Synchronization mechanism and electronic equipment

Abstract

The invention relates to the technical field of electronic equipment, and provides a synchronizing mechanism and electronic equipment, and the synchronizing mechanism comprises a first rotating shaft, a second rotating shaft, a first swinging part, a second swinging part and a sliding assembly; the first swing part is rotationally connected with the first rotating shaft, the second swing part is rotationally connected with the second rotating shaft, and the first rotating shaft and the second rotating shaft are arranged in parallel; the sliding assembly is connected with the first swing part and the second swing part, the first swing part rotates around the first rotating shaft to drive the sliding assembly to move in the axial direction of the first rotating shaft and the axial direction of the second rotating shaft, and the sliding assembly drives the second swing part to rotate around the second rotating shaft. The rotating direction of the second swing part is opposite to the rotating direction of the first swing part, the size of the sliding assembly can be reduced in the radial direction of the rotating shaft, miniaturization can be achieved, gear teeth do not need to be machined, and the sliding assembly is easy to machine and low in cost.

Description

Synchronous mechanisms and electronics

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on September 19, 2022, with application number 202211137536.9 and application name “Synchronization mechanism and electronic device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of electronic equipment, and in particular to a synchronization mechanism and electronic equipment. Background Art

[0003] With the development of flexible screen technology, flexible screens are increasingly used in electronic devices, especially foldable electronic devices. Foldable electronic devices include a flexible screen and a mechanism that drives the flexible screen to rotate relative to the screen so that the flexible screen can be folded or unfolded.

[0004] To achieve synchronous rotation of the flexible screen during folding or unfolding, a synchronization mechanism is used to drive the relative rotation of the flexible screen. In related technologies, the synchronization mechanism includes two synchronization gears and two gear swing arms. The two synchronization gear swing arms are located on either side of the two synchronization gears. The swing arms are connected to the flexible screen. The two synchronization gears drive the gear swing arms to rotate synchronously, so that the swing arms also drive the synchronous rotation of the flexible screen.

[0005] However, the size requirements of electronic equipment are getting smaller and smaller, so the size requirements of synchronization mechanisms are also getting smaller and smaller. The processing of small synchronization gears is extremely difficult and the processing cost is high.

[0006] Summary of the Invention

[0007] The present application provides a synchronization mechanism and an electronic device, the purpose of which is to move towards miniaturization design, reduce processing difficulty, and reduce processing costs.

[0008] In a first aspect, the present application provides a synchronization mechanism, the synchronization mechanism comprising a first rotating shaft, a second rotating shaft, a first swinging member, a second swinging member, and a sliding assembly;

[0009] The first swing member is rotatably connected to the first rotating shaft, the second swing member is rotatably connected to the second rotating shaft, and the first rotating shaft and the second rotating shaft are arranged in parallel;

[0010] The sliding assembly connects the first swinging member and the second swinging member. The first swinging member rotates around the first rotating shaft to drive the sliding assembly to move axially along the first rotating shaft and the second rotating shaft. The sliding assembly drives the second swinging member to rotate around the second rotating shaft, so that the rotation direction of the second swinging member is opposite to the rotation direction of the first swinging member.

[0011] The synchronization mechanism provided in the present application includes a first rotating shaft, a second rotating shaft, a first swinging member, a second swinging member and a sliding assembly, wherein the first swinging member can rotate around the first rotating shaft, and the second swinging member can rotate around the second rotating shaft. The first swinging member, the second swinging member and the sliding assembly are configured such that when the first swinging member rotates, it drives the sliding assembly to move axially along the first rotating shaft and the second rotating shaft, and during the movement of the sliding assembly, it drives the second swinging member to rotate around the second rotating shaft, thereby achieving synchronous reverse rotation of the first swinging member and the second swinging member, or when the second swinging member rotates around the second rotating shaft, it drives the sliding assembly to rotate along the second rotating shaft and the first rotating shaft, and during the movement of the sliding assembly, it drives the first swinging member to rotate around the first rotating shaft, thereby achieving synchronous reverse rotation of the first swinging member and the second swinging member. The movement of the sliding assembly can drive the second swinging member to swing synchronously in the opposite direction with the first swinging member, and the sliding assembly can be reduced in size in the radial direction of the rotating shaft, thereby achieving miniaturization (lightness and thinness), without the need to process gear teeth, making the sliding assembly easy to process and low in cost.

[0012] In one possible implementation, the first swing member includes two first curved surfaces arranged along the rotation direction, and the second swing member includes two second curved surfaces arranged along the rotation direction, and the first curved surfaces and the second curved surfaces are mirror images;

[0013] The sliding assembly includes a first abutment portion and a second abutment portion, the first abutment portion is configured to abut against the first curved surface, and the second abutment portion is configured to abut against the second curved surface, so that when the first swinging member rotates, the first abutment portion moves axially along the first rotating shaft under the action of the first curved surface, and the second abutment portion acts on the second curved surface, thereby driving the second swinging member to rotate around the second rotating shaft.

[0014] In another possible implementation, the first swing member includes a first rotating portion and a first swing arm, the first rotating portion is rotatably connected to the first rotating shaft, the first swing arm is connected to the first rotating portion, and the first curved surface is arranged along the circumference of the first rotating portion;

[0015] The second swing member includes a second rotating portion and a second swing arm, the second rotating portion is rotationally connected to the second rotating shaft, the second swing arm is connected to the second rotating portion, and the second curved surface is arranged along the circumference of the second rotating portion.

[0016] In another possible implementation, the two first curved surfaces are provided at two ends of the first rotating portion in the axial direction, and the two second curved surfaces are provided at two ends of the second rotating portion in the axial direction.

[0017] The sliding assembly includes two first abutting portions and two second abutting portions. The two first abutting portions are configured to abut against two first curved surfaces respectively, and the two second abutting portions are configured to abut against two second curved surfaces respectively.

[0018] In another possible implementation, the sliding assembly includes a first sliding member and a second sliding member, the first sliding member and the second sliding member are both provided with the first abutting portion and the second abutting portion, and the first sliding member and the second sliding member are detachably connected.

[0019] In another possible implementation, the first sliding member and the second sliding member are arranged in an "X" shape, so that the two first abutting portions are located on the same side, and the two second abutting portions are located on the other side.

[0020] In another possible implementation, a first mating portion is provided between the first abutting portion and the second abutting portion of the first sliding member, and a groove is provided on the first mating portion; a second mating portion is provided between the first abutting portion and the second abutting portion of the second sliding member, and the second mating portion is at least partially engaged with the groove.

[0021] In another possible implementation, the first sliding member and the second sliding member are injection molded.

