly 300 is reduced, which is conducive to realizing the thinness and lightness of foldable electronic devices.

[0241] Furthermore, when the rotating mechanism is in the folded state, the first shaft 410 and the third shaft 420 can overlap at least partially in the first direction X, and the second shaft 510 and the fourth shaft 520 can overlap at least partially in the first direction X.

[0242] For example, when the rotating mechanism is in the folded state, the first shaft 410 and the third shaft 420 may both be perpendicular to the support surface of the main shaft 100, or the first shaft 410 and the third shaft 420 may both be parallel to the third direction Z. At least a portion of the first shaft 410 and at least a portion of the third shaft 420 overlap in the first direction X. The second shaft 510 and the fourth shaft 520 may both be perpendicular to the support surface of the main shaft 100, or the second shaft 510 and the fourth shaft 520 may both be parallel to the third direction Z. At least a portion of the second shaft 510 and at least a portion of the fourth shaft 520 overlap in the first direction X.

[0243] The support surface of the main shaft 100 can be, for example, the plane S9 indicated in Figure 17B. When the rotating mechanism is in the unfolded state, the support surface of the main shaft 100 is used to support the flexible screen.

[0244] The above configuration helps to reduce the space occupied by the first axis 410 and the third axis 420 in the thickness direction of the first rotating shaft assembly 200, and the space occupied by the second axis 510 and the fourth axis 520 in the thickness direction of the second rotating shaft assembly 300, which is conducive to achieving the thinning and lightening of foldable electronic devices.

[0245] In some examples, when the rotating mechanism is in the folded state, the central axis of the first shaft 410 (i.e., the first axis L1) can coincide with the orthographic projection of the central axis of the third shaft 420 in the plane containing the third direction Z and the second direction Y. The distance D3 between the first shaft 410 and the third shaft 420 in the thickness direction of the first rotating shaft assembly 200 can be 0.

[0246] Alternatively, the central axis of the third axis 420 (i.e., the first axis L1) can be located between the central axis of the first axis 410 and the flexible screen. Specifically, in the plane containing the third direction Z and the second direction Y, the orthographic projection of the central axis of the first axis 410 (i.e., the first axis L1) and the orthographic projection of the central axis of the third axis 420 may not coincide, and the distance D3 between the first axis 410 and the third axis 420 in the thickness direction of the first rotating shaft assembly 200 may not be zero.

[0247] With the above settings, during the transition of the rotating mechanism from the unfolded state to the folded state, the distance between the first shaft 410 and the third shaft 420 in the thickness direction of the first rotating shaft assembly 200 gradually decreases. This distance does not decrease to 0 and then gradually increase, which is beneficial to further reduce the space occupied by the first swing arm 220 in the thickness direction of the first rotating shaft assembly 200.

[0248] In some examples, when the rotating mechanism is in the folded state, the central axis of the fourth axis 520 (i.e., the second axis L2) can coincide with the orthographic projection of the central axis of the second axis 510 in the plane containing the third direction Z and the second direction Y. In the thickness direction of the second rotating shaft assembly 300, the distance D4 between the second axis 510 and the fourth axis 520 can be 0.

[0249] Alternatively, the central axis of the fourth axis 520 (i.e., the second axis L2) can be located between the central axis of the second axis 510 and the flexible screen. The orthographic projections of the central axes of the second axis 510 and the fourth axis 520 onto the plane containing the third direction Z and the second direction Y may not coincide, and the distance D4 between the second axis 510 and the fourth axis 520 in the thickness direction of the second rotating shaft assembly 300 may not be zero.

[0250] With the above settings, during the transition of the rotating mechanism from the unfolded state to the folded state, the distance between the second shaft 510 and the fourth shaft 520 in the thickness direction of the second rotating shaft assembly 300 gradually decreases. This distance does not decrease to 0 and then gradually increase, which is beneficial to further reduce the space occupied by the second swing arm 320 in the thickness direction of the second rotating shaft assembly 300.

[0251] Furthermore, in some other examples, referring to FIG18, when the rotating mechanism is in a folded state, in the plane containing the third direction Z and the second direction Y, the orthographic projection of the central axis of the third axis 420 (i.e., the first axis L1) can be located on the side where the orthographic projection of the central axis of the first axis 410 is opposite to the orthographic projection of the flexible screen, and the orthographic projection of the central axis of the fourth axis 520 (i.e., the second axis L2) can be located on the side where the orthographic projection of the central axis of the second axis 510 is opposite to the orthographic projection of the flexible screen.

[0252] With the above configuration, during the transition of the rotating mechanism from the unfolded state to the folded state, the distance between the first shaft 410 and the third shaft 420 in the thickness direction of the first rotating shaft assembly 200 will first decrease and then increase, and the distance between the second shaft 510 and the fourth shaft 520 in the thickness direction of the second rotating shaft assembly 300 will first decrease and then increase. However, when the rotating mechanism is in the folded state, since the distance between the first shaft 410 and the third shaft 420 and the distance between the second shaft 510 and the fourth shaft 520 are both small, it is beneficial to reduce the space occupied by the first rocker arm 220 in the thickness direction of the first rotating shaft assembly 200 and the space occupied by the second rocker arm 320 in the thickness direction of the second rotating shaft assembly 300.

[0253] Figure 19A is a structural diagram of a first swing arm and a first rotating member in an unfolded state according to an embodiment of this application; Figure 19B is a structural diagram of a first swing arm and a first rotating member in a folded state according to an embodiment of this application; Figure 20A is a structural diagram of a second swing arm and a second rotating member in an unfolded state according to an embodiment of this application; Figure 20B is a structural diagram of a second swing arm and a second rotating member in a folded state according to an embodiment of this application.

[0254] Referring to Figures 19A to 20B, in some embodiments, the first end 220a of the first rocker arm can slide relative to the first rotating member 210 along the extension direction of the first axis L1, and the first end 320a of the second rocker arm can slide relative to the second rotating member 310 along the extension direction of the second axis L2.

[0255] The second end 220b of the first swing arm can be disposed within the first mounting groove 232 of the first fixed frame 230. In the extension direction of the first axis L1, the dimension of the second end 220b of the first swing arm can be equal to the dimension of the first mounting groove 232, so that there is no space for relative sliding between the second end 220b of the first swing arm and the first fixed frame 230 in the extension direction of the first axis L1, and the second end 220b of the first swing arm and the first fixed frame 230 move synchronously in the extension direction of the first axis L1. This arrangement also helps to improve the assembly compactness between the second end 220b of the first swing arm and the first fixed frame 230.

[0256] Similarly, in the extension direction of the second axis L2, the size of the second end 320b of the second rocker arm can be equal to the size of the second mounting slot 332, and the second end 320b of the second rocker arm and the second fixing bracket 330 move synchronously in the extension direction of the second axis L2. This arrangement also helps to improve the assembly compactness between the second end 320b of the second rocker arm and the second fixing bracket 330.

[0257] Referring to Figures 17A and 17B, since the extension direction F1 of the first slide groove 231 has a component along the extension direction of the first axis L1, when the first fixed frame 230 slides relative to the first rotating member 210 along the extension direction F1 of the first slide groove 231, the first fixed frame 230 also has a sliding component relative to the first rotating member 210 along the extension direction of the first axis L1, so that the first end 220a of the first rocker arm can slide relative to the first rotating member 210 along the extension direction of the first axis L1.

[0258] Similarly, since the extension direction F2 of the first guide groove 224 has a component along the extension direction of the second axis L2, when the second fixed frame 330 slides relative to the second rotating member 310 along the extension direction F2 of the first guide groove 224, the second fixed frame 330 also has a sliding component relative to the second rotating member 310 along the extension direction of the second axis L2, so that the first end 320a of the second rocker arm can also slide relative to the second rotating member 310 along the extension direction of the second axis L2.

[0259] With the above configuration, during the transition between the unfolded and folded states of the rotating mechanism, the first rocker arm 220 and the first fixed frame 230 can both slide relative to the first rotating member 210, and the second rocker arm 320 and the second fixed frame 330 can both slide relative to the second rotating member 310, thereby improving the smoothness of the rotating mechanism's movement.

[0260] Referring to Figures 15A and 15B, in this embodiment of the application, the first end 220a of the first rocker arm slides relative to the first rotating member 210 along the extension direction of the first axis L1, which may include: the first end 220a of the first rocker arm slides relative to the first rotating member 210 through the third shaft 420 and the first mating hole 225.

