Hinge structure and electronic device

Abstract

The present application discloses a hinge structure and an electronic device, wherein the hinge structure includes: a shaft portion, including at least two rotating shafts; a swing arm assembly, including at least two relatively arranged swing arm portions; a driving assembly, including at least two relatively arranged first cams, the first cam being movably connected to the rotating shaft, and the at least two swing arm portions being connected to the rotating shaft through the at least two first cams; a damping mechanism, including a connected second cam and a damping portion, the second cam and the damping portion being movably connected to the rotating shaft, the first cam and the second cam being relatively arranged and moving in coordination; a bracket, provided on the rotating shaft, and located along the axial direction of the rotating shaft on a side of the first cam away from the second cam, wherein the swing arm portion is movably connected to the first cam along the axial direction of the rotating shaft, and when the swing arm portion rotates, the first cam pushes the damping portion to move through the second cam, causing at least a portion of the damping portion to deform, and the second cam pushes the first cam to contact the bracket, so that friction is generated between the first cam and the bracket.

Description

Technical Field

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

[0002] In related art, hinge structures typically consist of a rotating shaft, a swing arm assembly mounted on the shaft, and a damping mechanism. During movement of the swing arm assembly, the swing arm assembly drives the damping mechanism axially, and the friction between the swing arm assembly and the damping mechanism allows the hinge structure to hover. However, this design provides insufficient damping force. Summary of the Invention

[0003] The present application aims to provide a hinge structure and an electronic device, which at least solve the problem of insufficient damping force of the hinge structure.

[0004] In order to solve the above technical problems, this application is implemented as follows:

[0005] In the first aspect, an embodiment of the present application proposes a hinge structure, including: a shaft portion, including at least two rotating shafts; a swing arm assembly, the swing arm assembly includes at least two relatively arranged swing arm portions; a driving assembly, the driving assembly includes at least two relatively arranged first cams, the first cam is movably connected to the rotating shaft, and at least two swing arm portions are connected to the rotating shaft through at least two first cams; a damping mechanism, the damping mechanism includes a connected second cam and a damping portion, the second cam and the damping portion are both movably connected to the rotating shaft, the first cam and the second cam are relatively arranged and move in coordination; a bracket, provided on the rotating shaft, along the axial direction of the rotating shaft, the bracket is located on the side of the first cam away from the second cam, wherein along the axial direction of the rotating shaft, the swing arm portion is movably connected to the first cam, and when the swing arm portion rotates, the first cam pushes the damping portion to move through the second cam, so that at least a part of the damping portion is deformed, and the second cam pushes the first cam to contact the bracket, so that the first cam and the bracket generate friction.

[0006] In a second aspect, an embodiment of the present application provides an electronic device, comprising: a hinge structure as described in any one of the first aspects.

[0007] In an embodiment of the present application, a hinge structure includes a shaft, a swing arm assembly, a drive assembly, a damping mechanism, and a bracket. The swing arm assembly includes at least two opposing swing arm portions. The drive assembly includes at least two opposing first cams, each movably connected to a rotating shaft. The swing arm portion is connected to the first cam, such that the swing arm portion can rotate relative to the rotating shaft via the first cam, thereby placing the hinge structure in a folded state, an unfolded state, or a hovering state. The damping mechanism includes a second cam and a damping portion, each connected to the first cam. The second cam is disposed on one side of the first cam, and the bracket is disposed on the other side of the first cam. The first cam is movably connected to the swing arm portion. Thus, when the swing arm portion rotates, one end of the first cam rubs against the second cam, driving the damping portion to deform and generate a damping force. The other end of the first cam can move toward the bracket to contact the bracket and rotate relative to the bracket, generating friction between the first cam and the bracket. That is, when the first cam rotates, it must overcome friction between the second cam and the bracket, thereby increasing the torque of the hinge structure and improving the opening and closing feel.

[0008] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0010] Figure 1 is a structural schematic diagram of a hinge structure according to an embodiment of the present application;

[0011] Figure 2 is a partial schematic diagram of a hinge structure according to an embodiment of the present application;

[0012] Figure 3 It is an exploded schematic diagram of a swing arm assembly according to an embodiment of the present application.