[0022] In another possible implementation, the first rotating portion includes a first rotating wall and a second rotating wall, the first rotating wall and the second rotating wall enclosing a first axial hole, the first rotating shaft passing through the first axial hole, the first swing arm connected to a side of the first rotating wall facing away from the second rotating wall, and the two first curved surfaces are provided on both end surfaces of the second rotating wall along the axial direction of the first axial hole;

[0023] The second rotating portion includes a third rotating wall and a fourth rotating wall, the third rotating wall and the fourth rotating wall enclose a second axial hole, the second rotating shaft passes through the second axial hole, the second swing arm is connected to the side of the third rotating wall facing away from the fourth rotating wall, and the two second curved surfaces are arranged on the two end surfaces of the fourth rotating wall along the axial direction of the second axial hole.

[0024] In another possible implementation, both the first curved surface and the second curved surface are helical surfaces, and the helical directions of the first curved surface and the second curved surface are different.

[0025] In another possible implementation, the first swing member and the second swing member are injection molded.

[0026] In another possible implementation, the sliding assembly further includes at least two bushings, which are respectively sleeved on the first rotating shaft and the second rotating shaft.

[0027] In another possible implementation, a first inclined surface is provided on the side of the first abutting portion facing the first curved surface, and the first inclined surface cooperates with the first curved surface; a second inclined surface is provided on the side of the second abutting portion facing the second curved surface, and the second inclined surface cooperates with the second curved surface.

[0028] In a second aspect, an electronic device includes: the electronic device includes a first middle frame, a second middle frame, a flexible screen, and the synchronization mechanism described above;

[0029] The first middle frame is connected to the first swing member in the synchronization mechanism, and the second middle frame is connected to the second swing member in the synchronization mechanism respectively;

[0030] The flexible screen covers the first middle frame and the second middle frame.

[0031] In a possible implementation, the electronic device further includes a base, a main swing member, and a damping swing member, and the synchronization mechanism, the main swing member, and the damping swing member are all mounted on the base.

[0032] In another possible implementation, the synchronization mechanism is located between the main oscillating member and the damping oscillating member. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] FIG1 is a schematic structural diagram of an electronic device provided in an embodiment of the present application in a first state;

[0034] FIG2 is a schematic structural diagram of an electronic device provided in an embodiment of the present application in a second state;

[0035] FIG3 is a schematic structural diagram of an electronic device provided in an embodiment of the present application in a third state;

[0036] FIG4 is a schematic diagram of the exploded structure of the electronic device shown in FIG3 ;

[0037] FIG5 is a structural diagram of a synchronization mechanism according to an embodiment of the present application from one perspective;

[0038] FIG6 is a structural diagram of a synchronization mechanism provided in an embodiment of the present application from another perspective;

[0039] FIG7 is a schematic structural diagram of the installation state of the swing member and the sliding member provided in an embodiment of the present application;

[0040] FIG8 is an exploded view of a swinging member and a sliding member provided in an embodiment of the present application;

[0041] FIG9 is a schematic structural diagram of a first swinging member according to an embodiment of the present application from one perspective;

[0042] FIG10 is a schematic structural diagram of the first swinging member provided in an embodiment of the present application from another perspective;

[0043] FIG11 is a schematic structural diagram of the first swinging member provided in an embodiment of the present application from another perspective;

[0044] FIG12 is a schematic structural diagram of a second swinging member according to an embodiment of the present application from one perspective;

[0045] FIG13 is a schematic structural diagram of the second swinging member provided in an embodiment of the present application from another perspective;

[0046] FIG14 is a schematic structural diagram of the second swinging member provided in an embodiment of the present application from another perspective;

[0047] FIG15 is a schematic diagram of the side view of the structure of the second swinging member provided in an embodiment of the present application;

[0048] FIG16 is a schematic structural diagram of a first sliding member provided in an embodiment of the present application from one perspective;

[0049] FIG17 is a schematic structural diagram of the first sliding member provided in an embodiment of the present application from another perspective;

[0050] FIG18 is a schematic structural diagram of the first sliding member provided in an embodiment of the present application from another perspective;

[0051] FIG19 is a schematic structural diagram of the first sliding member provided in an embodiment of the present application from another perspective;

[0052] FIG20 is a schematic top view of the first sliding member provided in an embodiment of the present application;

[0053] FIG21 is a schematic structural diagram of a second sliding member provided in an embodiment of the present application from one perspective;

[0054] FIG22 is a schematic structural diagram of a second sliding member provided in an embodiment of the present application from another perspective;

[0055] FIG23 is a schematic structural diagram of the second sliding member provided in an embodiment of the present application from another perspective;

[0056] FIG24 is a schematic structural diagram of the second sliding member provided in an embodiment of the present application from another perspective;

[0057] FIG25 is a schematic structural diagram of the second sliding member provided in an embodiment of the present application from yet another perspective;

[0058] FIG26 is a partial exploded view of a folding device in an electronic device provided in an embodiment of the present application;

[0059] FIG27 is a schematic diagram of a partial structure of a folding device in an electronic device in a fully unfolded state provided by an embodiment of the present application;

[0060] FIG28 is a schematic diagram of a partial structure of a folding device in an electronic device in a folded state according to an embodiment of the present application;

[0061] FIG29 is a schematic diagram of a partial structure of a folding device in an electronic device in a fully unfolded state provided by an embodiment of the present application;

[0062] FIG30 is a cross-sectional view taken along line AA in FIG29;

[0063] FIG31 is a schematic diagram of a partial structure of a folding device in an electronic device in a semi-expanded state according to an embodiment of the present application;

[0064] Figure 32 is a cross-sectional view taken along line BB in Figure 31;

[0065] FIG33 is a schematic diagram of a partial structure of a folding device in an electronic device in a folded state according to an embodiment of the present application;

[0066] FIG34 is a CC cross-sectional view of FIG33 .

[0067] Legend: 1. Synchronizing mechanism; 11. First rotating shaft; 12. Second rotating shaft; 13. First swinging member; 131. First rotating portion; 1311. First rotating wall; 1312. Second rotating wall; 132. First swinging arm; 133. First curved surface; 14. Second swinging member; 141. Second rotating portion; 1411. Third rotating wall; 1412. Fourth rotating wall; 142. Second swinging arm; 143. Second curved surface; 15. Sliding assembly; 151. First sliding member; 152. Second sliding member; 153. First abutting portion; 1531. First inclined surface; 154. Second abutting portion; 1541. Second inclined surface; 155. First matching portion; 1551. Groove; 156. Second matching portion; 157. Bushing; 2. First middle frame; 3. Second middle frame; 4. Machine base; 5. Main swinging member; 6. Damping swinging member; 200, folding device, 210, first housing, 220, second housing, 100, folding mechanism, 230, first accommodating groove, 240, second accommodating groove; 300, display screen, 310, first portion, 320, second portion, 330, foldable portion, 340, display surface, 350, mounting surface; 500, electronic device, 501, folding device, 502, display screen; DETAILED DESCRIPTION

[0068] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0069] In the description of this application, it should be understood that the terms "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.

[0070] To facilitate a clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. For example, the first limiting portion and the second limiting portion are merely used to distinguish between different limiting portions and do not limit their order. Those skilled in the art will understand that the words "first" and "second" do not limit the quantity or execution order, and the words "first" and "second" do not necessarily mean that they are different.