[0261] Referring to Figures 19A and 19B, by way of example, the first end 220a of the first rocker arm is mounted in the first recess 219 of the first rotating member 210 via the third shaft 420. In the extension direction of the first axis L1, the size of the first recess 219 can be larger than the size of the first end 220a of the first rocker arm, so that there is a certain relative sliding space between the first rotating member 210 and the first end 220a of the first rocker arm.

[0262] The size of the first recess can be the distance between the first sidewall 219a and the second sidewall 219b of the first recess. When the rotating mechanism is in the unfolded state, the second sidewall 219b of the first recess, the first sidewall 219a of the first recess, and the main shaft are arranged sequentially along the second direction Y.

[0263] Referring to Figures 15A and 15B, in this embodiment of the application, the first end 320a of the second rocker arm slides relative to the second rotating member 310 along the extension direction of the second axis L2, which may include: the first end 350a of the second rocker arm slides relative to the second rotating member 310 through the fourth shaft 520 and the second mating hole 325.

[0264] Referring to Figures 20A and 20B, by way of example, the second end 320b of the second rocker arm is mounted in the second recess 319 of the second rotating member 310 via the fourth shaft 520. In the extension direction of the second axis L2, the size of the second recess 319 can be larger than the size of the first end 320a of the second rocker arm, so that there is a certain relative sliding space between the second rotating member 310 and the first end 320a of the second rocker arm.

[0265] The size of the second recess can be the distance between the first sidewall 319a and the second sidewall 319b of the second recess. When the rotating mechanism is in the unfolded state, the main shaft, the first sidewall 319a of the second recess, the second sidewall 319b of the second recess, and the second sidewall 319b are arranged in sequence along the second direction Y.

[0266] With the above configuration, the first rotating member 210 can slide relative to the first end 220a of the first rocker arm, and the second rotating member 310 can slide relative to the first end 320a of the second rocker arm.

[0267] Referring to Figures 19A and 19B, during the transition of the rotating mechanism from the unfolded state to the folded state, the first end 220a of the first rocker arm moves relative to the first rotating member 210 along a direction parallel to the first axis L1 and pointing from the main shaft 100 towards the first fixed frame 230.

[0268] When the rotating mechanism is in the unfolded state: in the second direction Y, the distance between the first end 420a of the third shaft and the main shaft 100 is less than the distance between the second end 420b of the third shaft and the main shaft 100.

[0269] During the transition of the rotating mechanism from the unfolded state to the folded state, the first end 220a of the first rocker arm moves relative to the first rotating member 210 in the direction from the first end 420a of the third axis to the second end 420b of the third axis.

[0270] During the transition of the rotating mechanism from the folded state to the unfolded state, the first end 220a of the first rocker arm moves relative to the first rotating member 210 in the direction from the second end 420b of the third axis to the first end 420a of the third axis.

[0271] When the rotating mechanism is in the unfolded state, the first end 220a of the first rocker arm contacts the first sidewall 219a of the first recess, and a gap Q1 exists between the first end 220a of the first rocker arm and the second sidewall 219b of the first recess. When the rotating mechanism is in the folded state, the first end 220a of the first rocker arm contacts the second sidewall 219b of the first recess, and a gap Q2 exists between the first end 220a of the first rocker arm and the first sidewall 219a of the first recess.

[0272] With the above settings, when the rotating mechanism is transitioning from the unfolded state to the folded state, the first rocker arm 220 slides away from the main shaft 100 relative to the first rotating member 210. Correspondingly, when the rotating mechanism is transitioning from the folded state to the unfolded state, the first rocker arm 220 slides closer to the main shaft 100 relative to the first rotating member 210.

[0273] Referring to Figures 20A and 20B, during the transition of the rotating mechanism from the unfolded state to the folded state, the first end 320a of the second swing arm moves relative to the second rotating member 310 along a direction parallel to the second axis L2 and from the main shaft 100 toward the second fixed frame 330.

[0274] When the rotating mechanism is in the unfolded state: in the second direction Y, the distance between the first end 520a of the fourth shaft and the main shaft 100 is less than the distance between the second end 520b of the fourth shaft and the main shaft 100.

[0275] During the transition of the rotating mechanism from the unfolded state to the folded state, the first end 320a of the second rocker arm moves relative to the second rotating member 310 in the direction from the first end 520a of the fourth axis to the second end 520b of the fourth axis.

[0276] During the transition of the rotating mechanism from the folded state to the unfolded state, the first end 320a of the second rocker arm moves relative to the second rotating member 310 in the direction of the first end 520a of the fourth axis pointing to the first end 520a of the fourth axis.

[0277] When the rotating mechanism is in the unfolded state, the first end 320a of the second rocker arm contacts the first sidewall 319a of the second recess, and there is a gap Q3 between the first end 320a of the second rocker arm and the second sidewall 319b of the second recess.

[0278] When the rotating mechanism is in the folded state, the first end 320a of the second rocker arm contacts the second sidewall 319b of the second recess, and there is a gap Q4 between the first end 320a of the second rocker arm and the first sidewall 319a of the second recess.

[0279] With the above configuration, when the rotating mechanism transitions from an unfolded state to a folded state, the second rocker arm 320 slides away from the main shaft 100 relative to the second rotating member 310. Correspondingly, when the rotating mechanism transitions from a folded state to an unfolded state, the second rocker arm 320 slides closer to the main shaft 100 relative to the second rotating member 310.

[0280] In some embodiments, as shown in Figures 15A and 15B, the first rotating member 210 may include a first helical surface 218, and the first end 220a of the first rocker arm includes a second helical surface 228 that mates with the first helical surface 218. The first helical surface 218 and the second helical surface 228 have the same direction of rotation. The second rotating member 310 includes a third helical surface 318, and the first end 320a of the second rocker arm includes a fourth helical surface 328 that mates with the third helical surface 318. The third helical surface 318 and the fourth helical surface 328 have the same direction of rotation, and the third helical surface 318 and the first helical surface 218 have opposite directions of rotation.

[0281] The embodiments of this application do not limit the number of the first helical surface 218, the second helical surface 228, the third helical surface 318, and the fourth helical surface 328, as long as the number of mutually cooperating helical surfaces is the same.

[0282] For example, there can be two first helical surfaces 218 and two helical surfaces 228. The first helical surface 218 may include a first sub-surface 218a and a second sub-surface 218b, which may be located on two opposite sidewalls of the first recess 219 of the first rotating member 210, and the first sub-surface 218a and the second sub-surface 218b are arranged sequentially along the extension direction of the first axis L1.

[0283] Correspondingly, the second helical surface 228 may include a third sub-surface 228a and a fourth sub-surface 228b. The third sub-surface 228a and the fourth sub-surface 228b may be located on the two sidewalls of the first rocker arm 220 facing the first recess 219, and the third sub-surface 228a and the fourth sub-surface 228b are also arranged sequentially along the extension direction of the first axis L1. Among them, the first sub-surface 218a mates with the third sub-surface 228a, and the second sub-surface 218b mates with the fourth sub-surface 228b.

[0284] Similarly, there can be two third helical surfaces 318 and two fourth helical surfaces 328. The third helical surface 318 may include a fifth sub-surface 318a and a sixth sub-surface 318b, which may be located on two opposite sidewalls of the second recess 319 of the second rotating member 310, and the fifth sub-surface 318a and the sixth sub-surface 318b are arranged sequentially along the extension direction of the second axis L2.

[0285] Correspondingly, the fourth helical surface 328 may include a seventh sub-surface 328a and an eighth sub-surface 328b. The seventh sub-surface 328a and the eighth sub-surface 328b may be located on the two sidewalls of the second rocker arm 320 facing the second recess 319, and the seventh sub-surface 328a and the eighth sub-surface 328b are also arranged sequentially along the extension direction of the second axis L2. Among them, the fifth sub-surface 318a and the seventh sub-surface 328a are engaged, and the sixth sub-surface 318b and the eighth sub-surface 328b are engaged.

[0286] During the transition between the unfolded and folded states of the rotating mechanism, as the first end 220a of the first rocker arm rotates relative to the first rotating member 210, it also slides relative to the first rotating member 210, causing the first end 220a of the first rocker arm to helically move relative to the first rotating member 210. Similarly, the first end 320a of the second rocker arm helically moves relative to the second rotating member 310.