[0013] Reference numerals:

[0014] 1 shaft portion, 10 first rotating shaft, 12 second rotating shaft, 2 swing arm assembly, 20 swing arm portion, 21 driving assembly, 210 first cam, 212 fourth cam, 22 limiting protrusion, 23 first connecting shaft, 24 limiting portion, 3 damping mechanism, 30 second cam, 32 damping portion, 322 baffle, 323 first elastic member, 324 second elastic member, 325 second connecting shaft, 326 third elastic member, 34 third cam, 36 limiting recess, 4 bracket, 5 synchronization mechanism, 50 first tooth portion, 51 second tooth portion, 52 first gear, 53 second gear, 6 damping module. DETAILED DESCRIPTION

[0015] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0016] The features of the terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0017] In the description of this application, it should be understood that the terms "upper", "lower", "axial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.

[0018] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0019] The following combination Figure 1-Figure 3 A hinge structure and an electronic device according to embodiments of the present application are described.

[0020] like Figure 1 and Figure 2As shown, according to some embodiments of the present application, the hinge structure includes: a shaft portion 1, including at least two rotating shafts; a swing arm assembly 2, the swing arm assembly 2 includes at least two oppositely arranged swing arm portions 20; a driving assembly 21, the driving assembly 21 includes at least two oppositely arranged first cams 210, the first cams 210 are movably connected to the rotating shaft, and at least two swing arm portions 20 are connected to the rotating shaft through at least two first cams 210; a damping mechanism 3, the damping mechanism 3 includes a second cam 30 and a damping portion 32 connected to the rotating shaft, and the second cam 30 and the damping portion 32 are both connected to the rotating shaft The first cam 210 and the second cam 30 are movably connected, and are relatively arranged and move in coordination with each other; the bracket 4 is provided on the rotating shaft, and along the axial direction of the rotating shaft, the bracket 4 is located on the side of the first cam 210 away from the second cam 30, wherein, along the axial direction of the rotating shaft, the swing arm portion 20 is movably connected with the first cam 210, and when the swing arm portion 20 rotates, the first cam 210 pushes the damping portion 32 to move through the second cam 30, so that at least a part of the damping portion 32 is deformed, and the second cam 30 pushes the first cam 210 to contact the bracket 4, so that the first cam 210 and the bracket 4 generate friction.

[0021] In an embodiment of the present application, the hinge structure includes a shaft portion 1, a swing arm assembly 2, a drive assembly 21, a damping mechanism 3, and a bracket 4. The swing arm assembly 2 includes at least two oppositely disposed swing arm portions 20. The drive assembly 21 includes at least two oppositely disposed first cams 210, which are movably connected to the rotating shaft. The swing arm portions 20 are connected to the first cams 210, so that the swing arm portions 20 can rotate relative to the rotating shaft through the first cams 210, so that the hinge structure is in a folded state, an unfolded state, or a hovering state. The damping mechanism 3 includes a second cam 30 and a damping part 32 connected to each other. The second cam 30 is provided on one side of the first cam 210, and the bracket 4 is provided on the other side of the first cam 210, and the first cam 210 is movably connected to the swing arm part 20. In this way, when the swing arm part 20 rotates, one end of the first cam 210 rubs against the second cam 30 to drive the damping part 32 to deform and generate a damping force. The other end of the first cam 210 can move toward the bracket 4 to contact the bracket 4 and can rotate relative to the bracket 4, so that friction is generated between the first cam 210 and the bracket 4. That is, when the first cam 210 rotates, it needs to overcome the friction between the second cam 30 and the bracket 4, thereby increasing the torque of the hinge structure and improving the opening and closing feel.

[0022] like Figure 1 and Figure 2As shown, according to some embodiments of the present application, the damping mechanism 3 also includes a third cam 34, which is fixedly connected to the rotating shaft; the driving assembly 21 also includes at least two relatively arranged fourth cams 212, which are movably connected to the rotating shaft, and the bracket 4 is located between the first cam 210 and the fourth cam 212, the first cam 210 is corresponding to the second cam 30, and the fourth cam 212 is corresponding to the third cam 34. During the rotation of the swing arm part 20, the first cam 210 and the fourth cam 212 are in contact with the bracket 4 and generate friction.