[0071] It should be noted that, in this application, words such as "in one embodiment" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described in this application as "in one embodiment" or "for example" should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "in one embodiment" or "for example" is intended to present the relevant concepts in a concrete manner.

[0072] In this application, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed or detachable connections, integration, or contact connections; they can refer to mechanical or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0073] In order to make the purpose, technical solutions and advantages of this application more clear, this application is further described in detail below with reference to the accompanying drawings and embodiments.

[0074] Please refer to Figures 1 to 3. Figure 1 is a structural schematic diagram of the electronic device 500 provided in an embodiment of the present application in a first state, Figure 2 is a structural schematic diagram of the electronic device 500 provided in an embodiment of the present application in a second state, and Figure 3 is a structural schematic diagram of the electronic device 500 provided in an embodiment of the present application in a third state.

[0075] For ease of description, the width direction of the electronic device 500 is defined as the X direction, the length direction of the electronic device 500 is defined as the Y direction, and the thickness direction of the electronic device 500 is defined as the Z direction. The X direction, the Y direction, and the Z direction are perpendicular to each other.

[0076] With the development of flexible display technology, electronic devices using foldable screens are becoming more and more popular due to their portability and functional diversity. Electronic devices 500 that can use foldable screens include but are not limited to mobile phones, notebook computers, tablet personal computers, laptop computers, personal digital assistants, wearable devices, mobile devices, augmented reality (AR) / virtual reality (VR) devices, etc., or they can also be professional shooting equipment such as digital cameras, SLR cameras / micro-single cameras, sports cameras, pan-tilt cameras, drones, etc. In the embodiment of the present application, the electronic device 500 is taken as an example of a mobile phone for explanation.

[0077] The electronic device 500 shown in Figure 1 is in a folded state, the electronic device 500 shown in Figure 2 is in a semi-expanded state, and the electronic device 500 shown in Figure 3 is in a flattened state. The unfolding angle α of the electronic device 500 shown in Figure 2 is 90 degrees, and the unfolding angle β of the electronic device 500 shown in Figure 3 is 180 degrees.

[0078] It should be noted that the angles illustrated in the embodiments of the present application are all allowed to have slight deviations. For example, the deployment angle α of the electronic device 500 shown in Figure 2 is 90 degrees, which means that α can be 90 degrees or approximately 90 degrees, such as 80 degrees, 85 degrees, 95 degrees, or 100 degrees. The deployment angle β of the electronic device 500 shown in Figure 3 is 180 degrees, which means that β can be 180 degrees or approximately 180 degrees, such as 170 degrees, 175 degrees, 185 degrees, and 190 degrees. The angles illustrated in the examples below can be understood in the same way.

[0079] The electronic device 500 shown in the embodiment of the present application is an electronic device that can be folded once. In other embodiments, the electronic device 500 can also be an electronic device that can be folded multiple times (more than twice). In this case, the electronic device 500 can include multiple parts, where two adjacent parts can be folded relatively close together until the electronic device 500 is in a folded state, and the two adjacent parts can be unfolded relatively far apart until the electronic device 500 is in a flat state.

[0080] Please refer to FIG. 4 , which is a schematic diagram of the exploded structure of the electronic device 500 shown in FIG. 3 .

[0081] The electronic device 500 includes a folding device 200 and a display screen 300, which is mounted on the folding device 200. The display screen 300 includes a display surface 340 and a mounting surface 350, which are arranged relative to each other. The display surface 340 is used to display text, images, and videos. The display screen 300 includes a first portion 310, a second portion 320, and a foldable portion 330. The foldable portion 330 is located between the first portion 310 and the second portion 320, and the foldable portion 330 can be bent along the Y direction. The first portion 310, the second portion 320, and the foldable portion 330 together constitute the display screen 300. In this embodiment, the display screen 300 uses a flexible display screen, for example, an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode or active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode (MLED) display screen, a micro organic light-emitting diode (MLED) display screen, a micro organic light-emitting diode (MLED) display screen, or a quantum dot light-emitting diode (QLED) display screen.

[0082] The folding device 200 includes a first housing 210, a second housing 220, and a folding mechanism 100. The first housing 210 is provided with a first receiving groove 230, and the second housing 220 is provided with a second receiving groove 240. The first receiving groove 230 and the second receiving groove 240 are connected to form a receiving groove for the folding mechanism 100. The folding mechanism 100 is mounted in the receiving groove and fixedly connected to the first housing 210 and the second housing 220 to achieve a rotational connection between the first housing 210 and the second housing 220. The display screen 300 is mounted on the folding device 200, and the mounting surface 350 is fixedly connected to the folding device 200. Specifically, the first housing 210 supports the first portion 310 of the display screen 300, and the second housing 220 supports the second portion 320. In other words, the first portion 310 is mounted on the first housing 210, and the second portion 320 is mounted on the second housing 220. The folding mechanism 100 is arranged opposite the foldable portion 330. The first shell 210 and the second shell 220 can rotate relative to each other through the folding mechanism 100, so that the folding device 200 can switch between the folded state and the flattened state.

[0083] 1 , the first shell 210 and the second shell 220 rotate relative to each other through the folding mechanism 100, and the first shell 210 and the second shell 220 are relatively close to each other to drive the display screen 300 to fold, so that the electronic device 500 is folded. When the electronic device 500 is in the folded state, the foldable part 330 of the display screen 300 is bent, and the first part 310 and the second part 320 are arranged relative to each other. At this time, the display screen 300 is between the first shell 210 and the second shell 220, which can greatly reduce the probability of the display screen 300 being damaged and achieve effective protection for the display screen 300. It includes a base, a main swing member, a damping swing member and a synchronization mechanism,

[0084] Referring to Figures 2 and 4 , the first housing 210 and the second housing 220 rotate relative to each other via the folding mechanism 100. This movement of the first housing 210 and the second housing 220 causes the display screen 300 to unfold, allowing the electronic device 500 to unfold to a semi-expanded state. When the electronic device 500 is in the semi-expanded state, the first housing 210 and the second housing 220 unfold to an angle α, and the first portion 310 and the second portion 320 unfold relative to each other, driving the foldable portion 330 to unfold. At this point, the angle α between the first portion 310 and the second portion 320 is α. In this embodiment, α is 90 degrees. In other embodiments, α may also be approximately 90 degrees, or may be 80 degrees, 85 degrees, 95 degrees, or 100 degrees, for example.

[0085] Referring to Figures 3 and 4 , the first housing 210 and the second housing 220 rotate relative to each other via the folding mechanism 100. As the first and second housings 210, 220 move away from each other, the display screen 300 further unfolds until the electronic device 500 is flattened. When the folding mechanism 200 is in the flattened state, the angle β between the first and second housings 210, 220 is β. The foldable portion 330 unfolds, and the first and second portions 310, 320 are relatively unfolded. At this point, the angles β between the first and second portions 310, 320, and foldable portion 330 are all β. This allows the display screen 300 to have a large display area, enabling a large-screen display for the electronic device 500 and improving the user experience. In this embodiment, β is 180 degrees. In other embodiments, β may also be approximately 180 degrees, such as 170 degrees, 175 degrees, 185 degrees, or 190 degrees.

