Hinge mechanism and electronic device

Abstract

The invention discloses a hinge mechanism and electronic equipment, and relates to the field of electronic equipment. A hinge mechanism comprises a hinge support, a frame support, a first swing arm assembly, a second swing arm assembly and a buffer assembly. The frame body support is movably connected with the hinge support through the first swing arm assembly and the second swing arm assembly. The buffer assembly comprises a first connecting piece, a second connecting piece and a buffer medium, the first connecting piece is rotatably arranged on the hinge support, the second connecting piece is arranged on the frame support, the first connecting piece is movably connected with the second connecting piece, and the buffer medium is arranged on the frame support. The buffering medium is arranged between the first connecting piece and the second connecting piece and used for providing movement damping between the first connecting piece and the second connecting piece for buffering under the condition that the frame body support moves relative to the hinge support. The problem that a hinge mechanism is stuck can be solved.

Description

Technical Field

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

[0002] With the continuous development of folding screen technology, the market demand for electronic devices with folding screens continues to increase, among which the hinge mechanism is a more critical mechanism in folding screen electronic devices.

[0003] The hinge mechanism includes a hinge frame, a synchronous swing arm, a virtual swing arm, a frame fixing frame and other structures. Among them, the synchronous swing arm and the virtual swing arm are both rotatably connected to the hinge frame, the synchronous swing arm is slidably connected to the frame fixing frame, and the virtual swing arm is rotatably connected to the frame fixing frame.

[0004] When the electronic device falls, the hinge mechanism will be impacted, causing relative movement between the frame fixing frame and the hinge frame, which will impact the swing arm structure connected between the frame fixing frame and the hinge frame, causing deformation of the weak area where the swing arm structure is connected to the hinge frame, causing the hinge mechanism to get stuck, affecting the normal use of the hinge mechanism. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide a hinge mechanism and an electronic device that can solve problems such as the hinge mechanism getting stuck.

[0006] In order to solve the above technical problems, this application is implemented as follows: The embodiment of the present application provides a hinge mechanism, including: a hinge bracket, a frame bracket, a first swing arm assembly, a second swing arm assembly and a buffer assembly; The frame bracket is movably connected to the hinge bracket through the first swing arm assembly and the second swing arm assembly; The buffer assembly includes a first connecting member, a second connecting member and a buffer medium. The first connecting member is rotatably disposed on the hinge bracket, the second connecting member is disposed on the frame bracket, the first connecting member and the second connecting member are movably connected, and the buffer medium is disposed between the first connecting member and the second connecting member for providing movement damping between the first connecting member and the second connecting member for buffering when the frame bracket moves relative to the hinge bracket.

[0007] An embodiment of the present application also provides an electronic device, comprising the above-mentioned hinge mechanism.

[0008] In the embodiment of the present application, the frame bracket and the hinge bracket can be movably connected through the first swing arm assembly and the second swing arm assembly to ensure that the frame bracket can move relative to the hinge bracket, thereby realizing the expansion or folding of the hinge mechanism; by setting up a buffer assembly, a buffering effect can be played between the frame bracket and the hinge bracket. In this way, when the hinge mechanism is impacted, the buffer medium can provide movement damping between the first connecting member and the second connecting member to consume part of the impact energy, and play a buffering effect between the frame bracket and the hinge bracket to reduce the impact energy borne by at least one of the first swing arm assembly and the second swing arm assembly, thereby effectively alleviating the problem of the hinge mechanism being stuck due to deformation of the connection between at least one of the first swing arm assembly and the second swing arm assembly and the hinge bracket due to the impact, thereby ensuring the normal use of the hinge mechanism; in addition, the relative movement of the first connecting member and the second connecting member can also adapt to the expansion or folding of the hinge mechanism to avoid motion interference that affects the normal use of the hinge mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a first assembly schematic diagram of the hinge mechanism disclosed in the embodiment of the present application in an unfolded state; Figure 2 A second assembly schematic diagram of the hinge mechanism disclosed in the embodiment of the present application in an unfolded state; Figure 3 It is a cross-sectional schematic diagram of the hinge mechanism disclosed in the embodiment of the present application in an unfolded state; Figure 4 A first assembly schematic diagram of the hinge mechanism disclosed in an embodiment of the present application in a folded state; Figure 5 A second assembly schematic diagram of the hinge mechanism disclosed in the embodiment of the present application in a folded state; Figure 6 It is a cross-sectional schematic diagram of the hinge mechanism disclosed in the embodiment of the present application in a folded state; Figure 7 A disassembly diagram of the hinge mechanism disclosed in the embodiment of the present application; Figure 8 It is a partial schematic diagram of the hinge mechanism disclosed in the embodiment of the present application at the buffer assembly.

