Hinge mechanism and electronic device

Abstract

The invention discloses a hinge mechanism and electronic equipment, and relates to the field of electronic products. A hinge mechanism comprises a hinge support, a frame support and a swing arm assembly. The frame body support is rotationally connected with the hinge support through the swing arm assembly, one end of the swing arm assembly is rotationally connected with the hinge support through a synchronizing shaft, and the other end of the swing arm assembly is movably connected with the frame body support; wherein one of the swing arm assembly and the frame body support is provided with a driving assembly, the driving assembly is used for driving the frame body support to move relative to the swing arm assembly according to the rotating angle of the swing arm assembly relative to the hinge support, and the moving distance of the frame body support is related to the rotating angle. The problem that the service life and the user experience are affected due to the fact that the display screen is prone to redundancy in the folding or unfolding process of current folding electronic equipment can be solved.

Description

Technical Field

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

[0002] With the rapid development of the consumer electronics industry, users have higher and higher functional requirements for electronic devices. In order to pursue the display experience of a large screen and the convenience of carrying, foldable electronic devices such as foldable mobile phones, tablets, and computers have become the best choice for most users.

[0003] In the related art, a synchronous shaft is used to realize the folding or unfolding of the hinge. However, during the folding or unfolding process of this kind of hinge, the display screen is prone to redundancy, which not only affects the service life of the display screen but also affects the user experience. Summary of the Invention

[0004] The purpose of the embodiments of this application is to provide a hinge mechanism and an electronic device, which can at least solve the problem that during the folding or unfolding process of the current hinge, the display screen is prone to redundancy, affecting the service life and user experience.

[0005] To solve the above technical problems, this application is implemented as follows: The embodiments of this application provide a hinge mechanism, including: a hinge bracket, a frame bracket, and a swing arm assembly; The frame bracket is rotatably connected to the hinge bracket through the swing arm assembly; One end of the swing arm assembly is rotatably connected to the hinge bracket through a synchronous shaft, and the other end of the swing arm assembly is movably connected to the frame bracket; wherein, One of the swing arm assembly and the frame bracket is provided with a driving component, and the driving component is used to drive the frame bracket to move relative to the swing arm assembly according to the rotation angle of the swing arm assembly relative to the hinge bracket, and the moving distance of the frame bracket is related to the rotation angle.

[0006] The embodiments of this application also provide an electronic device, including: a first frame, a second frame, a display screen, and the above hinge mechanism; The first frame and the second frame are respectively connected to the corresponding frame bracket in the hinge mechanism; The display screen is disposed on one side of the first frame and the second frame.

[0007] In the embodiments of the present application, the swing arm assembly can rotate relative to the hinge bracket, the frame bracket can move relative to the swing arm assembly, and the drive assembly can drive the frame bracket to move relative to the swing arm assembly according to the rotation angle of the swing arm assembly relative to the hinge bracket, so that the moving distance of the frame bracket is adapted to the rotation angle of the swing arm assembly, thereby meeting the requirements for the movement of the frame bracket during the opening and closing process and improving the movement accuracy of the frame bracket. Compared with the hinge mechanism in the related art, the hinge mechanism in the embodiments of the present application can adjust the position of the frame bracket by the drive assembly according to the rotation angle of the swing arm assembly relative to the hinge bracket, and at the same time control the movement amount to be related to the rotation angle by the drive assembly, so as to accurately control the moving distance and ensure the flatness of the display screen during the unfolding or folding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 The first schematic diagram of the hinge mechanism of the first form disclosed in the embodiments of the present application; Figure 2 The second schematic diagram of the hinge mechanism of the first form disclosed in the embodiments of the present application; Figure 3 The schematic diagram of the hinge mechanism of the first form disclosed in the embodiments of the present application in the folded state; Figure 4 The schematic diagram of the hinge mechanism of the first form disclosed in the embodiments of the present application in the unfolded state; Figure 5 The schematic diagram of the drive assembly, swing arm assembly, frame bracket and hinge bracket of the first form disclosed in the embodiments of the present application; Figure 6 The schematic diagram of the drive assembly of the first form disclosed in the embodiments of the present application; Figure 7 The first schematic diagram of the drive assembly, swing arm assembly, frame bracket and hinge bracket of the second form disclosed in the embodiments of the present application; Figure 8 The second schematic diagram of the drive assembly, swing arm assembly, frame bracket and hinge bracket of the second form disclosed in the embodiments of the present application; Figure 9 The schematic diagram of the drive assembly of the second form disclosed in the embodiments of the present application; Figure 10 The schematic diagram of the electronic device disclosed in the embodiments of the present application in the folded state; Figure 11 The schematic diagram of the electronic device disclosed in the embodiments of the present application in the unfolded state.

