Rotating mechanism and folding electronic device

Abstract

Embodiments of the present application provide a rotating mechanism and a folding electronic device, which are used to improve the problem that it is difficult to realize the overall thinning of the folding electronic device in the related art. The rotating mechanism comprises a main shaft assembly, a horizontal slider and a swing arm assembly. The horizontal slider comprises two sub-sliders arranged along a first direction, and the sub-sliders are slidably connected to the main shaft assembly along the first direction. The swing arm assembly comprises two first swing arms located on both sides of the horizontal slider along the first direction, and one first swing arm is rotatably connected to one sub-slider. The two first swing arms rotate towards each other relative to the main shaft assembly and drive the two sub-sliders to slide away from each other, respectively. The two first swing arms rotate away from each other relative to the main shaft assembly and drive the two sub-sliders to slide towards each other, respectively. Through the above arrangement, since the two sub-sliders slide along the first direction, the rotating mechanism occupies less space in the thickness direction, which is conducive to realizing the overall thinning.

Description

Technical Field

[0001] This application relates to the field of electronic products, and more particularly to a rotating mechanism and a folding electronic device. Background Technology

[0002] 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.

[0003] The foldable electronic device includes at least a flexible screen, 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. However, the rotating mechanism in related technologies is relatively large, which is not conducive to achieving an overall thinner and lighter foldable electronic device. Summary of the Invention

[0004] This application provides a rotating mechanism and a foldable electronic device to improve the problem that the rotating mechanism in the related art is too large, which is not conducive to the overall thinness and lightness of the foldable electronic device.

[0005] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0006] In a first aspect, a rotating mechanism is provided, including a main shaft assembly, a horizontal slider, and a swing arm assembly. The horizontal slider includes two sub-sliders arranged along a first direction, and the sub-sliders are slidably connected to the main shaft assembly along the first direction. The swing arm assembly includes two first swing arms, which are located on opposite sides of the horizontal slider in the first direction. One first swing arm is rotatably connected to one sub-slider, and the rotation axis of one first swing arm relative to one sub-slider is parallel to a second direction, which is the extension direction of the main shaft assembly and perpendicular to the first direction. The two first swing arms are used to rotate relative to the main shaft assembly towards each other, thereby driving the two sub-sliders to slide in opposite directions; the two first swing arms are also used to rotate relative to the main shaft assembly in opposite directions, thereby driving the two sub-sliders to slide towards each other.

[0007] With the above configuration, while the two first swing arms rotate towards each other relative to the main shaft assembly, the two sub-slider slides away from each other along the first direction, creating a clearance space between them that can accommodate the folded flexible screen. Conversely, while the two first swing arms rotate away from each other relative to the main shaft assembly, the two sub-slider slides towards each other along the first direction, bringing them together to support the flat flexible screen. Furthermore, because the two sub-slider slides along the first direction, the rotation mechanism occupies less space in its thickness direction, which is beneficial for achieving a thinner and lighter foldable electronic device. This thickness direction is perpendicular to the plane containing the first and second directions.

[0008] Meanwhile, since the two sub-sliders can slide towards or away from each other along the first direction, it is beneficial to adjust the length of the two first swing arms along the first direction. Through the above configuration, during the folding or unfolding of the foldable electronic device, it helps to reduce the squeezing or stretching of the flexible screen by the rotating mechanism.

[0009] In some embodiments, in a rotatably connected first swing arm and sub-slider: the sub-slider includes a first arc-shaped groove, the first swing arm includes a first slider and a first body, the first slider engages with the first arc-shaped groove, and when the first swing arm rotates relative to the main shaft assembly, the first body drives the first slider to slide along the first arc-shaped groove, and also drives the sub-slider to slide. With the above configuration, the first slider can engage with the first arc-shaped groove and slide within the first arc-shaped groove, so that a first swing arm and a sub-slider can rotate relative to the rotation axis.

[0010] In some embodiments, the sub-slider includes a first limiting surface and a second limiting surface disposed opposite to each other along a first direction. When the two first swing arms rotate to a flat state, the first limiting surfaces of the two sub-sliders contact each other. The main shaft assembly includes a base with two folded edges disposed opposite to each other along a first direction. When the two first swing arms rotate to a folded state, the second limiting surface of one sub-slider contacts one of the folded edges. The cooperation of the first limiting surfaces of the two sub-sliders achieves a stopping effect when the two sub-sliders slide towards each other, and also achieves a supporting effect for the flexible screen. The cooperation of the second limiting surfaces of the sub-sliders with the folded edges achieves a stopping effect when the two sub-sliders slide away from each other, preventing the two sub-sliders from sliding out of the base, and also preventing them from interfering with the flexible screen in the folded state.

[0011] In some embodiments, the first limiting surface includes a first sub-surface and a second sub-surface. The second sub-surface is farther from the base relative to the first sub-surface, and closer to the second limiting surface relative to the first sub-surface. A first arc-shaped groove extends from the second limiting surface to the second sub-surface. When the two first swing arms rotate to a flat state, a portion of the first slider protrudes from the second sub-surface. When the two first swing arms rotate to a folded state, the first slider is located within the first arc-shaped groove. With the above configuration, when the two first swing arms rotate in opposite directions relative to the main shaft assembly, the first body of the first swing arm drives the first slider to slide within the first arc-shaped groove until the first slider slides to a point where it partially extends out of the first arc-shaped groove, and the first body still contacts the folded edge of the base. At this time, the two first swing arms are in a flat state. When the two first swing arms rotate towards each other relative to the main shaft assembly, the first body of the first swing arm drives the first slider to slide within the first arc-shaped groove until the first slider slides to a point where it is completely retracted into the first arc-shaped groove. At this time, the two first swing arms are in a folded state, and the flexible screen is in a folded state, which prevents the first slider from extending between the second sub-surfaces of the two sub-sliders, thereby preventing the first slider from colliding and interfering with the flexible screen.

[0012] In some embodiments, one sub-slider further includes a guide post disposed on the first limiting surface and protruding towards the other sub-slider; the other sub-slider further includes a guide groove cooperating with the guide post, the guide groove being recessed from the first limiting surface in a direction away from one sub-slider. With the above configuration, when the two first swing arms rotate in opposite directions relative to the main shaft assembly and the two sub-sliders slide towards each other along the first direction, a guide post of one sub-slider can slide into a guide groove of the other sub-slider, and the cooperating guide post and guide groove can provide guidance; similarly, when the two first swing arms rotate towards each other relative to the main shaft assembly and the two sub-sliders slide in opposite directions along the first direction, a guide post of one sub-slider can slide through a guide groove of the other sub-slider, and the cooperating guide post and guide groove can provide guidance.

[0013] In some embodiments, the spindle assembly includes a base and a fixed block, the fixed block being connected to the base and having a horizontal groove extending along a first direction; a sub-slider is located on one side of the base and arranged with the fixed block along a second direction, the sub-slider having a slide bar that engages with the horizontal groove. With this configuration, the slide bar can slide within the horizontal groove to drive the sub-slider to slide relative to the spindle assembly along the first direction.

[0014] In some embodiments, the rotating mechanism further includes a vertical slider. The vertical slider is slidably connected to the main shaft assembly along a third direction and arranged with the horizontal slider along a second direction, the third direction being perpendicular to the plane containing the first and second directions. The swing arm assembly further includes two second swing arms, which are located on both sides of the vertical slider in the first direction and are rotatably connected to the vertical slider. The rotation axis of one second swing arm relative to the vertical slider is parallel to the second direction. When the two second swing arms rotate from a flat state to a folded state, the two second swing arms rotate towards each other relative to the main shaft assembly, causing the main shaft assembly to slide closer to the vertical slider; when the two second swing arms rotate from a folded state to a flat state, the two second swing arms rotate away from the main shaft assembly, causing the main shaft assembly to slide away from the vertical slider. With the above settings, while the two second swing arms rotate toward each other relative to the main shaft assembly, the main shaft assembly slides toward the direction closer to the vertical slider, preventing the main shaft assembly from protruding outward when the foldable electronic device is in the folded state, thus improving the aesthetics of the appearance; while the two second swing arms rotate away from each other relative to the main shaft assembly, the main shaft assembly slides away from the direction of the vertical slider, avoiding contact and interference with the second swing arms.

[0015] In some embodiments, the vertical slider includes two second arc-shaped grooves, and the central axes of the two second arc-shaped grooves are parallel to each other. Each second swing arm includes a second slider and a second body. One second slider engages with one second arc-shaped groove. When the second swing arm rotates relative to the vertical slider, the second body drives the second slider to slide within the second arc-shaped groove, and also drives the main shaft assembly to slide. With the above configuration, one second slider can engage with one second arc-shaped groove and slide within the second arc-shaped groove, so that one second swing arm and the vertical slider can rotate relative to the rotation axis.

[0016] In some embodiments, the first and second swing arms located on the same side of the spindle assembly are connected as a first body and a second body. With this configuration, the first and second swing arms located on the left side of the spindle assembly rotate synchronously, and the first and second swing arms located on the right side of the spindle assembly rotate synchronously. The rotation axis of the second swing arm relative to the vertical slider is spaced apart from the rotation axis of the first swing arm relative to the vertical slider. With this configuration, the first and second swing arms on the same side of the spindle assembly generate a phase difference during oscillation, causing the first swing arm to drive the sub-slider to slide along a first direction, and simultaneously causing the second swing arm to drive the vertical slider to slide along a third direction.

[0017] In some embodiments, the vertical slider includes a third limiting surface and a fourth limiting surface disposed opposite to each other along a third direction, the third limiting surface being away from the base relative to the fourth limiting surface, and the vertical slider includes a first connecting surface and a second connecting surface disposed opposite to each other along a first direction, the first connecting surface and the second connecting surface being respectively connected between the third limiting surface and the fourth limiting surface.

[0018] One second arc-shaped groove passes through the first connecting surface, the fourth limiting surface, and the third limiting surface simultaneously; another second arc-shaped groove passes through the second connecting surface, the fourth limiting surface, and the third limiting surface simultaneously; when the two second swing arms rotate to the flat state, a portion of one second slider protrudes from the third limiting surface, and a portion of one second main body is located between the fourth limiting surface and the base; when the two second swing arms rotate to the folded state, one second slider is located within a second arc-shaped groove.

[0019] With the above configuration, when the two second swing arms rotate in opposite directions relative to the main spindle assembly, the second body of the second swing arm drives the second slider to slide within the second arc-shaped groove until the second slider partially protrudes from the third limiting surface, allowing the second slider to extend out of the second arc-shaped groove. Simultaneously, the second body rotates to the side of the third limiting surface of the vertical slider closer to the base, thereby causing the second body to push the base of the main spindle assembly away from the fourth limiting surface of the vertical slider, and allowing a portion of the second body to be positioned between the fourth limiting surface and the base. At this time, the two second swing arms are in a flat state. This configuration helps to avoid contact and interference between the second body and the main spindle assembly. When the two second swing arms rotate towards the main spindle assembly, the second body of the second swing arm drives the second slider to slide within the second arc-shaped groove. Simultaneously, the second body rotates to the side of the third limiting surface of the vertical slider away from the base, thereby causing the base of the main spindle assembly to move towards the fourth limiting surface of the vertical slider until the fourth limiting surface contacts the base. At this time, the two second swing arms are in a folded state. The above settings help prevent the spindle assembly from protruding outwards when the foldable electronic device is in a folded state, thereby improving the aesthetics of the appearance.