[0287] Through the above configuration, the cooperation of the first helical surface 218 and the second helical surface 228 prevents a large relative sliding space between the first end 220a of the first rocker arm and the first rotating member 210; the cooperation of the third helical surface 318 and the fourth helical surface 328 prevents a large relative sliding space between the first end 320a of the second rocker arm and the second rotating member 310. This further prevents the first end 220a of the first rocker arm from wobbling relative to the first rotating member 210, and the first end 320a of the second rocker arm from wobbling relative to the second rotating member 310, when the rotating mechanism is subjected to an impact.

[0288] During the transition between the folded and unfolded states of the rotating mechanism, the distance between the first helical surface 218 and the second helical surface 228 can remain unchanged; the distance between the third helical surface 318 and the fourth helical surface 328 can also remain unchanged.

[0289] For example, when the first helical surface 218 and the second helical surface 228 are in contact, and the third helical surface 318 and the fourth helical surface 328 are in contact, during the transition of the rotating mechanism between the folded state and the unfolded state, the distance between the first helical surface 218 and the second helical surface 228 is 0. For example, the distance between the first sub-surface 218a and the third sub-surface 228a is 0, and the distance between the second sub-surface 218b and the fourth sub-surface 228b is 0. The distance between the third helical surface 318 and the fourth helical surface 328 is 0. For example, the distance between the fifth sub-surface 318a and the seventh sub-surface 328a is 0, and the distance between the sixth sub-surface 318b and the eighth sub-surface 328b is 0.

[0290] Alternatively, a small gap may exist between the first helical surface 218 and the second helical surface 228, and a small gap may exist between the third helical surface 318 and the fourth helical surface 328. During the transition between the folded and unfolded states of the rotating mechanism, the distance between the first helical surface 218 and the second helical surface 228 is not zero. For example, the distance between the first sub-surface 218a and the third sub-surface 228a is not zero, and the distance between the second sub-surface 218b and the fourth sub-surface 228b is not zero. Similarly, the distance between the third helical surface 318 and the fourth helical surface 328 is not zero. For example, the distance between the fifth sub-surface 318a and the seventh sub-surface 328a is not zero, and the distance between the sixth sub-surface 318b and the eighth sub-surface 328b is not zero.

[0291] The above configuration helps to further prevent the first end 220a of the first rocker arm from wobbling relative to the first rotating member 210 and the first end 320a of the second rocker arm from wobbling relative to the second rotating member 310 when the rotating mechanism is subjected to an impact.

[0292] In addition, in some other embodiments, the second end 220b of the first rocker arm can slide relative to the first fixed frame 230 along the extension direction of the first axis 410, and the second end 320b of the second rocker arm can slide relative to the second fixed frame 330 along the extension direction of the second axis 510.

[0293] For example, in the extending direction of the first axis L1, the size of the first recess 219 can be equal to the size of the first end 220a of the first rocker arm, so that there is no space for relative sliding between the first end 220a of the first rocker arm and the first rotating member 210 in the extending direction of the first axis L1, and the first end 220a of the first rocker arm and the first rotating member 210 move synchronously in the extending direction of the first axis L1. In the extending direction of the first shaft 410, the size of the first mounting groove 232 can be larger than the size of the second end 220b of the first rocker arm, so that there is space for relative sliding between the second end 220b of the first rocker arm and the first fixing bracket 230 in the extending direction of the first shaft 410. Similarly, the first end 220a of the first rocker arm and the second end 320b of the second rocker arm can also be configured in this way, which will not be described in detail here.

[0294] Figure 21 is a front view of a first rotating member and a second rotating member provided in an embodiment of this application; Figure 22 is a partial enlarged view of N3 of the first support plate and the second support plate in Figure 6.

[0295] In some embodiments, as shown in FIG6, FIG21 and FIG22, the first rotating shaft assembly 200 may further include a first support plate 240, the first support plate 240 and the first rotating member 210 may be slidably connected, and the first support plate 240 may also be rotatably connected to the first fixing frame 230.

[0296] When the rotating mechanism is in the deployed state, the first support plate 240 can overlap with the first swing arm 220 in the third direction Z. For example, the first support plate 240 can be located on the side of the first swing arm 220 facing the support plane S. The first support plate 240 can also be located on the side of the first rotating member 210 and the first fixing frame 230 facing the flexible screen. This arrangement improves the compactness of the first support plate 240 within the first rotating shaft assembly 200, which is beneficial for achieving a thinner and lighter first rotating shaft assembly 200.

[0297] In some embodiments, the first rotating shaft assembly 200 may further include a second support plate 340, the second support plate 340 and the second rotating member 310 may be slidably connected, and the second support plate 340 may also be rotatably connected to the second fixing frame 330.

[0298] When the rotating mechanism is in the deployed state, the second support plate 340 can overlap with the second swing arm 320 in the third direction Z. For example, the second support plate 340 is located on the side of the second swing arm 320 closest to the support plane S. For example, the second support plate 340 can be located on the side of the second rotating member 310 and the second fixing frame 330 closest to the flexible screen. This arrangement improves the compactness of the second support plate 340 within the second rotating shaft assembly 300, facilitating the thinning and lightening of the second rotating shaft assembly 300.

[0299] With the above settings, the rotation mechanism can change the position of the first support plate 240 and the second support plate 340 relative to the main shaft 100 during the transition between the unfolded state and the folded state.

[0300] Figure 23A is a cross-sectional view along the DD section line of the rotating mechanism in Figure 4 in the unfolded state; Figure 23B is a cross-sectional view along the DD section line of the rotating mechanism in Figure 4 in the folded state.

[0301] Referring to Figure 23A, when the rotating mechanism is in the unfolded state, the first rotating shaft assembly 200, the main shaft 100, and the second rotating shaft assembly 300 together form the support plane S, including: the first support plate 240, the first fixing frame 230, the main shaft 100, the second support plate 340, and the second fixing frame 330 together form the support plane S.

[0302] The first support plate 240, the first fixing frame 230 and the first rotating component 210 together constitute at least a portion of the support surface of the first rotating shaft assembly 200, and the second support plate 340, the second fixing frame 330 and the second rotating component 310 together constitute at least a portion of the support surface of the second rotating shaft assembly 300.

[0303] For example, the first support plate 240 can be stacked with a portion of the first fixing frame 230 along the third direction Z, and the first support plate 240 can also be stacked with a portion of the first rotating member 210 along the third direction Z. Similarly, the second support plate 340 can be stacked with a portion of the second fixing frame 330 along the third direction Z, and the second support plate 340 can also be stacked with a portion of the second rotating member 310 along the third direction Z. This arrangement improves the support effect of the first rotating shaft assembly 200 and the second rotating shaft assembly 300 on the flexible screen.

[0304] Referring to Figure 23B, when the rotating mechanism is in the folded state, the minimum distance between the support surfaces of the first support plate 240 and the second support plate 340 along the second direction Y is greater than or equal to the distance between the support surfaces of the first fixing frame 230 and the second fixing frame 330 along the second direction Y.

[0305] For example, along the second direction Y, the distance between the end of the support surface of the first support plate 240 near the first fixing frame 230 and the end of the support surface of the second support plate 340 near the second fixing frame 330 can be minimized. This arrangement helps to increase the storage space for accommodating the flexible screen.

[0306] When the rotating mechanism is in the folded state, the distance between the support surfaces of the first support plate 240 and the second support plate 340 along the second direction Y gradually increases in the direction close to the main shaft 100. For example, the flexible screen can be bent into a teardrop shape or a near-teardrop shape within the screen-containing space P enclosed by the first fixing frame 230, the second fixing frame 330, the first support plate 240, the second support plate 340, the first rotating member 210, the second rotating member 310, and the main shaft 100. This arrangement avoids excessive compression of the flexible screen, thereby reducing its stress and improving its reliability.

[0307] In some embodiments, as shown in Figures 21 and 22, the first support plate 240 and the first rotating member 210 are slidably connected by a first mating shaft 216 and a third guide groove 213, wherein the extending direction of the first mating shaft 216 is parallel to the first direction X. The first rotating member 210 may include the first mating shaft 216, and the first support plate 240 may include the third guide groove 213.

[0308] The second support plate 340 and the second rotating member 310 can be slidably connected by the second mating shaft 316 and the fourth guide groove 313. The extension direction of the second mating shaft 316 is parallel to the first direction X. The second rotating member 310 may include the second mating shaft 316, and the second support plate 340 may include the fourth guide groove 313.

[0309] For example, the first mating shaft 216 may pass through the third guide groove 213. With the above arrangement, when the first mating shaft 216 moves along the extension direction of the third guide groove 213, the first support plate 240 and the first rotating member 210 slide relative to each other.