[0086] It should be noted that angles α and β are both the angles between the first housing 210 and the second housing 220. These angles are used to distinguish the angles between the first housing 210 and the second housing 220 in different states of the electronic device 500. Angle α refers to the angle between the first housing 210 and the second housing 220 when the electronic device 500 is in the semi-expanded state; angle β refers to the angle between the first housing 210 and the second housing 220 when the electronic device 500 is in the flattened state.

[0087] Please refer to Figure 26 as well. The folding mechanism 100 includes a base 4, a main oscillating member 5, a damping oscillating member 6, and a synchronization mechanism 1. The synchronization mechanism 1, the main oscillating member 4, and the damping oscillating member 6 are all mounted on the base 4. The first housing 210 includes a first middle frame 2, and the second housing 220 includes a second middle frame 3. The first middle frame 2 is connected to one side of the synchronization mechanism 1, the main oscillating member 5, and the damping oscillating member 6, while the second middle frame 3 is connected to the other side of the synchronization mechanism 1, the main oscillating member 5, and the damping oscillating member 6.

[0088] Please refer to FIG. 5 , which is a schematic structural diagram of the synchronization mechanism 1 in the electronic device 500 shown in FIG. 4 .

[0089] In a first aspect, as shown in FIG. 5 to FIG. 8 , the synchronization mechanism may include a first rotating shaft 11 , a second rotating shaft 12 , a first swinging member 13 , a second swinging member 14 and a sliding assembly 15 .

[0090] The first swing member 13 is rotatably connected to the first rotating shaft 11, and the second swing member 14 is rotatably connected to the second rotating shaft 12. The first rotating shaft 11 and the second rotating shaft 12 are arranged in parallel.

[0091] The sliding assembly 15 connects the first swinging member 13 and the second swinging member 14. If a user acts on the first swinging member 13, causing it to rotate about the first rotation axis 11, the first swinging member 13's rotation about the first rotation axis 11 drives the sliding assembly 15 to move axially between the first rotation axis 11 and the second rotation axis 12, and the sliding assembly 15 drives the second swinging member 14 to rotate about the second rotation axis 12. If a user acts on the second swinging member 14, causing it to rotate about the second rotation axis 12, the second swinging member 14's rotation about the second rotation axis 12 drives the sliding assembly to move axially between the first rotation axis 11 and the second rotation axis 12, and the sliding assembly drives the first swinging member 13 to rotate about the first rotation axis 11.

[0092] The sliding assembly 15 is configured such that, during axial movement along the first rotating shaft 11 and the second rotating shaft 12, the second swinging member 14 rotates in a direction opposite to that of the first swinging member 13. The force exerted by the sliding assembly 15 on the circumferential rotation of the first swinging member 13 is in opposite directions to the force exerted by the sliding assembly 15 on the circumferential rotation of the second swinging member 14. Thus, during movement of the sliding assembly 15, the first swinging member 13 and the second swinging member 14 rotate synchronously in opposite directions due to the opposing forces.

[0093] In this embodiment, the first rotating shaft 11 and the second rotating shaft 12 are arranged in parallel, the first swinging member 13 is mounted on the first rotating shaft 11, and the second swinging member 14 is mounted on the second rotating shaft 12. Optionally, the first swinging member 13 and the second swinging member 14 are arranged in mirror images, and the first swinging member 13 and the second swinging member 14 rotate synchronously in different directions to achieve unfolding or folding.

[0094] The synchronization mechanism 1 is applied to a foldable electronic device, and the first swinging member 13 and the second swinging member 14 of the synchronization mechanism 1 are used to drive the folding screen to fold or unfold.

[0095] In the embodiment of the present application, the synchronization mechanism 1 includes a first rotating shaft 11, a second rotating shaft 12, a first swinging member 13, a second swinging member 14, and a sliding assembly 15. The first swinging member 13 can rotate about the first rotating shaft 11, and the second swinging member 14 can rotate about the second rotating shaft 12. The first swinging member 13, the second swinging member 14, and the sliding assembly 15 are configured such that when the first swinging member 13 rotates, the sliding assembly 15 is driven to move axially along the first rotating shaft 11 and the second rotating shaft 12. During the movement of the sliding assembly 15, the second swinging member 14 is driven to rotate about the second rotating shaft 12, thereby achieving synchronous counter-rotation of the first swinging member 13 and the second swinging member 14. Alternatively, when the second swinging member 14 rotates about the second rotating shaft 12, the sliding assembly 15 is driven to rotate along the second rotating shaft 12 and the first rotating shaft 11. During the movement of the sliding assembly 15, the first swinging member 13 is driven to rotate about the first rotating shaft 11, thereby achieving synchronous counter-rotation of the first swinging member 13 and the second swinging member 14. The movement of the sliding component 15 can drive the second swinging member 14 and the first swinging member 13 to swing synchronously in the opposite direction. The sliding component 15 can be reduced in size in the radial direction of the rotating shaft, and can be miniaturized (light and thin). Moreover, the sliding component 15 is a non-tooth component and does not require the processing of gear teeth, making the sliding component 15 easy to process and low in cost.

[0096] The synchronization mechanism 1 shown in the embodiment of the present application cooperates with the sliding component 15 and the first swinging member 13 and the second swinging member 14, so that there are multiple ways to realize the synchronous reverse rotation of the first swinging member 13 and the second swinging member 14. Two of the realization methods are listed below to illustrate that the synchronization mechanism 1 in the embodiment of the present application is miniaturized and low-cost.

[0097] In one possible implementation, as shown in FIG9 to FIG15 , the first swing member 13 of the synchronization mechanism 1 includes two first curved surfaces 133 arranged along the rotation direction, and the second swing member 14 includes two second curved surfaces 143 arranged along the rotation direction, and the first curved surfaces 133 and the second curved surfaces 143 are mirror images;

[0098] As shown in Figures 16 to 25, the sliding assembly 15 includes a first abutment portion 153 and a second abutment portion 154. The first abutment portion 153 is configured to abut against the first curved surface 133, and the second abutment portion 154 is configured to abut against the second curved surface 143, so that when the first swinging member 13 rotates, the first abutment portion 153 moves axially along the first rotating shaft 11 under the action of the first curved surface 133, and the second abutment portion 154 acts on the second curved surface 143, thereby driving the second swinging member 14 to rotate around the second rotating shaft 12.

[0099] The first endpoint and the second endpoint of the first curved surface 133 are not located on the same circumference line; the first endpoint and the second endpoint of the second curved surface 143 are also not located on the same circumference line. The first endpoint is the starting point of the curved surface, and the second endpoint is the ending point of the curved surface.

