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 first swing arm assembly, a second swing arm assembly, a frame support and a door plate. The first swing arm assembly is rotationally connected with the hinge support, and the first swing arm assembly is slidably connected with the frame support. The second swing arm assembly is rotationally connected with the hinge support. The door plate is in sliding connection with the first swing arm assembly through a first protrusion and a first sliding groove which are matched with each other, the door plate is in rotating connection with the second swing arm assembly through a rotating shaft, and the door plate is in sliding connection with the frame body support through a second protrusion and a second sliding groove which are matched with each other. The hinge can solve at least one of the problems that the movement track of the door plate is unstable, supporting is not good, and the middle part of the hinge is prone to moving.

Description

Technical Field

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

[0002] Foldable screen mobile phones are popular among consumers for their foldable and portable advantages. Among them, foldable screen mobile phones are mainly composed of display screen, frame and hinge, and the opening and closing of the screen can be achieved by hinge.

[0003] Some hinges in related technologies mainly include fixed middle plate, virtual swing arm, pressure cover, synchronous gear, gear shaft, virtual swing arm, virtual pin, synchronous swing arm, frame fixing bracket, door panel, door panel pin, etc. The left and right display screens are fixed on the frame, and the hinge is fixed to the frame through the frame fixing bracket. The frame fixing bracket is driven to rotate by the relative rotation of the left and right frames; the synchronous swing arm is installed in the frame fixing bracket slide slot and moves along the frame fixing bracket slot; when the frame fixing bracket rotates, the synchronous swing arm is driven to rotate around the gear shaft, and the synchronous swing of the left and right synchronous swing arms is realized through a set of gears; the frame fixing bracket is connected to the virtual swing arm through a virtual pin, and when the fixed bracket rotates, the virtual swing arm rotates along the virtual axis.

[0004] Based on the above settings, a crank slider mechanism is formed by a virtual swing arm, a synchronous swing arm, and a fixed bracket to achieve the change of the opening and closing angle of the display screen from 0° to 180°. The door panel is connected to the frame fixed bracket through the door panel pin, and is assembled in the synchronous swing arm slot and moves along the synchronous swing arm slot; the door panel plays a role in supporting the screen to prevent collapse. When closed, the door panel moves through the synchronous swing arm upper slot to prevent squeezing the screen.

[0005] However, in the above-mentioned hinge, the door panel driving mechanism is outside the hinge opening and closing motion chain, which causes the door panel movement trajectory to be unstable and the door panel's support is poor, which easily leads to poor creases in the flexible screen. In addition, there are many moving pairs between the components in the hinge, which causes the components to move easily and has poor reliability. Summary of the invention

[0006] The purpose of the embodiments of the present application is to provide a hinge mechanism and an electronic device that can solve at least one of the problems of unstable movement trajectory of the door panel, poor support, and easy movement of part of the hinge.

[0007] In order to solve the above technical problems, this application is implemented as follows: The embodiment of the present application provides a hinge mechanism, comprising: a hinge bracket, a first swing arm assembly, a second swing arm assembly, a frame bracket and a door panel; The first swing arm assembly is rotatably connected to the hinge bracket, and the first swing arm assembly is slidably connected to the frame bracket; The second swing arm assembly is rotatably connected to the hinge bracket; The door panel and the first swing arm assembly are slidably connected via a matching first protrusion and a first slide groove, the door panel and the second swing arm assembly are rotationally connected via a rotating shaft, and the door panel and the frame bracket are slidably connected via a matching second protrusion and a second slide groove.

[0008] An embodiment of the present application also provides an electronic device, comprising the above-mentioned hinge mechanism.