[0023] In this embodiment, the damping mechanism 3 also includes a third cam 34, the driving assembly 21 includes a first cam 210 and a fourth cam 212, the bracket 4 is arranged between the first cam 210 and the fourth cam 212, and the first cam 210 and the second cam 30 are arranged correspondingly. When the swing arm part 20 rotates, the first cam 210 cooperates with the second cam 30, so that the damping part 32 is compressed, generating deformation energy, and then generating damping force; at the same time, the second cam 30 drives the first cam 210 along the axial direction of the rotating shaft to approach the bracket 4, so that the first cam 210 and the bracket 4 generate friction to increase the damping force. The fourth cam 212 is arranged corresponding to the third cam 34, and the third cam 34 is fixed on the rotating shaft. When the swing arm part 20 rotates, the fourth cam 212 rotates with the swing arm part 20. Through the cooperation between the third cam 34 and the fourth cam 212, the fourth cam 212 drives the third cam 34 to move in the direction away from the bracket 4, and then the third cam drives the rotating shaft to move relative to the damping part 32, further compressing the damping part 32. At the same time, the third cam 34 drives the fourth cam 212 to approach the bracket 4 along the axial direction of the rotating shaft, so that the fourth cam 212 and the bracket 4 generate friction, thereby increasing the damping force.

[0024] According to one embodiment of the present application, along the axial direction of the rotating shaft, the first cam 210 and the fourth cam 212 are each provided with a limiting protrusion 22 on the end facing away from the bracket 4, and the second cam 30 and the third cam 34 are each provided with a limiting recess 36 on the side facing the bracket 4, and the limiting protrusion 22 moves in coordination with the limiting recess 36.

[0025] In this embodiment, the first cam 210 and the fourth cam 212 are both provided with a limiting protrusion 22 on the end facing away from the bracket 4, and the second cam 30 and the third cam 34 are both provided with a limiting recess 36 on the side facing the bracket 4. The movement of the second cam 30 and the third cam 34 is realized by the coordinated movement between the limiting protrusion 22 and the limiting recess 36, and then the damping part 32 is driven by the second cam 30 and the third cam 34 to generate a damping force. At the same time, the friction between the first cam 210 and the bracket 4 is achieved by the force of the second cam 30 on the first cam 210, and the friction between the fourth cam 212 and the bracket 4 is generated by the driving of the fourth cam 212 by the third cam 34.

[0026] That is, when the first cam 210 rotates, it not only overcomes the frictional resistance between the limiting recess 36 on the second cam 30 and the limiting protrusion 22 on the first cam 210, but also overcomes the frictional torque between the first cam 210 and the end surface of the bracket 4. This increases the torque of the hinge structure, improves the damping force of the hinge structure, and thus improves the opening and closing feel. Correspondingly, when the fourth cam 212 rotates, it not only overcomes the frictional resistance between the limiting recess 36 on the third cam 34 and the limiting protrusion 22 on the fourth cam 212, but also overcomes the frictional resistance between the fourth cam 212 and the end surface of the bracket 4, thereby increasing the torque of the hinge structure.

[0027] In the process of rotation of the swing arm part 20, the limiting protrusion 22 and the limiting recess 36 exit the mating state, so that the first cam 210 drives the second cam 30 to move away from the bracket 4, and the third cam 34 drives the fourth cam 212 to move toward the bracket 4.

[0028] In a specific application, when the hinge structure is in a folded state, or in a non-hovering state during the unfolding process and the folding process, at least one of the first cam 210 and the fourth cam 212 contacts the bracket 4 to reduce the gap between the first cam 210, the fourth cam 212 and the bracket 4, making the structure compact.

[0029] It should be noted that the end of the first cam 210 facing away from the bracket 4 and the end of the fourth cam 212 facing away from the bracket 4 are both provided with at least one limiting protrusion 22. Along the axial direction of the rotating shaft, the end of the first cam 210 facing away from the bracket 4 and the end of the fourth cam 212 facing away from the bracket 4 are also provided with at least one recess, and the recess is adjacent to the limiting protrusion 22.

[0030] At the same time, one end of the second cam 30 is provided with a limiting recess 36 and is also provided with at least one convex position. Along the circumference of the rotating shaft, the limiting recess 36 and the convex position are adjacently arranged.

[0031] In this way, when the limiting recess 36 and the limiting protrusion 22 are in a limiting matching state, the limiting protrusion 22 is located in the limiting recess 36, and the protrusion is located in the recess; during the rotation of the swing arm assembly 2, the limiting protrusion 22 moves from the limiting recess 36 to the protrusion, exits the limiting matching state, and then drives the damping mechanism 3 to move, so that at least a part of the damping part 32 is deformed, thereby increasing the damping force of the movement, so that the hinge structure has a hovering effect.

