Biaxial hinge mechanism and electronic device

Abstract

The utility model relates to the technical field of electronic equipment, and provides a double-shaft hinge mechanism and electronic equipment, the double-shaft hinge mechanism comprises a base, a rotating shaft assembly, a rocker arm assembly, an elastic piece and a damping structure; a containing cavity is formed in the base, and damping liquid is contained in the containing cavity; the rotating shaft assembly comprises a first rotating shaft and a second rotating shaft which are arranged side by side, and the first rotating shaft and the second rotating shaft are rotatably arranged on the base; the rocker arm assembly comprises a first rocker arm and a second rocker arm, the first rocker arm is connected with the first rotating shaft, and the second rocker arm is connected with the second rotating shaft; the elastic piece is arranged between the first end of the rotating shaft assembly and the rocker arm assembly and used for driving the first rocker arm and the second rocker arm to unfold; the damping structure comprises a rotating part and a containing cavity, at least one of the first rotating shaft and the second rotating shaft is provided with the rotating part, and the rotating part is rotatably arranged in the containing cavity and makes contact with the damping liquid in the containing cavity. According to the utility model, the installation space is saved, and the damping effect is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic equipment technical field especially relates to a double shaft hinge mechanism and electronic equipment. BACKGROUND

[0002] Electronic equipment with folding function, such as folding screen mobile phone or notebook computer etc., usually connect two structural members needing mutual folding through single shaft hinge or double shaft hinge mechanism. In order to make two structural members can be automatically unfolded, usually need to set torsional spring or other elastic structure on pivot to drive two structural members to unfold, for limiting the rotation speed of two structural members, set damping tank in base to fill damping grease to reach the effect of deceleration.

[0003] Since damping tank needs to be installed in base, the connecting shaft in damping tank is small due to space limitation, resulting in weak deceleration effect of damping grease. UTILITY MODEL CONTENTS

[0004] The utility model provides a double shaft hinge mechanism and electronic equipment to solve the problem that the connecting shaft in damping tank is small due to space limitation in prior art, resulting in weak deceleration effect of damping grease.

[0005] In order to solve the above technical problem, the utility model is realized as follows:

[0006] Firstly, the utility model provides a double shaft hinge mechanism, which comprises a base, a containing cavity is formed in the base, and damping liquid is filled in the containing cavity;

[0007] A pivot assembly comprises a first pivot and a second pivot arranged side by side, and the first pivot and the second pivot are rotatably arranged in the base;

[0008] A rocker assembly comprises a first rocker and a second rocker, the first rocker is connected with the first pivot, and the second rocker is connected with the second pivot;

[0009] An elastic member is arranged between the first end of the pivot assembly and the rocker assembly, and the elastic member is used to drive the first rocker and the second rocker to unfold;

[0010] A damping structure comprises a rotating member and the containing cavity, at least one of the first pivot and the second pivot is provided with the rotating member, the rotating member is rotatably arranged in the containing cavity and contacts with the damping liquid in the containing cavity.

[0011] According to the double shaft hinge mechanism provided by the utility model, the base comprises a base and a shell cover;

[0012] The base and the shell cover are connected, and the containing cavity is formed between the base and the shell cover.

[0013] According to the double-shaft hinge mechanism provided by the utility model, the rotating part comprises:

[0014] The central column is connected with the first rotating shaft or the second rotating shaft;

[0015] The plurality of ribs are sequentially and spacedly arranged along the circumference of the central column, and the recesses are formed between the adjacent two ribs.

[0016] According to the double-shaft hinge mechanism provided by the utility model, the rotating part further comprises a communication channel;

[0017] The communication channel is arranged in the central column, and the communication channel is configured to communicate at least part of the plurality of recesses with each other.

[0018] According to the double-shaft hinge mechanism provided by the utility model, the communication channel comprises:

[0019] The central hole is arranged at the center of the central column and is arranged along the axis of the central column;

[0020] The plurality of connecting holes are arranged, the first ends of the plurality of connecting holes are communicated with the plurality of recesses one by one, and the second ends of the plurality of connecting holes are all communicated with the central hole.