[0020] In some embodiments, the two second arc-shaped slides are interconnected. When the two second swing arms rotate to a flat state, one second slider overlaps with the other in a second direction, and one second slider is staggered with the other in a first direction. This arrangement ensures that the two second sliders extend from the opening of the same second arc-shaped slide and avoids interference between them.

[0021] In some embodiments, the spindle assembly includes a slide column connected to a base and extending in a third direction; a vertical slider is located on one side of the base and has a sliding hole that mates with the slide column. With this configuration, the slide column can slide within the sliding hole, thereby enabling the spindle assembly to slide relative to the vertical slider in a third direction.

[0022] In some embodiments, the end of the sliding column facing away from the base has a stop block; when the two second swing arms rotate to the flat state, the vertical slider contacts the stop block; when the two second swing arms rotate to the folded state, the vertical slider contacts the base. With this configuration, when the two second swing arms rotate in opposite directions, the base moves away from the vertical slider until the stop block of the sliding column contacts the bottom of the countersunk hole, so that the mating stop block and countersunk hole can limit movement and prevent the base from moving further. At this time, the two second swing arms are in the flat state. When the two second swing arms rotate towards each other, the base moves closer to the vertical slider until the fourth limiting surface of the vertical slider contacts the base, thereby preventing further movement. At this time, the two second swing arms are in the folded state.

[0023] In some embodiments, a first swing arm and a second swing arm located on the same side of the main shaft assembly constitute a single swing arm component. The rotation mechanism further includes a damping assembly comprising two damping elements, one of which is mounted on one swing arm component. When the two swing arms rotate to a flat position, the damping assembly drives the two swing arms to stop rotating. This configuration ensures that when the two swing arms rotate to a flat position and no external force is applied, the damping assembly can maintain the flat position of the two swing arms, achieving self-opening of the folding electronic device. When the included angle between the two swing arms equals a preset value, the damping assembly drives the two swing arms to stop rotating. This configuration ensures that when the included angle between the two swing arms equals a preset value, the damping assembly drives the two swing arms to stop rotating, thereby stopping the first and second structural components from rotating, achieving hovering of the folding electronic device. When the two swing arms rotate to a folded position, the damping assembly drives the two swing arms to stop rotating. This configuration ensures that when the two swing arms rotate to a folded position and no external force is applied, the damping assembly can maintain the folded position of the two swing arms, achieving self-closing of the folding electronic device.

[0024] In some embodiments, the sub-slider has a protrusion and a recess on the side near the rocker arm, with the recess located on the side of the protrusion near the main shaft assembly. The damping element includes a roller and an elastic element. The roller is located between the sub-slider and the elastic element, and its extension direction is parallel to a second direction. The elastic element drives the roller to abut against the sub-slider. When the included angle between the two rocker arms is equal to a preset value, the elastic element is in a first compressed state, and the roller contacts the protrusion. When the two rocker arms rotate to a flattened state, the elastic element is in a second compressed state, and the roller contacts the recess. When the two rocker arms rotate to a folded state, the elastic element is in a third compressed state, and the roller contacts the side of the protrusion away from the main shaft assembly. The length of the elastic element in both the second and third compressed states is greater than the length of the elastic element in the first compressed state.

[0025] With the above settings, when the included angle between the two swing arms is equal to the preset value, the elastic element is in the first compression state. The elastic restoring force of the elastic element pushes the roller against the convex part of the sub-slider. At this time, the roller is in force balance, causing it to stop rotating. When the roller stops rotating, the compression of the elastic element does not change, so that the elastic restoring force of the elastic element remains unchanged. Since the damping element is installed inside the swing arm, the swing arm stops rotating relative to the main shaft assembly, and the two swing arms are in a suspended state. When the two swing arms rotate to the flat state, in order for the roller to roll from the concave part to the convex part, the elastic element needs to be further compressed, so that the elastic element changes from the second compression state to the first compression state. That is, the elastic element continues to be compressed and deformed. The elastic restoring force of the elastic element will have a damping effect. When the two swing arms rotate to the flat state and there is no external force, the roller is prevented from rolling from the concave part to the convex part, that is, the flat state of the two swing arms can be maintained, realizing the self-opening of the folding electronic device. When the two swing arms rotate to the folded state, in order for the roller to roll from the top surface to the protrusion, the elastic element needs to be continuously compressed, so that the elastic element changes from the third compression state to the first compression state. In other words, the elastic element continues to be compressed and deformed. The elastic restoring force of the elastic element will have a damping effect. When the two swing arms rotate to the folded state and there is no external force, the roller is prevented from rolling from the top surface to the protrusion, that is, the folded state of the two swing arms can be maintained, realizing the self-closing of the folding electronic device.

[0026] In some embodiments, the first swing arm further includes a transverse slide groove and a longitudinal slide groove that communicate with each other, and the second swing arm further includes a receiving groove that communicates with the transverse slide groove. The damping element also includes a transverse transmission element and a longitudinal transmission element connected between the roller and the elastic element. The transverse transmission element slides along a second direction in the transverse slide groove, and the longitudinal transmission element slides along a first direction in the longitudinal slide groove. The elastic element is located in the receiving groove, and the extension direction of the elastic element is parallel to the second direction. Based on the above configuration, when the roller rolls relative to the sub-slider, it can drive the longitudinal transmission element to move along the first direction, thereby causing the transverse transmission element to compress the elastic element along the second direction. The compressed elastic element generates an elastic restoring force, which can play a damping role.

[0027] In some embodiments, the end of the lateral transmission member facing away from the elastic member has a first inclined surface, and the end of the longitudinal transmission member facing away from the roller has a second inclined surface, with the first inclined surface in contact with the second inclined surface. With this configuration, when the compression of the elastic member is small, the elastic restoring force of the elastic member is small; however, this small elastic restoring force can be amplified by the first and second inclined surfaces, thereby increasing the damping effect.

[0028] In some embodiments, the longitudinal transmission component includes a connecting slider, a connecting disk, and a connecting wedge. The connecting disk is connected between the connecting slider and the connecting wedge, and the connecting slider is connected between the connecting disk and the roller. The surface of the connecting slider that contacts the roller is an inclined surface, and the surface of the connecting wedge that contacts the transverse transmission component is a second inclined surface. With this configuration, when the roller moves along the first direction, the roller drives the connecting slider to slide along the first direction within the longitudinal groove, thereby causing the connecting slider to drive the disk to rotate and simultaneously slide along the first direction within the longitudinal groove. The disk drives the connecting wedge to slide along the first direction within the longitudinal groove. Due to the cooperation between the first and second inclined surfaces, the transverse transmission component slides along the second direction within the transverse groove, thereby causing the elastic component connected to it to undergo compression deformation, so that the compressed elastic component generates an elastic restoring force, which can provide a damping effect. Furthermore, since rolling friction can be achieved between the disk and the connecting slider, it is beneficial to reduce the loss of power transmitted between the disk and the connecting slider.

[0029] In some embodiments, a swing arm component includes two first swing arms and one second swing arm. The two first swing arms are located on either side of the second swing arm along a second direction and are symmetrically arranged about the second swing arm. There are two horizontal sliders, located on either side of the vertical slider along the second direction and symmetrically arranged about the vertical slider. This arrangement facilitates increasing the length of the rotating mechanism along the second direction, making it easier to adapt to foldable electronic devices of corresponding sizes.

[0030] In some embodiments, the damping elements are symmetrically arranged with respect to the second swing arm. This arrangement helps to ensure uniform stress distribution within the same swing arm element, thereby improving the smoothness of the rotating mechanism's movement.

[0031] Secondly, a foldable electronic device is provided, comprising: a flexible screen, a first structural member, a second structural member, and a rotating mechanism as described in any of the above embodiments. The first and second structural members are connected to both sides of the rotating mechanism, the flexible screen is located on the same side of the first and second structural members and is connected to both the first and second structural members, and the flexible screen is also connected to the rotating mechanism. The foldable electronic device provided by the embodiments of this application includes the rotating mechanism as described above, and therefore has all the aforementioned beneficial effects, which will not be repeated here. Attached Figure Description

[0032] Figure 1 This is a structural diagram of a foldable electronic device in a flat state, provided in an embodiment of this application.

[0033] Figure 2 This is a structural diagram of a foldable electronic device in a hovering state, provided in an embodiment of this application.

[0034] Figure 3 This is a structural diagram of a foldable electronic device in a folded state, provided in an embodiment of this application.

[0035] Figure 4 This is a structural diagram showing the lifting structure in a flat state in some embodiments;

[0036] Figure 5 This is a structural diagram showing the lifting structure in a flat state in some embodiments;

[0037] Figure 6 A structural diagram of a rotating mechanism provided in an embodiment of this application;

[0038] Figure 7 An exploded view of the structure of a rotating mechanism provided in an embodiment of this application;

[0039] Figure 8 A structural diagram of a horizontal slider provided in an embodiment of this application;

[0040] Figure 9 A structural diagram of a fixing block provided in an embodiment of this application;

[0041] Figure 10 A structural diagram of a swing arm component provided in an embodiment of this application;

[0042] Figure 11a for Figure 6 A cross-sectional view of the rotating mechanism in the figure at point AA in a flat state;

[0043] Figure 11b for Figure 6 A cross-sectional view of the rotating mechanism in the folded state along point AA;

[0044] Figure 12a A structural diagram of another rotating mechanism provided in this application embodiment in a flat state;

[0045] Figure 12b This is a structural diagram of another rotating mechanism provided in an embodiment of this application in a folded state;

[0046] Figure 13 A structural diagram of a vertical slider provided in an embodiment of this application;

[0047] Figure 14a for Figure 6 A cross-sectional view of the rotating mechanism in the flat state along BB.

[0048] Figure 14b for Figure 6 A cross-sectional view of the rotating mechanism in the folded state along BB.

[0049] Figure 15a for Figure 6 A cross-sectional view of the rotating mechanism in the figure at point CC in its flat state;

[0050] Figure 15b for Figure 6 A cross-sectional view of the rotating mechanism in the folded state along the CC direction;

[0051] Figure 16 An exploded view of the structure of a damping element in a rotating mechanism provided in an embodiment of this application;

[0052] Figure 17 A side view of a rotating mechanism provided in an embodiment of this application;

[0053] Figure 18 for Figure 17 A cross-sectional view of the rotating mechanism along DD;

[0054] Figure 19 for Figure 17 A cross-sectional view of the rotating mechanism along EE;

[0055] Figure 20a This is a structural diagram of a rotating mechanism in a hovering state, provided in an embodiment of this application.

[0056] Figure 20b for Figure 20a A cross-sectional view of the rotating mechanism along point GG;

[0057] Figure 21a This application provides a structural diagram of a rotating mechanism in a flat state according to an embodiment of the present application.

[0058] Figure 21b for Figure 21a A cross-sectional view of the rotating mechanism along FF;

[0059] Figure 22a This is a structural diagram of a rotating mechanism in a folded state, as provided in an embodiment of this application.

[0060] Figure 22b for Figure 22a A cross-sectional view of the rotating mechanism along HH;

[0061] Figure 23 for Figure 16 The assembly structure diagram of the longitudinal transmission component. Detailed Implementation

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] This application provides a foldable electronic device. The foldable electronic device can be a mobile phone, tablet, television, smart wearable products (e.g., smartwatches, smart bracelets), virtual reality (VR) devices, augmented reality (AR) devices, and other terminal products.

