Connection structure and electronic equipment

Abstract

This application provides a connection structure and an electronic device, relating to the field of electronic device technology. The connection structure includes: a spindle assembly; two connecting brackets disposed opposite each other on both sides of the spindle assembly; a transmission member, one end of which is movably connected to the spindle assembly and the other end slidably connected to the connecting bracket; and two swing arm assemblies disposed opposite each other on both sides of the spindle assembly. Each swing arm assembly includes at least one first swing arm and at least one second swing arm. The two ends of the first swing arm are movably connected to the spindle assembly and the connecting bracket, respectively, and the two ends of the second swing arm are movably connected to the spindle assembly and the transmission member, respectively. When the swing arm assembly switches from an unfolded state to a folded state, the transmission member can slide relative to the connecting bracket, and the second swing arm can slide relative to the transmission member.

Description

Technical Field

[0001] This application relates to the field of electronic equipment technology, and more particularly to a connection structure and an electronic device. Background Technology

[0002] Current folding teardrop-shaped hinge designs typically employ a linkage-slider structure consisting of a track arm, a torque arm, and a connecting bracket. The connecting bracket is fixed to the electronic device's frame, and its movement trajectory is controlled by the track arm and torque arm. During the transition from an unfolded to a closed state, the connecting bracket needs to slide outward relative to the torque arm to provide sufficient space for the screen. However, because the connecting bracket and torque arm are connected via a linear groove, the amount of contact between them gradually decreases as the connecting bracket slides outward. This means that to ensure sufficient screen space, the outward sliding distance of the connecting bracket needs to be increased, but this affects the stability of the connection between the connecting bracket and the torque arm when the device is closed. Utility Model Content

[0003] To address the aforementioned technical problems, this application provides the following technical solutions:

[0004] The first aspect of this application provides a connection structure, including: a spindle assembly; a connecting bracket, with two connecting brackets disposed opposite to each other on both sides of the spindle assembly; a transmission member, one end of which is movably connected to the spindle assembly and the other end of which is slidably connected to the connecting bracket; and a swing arm assembly, with two swing arm assemblies disposed opposite to each other on both sides of the spindle assembly, each swing arm assembly including at least one first swing arm and at least one second swing arm, the two ends of the first swing arm being movably connected to the spindle assembly and the connecting bracket respectively, and the two ends of the second swing arm being movably connected to the spindle assembly and the transmission member respectively; when the swing arm assembly is switched from an unfolded state to a folded state, the transmission member can slide relative to the connecting bracket, and the second swing arm can slide relative to the transmission member.

[0005] In some embodiments, the transmission component includes: a slider slidably connected to the connecting bracket and slidable relative to the connecting bracket in a first direction; and a connecting arm, one end of which is slidably connected to the spindle assembly and the other end of which is hinged to the slider.

[0006] In some embodiments, the spindle assembly is configured with parallel and spaced first and second arc-shaped grooves, the first and second arc-shaped grooves are arranged along the axial direction of the spindle assembly, and the center height of the first arc-shaped groove in the thickness direction of the spindle assembly is higher than the center height of the second arc-shaped groove; the first swing arm is provided with a first arc-shaped protrusion adapted to and slidably connected to the first arc-shaped groove, and the transmission member is provided with a second arc-shaped protrusion adapted to and slidably connected to the second arc-shaped groove.

[0007] In some embodiments, the spindle assembly is configured with parallel and spaced first and second arc-shaped grooves, which are arranged along the axial direction of the spindle assembly; the first swing arm is provided with a first arc-shaped protrusion adapted to and slidably connected to the first arc-shaped groove, and the transmission member is provided with a second arc-shaped protrusion adapted to and slidably connected to the second arc-shaped groove; wherein, the distance from the end of the first swing arm near the connecting bracket to the spindle assembly is greater than the distance from the end of the transmission member near the connecting bracket to the spindle assembly.

[0008] In some embodiments, the slider is provided with a groove extending along a first direction, and the length of the groove is greater than the width of the connecting bracket along the first direction, and the thickness of the slider decreases from the end away from the main spindle assembly to the end closer to the main spindle assembly; the first end of the second swing arm is rotatably connected to the main spindle assembly, and its second end is provided with a sliding portion adapted to the groove.

[0009] In some embodiments, the spindle assembly is provided with a fixed rod that is disposed opposite to and extends in the axial direction, and the fixed rod is provided with a first cam; the first end of the second swing arm is provided with a connecting part, the connecting part is sleeved on the fixed rod, and one side of the connecting part is provided with a second cam that is adapted to the first cam; an elastic member is sleeved on the fixed rod and can extend and retract in the extension direction of the fixed rod, one end of which abuts against the first cam and the other end abuts against the spindle assembly.

[0010] In some embodiments, the connecting part is provided with a first engaging part, and the spindle assembly is provided with a second engaging part adapted to the first engaging part; the second engaging part is provided with a connecting slider, the two connecting sliders are slidably connected, and the opposite ends of the connecting sliders are provided with a sliding hole; the second swing arm is provided with a sliding post that passes through the sliding hole and is slidably connected to the sliding hole.