[0021] According to the double-shaft hinge mechanism provided by the utility model, the base is provided with a liquid injection hole;

[0022] The liquid injection hole is arranged in communication with the accommodating cavity, the liquid injection hole is provided with a sealing element, and the liquid injection hole is blocked by the sealing element.

[0023] According to the double-shaft hinge mechanism provided by the utility model, further comprising a gear set;

[0024] The first rocker arm and the second rocker arm are power-coupled and connected through the gear set, and the gear set is used for realizing reverse rotation of the first rocker arm and the second rocker arm.

[0025] According to the double-shaft hinge mechanism provided by the utility model,

[0026] The gear set comprises a first gear, a second gear, a third gear and a fourth gear;

[0027] The first gear, the second gear, the third gear and the fourth gear are sequentially and meshingly arranged, the first gear is connected with the first rocker arm, the second gear and the third gear are rotatably arranged in the base respectively, and the fourth gear is connected with the second rocker arm.

[0028] According to the dual-axis hinge mechanism provided by this utility model, it further includes:

[0029] A first mounting base is provided on the side of the elastic member away from the rotating member, along the axial direction of the first rotating shaft and the second rotating shaft, the first rotating shaft and the second rotating shaft passing through the first mounting base, the base is provided with a first support platform, and the first mounting base is pressed onto the first support platform and fixed to the first support platform;

[0030] The second mounting base is located on the other side of the elastic member. The first rotating shaft and the second rotating shaft pass through the second mounting base. The base is provided with a second support platform. The second mounting base is pressed onto the second support platform and fixed to the second support platform.

[0031] Secondly, this utility model provides an electronic device, including: a first device body, a second device body, and a dual-axis hinge mechanism as described above, wherein the first rocker arm is connected to the first device body, and the second rocker arm is connected to the second device body.

[0032] The dual-axis hinge mechanism and electronic device provided by this utility model, by arranging a first rotating shaft and a second rotating shaft side by side on a base, and providing a first rocker arm and a second rocker arm, with the first rocker arm connected to the first rotating shaft and the second rocker arm connected to the second rotating shaft, and setting an elastic element between the rotating shaft assembly and the rocker arm assembly, and by setting a receiving cavity for accommodating damping fluid on the base, and setting a rotating element on at least one of the first rotating shaft and the second rotating shaft, such that when the rotating shaft assembly rotates relative to the base, the rotating element on the rotating shaft assembly contacts the damping fluid in the receiving cavity to provide damping force to the rotating shaft assembly. Since the receiving cavity of the base can directly install the rotating element, it saves installation space, and since there is no need to set an additional damping box, it can also increase the outer diameter of the rotating element, further improving the damping effect. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 This is an exploded view of the dual-axis hinge mechanism provided by this utility model.

[0035] Figure 2 This is an exploded view of the dual-axis hinge mechanism provided by this utility model after the base has been removed.

[0036] Figure 3It is the three-dimensional structure schematic view of the shell cover provided in the utility model.

[0037] Figure 4 It is the three-dimensional structure schematic view of the base provided in the utility model.

[0038] Figure 5 It is the cooperation schematic view of the damping structure and the base provided in the utility model.

[0039] Figure 6 It is the three-dimensional structure schematic view of the first rotating shaft provided in the utility model.

[0040] Figure 7 It is the sectional view of the first rotating shaft provided in the utility model.

[0041] Reference signs:

[0042] 1, base; 11, base; 12, shell cover; 13, accommodating cavity; 111, liquid injection hole; 121, first support table; 122, second support table;

[0043] 2, rotating shaft assembly; 21, first rotating shaft; 22, second rotating shaft;

[0044] 3, rocker arm assembly; 31, first rocker arm; 32, second rocker arm;

[0045] 4, elastic piece;

[0046] 5, damping structure; 51, rotating piece; 511, center column; 512, rib; 513, groove; 514, communication channel; 5141, center hole; 5142, connecting hole;

[0047] 6, gear set; 61, first gear; 62, second gear; 63, third gear; 64, fourth gear; 65, gear seat;

[0048] 7, sealing piece; 8, first mounting seat; 9, second mounting seat. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme in the utility model will be described clearly and completely in combination with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0050] The double-shaft hinge mechanism and electronic equipment provided in the utility model embodiments will be described in detail in combination with Figures 1 to 7 , through specific embodiments and application scenarios.