[0067] To facilitate understanding of the foldable electronic device 1 provided in the embodiments of this application. Figure 1 This is a structural diagram of a foldable electronic device 1 in a flat state, provided in an embodiment of this application. Figure 2 This is a structural diagram of a foldable electronic device 1 in a hovering state, provided in an embodiment of this application; Figure 3 This is a structural diagram of a foldable electronic device 1 in a folded state, provided in an embodiment of this application. The following is a description of its structure in conjunction with... Figure 1 , Figure 2 as well as Figure 3 The following is a description of a foldable electronic device 1:

[0068] like Figure 1 As shown, the foldable electronic device 1 includes a flexible screen 30. This flexible screen 30 can be an active matrix organic light-emitting diode (AMOLED) display.

[0069] 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.

[0070] In addition, such as Figure 1 As shown, 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 can rotate relative to the rotating mechanism 10, respectively. The first structural member 21 and the second structural member 22 can be a housing or a mid-frame structure of the electronic device.

[0071] The first structural component 21 and the second structural component 22 can be used to support the flexible screen 30, so that the flexible screen 30 can remain as flat as possible during use and to protect the non-display surface of the flexible screen 30.

[0072] For example, a portion of the flexible screen 30 can be fixed to the first structural member 21 via the adhesive layer 40, a portion can be fixed to the second structural member 22 via the adhesive layer 40, and a portion can be fixed to the rotating structure. The adhesive layer 40 can be a thin film layer formed after applying adhesive; the specific form of the adhesive layer 40 is not limited in this embodiment. Furthermore, other electronic components, such as cameras, headphones, earpieces, buttons, and batteries, can also be disposed on the first structural member 21 and the second structural member 22; the other electronic components disposed on the first structural member 21 and the second structural member 22 are not limited in this embodiment.

[0073] The rotating mechanism 10 includes a spindle assembly 100 and a swing arm assembly 300. The swing arm assembly 300 includes two swing arms located on both sides of the spindle assembly (e.g., swing arm 300a on the left and swing arm 300b on the right in the figure). One end of one swing arm 300a is rotatably connected to the spindle assembly 100, and the other end of one swing arm 300a is connected to the first structural member 21. One end of the other swing arm 300b is rotatably connected to the spindle assembly 100, and the other end of the other swing arm 300b is connected to the second structural member 22. With the above arrangement, the first structural member 21 can drive one swing arm 300a to rotate relative to the spindle assembly 100, and the second structural member 22 can drive the other swing arm 300b to rotate relative to the spindle assembly 100.

[0074] like Figure 1 As shown, when the first structural member 21 and the second structural member 22 are in a flat state, the included angle between the two swing arms can be approximately 180° (understandably, a slight deviation in the included angle between the two swing arms is allowed, for example, the included angle can be 165°, 177°, or 185°). At this time, the two swing arms are in a flat state, and the flexible screen 30 is also in a flat state; as Figure 2 As shown, when the first structural member 21 and the second structural member 22 rotate towards each other, the included angle between the first structural member 21 and the second structural member 22 can rotate to a preset value, and the included angle between the two swing arms also rotates to a preset value accordingly. At this time, the two swing arms are in a hovering state, and the flexible screen 30 is also in a hovering state; as shown Figure 3 As shown, when the first structural member 21 and the second structural member 22 are in a folded state, the included angle between the two swing arms can be approximately 0° (understandably, the included angle between the two swing arms is also allowed to have a slight deviation, for example, the included angle can be 1°, 3° or 5°). At this time, the two swing arms are in a folded state, and the flexible screen 30 is also in a folded state.

[0075] Since the flexible screen 30 protrudes towards the main shaft assembly 100 when it is in a folded state, a lifting structure 11' is usually provided in the main shaft assembly 100 to avoid interference between the flexible screen 30 and the main shaft assembly 100. Figure 4 This is a structural diagram of the lifting structure 11' in a flat state in some embodiments; Figure 5 This is a structural diagram showing the lifting structure 11' in a flat state in some embodiments. The following is in conjunction with... Figure 4 as well as Figure 5 The following is a description of a lifting structure 11':

[0076] The lifting structure 11' includes a lifting door panel 50' and two rotating door panels 60'. The lifting door panel 50' is located between the two rotating door panels 60', and the rotating door panels 60' are in contact with the lifting door panel 50'. One rotating door panel 60' is connected to a swing arm. When the two swing arms rotate relative to the main shaft assembly, the two rotating door panels 60' also rotate relative to each other, causing the lifting door panel 50' to move away from the flexible screen 30'. With the above arrangement, when the flexible screen 30' is in a folded state, the movement of the lifting door panel 50' can provide more clearance for the flexible screen 30'. When the two swing arms rotate away from each other relative to the main shaft assembly, the two rotating door panels 60' also rotate away from each other, causing the lifting door panel 50' to move closer to the flexible screen 30'. With the above arrangement, when the flexible screen 30' is in a flat state, the lifting door panel 50' can provide support for the flexible screen 30'.

[0077] However, the lifting door panel 50' in the above embodiment is relatively large, and the main shaft assembly needs to reserve lifting space for the lifting door panel 50', resulting in a large size of the main shaft assembly, which is not conducive to achieving the overall thinness and lightness of the foldable electronic device 1.

[0078] Figure 6 A structural diagram of a rotating mechanism 10 provided in an embodiment of this application; Figure 7 An exploded view of the structure of a rotating mechanism 10 provided in an embodiment of this application. In view of this, refer to... Figure 6 and Figure 7 The rotating mechanism 10 in this embodiment further includes a horizontal slider 210, which is slidably connected to the main shaft assembly 100.

[0079] Reference Figure 6 and Figure 7The spindle assembly 100 may include a base 110. The base 110 may be generally strip-shaped. For ease of explanation, the direction perpendicular to the extension direction of the base 110 is referred to as the first direction X, and the extension direction of the base 110 is referred to as the second direction Y, i.e., the second direction Y is perpendicular to the first direction X; the direction perpendicular to the plane containing the first direction X and the second direction Y is referred to as the third direction Z. Further, the base 110 may also include a first side C1 and a second side C2 disposed opposite to each other along the third direction Z, and the flexible screen 30 may be located on the first side C1 of the base 110.

[0080] Continue to refer to Figure 6 and Figure 7 The horizontal slider 210 includes two sub-sliders 211 arranged along the first direction X. The sub-sliders 211 are slidably connected to the main shaft assembly 100 along the first direction X. For example, the two sub-sliders 211 may both be located on the first side C1 of the base 110, and the two sub-sliders 211 may slide towards each other along the first direction X, or the two sub-sliders 211 may slide away from each other along the first direction X.

[0081] Continue to refer to Figure 6 and Figure 7 The spindle assembly 100 also includes a fixing block 120 connected to the base 110. A sub-slider 211 is arranged along the second direction Y with the fixing block 120, and the sub-slider 211 is slidably connected to the fixing block 120 along the first direction X, so that the sub-slider 211 and the spindle assembly 100 are slidably connected along the first direction X. For example, the fixing block 120 may be located on the first side C1 of the base 110, that is, the fixing block 120 and the horizontal slider 210 are located on the same side of the base 110. The fixing block 120 may be threaded to the base 110, or the fixing block 120 may be bonded to the base 110.

[0082] For example, there can be two fixing blocks 120, and the two fixing blocks 120 are spaced apart along the second direction Y. Correspondingly, two sub-slider blocks 211 can be located between the two fixing blocks 120, and the two ends of the sub-slider blocks 211 along the second direction Y can be slidably connected to one fixing block 120 respectively. By setting two fixing blocks 120, the reliability of the sliding connection between the sub-slider blocks 211 and the fixing blocks 120 is improved.

[0083] Figure 8 A structural diagram of a horizontal slider 210 provided in an embodiment of this application; Figure 9 This is a structural diagram of a fixing block 120 provided in an embodiment of this application. (Refer to...) Figure 8 and Figure 9The fixing block 120 may have a horizontal groove 121 extending along a first direction X, and correspondingly, the sub-slider 211 may have a slide bar 2111 that mates with the horizontal groove 121. For example, the surfaces of each fixing block 120 facing the other fixing block 120 (e.g.) Figure 9 The surface M1 in the middle can have a horizontal groove 121. This horizontal groove 121 is located on the side of the fixed block 120 near the base 110. Each sub-slider 211 can have a slider 2111 on each side opposite to it along the second direction Y, and the slider 2111 is also located on the side of the sub-slider 211 near the base 110. With the above arrangement, the slider 2111 can slide within the horizontal groove 121 to drive the sub-slider 211 to slide relative to the main shaft assembly 100 along the first direction X.

[0084] Of course, in some other embodiments, a slider extending along the first direction X can also be provided on the fixed block 120, and correspondingly, a groove cooperating with the slider 211 can be provided on the sub-slider 211. Alternatively, other sliding connection structures can be used between the base 110 and the sub-slider 211, which are not specifically limited in this embodiment.

[0085] Based on the above structure, continue to refer to Figure 6 and Figure 7 The swing arm assembly 300 further includes two first swing arms 310, which are located on either side of the horizontal slider 210 in a first direction X. One first swing arm 310 is rotatably connected to a sub-slider 211, for example, one first swing arm 310 corresponds to a sub-slider 211 adjacent to it, and the rotation axis of one first swing arm 310 relative to the sub-slider 211 is parallel to the second direction Y. In embodiments where the swing arm assembly 300 includes only two first swing arms 310, one first swing arm 310 constitutes one swing arm 300a, and the other first swing arm 310 constitutes another swing arm 300b.

[0086] As described in the above embodiments, the first structural member 21 is connected to one first swing arm 310, and the second structural member 22 is connected to another first swing arm 310. With this configuration, when the folding electronic device 1 switches between a folded state, a hovering state, and a flat state, the first structural member 21 can drive one first swing arm 310 to rotate relative to the sub-slider 211, and the second structural member 22 can drive the other first swing arm 310 to rotate relative to the sub-slider 211. For ease of explanation, refer to... Figure 7 The axis of rotation of one first swing arm 310 relative to one sub-slider 211 is called the first axis S1, and the axis of rotation of the other first swing arm 310 relative to the other sub-slider 211 is called the second axis S2. The first axis S1 and the second axis S2 are both parallel to the second direction Y, and the first axis S1 and the second axis S2 do not coincide.

[0087] Figure 10 This is a structural diagram of a swing arm component provided in an embodiment of this application. (In conjunction with...) Figure 8 and Figure 10 In a rotating connection between a first swing arm 310 and a sub-slider 211: the sub-slider 211 may include a first arc-shaped groove 212. Correspondingly, the first swing arm 310 may include a first slider 312 and a first body 311, with the first slider 312 engaging with the first arc-shaped groove 212. The following description uses only the first swing arm 310 and the sub-slider 211 with the rotation axis as the first axis S1. For example, the central axis of the first arc-shaped groove 212 is the first axis S1. The first slider 312 is connected to the side of the first body 311 near the sub-slider 211, and the first slider 312 may be approximately arc-shaped; the central axis of the first slider 312 is also the first axis S1. With the above configuration, the first slider 312 can cooperate with the first arc-shaped slide groove 212, and the first slider 312 can slide within the first arc-shaped slide groove 212, so that a first swing arm 310 and a sub-slider 211 can be rotatably connected, and the axis of rotation between the first swing arm 310 and the sub-slider 211 is the first axis S1.