[0009] The hinge mechanism in the embodiment of the present application is rotatably connected between the door panel and the second swing arm assembly through a rotating shaft, so that the movement of the door panel is added to the opening and closing motion chain of the hinge mechanism, so that the movement trajectory of the door panel is more stable, and it is also beneficial to reduce the rotation angle of the second swing arm assembly relative to the hinge bracket; the sliding cooperation between the first swing arm assembly and the door panel is improved by the first protrusion and the first slide groove, so as to improve the supporting stability of the door panel and improve the crease effect of the flexible screen; in addition, the door panel, the first swing arm assembly, the second swing arm assembly and the frame bracket together constitute a four-bar linkage mechanism to ensure the stability and smoothness of the unfolding or folding process of the hinge mechanism, and effectively prevent the movement between the various parts of the hinge mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the assembly of the hinge mechanism disclosed in the embodiment of the present application; Figure 2 A disassembly diagram of the hinge mechanism disclosed in the embodiment of the present application; Figure 3 A partial schematic diagram of the hinge mechanism disclosed in the embodiment of the present application; Figure 4 A cross-sectional view of a door panel and a first swing arm assembly disclosed in an embodiment of the present application being slidably connected via a first protrusion and a first slide groove; Figure 5 A cross-sectional view showing that the door panel and the second swing arm assembly disclosed in the embodiment of the present application are rotatably connected via a rotating shaft, and the door panel and the frame bracket are slidably connected via a second protrusion and a second sliding groove; Figure 6 This is a cross-sectional view of the first swing arm assembly and the frame bracket disclosed in the embodiment of the present application, which are slidably connected through a slide table and a third slide groove.

[0011] Description of reference numerals: 01-Hinge mechanism; 10-hinge bracket; 11-bearing bush concave surface; 20-first swing arm assembly; 21-first swing arm; 22-first protrusion; 23-slide table; 30-second swing arm assembly; 31-second swing arm; 311-first connecting ear; 312-bearing bush convex surface; 32-rotating shaft; 40-frame support; 41-second slide groove; 42-rubber plug; 43-third slide groove; 50-door panel; 50a-first panel surface; 50b-second panel surface; 51-first slide groove; 52-second protrusion; 53-second connecting ear; 54-third protrusion; 60-damping assembly; 61-damping member; 62-elastic member; 63-clamping member; 70-synchronizing assembly; 71-synchronizing gear; 72-synchronizing shaft; 02-Display screen. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0013] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0014] The embodiments of the present application are described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0015] refer to Figures 1 to 6 The embodiment of the present application discloses a hinge mechanism 01, which can be applied to an electronic device to enable the electronic device to be unfolded or folded, wherein the electronic device can be a mobile phone, a tablet computer, an e-book, etc. The disclosed hinge mechanism 01 includes a hinge bracket 10, a first swing arm assembly 20, a second swing arm assembly 30, a frame bracket 40 and a door panel 50.

[0016] The hinge bracket 10 is a mechanism component, which can provide a bearing foundation for components such as the first swing arm assembly 20, the second swing arm assembly 30, the frame bracket 40, and the door panel 50. The first swing arm assembly 20 is rotationally connected to the hinge bracket 10, so that the first swing arm assembly 20 can rotate relative to the hinge bracket 10 to achieve the folding or unfolding of the hinge mechanism 01. Optionally, the first swing arm assembly 20 and the hinge bracket 10 can be rotationally connected through an axis. Of course, other rotational connection methods can also be used, which are not specifically limited here.

[0017] The frame bracket 40 is used to connect with the frame of the electronic device. The frame may include a first frame unit and a second frame unit, and the first frame unit and the second frame unit are respectively connected to the corresponding frame bracket 40. In addition, the frame bracket 40 can move relative to the hinge bracket 10 to achieve relative rotation of the first frame unit and the second frame unit, thereby achieving folding or unfolding of the electronic device. The first swing arm assembly 20 is slidably connected to the frame bracket 40. In this way, when the first swing arm assembly 20 rotates relative to the hinge bracket 10, and the frame bracket 40 moves relative to the hinge bracket 10, the relative sliding between the first swing arm assembly 20 and the frame bracket 40 avoids motion interference problems, thereby ensuring the smoothness of the respective movements of the first swing arm assembly 20 and the frame bracket 40.

[0018] The second swing arm assembly 30 is rotatably connected to the hinge bracket 10 so as to enable the second swing arm assembly 30 to rotate relative to the hinge bracket 10 during the folding or unfolding of the hinge mechanism 01 .

[0019] The door panel 50 is used to connect with the display screen 02 of the electronic device. Optionally, the display screen 02 can be connected with two door panels 50 respectively, so that when the hinge bracket 10 is folded or unfolded, the display screen 02 is driven to fold or unfold through the door panels 50.