[0051] In a first aspect, as shown in Figure 1 and Figure 2 The embodiment provides a double-shaft hinge mechanism, which comprises a base 1, a rotating shaft assembly 2, a rocker assembly 3, an elastic member 4 and a damping structure 5.

[0052] The base 1 is provided with a containing cavity 13, and the containing cavity 13 is filled with damping liquid.

[0053] The rotating shaft assembly 2 comprises a first rotating shaft 21 and a second rotating shaft 22 arranged side by side, and the first rotating shaft 21 and the second rotating shaft 22 are rotatably arranged on the base 1.

[0054] The rocker assembly 3 comprises a first rocker 31 and a second rocker 32, the first rocker 31 is connected with the first rotating shaft 21, and the second rocker 32 is connected with the second rotating shaft 22.

[0055] The elastic member 4 is arranged between the first end of the rotating shaft assembly 2 and the rocker assembly 3, and the elastic member 4 is used for driving the first rocker 31 and the second rocker 32 to unfold.

[0056] The damping structure 5 comprises a rotating member 51 and the containing cavity 13, at least one of the first rotating shaft 21 and the second rotating shaft 22 is provided with the rotating member 51, the rotating member 51 is rotatably arranged in the containing cavity 13 and is in contact with the damping liquid in the containing cavity 13.

[0057] It can be understood that the base 1 can be made of metal or non-metal, the base 1 can not only serve as a mounting support on which the rotating shaft assembly 2 is mounted, but also provide the containing cavity 13 filled with damping liquid.

[0058] The first rotating shaft 21 and the second rotating shaft 22 in the rotating shaft assembly 2 are configured as long rod structures, the first rotating shaft 21 and the second rotating shaft 22 can be arranged in parallel and spaced apart, and the first rotating shaft 21 and the second rotating shaft 22 are rotatably arranged on the base 1. Moreover, the first rotating shaft 21 and the second rotating shaft 22 are in a power-coupled connection state, that is, when one of the first rotating shaft 21 and the second rotating shaft 22 rotates, it can drive the other one of the first rotating shaft 21 and the second rotating shaft 22 to rotate synchronously.

[0059] The first swing arm 31 and the second swing arm 32 each have a connecting portion and an external connecting portion. The connecting portion of the first swing arm 31 has a first mounting hole into which the first rotating shaft 21 extends and is fixedly connected with the first swing arm 31. The external connecting portion can be used to connect an external device body. The connecting portion of the second swing arm 32 has a second mounting hole into which the second rotating shaft 22 extends and is fixedly connected with the second swing arm 32. The external connecting portion can be used to connect an external device body. In the process of rotation, the first rotating shaft 21 can drive the first swing arm 31 to rotate synchronously. Correspondingly, in the process of rotation, the second rotating shaft 22 can also drive the second swing arm 32 to rotate synchronously.

[0060] The elastic member 4 can be an elastic structure such as a torsion spring. In the embodiment, the elastic member 4 is arranged between the rotating shaft assembly 2 and the swing arm assembly. The elastic member 4 can exert a force on the first swing arm 31 and the second swing arm 32 to make the first swing arm 31 and the second swing arm 32 spread apart from each other.

[0061] Specifically, the elastic member 4 can be a double torsion spring. The double torsion spring includes two spiral portions. One end of the two spiral portions is connected with each other through a rod-shaped connecting segment. The other end of the two spiral portions is provided with torsion arms that move away from each other. The connecting portions of the first swing arm 31 and the second swing arm 32 are respectively provided with clamping grooves that can cooperate with the torsion arms of the two spiral portions.

[0062] When the first swing arm 31 and the second swing arm 32 are fixedly connected to the first rotating shaft 21 and the second rotating shaft 22 respectively during installation, the two spiral portions of the torsion spring can be respectively sleeved on the first rotating shaft 21 and the second rotating shaft 22. The torsion arms of the two spiral portions are respectively clamped in the clamping grooves of the connecting portions of the first swing arm 31 and the second swing arm 32. At this time, under the driving of the elastic force of the torsion spring, the first swing arm 31 and the second swing arm 32 can be made to spread apart from each other.