[0032] In a specific application, along the axial direction of the rotating shaft, a plurality of limiting protrusions 22 are provided on both the end of the first cam 210 facing away from the bracket 4 and the end of the fourth cam 212 facing away from the bracket 4. Along the circumference of the rotating shaft, recesses are formed between adjacent limiting protrusions 22. Correspondingly, a plurality of limiting recesses 36 are provided on the end of the second cam 30 facing toward the bracket 4 and the end of the third cam 34 facing toward the bracket 4. Along the circumference of the rotating shaft, convex positions are formed between adjacent limiting recesses 36.

[0033] like Figure 3 As shown, according to some embodiments of the present application, the swing arm assembly 2 also includes: a first connecting shaft 23, the swing arm portion 20, the first cam 210 and the fourth cam 212 are all sleeved on the first connecting shaft 23, and the swing arm portion 20 drives the first cam 210 and the fourth cam 212 to rotate around the rotating shaft through the first connecting shaft 23, and along the axial direction of the first connecting shaft 23, the first cam 210 and the fourth cam 212 are movably connected to the first connecting shaft 23.

[0034] In this embodiment, the swing arm assembly 2 further includes a first connecting shaft 23. The swing arm portion 20, the first cam 210, and the fourth cam 212 are all sleeved on the first connecting shaft 23 and fixed relative to the first connecting shaft 23 along the circumference of the first connecting shaft 23. In this way, the swing arm portion 20 can drive the first cam 210 and the fourth cam 212 to rotate about the rotation axis. The first cam 210 and the fourth cam 212 are able to move axially along the first connecting shaft 23. Therefore, during the process of the first cam 210 and the fourth cam 212 rotating about the rotation axis, they can undergo axial displacement, thereby contacting and generating friction with the bracket 4, thereby increasing the torque of the hinge structure.

[0035] According to one embodiment of the present application, the hinge structure further includes: a limiting portion 24, which is provided on the first connecting shaft 23, and the limiting portion 24 is located on the side of the first cam 210 away from the fourth cam 212, and the side of the fourth cam 212 away from the first cam 210.

[0036] In this embodiment, a limiting portion 24 is provided on the first connecting shaft 23, and a limiting portion 24 is provided on the side of the first cam 210 away from the fourth cam 212, and on the side of the fourth cam 212 away from the first cam 210, for limiting the axial displacement of the first cam 210 and the fourth cam 212 along the first connecting shaft 23, so as to prevent the first cam 210 and the fourth cam 212 from falling off the first connecting shaft 23.

[0037] In a specific application, the swing arm portion 20 includes a connecting portion that is sleeved on the first connecting shaft 23. The first cam 210 and the fourth cam 212 are located on both sides of the connecting portion. The limiting portion 24 includes a retaining spring that is secured to the first connecting shaft 23. Specifically, the first connecting shaft 23 includes a square shaft.

[0038] According to some embodiments of the present application, the hinge structure also includes: a synchronization mechanism 5, at least a portion of the synchronization mechanism 5 is provided on the fourth cam 212, and in the two relatively arranged fourth cams 212, part of the synchronization mechanism 5 on one fourth cam 212 is connected to part of the synchronization mechanism 5 on the other fourth cam 212, and the two relatively arranged swing arm parts 20 rotate synchronously through the synchronization mechanism 5.

[0039] In this embodiment, the hinge structure also includes a synchronization mechanism 5, at least a portion of which is arranged on the fourth cam 212. In the two fourth cams 212 arranged opposite to each other, part of the synchronization mechanism 5 on one fourth cam 212 is connected to part of the synchronization mechanism 5 on the other fourth cam 212, so that the two swing arm parts 20 rotate synchronously through the synchronization mechanism 5, thereby ensuring the reliability of the hinge structure when unfolding or folding.

[0040] In addition, by integrating the synchronization mechanism 5 with the drive assembly 21, the length occupied by the synchronization mechanism 5 in the axial direction is reduced, thereby improving the space utilization of the hinge structure. In this way, more damping mechanisms 3 can be set on the hinge structure, thereby improving the damping force of the damping mechanism 3.

[0041] It can be understood that since at least a portion of the synchronization mechanism 5 is arranged on two relatively arranged fourth cams 212, and the partial synchronization mechanism 5 on one fourth cam 212 and the partial synchronization mechanism 5 on the other fourth cam 212 are arranged relatively, at least a portion of the synchronization mechanism 5 does not occupy the axial length alone, which shortens the space occupied by the synchronization mechanism 5 in the axial direction, improves the space utilization of the hinge structure, and can place more damping mechanisms 3 to increase the damping force of the hinge structure.