[0020] Among them, the door panel 50 and the first swing arm assembly 20 are slidably connected through the matching first protrusion 22 and the first slide groove 51. In this way, during the folding or unfolding of the hinge mechanism 01, the relative sliding between the first protrusion 22 and the first slide groove 51 can ensure the movement of the door panel 50 and the first swing arm assembly 20 relative to the hinge bracket 10, thereby effectively preventing movement interference between the structures.

[0021] The door panel 50 and the second swing arm assembly 30 are rotationally connected via the rotating shaft 313. Thus, during the folding or unfolding of the hinge mechanism 01, the door panel 50 and the second swing arm assembly 30 can rotate relative to each other to prevent motion interference between the structures.

[0022] The door panel 50 and the frame bracket 40 are slidably connected via the matching second protrusion 52 and the second slide groove 41. Thus, during the folding or unfolding of the hinge mechanism 01, the relative sliding between the second protrusion 52 and the second slide groove 41 can ensure that the door panel 50 and the frame bracket 40 move relative to the hinge bracket 10, thereby effectively preventing movement interference between the structures.

[0023] In the hinge mechanism 01 in the embodiment of the present application, the door panel 50 and the second swing arm assembly 30 are rotatably connected via the rotating shaft 313, so that the movement of the door panel 50 is added to the opening and closing motion chain of the hinge mechanism 01, so that the motion trajectory of the door panel 50 is more stable, and it is also beneficial to reduce the rotation angle of the second swing arm assembly 30 relative to the hinge bracket 10; the first swing arm assembly 20 and the door panel 50 are matched by the sliding cooperation between the first protrusion 22 and the first slide groove 51, so as to improve the supporting stability of the door panel 50 and improve the crease effect of the flexible screen; in addition, the door panel 50, the first swing arm assembly 20, the second swing arm assembly 30 and the frame bracket 40 together constitute a four-bar linkage to ensure the stability and smoothness of the unfolding or folding process of the hinge mechanism 01, and effectively prevent the movement between the various parts of the hinge mechanism 01.

[0024] The first protrusion 22 can be provided on the first swing arm assembly 20, and the first slide groove 51 can be provided on the door panel 50, so as to realize the relative sliding of the first swing arm assembly 20 and the door panel 50 during the folding or unfolding of the hinge mechanism 01, and prevent the motion interference. Of course, the first protrusion 22 can also be provided on the door panel 50, and correspondingly, the first slide groove 51 can be provided on the first swing arm assembly 20, and the relative sliding of the first swing arm assembly 20 and the door panel 50 can also be realized by the sliding cooperation between the first protrusion 22 and the first slide groove 51.

[0025] In some more specific embodiments, the door panel 50 may include a first panel 50a and a second panel 50b disposed opposite to each other. The first panel 50a may be disposed opposite to the display screen 02 of the electronic device so as to be connected to the display screen 02; the second panel 50b may be provided with a third protrusion 54, which extends in a direction away from the second panel, and the first slide groove 51 is disposed on the side of the third protrusion 54 along the axial direction of the hinge mechanism 01, and extends along the extension direction of the third protrusion 54.

[0026] In an embodiment of the present application, the third protrusion 54 can be arranged on the side of the first swing arm assembly 20 along the axial direction of the hinge mechanism 01. This arrangement can effectively reduce the thickness or width of the hinge mechanism 01, thereby facilitating reducing the thickness and width of the electronic device.

[0027] Optionally, the first protrusion 22 may be a structure such as a convex column, a boss, a convex block, etc. Of course, it may also be in other forms, which are not specifically limited here. The first slide groove 51 may be a blind groove (i.e., a groove with a groove bottom) or a through groove (i.e., a groove without a groove bottom), which may be selected according to actual working conditions.

[0028] Considering that the first swing arm assembly 20 is rotatably connected to the hinge bracket 10, the door panel 50 is rotatably connected through the second swing arm assembly 30, and the second swing arm assembly 30 is rotatably connected to the hinge bracket 10, in order to avoid motion interference between the first swing arm assembly 20 and the door panel 50, in the embodiment of the present application, the first sliding groove 51 can be a first arc groove, and the first protrusion 22 is slidably connected to the first arc groove to facilitate sliding along the arc in the first arc groove, thereby ensuring the smoothness of the movement between the first swing arm assembly 20 and the door panel 50 and ensuring the normal use of the hinge mechanism 01.