[0063] Further, in order to limit the spreading speed of the first swing arm 31 and the second swing arm 32, a damping structure 5 is arranged between the base 1 and the rotating shaft assembly 2. The damping structure 5 can limit the rotating speed of the first rotating shaft 21 and / or the second rotating shaft 22.

[0064] In order to save space and simplify the number of parts, the rotating member 51 in the damping structure 5 can be directly arranged on the rotating shaft assembly 2. The rotating member 51 can be arranged only on the first rotating shaft 21, only on the second rotating shaft 22, or on both the first rotating shaft 21 and the second rotating shaft 22. In order to increase the damping effect, the first rotating shaft 21 and the second rotating shaft 22 of the embodiment are each provided with a rotating member 51.

[0065] Under the action of the damping structure 5, the rotating speed of the first rotating shaft 21 and the second rotating shaft 22 can be effectively limited, and the unfolding speed of the first rocker arm 31 and the second rocker arm 32 can be slowed down, so that, when the double-axle hinge mechanism is applied to the electronic device with the folding function, the unfolding speed of the two device main bodies in the electronic device can be effectively limited, the two device main bodies can be opened at a relatively slow and uniform speed, damage to the electronic device is avoided, and the use experience of the user is improved.

[0066] The rotating member 51 rotates in the accommodating cavity 13, the accommodating cavity 13 is directly formed by the internal space of the base 1, the damping liquid is fully filled in the accommodating cavity 13, and the rotating member 51 contacts the damping liquid and is interfered by the damping liquid when rotating in the accommodating cavity 13. Since the accommodating cavity 13 of the base 1 can be filled with the damping liquid, it is not necessary to additionally arrange a damping box to accommodate the damping liquid and install the damping box, so that the installation of the damping structure 5 and the base 1 is more compact. Further, since the accommodating cavity 13 of the base 1 directly accommodates the rotating member 51, the outer diameter of the rotating member 51 can be increased, and thus the contact area of the rotating member 51 and the damping liquid is increased, so that the damping effect is improved, and the rotating speed of the rotating shaft assembly 2 can be effectively reduced.

[0067] The double-axle hinge mechanism provided by the utility model, through setting the first rotating shaft 21 and the second rotating shaft 22 side by side on the base 1 and setting the first rocker arm 31 and the second rocker arm 32, the first rocker arm 31 is connected with the first rotating shaft 21, the second rocker arm 32 is connected with the second rotating shaft 22, setting the elastic member 4 between the rotating shaft assembly 2 and the rocker arm assembly 3, setting the accommodating cavity 13 containing the damping liquid on the base 1 and setting the rotating member 51 on at least one of the first rotating shaft 21 and the second rotating shaft 22, so that when the rotating shaft assembly 2 rotates relative to the base 1, the rotating member 51 on the rotating shaft assembly 2 contacts the damping liquid in the accommodating cavity 13 and provides damping force to the rotating shaft assembly 2, since the accommodating cavity 13 of the base 1 can directly install the rotating member 51, the installation space is saved, and since it is not necessary to additionally set the damping box, the outer diameter of the rotating member 51 can be increased, and the damping effect is further improved.

[0068] As shown in the figure, Figure 1 The base 1 of the embodiment includes the base 11 and the shell 12.

[0069] The base 11 and the shell 12 are connected, and the accommodating cavity 13 is formed between the base 11 and the shell 12.

[0070] It can be understood that the base 11 and the shell 12 can be connected to each other in a matching manner, and can be fixed to each other by means of bolts or buckles or the like. After the base 11 and the shell 12 are connected to each other, a containing space can be formed between the base 11 and the shell 12, the rotating shaft assembly 2, the elastic member 4 and the damping structure 5 can all be arranged in the containing space, and the rotating shaft assembly 2 can be fixed to the base 11. Moreover, a containing cavity 13 filled with damping liquid can be separately arranged in the containing space.

[0071] Further, in order to facilitate the connection of an external device body, a through slot is arranged at the connection between the base 11 and the shell 12, and the outer connecting portion of the first rocker arm 31 and the outer connecting portion of the second rocker arm 32 can extend to the outside of the containing space through the through slot, so as to facilitate the connection with other device bodies outside.