[0009] Description of the reference numerals: 01 - hinge mechanism; 10 - hinge bracket; 20 - Frame support; 30 - Swing arm assembly; 31 - First swing arm; 311 - Rack; 312 - Card slot; 32 - Transmission support; 321 - Screw sleeve; 322 - Claw; 323 - Bayonet; 40 - Drive assembly; 41 - Motor; 42 - Gear; 43 - Screw rod; 50 - Detection assembly; 60 - Torque cam assembly; 021 - First frame; 022 - Second frame; 03 - Display screen. Detailed implementation

[0010] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0011] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are usually of the same category, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally represents an "or" relationship between the associated objects before and after.

[0012] Next, the embodiments of the present application will be described in detail in conjunction with the accompanying drawings through specific embodiments and their application scenarios.

[0013] Refer to Figures 1 to 11 , the embodiments of the present application disclose a hinge mechanism 01, and the disclosed hinge mechanism 01 includes a hinge support 10, a frame support 20, a swing arm assembly 30, and a drive assembly 40.

[0014] The hinge support 10 is a basic component, which can provide a bearing foundation for the frame support 20, the swing arm assembly 30, the drive assembly 40, etc.; the frame support 20 is used to connect with the frame of the electronic device to realize the connection between the frame and the hinge mechanism 01.

[0015] One end of the swing arm assembly 30 is rotatably connected to the hinge bracket 10 through a synchronous shaft, so that the swing arm assembly 30 can rotate smoothly relative to the hinge bracket 10 around the synchronous shaft. It should be noted here that the swing arm assembly 30 is the synchronous swing arm assembly, and the swing arms of the swing arm assembly 30 on both sides of the hinge bracket 10 can be connected by meshing synchronous gears.

[0016] The frame bracket 20 is rotatably connected to the hinge bracket 10 through the swing arm assembly 30, so that the frame bracket 20 can rotate relative to the hinge bracket 10 along with the swing arm assembly 30, so that the electronic device can be folded or unfolded.

[0017] The other end of the swing arm assembly 30 is movably connected to the frame bracket 20, so that the frame bracket 20 can approach or move away from the hinge bracket 10, so as to facilitate the movement of the frame relative to the hinge bracket 10. Optionally, the frame bracket 20 and the other end of the swing arm assembly 30 can be slidably connected by means of a chute fit to ensure the smoothness of relative sliding. Exemplarily, the frame bracket 20 can be provided with at least one chute, and correspondingly, the other end of the swing arm assembly 30 can be slidably fitted with the chute, so as to ensure the smoothness of relative sliding.

[0018] To realize the sliding of the frame bracket 20 relative to the swing arm assembly 30, a driving assembly 40 can be provided on one of the swing arm assembly 30 and the frame bracket 20. The driving assembly 40 is used to drive the frame bracket 20 to move relative to the swing arm assembly 30 according to the rotation angle of the swing arm assembly 30 relative to the hinge bracket 10, wherein the moving distance of the frame bracket 20 is related to the rotation angle. Based on this, under the driving action of the driving assembly 40, the frame bracket 20 and the swing arm assembly 30 can slide relative to each other to adjust the positions of the frame bracket 20 and the frame connected to the frame bracket 20.

[0019] Optionally, the main body of the driving assembly 40 can be arranged on the frame bracket 20, and the driving end of the driving assembly 40 can be connected to the swing arm assembly 30; of course, it can also be that the main body of the driving assembly 40 is arranged on the swing arm assembly 30, and the driving end of the driving assembly 40 is connected to the frame bracket 20. No matter which driving method is adopted, as long as the driving of the frame bracket 20 can be realized to make the frame bracket 20 slide relative to the swing arm assembly 30, the specific method is not limited.