[0029] Exemplarily, the first arc groove may be a circular arc groove. Of course, it may also be an arc groove in other forms, as long as it can accommodate the relative movement between the first swing arm assembly 20 and the door panel 50 , and the specific form is not limited.

[0030] In some embodiments, the first swing arm assembly 20 may include at least two first swing arms 21, and at least two first swing arms 21 are rotatably connected to opposite sides of the hinge bracket 10. Optionally, the first swing arm assembly 20 may include two first swing arms 21, and each side of the hinge bracket 10 is rotatably connected to one first swing arm 21; the first swing arm assembly 20 may also include four first swing arms 21, and each side of the hinge bracket 10 is rotatably connected to two first swing arms 21, and the two first swing arms 21 on the same side are arranged at intervals along the axial direction of the hinge mechanism 01. In addition, the first swing arm assembly 20 may also include other numbers of first swing arms 21, which can be set according to actual working conditions.

[0031] The first protrusion 22 can be provided on the side of the first swing arm 21 along the axial direction of the hinge mechanism 01, and can be slidably connected with the first arc groove. Based on this, the first protrusion 22 can be matched and installed with the first arc groove in the axial direction of the hinge mechanism 01, so that the thickness or width of the hinge mechanism 01 can be reduced, which is conducive to reducing the volume of the entire electronic device.

[0032] In some more specific embodiments, the first swing arm assembly 20 may include two first swing arms 21 rotatably connected to one side of the hinge bracket 10 and two second swing arms 31 rotatably connected to the other side of the hinge bracket 10, and the two first swing arms 21 located on the same side are arranged at intervals along the axial direction of the hinge mechanism 01.

[0033] The third protrusion 54 is arranged between the two first swing arms 21 on the same side. The third protrusion 54 is provided with first sliding grooves 51 on both sides of the axial direction of the hinge mechanism 01. The two first swing arms 21 on the same side are slidingly connected with the corresponding first sliding grooves 51 through their respective first protrusions 22.

[0034] Based on the above arrangement, the two first swing arms 21 on the same side are respectively slidably connected to the third protrusions 54 , which can ensure the reliability of the connection on the one hand and the smoothness of the sliding on the other hand.

[0035] In some embodiments, the door panel 50 may include a first panel 50a and a second panel 50b disposed opposite to each other. The first panel 50a is used to be disposed opposite to the display screen 02 of the electronic device and may be connected to the display screen 02; the second panel 50b may be provided with a second protrusion 52, and accordingly, the frame support 40 may be provided with a second slide groove 41. Based on this arrangement, the sliding fit between the second protrusion 52 and the second slide groove 41 may be achieved, further ensuring the relative movement between the door panel 50 and the frame support 40 to prevent movement interference.

[0036] Optionally, the second protrusion 52 may be a convex block, a boss or a convex column, etc. Of course, it may also be in other forms, which are not specifically limited here. In addition, the second slide groove 41 may be a blind groove (i.e., a groove with a groove bottom) or a through groove (i.e., a groove without a groove bottom), which may be selected according to actual working conditions.

[0037] In some more specific embodiments, the second protrusion 52 may be an arc-shaped protrusion, and correspondingly, the second slide groove 41 may be a second arc-shaped groove, and the arc-shaped protrusion is slidably connected to the second arc-shaped groove, so that the arc-shaped protrusion can slide along the arc in the second arc-shaped groove, thereby ensuring the smoothness of movement between the frame bracket 40 and the door panel 50 and ensuring the normal use of the hinge mechanism 01. Exemplarily, the second arc-shaped groove may be a circular arc-shaped groove, and of course, it may be in other forms, which are not specifically limited here.

[0038] In other embodiments, the second protrusion 52 can also be provided on the frame bracket 40, and correspondingly, the second slide groove 41 can be provided on the door panel 50. This method can also ensure the smoothness of the movement between the door panel 50 and the frame bracket 40 through the sliding cooperation between the second protrusion 52 and the second slide groove 41, thereby ensuring the normal use of the hinge mechanism 01.