[0072] As shown in Figure 5 , Figure 6 and Figure 7 , the rotating member 51 of the embodiment comprises a center column 511 and a rib 512.

[0073] The center column 511 is connected with the first rotating shaft 21 or the second rotating shaft 22.

[0074] The rib 512 is provided in plurality, and the plurality of ribs 512 are sequentially and spacedly arranged along the circumference of the center column 511, and a groove 513 is formed between the adjacent two ribs 512.

[0075] It can be understood that the center column 511 is usually provided in the form of a rod body, and in order to enhance the disturbance of the rotating member 51 to the damping liquid, the embodiment is provided with a plurality of ribs 512 on the outer wall of the center column 511. The rib 512 is protruded on the outer wall of the center column 511, and the groove 513 is formed between the adjacent ribs 512. When the center column 511 rotates in the containing cavity 13, the damping liquid in the groove 513 is filled with the damping liquid, so that the contact area between the damping liquid and the center column 511 is increased, and the damping liquid is disturbed with the rotation of the center column 511, so that the damping liquid flows rapidly to fill the containing cavity 13, and the damping effect is further improved.

[0076] Further, the extension direction of the rib 512 of the embodiment is arranged along the axis of the center column 511, so that the extension direction of the groove 513 is also arranged along the axis of the center column 511. In the process of rotation of the center column 511, the rotation direction of the damping liquid in the groove 513 is perpendicular to the flow direction, and the disturbance effect of the damping liquid is further enhanced.

[0077] As shown in Figure 5 and Figure 6 , the rotating member 51 of the embodiment further comprises a communication passage 514.

[0078] The communication passage 514 is arranged in the center column 511, and is configured to communicate at least part of the plurality of grooves 513 with each other.

[0079] It can be understood that the communication passage 514 can communicate the plurality of grooves 513 with each other, and the damping liquid at different positions of the outer wall of the center column 511 can flow from the inside of the center column 511 through the communication passage 514, accelerating the disturbance of the damping liquid in the accommodation cavity 13, thereby enhancing the damping effect of the damping liquid on the rotating member 51.

[0080] Specifically, the communication passage 514 can be arranged as a connection structure between two grooves 513, or as a main communication structure respectively communicating with each groove 513, so as to exchange the damping liquid of different grooves 513.

[0081] As shown in Figure 5 and Figure 6 , the communication passage 514 of the embodiment includes a center hole 5141 and a connecting hole 5142.

[0082] The center hole 5141 is arranged at the center of the center column 511 and extends along the axis of the center column 511.

[0083] The connecting hole 5142 is arranged in plurality, and the first end of the plurality of connecting holes 5142 respectively communicates with the plurality of grooves 513, and the second end of the plurality of connecting holes 5142 all communicates with the center hole 5141.

[0084] It can be understood that the damping liquid in each groove 513 flows into the center hole 5141 through the connecting hole 5142, and based on the divergent communication structure of the center hole 5141 and different grooves 513, the flow of the damping liquid between different grooves 513 is realized, the flow speed of the damping liquid is improved, and the contact area of the damping liquid is increased, thereby making the damping effect on the rotating member 51 better.

[0085] As shown in Figure 4 , the base 1 of the embodiment is provided with a liquid injection hole 111.

[0086] The liquid injection hole 111 is arranged in communication with the accommodation cavity 13, and the liquid injection hole 111 is arranged with a sealing member 7, and the liquid injection hole 111 is blocked by the sealing member 7.

[0087] It can be understood that when testing the electronic equipment out of the factory, the equipment main body needs to be rotated to test the rotation speed, and the damping liquid needs to be added when the speed is too fast.

[0088] Compared with the structure of the damping box, the damping liquid needs to be added by disassembling the rotating shaft assembly 2, the rocker arm assembly 3, the elastic member 4 and the damping structure 5 from the base 1, and then disassembling the damping box to add the damping liquid. The damping liquid accommodating cavity 13 of the embodiment is directly arranged on the base 1. By arranging the liquid injection hole 111 on the base 1, the liquid injection hole 111 is in communication with the accommodating cavity 13. The sealing member 7 can be directly disassembled from the liquid injection hole 111 without disassembling the double-shaft hinge mechanism, and the damping liquid can be directly added through the liquid injection hole 111. The process of adding the damping liquid is more flexible and convenient, improves the test efficiency of the double-shaft hinge mechanism, saves manpower, and reduces cost.