[0011] In some embodiments, when the swing arm assembly is in the deployed state, the adjacent sidewalls of the two opposing first swing arms form first clearance surfaces, and a V-shaped clearance groove is formed between the two first clearance surfaces.

[0012] In some embodiments, a second clearance surface is provided at one end of the two first swing arms facing away from each other, and a support surface is provided between the first clearance surface and the second clearance surface; wherein, the first clearance surface and the support surface form a first angle, and the second clearance surface and the support surface form a second angle, and both the first angle and the second angle are greater than 90°.

[0013] A second aspect of this application provides an electronic device, comprising: a connecting structure, including: a spindle assembly; a connecting bracket, two connecting brackets being disposed opposite to each other on both sides of the spindle assembly; a transmission member, one end of which is movably connected to the spindle assembly and the other end of which is slidably connected to the connecting bracket; a swing arm assembly, two swing arm assemblies being disposed opposite to each other on both sides of the spindle assembly, each swing arm assembly including at least one first swing arm and at least one second swing arm, the two ends of the first swing arm being movably connected to the spindle assembly and the connecting bracket respectively, and the two ends of the second swing arm being movably connected to the spindle assembly and the transmission member respectively; when the swing arm assembly is switched from an unfolded state to a folded state, the transmission member can slide relative to the connecting bracket, and the second swing arm can slide relative to the transmission member; a first housing and a second housing, located on a first surface of the connecting structure, disposed opposite to each other on both sides of the spindle assembly and connected to the connecting bracket; a support plate, disposed on a second surface of the connecting structure opposite to the first surface, the support plate including a first support portion and a second support portion rotatably connected, the extension direction of the rotation axis of the support plate being the same as the extension direction of the spindle assembly, the two opposite sides of the support plate being connected to the connecting bracket; and a flexible display screen, disposed on the side of the support plate opposite to the connecting structure and covering the first housing and the second housing. Attached Figure Description

[0014] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application are illustrated by way of example and not limitation, with the same or corresponding reference numerals denoteing the same or corresponding parts, wherein:

[0015] Figure 1 A schematic diagram illustrating the unfolded state of the current folded teardrop-shaped pivot structure is shown.

[0016] Figure 2 A schematic diagram illustrating the folded state of the current folded teardrop-shaped pivot structure is shown.

[0017] Figure 3 A schematic diagram of the first angle unfolded state of a connection structure provided in this application is shown.

[0018] Figure 4 A schematic diagram of a connection structure provided in this application is shown.

[0019] Figure 5 A schematic diagram of a second angle structure of a connection structure provided in this application is shown.

[0020] Figure 6 A partial structural diagram of a connection structure provided in this application in a folded state is schematically shown;

[0021] Figure 7An exploded view schematically illustrates a connection structure provided in this application;

[0022] Figure 8 A partial structural diagram of a connection structure provided in this application is shown schematically.

[0023] Figure 9 A schematic diagram of the connecting slider of a connecting structure provided in this application is shown.

[0024] Figure 10 A schematic diagram of the connecting bracket of a connecting structure provided in this application is shown.

[0025] Figure 11 A schematic diagram of the structure of the first arc-shaped groove of a connection structure provided in this application is shown.

[0026] Figure 12 A schematic diagram of the structure of the second arc-shaped groove of a connection structure provided in this application is shown.

[0027] Figure 13 A partial structural diagram of a spindle assembly with a connection structure provided in this application is shown schematically.

[0028] Figure 14 A schematic diagram of the structure of an electronic device provided in this application from a first angle is shown.

[0029] Figure 15 A partial structural diagram of an electronic device provided in this application is shown schematically.

[0030] Explanation of icon numbers:

[0031] 1. Spindle assembly; 11. First arc-shaped groove; 12. Second arc-shaped groove; 13. Fixed rod; 131. First cam; 14. Second engaging part; 141. Connecting slider; 142. Sliding hole; 2. Connecting bracket; 3. Transmission component; 31. Sliding component; 311. Slide groove; 32. Connecting arm; 321. Second arc-shaped protrusion; 4. Swing arm assembly; 41. First swing arm; 411. First arc-shaped protrusion; 412. First clearance surface; 413. Support surface; 414. Second clearance surface 42. Second swing arm; 422. Sliding part; 423. Connecting part; 4231. Second cam; 4232. First engaging part; 424. Sliding column; 53. Elastic element; 6. Support plate; 61. First support part; 62. Second support part; 7. Torque arm; 8. Flexible display screen; 9. Screen housing space; 10. First housing; 101. Second housing; 100. Connecting structure; A. First direction; B. Axial direction; α. First included angle; β. Second included angle. Detailed Implementation

[0032] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0033] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application pertains.