[0039] In some embodiments, the second slide groove 41 may be a through slide groove, the second protrusion 52 is inserted into the through slide groove from the notch of the through slide groove facing the door panel 50, and a rubber plug 42 may be provided at the notch of the through slide groove facing away from the door panel 50. Based on this arrangement, the rubber plug 42 can play a certain role in limiting and guiding the second protrusion 52, so as to ensure that the second protrusion 52 can slide in the second slide groove 41 according to a preset track.

[0040] It should be noted here that, in order to facilitate the installation of the second protrusion 52 into the second slide groove 41, the cross-sectional area of ​​the second slide groove 41 perpendicular to the sliding direction can be larger than the cross-sectional area of ​​the second protrusion 52, so that there can be a certain gap between the side wall of the second protrusion 52 and the side wall of the second slide groove 41, thereby facilitating the installation of the second protrusion 52 into the second slide groove 41.

[0041] However, due to the existence of the gap, the second protrusion 52 is prone to shaking in the second slide groove 41, which may cause collisions between components and cause damage, and may also increase problems such as abnormal noise, affecting user experience.

[0042] Based on the above situation, in the embodiment of the present application, after the second protrusion 52 is installed in the second slide groove 41, the rubber plug 42 is installed in the groove of the second slide groove 41 away from the door panel 50, so that the side wall of the second protrusion 52 can be in contact with the rubber plug 42 and be limited and guided by the rubber plug 42, thereby effectively preventing the second protrusion 52 from shaking in the second slide groove 41, and avoiding the second protrusion 52 from colliding with the side wall of the second slide groove 41 to cause damage to components, increase abnormal noise, etc. Exemplarily, the rubber plug 42 can be installed at the notch of the second slide groove 41 by welding, bonding, clamping, etc. to ensure the stability of the installation of the rubber plug 42.

[0043] In some embodiments, the second swing arm assembly 30 may include at least two second swing arms 31, and at least two second swing arms 31 are rotatably connected to the opposite sides of the hinge bracket 10 through the matching concave bearing surface 11 and the convex bearing surface 312. Optionally, the second swing arm assembly 30 may include two second swing arms 31, and each side of the hinge bracket 10 is rotatably connected to a second swing arm 31 through the matching concave bearing surface 11 and the convex bearing surface 312; the second swing arm assembly 30 may also include four second swing arms 31, and each side of the hinge bracket 10 is rotatably connected to two second swing arms 31 through the matching concave bearing surface 11 and the convex bearing surface 312, and the two second swing arms 31 on the same side are arranged at intervals along the axial direction of the hinge mechanism 01. In addition, the second swing arm assembly 30 may also include other numbers of second swing arms 31, which can be set according to actual working conditions.

[0044] In addition, the end of the second swing arm 31 away from the hinge bracket 10 may be provided with a first connecting ear 311, and correspondingly, the door panel 50 may be provided with a second connecting ear 53, and the second connecting ear 53 is rotatably connected to the first connecting ear 311 via a rotating shaft 313. Based on this arrangement, the smooth rotation between the second swing arm 31 and the door panel 50 can be ensured.

[0045] In order to realize the sliding connection between the first swing arm assembly 20 and the frame support 40, the first swing arm 21 may be provided with a slide 23, and accordingly, the frame support 40 may be provided with a third slide groove 43, and the slide 23 is slidably connected to the third slide groove 43. Based on this arrangement, the reliability of the sliding between the first swing arm 21 and the frame support 40 can be ensured, and the motion interference between the first swing arm 21 and the frame support 40 can be prevented.

[0046] In some embodiments, the hinge mechanism 01 may further include a synchronization component 70, which includes two meshing synchronization gears 71, and the two synchronization gears are rotatably connected to the hinge bracket 10; in addition, the first swing arm 21 may be provided with a tooth structure, and the first swing arms 21 located on both sides of the hinge bracket 10 are respectively connected to the hinge bracket 10 through synchronization shafts 72, and the tooth structures of the first swing arms 21 on both sides are respectively meshed with the two synchronization gears 71. Based on this arrangement, it can be ensured that the first swing arms 21 located on both sides of the hinge bracket 10 rotate synchronously.