[0089] Optionally, the sealing member 7 can be a sealing screw.

[0090] As shown in the figure, Figure 2 The embodiment further includes a gear set 6.

[0091] The first rocker arm 31 and the second rocker arm 32 are power-coupled and connected through the gear set 6, and the gear set 6 is used to realize the reverse rotation of the first rocker arm 31 and the second rocker arm 32.

[0092] It can be understood that the first rocker arm 31 and the second rocker arm 32 need to be relatively close or far away to realize the unfolding and closing of different device bodies of the electronic device. The first rocker arm 31 and the second rocker arm 32 realize reverse rotation through the meshing of multiple gears in the gear set 6, and the structure is compact and the transmission efficiency is high.

[0093] As shown in the figure, Figure 2 The gear set 6 of the embodiment includes a first gear 61, a second gear 62, a third gear 63 and a fourth gear 64.

[0094] The first gear 61, the second gear 62, the third gear 63 and the fourth gear 64 are sequentially meshed and arranged. The first gear 61 is connected with the first rocker arm 31, the second gear 62 and the third gear 63 are rotatably arranged on the base 1, and the fourth gear 64 is connected with the second rocker arm 32.

[0095] It can be understood that the gear set 6 of the embodiment includes a first gear 61, a second gear 62, a third gear 63, a fourth gear 64 and a gear seat 65. The gear seat 65 is mounted on the base 1, and the gear seat 65 is provided with four mounting holes for mounting the first rotating shaft 21, the second rotating shaft 22, the second gear 62 and the third gear 63. The first gear 61 is arranged on the circumferential wall of the connecting portion of the first rocker arm 31, the fourth gear 64 is arranged on the circumferential wall of the second rocker arm 32, the rotation directions of the third gear 63 and the fourth gear 64 are opposite, the first gear 61 is meshed with the second gear 62, the second gear 62 is meshed with the third gear 63, the third gear 63 is meshed with the fourth gear 64, and the reverse rotation of the first rocker arm 31 and the second rocker arm 32 is realized.

[0096] Thus, in the process of the first rotating shaft 21 driving the first rocker arm 31 to rotate, the second rotating shaft 22 can rotate in the opposite direction of the first rotating shaft 21 through the sequential transmission of the first gear 61, the second gear 62, the third gear 63, the fourth gear 64 and the second rocker arm 32.

[0097] As shown in Figure 1 and Figure 3 , the double-shaft hinge mechanism of the embodiment further comprises a first mounting seat 8 and a second mounting seat 9.

[0098] The first mounting seat 8 is arranged on the side of the elastic member 4 away from the rotating member 51, and the first rotating shaft 21 and the second rotating shaft 22 penetrate the first mounting seat 8 along the axial direction of the first rotating shaft 21 and the second rotating shaft 22. The base 1 is provided with a first support table 121, and the first mounting seat 8 is pressed on the first support table 121 and fixed with the first support table 121.

[0099] The second mounting seat 9 is arranged on the other side of the elastic member 4, and the first rotating shaft 21 and the second rotating shaft 22 penetrate the second mounting seat 9. The base 1 is provided with a second support table 122, and the second mounting seat 9 is pressed on the second support table 122 and fixed with the second support table 122.

[0100] It can be understood that, in order to enable the first rotating shaft 21 and the second rotating shaft 22 to be rotatably arranged on the base 1, the double-shaft hinge mechanism further comprises the first mounting seat 8 and the second mounting seat 9. The first mounting seat 8 is provided with two plug-in holes arranged in parallel and at intervals, and the first mounting seat 8 is fixedly arranged on the base 1. The first end of each of the first rotating shaft 21 and the second rotating shaft 22 is respectively inserted into the two plug-in holes of the first mounting seat 8. Thus, under the positioning of the first mounting seat 8, the first rotating shaft 21 and the second rotating shaft 22 are rotatably arranged on the base 1. The first mounting seat 8 is provided with a mounting hole, and the top of the first support table 121 on the base 1 is also provided with a mounting hole. During installation, fasteners are used to fix the first mounting seat 8 with the first support table 121.