[0088] The number of first arc-shaped grooves 212 in the sub-slider 211 is the same as the number of first sliders 312 in the first swing arm 310. For example, the sub-slider 211 may have two first arc-shaped grooves 212, and the first swing arm 310 may include two first sliders 312, with one first arc-shaped groove 212 and one first slider 312 cooperating. By setting multiple sets of cooperating first arc-shaped grooves 212 and first sliders 312, the transmission effect between the sub-slider 211 and the first swing arm 310 is improved.

[0089] When the two first swing arms 310 rotate from the flat state to the folded state, the two first swing arms 310 rotate towards each other relative to the main shaft assembly 100, and respectively drive the two sub-slider 211 to slide in opposite directions; when the two first swing arms 310 rotate from the folded state to the flat state, the two first swing arms 310 rotate in opposite directions relative to the main shaft assembly 100, and respectively drive the two sub-slider 211 to slide towards each other.

[0090] For example, in a rotatably connected first swing arm 310 and sub-slider 211: when the first swing arm 310 rotates relative to the main shaft assembly 100, the first main body 311 can drive the first slider 312 to slide along the first arc-shaped groove 212, so that the first swing arm 310 and the sub-slider 211 can be rotatably connected. At the same time, the first main body 311 can also drive the sub-slider 211 to slide, so that the sub-slider 211 can slide relative to the main shaft assembly 100 in the first direction X.

[0091] Figure 11a for Figure 6 A cross-sectional view of the rotating mechanism 10 in its flat state along point AA; Figure 11b for Figure 6 A cross-sectional view of the rotating mechanism 10 in its folded state along point AA. (Refer to...) Figure 11a and Figure 11b When the two first swing arms 310 rotate from a flat state to a folded state, the first main body 311 rotates towards the first side C1 of the main shaft assembly 100, and the first slider 312 slides within the first arc-shaped groove 212. Simultaneously, the first main body 311 also drives one sub-slider 211 to move away from the other sub-slider 211, meaning the two sub-slider 211 move away from each other along the first direction X. Both first main bodies 311 rotate towards the first side C1 of the main shaft assembly 100, meaning the two first swing arms 310 rotate towards each other.

[0092] Similarly, when the two first swing arms 310 rotate from a folded state to a flat state, as the first main body 311 rotates towards the second side C2 of the main shaft assembly 100, the first slider 312 slides within the first arc-shaped groove 212. Simultaneously, the first main body 311 also drives one sub-slider 211 to move away from the other sub-slider 211, meaning the two sub-slider 211 move towards each other along the first direction. When both first main bodies 311 rotate towards the second side C2 of the main shaft assembly 100, the two first swing arms 310 rotate in directions away from each other.

[0093] Understandably, when the first structural member 21 and the second structural member 22 rotate toward each other relative to the main shaft assembly 100, the two first swing arms 310 rotate toward each other relative to the main shaft assembly 100. At this time, the flexible screen 30 connected to the first structural member 21 and the flexible screen 30 connected to the second structural member 22 are folded. When the first structural member 21 and the second structural member 22 rotate away from each other relative to the main shaft assembly 100, the two first swing arms 310 rotate away from each other relative to the main shaft assembly 100. At this time, the flexible screen 30 connected to the first structural member 21 and the flexible screen 30 connected to the second structural member 22 are unfolded.

[0094] With the above configuration, while the two first swing arms 310 rotate toward each other relative to the main shaft assembly 100, the two sub-slider 211 slide away from each other along the first direction X, so that a clearance space can be separated between the two sub-slider 211 (for example, it can be a clearance space). Figure 11bAt point M2, the clearance space can accommodate the folded flexible screen 30. While the two first swing arms 310 rotate in opposite directions relative to the main shaft assembly 100, the two sub-slider 211 slide towards each other along the first direction X, so that the two sub-slider 211 come together to support the flat flexible screen 30. Furthermore, since the two sub-slider 211 slide along the first direction X, the rotation mechanism 10 occupies less space in its thickness direction (which is also the third direction Z), which is beneficial to achieving the thinness and lightness of the foldable electronic device 1.

[0095] Meanwhile, since the two sub-slider 211 can slide towards each other or away from each other along the first direction X, it is beneficial to adjust the length of the two first swing arms 310 along the first direction X. Through the above settings, during the folding or unfolding process of the folding electronic device 1, it is beneficial to reduce the phenomenon of compression or stretching of the flexible screen 30 by the rotating mechanism 10.

[0096] In some embodiments, the two sub-sliders 211 can have identical structures, and the two first swing arms 310 can have identical structures. This arrangement improves the manufacturing efficiency of the horizontal slider 210 and the swing arm assembly 300. Furthermore, the number of horizontal sliders 210 can be multiple, and the two sub-sliders 211 within the same horizontal slider 210 can be arranged symmetrically (e.g., ...). Figure 8 In the horizontal slider 210, the left sub-slider 211 can be rotated 180° to obtain the right sub-slider. The two first swing arms 310 in the swing arm assembly 300 can be arranged in a centrally symmetrical manner. The above arrangement is beneficial to improving the regularity of the rotating mechanism 10.

[0097] Continue to refer to Figure 8 The sub-slider 211 may include a first limiting surface 213 and a second limiting surface 214 disposed opposite to each other along the first direction X. For example, the first limiting surface 213 of one sub-slider 211 and the first limiting surface 213 of another sub-slider 211 are disposed facing each other, and the second limiting surface 214 of one sub-slider 211 and the second limiting surface 214 of another sub-slider 211 are disposed opposite to each other. The first limiting surface 213 may include a first sub-surface 213b and a second sub-surface 213a, the second sub-surface 213a being farther away from the base 110 relative to the first sub-surface 213b, and the second sub-surface 213a being closer to the second limiting surface 214 relative to the first sub-surface 213b. The first sub-surface 213b is planar and perpendicular to the first direction X, and the second sub-surface 213a is arc-shaped and curved towards the second limiting surface 214. The second limiting surface 214 is planar and perpendicular to the first direction X.

[0098] Combination Figure 11aAs shown, when the two first swing arms 310 rotate in opposite directions relative to the main shaft assembly 100, the two sub-slider 211 slide towards each other along the first direction X. The first limiting surface 213 of one sub-slider 211 moves towards each other with the first limiting surface 213 of the other sub-slider 211. The two sub-slider 211 stop moving when the first sub-surface 213b of the first limiting surface 213 of the two sub-slider 211 contacts each other. At this time, the two first swing arms 310 are in a flat state.

[0099] Furthermore, when the two sub-slider blocks 211 are in contact, they are located at the center of the base 110. Simultaneously, since the flexible screen 30 is also in a flat state when the two first swing arms 310 are in a flat state, the surface of the sub-slider blocks 211 facing away from the base 110 can provide support for the flexible screen 30. For example, the surface of the sub-slider blocks 211 facing away from the base 110 can be a plane, and this plane is parallel to the first direction X and the second direction Y. This arrangement helps improve the flatness of the flexible screen 30 when it is in a flat state.

[0100] Accordingly, combined Figure 11b As shown, the base 110 may have two folded edges 111 arranged opposite each other along the first direction X. For example, the base 110 may be folded towards the first side C1 on both sides along the first direction X to form folded edges 111. When the two first swing arms 310 rotate toward each other relative to the main shaft assembly 100, the two sub-slider 211 slide away from each other along the first direction X, and the second limiting surface 214 of one sub-slider 211 moves away from the second limiting surface 214 of the other sub-slider 211 in a direction away from each other, and the two sub-slider 211 separate. Until the second limiting surface 214 of one sub-slider 211 contacts a folded edge 111, the two sub-slider 211 stop moving, at which point the two first swing arms 310 are in a folded state.

[0101] Furthermore, when the two sub-slider 211 separate, there is a clearance space between them. Simultaneously, since the flexible screen 30 is also folded when the two first swing arms 310 are in a folded state, the clearance space created by the separation of the two sub-slider 211 facilitates the accommodation of the folded flexible screen 30, preventing any contact or interference with it.

[0102] In summary, the cooperation of the first limiting surface 213 of the two sub-sliders 211 achieves the stopping effect when the two sub-sliders 211 slide towards each other, and at the same time, it also achieves the supporting effect of the sub-sliders 211 on the flexible screen 30; the cooperation of the second limiting surface 214 of the sub-sliders 211 with the folded edge 111 achieves the stopping effect when the two sub-sliders 211 slide away from each other, preventing the two sub-sliders 211 from sliding out of the base 110, and at the same time, it also prevents them from interfering with the flexible screen 30 in the folded state.

[0103] Continue to refer to Figure 8 The first arc-shaped groove 212 can penetrate the sub-slider 211. For example, the first arc-shaped groove 212 can be penetrated from the second limiting surface 214 to the second sub-surface 213a. When the two first swing arms 310 rotate to the flat state, part of the first slider 312 protrudes from the second sub-surface 213a, so that part of the first slider 312 extends out of the first arc-shaped groove 212; when the two first swing arms 310 rotate to the folded state, the first slider 312 is located in the first arc-shaped groove 212.

[0104] Combination Figure 11a As shown, when the two first swing arms 310 rotate in opposite directions relative to the main shaft assembly 100, the first body 311 of the first swing arm 310 drives the first slider 312 to slide within the first arc-shaped groove 212. The sliding direction of the first slider 312 within the first arc-shaped groove 212 is from the end of the first arc-shaped groove 212 near the second limiting surface 214 to the end of the first arc-shaped groove 212 near the second sub-surface 213a. Until the first slider 312 slides to the point where it partially protrudes from the first arc-shaped groove 212, the first body 311 is still in contact with the folded edge 111 of the base 110. At this time, the two first swing arms 310 are in a flat state.

[0105] Combination Figure 11b As shown, when the two first swing arms 310 rotate towards each other relative to the main shaft assembly 100, the first body 311 of the first swing arm 310 drives the first slider 312 to slide within the first arc-shaped groove 212. The sliding direction of the first slider 312 within the first arc-shaped groove 212 is from the end of the first arc-shaped groove 212 near the second sub-surface 213a to the end of the first arc-shaped groove 212 near the second limiting surface 214. This continues until the first slider 312 slides completely back into the first arc-shaped groove 212. At this time, the two first swing arms 310 are in a folded state, and the flexible screen 30 is also in a folded state. Through the above settings, the first slider 312 is prevented from extending between the second sub-surfaces 213a of the two sub-slider 211, thereby preventing the first slider 312 from contacting or interfering with the flexible screen 30.

[0106] In some other embodiments, in order to improve the support effect on the flexible screen 30, the swing arm assembly 300 may also include two back plates 330 for supporting the flexible screen 30. Figure 12a A structural diagram of another rotating mechanism 10 provided in the embodiments of this application in a flat state; Figure 12b This is a structural diagram of another rotating mechanism 10 provided in the embodiment of this application in a folded state.