[0010] Description of reference numerals: 10-Hinged bracket; 20-frame support; 21-second rotating shaft; 30-first swing arm assembly; 31-first swing arm; 311-first cam portion; 32-first rotating shaft; 33-synchronizing gear; 40-second swing arm assembly; 41-second swing arm; 50-buffer assembly; 51-first connecting member; 511-rotating arm; 512-moving rod; 5121-piston part; 52- second connecting member; 521- cavity; 522- opening; 53- buffer medium; 54-seal; 60 - damping assembly; 61 - elastic member; 62 - cam bracket; 621 - second cam portion. DETAILED DESCRIPTION

[0011] 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.

[0012] 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.

[0013] The embodiments of the present application are described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0014] refer to Figures 1 to 8 The embodiment of the present application discloses a hinge mechanism, which can be applied to an electronic device to enable the electronic device to be folded or unfolded. The disclosed hinge mechanism includes a hinge bracket 10, a frame bracket 20, a first swing arm assembly 30, a second swing arm assembly 40 and a buffer assembly 50. Figures 1 to 5 shown.

[0015] The hinge bracket 10 is a basic installation component, which can provide a bearing and installation basis for the frame bracket 20, the first swing arm assembly 30, the second swing arm assembly 40, the buffer assembly 50, etc. The frame bracket 20 is used to connect with the frame of the electronic device to install the frame on the hinge bracket 10. Among them, the frame bracket 20 can be movably connected with the hinge bracket 10 through the first swing arm assembly 30 and the second swing arm assembly 40, so that the frame bracket 20 can be moved relative to the hinge bracket 10 to realize the folding or unfolding of the hinge mechanism. Optionally, the frame bracket 20 and the hinge bracket 10 can rotate relative to each other.

[0016] Optionally, the hinge mechanism may include two frame brackets 20, each frame bracket 20 being mounted to the hinge bracket 10 via a first swing arm assembly 30 and a second swing arm assembly 40. In addition, the first swing arm assembly 30 may be a synchronous swing arm assembly, and the second swing arm assembly 40 may be a virtual swing arm assembly.

[0017] In addition, if Figure 7 As shown, the first swing arm assembly 30 may include at least one pair of first swing arms 31, each pair containing two first swing arms 31, and the two first swing arms 31 may be meshed with each other through a synchronous gear 33. In this way, the two first swing arms 31 in each pair may be connected between each of the two frame supports 20 and the hinge support 10 to ensure that the two frame supports 20 are respectively movable relative to the hinge support 10.

[0018] Similarly, the second swing arm assembly 40 may include at least one pair of second swing arms 41, each pair containing two second swing arms 41, so that the two second swing arms 41 in each pair can be connected between each of the two frame brackets 20 and the hinge bracket 10 to ensure that the two frame brackets 20 can move respectively relative to the hinge bracket 10.

[0019] Considering that when the hinge mechanism is subjected to an impact (such as the electronic device falling), a large force will be generated between the frame bracket 20 and the hinge bracket 10. Since the first swing arm assembly 30 and the second swing arm assembly 40 are respectively connected between the frame bracket 20 and the hinge bracket 10, at least one of the first swing arm assembly 30 and the second swing arm assembly 40 will be subjected to the impact force, causing deformation of the weak area of ​​the connection between at least one of the first swing arm assembly 30 and the second swing arm assembly 40 and the hinge bracket 10 or the frame, thereby making the hinge mechanism prone to jamming, affecting the normal use of the hinge mechanism.