[0310] The second mating shaft 316 can be inserted into the fourth guide groove 313. With the above arrangement, when the second mating shaft 316 moves along the extension direction of the fourth guide groove 313, the second support plate 340 and the second rotating member 310 slide relative to each other.

[0311] In some embodiments, the first mating shaft 216 may be fixedly connected to the first rotating member 210, or the first mating shaft 216 may also be rotatably connected to the first rotating member 210. Similarly, the second mating shaft 316 may be fixedly connected to the second rotating member 310, or the second mating shaft 316 may also be rotatably connected to the second rotating member 310.

[0312] In this embodiment, the first mating shaft 216 and the first rotating member 210 can be integrally formed, and the second mating shaft 316 and the second rotating member 310 can also be integrally formed. To improve the strength of the first mating shaft 216 and the second mating shaft 316, the first mating shaft 216 and the second mating shaft 316 can be reinforced.

[0313] For example, referring to Figures 21 and 23A, when the rotating mechanism is in the deployed state: the distance between the first end 216a of the first mating shaft and the main shaft 100 is less than the distance between the second end 216b of the first mating shaft and the main shaft 100, and the distance between the first end 216a of the first mating shaft and the supporting plane S is greater than the distance between the second end 216b of the first mating shaft and the supporting plane S. Similarly, the distance between the first end 316a of the second mating shaft and the main shaft 100 is less than the distance between the second end 316b of the second mating shaft and the main shaft 100, and the distance between the first end 316a of the second mating shaft and the supporting plane S is greater than the distance between the second end 316b of the second mating shaft and the supporting plane S.

[0314] For example, the first mating shaft 216 and the second mating shaft 316 can be generally strip-shaped. In the second direction Y, the first mating shaft 216 can be inclined away from the support surface of the first support plate 240, and the second mating shaft 316 can be inclined towards the support surface of the second support plate 340.

[0315] Furthermore, in the plane containing the third direction Z and the second direction Y, the cross-sectional area of ​​the first end 216a of the first mating shaft can be smaller than the cross-sectional area of ​​the second end 216b of the first mating shaft; in the plane containing the third direction Z and the second direction Y, the cross-sectional area of ​​the first end 316a of the second mating shaft can be smaller than the cross-sectional area of ​​the second end 316b of the second mating shaft.

[0316] With the above configuration, compared to setting the first mating shaft 216 and the second mating shaft 316 as round shafts, it is beneficial to increase the size of the first mating shaft 216 and the second mating shaft 316 in the direction perpendicular to the axis of the mating shaft, thereby improving the strength of the first mating shaft 216 and the second mating shaft 316.

[0317] In some embodiments, referring to FIG23A, when the rotating mechanism is in the unfolded state: the distance between the first end 213a of the third guide groove and the main shaft 100 is less than the distance between the second end 213b of the third guide groove and the main shaft 100, and the distance between the first end 213a of the third guide groove and the support surface of the first support plate 240 is greater than the distance between the second end 213b of the third guide groove and the support surface of the first support plate 240.

[0318] For example, the direction from the first end 213a of the third guide groove to the second end 213b of the third guide groove can be parallel to the direction from the first end 216a of the first mating shaft to the second end 216b of the first mating shaft. This is beneficial for increasing the contact area between the third guide groove 213 and the first mating shaft 216, which helps to reduce the stress intensity on the first mating shaft 216 and improve the strength and reliability of the first mating shaft 216.

[0319] The distance between the first end 313a of the fourth guide groove and the main shaft 100 is less than the distance between the second end 313b of the fourth guide groove and the main shaft 100, and the distance between the first end 313a of the fourth guide groove and the support surface of the second support plate 340 is greater than the distance between the second end 313b of the fourth guide groove and the support surface of the second support plate 340.

[0320] For example, the direction from the first end 313a of the fourth guide groove to the second end 313b of the fourth guide groove can be parallel to the direction from the first end 316a of the second mating shaft to the second end 316b of the second mating shaft. This is beneficial for increasing the contact area between the fourth guide groove 313 and the second mating shaft 316, which helps to reduce the stress intensity on the second mating shaft 316 and improve the strength and reliability of the second mating shaft 316.

[0321] As shown in Figures 23A and 23B, during the transition of the rotating mechanism from the unfolded state to the folded state, the first mating shaft 216 moves relative to the third guide groove 213 in the direction from the second end 213b of the third guide groove to the first end 213a of the third guide groove, and the second mating shaft 316 moves relative to the fourth guide groove 313 in the direction from the second end 313b of the fourth guide groove to the first end 313a of the fourth guide groove.

[0322] During the transition of the rotating mechanism from the folded state to the unfolded state, the first mating shaft 216 moves relative to the third guide groove 213 in the direction from the first end 213a of the third guide groove to the second end 213b of the third guide groove, and the second mating shaft 316 moves relative to the fourth guide groove 313 in the direction from the first end 313a of the fourth guide groove to the second end 313b of the fourth guide groove.

[0323] The above arrangement allows the first support plate 240 and the second support plate 340 to form part of the support surface of the first rotating shaft assembly 200 and the second rotating shaft assembly 300, respectively, when the rotating mechanism is in the unfolded state. It also allows the distance between the support surfaces of the first support plate 240 and the second support plate 340 along the second direction Y to gradually increase towards the main shaft 100 when the rotating mechanism is in the folded state, so that the first rotating shaft assembly 200, the main shaft 100, and the second rotating shaft assembly 300 together enclose a teardrop-shaped or approximately teardrop-shaped receiving space.

[0324] In some other examples, the shapes of the third guide groove 213 and the fourth guide groove 313 may also be other shapes, such as straight lines, which are not limited in this application embodiment.

[0325] In addition, in some other embodiments, the first rotating member 210 may further include a third guide groove 213, and the first support plate 240 may include a first mating shaft 216, so that the first support plate 240 and the first rotating member 210 are slidably connected through the first mating shaft 216 and the third guide groove 213; the second rotating member 310 may include a fourth guide groove 313, and the second support plate 340 may include a second mating shaft 316, so that the second support plate 340 and the second rotating member 310 are slidably connected through the second mating shaft 316 and the fourth guide groove 313. The guide groove may be linear.

[0326] In other embodiments, the first support plate 240 and the first rotating member 210 can be slidably connected via a virtual axis. Similarly, the second support plate 340 and the second rotating member 310 can also be slidably connected in other ways, and this application does not limit this to any particular method.

[0327] Figure 24A is a sectional view along the EE section line of the rotating mechanism in Figure 4 in the unfolded state; Figure 24B is a sectional view along the EE section line of the rotating mechanism in Figure 4 in the unfolded state.

[0328] In some embodiments, referring to FIG5 and in conjunction with FIG24A and FIG24B, the first support plate 240 and the first fixing frame 230 can be rotatably connected by the third arc-shaped slider 241 and the third arc-shaped slide groove 231, wherein the first support plate 240 may include the third arc-shaped slider 241 and the first fixing frame 230 may include the third arc-shaped slide groove 231.

[0329] For example, the third arc-shaped slider 241 can be slidably connected to the third arc-shaped groove 231, so that the first support plate 240 and the first fixed frame 230 can be rotatably connected through a virtual axis connection, which helps to improve the assembly compactness of the first support plate 240 and the first fixed frame 230, and thus helps to reduce the size of the rotating mechanism. At the same time, the rotation axis of the first support plate 240 relative to the first fixed frame 230 can be parallel to the first direction X.

[0330] The second support plate 340 and the second fixing frame 330 can be rotatably connected by the fourth arc-shaped slider 341 and the fourth arc-shaped slide groove 331. The second support plate 340 may include the fourth arc-shaped slider 341, and the second fixing frame 330 may include the fourth arc-shaped slide groove 331.

[0331] For example, the fourth arc-shaped slider 341 can be slidably connected to the fourth arc-shaped groove 331, so that the second support plate 340 and the second fixed frame 330 can be rotatably connected through a virtual axis connection, which helps to improve the assembly compactness of the second support plate 340 and the second fixed frame 330, and thus helps to reduce the size of the rotating mechanism. At the same time, the rotation axis of the second support plate 340 relative to the second fixed frame 330 can be parallel to the first direction X.

[0332] In other embodiments, the first support plate 240 may include a third arc-shaped groove 231, and the first fixing frame 230 may include a third arc-shaped slider 241; the second support plate 340 may include a fourth arc-shaped groove 331, and the second fixing frame 330 may include a fourth arc-shaped slider 341. Figure 25 is a structural diagram of a first swing arm and a second swing arm provided in an embodiment of this application; Figure 26 is a structural diagram of another first swing arm and a second swing arm provided in an embodiment of this application.