[0107] Reference Figure 12a and Figure 12bOne end of a back plate 330 is connected to a first swing arm 310, and the other end of the back plate 330 is slidably connected to a sub-slider 211. For example, combined with Figure 8 The sub-slider 211 may also have a connecting arc-shaped groove 217, which may extend from the second limiting surface 214 to the second sub-surface 213a. The back plate 330 may have a connecting arc arm that mates with the connecting arc-shaped groove 217. When the two first swing arms 310 are in a flat state, the end of the back plate 330 near the sub-slider 211 extends beyond the top surface of the sub-slider 211. The planes containing the two back plates 330 are parallel to the planes containing the first direction X and the second direction Y, so that the two back plates 330 can support the flexible screen 30. When the two first swing arms 310 are in a folded state, the end of the back plate 330 near the sub-slider 211 is located inside the sub-slider 211, preventing the back plate 330 from extending into the area between the second sub-surface 213a of the two sub-slider 211, thereby preventing the back plate 330 from interfering with the flexible screen 30.

[0108] Continue to refer to Figure 8 One sub-slider 211 may further include a guide post 215, which is disposed on the first limiting surface 213 and protrudes towards the other sub-slider 211. For example, the guide post 215 may be connected to the first sub-surface 213b. The other sub-slider 211 may further include a guide groove 216 that mates with the guide post 215, the guide groove 216 being recessed from the first sub-surface 213b of the first limiting surface 213 in a direction away from the sub-slider 211. Exemplarily, each sub-slider 211 may include a guide post 215 and a guide groove 216. Furthermore, for each sub-slider 211, the sub-slider 211 may include two guide posts 215 and two guide grooves 216, wherein the guide posts 215 and guide grooves 216 of each sub-slider 211 are alternately arranged along the second direction Y. In the two sub-slider 211s, the guide post 215 of one sub-slider 211 and the guide groove 216 of the other sub-slider 211 are arranged opposite each other along the first direction X.

[0109] With the above configuration, when the two first swing arms 310 rotate from the folded state to the flat state, the two first swing arms 310 rotate in opposite directions relative to the main shaft assembly 100, and the two sub-slider 211 slide towards each other along the first direction X. A guide post 215 of one sub-slider 211 can slide into a guide groove 216 of the other sub-slider 211. The cooperating guide post 215 and guide groove 216 can play a guiding role. Similarly, when the two first swing arms 310 rotate from the flat state to the folded state, the two first swing arms 310 rotate towards each other relative to the main shaft assembly 100, and the two sub-slider 211 slide in opposite directions along the first direction X. A guide post 215 of one sub-slider 211 can slide out from a guide groove 216 of the other sub-slider 211. The cooperating guide post 215 and guide groove 216 can play a guiding role.

[0110] Figure 13 This is a structural diagram of a vertical slider 220 provided in an embodiment of this application. Figure 13 Figures (a) and (b) show the structure of the vertical slider 220 from two different perspectives. In some other embodiments, the rotating mechanism 10 may also include the vertical slider 220. The vertical slider 220 is slidably connected to the main shaft assembly 100 along a third direction Z, and arranged with the horizontal slider 210 along a second direction Y. The third direction Z is perpendicular to the plane containing the first direction X and the second direction Y.

[0111] For example, the vertical slider 220 can be located on the first side C1 of the base 110, that is, the vertical slider 220 and the horizontal slider 210 are located on the same side of the base 110. Further, the vertical slider 220 and the horizontal slider 210 can be arranged along the second direction Y and located on the side of the fixing block 120 opposite to the horizontal slider 210.

[0112] Continue to refer to Figure 7 The spindle assembly 100 may include a slide post 130 connected to the base 110, extending in the third direction Z. A vertical slider 220 is located on one side of the base 110 and has a sliding hole 222 that mates with the slide post 130. For example, the slide post 130 may be connected to a first side C1 of the base 110, and the number of slide posts 130 may be four. Accordingly, the vertical slider 220 may have four sliding holes 222, one sliding hole 222 mates with one slide post 130, wherein the sliding hole 222 extends through the vertical slider 220 in the third direction Z. With the above configuration, the slide post 130 can slide within the sliding hole 222, thereby enabling the spindle assembly 100 to slide relative to the vertical slider 220 in the third direction Z.

[0113] Based on the above structure, combined with Figure 10 and Figure 13The swing arm assembly 300 also includes two second swing arms 320 arranged along the first direction X, and the two second swing arms 320 are located on both sides of the vertical slider 220 in the first direction X, and are rotatably connected to the vertical slider 220. The rotation axis of one second swing arm 320 relative to the vertical slider 220 is parallel to the second direction Y.

[0114] Furthermore, the first structural member 21 is connected to one second swing arm 320, and the second structural member 22 is connected to another second swing arm 320. With this configuration, the first structural member 21 can drive one second swing arm 320 to rotate relative to the vertical slider 220, and the second structural member 22 can drive the other second swing arm 320 to rotate relative to the vertical slider 220. The rotation axis of one second swing arm 320 relative to the vertical slider 220 is a third axis S3, and the rotation axis of the other second swing arm 320 relative to the vertical slider 220 is a fourth axis S4. Both the third axis S3 and the fourth axis S4 are parallel to the second direction Y, and they do not coincide.

[0115] Combination Figure 10 and Figure 13 The vertical slider 220 may include two second arc-shaped grooves 221. Correspondingly, each second swing arm 320 may include a second slider 322 and a second body 321, with one second slider 322 engaging with one second arc-shaped groove 221. For example, the vertical slider 220 may include two second arc-shaped grooves 221 disposed along a first direction X, where the central axis of one second arc-shaped groove 221 is a third axis S3, and the central axis of the other second arc-shaped groove 221 is a fourth axis S4. Two second sliders 322 are connected to both sides of the vertical slider 220. The second sliders 322 may be generally arc-shaped blocks, with the central axis of one second slider 322 being the third axis S3 and the central axis of the other second slider 322 being the fourth axis S4. With the above configuration, a second slider 322 can cooperate with a second arc-shaped slide groove 221 and slide within the second arc-shaped slide groove 221, so that a second swing arm 320 and a vertical slider 220 can be rotatably connected, and the axis of rotation is the third axis S3. The other second swing arm 320 and the vertical slider 220 can also be rotatably connected, and the axis of rotation is the fourth axis S4.

[0116] Figure 14a for Figure 6 A cross-sectional view of the rotating mechanism 10 in its flat state along BB. Figure 14b for Figure 6 A cross-sectional view of the rotating mechanism 10 in its folded state along point BB. (Combined with...) Figure 14a and Figure 14bWhen the two second swing arms 320 rotate from the flat state to the folded state, the two second swing arms 320 rotate towards each other relative to the main shaft assembly 100, and drive the main shaft assembly 100 to slide towards the vertical slider 220; when the two second swing arms rotate from the folded state to the flat state, the two second swing arms 320 rotate away from the main shaft assembly 100, and drive the main shaft assembly 100 to slide away from the vertical slider 220.

[0117] For example, when the second body 321 rotates towards the first side C1 of the main shaft assembly 100, that is, when the two second swing arms 320 rotate towards each other, the second slider 322 slides within the second arc-shaped groove 221, thereby achieving a rotational connection between the second swing arms 320 and the vertical slider 220. Simultaneously, the second body 321 also drives the main shaft assembly 100 to move towards the vertical slider 220. Similarly, when the second body 321 rotates towards the second side C2 of the main shaft assembly 100, that is, when the two second swing arms 320 rotate away from each other, the second slider 322 slides within the second arc-shaped groove 221, thereby achieving a rotational connection between the second swing arms 320 and the vertical slider 220. Simultaneously, the second body 321 also drives the main shaft assembly 100 to move away from the vertical slider 220.

[0118] Understandably, when the first structural member 21 and the second structural member 22 rotate toward each other relative to the main shaft assembly 100, the two second swing arms 320 rotate toward each other relative to the main shaft assembly 100. At this time, the flexible screen 30 connected to the first structural member 21 and the flexible screen 30 connected to the second structural member 22 are folded. When the first structural member 21 and the second structural member 22 rotate away from each other relative to the main shaft assembly 100, the two second swing arms 320 rotate away from each other relative to the main shaft assembly 100. At this time, the flexible screen 30 connected to the first structural member 21 and the flexible screen 30 connected to the second structural member 22 are unfolded.

[0119] With the above configuration, while the two second swing arms 320 rotate toward each other relative to the main shaft assembly 100, the main shaft assembly 100 slides toward the vertical slider 220, preventing the main shaft assembly 100 from protruding outward when the folding electronic device 1 is in the folded state, thereby improving the aesthetics of the appearance; while the two second swing arms 320 rotate away from each other relative to the main shaft assembly 100, the main shaft assembly 100 slides away from the vertical slider 220, avoiding contact and interference with the second swing arms 320.

[0120] In some embodiments, the vertical slider 220 can be symmetrically arranged along the second direction Y, and the two second swing arms 320 can have identical structures. This arrangement improves the manufacturing efficiency of the vertical slider 220 and the swing arm assembly 300. Furthermore, the two second swing arms 320 in the swing arm assembly 300 can be centrally symmetrically arranged, which improves the regularity of the rotating mechanism 10.

[0121] Continue to refer to Figure 13 The second arc-shaped groove 221 can penetrate the vertical slider 220. For example, the vertical slider 220 may include a third limiting surface 223 and a fourth limiting surface 224 disposed opposite each other along a third direction Z, with the third limiting surface 223 facing away from the base 110 relative to the fourth limiting surface 224. The vertical slider 220 may also include a first connecting surface 225 and a second connecting surface 226 disposed opposite each other along a first direction X, and the first connecting surface 225 and the second connecting surface 226 are connected between the third limiting surface 223 and the fourth limiting surface 224. A second arc-shaped groove 221 can simultaneously penetrate the first connecting surface 225, the fourth limiting surface 224, and the third limiting surface 223; for example, a second arc-shaped groove 221 can sequentially penetrate the third limiting surface 223, the first connecting surface 225, the fourth limiting surface 224, and the third limiting surface 223. With the above configuration, a second arc-shaped groove 221 forms openings A1 and A2 on the third limiting surface 223, wherein opening A1 can be located on the left side of the figure, and opening A2 can be located on the right side of the figure. Similarly, another second arc-shaped groove 221 can simultaneously penetrate the second connecting surface 226, the fourth limiting surface 224, and the third limiting surface 223. For example, another second arc-shaped groove 221 can sequentially penetrate the third limiting surface 223, the second connecting surface 226, the fourth limiting surface 224, and the third limiting surface 223. With the above configuration, another second arc-shaped groove 221 forms openings A3 and A4 on the third limiting surface 223, wherein opening A4 can be located on the right side of the figure. Figure 13 On the left side of the image, opening A3 can be located... Figure 13 On the right side of the middle.

[0122] Reference Figure 14a and Figure 14b When the two second swing arms 320 rotate to the flat state, a portion of a second slider 322 protrudes from the third limiting surface 223, and a portion of a second body 321 is located between the fourth limiting surface 224 and the base 110, so that a portion of a second slider 322 extends out from a second arc-shaped groove 221; when the two second swing arms 320 rotate to the folded state, a second slider 322 is located in a second arc-shaped groove 221.

[0123] Combination Figure 13 , Figure 14a as well as Figure 14bAs shown, when the two second swing arms 320 rotate in opposite directions relative to the main shaft assembly 100, the second body 321 of the second swing arm 320 drives the second slider 322 to slide within the second arc-shaped groove 221. The sliding direction of one second slider 322 within one arc-shaped groove 221 is from opening A1 to opening A2; the sliding direction of the other second slider 322 within the other arc-shaped groove 221 is from opening A3 to opening A4. This continues until the second slider 322 partially protrudes from the third limiting surface 223, causing it to partially extend out of the second arc-shaped groove 221. Simultaneously, the second body 321 moves towards one end of the second slider 322 (e.g.,...). Figure 14a At point B1, the vertical slider 220 can be rotated to the side closer to the base 110, thereby causing the second body 321 to push the base 110 of the spindle assembly 100 to move away from the fourth limiting surface 224 of the vertical slider 220, and allowing a portion of the second body 321 to be positioned between the fourth limiting surface 224 and the base 110. At this time, the two second swing arms 320 are in a flat state. This arrangement helps to avoid contact and interference between the second body 321 and the spindle assembly 100.