[0101] The second mounting seat 9 comprises a first seat body and a second seat body arranged at intervals. The first seat body and the second seat body are both provided with through holes, and the first rotating shaft 21 and the second rotating shaft 22 are simultaneously inserted into the through holes of the first seat body and the second seat body respectively. The elastic member 4 is installed in the interval between the first seat body and the second seat body to constrain the elastic member 4 in the interval and prevent the elastic member 4 from falling off. The second seat body is provided with a mounting hole, and the top of the second support table 122 on the base 1 is also provided with a mounting hole. During installation, fasteners are used to fix the second seat body with the second support table 122.

[0102] In an embodiment, in order to ensure sufficient structural stability after being connected with the device body outside, as Figure 1As shown, the number of the rotation shaft assemblies 2 is two, and each of the two rotation shaft assemblies 2 is provided with a swing arm assembly, an elastic member 4 and a damping structure 5.

[0103] The base 1 is provided with two rotation shaft assemblies 2, and the two rotation shaft assemblies 2 are oppositely arranged. For the convenience of description, the rotation shaft assembly 2 located on the left side is the first rotation shaft assembly, and the rotation shaft assembly 2 located on the right side is the second rotation shaft assembly. In this way, there is enough distance between the swing arm assemblies corresponding to the two rotation shaft assemblies 2, and after the two swing arm assemblies are simultaneously connected to the two device main bodies in the external electronic device for realizing the folding function, the two device main bodies can effectively ensure sufficient stability in structure.

[0104] In a second aspect, the embodiment provides an electronic device, which comprises a first device main body, a second device main body and the above-mentioned dual-axis hinge mechanism, the first swing arm 31 is connected to the first device main body, and the second swing arm 32 is connected to the second device main body.

[0105] Specifically, since the electronic device comprises the dual-axis hinge mechanism, and the specific structure of the dual-axis hinge mechanism is referred to the above-mentioned embodiment, the electronic device shown in the embodiment comprises all the technical solutions of the above-mentioned embodiments, and therefore, at least has all the beneficial effects obtained by all the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0106] It can be understood that the dual-axis hinge mechanism in the embodiment can be arranged in an electronic device having a folding function, and the two device main bodies for realizing the folding in the electronic device can be in a folded state, at this time, the first swing arm 31 and the second swing arm 32 connected to the two device main bodies are synchronously in a folded state, and the elastic member 4 is compressed. In the process of switching the two structural members for realizing the folding from the folded state to the unfolded state, the elastic member 4 is released, which can exert an elastic force on the first swing arm 31 and the second swing arm 32, so that the first swing arm 31 and the second swing arm 32 are unfolded, at this time, the two device main bodies for realizing the folding in the electronic device can be gradually unfolded and switched to the unfolded state.

[0107] In actual application scenarios, when the biaxial hinge mechanism in the embodiment is used in electronic devices with folding functions, in a normal use state, the two device bodies are kept in a folded state under the restriction of other functional structures, at this time, the first rocker arm 31 and the second rocker arm 32 connected to the two device bodies respectively are also in a close-together position. When the two structural members are switched from the folded state to the unfolded state, the two structural members are no longer restricted, under the action of the elastic member 4, the first rocker arm 31 and the second rocker arm 32 gradually unfold, at the same time, the first rotating shaft 21 and the second rotating shaft 22 also rotate with the first rocker arm 31 and the second rocker arm 32 respectively, under the restriction of the damping structure 5, the first rotating shaft 21 will rotate at a relatively slow speed, accordingly, the first rocker arm 31 and the second rocker arm 32 will also unfold at a relatively slow speed, finally, the two structural members in the electronic device are opened at a relatively slow and uniform speed.