[0042] like Figure 1 and Figure 3 As shown, according to some embodiments of the present application, the synchronization mechanism 5 includes a first tooth portion 50 and a second tooth portion 51, and the first tooth portion 50 and the second tooth portion 51 are respectively arranged on the oppositely arranged fourth cam 212, and the first tooth portion 50 and the second tooth portion 51 are meshed with each other.

[0043] In this embodiment, the synchronization mechanism 5 includes a first tooth portion 50 and a second tooth portion 51. In the two relatively arranged fourth cams 212, the first tooth portion 50 is arranged on one fourth cam 212, and the second tooth portion 51 is arranged on the other fourth cam 212. The first tooth portion 50 and the second tooth portion 51 are directly engaged. On the one hand, the synchronous movement of the two swing arm assemblies 2 is realized, and the smoothness and reliability of the movement are improved. On the other hand, it can also reduce the number of components of the synchronization mechanism 5, thereby reducing the overall volume of the synchronization mechanism 5 and increasing the space utilization of the hinge structure.

[0044] like Figure 1As shown, according to some embodiments of the present application, the synchronization mechanism 5 also includes: a first gear 52 and a second gear 53, which are arranged between the first tooth portion 50 and the second tooth portion 51, the first gear 52 and the second gear 53 are meshed with each other, the first tooth portion 50 and the first gear 52 are meshed, and the second gear 53 is meshed with the second tooth portion 51.

[0045] In this embodiment, the synchronization mechanism 5 also includes a first gear 52 and a second gear 53, and the first gear 52 and the second gear 53 are engaged in transmission. The first tooth portion 50 is engaged in transmission with the first gear 52, and the second tooth portion 51 is engaged in transmission with the second gear 53, thereby realizing the synchronous rotation of the two relatively arranged swing arm portions 20, and by arranging the tooth portion on the drive assembly 21, the number of gear structures is reduced and the manufacturing cost is reduced.

[0046] It can be understood that the rotation axes of the first gear 52 and the second gear 53 are in the same direction as the axis of the shaft portion 1 .

[0047] According to some embodiments of the present application, one of the two oppositely disposed fourth cams 212 is an integral structure with the first tooth portion 50 , and the other is an integral structure with the second tooth portion 51 .

[0048] In this embodiment, one of the two oppositely arranged fourth cams 212 is an integral structure with the first tooth portion 50, and the other is an integral structure with the second tooth portion 51, which improves the connection strength and reliability of the fourth cam 212 and the first tooth portion 50 and the second tooth portion 51. At the same time, it can also reduce the space occupied by the first tooth portion 50 and the second tooth portion 51, and further reduce the axial length occupied by the synchronization mechanism 5 on the rotating shaft.

[0049] In a specific application, in the two fourth cams 212 arranged opposite to each other, a portion of one fourth cam 212 is constructed as the first tooth portion 50, and a portion of the other fourth cam 212 is constructed as the second tooth portion 51, further reducing the space occupied by the first tooth portion 50 and the second tooth portion 51.

[0050] Furthermore, among the two fourth cams 212 arranged opposite to each other, one fourth cam 212 is manufactured integrally with the first tooth portion 50 , and the other fourth cam 212 is manufactured integrally with the second tooth portion 51 .

[0051] like Figure 2 As shown, according to some embodiments of the present application, the damping part 32 includes: a baffle 322, which is fixed to the rotating shaft; a first elastic member 323, which is sleeved on one of the at least two rotating shafts, and one end of the first elastic member 323 is in contact with the second cam 30, and the other end is in contact with the baffle 322; a second elastic member 324, which is sleeved on the other rotating shaft of the at least two rotating shafts, and one end of the second elastic member 324 is in contact with the second cam 30, and the other end is in contact with the baffle 322.

[0052] In this embodiment, the damping portion 32 includes a baffle 322, a first elastic member 323, and a second elastic member 324. The first elastic member 323 is mounted on one rotating shaft, and the second elastic member 324 is mounted on another rotating shaft. The baffle 322 is fixed to the rotating shaft and is located at one end of the first elastic member 323 and the second elastic member 324 away from the second cam 30, thereby limiting the position of the first elastic member 323 and the second elastic member 324. The provision of the baffle 322 facilitates the assembly of the first elastic member 323 and the second elastic member 324. At the same time, when the third cam 34 drives the shaft portion 1 to move, the baffle 322 fixed to the rotating shaft can further squeeze the first elastic member 323 and the second elastic member 324, thereby increasing the deformation of the first elastic member 323 and the second elastic member 324.