[0333] In some embodiments, referring to Figures 25 and 26, and in conjunction with Figure 6, the first rotating shaft assembly 200 may further include a first swing arm 250. The first end 250a of the first swing arm may be rotatably connected to the main shaft 100. The rotation axis of the first swing arm 250 relative to the main shaft 100 is parallel to the first direction X. The second end 250b of the first swing arm may be slidably connected to the first fixed frame 230. The sliding direction of the first swing arm 250 relative to the first fixed frame 230 intersects the length extension direction of the first fixed frame 230 (i.e., the first direction X). The sliding direction of the first swing arm 250 relative to the first fixed frame 230 also intersects the extension direction F1 of the first slide groove 231.

[0334] For example, the first fixing frame 230 may include a third slide groove 235, the extension direction of which may be perpendicular to the extension direction of the first fixing frame 230, and the extension direction of the third slide groove 235 may also be parallel to the support surface of the first fixing frame 230. The extension directions of the third slide groove 235 and the extension directions of the first slide groove 231 intersect in the orthographic projection of the third direction Z and the second direction Y in the plane.

[0335] The second end 250b of the first swing arm may include a third slider 251, which is slidably connected to the third slide groove 235. With the above configuration, the first swing arm 250 can move relative to the first fixed frame 230, and the sliding direction of the first swing arm 250 relative to the first fixed frame 230 is perpendicular to the length extension direction of the first fixed frame 230.

[0336] Similarly, the second rotating shaft assembly 300 also includes a second swing arm 350. The first end 350a of the second swing arm is rotatably connected to the main shaft 100. The rotation axis of the second swing arm 350 relative to the main shaft 100 is parallel to the first direction X. The second end 350b of the second swing arm is slidably connected to the second fixed frame 330. The sliding direction of the second swing arm 350 relative to the second fixed frame 330 intersects the length extension direction of the second fixed frame 330 (i.e., the first direction X). The sliding direction of the second swing arm 350 relative to the second fixed frame 330 also intersects the extension direction F2 of the first guide groove 224.

[0337] For example, the second fixing frame 330 may include a fourth slide groove 335, the extension direction of which may be perpendicular to the extension direction of the second fixing frame 330, and the extension direction of the fourth slide groove 335 may also be parallel to the support surface of the second fixing frame 330. The extension direction of the fourth slide groove 335 and the extension direction of the second slide groove 331 intersect in the orthographic projection of the second direction Z and the second direction Y in the plane. The second end 350b of the second swing arm may include a fourth slider 351, which is slidably connected to the fourth slide groove 335.

[0338] With the above configuration, the second swing arm 350 can move relative to the second fixed frame 330, and the sliding direction of the second swing arm 350 relative to the second fixed frame 330 is perpendicular to the length extension direction of the second fixed frame 330.

[0339] Figure 27A is a cross-sectional view along section line FF of the rotating mechanism in Figure 4 in the unfolded state; Figure 27B is a cross-sectional view along section line FF of the rotating mechanism in Figure 4 in the folded state.

[0340] Referring to Figures 27A and 27B, during the transition of the rotating mechanism from the unfolded state to the folded state, the first fixed frame 230 slides away from the main shaft 100 relative to the second end 250b of the first swing arm, and the second fixed frame 330 slides away from the main shaft 100 relative to the second end 350b of the second swing arm. This arrangement facilitates adjustment of the length between the first fixed frame 230 and the second fixed frame 330, helps ensure that the length of the flexible screen remains unchanged, and mitigates the squeezing or stretching phenomenon of the rotating mechanism on the flexible screen.

[0341] In some other embodiments, the first swing arm 250 may be slidably connected to the first support plate 240, and the second swing arm 350 may be slidably connected to the second support plate 340.

[0342] For example, the first support plate 240 and the first swing arm 250 can be slidably connected by a rotating shaft and a strip hole. The extension direction of the rotating shaft is parallel to the first direction X. The first support plate 240 may include a strip hole. The rotating shaft is also rotatably connected to the first swing arm 250. The rotating shaft passes through the strip hole, and when the rotating shaft moves along the extension direction of the strip hole, the first support plate 240 and the first swing arm 250 slide relative to each other.

[0343] For example, the first support plate 240 and the first swing arm 250 can be slidably connected via a pivot and a guide groove, wherein the guide groove can be straight or curved. Alternatively, the first support plate 240 and the first swing arm 250 can be slidably connected via a virtual axis. The sliding connection between the second support plate 340 and the second swing arm 350 can be similar and will not be described further here.

[0344] Figure 28 is an assembly structure diagram of a first swing arm, a second swing arm, and a spindle provided in an embodiment of this application; Figure 29 is an exploded view of a spindle provided in an embodiment of this application.

[0345] In some embodiments, referring to Figures 28 and 29, the main shaft 100 may include a first mounting shaft 131, a second mounting shaft 132, a third mounting shaft 133, and a fourth mounting shaft 134 arranged sequentially along a second direction Y, wherein the first mounting shaft 131, the second mounting shaft 132, the third mounting shaft 133, and the fourth mounting shaft 134 all extend along a first direction X. A first end 250a of the first swing arm may be sleeved on the first mounting shaft 131 so that the first end 250a of the first swing arm can be rotatably connected to the main shaft 100, and a first end 350a of the second swing arm may be sleeved on the fourth mounting shaft 134 so that the first end 350a of the second swing arm can be rotatably connected to the main shaft 100.

[0346] Based on the above structure, the main shaft 100 may further include an elastic element 150 and a damping slider 160. The elastic element 150 may be disposed on the main shaft 100 along the first direction X, and the damping slider 160 may be slidably connected to the main shaft 100 along the first direction X. For example, the elastic element 150 may include springs, and the number of springs may be four, and the four springs may be respectively sleeved on the first mounting shaft 131, the second mounting shaft 132, the third mounting shaft 133, and the fourth mounting shaft 134.

[0347] The first mounting shaft 131, the second mounting shaft 132, the third mounting shaft 133, and the fourth mounting shaft 134 can all be slidably connected to the damping slider 160. There can be two damping sliders 160, and the two damping sliders 160 can be arranged along the first direction X. The first end of the elastic element 150 is connected to one damping slider 160, and the second end of the elastic element 150 is connected to the other damping slider 160. Alternatively, in some other embodiments, there can be only one damping slider 160, where the first end of the elastic element 150 can be connected to the main outer shaft 110, and the second end of the elastic element 150 can be connected to the damping slider 160.

[0348] The first swing arm 250 and the second swing arm 350 together constitute a swing arm assembly. In an embodiment where there are two damping sliders 160, the number of swing arm assemblies in the rotating mechanism can be two. One swing arm assembly is located on the side of a damping slider 160 facing away from the first end of the elastic member 150, and the other swing arm assembly is located on the side of a damping slider 160 facing away from the second end of the elastic member 150. The following description uses only one swing arm assembly and one corresponding damping slider 160 as an example.

[0349] Furthermore, the first end 250a of the first swing arm may include a first concave-convex surface 258, the damping slider 160 may include a second concave-convex surface 161 that cooperates with the first concave-convex surface 258, the first end 350a of the second swing arm may include a third concave-convex surface 358, and the damping slider 160 may include a fourth concave-convex surface 162 that cooperates with the third concave-convex surface 358.

[0350] For example, the first concave-convex surface 258 may be adjacent to the through hole of the first swing arm 250, and in the direction surrounding the central axis of the through hole of the first swing arm 250, the first concave-convex surface 258 may include alternating convex surfaces and concave surfaces. The second concave-convex surface 161 is adjacent to the through hole of the damping slider 160, and in the direction surrounding the central axis of the through hole of the damping slider 160, the second concave-convex surface 161 may include alternating convex surfaces and concave surfaces.

[0351] Similarly, the third concave-convex surface 358 may be adjacent to the through hole of the second swing arm 350, and in the direction surrounding the central axis of the through hole of the second swing arm 350, the third concave-convex surface 358 may include alternating convex and concave surfaces. The fourth concave-convex surface 162 is adjacent to the through hole of the damping slider 160, and in the direction surrounding the central axis of the second through hole of the damping slider 160, the fourth concave-convex surface 162 may include alternating convex and concave surfaces.