[0034] Currently, such as Figures 1-2 As shown, folding devices widely employ a linkage-slider structure consisting of a track arm, a torque arm 7, and a connecting bracket 2 as the core mechanical component for screen folding. The connecting bracket 2 is typically fixed to the mid-frame of the electronic device, and its movement trajectory is controlled by the linkage of the track arm and the torque arm 7, thus achieving a smooth transition between the unfolded and closed states of the screen. However, during the transition from the unfolded to the closed state, to meet the space requirements for flexible screen bending, the connecting bracket 2 needs to slide outward relative to the torque arm 7 to create a larger internal accommodating area. Currently, the connecting bracket 2 and the torque arm 7 often use a linear groove 311 connection. While this structure facilitates the sliding function, the overlap between the two gradually decreases during the outward sliding process, leading to a decrease in structural coupling strength. If the outward sliding distance of the connecting bracket 2 is further extended to increase the screen accommodating space 9, it may significantly weaken the structural stability between the connecting bracket 2 and the torque arm 7 in the closed state, affecting the overall rigidity and reliability of the device.

[0035] Example 1

[0036] The first aspect of this application provides a connection structure 100, including: a spindle assembly 1; two connecting brackets 2, which are disposed opposite to each other on both sides of the spindle assembly 1; a transmission member 31, one end of which is movably connected to the spindle assembly 1 and the other end of which is slidably connected to the connecting bracket 2; and two swing arm assemblies 4, which are disposed opposite to each other on both sides of the spindle assembly 1. Each swing arm assembly 4 includes at least one first swing arm 41 and at least one second swing arm 42. The two ends of the first swing arm 41 are movably connected to the spindle assembly 1 and the connecting bracket 2, respectively, and the two ends of the second swing arm 42 are movably connected to the spindle assembly 1 and the transmission member 31, respectively. When the swing arm assembly 4 is switched from an unfolded state to a folded state, the transmission member 31 can slide relative to the connecting bracket 2, and the second swing arm 42 can slide relative to the transmission member 31.

[0037] In one possible case, such as Figures 3-10As shown, the connection structure 100 can be applied to devices including but not limited to mobile phones, tablets, and e-readers. The main spindle assembly 1 is the core rotation axis of the entire connection structure 100, and both the first swing arm 41 and the second swing arm 42 swing around the main spindle assembly 1 as a fulcrum. Two connecting brackets 2 can be arranged on opposite sides of the main spindle assembly 1. The two connecting brackets 2 can be symmetrically located on both sides of the main spindle assembly 1 and fixedly connected to the two housings of the electronic device, used to drive the housings to move relative to the device screen. The connecting brackets 2 can be plate-shaped or frame-shaped structures, and their extension direction is the same as the axial extension direction of the main spindle assembly. One end of the transmission component 31 is movably connected to the main spindle assembly 1, and the other end is slidably connected to the bracket, used to link and guide the movement of the connecting brackets 2. The two sides of the main spindle assembly 1 can be symmetrically arranged with swing arm assemblies 4. Each swing arm assembly 4 includes at least one first swing arm 41 and at least one second swing arm 42. The two ends of the first swing arm 41 can be movably connected to the main spindle assembly 1 and the connecting bracket 2 respectively through a pin, a rotating shaft or other structure. One end of the second swing arm 42 can be movably connected to the main spindle assembly 1, and the other end can be slidably connected to the transmission component 31.

[0038] like Figure 7 , Figure 11 , Figure 12 , Figure 13As shown, the spindle assembly 1 has parallel and spaced first arc-shaped grooves 11 and second arc-shaped grooves 12, which are arranged along the axial direction B of the spindle assembly 1. The center height of the first arc-shaped groove 11 in the thickness direction of the spindle assembly 1 is higher than that of the second arc-shaped groove 12, meaning they are located on different horizontal planes but remain parallel to each other. Both ends of the two arc-shaped grooves extend to opposite edges of the spindle assembly 1. A first arc-shaped protrusion 411 is provided at one end of the first swing arm 41, which is adapted to the first arc-shaped groove 11 and can be slidably embedded therein. The other end of the first swing arm 41 can be movably connected to the connecting bracket 2 via a pin. A second arc-shaped protrusion 321 is provided at one end of the transmission member 31, which is adapted to the second arc-shaped groove 12 and can be slidably embedded therein. The other end of the transmission member 31 is slidably connected to the connecting bracket 2, and its sliding direction is parallel to the first direction A. The first arc-shaped groove 11 can be a recess on the main shaft assembly 1, and is arc-shaped. Its two ends are used to guide the movement of two first swing arms 41. The first arc-shaped protrusion 411 of each first swing arm 41 is embedded in the first arc-shaped groove 11, allowing the swing arm to slide within the groove and rotate around the main shaft assembly 1. Similarly, the second arc-shaped groove 12 can also be a recess on the main shaft assembly 1, and is arc-shaped. It is located at a different height plane than the first arc-shaped groove 11, with its center lower than the first arc-shaped groove 11. The two ends of the second arc-shaped groove 12 are used to guide the movement of two second swing arms 42. The second arc-shaped protrusion 321 of each second swing arm 42 is embedded in the second arc-shaped groove 12, allowing the transmission component 31 to slide within the groove and rotate around the main shaft assembly 1. Swing arm assemblies 4 are symmetrically arranged on both sides of the main shaft assembly 1, with each side including at least one first swing arm 41 and one second swing arm 42, ensuring that the movement of the left and right sides is synchronized and balanced when the device is folded.