[0047] In addition, the hinge mechanism 01 can also include a damping assembly 60, which includes an elastic member 62, a damping member 61 and a clip 63. The damping member 61 is slidably connected to the synchronous shaft 72, the clip 63 is connected to the synchronous shaft 72, and the elastic member 62 elastically connects the damping member 61 and the clip 63; the damping member 61 is provided with a first cam portion, the first swing arm 21 is provided with a second cam portion, and the second cam portion cooperates with the first cam portion. In this way, under the elastic force of the elastic member 62, the first cam portion and the second cam portion can be pressed against each other, thereby playing a damping role in the rotation of the first swing arm 21 relative to the hinge bracket 10.

[0048] Based on the above-mentioned hinge mechanism 01 , an embodiment of the present application further discloses an electronic device, and the disclosed electronic device includes the above-mentioned hinge mechanism 01 .

[0049] To sum up, in the embodiment of the present application, the frame bracket 40 and the first swing arm 21 can slide relative to each other through the sliding cooperation of the slide 23 and the third slide groove 43, and the frame bracket 40 and the door panel 50 can slide relative to each other through the sliding cooperation of the second protrusion 52 and the second slide groove 41. Based on this, during the folding or unfolding process of the hinge mechanism 01, the frame bracket 40 can not only rotate relative to the hinge bracket 10, but also move relative to the hinge bracket 10, so as to avoid motion interference and ensure the normal use of the hinge mechanism 01.

[0050] Furthermore, the door panel 50 and the second swing arm 31 are connected via a rotating shaft 313, so that the door panel 50 can rotate at a larger angle during the unfolding or folding of the hinge mechanism 01, thereby allowing the door panel 50 to avoid the water drop structure formed after the display screen 02 is bent to a greater extent. In addition, the rotation angle of the second swing arm 31 relative to the hinge bracket 10 can be reduced, which is beneficial to increase the bearing overlap between the second swing arm 31 and the hinge bracket 10.

[0051] The first swing arm 21 and the door panel 50 are slidably matched with each other through the first protrusion 22 and the first sliding groove 51, which can help improve the structural stability.

[0052] The synchronization component 70 can realize the synchronization of the rotation of the left and right bodies of the electronic device, and the damping component 60 can provide a damping force to resist the rebound force when the display screen 02 is folded, thereby realizing the hovering and closing functions.

[0053] Therefore, the hinge mechanism 01 in the embodiment of the present application has the following technical advantages: The crease effect is good: the movement of the door panel 50 is integrated into the opening and closing movement chain of the hinge mechanism 01, and the door panel 50 is connected to the second swing arm 31 through the rotating shaft 313 to achieve an integrated design, so that the flatness of the hinge mechanism 01 is better, and better rigid support can be provided for the display screen 02; the gap between the door panel 50 and the display screen 02 can be reduced to 0-0.05mm, which is beneficial to reduce the creep deformation of the display screen 02 and strengthen the support for the display screen 02; the number of holes in the unfolded state of the hinge mechanism 01 is reduced, which is beneficial to improve the flatness of the door panel 50; the rotation angle of the second swing arm 31 is reduced, and the water droplet diameter of the display screen 02 can be increased by about 30%, which increases the screen space and reduces the squeezing force of the hinge mechanism 01 on the display screen 02 in the folded state. Therefore, the movement trajectory of the hinge when folding or unfolding can be made more stable, which is beneficial to reducing the gap between the door panel 50 and the display screen 02 and optimizing the crease. It is also beneficial to reduce the matching gap between the door panel 50 and the hinge bracket 10, making the gap of the hinge mechanism 01 smaller and the flatness higher, which is beneficial to optimizing the crease.

[0054] Good reliability: an integrated complete hinge bracket 10 is adopted to increase the reliability and support of the hinge mechanism 01; the door panel 50 and the first swing arm 21 are limited by the first protrusion 22 and the first slide groove 51, which provides better support and effectively alleviates the problem of damage to the display screen 02 caused by the movement of the hinge mechanism 01 during the falling process; the door panel 50 and the second swing arm 31 are designed as one body, and multiple groups of second swing arms 31 are added in the effective space to support the frame bracket 40, which effectively alleviates the problem of damage to the display screen 02 caused by the movement of the hinge mechanism 01 during the screw stacking process.

[0055] Good engineering assembly performance: the door panel 50 and the second swing arm 31 are designed as an integral whole. The door panel 50 directly slides with the first protrusion 22 and the first slide groove 51, and slides with the second protrusion 52 and the second slide groove 41. This can reduce the number of moving pairs and parts, thereby making the structure of the hinge mechanism 01 simpler and the cost lower.