[0020] In the embodiment of the present application, the swing arm assembly 30 can rotate relative to the hinge bracket 10, the frame bracket 20 can move relative to the swing arm assembly 30, and the driving assembly 40 can drive the frame bracket 20 to move relative to the swing arm assembly 30 according to the rotation angle of the swing arm assembly 30 relative to the hinge bracket 10, so that the moving distance of the frame bracket 20 is adapted to the rotation angle of the swing arm assembly 30, so as to meet the requirements of the movement of the frame bracket 20 during the opening and closing process and improve the movement accuracy of the frame bracket 20.

[0021] Compared with the hinge mechanism in the related art, the hinge mechanism 01 in the embodiment of the present application can adjust the position of the frame bracket 20 according to the rotation angle of the swing arm assembly 30 relative to the hinge bracket 10 through the driving component 40, and at the same time control the movement amount related to the rotation angle through the driving component 40, so as to accurately control the movement distance and ensure the flatness of the display screen 03 during the unfolding or folding process.

[0022] In addition, the hinge mechanism 01 in the embodiment of the present application eliminates the bearing connection swing arm, thereby reducing the complexity of the structure and avoiding the situation where the bearing connection swing arm is separated from the hinge bracket 10 due to the small amount of bearing overlap in the folded state. In addition, by controlling the high-precision movement of the frame bracket 20, the problem of the display screen 03 being squeezed in the folded state can be effectively alleviated, and the crease effect of the display screen 03 in the unfolded state can be improved.

[0023] In order to obtain the rotation angle of the swing arm assembly 30 relative to the hinge bracket 10 , the hinge mechanism 01 may further include a detection assembly 50 , which is electrically connected to the drive assembly 40 and is used to detect the rotation angle of the swing arm assembly 30 relative to the hinge bracket 10 .

[0024] Optionally, the main body of the detection component 50 can be arranged on the hinge bracket 10, and the detection end of the detection component 50 can be used to detect the rotation angle of the swing arm assembly 30; of course, the main body of the detection component 50 can also be arranged on the swing arm assembly 30, and the detection end of the detection component 50 is used to detect the angle of the swing arm assembly 30 relative to the hinge bracket 10.

[0025] In addition, the detection component 50 and the driving component 40 may be electrically connected via a flexible printed circuit (FPC) so that signals can be stably transmitted via the flexible printed circuit.

[0026] In the embodiment of the present application, the rotation angle of the swing arm assembly 30 relative to the hinge bracket 10 can be detected by the detection component 50, and the detection result can be sent to the driving component 40, so that the driving component 40 can drive the frame bracket 20 to slide relative to the swing arm assembly 30 a distance corresponding to the rotation angle, thereby meeting the requirement for movement of the frame bracket 20 during the opening and closing process and improving the movement accuracy of the frame bracket 20.

[0027] In some embodiments, the driving assembly 40 may be disposed on the frame support 20 and be transmission-connected with the swing arm assembly 30 to drive the frame support 20 to move relative to the swing arm assembly 30. Specifically, after the driving assembly 40 is started, a force may be applied between the frame support 20 and the swing arm assembly 30 so that the frame support 20 and the swing arm assembly 30 can move relative to each other, thereby adjusting the relative position relationship between the frame support 20 and the hinge support 10.

[0028] Optionally, the main body part of the driving component 40 can be fixed to the frame bracket 20 by bolts, screws, etc., so as to ensure that the main body of the driving component 40 can form a community with the frame bracket 20 and ensure the installation stability of the driving component 40.

[0029] To achieve the transmission connection between the driving component 40 and the swing arm component 30, the driving component 40 can include a motor 41 and a gear 42. Among them, the motor 41 is arranged on the frame bracket 20 to ensure the installation stability of the driving component 40, and the gear 42 is sleeved on the output shaft of the motor 41. In this way, the motor 41 can drive the gear 42 to rotate.