[0039] During the transition from the unfolded to the folded state of the swing arm assembly 4, the first swing arm 41 begins to swing around the main shaft assembly 1. One end of the first swing arm 41 has a first arc-shaped protrusion 411 that matches the first arc-shaped groove 11 on the main shaft assembly 1. The first arc-shaped protrusion 411 slides along the arc-shaped groove, thereby ensuring that the first swing arm 41 moves smoothly along a preset trajectory. At the same time, the other end of the first swing arm 41 drives the connecting bracket 2 to slide and lift away from the main shaft assembly 1. One end of the transmission component 31 is embedded in the second arc-shaped groove 12 on the main shaft assembly 1 through the second arc-shaped protrusion 321, and the other end is slidably connected to the guide groove inside the connecting bracket 2. The extension direction of the guide groove is parallel to the first direction A, and it moves synchronously with the displacement of the connecting bracket 2. Since the center height of the second arc-shaped groove 12 is lower than that of the first arc-shaped groove 11, a certain height difference is formed between the first swing arm 41 and the end of the transmission component 31 away from the main shaft assembly 1, thereby pushing the transmission component 31 to slide relative to the connecting bracket 2. Meanwhile, one end of the second swing arm 42 is movably connected to the main shaft assembly 1 via a pin, while the other end is slidably connected to the surface of the transmission component 31. During the transition from the unfolded state to the folded state of the swing arm assembly 4, the second swing arm 42 always maintains a certain overlap with the transmission component 31, ensuring effective connection and thus avoiding the decoupling problem caused by excessive sliding in the traditional linear slide groove 311 structure. This dynamic overlapping and coordination mechanism among multiple components not only achieves precise control over the movement trajectory of the connecting bracket 2 but also enhances the overall mechanical stability of the structure through continuous coupling between structures, indirectly improving the connection strength between the second swing arm 42 and the connecting bracket 2, and significantly improving the rigidity and deformation resistance of the structure during folding.

[0040] In the unfolded state, the two adjacent ends of the two first swing arms 41 arranged opposite each other in the first arc-shaped groove 11 are close to each other and located in the middle of the first arc-shaped groove 11. Similarly, the adjacent ends of the two transmission members 31 arranged opposite each other in the second arc-shaped groove 12 are close to each other and located in the middle of the second arc-shaped groove 12. The sides of the first swing arms 41, transmission members 31, and second swing arms 42 facing away from the main shaft assembly 1 together form a support surface 413 for supporting the flexible screen of the electronic device. When the swing arm assembly 4 switches from the unfolded state to the folded state, the ends of the opposing first swing arms 41 and transmission members 31 that are away from the main shaft assembly 1 move closer to each other, while the adjacent ends of the first swing arms 41 and transmission members 31 move further apart, thus forming a screen-accommodating space 9 between the swing arm assembly 4, the main shaft assembly 1, and the transmission members 31.

[0041] Furthermore, since the center height of the first arc-shaped groove 11 is higher than that of the second arc-shaped groove 12, when the swing arm assembly 4 swings from the unfolded state to the folded state, the sliding path of the two first swing arms 41 is guided by the first arc-shaped groove 11 with the higher center, causing it to undergo a greater displacement in the thickness direction of the main shaft assembly 1. During the folding process, the first swing arms 41 lift outward more significantly, pushing the connecting brackets 2 on both sides to slide outward and lift synchronously. The two adjacent ends of the two first swing arms 41 move away from each other and lift in the thickness direction of the main shaft assembly 1, thereby expanding the cavity area between the two first swing arms 41 and forming a larger screen-accommodating space 9.

[0042] In some embodiments, the transmission member 31 includes: a slider 31, which is slidably connected to the connecting bracket 2 and can slide relative to the connecting bracket 2 along a first direction A; and a connecting arm 32, one end of which is slidably connected to the spindle assembly 1 and the other end of which is hinged to the slider 31.

[0043] In one possible case, such as Figure 3 , Figure 4 , Figure 7 As shown, the transmission component 31 may include a slider 31 and a connecting arm 32. The slider 31 is slidably connected to the connecting bracket 2 via a slide rail or a slider. The extension direction of the slide rail is parallel to the first direction A, where the first direction A is the width direction of the connecting bracket 2. The end of the connecting arm 32 opposite to the slider 31 is provided with a second arc-shaped protrusion 321 and is slidably connected to the second arc-shaped groove 12 through the second arc-shaped protrusion 321. The other end of the connecting arm 32 is hinged to the slider 31. This transmission component 31 adopts a separate arrangement of the slider 31 and the connecting arm 32, and realizes multi-degree-of-freedom linkage with the main shaft assembly 1 and the connecting bracket 2 through a sliding guide structure, which significantly improves the motion control accuracy and mechanical stability of the folding shaft structure.

[0044] In some embodiments, the slider 31 is provided with a groove 311 extending along the first direction A, and the extension length of the groove 311 is greater than the width of the connecting bracket 2 along the first direction A, and the thickness of the slider 31 decreases from the end away from the main spindle assembly 1 to the end closer to the main spindle assembly 1; the first end of the second swing arm 42 is rotatably connected to the main spindle assembly 1, and its second end is provided with a sliding portion 422 adapted to the groove 311.