[0352] When the rotating mechanism rotates to the first position, the first swing arm 250 rotates relative to the main shaft 100 to the first position, and the second swing arm 350 rotates relative to the main shaft 100 to the first position: the elastic body is in a first compressed state. When the rotating mechanism rotates to the second position, the first swing arm 250 rotates relative to the main shaft 100 to the second position, and the second swing arm 350 rotates relative to the main shaft 100 to the second position: the elastic body is in a second compressed state.

[0353] In some examples, as the rotating mechanism rotates from the first position to the second position, it may be in a state transitioning from an unfolded state to a folded state. In this case, the length of the elastic element 150 in the first compressed state is greater than the length of the elastic element 150 in the second compressed state.

[0354] When the first swing arm 250 rotates relative to the main shaft 100 from the first position to the second position, the first swing arm 250 also rotates relative to the first mounting shaft 131. Since the first concave-convex surface 258 of the first swing arm 250 engages with the second concave-convex surface 161 of the damping slider 160, the first swing arm 250 drives the damping slider 160 to slide relative to the first mounting shaft 131 along the first direction X. The damping slider 160 drives the first spring to compress and deform. The elastic restoring force of the first spring acts as a damping force, thus providing a damping effect when the first swing arm 250 rotates relative to the main shaft 100.

[0355] Simultaneously, when the second swing arm 350 rotates relative to the main shaft 100 from the first position to the second position, the second swing arm 350 also rotates relative to the fourth mounting shaft 134. Since the third concave-convex surface 358 of the second swing arm 350 engages with the fourth concave-convex surface 162 of the damping slider 160, the second swing arm 350 drives the damping slider 160 to slide relative to the second rotating shaft along the first direction X. The damping slider 160 drives the second spring to compress and deform. The elastic restoring force of the second spring acts as a damping force, thus providing a damping effect when the second swing arm 350 rotates relative to the main shaft 100.

[0356] In some embodiments, the first end 250a of the first swing arm may further include a first gear 255, and the main shaft 100 may further include a second gear 142 meshing with the first gear 255. The first end 350a of the second swing arm may further include a third gear 355, and the main shaft 100 may further include a fourth gear 143 meshing with the third gear 355. The second gear 142 also meshes with the fourth gear 143.

[0357] For example, the first gear 255, the second gear 142, the fourth gear 143 and the third gear 355 can be sequentially sleeved on the first mounting shaft 131, the second mounting shaft 132, the third mounting shaft 133 and the fourth mounting shaft 134, so that the first gear 255, the second gear 142, the fourth gear 143 and the third gear 355 are arranged sequentially along the second direction Y.

[0358] When the first swing arm 250 rotates relative to the main shaft 100, the first gear 255 drives the second gear 142 to rotate, which in turn drives the fourth gear 143 to rotate. The fourth gear 143 then drives the third gear 355 to rotate, causing the second swing arm 350 to rotate relative to the main shaft 100. Through this configuration, the first swing arm 250 rotates relative to the main shaft 100 while the second swing arm 350 rotates relative to the main shaft 100, thus achieving synchronous movement of the first and second swing arms 250.

[0359] Of course, in some other embodiments, the first swing arm 250 and the second swing arm 350 can also achieve synchronous movement through other structures, and this application embodiment does not specifically limit this.

[0360] For example, the main shaft 100 may further include a synchronizing slider, which is slidably connected to the main shaft 100 along a first direction X. The synchronizing slider may be located between two through holes at the first end 250a of the first swing arm and between two through holes at the first end 350a of the second swing arm. Furthermore, the synchronizing slider and the first swing arm 250 may each include two cooperating helical surfaces, and the synchronizing slider and the second swing arm 350 may each include two cooperating helical surfaces.

[0361] With the above configuration, through the cooperation between the spiral surfaces, the first swing arm 250 can rotate relative to the main shaft 100 while the second swing arm 350 rotates relative to the main shaft 100, thereby achieving synchronous movement of the first swing arm 250 and the second swing arm 350.

[0362] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A rotating mechanism, characterized in that, include: The main axis (100) extends along the first direction (X); The first rotating shaft assembly (200) includes a first rotating member (210), a first rocker arm (220), and a first fixed frame (230). The first end (210a) of the first rotating member is rotatably connected to the main shaft (100), and the second end (210b) of the first rotating member is slidably connected to the first fixed frame (230) through a first sliding groove (231). The second end (210b) of the first rotating member can slide relative to the first fixed frame (230) along the extension direction of the first sliding groove (231). The first end (220a) of the first rocker arm is rotatably connected to the first rotating member (210). The rotation axis of the first rocker arm (220) relative to the first rotating member (210) is a first axis (L1). The second end (220b) of the first rocker arm is slidably connected to the first fixed frame (230) through a first guide groove (224). The second end (220b) of the first rocker arm can slide relative to the first fixed frame (230) along the extension direction of the first guide groove (224). The second rotating shaft assembly (300) includes a second rotating member (310), a second rocker arm (320), and a second fixed frame (330). The first end (310a) of the second rotating member is rotatably connected to the main shaft (100), and the second end (310b) of the second rotating member is slidably connected to the second fixed frame (330) through a second slide groove (331). The second end (310b) of the second rotating member can slide relative to the second fixed frame (330) along the extension direction of the second slide groove (331). The first end (320a) of the second rocker arm is rotatably connected to the second rotating member (310). The rotation axis of the second rocker arm (320) relative to the second rotating member (310) is the second axis (L2). The second end (320b) of the second rocker arm is slidably connected to the second fixed frame (330) through a second guide groove (324). The second end (320b) of the second rocker arm can slide relative to the second fixed frame (330) along the extension direction of the second guide groove (324). When the rotating mechanism is in the deployed state, the second end (210b), the first end (210a), the first end (310a), and the second end (310b) of the first rotating member are arranged sequentially along the second direction (Y). The first rotating shaft assembly (200), the main shaft (100), and the second rotating shaft assembly (300) together form a supporting plane (S). The extension directions of the first slide groove (231) and the second slide groove (331) both intersect the supporting plane (S), and the extension directions of the first slide groove (231) and the second slide groove (331) also intersect a direction perpendicular to the supporting plane (S). The extension directions of the first guide groove (224) and the second guide groove (324) both intersect the supporting plane (S). Furthermore, the projections of the extension directions of the first guide groove (224) and the second guide groove (324) onto the support plane (S) are both perpendicular to the projection of the second direction (Y) onto the support plane (S); the projection of the first axis (L1) onto the support plane (S) intersects the projection of the extension direction of the first slide groove (231) onto the support plane (S), and the projection of the first axis (L1) onto the support plane (S) also intersects the projection of the first direction (X) onto the support plane (S); the projection of the second axis (L2) onto the support plane (S) intersects the projection of the extension direction of the second slide groove (331) onto the support plane (S), and the projection of the second axis (L2) onto the support plane (S) also intersects the projection of the first direction (X) onto the support plane (S); When the rotating mechanism is in the folded state, the first rotating shaft assembly (200), the main shaft (100), and the second rotating shaft assembly (300) together form a receiving space.

2. The rotating mechanism according to claim 1, characterized in that, The second end (220b) of the first swing arm is slidably connected to the first fixed frame (230) through the first guide groove (224), including: the second end (220b) of the first swing arm and the first fixed frame (230) are slidably connected through the first shaft (410) and the first guide groove (224); the second end (220b) of the first swing arm includes the first guide groove (224), and the first fixed frame (230) is connected to the first shaft (410); or, the first fixed frame (230) includes the first guide groove (224), and the second end (220b) of the first swing arm is connected to the first shaft (410); the extension direction of the first shaft (410) is parallel to the first axis (L1); The second end (320b) of the second rocker arm is slidably connected to the second fixed frame (330) through the second guide groove (324), including: the second end (320b) of the second rocker arm and the second fixed frame (330) are slidably connected through the second shaft (510) and the second guide groove (324); the second end (320b) of the second rocker arm includes the second guide groove (324), and the second fixed frame (330) is connected to the second shaft (510); or, the second fixed frame (330) includes the second guide groove (324), and the second end (320b) of the second rocker arm is connected to the second shaft (510); the extension direction of the second shaft (510) is parallel to the second axis (L2).

3. The rotating mechanism according to claim 2, characterized in that, When the rotating mechanism is in the unfolded state: the first axis (L1) and the second axis (L2) are both parallel to the support plane (S), and the first shaft (410) and the second shaft (510) are both parallel to the support plane (S).