[0030] Correspondingly, the swing arm component 30 is provided with a rack 311, and the rack 311 is in transmission connection with the gear 42. Based on this, during the rotation of the swing arm component 30 relative to the hinge bracket 10, the motor 41 can drive the gear 42 to rotate, so that the gear 42 moves along the extension direction of the rack 311. At the same time, the motor 41 and the frame bracket 20 will also move along the extension direction of the rack 311, so that the frame bracket 20 moves along the rack 311 and approaches or moves away from the hinge bracket 10. Furthermore, the corresponding frame is driven by the frame bracket 20 to move, so as to adjust the capacitive screen space of the electronic device, alleviate the problem that the display screen 03 fails due to extrusion, and the display screen 03 can also be driven by the frame to move to improve the crease effect of the display screen 03.

[0031] Optionally, the rack 311 can extend in a direction close to or away from the hinge bracket 10. Among them, when the hinge mechanism 01 is in the folded state, the rack 311 extends along the thickness direction of the hinge mechanism 01; when the hinge mechanism 01 is in the unfolded state, the rack 311 extends along the width direction of the hinge mechanism 01.

[0032] Of course, the motor 41 can also be arranged on the swing arm component 30. Correspondingly, the rack 311 is arranged on the frame bracket 20. In this way, the motor 41 drives the gear 42 to rotate, and the rotation of the gear 42 drives the rack 311 and the frame bracket 20 to move synchronously, so that the frame bracket 20 approaches or moves away from the hinge bracket 10.

[0033] In some other embodiments, the driving component 40 can further include a motor 41 and a screw rod 43. Among them, the motor 41 is arranged on the frame bracket 20 to ensure the installation stability of the driving component 40, and the screw rod 43 is connected to the output shaft of the motor 41. In this way, the motor 41 can drive the screw rod 43 to rotate.

[0034] In addition, the screw rod 43 is in screw connection with the swing arm assembly 30. Thus, during the rotation of the swing arm assembly 30 relative to the hinge bracket 10, the motor 41 drives the screw rod 43 to rotate. In the case of the screw fit between the screw rod 43 and the swing arm assembly 30, the screw rod 43 moves relative to the swing arm assembly 30 in the axial direction. At the same time, the motor 41 and the frame bracket 20 also move along the axial direction of the screw rod 43, so that the frame bracket 20 moves along the axial direction of the screw rod 43, causing the frame bracket 20 to approach or move away from the hinge bracket 10. Furthermore, the corresponding frame is driven to move by the frame bracket 20, so as to facilitate the adjustment of the capacitive screen space of the electronic device, alleviate the problem that the display screen 03 fails due to extrusion, and the display screen 03 can also be driven to move by the frame to improve the crease effect of the display screen 03.

[0035] It should be noted here that when the hinge mechanism 01 is in the folded state, the axial direction of the screw rod 43 extends along the thickness direction of the hinge mechanism 01; when the hinge mechanism 01 is in the unfolded state, the axial direction of the screw rod 43 extends along the width direction of the hinge mechanism 01.

[0036] Of course, the motor 41 can also be arranged on the swing arm assembly 30. Correspondingly, the screw rod 43 is in screw connection with the frame bracket 20. Thus, the motor 41 drives the screw rod 43 to rotate, and the rotation of the screw rod 43 drives the frame bracket 20 to move, so that the frame bracket 20 approaches or moves away from the hinge bracket 10.

[0037] Optionally, the screw rod 43 can be a lead screw, a screw rod, a worm, etc. In some more specific embodiments, the screw rod 43 can be a worm, and the motor and the screw rod can also be connected through a worm gear.

[0038] To realize the connection between the drive assembly 40 and the swing arm assembly 30, the swing arm assembly 30 can have a transmission bracket 32. One end of the transmission bracket 32 can be provided with a screw sleeve 321, and the screw sleeve 321 is in screw connection with the screw rod 43. Based on this, under the driving action of the motor 41, the screw rod 43 can rotate and move relative to the screw sleeve 321, so as to realize the approach or separation of the frame bracket 20 relative to the hinge bracket 10.

[0039] Among them, the swing arm assembly 30 can include a first swing arm 31. The first swing arm 31 is rotatably connected to the hinge bracket 10, and the transmission bracket 32 is in snap-fit connection with the first swing arm 31. Thus, the drive assembly 40 can be connected to the swing arm through the transmission bracket 32.