[0053] Furthermore, in the hinge structure proposed in this application, the first elastic member 323 and the second elastic member 324 are disposed on the outside of the swing arm assembly 2, eliminating the need for a damping member in the middle of the swing arm assembly 2. Specifically, there is no need for a damping member between the first cam 210 and the fourth cam 212. This reduces the axial length of the second cam 30 and improves the space utilization of the hinge structure. Furthermore, by applying a compressive force to both axial ends of the first and second elastic members 323, 324, the deformation of the first and second elastic members 323, 324 is increased, thereby enhancing the damping force.

[0054] Specifically, the at least two rotating shafts include a first rotating shaft 10 and a second rotating shaft 12 , the first elastic member 323 is sleeved on the first rotating shaft 10 , the second elastic member 324 is sleeved on the second rotating shaft 12 , and the baffle 322 is clamped on the first rotating shaft 10 and the second rotating shaft 12 .

[0055] It will be appreciated that, driven by the swing arm 20, the first cam 210 and the fourth cam 212 rotate about the shaft 1, thereby driving the second cam 30 and the third cam 34 to move, causing the third cam 34 to move away from the bracket 4. Since the third cam 34 is fixed to the shaft 1, it drives the shaft 1 away from the bracket 4 and away from the second cam 30. Simultaneously, driven by the swing arm 20, the second cam 30 moves away from the bracket 4. Since the second cam 30 is movably mounted on the rotating shaft, it can move along the rotating shaft. Thus, the third cam 34 drives the rotating shaft to move relative to the second cam 30. Driven by the rotating shaft, the baffle 322 moves toward the second cam 30, generating a compressive force on the first and second elastic members 323 and 324, causing them to deform. Under the action of the first cam 210, the second cam 30 moves toward the first elastic member 323 and the second elastic member 324, and can generate an extrusion force on the first elastic member 323 and the second elastic member 324. Then, under the joint action of the third cam 34 and the second cam 30, the damping force generated by the first elastic member 323 and the second elastic member 324 is increased, thereby improving the damping effect of the damping mechanism 3.

[0056] Furthermore, one end of the bracket 4 is sleeved on the first rotating shaft 10, and the other end is sleeved on the second rotating shaft 12, so that in the two oppositely arranged hinge structures, the two oppositely arranged first cams 210 and the two oppositely arranged fourth cams 212 can both contact the bracket 4.

[0057] like Figure 2 As shown, according to some embodiments of the present application, the damping part 32 also includes: a second connecting shaft 325, which is movably connected to the second cam 30; a third elastic member 326, which is located between the first elastic member 323 and the second elastic member 324, and the third elastic member 326 is sleeved on the second connecting shaft 325, and one end of the third elastic member 326 is in contact with the second cam 30, and the other end is in contact with the baffle 322.

[0058] In this embodiment, the damping part 32 also includes a third elastic member 326, which is arranged between the first elastic member 323 and the second elastic member 324, wherein a second connecting shaft 325 is connected between the second cam 30 and the baffle 322, and the third elastic member 326 is sleeved on the second connecting shaft 325 and can move along the second connecting shaft 325, thereby realizing deformation together with the first elastic member 323 and the second elastic member 324 to increase the damping force.

[0059] The second connecting shaft 325 is movably connected to the second cam 30 , and the second connecting shaft 325 is fixedly connected to the baffle 322 , so that when the third cam 34 drives the shaft 1 to move, the third elastic member 326 can move along the axial direction of the second connecting shaft 325 .

[0060] In a specific application, the first elastic member 323, the second elastic member 324, and the third elastic member 326 are springs, and the baffle 322 is a retaining spring. The present application applies compression in both axial directions along the spring. For one spring, the deformation of the spring in the damping mechanism 3 proposed in the present application is twice that of the spring in the related art, thereby significantly improving the damping force compared to the related art.

[0061] like Figure 1 As shown, according to some embodiments of the present application, the damping mechanism 3, the synchronization mechanism 5, the swing arm assembly 2 and the driving assembly 21 constitute a damping module 6, the number of the damping modules 6 is at least three, and at least three damping modules 6 are arranged at axial intervals along the rotating shaft to generate damping force through at least three damping modules 6.