4. The rotating mechanism according to claim 2 or 3, characterized in that, The first axis (L1) and the second axis (L2) are both perpendicular to the first direction (X), and the first axis (410) and the second axis (510) are both perpendicular to the first direction (X).

5. The rotating mechanism according to any one of claims 2-4, characterized in that, When the rotating mechanism is in the deployed state: In the first direction (X), the distance between the first end (224a) of the first guide groove and the first end (220a) of the first swing rod is greater than the distance between the second end (224b) of the first guide groove and the first end (220a) of the first swing rod. In the direction perpendicular to the support plane (S), the distance between the first end (224a) of the first guide groove and the support plane (S) is greater than the distance between the second end (224b) of the first guide groove and the support plane (S). In the first direction (X), the distance between the first end (324a) of the second guide groove and the first end (320a) of the second swing rod is greater than the distance between the second end (324b) of the second guide groove and the first end (320a) of the second swing rod. In the direction perpendicular to the support plane (S), the distance between the first end (324a) of the second guide groove and the support plane (S) is greater than the distance between the second end (324b) of the second guide groove and the support plane (S).

6. The rotating mechanism according to claim 5, characterized in that, In the case where the second end (220b) of the first rocker arm includes a first guide groove (224), the first fixing bracket (230) is connected to the first shaft (410), the second end (320b) of the second rocker arm includes a second guide groove (324), and the second fixing bracket (330) is connected to the second shaft (510): During the transition of the rotating mechanism from the unfolded state to the folded state, the first shaft (410) moves relative to the first guide groove (224) in the direction from the first end (224a) of the first guide groove to the second end (224b) of the first guide groove, and the second shaft (510) moves relative to the second guide groove (324) in the direction from the first end (324a) of the second guide groove to the second end (324b) of the second guide groove. During the transition of the rotating mechanism from the folded state to the unfolded state, the first shaft (410) moves relative to the first guide groove (224) along the direction from the second end (224b) of the first guide groove to the first end (224a) of the first guide groove, and the second shaft (510) moves relative to the second guide groove (324) along the direction from the second end (324b) of the second guide groove to the first end (324a) of the second guide groove.

7. The rotating mechanism according to claim 5 or 6, characterized in that, When the rotating mechanism is in the folded state: The direction in which the first end (224a) of the first guide groove points to the second end (224b) of the first guide groove is parallel to the first direction (X); The direction in which the first end (324a) of the second guide groove points to the second end (324b) of the second guide groove is parallel to the first direction (X).

8. The rotating mechanism according to any one of claims 2-7, characterized in that, When the rotating mechanism is in the deployed state: In the second direction (Y), the distance between the third end (224c) of the first guide groove and the main shaft (100) is greater than the distance between the fourth end (224d) of the first guide groove and the main shaft (100), and the size of the third end (224c) of the first guide groove is equal to the size of the fourth end (224d) of the first guide groove. In the second direction (Y), the distance between the third end (324c) of the second guide groove and the main shaft (100) is greater than the distance between the fourth end (324d) of the second guide groove and the main shaft (100), and the size of the third end (324c) of the second guide groove is equal to the size of the fourth end (324d) of the second guide groove.

9. The rotating mechanism according to any one of claims 1-8, characterized in that, The first end (220a) of the first rocker arm can slide relative to the first rotating member (210) along the extension direction of the first axis (L1), and the first end (320a) of the second rocker arm can slide relative to the second rotating member (310) along the extension direction of the second axis (L2).

10. The rotating mechanism according to claim 9, characterized in that, During the transition of the rotating mechanism from the unfolded state to the folded state, the first end (220a) of the first swing arm moves relative to the first rotating member (210) along a direction parallel to the first axis (L1) and from the main shaft (100) toward the first fixed frame (230), and the first end (320a) of the second swing arm moves relative to the second rotating member (310) along a direction parallel to the second axis (L2) and from the main shaft (100) toward the second fixed frame (330). During the transition of the rotating mechanism from a folded state to an unfolded state, the first end (220a) of the first swing arm moves relative to the first rotating member (210) along a direction parallel to the first axis (L1) and from the first fixed frame (230) toward the main shaft (100), and the first end (320a) of the second swing arm moves relative to the second rotating member (310) along a direction parallel to the second axis (L2) and from the second fixed frame (330) toward the main shaft (100).

11. The rotating mechanism according to any one of claims 1-10, characterized in that, The first end (220a) of the first rocker arm is rotatably connected to the first rotating member (210), including: the first end (220a) of the first rocker arm and the first rotating member (210) are rotatably connected through a third shaft (420) and a first mating hole (225), wherein the first end (220a) of the first rocker arm includes the first mating hole (225), and the third shaft (420) is connected to the first rotating member (210); or, the first rotating member (210) includes the first mating hole (225), and the third shaft (420) is connected to the first end (220a) of the first rocker arm; the first end (220a) of the first rocker arm slides relative to the first rotating member (210) through the third shaft (420) and the first mating hole (225); The first end (320a) of the second rocker arm is rotatably connected to the second rotating member (310), including: the first end (320a) of the second rocker arm and the second rotating member (310) are rotatably connected through a fourth shaft (520) and a second mating hole (325), wherein the first end (350a) of the second rocker arm includes the second mating hole (325), and the fourth shaft (520) is connected to the second rotating member (310), or the second rotating member (310) includes the second mating hole (325), and the fourth shaft (520) is connected to the first end (350a) of the second rocker arm; the first end (350a) of the second rocker arm slides relative to the second rotating member (310) through the fourth shaft (520) and the second mating hole (325).

12. The rotating mechanism according to claim 11, characterized in that, In the case where the first end (220a) of the first swing arm includes the first mating hole (225), the third shaft (420) is connected to the first rotating member (210), the first end (350a) of the second swing arm includes the second mating hole (325), and the fourth shaft (520) is connected to the second rotating member (310): When the rotating mechanism is in the deployed state: in the second direction (Y), the distance between the first end (420a) of the third shaft and the main shaft (100) is less than the distance between the second end (420b) of the third shaft and the main shaft (100), and the distance between the first end (520a) of the fourth shaft and the main shaft (100) is less than the distance between the second end (520b) of the fourth shaft and the main shaft (100); During the transition of the rotating mechanism from the unfolded state to the folded state, the first end (220a) of the first swing arm moves relative to the first rotating member (210) along the direction from the first end (420a) of the third axis to the second end (420b) of the third axis, and the first end (320a) of the second swing arm moves relative to the second rotating member (310) along the direction from the first end (520a) of the fourth axis to the second end (520b) of the fourth axis; During the transition of the rotating mechanism from a folded state to an unfolded state, the first end (220a) of the first swing arm moves relative to the first rotating member (210) along the direction from the second end (420b) of the third axis to the first end (420a) of the third axis, and the first end (320a) of the second swing arm moves relative to the second rotating member (310) along the direction from the second end (520b) of the fourth axis to the first end (520a) of the fourth axis.

13. The rotating mechanism according to claim 11 or 12, characterized in that, The first rotating member (210) includes a first helical surface (218), and the first end (220a) of the first rocker arm includes a second helical surface (228) that cooperates with the first helical surface (218). The first helical surface (218) and the second helical surface (228) have the same direction of rotation. The second rotating member (310) includes a third helical surface (318), and the first end (320a) of the second rocker arm includes a fourth helical surface (328) that cooperates with the third helical surface (318). The third helical surface (318) and the fourth helical surface (328) have the same direction of rotation, and the third helical surface (318) and the first helical surface (218) have opposite directions of rotation.

14. The rotating mechanism according to claim 13, characterized in that, During the transition between the folded and unfolded states of the rotating mechanism, the distance between the first helical surface (218) and the second helical surface (228) remains unchanged; the distance between the third helical surface (318) and the fourth helical surface (328) also remains unchanged.

15. The rotating mechanism according to any one of claims 1-14, characterized in that, The first end (220a) of the first rocker arm can slide relative to the first fixed frame (230) along the extension direction of the first slide groove (231), and the first end (220a) of the first rocker arm can rotate relative to the main shaft (100); The first end (320a) of the second rocker arm can slide relative to the second fixed frame (330) along the extension direction of the second slide groove (331), and the first end (320a) of the second rocker arm can rotate relative to the main shaft (100).