[0040] Optionally, the first swing arm 31 may be provided with a slot 312 on two opposite sides; accordingly, the transmission bracket 32 ​​may be provided with two spaced claws 322 at one end away from the spiral sleeve 321, and a bayonet 323 is formed between the two claws 322. The bayonet 323 is clamped in the portion between the slots 312 on both sides, and the two claws 322 are clamped in the corresponding slots 312. Based on this, the transmission bracket 32 ​​and the first swing arm 31 can be stably connected through the clamping fit between the claws 322 and the slots 312, and the assembly and disassembly are convenient.

[0041] Of course, in other embodiments, the transmission bracket 32 ​​can also be connected to the first swing arm 31 by other connection methods, such as screwing, riveting, bonding, clamping, etc.; or, the transmission bracket 32 ​​and the first swing arm 31 can also be an integrated structure.

[0042] In other embodiments, the swing arm assembly 30 may further include at least one second swing arm, which is rotatably connected to the hinge bracket 10 and slidably connected to the frame bracket 20. In this way, the cooperation between the at least one second swing arm and the first swing arm 31 can help improve the rigidity and sliding stability of the frame bracket 20. Of course, the first swing arm 31 and the at least one second swing arm may adopt an integrated structure.

[0043] In some embodiments, the hinge mechanism 01 may include two groups of swing arm assemblies 30, which are arranged at intervals along the axial direction of the hinge mechanism 01, and the two groups of swing arm assemblies 30 are respectively rotatably connected to the hinge bracket 10; accordingly, the hinge mechanism 01 may include two groups of frame brackets 20, and each group of swing arm assemblies 30 is movably connected to the corresponding frame bracket 20.

[0044] Furthermore, the driving assembly 40 is located between the two groups of swing arm assemblies 30. In this way, the driving assembly 40 can be respectively connected to the two groups of frame supports 20 and respectively connected to the two groups of swing arm assemblies 30 by transmission, so that the driving assembly 40 can be shared, which is beneficial to reduce structural complexity and ensure the synchronous movement of the two groups of frame supports 20.

[0045] Among them, the motor 41 can include two output shafts arranged axially opposite to each other, each output shaft is provided with a transmission member, and the transmission member is connected to the corresponding swing arm assembly 30 in transmission. In this way, the two output shafts of the same motor 41 can simultaneously drive the two transmission members to move relative to the swing arm assembly 30, so that the forces acting on the motor 41 and the frame bracket 20 can be more balanced, so as to prevent the two groups of frame brackets 20 from moving out of sync and causing the display screen 03 to be unevenly stressed and pulled.

[0046] Optionally, the transmission member can be a gear 42. Correspondingly, each frame bracket 20 can be provided with a rack 311, so that the gears 42 at the two output shafts of the motor 41 are respectively engaged with the racks 311 of the corresponding frame brackets 20, and act on both ends of the motor 41 and the frame bracket 20 respectively to improve the force balance.

[0047] The transmission member can also be a screw rod 43. The screw rods 43 at the two output shafts of the motor 41 are respectively connected to the corresponding frame in a spiral manner, and act on both ends of the motor 41 and the frame bracket 20 respectively to improve the force balance.

[0048] In some embodiments, the detection assembly 50 includes an angle sensor. The angle sensor is disposed on the hinge bracket 10, and the synchronous shaft can be connected to the detection end of the angle sensor. Based on this, when the swing arm assembly 30 rotates relative to the hinge bracket 10, the angle sensor can detect the rotation angle of the synchronous shaft, so as to obtain the rotation angle of the swing arm assembly 30 relative to the hinge bracket 10, which is beneficial to improving the rotation accuracy of the swing arm assembly 30, laying a foundation for adjusting the sliding distance between the frames, making the sliding distance more accurate, and being beneficial to improving the protection effect on the display screen 03.

[0049] It should be noted here that the rotation angle of the swing arm assembly 30 relative to the hinge bracket 10 can be accurately transmitted to the driving assembly 40 through the angle sensor, so that the driving assembly 40 can provide a rotation signal.