[0100] In this embodiment, the first abutting portion 153 abuts against the first curved surface 133, and a force can be applied to each other between the first abutting portion 153 and the first curved surface 133. The second abutting portion 154 abuts against the second curved surface 143, and a force can be applied to each other between the second abutting portion 154 and the second curved surface 143. Because the first curved surface 133 is arranged along the rotation direction of the first swinging member 13, when a force acts on the first curved surface 133, the force is decomposed along the rotation direction of the first swinging member 13, thereby causing the first swinging member 13 to rotate. Similarly, the second curved surface 143 is arranged along the rotation direction of the second swinging member 14. When a force acts on the second curved surface 143, the force is decomposed along the rotation direction of the second swinging member 14, thereby causing the second swinging member 14 to rotate.

[0101] The first abutting portion 153 is acted upon by the first curved surface 133. When the first swinging member 13 rotates, different positions of the first curved surface 133 exert forces on the first abutting portion 153, causing the first abutting portion 153 to move axially along the first rotating shaft 11. The second abutting portion 154 is acted upon by the second curved surface 143. When the second swinging member 14 rotates, different positions of the second curved surface 143 exert forces on the second abutting portion 154, causing the second abutting portion 154 to move axially along the second rotating shaft 12.

[0102] When a user rotates the first swinging member 13, the first swinging member 13 rotates along the first rotation axis 11. During the rotation of the first swinging member 13 along the first rotation axis 11, different positions of the first curved surface 133 apply a force to the first abutting portion 153, causing the sliding assembly 15 to move axially along the first rotation axis 11. During the axial movement of the sliding assembly 15 along the first rotation axis 11, the second abutting portion 154 of the sliding assembly 15 applies a force to the second curved surface 143 of the second swinging member 14. The force is decomposed along the rotation direction of the second swinging member 14, causing the second swinging member 14 to rotate along the second rotation axis 12. When the first swinging member 13 and the second swinging member 14 are in use, the first curved surface 133 on the first swinging member 13 and the second curved surface 143 on the second swinging member 14 are mirror images. In this way, when the sliding assembly 15 moves, the rotation direction of the second swinging member 14 is always opposite to the rotation direction of the first swinging member 13.

[0103] Next, various components involved in the synchronization mechanism 1 provided in this implementation are described.

[0104] In this implementation, as shown in Figures 9 to 11, the first swinging member 13 includes a first rotating portion 131 and a first swinging arm 132, the first rotating portion 131 is rotationally connected to the first rotating shaft 11, the first swinging arm 132 is connected to the first rotating portion 131, and the first curved surface 133 is arranged along the circumference of the first rotating portion 131; as shown in Figures 12 to 15, the second swinging member 14 includes a second rotating portion 141 and a second swinging arm 142, the second rotating portion 141 is rotationally connected to the second rotating shaft 12, the second swinging arm 142 is connected to the second rotating portion 141, and the second curved surface 143 is arranged along the circumference of the second rotating portion 141.

[0105] The first swing arm 132 and the second swing arm 142 are used to connect with the middle frame of the electronic terminal to drive the folding screen on the middle frame to swing, such as folding or unfolding. When the first swing member 13 and the second swing member 14 are in the installed state, the first rotating part 131 and the second rotating part 141 are adjacent to each other. When the first swing arm 132 rotates with the first rotating part 131, it swings from the side away from the second swing arm 142 to the second swing arm 142. When the second swing arm 142 rotates with the second rotating part 141, it swings from the side away from the first swing arm 132 to the first swing arm 132. Optionally, when the first swing arm 132 and the second swing arm 142 are in the unfolded state, the first swing arm 132 and the second swing arm 142 extend in opposite directions, and the first rotating part 131 and the second rotating part 141 are located between the first swing arm 132 and the second swing arm 142. When the first swing arm 132 and the second swing arm 142 are in a folded state, the first swing arm 132 and the second swing arm 142 extend in the same direction, and the first swing arm 132 and the second swing arm 142 are parallel to each other.

[0106] In this embodiment, the two first curved surfaces 133 are disposed at the axial ends of the first rotating portion 131, and the two second curved surfaces 143 are disposed at the axial ends of the second rotating portion 141. Correspondingly, the sliding assembly 15 includes two first abutting portions 153 and two second abutting portions 154. The two first abutting portions 153 are configured to abut the two first curved surfaces 133, respectively, and the two second abutting portions 154 are configured to abut the two second curved surfaces 143, respectively. It should be understood that the two axial ends refer to the two ends in the extension direction of the shaft, that is, the two end surfaces of the shaft. As shown in Figure 10, the two axial ends refer to the two ends of the first rotating portion 131 in the demolding direction.

[0107] When the first swinging member 13 rotates in the first direction, one of the first curved surfaces 133 abuts against one of the first abutting portions 153, pushing the sliding assembly 15 to move in one direction. A second abutting portion 154 of the sliding assembly 15 abuts against one of the second curved surfaces 143, driving the second swinging member 14 to swing. The one first curved surface 133 and the one second curved surface 143 are distributed on opposite sides of the axial direction of the first rotating shaft 11 or the second rotating shaft 12.

[0108] When the first swinging member 13 rotates in the second direction, the other first curved surface 133 abuts against the other first abutting portion 153, pushing the sliding assembly 15 to move in the other direction. The other second abutting portion 154 of the sliding assembly 15 abuts against the other second curved surface 143 to drive the second swinging member 14 to swing. The other first curved surface 133 and the other second curved surface 143 are distributed on opposite sides of the axial direction of the first rotating shaft 11 or the second rotating shaft 12.

[0109] In this embodiment, the first curved surface 133 is set on the end surface of the first swinging member 13, and the second curved surface 143 is set on the end surface of the second swinging member 14. In this way, the first curved surface 133 can be directly processed from the end surface of the first swinging member 13, and the second curved surface 143 can be processed from the end surface of the second swinging member 14, so that the processing of the first swinging member 13 and the second swinging member 14 is simplified, the processing efficiency is improved, and the processing cost is reduced.

[0110] On the other hand, the first swing member 13 and the second swing member 14 can be directly injection molded to achieve batch injection molding without the need for additional processing, further improving production efficiency and reducing production costs. It is understandable that the two first curved surfaces 133 are set at the two ends of the axial direction of the first rotating part 131, and the two second curved surfaces 143 are set at the two ends of the axial direction of the second rotating part 141. The space between the two first curved surfaces 133 and the space between the two second curved surfaces 143 is a solid structure, which can be directly injection molded by designing the mold structure and demolded from the two ends of the axial direction of the rotating part, as shown in Figure 10. The first swing member 13 and the second swing member 14 are easy to demold, which improves the feasibility of batch injection molding of the mold. In addition, the use of injection molding can save the process of machining the curved surface, reduce machining errors, and improve the manufacturing accuracy of the curved surface, thereby making the first swing member 13 and the second swing member 14 of the synchronization mechanism 1 stable during the swinging process. When used in electronic devices, it improves the user's feel when opening and closing the electronic device.