[0020] Based on the above situation, the hinge mechanism in the embodiment of the present application also includes a buffer component 50, which can absorb and disperse the impact energy when the hinge mechanism is impacted, thereby alleviating the problem of the hinge mechanism being stuck due to deformation of the weak area of ​​the connection between at least one of the first swing arm component 30 and the second swing arm component 40 and the hinge bracket 10 or the frame.

[0021] refer to Figure 3 and Figure 6 The buffer assembly 50 includes a first connector 51, a second connector 52 and a buffer medium 53. The first connector 51 is rotatably disposed on the hinge bracket 10, the second connector 52 is disposed on the frame bracket 20, and the first connector 51 and the second connector 52 are movably connected. The buffer medium 53 is disposed between the first connector 51 and the second connector 52, and is used to provide movement damping between the first connector 51 and the second connector 52 for buffering when the frame bracket 20 moves relative to the hinge bracket 10.

[0022] Exemplarily, the buffer medium 53 may be a fluid, such as grease, etc. Of course, the buffer medium 53 may also be an elastic member, as long as it can play a buffering role, and the specific form is not limited.

[0023] like Figure 6 As shown, during the falling process of the electronic device, the bottom of the hinge mechanism is limited to contact with the ground and is subjected to force. Due to weight inertia, the frame bracket 20 and the frame installed thereon tend to move downward. At this time, under the action of the buffer medium 53, the downward energy of the frame bracket 20 and the frame installed thereon can be absorbed, thereby protecting the reliability of the various parts of the hinge mechanism.

[0024] Based on the above configuration, the embodiment of the present application can make the frame support 20 and the hinge support 10 movably connected through the first swing arm assembly 30 and the second swing arm assembly 40 to ensure that the frame support 20 can move relative to the hinge support 10, thereby realizing the unfolding or folding of the hinge mechanism; by setting the buffer assembly 50, a buffering effect can be played between the frame support 20 and the hinge support 10. In this way, when the hinge mechanism is impacted, the buffer medium 53 can provide movement damping between the first connecting member 51 and the second connecting member 52 to consume part of the impact energy, and the frame support 20 and the hinge mechanism can be folded. The hinge brackets 10 act as buffers to reduce the impact energy borne by at least one of the first swing arm assembly 30 and the second swing arm assembly 40, thereby effectively alleviating the problem of the hinge mechanism being stuck due to deformation at the connection between at least one of the first swing arm assembly 30 and the second swing arm assembly 40 and the hinge bracket 10 caused by the impact, thereby ensuring the normal use of the hinge mechanism; in addition, the relative movement of the first connecting member 51 and the second connecting member 52 can also adapt to the unfolding or folding of the hinge mechanism to avoid motion interference that affects the normal use of the hinge mechanism.

[0025] refer to Figures 6 to 8 In some embodiments, the hinge mechanism may further include a first rotating shaft 32, and the first swing arm assembly 30 may be rotatably connected to the hinge bracket 10 via the first rotating shaft 32. Optionally, the first swing arm assembly 30 may include at least one pair of first swing arms 31, each pair including two first swing arms 31, and the hinge mechanism may include at least one pair of first rotating shafts 32, each pair including two first rotating shafts 32, so that the first swing arm 31 may be rotatably connected to the hinge bracket 10 via the corresponding first rotating shaft 32.

[0026] Optionally, the first connecting member 51 can be rotatably connected to the hinge bracket 10. To achieve relative rotation between the first connecting member 51 and the hinge bracket 10, the first connecting member 51 in the embodiment of the present application can be rotatably connected to the hinge bracket 10 via the first rotating shaft 32, so that the first connecting member 51 can be ensured to rotate smoothly relative to the hinge bracket 10.