[0050] In some embodiments, the hinge mechanism 01 can further include a torque cam assembly 60. The torque cam assembly 60 is connected between the hinge bracket 10 and the swing arm assembly 30 and is used to provide torque for the swing arm assembly 30 to rotate relative to the hinge bracket 10.

[0051] Based on the above hinge mechanism 01, an embodiment of the present application also discloses an electronic device. The disclosed electronic device includes a first frame 021, a second frame 022, a display screen 03, and the above hinge mechanism 01. Among them, the first frame 021 and the second frame 022 are respectively connected to the corresponding frame brackets 20 in the hinge mechanism 01, and the display screen 03 is disposed on one side of the first frame 021 and the second frame 022. Optionally, the display screen 03 can be fixed to one side of the first frame 021 and the second frame 022 by means of adhesion. Optionally, the electronic device can be a mobile phone, a tablet computer, a notebook computer, an e-book, etc.

[0052] Based on the above settings, the first frame 021 and the second frame 022 can play a role in installing and fixing the display screen 03, and the first frame 021 and the second frame 022 are respectively connected to the hinge mechanism 01 and can also move.

[0053] Based on this, during the opening and closing of the hinge mechanism 01, the rotation angle of the swing arm assembly 30 relative to the hinge bracket 10 can be detected by the detection component 50, and the information is sent to the driving component 40 to adjust the sliding amount of the frame bracket 20 relative to the swing arm assembly 30 according to the rotation angle, so that the sliding amount of the frame bracket 20 can be accurately controlled. Thus, sufficient screen accommodation space can be provided for the display screen 03 during the folding process of the hinge mechanism 01, to alleviate the problem that the display screen 03 is squeezed and fails due to the contraction of the screen accommodation space during the folding process.

[0054] In some embodiments, the electronic device may further include an acceleration sensor, which is electrically connected to the driving component 40. When the acceleration sensor determines that the electronic device is in a falling state, the driving component 40 can drive the frame bracket 20 to move away from the hinge bracket 10, so as to increase the screen accommodation space between the first frame 021 and the second frame 022.

[0055] Specifically, in the case where the electronic device in the folded state falls, the acceleration sensor detects that the electronic device is in a free-fall state. At this time, the acceleration sensor sends control information to the driving component 40, so that the driving component 40 drives the first frame 021 and the second frame 022 to move away from the hinge bracket 10 respectively through the corresponding frame bracket 20, to resist the sliding of the first frame 021 and the second frame 022 during the folded state fall, ensuring that there is a sufficiently large screen accommodation space during the falling process, thus effectively solving the problem that the display screen 03 is squeezed and fails due to the reduction of the screen accommodation space during the falling process.

[0056] During the unfolding process of the electronic device, the driving component 40 can also receive a control signal, and drive the first frame 021 and the second frame 022 to move away from the hinge bracket 10 respectively through the corresponding frame bracket 20, so that the crease of the display screen 03 can be straightened by the first frame 021 and the second frame 022, greatly improving the crease effect of the display screen 03.

[0057] In summary, the embodiment of the present application optimizes the driving form of the hinge, and controls different sliding amounts of the frame bracket 20 by detecting different scenarios and feedbacking to the driving component 40, so as to drive the frame assembly to move through the driving component 40 to adapt to the opening and closing of the hinge mechanism 01, thus effectively alleviating the problem that the display screen 03 is squeezed and fails due to the fall of the electronic device, and the problem that the crease of the display screen 03 is obvious in the unfolded state. It should be noted here that the sliding amount of the frame bracket 20 can be controlled by detecting the rotation angle of the swing arm assembly 30, to improve the control accuracy, and the sliding amount can be adjusted arbitrarily without space limitation.

[0058] In the hinge mechanism 01 in the embodiment of the present application, the structure corresponding to the crank-slider mechanism is cancelled, and the virtual shaft method with bushing cooperation is no longer adopted, so that the problem of jamming of the virtual shaft method can be alleviated; moreover, during the rotation of the hinge mechanism 01, since the meshing amount between the hinge bracket 10 and the swing arm assembly 30 is 180°, there is no risk of disengagement, which is beneficial to reducing the thickness of the hinge mechanism 01, achieving a thinning effect of the hinge mechanism 01, reducing the structural complexity, and improving the assembly convenience; in addition, the groove of the door panel at the virtual structure position can be reduced, making the hinge mechanism 01 more flat, and improving the reliability of ball dropping.