[0111] In one possible implementation of the sliding assembly 15, the sliding assembly 15 may be an integral structure. The sliding assembly 15 is provided with first abutting portions 153 and second abutting portions 154 at four positions corresponding to the first curved surfaces 133 and the second curved surfaces 143, respectively. The first abutting portions 153 are located on the same side and correspond one-to-one with the two first curved surfaces 133 to abut against the first curved surfaces 133. The second abutting portions 154 are located on the same side and correspond one-to-one with the two second curved surfaces 143 to abut against the second curved surfaces 143.

[0112] In another possible implementation of the sliding assembly 15, as shown in Figures 16 to 25, the sliding assembly 15 includes a first sliding member 151 and a second sliding member 152, and the first sliding member 151 and the second sliding member 152 are both provided with the first abutment portion 153 and the second abutment portion 154, and the first sliding member 151 and the second sliding member 152 are detachably connected.

[0113] In this embodiment, the first abutting portion 153 of the first sliding member 151 abuts against a first curved surface 133 of the first swinging member 13, and the second abutting portion 154 of the first sliding member 151 abuts against a second curved surface 143 of the second swinging member 14. The first abutting portion 153 of the second sliding member 152 abuts against the other first curved surface 133 of the first swinging member 13, and the second abutting portion 154 of the second sliding member 152 abuts against the other second curved surface 143 of the second swinging member 14.

[0114] When the first swinging member 13 drives the first sliding member 151 to move, the second abutting portion 154 of the first sliding member 151 or the second abutting portion 154 of the second sliding member 152 and the second curved surface 143 drive the second swinging member 14 to rotate. At the same time, the first sliding member 151 drives the second sliding member 152 to move axially along the first rotation shaft 11 and the second rotation shaft 12, so that the first abutting portion 153 of the second sliding member 152 limits the axial displacement of the first curved surface 133, and the second abutting portion 154 limits the axial displacement of the second curved surface 143. In this way, the cooperation between the first sliding member 151 and the second sliding member 152 allows the first swinging member 13 and the second swinging member 14 to swing smoothly and synchronously.

[0115] In one achievable embodiment, the first sliding member 151 and the second sliding member 152 are distributed along the axial direction of the first rotating shaft 11 or the second rotating shaft 12. The first abutting portion 153 and the second abutting portion 154 of the first sliding member 151 are disposed on opposite sides of the first sliding member 151 to respectively abut the first swinging member 13 and the second swinging member 14. The first abutting portion 153 and the second abutting portion 154 of the second sliding member 152 are disposed on opposite sides of the second sliding member 152 to respectively abut the first swinging member 13 and the second swinging member 14. The first sliding member 151 and the second sliding member 152 are located on the same horizontal plane.

[0116] In this implementation, when the first swinging member 13 drives the first sliding member 151 to move, the first sliding member 151 drives the second sliding member 152 to move, so that the second abutment portion 154 of the second sliding member 152 and the second curved surface 143 of the second swinging member 14 drive the second swinging member 14 to rotate, thereby realizing the synchronous rotation of the first swinging member 13 and the second swinging member 14.

[0117] In another possible implementation, as shown in Figures 7 and 8, the first sliding member 151 and the second sliding member 152 are arranged in an "X" shape, so that the two first abutting portions 153 are located on the same side, and the two second abutting portions 154 are located on the other side. The first sliding member 151 and the second sliding member 152 are arranged crosswise, with the first abutting portion 153 of the first sliding member 151 and the second abutting portion 154 of the second sliding member 152 arranged opposite each other, and the first abutting portion 153 of the second sliding member 152 and the second abutting portion 154 of the first sliding member 151 arranged opposite each other.

[0118] In this embodiment, when the first swinging member 13 drives the first sliding member 151 to move, during the movement of the first sliding member 151, the second abutting portion 154 of the first sliding member 151 and the second curved surface 143 of the second swinging member 14 drive the second swinging member 14 to rotate, thereby achieving synchronous rotation of the first swinging member 13 and the second swinging member 14. Compared to the above embodiment, the rotation of the second swinging member 14 in this embodiment does not require transmission between the first sliding member 151 and the second sliding member 152, thereby reducing transmission errors and improving the stability of the synchronous rotation of the first and second swinging members 13 and 14.

[0119] Optionally, in this embodiment, as shown in Figures 16 and 20, a first inclined surface 1531 is provided on a side of the first abutting portion 153 facing the first curved surface 133, and the first inclined surface 1531 cooperates with the first curved surface 133; a second inclined surface 1541 is provided on a side of the second abutting portion 154 facing the second curved surface 143, and the second inclined surface 1541 cooperates with the second curved surface 143. The first abutting portion 153 abuts and cooperates with the first curved surface 133 via the first inclined surface 1531, and the second abutting portion 154 abuts and cooperates with the second curved surface 143 via the second inclined surface 1541.

[0120] Since the first curved surface 133 is located at the two axial ends of the first rotating portion 131, the two first curved surfaces 133 are arranged back to back; a receiving groove is formed between the two first abutting portions 153, and the two first inclined surfaces 1531 are arranged on the two opposite groove walls of the receiving groove. The side of the first rotating portion 131 of the first swinging member 13 provided with the first curved surface 133 is accommodated in the receiving groove, so that the first inclined surfaces 1531 respectively abut against the first curved surfaces 133 at both ends.

[0121] Optionally, in this implementation, the first rotating portion 131 includes a first rotating wall 1311 and a second rotating wall 1312, the first rotating wall 1311 and the second rotating wall 1312 enclose a first axial hole, the first rotating shaft 11 passes through the first axial hole, the first swing arm 132 is connected to the side of the first rotating wall 1311 facing away from the second rotating wall 1312, and the two first curved surfaces 133 are arranged on the two end surfaces of the second rotating wall 1312 along the axial direction of the first axial hole.

[0122] The second rotating portion 141 includes a third rotating wall 1411 and a fourth rotating wall 1412, the third rotating wall 1411 and the fourth rotating wall 1412 enclose a second axial hole, the second rotating shaft 12 passes through the second axial hole, the second swing arm 142 is connected to the side of the third rotating wall 1411 away from the fourth rotating wall 1412, and the two second curved surfaces 143 are arranged on the two end surfaces of the fourth rotating wall 1412 along the axial direction of the second axial hole.

[0123] Optionally, the first curved surface 133 is disposed on the second rotating wall 1312 and extends along the rotational direction of the second rotating wall 1312, and the second curved surface 143 is disposed on the fourth rotating wall 1412 and extends along the rotational direction of the fourth rotating wall 1412. The cross-sections of the second rotating wall 1312 and the fourth rotating wall 1412 are semicircular, that is, the length of the arc of the axial projection of the first curved surface 133 and the second curved surface 143 is less than or equal to the arc length of the semicircle. In this embodiment, the extension angles and inclination angles of the first curved surface 133 and the second curved surface 143 are configured to adapt to the rotation of the first and second swing arms 132 and 142 from the extended state to the folded state. In other words, when the first abutting portion 153 slides from the first end point of the first curved surface 133 to the second end point, it drives the second abutting portion 154 to slide from the first end point of the second curved surface 143 to the second end point. At this time, the first and second swing arms 132 and 142 rotate from the extended state to the folded state, or vice versa. The design of the first curved surface 133 and the second curved surface 143 in this implementation can realize synchronous rotation of the first swing arm 132 and the second swing arm 142, and facilitate molding and demoulding to realize injection molding.