16. The rotating mechanism according to any one of claims 2-15, characterized in that, The first end (220a) of the first rocker arm and the first rotating member (210) are rotatably connected by a third shaft (420), and the first end (320a) of the second rocker arm and the second rotating member (310) are rotatably connected by a fourth shaft (520). When the rotating mechanism is in the unfolded state, in the thickness direction of the first rotating shaft assembly (200), the distance between the first shaft (410) and the supporting plane (S) is greater than the distance between the third shaft (420) and the supporting plane (S), and the distance between the first shaft (410) and the third shaft (420) is the first distance (D1). In the thickness direction of the second rotating shaft assembly (300), the distance between the second shaft (510) and the supporting plane (S) is greater than the distance between the fourth shaft (520) and the supporting plane (S), and the distance between the second shaft (510) and the fourth shaft (520) is the second distance (D2). During the transition of the rotating mechanism from the unfolded state to the folded state, in the thickness direction of the first rotating shaft assembly (200), the distance between the first shaft (410) and the third shaft (420) is less than the first distance (D1), and in the thickness direction of the second rotating shaft assembly (300), the distance between the second shaft (510) and the fourth shaft (520) is less than the second distance (D2). When the rotating mechanism is in a folded state, in the thickness direction of the first rotating shaft assembly (200), the distance between the first shaft (410) and the third shaft (420) is less than the first distance (D1), and in the thickness direction of the second rotating shaft assembly (300), the distance between the second shaft (510) and the fourth shaft (520) is less than the second distance (D2).

17. The rotating mechanism according to claim 16, characterized in that, When the rotating mechanism is in the folded state The first axis (410) and the third axis (420) overlap at least partially in the first direction (X), and the second axis (510) and the fourth axis (520) overlap at least partially in the first direction (X).

18. The rotating mechanism according to any one of claims 1-17, characterized in that, The second end (210b) of the first rotating member is slidably connected to the first fixed frame (230), including: the second end (210b) of the first rotating member and the first fixed frame (230) are slidably connected by a first slider (212) and a first groove (231), wherein the second end (210b) of the first rotating member includes the first slider (212) and the first fixed frame (230) includes the first groove (231), or the first fixed frame (230) includes the first slider (212) and the second end (210b) of the first rotating member includes the first groove (231); The second end (310b) of the second rotating member is slidably connected to the second fixed frame (330), including: the second end (310b) of the second rotating member and the second fixed frame (330) are slidably connected by the second slider (312) and the second slide groove (331), wherein the second end (310b) of the second rotating member includes the second slider (312) and the second fixed frame (330) includes the second slide groove (331), or the second fixed frame (330) includes the second slider (312) and the second end (310b) of the second rotating member includes the second slide groove (331).

19. The rotating mechanism according to claim 18, characterized in that, When the rotating mechanism is in the deployed state: In the second direction (Y), the distance between the first end (231a) of the first slide and the main shaft (100) is less than the distance between the second end (231b) of the first slide and the main shaft (100). In the direction perpendicular to the support plane (S), the distance between the first end (231a) of the first slide and the support plane (S) is greater than the distance between the second end (231b) of the first slide and the support plane (S). In the second direction (Y), the distance between the first end (331a) of the second slide and the main shaft (100) is less than the distance between the second end (331b) of the second slide and the main shaft (100). In the direction perpendicular to the support plane (S), the distance between the first end (331a) of the second slide and the support plane (S) is greater than the distance between the second end (231b) of the first slide and the support plane (S).

20. The rotating mechanism according to claim 19, characterized in that, During the transition of the rotating mechanism from the unfolded state to the folded state, the first slider (212) moves relative to the first slide groove (231) along the direction from the second end (231b) of the first slide groove to the first end (231a) of the first slide groove, and the second slider (312) moves relative to the second slide groove (331) along the direction from the second end (331b) of the second slide groove to the first end (331a) of the second slide groove. During the transition of the rotating mechanism from the folded state to the unfolded state, the first slider (212) moves relative to the first slide groove (231) in the direction from the first end (231a) of the first slide groove to the second end (231b) of the first slide groove, and the second slider (312) moves relative to the second slide groove (331) in the direction from the first end (331a) of the second slide groove to the second end (331b) of the second slide groove.

21. The rotating mechanism according to any one of claims 1-20, characterized in that, The first rotating shaft assembly (200) further includes a first support plate (240) and a second support plate (340). The first support plate (240) is slidably connected to the first rotating member (210), and the first support plate (240) is also rotatably connected to the first fixed frame (230). The second support plate (340) is slidably connected to the second rotating member (310), and the second support plate (340) is also rotatably connected to the second fixed frame (330). When the rotating mechanism is in the unfolded state, the first rotating shaft assembly (200), the main shaft (100), and the second rotating shaft assembly (300) together form a support plane (S), including: the first support plate (240), the first fixing frame (230), the main shaft (100), the second support plate (340), and the second fixing frame (330) together form the support plane (S); When the rotating mechanism is in the folded state, the minimum distance between the support surface of the first support plate (240) and the support surface of the second support plate (340) along the second direction (Y) is greater than or equal to the distance between the support surface of the first fixing frame (230) and the support surface of the second fixing frame (330) along the second direction (Y).

22. The rotating mechanism according to claim 21, characterized in that, The first support plate (240) and the first rotating member (210) are slidably connected by a first mating shaft (216) and a third guide groove (213). The extension direction of the first mating shaft (216) is parallel to the first direction (X). The first rotating member (210) includes the first mating shaft (216), and the first support plate (240) includes the third guide groove (213). The second support plate (340) and the second rotating member (310) are slidably connected by a second mating shaft (316) and a fourth guide groove (313). The extension direction of the second mating shaft (316) is parallel to the first direction (X). The second rotating member (310) includes the second mating shaft (316), and the second support plate (340) includes the fourth guide groove (313).

23. The rotating mechanism according to claim 22, characterized in that, When the rotating mechanism is in the deployed state: The distance between the first end (216a) of the first mating shaft and the main shaft (100) is less than the distance between the second end (216b) of the first mating shaft and the main shaft (100), and the distance between the first end (216a) of the first mating shaft and the support plane (S) is greater than the distance between the second end (216b) of the first mating shaft and the support plane (S). The distance between the first end (316a) of the second mating shaft and the main shaft (100) is less than the distance between the second end (316b) of the second mating shaft and the main shaft (100), and the distance between the first end (316a) of the second mating shaft and the support plane (S) is greater than the distance between the second end (316b) of the second mating shaft and the support plane (S).

24. The rotating mechanism according to claim 21 or 22, characterized in that, When the rotating mechanism is in the deployed state: The distance between the first end (213a) of the third guide groove and the main shaft (100) is less than the distance between the second end (213b) of the third guide groove and the main shaft (100), and the distance between the first end (213a) of the third guide groove and the support surface of the first support plate (240) is greater than the distance between the second end (213b) of the third guide groove and the support surface of the first support plate (240). The distance between the first end (313a) of the fourth guide groove and the main shaft (100) is less than the distance between the second end (313b) of the fourth guide groove and the main shaft (100), and the distance between the first end (313a) of the fourth guide groove and the support surface of the second support plate (340) is greater than the distance between the second end (313b) of the fourth guide groove and the support surface of the second support plate (340).

25. A foldable electronic device, characterized in that, It includes a flexible screen, a first structural member (21), a second structural member (22), and a rotating mechanism as described in any one of claims 1-24 above; The first structural member (21) and the second structural member (22) are connected to both sides of the rotating mechanism. The flexible screen is located on the same side of the first structural member (21) and the second structural member (22) and is connected to the first structural member (21) and the second structural member (22). When the foldable electronic device is in the unfolded state, the support plane (S) of the rotating mechanism is used to support the flexible screen; When the foldable electronic device is in a folded state, the first rotating shaft assembly (200), the main shaft (100), and the second rotating shaft assembly (300) of the rotating mechanism together form a receiving space, and part of the flexible screen is located in the receiving space.

26. The foldable electronic device according to claim 25, characterized in that, The first end (220a) of the first swing arm and the first rotating member (210) are rotatably connected by a third shaft (420), and the second end (220b) of the first swing arm and the first fixed frame (230) are slidably connected by a first shaft (410). The first end (320a) of the second swing arm and the second rotating member (310) are rotatably connected by the fourth shaft (520), and the second end (320b) of the second swing arm and the second fixed frame (330) are slidably connected by the second shaft (510). The extension directions of the first axis (410) and the third axis (420) are parallel to each other and both parallel to the support surface of the first structural member, the support surface of the first structural member being used to connect with the flexible screen; the extension directions of the second axis (510) and the fourth axis (520) are parallel to each other and both parallel to the support surface of the second structural member, the support surface of the second structural member being used to connect with the flexible screen.

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