[0059] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative rather than restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all belong to the protection scope of the present application.

Claims

1. A hinge mechanism, characterized in that, Comprising: A hinge bracket, a frame bracket, and a swing arm assembly. The frame bracket is rotatably connected to the hinge bracket through the swing arm assembly. One end of the swing arm assembly is rotatably connected to the hinge bracket through a synchronous shaft, and the other end of the swing arm assembly is movably connected to the frame bracket. Wherein, One of the swing arm assembly and the frame bracket is provided with a driving assembly, and the driving assembly is used to drive the frame bracket to move relative to the swing arm assembly according to the rotation angle of the swing arm assembly relative to the hinge bracket, and the moving distance of the frame bracket is related to the rotation angle.

2. The hinge mechanism according to claim 1, wherein, The hinge mechanism further includes a detection assembly, the detection assembly is electrically connected to the driving assembly, and the detection assembly is used to detect the rotation angle of the swing arm assembly relative to the hinge bracket.

3. The hinge mechanism according to claim 2, wherein, The driving assembly includes a motor and a gear. The motor is arranged on the frame bracket, and the gear is sleeved on the output shaft of the motor. The swing arm assembly is provided with a rack, and the rack is in transmission connection with the gear. During the rotation of the swing arm assembly relative to the hinge bracket, the motor drives the gear to rotate so that the frame bracket moves along the rack.

4. The hinge mechanism according to claim 2, characterized in that, The driving assembly includes a motor and a screw rod. The motor is arranged on the frame bracket, and the screw rod is connected to the output shaft of the motor. The screw rod is in screw connection with the swing arm assembly. During the rotation of the swing arm assembly relative to the hinge bracket, the motor drives the screw rod to rotate so that the frame bracket moves along the axis direction of the screw rod.

5. The hinge mechanism according to claim 4, characterized in that, The swing arm assembly includes a transmission bracket. One end of the transmission bracket is provided with a screw sleeve, and the screw sleeve is in screw connection with the screw rod.

6. The hinge mechanism according to claim 5, characterized in that, The swing arm assembly further includes a first swing arm rotatably connected to the hinge bracket. Two card slots are respectively arranged on the opposite sides of the first swing arm. Two claws are arranged at intervals at one end of the transmission bracket away from the screw sleeve. A bayonet is formed between the two claws, and the part of the bayonet clamped between the two card slots on both sides, and the two claws are respectively clamped in the corresponding card slots.

7. The hinge mechanism according to any one of claims 3 to 6, characterized in that, The hinge mechanism includes two groups of the swing arm assemblies arranged at intervals along the axis of the hinge mechanism. The two groups of the swing arm assemblies are respectively rotatably connected to the hinge bracket, and the driving assembly is located between the two groups of the swing arm assemblies. The motor includes two output shafts arranged opposite to each other along the axis. Each output shaft is provided with a transmission member, and the transmission member is in transmission connection with the corresponding swing arm assembly. Wherein, the transmission member is a gear or a screw rod.

8. The hinge mechanism according to claim 2, wherein The detection assembly includes an angle sensor. The angle sensor is arranged on the hinge bracket, and the synchronous shaft is connected to the detection end of the angle sensor.

9. An electronic device, characterized in that, Comprising: A first frame, a second frame, a display screen, and the hinge mechanism according to any one of claims 1 to 8. The first frame and the second frame are respectively connected to the corresponding frame brackets in the hinge mechanism. The display screen is arranged on one side of the first frame and the second frame.

10. The electronic device according to claim 9, wherein The electronic device further includes an acceleration sensor, and the acceleration sensor is electrically connected to the driving assembly. When the acceleration sensor determines that the electronic device is in a falling state, the driving component drives the frame bracket to move away from the hinge bracket, so as to increase the screen-containing space between the first frame and the second frame.

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