[0124] On the one hand, in this embodiment, the first sliding member 151 and the second sliding member 152 are detachably connected, and the first sliding member 151 and the second sliding member 152 can be repaired and replaced separately, thereby reducing maintenance costs.

[0125] On the other hand, in this embodiment, the first sliding member 151 and the second sliding member 152 have simple structures and can be manufactured using injection molding. Because the first inclined surface 1531 and the second inclined surface 1541 of the first sliding member 151 are arranged relative to each other, the first inclined surface 1531 and the second inclined surface 1541 can be demolded in the direction of the first inclined surface 1531 and the second inclined surface 1541, as shown in Figures 16 and 21, injection molding makes the first sliding member 151 and the second sliding member 152 easy to manufacture and has low mass production costs.

[0126] Optionally, a first mating portion 155 is provided between the first abutting portion 153 and the second abutting portion 154 of the first sliding member 151, and the first mating portion 155 is provided with a groove 1551. A second mating portion 156 is provided between the first abutting portion 153 and the second abutting portion 154 of the second sliding member 152, and the second mating portion 156 is at least partially engaged with the groove 1551. The second mating portion 156 of the second sliding member 152 is engaged with the groove 1551 of the first mating portion 155, so that the first sliding member 151 and the second sliding member 152 are mated and fixed, thereby improving the stability of the first sliding member 151 and the second sliding member 152.

[0127] In another possible implementation, the structure of the first swinging member 13 and the second swinging member 14 is different from the above implementation. In this implementation, the two first curved surfaces 133 are relatively arranged on the first swinging member 13, and the first curved surfaces 133 form a slide groove. The first abutment 153 is in the one slide groove and abuts against the two opposite first curved surfaces 133 respectively; the two second curved surfaces 143 are relatively arranged on the second swinging member 14, and the second curved surfaces 143 form another slide groove. The second abutment 154 is in the other slide groove and abuts against the two opposite second curved surfaces 143 respectively.

[0128] In this embodiment, the first curved surface 133 and the second curved surface 143 are formed by providing sliding grooves on the first swinging member 13 and the second swinging member 14. The first abutment portion 153 and the second abutment portion 154 of the sliding assembly 15 are respectively provided at the two ends of the sliding assembly 15. Compared with the above embodiment, this embodiment has a simpler structure. Compared with gear tooth processing, the method of providing sliding grooves on the swinging members is simpler to process, which can reduce processing costs.

[0129] Optionally, in the above implementation, the first curved surface 133 and the second curved surface 143 are both spiral surfaces, and the spiral directions of the first curved surface 133 and the second curved surface 143 are different. It should be noted that when the synchronization mechanism 1 is in use, the first swinging member 13 and the second swinging member 14 are mirror images based on the center line between the first rotating shaft 11 and the second rotating shaft 12, and the center line is parallel to the axis of the first rotating shaft 11 and the second rotating shaft 12. Therefore, the spiral directions of the first curved surface 133 on the first swinging member 13 and the second curved surface 143 on the second swinging member 14 are opposite (mirrored). Based on the different spiral directions of the first curved surface 133 and the second curved surface 143, when the sliding assembly 15 slides in one direction, it drives the first swinging member 13 and the second swinging member 14 to rotate in opposite directions. On the other hand, this embodiment adopts a mirrored curved surface method, combined with the sliding of the sliding component 15 to achieve synchronous reverse rotation of the first swing member 13 and the second swing member 14. At the same time, the first swing member 13 and the second swing member 14 can be made of the same mold, and only need to be mirrored during assembly, thereby reducing the number of molds and further reducing manufacturing costs.

[0130] Optionally, in the above implementation, the sliding assembly 15 further includes at least two sleeves 157, each sleeve being sleeved on the first rotating shaft 11 and the second rotating shaft 12. The sliding assembly 15 is sleeved on the first rotating shaft 11 and the second rotating shaft 12 via the sleeves 157, thereby facilitating axial movement of the sliding assembly 15 along the first rotating shaft 11 and the second rotating shaft 12, thereby improving the stability of the movement of the sliding assembly 15.

[0131] Secondly, the present application also provides an electronic device. FIG26 shows a partial exploded view of a folding device in the electronic device. The electronic device includes a first middle frame 2, a second middle frame 3, a flexible screen, and a synchronization mechanism 1 provided in the present application. The first middle frame 2 is connected to the first swinging member 13 of the synchronization mechanism 1, and the second middle frame 3 is connected to the second swinging member 14 of the synchronization mechanism 1. The flexible screen covers the first middle frame 2 and the second middle frame 3.

[0132] Optionally, the electronic device provided in the embodiment of the present application may be a foldable mobile phone, a foldable tablet, or a foldable notebook, but is not limited thereto.

[0133] In the electronic device provided herein, by applying the synchronization mechanism 1 provided in the embodiments of the present invention, the thickness of the electronic device's rotating shaft can be reduced. The components of the synchronization mechanism 1 can be mass-produced using molds, directly improving manufacturing accuracy by improving mold precision, eliminating the need for secondary processing and reducing secondary processing errors. Furthermore, the components of the synchronization mechanism 1 are modularly designed and can be individually repaired or replaced, reducing repair or replacement costs.

[0134] In one possible implementation, as shown in Figures 26 to 34, the electronic device further includes a base 4, a main swing member 5, and a damping swing member 6. The synchronization mechanism 1, the main swing member 5, and the damping swing member 6 are all mounted on the base 4. The electronic device provides a main swing force through the main swing member 5, provides a synchronous swing force for the first middle frame 2 and the second middle frame 3 through the synchronization mechanism 1, and provides swing damping of the first middle frame 2 and the second middle frame 3 (or the flexible screen) through the damping swing member 6, thereby improving the user's opening and closing feel.

[0135] In another possible implementation, the electronic device includes a plurality of the synchronization mechanisms 1, and the plurality of synchronization structures are evenly distributed on the base 4, so that the flexible screen is more stable during folding or unfolding.

[0136] In another possible implementation, the synchronization mechanism 1 is located between the main swing member 5 and the damping swing member 6. The synchronization mechanism 1 is located in the middle position, so that the force points of the flexible screen are uniform and the stability is improved.

[0137] In the embodiment of the present application, "and / or" describes the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c can represent: a, b, c, a - ,b,a - ,c,b - , c, or a - , b - , c, where a, b, c can be single or multiple.