[0027] Optionally, the second connector 52 and the frame support 20 may be fixedly connected, such as by welding, bonding, riveting, etc., to ensure the firmness of the connection between the second connector 52 and the frame support 20. Of course, the second connector 52 and the frame support 20 may also be detachably connected, such as by screwing, plugging, or clamping, etc., to facilitate disassembly.

[0028] To achieve the movable connection between the first connecting member 51 and the second connecting member 52, as shown in FIG. Figure 3 and Figure 6As shown, one of the first connecting member 51 and the second connecting member 52 can be provided with a cavity 521, and the other can be provided with a piston portion 5121, and the piston portion 5121 can be movably provided in the cavity 521. In this way, the cooperation between the piston portion 5121 and the inner wall of the cavity 521 can ensure smooth and unimpeded movement between the first connecting member 51 and the second connecting member 52 to prevent jamming.

[0029] The buffer medium 53 is arranged between the outer circumferential wall of the piston part 5121 and the inner circumferential wall of the cavity 521. In this way, the buffer medium 53 can increase the resistance between the outer circumferential wall of the piston part 5121 and the inner circumferential wall of the cavity 521. Therefore, when the hinge mechanism is subjected to an impact and the first connecting member 51 and the second connecting member 52 move relative to each other, the impact energy can be absorbed and consumed through the resistance of the buffer medium 53, effectively alleviating the problem of the impact energy directly acting on at least one of the first swing arm assembly 30 and the second swing arm assembly 40, causing the connection to be stuck.

[0030] Of course, during the folding or unfolding of the hinge mechanism, the buffer medium 53 can also generate resistance between the first connecting member 51 and the second connecting member 52 to generate damping during the folding or unfolding of the hinge mechanism, which is beneficial to improving the texture.

[0031] Furthermore, the inner cavity of the cavity 521 can be divided into a first space and a second space by the piston portion 5121, and there is a gap between the outer circumferential wall of the piston portion 5121 and the inner circumferential wall of the cavity 521, and the gap connects the first space and the second space, so that the buffer medium 53 can flow between the first space and the second space through the gap.

[0032] Based on this arrangement, when the hinge mechanism is impacted, the piston part 5121 can be moved from the second space to the first space, thereby squeezing the buffer medium 53 in the first space. At the same time, the buffer medium 53 can also apply a reverse force to the piston part 5121, so as to generate resistance to the relative movement of the first connecting member 51 and the second connecting member 52. The squeezed buffer medium 53 will flow from the first space to the second space along the gap, and can further generate resistance to the relative movement of the first connecting member 51 and the second connecting member 52 in the gap, so that when the hinge mechanism is impacted, it can play a certain supporting role between the frame bracket 20 and the hinge bracket 10, so as to make up for the disadvantage that at least one of the first swing arm assembly 30 and the second swing arm assembly 40 cannot play a supporting role, and with the flow of the buffer medium 53, the impact energy can be absorbed to alleviate the problem that the impact energy is directly applied to at least one of the first swing arm assembly 30 and the second swing arm assembly 40, resulting in the connection being stuck. It should be noted here that the compression of the buffer medium 53 may also cause its temperature to increase, which can also consume the impact energy.

[0033] In other embodiments, a seal may be further provided between the outer circumferential wall of the piston portion 5121 and the inner circumferential wall of the cavity 521, and compressible gas may be filled in the first space. Thus, when the first connecting member 51 moves relative to the second connecting member 52 and the piston portion 5121 compresses the compressible gas in the first space, the air pressure in the first space may increase, thereby generating a reverse force on the piston portion 5121. This method may also absorb the impact energy received by the hinge mechanism.

[0034] In some more specific embodiments, a piston portion 5121 may be provided at one end of the first connecting member 51, a cavity 521 may be provided at the second connecting member 52, and an opening 522 may be provided at one end of the cavity 521, and one end of the first connecting member 51 extends into the cavity 521 through the opening 522, and a sealing arrangement is provided at the connection between the first connecting member 51 and the opening 522. Based on this arrangement, it can be ensured that the piston portion 5121 at one end of the first connecting member 51 can extend into the cavity 521 of the second connecting member 52, thereby achieving smooth movement between the first connecting member 51 and the second connecting member 52; and the sealing arrangement can also effectively prevent the buffer medium 53 in the cavity 521 from leaking from the connection between the first connecting member 51 and the opening 522.