[0045] In one possible case, such as Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8As shown, the sliding member 31 is provided with a groove 311, which extends along the first direction A. The extension length of the groove 311 along the first direction A is greater than the width of the connecting bracket 2 along the first direction A, so as to provide an additional sliding range for the second swing arm 42. The first end of the second swing arm 42 is rotatably connected to the main shaft assembly 1 via a rotating shaft, and its second end is provided with a sliding part 422 adapted to the groove 311. The sliding part 422 can be a plate-like structure adapted to the groove 311. The extension length of the groove 311 on the sliding member 31 is greater than the width of the connecting bracket 2, so that the second swing arm 42 can have a larger sliding range within the groove 311, increasing the overlap area between the two and improving the overall rigidity and stability.

[0046] In addition, the thickness of the slider 31 decreases from the end away from the main shaft assembly 1 to the end closer to the main shaft assembly 1. That is, the thickness of the slider 31 gradually becomes thinner from the side away from the main shaft assembly 1 to the side closer to the main shaft assembly 1. This tapered structure provides space avoidance in the folded state, avoids interference between the second swing arm 42 and other mechanical parts, and provides more bending space for the flexible screen.

[0047] In some embodiments, the spindle assembly 1 is provided with a fixed rod 13 that is disposed opposite to it and extends along the axial direction B, and the fixed rod 13 is provided with a first cam 131; the first end of the second swing arm 42 is provided with a connecting part 423, the connecting part 423 is sleeved on the fixed rod 13, and one side of the connecting part 423 is provided with a second cam 4231 that is adapted to the first cam 131; the elastic member 53 is sleeved on the fixed rod 13 and can extend and retract along the extension direction of the fixed rod 13, one end of which abuts against the first cam 131 and the other end abuts against the spindle assembly 1.

[0048] In one possible case, such as Figures 3-8As shown, the main spindle assembly 1 has two oppositely arranged fixed rods 13 on both sides. The fixed rods 13 extend along the axial direction B and can be cylindrical, used to support and guide the rotation of the second swing arm 42. A first cam 131 is provided on the fixed rod 13. The connecting part 423 at the first end of the second swing arm 42 can be annular, sleeved on the fixed rod 13, and rotates with the main spindle assembly 1 by passing through the fixed rod 13. A second cam 4231 adapted to the first cam 131 is provided on one side of the connecting part 423. The first cam 131 and the second cam 4231 have curved or stepped structures, used to cooperate to achieve angle limiting and engagement. An elastic element 53 can be sleeved on the fixed rod 13, located between the first cam 131 and the main spindle assembly 1. The elastic element 53 can be a compression spring, torsion spring, etc. One end of the elastic element 53 abuts against the first cam 131, and the other end abuts against the main shaft assembly 1. The elastic element 53 is used to provide a restoring force. The second cam 4231 of the second swing arm 42, the first cam 131 of the fixed rod 13, and the elastic element 53 cooperate with each other to enable the second swing arm 42 to automatically switch from the hovering state to the unfolded or folded state. If the swing arm assembly 4 exceeds a certain critical angle during the switching process from the unfolded state to the folded state or from the folded state to the unfolded state, the second cam 4231 disengages from the stable area of ​​the first cam 131, and the elastic element 53 begins to release energy, pushing the first cam 131 and applying torque to the second swing arm 42. The torque drives the second swing arm 42 to rotate around the fixed rod 13, thereby driving the entire swing arm assembly 4 to quickly complete the switch to the unfolded or folded state. After the switch is completed, the second cam 4231 re-enters the next stable engagement point and completes the automatic locking. In addition, when the swing arm assembly 4 is at a certain intermediate angle, the second cam 4231 is located in a transition area of ​​the first cam 131. At this time, there is a certain friction and support between the two, which allows the swing arm assembly 4 to be suspended in this position for a short time. After the user releases his hand, the swing arm assembly 4 will not slide on its own and will remain stable.

[0049] In some embodiments, the connecting part 423 is provided with a first engaging part 4232, and the main shaft assembly 1 is provided with a second engaging part 14 adapted to the first engaging part 4232; the second engaging part 14 is provided with a connecting slider 141, the two connecting sliders 141 are slidably connected, and the opposite ends of the connecting sliders 141 are provided with a sliding hole 142; the second swing arm 42 is provided with a sliding post 424 that passes through the sliding hole 142 and is slidably connected to the sliding hole 142.

[0050] In one possible case, such as Figures 3-9As shown, the first engaging portion 4232 can be a protrusion provided in the connecting portion 423, and the second engaging portion 14 can be a clearance groove provided in the spindle assembly 1 that is adapted to the first engaging portion 4232, extending to both sides of the spindle assembly 1. Two connecting sliders 141 symmetrically arranged on both sides of the spindle assembly 1 and corresponding to the two second swing arms 42 can be provided in the second engaging portion 14. The two connecting sliders 141 can be slidably connected along the extending direction of the clearance groove. A sliding hole 142 is provided at one end of the connecting slider 141 facing away from each other, for engaging with a sliding post 424 on the second swing arm 42 to form a sliding connection. When one side of the second swing arm 42 moves, the sliding post 424 pushes the connecting slider 141 to move, thereby causing the sliding post 424 on the other side and the second swing arm 42 to move synchronously, thus realizing the linkage of the two swing arm assemblies 4.