[0108] The first device body and the second device body in the electronic device are connected through the biaxial hinge mechanism, the first device body can be switched between a folded position and an open position relative to the second device body, when the first device body is in the folded position relative to the second device body, the first device body and the second device body can be in a close-together state, and the first rocker arm 31 and the second rocker arm 32 in the biaxial hinge mechanism are in a contracted state, the included angle between the first rocker arm 31 and the second rocker arm 32 can also be considered as 0°. When the first device body is in the open position relative to the second device body, the first device body and the second device body can be in an unfolded state, at this time, the included angle between the first device body and the second device body can be unfolded, and the first rocker arm 31 and the second rocker arm 32 in the biaxial hinge mechanism are in an unfolded state, the included angle between the first rocker arm 31 and the second rocker arm 32 is also unfolded to the same angle.

[0109] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A dual-axis hinge mechanism, characterized in that, include: A base, wherein a receiving cavity is formed within the base, and the receiving cavity is filled with damping fluid; A rotating shaft assembly includes a first rotating shaft and a second rotating shaft arranged side by side, the first rotating shaft and the second rotating shaft being rotatably disposed on the base; A rocker arm assembly includes a first rocker arm and a second rocker arm, wherein the first rocker arm is connected to a first rotating shaft and the second rocker arm is connected to a second rotating shaft; An elastic element is disposed between the first end of the rotating shaft assembly and the rocker arm assembly, and the elastic element is used to drive the first rocker arm and the second rocker arm to unfold. A damping structure includes a rotating member and a receiving cavity, wherein at least one of the first rotating shaft and the second rotating shaft is provided with the rotating member, the rotating member being rotatably disposed within the receiving cavity and in contact with the damping fluid within the receiving cavity.

2. The dual-axis hinge mechanism according to claim 1, characterized in that, The base includes a base and a housing; The base and the housing are connected, and the receiving cavity is formed between the base and the housing.

3. The dual-axis hinge mechanism according to claim 1, characterized in that, The rotating component includes: The central column is connected to either the first or the second rotating shaft; The ribs are provided in multiples, and the multiple ribs are arranged sequentially at intervals along the circumference of the central column, with a groove formed between two adjacent ribs.

4. The dual-axis hinge mechanism according to claim 3, characterized in that, The rotating component also includes a connecting channel; The connecting channel is located within the central column and is configured to connect at least a portion of the plurality of grooves to each other.

5. The dual-axis hinge mechanism according to claim 4, characterized in that, The communication channel includes: A central hole is provided at the center of the central column and extends along the axis of the central column; The connection holes are provided in multiple ways. The first end of each connection hole is connected to a corresponding groove, and the second end of each connection hole is connected to the central hole.

6. The dual-axis hinge mechanism according to claim 1, characterized in that, The base is provided with a liquid injection hole; The injection hole is connected to the accommodating cavity, and the injection hole is equipped with a sealing element to seal the injection hole.

7. The dual-axis hinge mechanism according to claim 1, characterized in that, It also includes gear sets; The first rocker arm and the second rocker arm are connected by a power coupling through the gear set, which is used to realize the first rocker arm and the second rocker arm rotating in opposite directions.

8. The dual-axis hinge mechanism according to claim 7, characterized in that, The gear set includes: a first gear, a second gear, a third gear, and a fourth gear; The first gear, the second gear, the third gear, and the fourth gear are sequentially meshed. The first gear is connected to the first rocker arm. The second gear and the third gear are rotatably mounted on the base. The fourth gear is connected to the second rocker arm.

9. The dual-axis hinge mechanism according to claim 1, characterized in that, Also includes: A first mounting base is provided on the side of the elastic member away from the rotating member, along the axial direction of the first rotating shaft and the second rotating shaft, the first rotating shaft and the second rotating shaft passing through the first mounting base, the base is provided with a first support platform, and the first mounting base is pressed onto the first support platform and fixed to the first support platform; The second mounting base is located on the other side of the elastic member. The first rotating shaft and the second rotating shaft pass through the second mounting base. The base is provided with a second support platform. The second mounting base is pressed onto the second support platform and fixed to the second support platform.

10. An electronic device, characterized in that, include: The device comprises a first device body, a second device body, and a dual-axis hinge mechanism as described in any one of claims 1 to 9, wherein the first rocker arm is connected to the first device body, and the second rocker arm is connected to the second device body.

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