[0138] Those skilled in the art will appreciate that the various units and algorithm steps described in the embodiments disclosed herein can be implemented using a combination of electronic hardware, computer software, and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0139] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0140] The above description is merely a specific embodiment of the present application. Any person skilled in the art may easily conceive of variations or substitutions within the technical scope disclosed in this application, and such variations or substitutions shall be within the scope of protection of this application. The scope of protection of this application shall be subject to the scope of protection of the claims.

Claims

1. A synchronization mechanism, characterized in that: The synchronization mechanism (1) comprises a first rotating shaft (11), a second rotating shaft (12), a first swinging member (13), a second swinging member (14) and a sliding assembly (15); The first swing member (13) is rotatably connected to the first rotating shaft (11), the second swing member (14) is rotatably connected to the second rotating shaft (12), and the first rotating shaft (11) and the second rotating shaft (12) are arranged in parallel; The sliding assembly (15) is connected to the first swinging member (13) and the second swinging member (14); the first swinging member (13) rotates around the first rotating shaft (11) to drive the sliding assembly (15) to move axially along the first rotating shaft (11) and the second rotating shaft (12); the sliding assembly (15) drives the second swinging member (14) to rotate around the second rotating shaft (12), so that the rotation direction of the second swinging member (14) is opposite to the rotation direction of the first swinging member (13).

2. The synchronization mechanism according to claim 1, wherein: The first swinging member (13) includes two first curved surfaces (133) arranged along the rotation direction, and the second swinging member (14) includes two second curved surfaces (143) arranged along the rotation direction, and the first curved surfaces (133) and the second curved surfaces (143) are arranged in a mirror image; The sliding assembly (15) includes a first abutting portion (153) and a second abutting portion (154), wherein the first abutting portion (153) is configured to abut against the first curved surface (133), and the second abutting portion (154) is configured to abut against the second curved surface (143), so that when the first swinging member (13) rotates, the first abutting portion (153) moves axially along the first rotating shaft (11) under the action of the first curved surface (133), and the second abutting portion (154) acts on the second curved surface (143), thereby driving the second swinging member (14) to rotate around the second rotating shaft (12).

3. The synchronization mechanism according to claim 2, wherein: The first swing member (13) comprises a first rotating portion (131) and a first swing arm (132), wherein the first rotating portion (131) is rotationally connected to the first rotating shaft (11), the first swing arm (132) is connected to the first rotating portion (131), and the first curved surface (133) is arranged along the circumference of the first rotating portion (131); The second swing member (14) comprises a second rotating portion (141) and a second swing arm (142); the second rotating portion (141) is rotationally connected to the second rotating shaft (12); the second swing arm (142) is connected to the second rotating portion (141); and the second curved surface (143) is arranged along the circumference of the second rotating portion (141).

4. The synchronization mechanism according to claim 3, wherein: The two first curved surfaces (133) are arranged at two ends of the first rotating portion (131) in the axial direction, and the two second curved surfaces (143) are arranged at two ends of the second rotating portion (141) in the axial direction; The sliding assembly (15) includes two first abutting portions (153) and two second abutting portions (154), wherein the two first abutting portions (153) are configured to abut against two first curved surfaces (133) respectively, and the two second abutting portions (154) are configured to abut against two second curved surfaces (143) respectively.

5. The synchronization mechanism according to claim 4, characterized in that: The sliding assembly (15) comprises a first sliding member (151) and a second sliding member (152); the first sliding member (151) and the second sliding member (152) are both provided with the first abutting portion (153) and the second abutting portion (154); the first sliding member (151) and the second sliding member (152) are detachably connected.

6. The synchronization mechanism according to claim 5, characterized in that: The first sliding member (151) and the second sliding member (152) are arranged in an "X" shape, so that the two first abutting portions (153) are located on the same side, and the two second abutting portions (154) are located on the other side.

7. The synchronization mechanism according to claim 6, wherein: A first matching portion (155) is provided between the first abutting portion (153) and the second abutting portion (154) of the first sliding member (151), and a groove (1551) is provided on the first matching portion (155). A second matching portion (156) is provided between the first abutting portion (153) and the second abutting portion (154) of the second sliding member (152), and the second matching portion (156) is at least partially engaged with the groove (1551).

8. The synchronization mechanism according to claim 5, wherein: The first sliding member (151) and the second sliding member (152) are injection molded.

9. The synchronization mechanism according to claim 4, wherein: The first rotating portion (131) includes a first rotating wall (1311) and a second rotating wall (1312), the first rotating wall (1311) and the second rotating wall (1312) enclose a first axial hole, the first rotating shaft (11) passes through the first axial hole, the first swing arm (132) is connected to a side of the first rotating wall (1311) away from the second rotating wall (1312), and the two first curved surfaces (133) are arranged on both end surfaces of the second rotating wall (1312) along the axial direction of the first axial hole; The second rotating portion (141) includes a third rotating wall (1411) and a fourth rotating wall (1412), wherein the third rotating wall (1411) and the fourth rotating wall (1412) enclose a second axial hole, the second rotating shaft (12) passes through the second axial hole, the second swing arm (142) is connected to the side of the third rotating wall (1411) away from the fourth rotating wall (1412), and the two second curved surfaces (143) are arranged on the two end surfaces of the fourth rotating wall (1412) along the axial direction of the second axial hole.

10. The synchronization mechanism according to any one of claims 2 to 8, characterized in that: The first curved surface (133) and the second curved surface (143) are both helical surfaces, and the helical directions of the first curved surface (133) and the second curved surface (143) are different.

11. The synchronization mechanism according to claim 1, wherein: The first swinging member (13) and the second swinging member (14) are injection-molded.

12. The synchronization mechanism according to claim 1, wherein: The sliding assembly (15) further comprises at least two shaft sleeves (157), wherein the shaft sleeves (157) are respectively sleeved on the first rotating shaft (11) and the second rotating shaft (12).

13. The synchronization mechanism according to claim 1, wherein: A first inclined surface (1531) is provided on the side of the first abutting portion (153) facing the first curved surface (133), and the first inclined surface (1531) cooperates with the first curved surface (133); a second inclined surface (1541) is provided on the side of the second abutting portion (154) facing the second curved surface (143), and the second inclined surface (1541) cooperates with the second curved surface (143).

14. An electronic device, characterized in that: The electronic device comprises: the electronic device comprises a first middle frame (2), a second middle frame (3), a flexible screen and a synchronization mechanism (1) according to any one of claims 1 to 13; The first middle frame (2) is connected to the first swing member (13) in the synchronization mechanism (1), and the second middle frame (3) is respectively connected to the second swing member (14) in the synchronization mechanism (1); The flexible screen covers the first middle frame (2) and the second middle frame (3).

15. The electronic device according to claim 14, wherein: The electronic device further comprises a base (4), a main swing member (5) and a damping swing member (6); the synchronization mechanism (1), the main swing member (5) and the damping swing member (6) are all mounted on the base (4).

16. The electronic device according to claim 15, wherein: The synchronization mechanism (1) is located between the main oscillating member (5) and the damping oscillating member (6).

Images