[0051] In some embodiments, when the swing arm assembly 4 is in the unfolded state, the adjacent sidewalls of the two opposing first swing arms 41 are first clearance surfaces 412, and a V-shaped clearance groove is formed between the two first clearance surfaces 412.

[0052] In one possible case, such as Figure 7 As shown, the adjacent sidewalls of the two first swing arms 41 are first clearance surfaces 412. The first clearance surfaces 412 can be inclined planes or arc-shaped surfaces, and the included angle between the two first clearance surfaces 412 can be any angle, such as 30°, 60°, etc. When the swing arm assembly 4 is in the unfolded state, the two first swing arms 41 are symmetrically distributed, and the first clearance surfaces 412 on their adjacent sidewalls are opposite to each other, defining a V-shaped clearance groove. The V-shaped clearance groove is located in the central area between the two first swing arms 41, and the opening direction is towards the bending area of ​​the flexible screen. The depth and width of the V-shaped clearance groove can be optimized according to the screen thickness and folding trajectory. During the folding process, as the first swing arms 41 retract inward around the main shaft assembly 1, the two first clearance surfaces 412 move away from each other, thereby further releasing the screen-accommodating space 9 between the two swing arm assemblies 4 and reducing the mechanical pressure on the flexible screen.

[0053] In some embodiments, the two first swing arms 41 are provided with a second clearance surface 414 at opposite ends, and a support surface 413 is provided between the first clearance surface 412 and the second clearance surface 414; wherein the first clearance surface 412 and the support surface 413 form a first included angle α, and the second clearance surface 414 and the support surface 413 form a second included angle β, and both the first included angle α and the second included angle β are greater than 90°.

[0054] In one possible case, such as Figure 5 , Figure 7As shown, the two opposing first swing arms 41 have a second clearance surface 414 at their opposite ends. A support surface 413 is provided between the first clearance surface 412 and the second clearance surface 414. The support surface 413 is used to support the flexible screen and can be a plane. In the unfolded state, the support surface 413 is parallel to the horizontal plane. A first angle α is formed between the first clearance surface 412 and the support surface 413, and a second angle β is formed between the second clearance surface 414 and the support surface 413. In order to form a V-shaped groove between the two first clearance surfaces 412 of the two opposing first swing arms 41 to avoid the flexible screen, the first angle α between the first clearance surface 412 and the support surface 413 is greater than 90°. The second angle β between the second clearance surface 414 and the support surface 413 is greater than 90°, that is, the two opposing second clearance surfaces 414 are inclined in opposite directions to increase the screen-accommodating space 9 between the two swing arm assemblies 4 and avoid interference with the shell or other structures. During the folding process, as the first swing arm 41 retracts inward around the main shaft assembly 1, the two first clearance surfaces 412 move away from each other, and the two second clearance surfaces 414 also expand outward in opposite directions, thereby dynamically releasing the screen space 9 and preventing the flexible screen from being compressed or rubbed by the mechanical structure.

[0055] A second aspect of this application provides an electronic device, comprising: a connection structure 100, including: a spindle assembly 1; two connecting brackets 2 disposed opposite to each other on both sides of the spindle assembly 1; a transmission member 31, one end of which is movably connected to the spindle assembly 1 and the other end of which is slidably connected to the connecting bracket 2; and a swing arm assembly 4, two swing arm assemblies 4 disposed opposite to each other on both sides of the spindle assembly 1, each swing arm assembly 4 including at least one first swing arm 41 and at least one second swing arm 42, the two ends of the first swing arm 41 being movably connected to the spindle assembly 1 and the connecting bracket 2 respectively, and the two ends of the second swing arm 42 being movably connected to the spindle assembly 1 and the transmission member 31 respectively; the swing arm assembly 4 can switch from an unfolded state to a folded state. In this state, the transmission component 31 can slide relative to the connecting bracket 2, and the second swing arm 42 slides relative to the transmission component 31; the first housing 10 and the second housing 101 are located on the first surface of the connecting structure 100 and are disposed opposite to each other on both sides of the main shaft assembly 1 and connected to the connecting bracket 2; the support plate 6 is disposed on the second surface of the connecting structure 100 opposite to the first surface, and the support plate 6 includes a first support part 61 and a second support part 62 rotatably connected, the extension direction of its rotation axis is the same as the extension direction of the main shaft assembly 1, and the two opposite sides of the support plate 6 are connected to the connecting bracket 2; the flexible display screen 8 is disposed on the side of the support plate 6 opposite to the connecting structure 100 and covers the first housing 10 and the second housing 101.