[0062] In this embodiment, the damping mechanism 3, the synchronization mechanism 5, the swing arm assembly 2, and the drive assembly 21 constitute a damping module 6. The number of damping modules 6 is at least three. The provision of at least three damping modules 6 increases the damping force of the hinge structure. Furthermore, by providing at least three damping modules 6, the damping modules 6 are standardized, and components within multiple damping modules 6 are interchangeable, thereby improving installation convenience and part replaceability.

[0063] In a specific application, the number of the damping modules 6 is three, that is, the hinge structure has three damping mechanisms 3 , three synchronization mechanisms 5 , three swing arm assemblies 2 and three driving assemblies 21 .

[0064] According to some embodiments of the present application, an electronic device is proposed, including: a hinge structure as proposed in any of the above embodiments.

[0065] In this embodiment, the electronic device includes the hinge structure proposed in any of the above embodiments and therefore has all the beneficial effects of the hinge structure.

[0066] In practical applications, the hinge structure proposed in this application features standardized structural components, offering excellent interchangeability and installation. Three damping modules 6 are employed, each with three springs to increase torque. Furthermore, the damping mechanism 3 is optimized. In addition to the friction between the limiting protrusion 22 of the drive assembly 21 and the limiting recess 36 of the damping portion 32, friction is also increased between the drive assembly 21 and the bracket 4 via a friction surface, thereby increasing the torque of the hinge structure.

[0067] Specifically, one of the at least two swing arm portions 20 is connected to the upper door panel, and the other is connected to the lower door panel. When the hinge structure folds, the upper and lower door panels rotate accordingly. The swing arm assembly 2 is connected via a synchronization mechanism 5, so that the upper and lower door panels rotate at the same angle and speed. When the swing arm assembly 2 rotates, the drive assembly 21 rotates together. The limiting protrusions 22 on the first cam 210 and the limiting protrusions 22 on the fourth cam 212 rotate and squeeze the second cam 30 and the third cam 34. The second cam 30 squeezes the spring to the right, and the third cam 34 squeezes the shaft shoulder to the left, driving the rotating shaft to move left. The leftward movement of the rotating shaft drives the baffle 322 to the left, and the baffle 322 squeezes the spring to the left. Each spring is subjected to pressure from both the left and right sides simultaneously, which is twice the pressure generated by the spring when the hinge rotates the same angle in the past. After the spring generates pressure, it applies it in reverse to the second cam 30 and the third cam 34, so that the friction between the second cam 30 and the first cam 210, the third cam 34 and the fourth cam 212 increases when they rotate, thereby increasing the torque of the entire hinge structure.

[0068] Furthermore, the first cam 210 and the fourth cam 212 are designed separately from the swing arm part 20, connected by a square shaft, and fixed at both ends with a retaining spring, so that the first cam 210 and the fourth cam 212 can only move axially of the square shaft relative to the swing arm part 20 and cannot rotate around the square shaft. When the hinge structure is folded, the door panel rotates and drives the first cam 210 and the fourth cam 212 to rotate. When the first cam 210 and the fourth cam 212 rotate, they are squeezed in the opposite direction by the second cam 30 and the third cam 34, resulting in a large friction force. In addition to the friction between the first cam 210 and the second cam 30, since the first cam 210 and the fourth cam 212 can move axially on the square shaft, when the first cam 210 and the fourth cam 212 are squeezed and contacted with the bracket 4, end surface friction is generated between the first cam 210 and the fourth cam 212 and the bracket 4. When the hinge structure rotates, in addition to overcoming the torque generated by the frictional resistance of the first cam 210 and the second cam 30, and the fourth cam 212 and the third cam 34, it also has to overcome the friction torque generated by the end surface friction between the first cam 210 and the bracket 4, and the fourth cam 212 and the bracket 4, thereby increasing the hinge torque.

[0069] It should be noted that electronic devices include mobile phones, tablets, laptops, e-books, learning machines, etc.