[0035] Optionally, the second connecting member 52 may include a housing and an end cap, the end cap is provided with an opening 522, the end cap is provided at the port of the housing, and blocks the port of the housing to prevent the piston portion 5121 from sliding out of the port. Exemplarily, the end cap is detachably connected to the housing to facilitate placing the piston portion 5121 of the first connecting member 51 in the cavity 521 of the second connecting member 52.

[0036] refer to Figure 3 and Figure 6 In some embodiments, the buffer assembly 50 may further include a sealing member 54, which is disposed at the opening 522 and is used to seal the connection between the first connecting member 51 and the opening 522. Optionally, the sealing member 54 may be a sealing ring, a sealing strip, or the like.

[0037] refer to Figure 3 In some embodiments, the first connecting member 51 may include a rotating arm 511 and a moving rod 512. The end of the rotating arm 511 away from the moving rod 512 is connected to the first rotating shaft 32, the end of the moving rod 512 away from the rotating arm 511 is movably disposed in the cavity 521, and the piston portion 5121 is disposed at the end of the moving rod 512 away from the rotating arm 511. Based on this arrangement, the first connecting member 51 can be rotated relative to the hinge bracket 10 by connecting the rotating arm 511 to the first rotating shaft 32; the piston portion 5121 at the end of the moving rod 512 is slidably connected to the cavity 521 of the second connecting member 52.

[0038] Optionally, the rotating arm 511 may be an arc-shaped member, and the moving rod 512 may be a long rod; the rotating arm 511 and the moving rod 512 may be fixedly connected or detachably connected, or the rotating arm 511 and the moving rod 512 may also be an integral structure.

[0039] Furthermore, the hinge bracket 10 can be provided with a mounting hole extending along the axial direction of the hinge mechanism, the first rotating shaft 32 is passed through the mounting hole, and one end of the first rotating shaft 32 passes through the mounting hole and protrudes from the end face of the hinge bracket 10, and one end of the first rotating shaft 32 is provided with a limiting end; accordingly, the rotating arm 511 can be provided with a connecting hole, the first rotating shaft 32 is passed through the connecting hole, and the rotating arm 511 is limited between the end face of the hinge bracket 10 and the limiting end.

[0040] Based on the above arrangement, the assembly of the rotating arm 511 and the first rotating shaft 32 can be ensured, and the two side surfaces of the rotating arm 511 can be limited respectively by the end face and the limiting end of the hinge bracket 10, thereby effectively preventing the first connecting member 51 from moving randomly in the axial direction of the hinge structure, and also preventing the first connecting member 51 from separating from the first rotating shaft 32.

[0041] Optionally, the first swing arm 31 and the first rotating shaft 32 may be rotatably connected; of course, the first swing arm 31 and the first rotating shaft 32 may also be fixedly connected. In this case, the first rotating shaft 32 needs to be rotatably connected to the hinge bracket 10.

[0042] To further improve the buffering effect, the hinge mechanism may include a plurality of buffer components 50, wherein, along the axial direction of the hinge mechanism, the first connecting member 51 of each buffer component 50 is located at the end surface of the hinge bracket 10, and the second connecting member 52 of each buffer component 50 is located at the end surface of the frame bracket 20. Based on this arrangement, it is possible to prevent the buffer component 50 from assembling interference with components such as the first swing arm component 30 and the second swing arm component 40. In addition, the buffer area can be expanded, which is conducive to increasing the protective effect on the hinge mechanism.