[0124] When the two second swing arms 320 rotate toward each other relative to the main shaft assembly 100, the second body 321 of the second swing arm 320 drives the second slider 322 to slide within the second arc-shaped groove 221. The sliding direction of one second slider 322 within one arc-shaped groove 221 is from opening A2 to opening A1; the sliding direction of the other second slider 322 within the other arc-shaped groove 221 is from opening A4 to opening A3. Simultaneously, the end of the second body 321 near the second slider 322 can rotate to the side of the vertical slider 220 away from the base 110, thereby causing the base 110 of the main shaft assembly 100 to move toward the fourth limiting surface 224 of the vertical slider 220 until the fourth limiting surface 224 contacts the base 110. At this time, the two second swing arms 320 are in a folded state. The above-mentioned design helps to prevent the spindle assembly 100 from protruding outward when the foldable electronic device 1 is in a folded state, thereby improving the aesthetics of the appearance.

[0125] Furthermore, the two second arc-shaped slides 221 can be interconnected. For example, the opening A2 of one second arc-shaped slide 221 can be connected to the opening A4 of the other second arc-shaped slide 221. This arrangement helps to reduce the size of the vertical slider 220 along the first direction X, and consequently, reduces the size of the rotating mechanism 10. Correspondingly, when the two second swing arms 320 rotate to a flat state, one second slider 322 overlaps with the other second slider 322 along the second direction Y, and the two second sliders 322 are staggered along the first direction X. This arrangement ensures that the two second sliders 322 extend from the opening A1 of the same second arc-shaped slide 221, and avoids interference between the two second sliders 322.

[0126] Figure 15a for Figure 6 A cross-sectional view of the rotating mechanism 10 in its flat state along the CC direction; Figure 15b for Figure 6 A cross-sectional view of the rotating mechanism 10 in its folded state along the CC direction. (Refer to...) Figure 15a and Figure 15b The end of the sliding column 130 facing away from the base 110 may have a stop block 131. For example, the vertical slider 220 also includes a countersunk hole 227 that mates with the stop block 131. The countersunk hole 227 is located at the end of the sliding hole 222 facing away from the base 110 and communicates with the sliding hole 222. The countersunk hole 227 coincides with the central axis S5 of the sliding hole 222, and the inner diameter of the countersunk hole 227 is larger than the inner diameter of the sliding hole 222. When the two second swing arms 320 rotate to the flat state, the vertical slider 220 contacts the stop block 131; when the two second swing arms 320 rotate to the folded state, the vertical slider 220 contacts the base 110. For example, when the two second swing arms 320 rotate in opposite directions, the base 110 moves away from the vertical slider 220 until the stop block 131 of the slide post 130 contacts the bottom of the countersunk hole 227, so that the mating stop block 131 and the countersunk hole 227 can play a limiting role, preventing the base 110 from moving further. At this time, the two second swing arms 320 are in a flat state. When the two second swing arms 320 rotate towards each other, the base 110 moves closer to the vertical slider 220 until the fourth limiting surface 224 of the vertical slider 220 contacts the base 110, thereby preventing the base 110 from moving further. At this time, the two second swing arms 320 are in a folded state.

[0127] Continue to refer to Figure 10In the first swing arm 310 and the second swing arm 320 located on the same side of the spindle assembly 100, the first body 311 and the second body 321 are connected. For example, the first body 311 and the second body 321 can be welded together, or the first body 311 and the second body 321 can also be an integrally formed structure. With the above arrangement, the first swing arm 310 and the second swing arm 320 located on the left side of the spindle assembly 100 rotate synchronously, and the first swing arm 310 and the second swing arm 320 located on the right side of the spindle assembly 100 rotate synchronously.

[0128] Furthermore, the first swing arm 310 and the second swing arm 320 located on one side of the spindle assembly 100 constitute a swing arm member 300a, and the first swing arm 310 and the second swing arm 320 located on the other side of the spindle assembly 100 constitute another swing arm member 300b. For ease of explanation, the swing arm member located on the left side of the spindle assembly 100 will be referred to as the first swing arm member 300a, and the swing arm member located on the right side of the spindle assembly 100 will be referred to as the second swing arm member 300b.

[0129] Furthermore, the rotation axis of the second swing arm 320 relative to the vertical slider 220 is spaced apart from the rotation axis of the first swing arm 310 relative to the vertical slider 220. Combined Figure 7 As shown, the first arc-shaped groove 212 of the sub-slider 211 on the left and the second arc-shaped groove 221 on the left of the vertical slider 220 are not concentric. In the first swing arm 310 and the second swing arm 320 on the left side of the main shaft assembly 100, the rotation axis of the first swing arm 310 relative to the sub-slider 211 is the first axis S1, and the rotation axis of the second swing arm 320 relative to the vertical slider 220 is the third axis S3. The first axis S1 and the third axis S3 are both parallel to the second direction Y, and the first axis S1 and the third axis S3 are spaced apart in the first direction X. The first arc-shaped groove 212 of the sub-slider 211 on the right and the second arc-shaped groove 221 of the vertical slider 220 on the right are not concentric. In the first swing arm 310 and the second swing arm 320 on the right side of the main shaft assembly 100: the rotation axis of the first swing arm 310 relative to the sub-slider 211 is the second axis S2, and the rotation axis of the second swing arm 320 relative to the vertical slider 220 is the fourth axis S4. The second axis S2 and the fourth axis S4 are both parallel to the second direction Y, and the second axis S2 and the fourth axis S4 are spaced apart in the first direction X.

[0130] With the above settings, the first swing arm 310 and the second swing arm 320 located on the same side of the main spindle assembly 100 will generate a phase difference during the swing process, which will cause the first swing arm 310 to drive the sub-slider 211 to slide along the first direction X, and at the same time cause the second swing arm 320 to drive the vertical slider 220 to slide along the third direction Z.

[0131] Furthermore, by setting the vertical slider 220 and the horizontal slider 210, synchronous rotation between the first swing arm 300a and the second swing arm 300b can be achieved. That is, when the first swing arm 300a rotates towards the first side C1 of the main spindle assembly 100, the second swing arm 300b also rotates towards the first side C1 of the main spindle assembly 100; when the first swing arm 300a rotates away from the first side C1 of the main spindle assembly 100, the second swing arm 300b also rotates away from the first side C1 of the main spindle assembly 100. Through the above settings, mutual rotation and opposite rotation between the first swing arm 300a and the second swing arm 300b can be achieved.

[0132] In this embodiment, the number of the first swing arm 310 and the second swing arm 320 in a swing arm component is not specifically limited. The number of the first swing arm 310 and the second swing arm 320 in the swing arm component can be adjusted according to the size of the foldable electronic device 1.

[0133] For example, one of the first swing arm components 300a or the second swing arm component 300b includes two first swing arms 310 and one second swing arm 320. The two first swing arms 310 are located on both sides of the second swing arm 320 along the second direction Y and are symmetrically arranged with respect to the second swing arm 320. The swing arms located on both sides of the main shaft assembly 100 can be symmetrically arranged to improve the motion stability of the folding electronic device 1. For example, the first swing arm component 300a may include two first swing arms 310 and one second swing arm 320, and in the first swing arm component 300a, the two first swing arms 310 are symmetrically arranged with respect to the second swing arm 320; the second swing arm component 300b may also include two first swing arms 310 and one second swing arm 320, and in the second swing arm component 300b, the two first swing arms 310 are symmetrically arranged with respect to the second swing arm 320.

[0134] Accordingly, there can be two horizontal sliders 210, located on either side of the vertical slider 220 along the second direction Y, and symmetrically arranged about the vertical slider 220. With this arrangement, the vertical slider 220 can cooperate with two second swing arms 320, and one horizontal slider 210 can cooperate with two first swing arms 310 arranged along the first direction X. This arrangement helps to increase the length of the rotating mechanism 10 along the second direction Y, facilitating adaptation to foldable electronic devices 1 of corresponding sizes.

[0135] Continue to refer to Figure 7 The rotating mechanism 10 may also include a damping assembly 400, which may include two damping elements. Figure 16 An exploded view of a damping element in a rotating mechanism 10 provided in an embodiment of this application. (Refer to...) Figure 16One damping element is installed in one swing arm component. For example, the two damping elements are a first damping element 400a and a second damping element 400b, with the first damping element 400a installed inside the first swing arm component 300a and the second damping element 400b installed inside the second swing arm component 300b.

[0136] In some embodiments, the first damping element 400a and the second damping element 400b may have the same structure. This arrangement improves the manufacturing efficiency of the damping assembly 400. Furthermore, the first damping element 400a and the second damping element 400b may be symmetrically arranged relative to the main shaft assembly 100, which improves the regularity of the rotating mechanism 10 and enhances the motion balance of the rotating mechanism 10.

[0137] When the two swing arms rotate to the flat position, the damping assembly 400 can drive the two swing arms to stop rotating. For example, when the first swing arm 300a and the second swing arm 300b rotate to the flat position, the damping assembly 400 drives the first swing arm 300a and the second swing arm 300b to stop rotating. With the above settings, when the two swing arms rotate to the flat position and no external force is applied, the damping assembly 400 can maintain the flat position of the two swing arms, realizing the self-opening of the folding electronic device 1.

[0138] When the included angle between the two swing arms equals a preset value, the damping assembly 400 can drive the two swing arms to stop rotating. For example, when the first swing arm 300a and the second swing arm 300b rotate to the point where the included angle between them equals the preset value, and the first swing arm 300a and the second swing arm 300b are in a hovering state, the damping assembly 400 drives the first swing arm 300a and the second swing arm 300b to stop rotating. Through the above settings, when the included angle between the two swing arms equals the preset value, the damping assembly 400 drives the two swing arms to stop rotating, thereby stopping the first structural member 21 and the second structural member 22 from rotating, thus achieving the hovering of the folding electronic device 1.

[0139] When the two swing arms rotate to the folded state, the damping assembly 400 can drive the two swing arms to stop rotating. For example, when the first swing arm 300a and the second swing arm 300b rotate to the folded state, the damping assembly 400 drives the first swing arm 300a and the second swing arm 300b to stop rotating. Through the above settings, when the two swing arms rotate to the folded state and no external force is applied, the damping assembly 400 can maintain the folded state of the two swing arms, realizing the self-closing of the folding electronic device 1.

[0140] Figure 17 A side view of a rotating mechanism 10 provided in an embodiment of this application; Figure 18 for Figure 17 A cross-sectional view of the rotating mechanism 10 along DD.