[0056] In one possible case, such as Figure 14 , Figure 15As shown, this application provides an electronic device, which can be a mobile phone, tablet computer, or similar device. The screen of this electronic device can be a flexible display screen 8, which may include multiple housings sharing one flexible display screen 8. The electronic device may include multiple connecting structures 100 for connecting the multiple housings; the number of housings can be 2, 3, 5, etc. For example, the electronic device includes a first housing 10 and a second housing 101, disposed on the first surface of the connecting structure 100 and respectively disposed on both sides of the main shaft. The first housing 10 and the second housing 101 on both sides of the main shaft can be connected by one or more connecting structures 100, and the first housing 10 and the second housing 101 are respectively connected to connecting brackets 2 on both sides of the main shaft assembly 1 of the multiple connecting structures 100. A support plate 6 is disposed on the second surface of the connecting structure 100 opposite to the first surface. The side of the support plate 6 opposite to the connecting structure 100 is used to contact the flexible screen of the electronic device to support the flexible screen. The support plate 6 includes a first support portion 61 and a second support portion 62 connected by a rotating shaft, the extension direction of which is the same as the extension direction of the main shaft assembly 1. The first support part 61 is connected to the connecting bracket 2 on one side of the main spindle assembly 1, and the second support part 62 is connected to the connecting bracket 2 on the other side of the main spindle assembly 1. The first support part 61 and the second support part 62 can rotate relative to each other with the relative swing of the swing arm assembly 4, or rotate in opposite directions with the swing arm assembly 4 swinging in opposite directions. The flexible display screen 8 is disposed on the side of the support plate 6 opposite to the connecting structure 100, and covers the first housing 10 and the second housing 101. When the swing arm assembly 4 is in the unfolded state, the flexible display screen 8 remains flat. In the folded state, the flexible display screen 8 is bent between the first support part 61 and the second support part 62.

[0057] With the swing arm assembly 4 in its unfolded state, the first housing 10 and the second housing 101 are also in an unfolded posture. The flexible screen remains flat, and the first support portion 61 and the second support portion 62 of the support plate 6 are arranged in a straight line to support the screen. During the folding process of the swing arm assembly 4, the user pushes the first housing 10 and the second housing 101 inward. The connecting bracket 2 drives the first swing arm 41 to move closer to the main shaft assembly 1. The transmission component 31 slides on the connecting bracket 2, and the second swing arm 42 slides relative to the transmission component 31. The first support portion 61 and the second support portion 62 of the support plate 6 rotate relative to each other around the rotation axis, guiding the flexible screen to bend. The support plate 6 is located between the connecting structure 100 and the flexible screen, providing structural support while also preventing the flexible screen from wrinkling or being damaged due to uneven force. In this electronic device, the continuous coupling between the structures enhances the overall mechanical stability of the structure, indirectly improving the connection strength between the second swing arm 42 and the connecting bracket 2, and significantly improving the rigidity and deformation resistance of the structure during the folding process.

[0058] Example 2

[0059] In some embodiments, the spindle assembly 1 is provided with parallel and spaced first arc-shaped grooves 11 and second arc-shaped grooves 12, the first arc-shaped grooves 11 and the second arc-shaped grooves 12 being arranged along the axial direction B of the spindle assembly 1; the first swing arm 41 is provided with a first arc-shaped protrusion 411 adapted to and slidably connected to the first arc-shaped groove 11, and the transmission member 31 is provided with a second arc-shaped protrusion 321 adapted to and slidably connected to the second arc-shaped groove 12; wherein, the distance from the end of the first swing arm 41 near the connecting bracket 2 to the spindle assembly 1 is greater than the distance from the end of the transmission member 31 near the connecting bracket 2 to the spindle assembly 1.

[0060] Unlike Embodiment 1, the distance from the end of the first swing arm 41 near the connecting bracket 2 to the main shaft assembly 1 is greater than the distance from the end of the transmission component 31 near the connecting bracket 2 to the main shaft assembly 1. When the swing arm assembly 4 switches from the unfolded state to the folded state, the first swing arm 41, due to its longer lever arm, will generate a larger vertical displacement during the swinging process around the main shaft assembly 1. Here, the vertical direction is the thickness direction of the main shaft assembly 1. The transmission component 31, being closer to the main shaft assembly 1, has a relatively smaller vertical displacement. Thus, a significant height difference is formed between the first swing arm 41 and the transmission component 31 at the ends furthest from the main shaft assembly 1. This height difference further drives the connecting bracket 2 to slide outward and lift, while simultaneously ensuring a certain amount of overlap between the second swing arm 42 and the transmission component 31, and between the transmission component 31 and the connecting bracket 2. This overlap not only ensures effective connection and force transmission between the components but also improves the stability and rigidity of the structure during the folding process, avoiding the loosening or jamming problems caused by decoupling in traditional structures.

[0061] It should be noted that in the description of this specification, the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0062] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0063] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model 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 utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A connection structure characterized by comprising: include: Spindle assembly; Connecting brackets, two of which are disposed opposite to each other on both sides of the spindle assembly; A transmission component, one end of which is movably connected to the main shaft assembly, and the other end of which is slidably connected to the connecting bracket; The swing arm assembly comprises two swing arm assemblies disposed opposite to each other on both sides of the main spindle assembly. Each swing arm assembly includes at least one first swing arm and at least one second swing arm. The two ends of the first swing arm are movably connected to the main spindle assembly and the connecting bracket, respectively, and the two ends of the second swing arm are movably connected to the main spindle assembly and the transmission component, respectively. When the swing arm assembly switches from the unfolded state to the folded state, the transmission member can slide relative to the connecting bracket, and the second swing arm slides relative to the transmission member.