[0043] like Figure 1 and Figure 2 As shown, in some more specific embodiments, the two sides of the hinge bracket 10 can be connected to the frame bracket 20 through the first swing arm assembly 30 and the second swing arm assembly 40, respectively, and the two end faces of each frame bracket 20 along the axial direction of the hinge mechanism can be respectively provided with a second connecting member 52, and correspondingly, the two end faces of the hinge bracket 10 along the axial direction of the hinge mechanism can be respectively provided with a first connecting member 51. Based on this configuration, the hinge bracket 10 and the frame bracket 20 and other structures can be wrapped in the middle area through four groups of buffer assemblies 50, which can play a more comprehensive protective role for the hinge bracket 10 and the frame bracket 20 and other structures, improve the protective effect, thereby helping to improve the reliability and durability of the hinge mechanism and increase the service life of the hinge mechanism.

[0044] refer to Figure 1 , Figure 2 and Figure 5 In some embodiments, the hinge mechanism may further include a damping assembly 60 , which may be connected between the first swing arm assembly 30 and the hinge bracket 10 to provide rotational damping between the first swing arm assembly 30 and the hinge bracket 10 .

[0045] like Figure 7 As shown, the damping assembly 60 may include an elastic member 61 and a cam bracket 62. The cam bracket 62 is slidably connected to the first rotating shaft 32, and the elastic member 61 elastically connects the cam bracket 62 and the hinge bracket 10; accordingly, the first swing arm assembly 30 may be provided with a first cam portion 311, and the first cam portion 311 is adapted to the second cam portion 621 provided with the cam bracket 62. Based on this configuration, the elastic member 61 can generate an elastic force on the cam bracket 62, so that the first cam portion 311 and the second cam portion 621 generate an extrusion effect, so that the first swing arm assembly 30 is not easy to rotate relative to the hinge bracket 10, and a damping effect is played on the first swing arm assembly 30, thereby playing a damping effect on the folding or unfolding of the hinge mechanism, which is conducive to improving the texture.

[0046] In the embodiment of the present application, the buffer component 50 and the damping component 60 can jointly provide a damping effect on the hinge mechanism, thereby improving the stability of the folding or unfolding process of the hinge mechanism, which is beneficial to improving the texture.

[0047] In some more specific embodiments, the first swing arm assembly 30 may include a first swing arm 31, the first swing arm 31 is rotatably connected to the hinge bracket 10 via a first rotating shaft 32, and the first swing arm 31 is slidably connected to the frame bracket 20 via a matching slider and a slide groove. Based on this, it can be ensured that the first swing arm 31 rotates relative to the hinge bracket 10, and the frame bracket 20 can be moved relative to the first swing arm 31, so that the frame bracket 20 is not connected to the second swing arm assembly 40 and motion interference is avoided.

[0048] Exemplarily, the first swing arm 31 may be provided with a slider, and the frame support 20 may be provided with a slide groove; of course, the first swing arm 31 may be provided with a slide groove, and the frame support 20 may be provided with a slider.

[0049] In some more specific embodiments, the second swing arm assembly 40 includes a second swing arm 41, the second swing arm 41 is rotatably connected to the hinge bracket 10 through a bearing bush component, and the second swing arm 41 is rotatably connected to the frame bracket 20 through a second rotating shaft 21. Based on this, it is possible to ensure that the second swing arm 41 rotates relative to the frame bracket 20, and the second swing arm 41 can be moved relative to the hinge bracket 10, thereby avoiding motion interference caused by the frame bracket 20 being connected to the first swing arm assembly 30.

[0050] For example, the second swing arm 41 may be provided with a bearing bush concave surface, and the hinge bracket 10 may be provided with a bearing bush convex surface; or the second swing arm 41 may be provided with a bearing bush convex surface, and the hinge bracket 10 may be provided with a bearing bush concave surface. The sliding fit between the bearing bush concave surface and the bearing bush convex surface ensures the smooth movement of the second swing arm 41 and the hinge bracket 10.

[0051] Based on the above hinge mechanism, the embodiment of the present application further discloses an electronic device, and the disclosed electronic device includes the above hinge structure. Optionally, the electronic device can be a mobile phone, a tablet computer, a laptop computer, an e-book, a foldable headset, etc.