[0141] Combination Figure 8 , Figure 17 and Figure 18 As shown, the sub-slider 211 has a protrusion 218 and a recess 219 on the side near the rocker arm member, with the recess 219 located on the side of the protrusion 218 near the main shaft assembly 100. Exemplarily, a portion of the second limiting surface 214 of the sub-slider 211 may be recessed towards the first limiting surface 213 to form the recess 219, and a portion of the second limiting surface 214 adjacent to the recess 219 forms the protrusion 218. The recess 219 is closer to the base 110 than the protrusion 218. The side of the recess 219 facing away from the protrusion 218 is adjacent to the bottom surface of the sub-slider 211, and the side of the protrusion 218 facing away from the recess 219 is adjacent to the top surface of the sub-slider 211.

[0142] Figure 19 for Figure 17 A cross-sectional view of the rotating mechanism 10 along EE. Accordingly, combined with... Figure 16 and Figure 19 As shown, the damping element may include a roller 410 and an elastic element 420. For example, the swing arm may have a groove, and the roller 410 and the elastic element 420 may be installed in the groove. The roller 410 may be located between the sub-slider 211 and the elastic element 420, and the extension direction of the roller 410 is parallel to the second direction Y. The elastic element 420 is used to drive the roller 410 to abut against the sub-slider 211. Exemplarily, the peripheral surface of the roller 410 may contact the recess 219 or the protrusion 218 of the sub-slider 211. When the elastic element 420 applies an external force to the peripheral surface of the roller 410, the roller 410 may roll relative to the sub-slider 211. For example, the roller 410 may roll from the protrusion 218 of the sub-slider 211 to the recess 219 of the sub-slider 211, or the roller 410 may roll from the protrusion 218 of the sub-slider 211 to the top surface of the sub-slider 211.

[0143] The elastic element 420 can be a compression spring. In some embodiments, the extension direction of the elastic element 420 can be parallel to the first direction X, and the elastic element 420 contacts the roller 410 so that the elastic restoring force of the elastic element 420 can abut against the circumferential surface of the roller 410 along the first direction X.

[0144] Figure 20a A structural diagram of a rotating mechanism 10 in a hovering state provided in an embodiment of this application; Figure 20b for Figure 20a A cross-sectional view of the rotating mechanism 10 along point GG. (Combined with...) Figure 20a and Figure 20bWhen the included angle between the two swing arms is equal to a preset value, the elastic element 420 is in a first compressed state, and the elastic element 420 is used to drive the roller 410 to stop rolling relative to the protrusion 218. For example, when the included angle between the two swing arms is equal to the preset value, since the elastic element 420 is in the first compressed state, the elastic restoring force of the elastic element 420 pushes the roller 410 against the protrusion 218 of the sub-slider 211. At this time, the roller 410 is in force balance, causing the roller 410 to stop rotating. When the roller 410 stops rotating, the compression amount of the elastic element 420 does not change, so that the elastic restoring force of the elastic element 420 remains unchanged. Since the damping element is installed inside the swing arm, the swing arm stops rotating relative to the main shaft assembly 100. As shown in the above embodiment, when the two swing arms can stop rotating relative to the main shaft assembly 100, the two swing arms are in a suspended state.

[0145] Figure 21a A structural diagram of a rotating mechanism 10 in a flat state provided in an embodiment of this application; Figure 21b for Figure 21a A cross-sectional view of the rotating mechanism 10 along FF. (Combined with...) Figure 21a and Figure 21b As described above, when the two swing arms rotate to the flat state, the elastic element 420 is in a second compressed state, and the roller 410 contacts the recess 219. The length of the elastic element 420 in the second compressed state is greater than the length of the elastic element 420 in the first compressed state. At this time, to make the roller 410 roll from the recess 219 to the protrusion 218, the elastic element 420 needs to be further compressed, causing it to change from the second compressed state to the first compressed state. This means the elastic element 420 continues to compress and deform. The elastic restoring force of the elastic element 420 will have a damping effect, preventing the roller 410 from rolling from the recess 219 to the protrusion 218 when the two swing arms rotate to the flat state and no external force is applied. This maintains the flat state of the two swing arms, enabling the self-opening of the folding electronic device 1.

[0146] Figure 22a This is a structural diagram of a rotating mechanism 10 in a folded state, as provided in an embodiment of this application. Figure 22b for Figure 22a A cross-sectional view of the rotating mechanism 10 along HH. (Combined with...) Figure 22a and Figure 22bWhen the two swing arms rotate to the folded state, the elastic element 420 is in a third compression state, and the roller 410 contacts the side of the protrusion 218 away from the main shaft assembly 100. The length of the elastic element 420 in the third compression state is greater than the length of the elastic element 420 in the second compression state. For example, the side of the protrusion 218 away from the main shaft assembly 100 can be the top surface of the sub-slider 211. At this time, to make the roller 410 roll from the top surface to the protrusion 218, the elastic element 420 needs to be further compressed, causing it to change from the third compression state to the first compression state. This means the elastic element 420 continues to compress and deform. The elastic restoring force of the elastic element 420 will have a damping effect, preventing the roller 410 from rolling from the top surface to the protrusion 218 when the two swing arms rotate to the folded state and no external force is applied. This maintains the folded state of the two swing arms, achieving the self-closing of the folding electronic device 1.

[0147] In some other embodiments, the extension direction of the elastic member 420 may also be perpendicular to the first direction X. For example, a transmission structure may be provided between the elastic member 420 and the roller 410 to change the transmission direction of the elastic restoring force of the elastic member 420, so that the transmission structure can abut against the circumferential surface of the roller 410 along the first direction X.

[0148] Continue to refer to Figure 19 The damping element may further include a lateral transmission element 440 and a longitudinal transmission element 430 located between the roller 410 and the elastic element 420. The elastic element 420 may contact one end of the lateral transmission element 440, and the end of the lateral transmission element 440 opposite to the elastic element 420 may contact the longitudinal transmission element 430. Further, the end of the longitudinal transmission element 430 opposite to the lateral transmission element 440 contacts the roller 410.

[0149] Accordingly, the first swing arm 310 may further include a transverse slide groove 313 and a longitudinal slide groove 314 that are interconnected, and the second swing arm 320 may further include a receiving groove 323 that communicates with the transverse slide groove 313. For example, the extending direction of the transverse slide groove 313 may be parallel to the first direction X, the extending direction of the longitudinal slide groove 314 may be parallel to the second direction Y, and the extending direction of the receiving groove 323 may also be parallel to the second direction Y. Through the above arrangement, the transverse slide groove 313, the longitudinal slide groove 314, and the receiving groove 323 are all connected together.

[0150] The transverse transmission member 440 is slidably disposed within the transverse groove 313 along the second direction Y, and the longitudinal transmission member 430 is slidably disposed within the longitudinal groove 314 along the first direction X. With this arrangement, the transverse transmission member 440 and the longitudinal transmission member 430 can be installed within the first swing arm 310. At least a portion of the elastic member 420 can be located within the receiving groove 323 of the second swing arm 320, and the extending direction of the elastic member 420 is parallel to the second direction Y. For example, a portion of the elastic member 420 can extend into the transverse transmission member 440 from the receiving groove 323; that is, a portion of the elastic member 420 is installed within the receiving groove 323, and another portion is installed within the transverse groove 313. With this arrangement, the elastic member 420 can be installed within both the first and second swing arms 310. Furthermore, the end of the longitudinal transmission member 430 that is away from the transverse transmission member 440 can contact the roller 410, and the end of the longitudinal slide groove 314 that is away from the transverse slide groove 313 can be connected to the outside, so that the roller 410 can be located between the longitudinal transmission member 430 and the sub-slider 211, and the roller 410 can contact the sub-slider 211.

[0151] Based on the above configuration, when the roller 410 rolls relative to the sub-slider 211, it can drive the longitudinal transmission member 430 to move along the first direction X, thereby causing the transverse transmission member 440 to squeeze the elastic member 420 along the second direction Y. The squeezed elastic member 420 generates an elastic restoring force, which can play a damping role.

[0152] Furthermore, in an embodiment where a rocker arm includes two first rocker arms 310 and a second rocker arm 320, the two first rocker arms 310 are located on both sides of the second rocker arm 320 along the second direction Y. One end of the receiving groove 323 in the second rocker arm 320 is connected to the transverse sliding groove 313 of one of the first rocker arms 310, and the other end of the receiving groove 323 of the second rocker arm 320 is connected to the transverse sliding groove 313 of the other first rocker arm 310. The transverse sliding groove 313 in each first rocker arm 310 is connected to the longitudinal sliding groove 314.

[0153] Accordingly, each damping element can be symmetrically arranged about the second swing arm 320. Each damping element may include two rollers 410, one of which is located between the first swing arm 310 and a sub-slider 211. The damping element may also include two lateral transmission elements 440 and two longitudinal transmission elements 430. The two lateral transmission elements 440 are located at both ends of the elastic element 420, and the two longitudinal transmission elements 430 are also located at both ends of the elastic element 420. One lateral transmission element 440 is located between the elastic element 420 and one longitudinal transmission element 430, and one roller 410 is located between one longitudinal transmission element 430 and the sub-slider 211. With this arrangement, the two rollers 410 can roll simultaneously, thereby causing the two longitudinal transmission elements 430 to simultaneously drive the two lateral transmission elements 440 to move. The two ends of the elastic element 420 can be simultaneously compressed by the two lateral transmission elements 440, causing the compressed elastic element 420 to generate an elastic restoring force, which provides a damping effect. This helps to ensure that the structure within the same swing arm is subjected to uniform force, and it helps to improve the smoothness of the movement of the rotating mechanism 10.

[0154] Continue to refer to Figure 19 The transverse transmission member 440 can be generally block-shaped. The transverse transmission member 440 may include a first protrusion 442 and a second protrusion 441 arranged opposite to each other along the second direction Y. The first protrusion 442 extends into the elastic member 420 and serves to guide the elastic member 420. The second protrusion 441 is used to cooperate with the transverse slide groove 313 so that the transverse transmission member 440 can slide along the second direction Y within the transverse slide groove 313.

[0155] The end of the transverse transmission member 440 facing away from the elastic member 420 also has a first inclined surface 443. For example, in a direction parallel to the first direction X and pointing towards the roller 410, the distance between the first inclined surface 443 and the elastic member 420 gradually decreases.

[0156] Figure 23 for Figure 16 Assembly structure diagram of longitudinal transmission component 430. (Combined with...) Figure 19 and Figure 23 The longitudinal transmission member 430 has a second inclined surface 4433 at the end opposite to the roller 410, and the first inclined surface 443 contacts the second inclined surface 4433. For example, the second inclined surface 4433 can be parallel to the first inclined surface 443, and the distance between the second inclined surface 4433 and the elastic member 420 gradually decreases in the direction parallel to the first direction X and pointing towards the roller 410. With this configuration, when the compression of the elastic member 420 is small, the elastic restoring force of the elastic member 420 is small; however, this small elastic restoring force can be amplified by the first inclined surface 443 and the second inclined surface 4433, thereby increasing the damping effect.

[0157] The longitudinal transmission component 430 can be an integrally formed structure, or the longitudinal transmission component 430 can also include multiple transmission structures arranged along the first direction X, and the multiple transmission structures can transmit power along the first direction X.

[0158] For example, the longitudinal transmission component 430 includes a connecting slider 431, a connecting disk 432, and a connecting wedge 433. The connecting disk 432 is connected between the connecting slider 431 and the connecting wedge 433. The connecting slider 431 is connected between the connecting disk 432 and the roller 410. The surface of the connecting slider 431 that contacts the roller 410 is an inclined surface. The surface of the connecting wedge 433 that contacts the transverse transmission component 440 is a second inclined surface 4433.