[0056] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A hinge mechanism, characterized in that: include: A hinge bracket (10), a first swing arm assembly (20), a second swing arm assembly (30), a frame bracket (40) and a door panel (50); The first swing arm assembly (20) is rotatably connected to the hinge bracket (10), and the first swing arm assembly (20) is slidably connected to the frame bracket (40); The second swing arm assembly (30) is rotatably connected to the hinge bracket (10); The door panel (50) and the first swing arm assembly (20) are slidably connected via a matching first protrusion (22) and a first slide groove (51); the door panel (50) and the second swing arm assembly (30) are rotationally connected via a rotating shaft (32); and the door panel (50) and the frame bracket (40) are slidably connected via a matching second protrusion (52) and a second slide groove (41).

2. The hinge mechanism according to claim 1, characterized in that: The door panel (50) comprises a first panel surface (50a) and a second panel surface (50b) which are arranged opposite to each other; The second plate surface (50b) is provided with a third protrusion (54), the third protrusion (54) extending in a direction away from the second plate surface (50b), and the first sliding groove (51) is provided on a side portion of the third protrusion (54) along the axial direction of the hinge mechanism (01), and extends along an extension direction of the third protrusion (54); The first swing arm assembly (20) is provided with the first protrusion (22).

3. The hinge mechanism according to claim 2, characterized in that: The first sliding groove (51) is a first arc-shaped groove; The first swing arm assembly (20) comprises at least two first swing arms (21), the at least two first swing arms (21) being rotatably connected to opposite sides of the hinge bracket (10), the first protrusion (22) being arranged on the side of the first swing arm (21) along the axial direction of the hinge mechanism (01) and being slidably connected to the first arc-shaped groove.

4. The hinge mechanism according to claim 1, characterized in that: The door panel (50) comprises a first panel surface (50a) and a second panel surface (50b) which are arranged opposite to each other; The second plate surface (50b) is provided with the second protrusion (52); The frame support (40) is provided with the second sliding groove (41).

5. The hinge mechanism according to claim 4, characterized in that: The second protrusion (52) is an arc-shaped protrusion, the second sliding groove (41) is a second arc-shaped groove, and the arc-shaped protrusion is slidably connected to the second arc-shaped groove.

6. The hinge mechanism according to claim 1, 4 or 5, characterized in that: The second slide groove (41) is a through slide groove, and the second protrusion (52) is inserted into the through slide groove from a notch of the through slide groove facing the door panel (50); A rubber plug (42) is provided at the notch of the through slide groove on the side facing away from the door panel (50).

7. The hinge mechanism according to claim 1, characterized in that: The second swing arm assembly (30) comprises at least two second swing arms (31), and the at least two second swing arms (31) are rotatably connected to opposite sides of the hinge bracket (10) via matching bearing bush concave surfaces (11) and bearing bush convex surfaces (312); A first connecting ear (311) is provided at one end of the second swing arm (31) away from the hinge bracket (10), and the door panel (50) is provided with a second connecting ear (53), and the second connecting ear (53) is rotatably connected to the first connecting ear (311) via the rotating shaft (32).

8. The hinge mechanism according to claim 2 or 3, characterized in that: The first swing arm assembly (20) comprises two first swing arms (21) rotatably connected to one side of the hinge bracket (10) and two first swing arms (21) rotatably connected to the other side of the hinge bracket (10), and the two first swing arms (21) located on the same side are arranged at intervals along the axial direction of the hinge mechanism (01); The third protrusion (54) is arranged between two first swing arms (21) on the same side, and the first sliding grooves (51) are respectively arranged on both sides of the third protrusion (54) along the axial direction of the hinge mechanism (01); The two first swing arms (21) located on the same side are slidably connected to corresponding first sliding grooves (51) via the first protrusions (22) respectively provided thereon.

9. The hinge mechanism according to claim 3, characterized in that: The first swing arm (21) is provided with a slide table (23), the frame support (40) is provided with a third slide groove (43), and the slide table (23) is slidably connected to the third slide groove (43).

10. An electronic device, characterized in that: Comprising the hinge mechanism (01) as claimed in any one of claims 1 to 9.

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