[0052] To sum up, the hinge mechanism in the embodiment of the present application can absorb the impact energy received by the hinge mechanism by adding the buffer assembly 50, which is beneficial to improving the risk of jamming and fracture in the reliability test of the hinge mechanism, thereby improving the reliability and durability of the hinge mechanism; by providing movement damping between the first connecting member 51 and the second connecting member 52 through the buffer medium 53, the lack of torque during the folding or unfolding of the hinge mechanism can be compensated.

[0053] 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, a frame bracket, a first swing arm assembly, a second swing arm assembly and a buffer assembly; The frame bracket is movably connected to the hinge bracket through the first swing arm assembly and the second swing arm assembly; The buffer assembly includes a first connecting member, a second connecting member and a buffer medium. The first connecting member is rotatably disposed on the hinge bracket, the second connecting member is disposed on the frame bracket, the first connecting member and the second connecting member are movably connected, and the buffer medium is disposed between the first connecting member and the second connecting member for providing movement damping between the first connecting member and the second connecting member for buffering when the frame bracket moves relative to the hinge bracket.

2. The hinge mechanism according to claim 1, characterized in that: The first swing arm assembly is rotatably connected to the hinge bracket via a first rotating shaft; The first connecting member is rotatably connected to the hinge bracket via the first rotating shaft; The second connecting member is fixedly connected to the frame support.

3. The hinge mechanism according to claim 2, characterized in that: One of the first connecting member and the second connecting member is provided with a cavity, and the other is provided with a piston portion, and the piston portion is movably provided in the cavity; The buffer medium is arranged between the outer peripheral wall of the piston part and the inner peripheral wall of the cavity.

4. The hinge mechanism according to claim 3, characterized in that: The inner cavity of the cavity is divided into a first space and a second space by the piston portion; There is a gap between the outer peripheral wall of the piston part and the inner peripheral wall of the cavity, and the gap connects the first space and the second space; The buffer medium may flow between the first space and the second space via the gap.

5. The hinge mechanism according to claim 3 or 4, characterized in that: One end of the first connecting member is provided with the piston portion, and the second connecting member is provided with the cavity; An opening is provided at one end of the cavity, one end of the first connecting member extends into the cavity through the opening, and a connection between the first connecting member and the opening is sealed.

6. The hinge mechanism according to claim 3 or 4, characterized in that: The first connecting member includes a rotating arm and a moving rod connected to each other; One end of the rotating arm facing away from the moving rod is connected to the first rotating shaft; One end of the moving rod which is away from the rotating arm is movably arranged in the cavity, and the piston part is arranged at the end of the moving rod which is away from the rotating arm.

7. The hinge mechanism according to claim 6, characterized in that: The hinge bracket is provided with a mounting hole extending along the axial direction of the hinge mechanism, the first rotating shaft is passed through the mounting hole, and one end of the first rotating shaft passes through the mounting hole and protrudes from the end surface of the hinge bracket, and one end of the first rotating shaft is provided with a limiting end head; The rotating arm is provided with a connecting hole, the first rotating shaft is passed through the connecting hole, and the rotating arm is restricted between the end surface of the hinge bracket and the limiting end.

8. The hinge mechanism according to any one of claims 1 to 4, characterized in that: The hinge mechanism includes a plurality of the buffer components; Along the axial direction of the hinge mechanism, the first connecting member of each buffer assembly is located at the end surface of the hinge bracket, and the second connecting member of each buffer assembly is located at the end surface of the frame bracket.

9. The hinge mechanism according to any one of claims 2 to 4, characterized in that: The hinge mechanism further comprises a damping assembly, the damping assembly comprises an elastic member and a cam bracket, the cam bracket is slidably connected to the first rotating shaft, and the elastic member elastically connects the cam bracket and the hinge bracket; The first swing arm assembly is provided with a first cam portion, and the first cam portion is matched with the second cam portion provided on the cam bracket.

10. An electronic device, characterized in that: The hinge mechanism comprises the hinge mechanism described in any one of claims 1 to 9.

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