[0159] For example, the connecting slider 431 can be generally block-shaped, wherein the surface of the connecting slider 431 that contacts the roller 410 is an abutting slope 4311. The abutting slope 4311 can face the sub-slider 211, and the distance between the abutting slope 4311 and the base 110 gradually decreases along the first direction X, in the direction pointing towards the roller 410. By providing the abutting slope 4311, it is beneficial for the abutting slope 4311 to cooperate with the peripheral surface of the roller 410, so that the abutting slope 4311 can drive the roller 410 to roll. The end of the connecting slider 431 away from the abutting slope 4311 has a slider boss 4313. Correspondingly, the edge of the disk 432 also has a disk boss 4321, which can cooperate with the slider boss 4313 of the connecting slider 431, so that the disk 432 can abut against the connecting slider 431.

[0160] Furthermore, the connecting inclined block 433 may include two inclined surfaces arranged opposite each other along the first direction X. The two inclined surfaces may be parallel to each other. The inclined surface facing the transverse transmission member 440 is the second inclined surface 4433, and the inclined surface facing the disk 432 is the rolling inclined surface 4431. The rolling inclined surface 4431 is used to cooperate with the circumferential surface of the disk 432 so that the disk 432 can roll relative to the rolling inclined surface 4431.

[0161] With the above configuration, when the roller 410 moves along the first direction X, the roller 410 drives the connecting slider 431 to slide along the first direction X in the longitudinal groove 314, thereby causing the connecting slider 431 to drive the disk 432 to rotate and simultaneously slide along the first direction X in the longitudinal groove 314. The disk 432 drives the connecting inclined block 433 to slide along the first direction X in the longitudinal groove 314. Due to the mutual cooperation between the first inclined surface 443 and the second inclined surface 4433, the transverse transmission member 440 slides along the second direction Y in the transverse groove 313, thereby causing the elastic member 420 connected to it to undergo compression deformation, so that the compressed elastic member 420 generates an elastic restoring force, which can play a damping effect.

[0162] Furthermore, since rolling friction can be achieved between the disk 432 and the connecting slider 431, it is beneficial to reduce the loss of power transmitted between the disk 432 and the connecting slider 431.

[0163] 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: Spindle assembly; A horizontal slider includes two sub-sliders arranged along a first direction, the sub-sliders being slidably connected to the main shaft assembly along the first direction; The swing arm assembly includes two first swing arms, which are located on both sides of the horizontal slider in a first direction. One first swing arm is rotatably connected to one of the sub-sliders, and the rotation axis of one first swing arm relative to the sub-slider is parallel to a second direction, which is the extension direction of the main shaft assembly and is perpendicular to the first direction. In a rotating connection between a first swing arm and a sub-slider: the sub-slider includes a first arc-shaped groove, the first swing arm includes a first slider and a first body, the first slider cooperates with the first arc-shaped groove, and when the first swing arm rotates relative to the main shaft assembly, the first body drives the first slider to slide along the first arc-shaped groove, and also drives the sub-slider to slide; When the two first swing arms rotate from the flat state to the folded state, the two first swing arms rotate towards each other relative to the main shaft assembly, and respectively drive the two sub-sliders to slide in opposite directions; when the two first swing arms rotate from the folded state to the flat state, the two first swing arms rotate in opposite directions relative to the main shaft assembly, and respectively drive the two sub-sliders to slide towards each other.

2. The rotating mechanism according to claim 1, characterized in that, The sub-slider includes a first limiting surface and a second limiting surface arranged opposite to each other along the first direction. When the two first swing arms rotate to a flat state, the first limiting surfaces of the two sub-sliders contact each other. The spindle assembly includes a base having two folded edges arranged opposite each other along the first direction. When the two first swing arms rotate to the folded state, the second limiting surface of one of the sub-slider contacts one of the folded edges.

3. The rotating mechanism according to claim 2, characterized in that, The first limiting surface includes a first sub-surface and a second sub-surface. The second sub-surface is far away from the base relative to the first sub-surface, and the second sub-surface is close to the second limiting surface relative to the first sub-surface. The first arc-shaped groove extends from the second limiting surface to the second sub-surface. When the two first swing arms rotate to the flat state, part of the first slider protrudes from the second sub-surface. When the two first swing arms rotate to the folded state, the first slider is located in the first arc-shaped groove.

4. The rotating mechanism according to claim 3, characterized in that, One of the sub-sliders further includes a guide post disposed on the first limiting surface and protruding toward the other sub-slider; the other sub-slider further includes a guide groove cooperating with the guide post, the guide groove being recessed from the first limiting surface toward the direction away from one of the sub-sliders.

5. The rotating mechanism according to any one of claims 1-4, characterized in that, The spindle assembly includes a base and a fixing block, the fixing block being connected to the base and having a horizontal groove extending along the first direction; the sub-slider is located on one side of the base and arranged with the fixing block along the second direction, the sub-slider having a slide bar that engages with the horizontal groove.

6. The rotating mechanism according to any one of claims 1-4, characterized in that, The rotating mechanism further includes: A vertical slider is slidably connected to the main shaft assembly along a third direction and arranged with the horizontal slider along the second direction, wherein the third direction is perpendicular to the plane containing the first direction and the second direction; The swing arm assembly further includes two second swing arms, which are located on both sides of the vertical slider in the first direction and are rotatably connected to the vertical slider. The rotation axis of one of the second swing arms relative to the vertical slider is parallel to the second direction. When the two second swing arms rotate from the flat state to the folded state, the two second swing arms rotate towards each other relative to the main shaft assembly, and drive the main shaft assembly to slide towards the vertical slider; when the two second swing arms rotate from the folded state to the flat state, the two second swing arms rotate away from the main shaft assembly, and drive the main shaft assembly to slide away from the vertical slider.

7. The rotating mechanism according to claim 6, characterized in that, The vertical slider includes two second arc-shaped grooves, and the central axes of the two second arc-shaped grooves are parallel to each other. Each second swing arm includes a second slider and a second body. One second slider cooperates with one second arc-shaped groove. When the second swing arm rotates relative to the vertical slider, the second body drives the second slider to slide in the second arc-shaped groove and drives the main shaft assembly to slide.

8. The rotating mechanism according to claim 7, characterized in that, In the first and second swing arms located on the same side of the main shaft assembly: the first body and the second body are connected; the rotation axis of the second swing arm relative to the vertical slider is spaced apart from the rotation axis of the first swing arm relative to the vertical slider.

9. The rotating mechanism according to claim 8, characterized in that, The vertical slider includes a third limiting surface and a fourth limiting surface arranged opposite to each other along a third direction. The third limiting surface is away from the main shaft assembly relative to the fourth limiting surface. The vertical slider includes a first connecting surface and a second connecting surface arranged opposite to each other along the first direction. The first connecting surface and the second connecting surface are respectively connected between the third limiting surface and the fourth limiting surface. One second arc-shaped groove simultaneously penetrates the first connecting surface, the fourth limiting surface, and the third limiting surface; another second arc-shaped groove simultaneously penetrates the second connecting surface, the fourth limiting surface, and the third limiting surface; when the two second swing arms rotate to the flat state, a portion of one second slider protrudes from the third limiting surface, and a portion of one second main body is located between the fourth limiting surface and the main shaft assembly; when the two second swing arms rotate to the folded state, one second slider is located within one second arc-shaped groove.

10. The rotating mechanism according to claim 9, characterized in that, The two second arc-shaped slides are interconnected. When the two second swing arms rotate to the flat state, one second slider overlaps with the other second slider along the second direction, and one second slider and the other second slider are staggered along the first direction.

11. The rotating mechanism according to claim 7, characterized in that, The spindle assembly includes a slide column and a base, the slide column being connected to the base and extending along the third direction; the vertical slider is located on one side of the base and has a sliding hole that mates with the slide column.

12. The rotating mechanism according to claim 11, characterized in that, The sliding column has a stop block at one end away from the base; when the two second swing arms rotate to the flat state, the vertical slider contacts the stop block, and when the two second swing arms rotate to the folded state, the vertical slider contacts the base.

13. The rotating mechanism according to any one of claims 7-12, characterized in that, The first swing arm and the second swing arm, located on the same side of the spindle assembly, constitute a swing arm component; The rotation mechanism further includes a damping assembly, which comprises two damping elements, one of which is mounted on one of the swing arms. When the two swing arms rotate to a flat state, the damping assembly drives the two swing arms to stop rotating. When the included angle between the two swing arms is equal to a preset value, the damping assembly drives the two swing arms to stop rotating. When the two swing arms rotate to a folded state, the damping assembly drives the two swing arms to stop rotating.

14. The rotating mechanism according to claim 13, characterized in that, The sub-slider has a protrusion and a recess on the side near the swing arm, and the recess is located on the side of the protrusion near the main shaft assembly; The damping element includes a roller and an elastic element. The roller is located between the sub-slider and the elastic element, and the extension direction of the roller is parallel to the second direction. The elastic element drives the roller to abut against the sub-slider along the first direction. When the included angle between the two swing arms is equal to a preset value, the elastic element is in a first compression state, and the roller contacts the protrusion; when the two swing arms rotate to a flat state, the elastic element is in a second compression state, and the roller contacts the concave portion. When the two swing arms are rotated to the folded state, the elastic element is in the third compression state, and the roller contacts the side of the protrusion away from the main shaft assembly. The length of the elastic element in both the second and third compression states is greater than the length of the elastic element in the first compression state.

15. The rotating mechanism according to claim 14, characterized in that, The first swing arm further includes a transverse slide groove and a longitudinal slide groove that are interconnected, and the second swing arm further includes a receiving groove that is connected to the transverse slide groove; The damping element further includes a transverse transmission element and a longitudinal transmission element connected between the roller and the elastic element. The transverse transmission element is slidably disposed in the transverse groove along the second direction, and the longitudinal transmission element is slidably disposed in the longitudinal groove along the first direction. The elastic element is located in the receiving groove, and the extension direction of the elastic element is parallel to the second direction.

16. The rotating mechanism according to claim 15, characterized in that, The end of the transverse transmission member facing away from the elastic member has a first inclined surface, and the end of the longitudinal transmission member facing away from the roller has a second inclined surface, with the first inclined surface in contact with the second inclined surface.

17. The rotating mechanism according to claim 16, characterized in that, The longitudinal transmission component includes a connecting slider, a connecting disk, and a connecting inclined block. The connecting disk is connected between the connecting slider and the connecting inclined block. The connecting slider is connected between the connecting disk and the roller. The surface of the connecting slider that contacts the roller is an inclined surface. The surface of the connecting inclined block that contacts the transverse transmission component is the second inclined surface.

18. The rotating mechanism according to claim 13, characterized in that, One of the swing arm components includes two first swing arms and one second swing arm, wherein the two first swing arms are located on both sides of the second swing arm along the second direction and are symmetrically arranged about the second swing arm; The number of horizontal sliders is two, and the two horizontal sliders are located on both sides of the vertical slider along the second direction, and are symmetrically arranged about the vertical slider.

19. The rotating mechanism according to claim 18, characterized in that, The damping element is symmetrically arranged about the second swing arm.

20. A foldable electronic device, characterized in that, include: The flexible screen, the first structural component, the second structural component, and the rotating mechanism as described in any one of claims 1-18; The first structural member and the second structural member are connected to both sides of the rotating mechanism. 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. The flexible screen is also connected to the rotating mechanism.

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