2. The connection structure according to claim 1, characterized in that The transmission component includes: A sliding member is slidably connected to the connecting bracket and is slidable relative to the connecting bracket along a first direction; The connecting arm has one end slidably connected to the spindle assembly and the other end hinged to the slider.

3. The connection structure according to claim 1, characterized in that, The spindle assembly is configured with a parallel and spaced first arc-shaped groove and a second arc-shaped groove, the first arc-shaped groove and the second arc-shaped groove are arranged along the axial direction of the spindle assembly, and the center height of the first arc-shaped groove in the thickness direction of the spindle assembly is higher than the center height of the second arc-shaped groove. The first swing arm is provided with a first arc-shaped protrusion that is adapted to and slidably connected to the first arc-shaped groove, and the transmission component is provided with a second arc-shaped protrusion that is adapted to and slidably connected to the second arc-shaped groove.

4. The connection structure according to claim 1, characterized in that, The spindle assembly is provided with a first arc-shaped groove and a second arc-shaped groove that are parallel and spaced apart, and the first arc-shaped groove and the second arc-shaped groove are arranged along the axial direction of the spindle assembly; The first swing arm is provided with a first arc-shaped protrusion that is adapted to and slidably connected to the first arc-shaped groove, and the transmission component is provided with a second arc-shaped protrusion that is adapted to and slidably connected to the second arc-shaped groove; Wherein, the distance from the end of the first swing arm near the connecting bracket to the spindle assembly is greater than the distance from the end of the transmission member near the connecting bracket to the spindle assembly.

5. The connection structure according to claim 2, characterized in that, The slider is provided with a groove extending in a first direction, and the length of the groove is greater than the width of the connecting bracket in the first direction, and the thickness of the slider decreases from the end away from the main spindle assembly to the end closer to the main spindle assembly. The first end of the second swing arm is rotatably connected to the main shaft assembly, and its second end is provided with a sliding part adapted to the slide groove.

6. The connection structure according to claim 5, characterized in that, The spindle assembly is equipped with a fixed rod that is oppositely arranged and extends in the axial direction, and the fixed rod is provided with a first cam; The first end of the second swing arm is provided with a connecting part, which is sleeved on the fixed rod, and a second cam adapted to the first cam is provided on one side of the connecting part; An elastic element is sleeved on the fixed rod and can extend and retract along the extension direction of the fixed rod. One end of the elastic element abuts against the first cam, and the other end abuts against the main shaft assembly.

7. The connection structure according to claim 6, characterized in that, The connecting part is provided with a first engaging part, and the spindle assembly is provided with a second engaging part that is adapted to the first engaging part; The second engaging part is provided with a connecting slider, the two connecting sliders are slidably connected, and the opposite ends of the connecting sliders are provided with sliding holes; The second swing arm is provided with a sliding post that passes through the sliding hole and is slidably connected to the sliding hole.

8. The connection structure according to claim 1, characterized in that, When the swing arm assembly is in the deployed state, the adjacent sidewalls of the two opposing first swing arms form the first clearance surfaces, and a V-shaped clearance groove is formed between the two first clearance surfaces.

9. The connection structure according to claim 8, characterized in that, The two first swing arms are provided with a second clearance surface at opposite ends, and a support surface is provided between the first clearance surface and the second clearance surface; Wherein, the first clearance surface forms a first angle with the supporting surface, and the second clearance surface forms a second angle with the supporting surface, and both the first angle and the second angle are greater than 90°.

10. An electronic device, comprising: include: The connection structure includes: Spindle assembly; Connecting brackets, two of which are disposed opposite to each other on both sides of the spindle assembly; A transmission component, one end of which is movably connected to the main shaft assembly, and the other end of which is slidably connected to the connecting bracket; The swing arm assembly comprises two swing arm assemblies disposed opposite to each other on both sides of the main spindle assembly. Each swing arm assembly includes at least one first swing arm and at least one second swing arm. The two ends of the first swing arm are movably connected to the main spindle assembly and the connecting bracket, respectively, and the two ends of the second swing arm are movably connected to the main spindle assembly and the transmission component, respectively. When the swing arm assembly switches from the unfolded state to the folded state, the transmission member can slide relative to the connecting bracket, and the second swing arm slides relative to the transmission member; The first housing and the second housing are located on the first surface of the connecting structure, and are disposed opposite to each other on both sides of the spindle assembly and connected to the connecting bracket; A support plate is disposed on the second side of the connecting structure opposite to the first side. The support plate includes a first support part and a second support part that are rotatably connected. The extension direction of its rotation axis is the same as the extension direction of the main shaft assembly. The two sides of the support plate opposite to each other are connected to the connecting bracket. A flexible display screen is disposed on the side of the support plate opposite to the connecting structure and covers the first housing and the second housing.

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