[0070] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0071] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A hinge structure, characterized in that: include: A shaft portion, comprising at least two rotating shafts; A swing arm assembly, the swing arm assembly comprising at least two oppositely disposed swing arm portions; a driving assembly, the driving assembly comprising at least two first cams arranged opposite to each other, the first cams being movably connected to the rotating shaft, and the at least two swing arms being connected to the rotating shaft via the at least two first cams; a damping mechanism, the damping mechanism comprising a second cam and a damping portion connected to each other, the second cam and the damping portion being movably connected to the rotating shaft, the first cam and the second cam being arranged relative to each other and moving in coordination; The bracket is provided on the rotating shaft, and along the axial direction of the rotating shaft, the bracket is located on the side of the first cam away from the second cam, The swing arm portion is movably connected to the first cam along the axial direction of the rotating shaft. When the swing arm portion rotates, the first cam pushes the damping portion to move via the second cam, causing at least a portion of the damping portion to deform. The second cam pushes the first cam to contact the bracket, so that friction is generated between the first cam and the bracket. The damping mechanism further includes a third cam, and the third cam is fixedly connected to the rotating shaft; The drive assembly further includes at least two fourth cams arranged opposite to each other, the fourth cams being movably connected to the rotating shaft, the bracket being located between the first cam and the fourth cam, the first cam being arranged corresponding to the second cam, and the fourth cam being arranged corresponding to the third cam, and during the rotation of the swing arm portion, the first cam and the fourth cam both contact the bracket and generate friction; The hinge structure further includes: a first connecting shaft, the swing arm portion, the first cam, and the fourth cam are all sleeved on the first connecting shaft, the swing arm portion drives the first cam and the fourth cam to rotate around the rotating shaft via the first connecting shaft, and the first cam and the fourth cam are movably connected to the first connecting shaft along the axial direction of the first connecting shaft; The first connecting shaft comprises a square shaft.

2. The hinge structure according to claim 1, characterized in that: Along the axial direction of the rotating shaft, the first cam and the fourth cam are both provided with a limiting protrusion on one end away from the bracket, and the second cam and the third cam are both provided with a limiting recess on the side facing the bracket, and the limiting protrusion and the limiting recess move in coordination.

3. The hinge structure according to claim 1, characterized in that: Also includes: A limiting portion is provided on the first connecting shaft, and the limiting portion is located on a side of the first cam away from the fourth cam, and on a side of the fourth cam away from the first cam.

4. The hinge structure according to claim 1, characterized in that: Also includes: A synchronization mechanism, wherein at least a portion of the synchronization mechanism is provided on the fourth cam. In the two relatively arranged fourth cams, a portion of the synchronization mechanism on one of the fourth cams is connected to a portion of the synchronization mechanism on the other fourth cam, and the two relatively arranged swing arm portions rotate synchronously through the synchronization mechanism.

5. The hinge structure according to claim 4, characterized in that: The synchronization mechanism includes a first tooth portion and a second tooth portion, wherein the first tooth portion and the second tooth portion are respectively provided on two fourth cams arranged opposite to each other, and the first tooth portion and the second tooth portion are meshed with each other.

6. The hinge structure according to claim 5, characterized in that: The synchronization mechanism further comprises: The first gear and the second gear are arranged between the first tooth portion and the second tooth portion, the first gear and the second gear are meshed with each other, the first tooth portion is meshed with the first gear, and the second gear is meshed with the second tooth portion.

7. The hinge structure according to claim 5, characterized in that: One of the two oppositely arranged fourth cams is an integral structure with the first tooth portion, and the other is an integral structure with the second tooth portion.

8. The hinge structure according to any one of claims 1 to 7, characterized in that: The damping part includes: a baffle, fixed to the rotating shaft; a first elastic member, sleeved on one of the at least two rotating shafts, wherein one end of the first elastic member contacts the second cam, and the other end contacts the baffle; The second elastic member is sleeved on the other of the at least two rotating shafts. One end of the second elastic member contacts the second cam, and the other end contacts the baffle.

9. The hinge structure according to claim 8, characterized in that: The damping part further includes: a second connecting shaft, the second connecting shaft being movably connected to the second cam; The third elastic member is located between the first elastic member and the second elastic member. The third elastic member is sleeved on the second connecting shaft. One end of the third elastic member contacts the second cam, and the other end contacts the baffle.

10. The hinge structure according to any one of claims 4 to 7, characterized in that: The damping mechanism, the synchronization mechanism, the swing arm assembly and the driving assembly constitute a damping module. The number of the damping modules is at least three, and the at least three damping modules are arranged at intervals along the axial direction of the rotating shaft to generate damping force through the at least three damping modules.

11. An electronic device, characterized in that: include: The hinge structure according to any one of claims 1 to 10.

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