CN116201808A

CN116201808A - Hinge structure and electronic device

Info

Publication number: CN116201808A
Application number: CN202310149868.7A
Authority: CN
Inventors: 周秋雨; 周龙; 张金阁
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-06-02

Abstract

The application discloses hinge structure and electronic equipment, hinge structure includes: a shaft portion including at least two rotation shafts; the swing arm assembly comprises at least two swing arm parts which are oppositely arranged; the driving assembly comprises at least two first cams which are oppositely arranged, the first cams are movably connected with the rotating shaft, and the at least two swing arm parts are connected with the rotating shaft through the at least two first cams; the damping mechanism comprises a second cam and a damping part which are connected, the second cam and the damping part are both movably connected with the rotating shaft, and the first cam and the second cam are oppositely arranged and move in a matched manner; the support is arranged on the rotating shaft, is positioned on one side, deviating from the second cam, of the first cam, wherein the swing arm part is movably connected with the first cam along the axial direction of the rotating shaft, and under the condition that the swing arm part rotates, the first cam pushes the damping part to move through the second cam so that at least one part of the damping part is deformed, and the second cam pushes the first cam to contact with the support so that friction is generated between the first cam and the support.

Description

Hinge structure and electronic device

Technical Field

The application belongs to the technical field of electronic equipment, and particularly relates to a hinge structure and electronic equipment.

Background

In the related art, the hinge structure is generally composed of a rotating shaft, a swing arm assembly arranged on the rotating shaft and a damping mechanism. Wherein, in the swing arm assembly motion process, the swing arm assembly drives damping mechanism along axial motion, realizes the hover of hinge structure through the frictional force between swing arm assembly and the damping mechanism, and this kind of design damping force is not enough.

Disclosure of Invention

The application aims to provide a hinge structure and electronic equipment, and at least solves the problem of insufficient damping force of the hinge structure.

In order to solve the technical problems, the application is realized as follows:

in a first aspect, an embodiment of the present application proposes a hinge structure, including: a shaft portion including at least two rotation shafts; the swing arm assembly comprises at least two swing arm parts which are oppositely arranged; the driving assembly comprises at least two oppositely arranged first cams, the first cams are movably connected with the rotating shaft, and the at least two swing arm parts are connected with the rotating shaft through the at least two first cams; the damping mechanism comprises a second cam and a damping part which are connected, the second cam and the damping part are both movably connected with the rotating shaft, and the first cam and the second cam are oppositely arranged and move in a matched manner; the support is arranged on the rotating shaft, is positioned on one side, deviating from the second cam, of the first cam, wherein the swing arm part is movably connected with the first cam along the axial direction of the rotating shaft, and under the condition that the swing arm part rotates, the first cam pushes the damping part to move through the second cam so that at least one part of the damping part is deformed, and the second cam pushes the first cam to contact with the support so that friction is generated between the first cam and the support.

In a second aspect, an embodiment of the present application proposes an electronic device, including: the hinge structure according to any one of the first aspects.

In an embodiment of the present application, the hinge structure includes a shaft portion, a swing arm assembly, a drive assembly, a damping mechanism, and a bracket, the swing arm assembly including at least two oppositely disposed swing arm portions. The driving assembly comprises at least two oppositely arranged first cams, the first cams are movably connected with the rotating shaft, and the swing arm parts are connected with the first cams, so that the swing arm parts can rotate relative to the rotating shaft through the first cams, and the hinge structure is in a folded state, an unfolded state or a hovering state. The damping mechanism comprises a second cam and a damping part which are connected, wherein the second cam is arranged on one side of the first cam, a support is arranged on the other side of the first cam, and the first cam is movably connected with the swing arm part, so that under the condition that the swing arm part rotates, one end of the first cam rubs against the second cam to drive the damping part to deform so as to generate damping force, the other end of the first cam can move towards the support to contact with the support and rotate relative to the support, friction is generated between the first cam and the support, namely, the friction force between the first cam and the second cam needs to be overcome when the first cam rotates, and the friction force between the first cam and the support is further increased, so that the torque of the hinge structure is increased, and the opening and closing hand feeling is improved.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, wherein:

FIG. 1 is a schematic structural view of a hinge structure according to an embodiment of the present application;

FIG. 2 is a partial schematic view of a hinge structure according to an embodiment of the present application;

fig. 3 is an exploded schematic view of a swing arm assembly according to an embodiment of the present application.

Reference numerals:

the device comprises a shaft part 1, a first rotating shaft 10, a second rotating shaft 12, a swing arm assembly 2, a swing arm part 20, a driving assembly 21, a first cam 210, a fourth cam 212, a limit bulge 22, a first connecting shaft 23, a limit part 24, a damping mechanism 3, a second cam 30, a damping part 32, a baffle plate 322, a first elastic piece 323, a second elastic piece 324, a second connecting shaft 325, a third elastic piece 326, a third cam 34, a limit concave 36, a bracket 4, a synchronous mechanism 5, a first gear 50, a second gear 51, a first gear 52, a second gear 53 and a damping module 6.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functionality throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

The features of the terms "first", "second", and the like in the description and in the claims of this application may be used for descriptive or implicit inclusion of one or more such features. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be understood that the terms "upper," "lower," "axial," "circumferential," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description of the present application and for simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

A hinge structure and an electronic device according to an embodiment of the present application are described below with reference to fig. 1 to 3.

As shown in fig. 1 and 2, a hinge structure according to some embodiments of the present application includes: a shaft portion 1 including at least two rotation shafts; the swing arm assembly 2, the swing arm assembly 2 includes at least two swing arm parts 20 oppositely arranged; the driving assembly 21, the driving assembly 21 includes at least two first cams 210 arranged oppositely, the first cams 210 are movably connected with the rotating shaft, and at least two swing arm parts 20 are connected with the rotating shaft through at least two first cams 210; the damping mechanism 3, the damping mechanism 3 comprises a second cam 30 and a damping part 32 which are connected, the second cam 30 and the damping part 32 are both movably connected with the rotating shaft, and the first cam 210 and the second cam 30 are oppositely arranged and move in a matched manner; the support 4 is arranged on the rotating shaft, along the axial direction of the rotating shaft, the support 4 is positioned on one side of the first cam 210, which is away from the second cam 30, wherein the swing arm part 20 is movably connected with the first cam 210, under the condition that the swing arm part 20 rotates, the first cam 210 pushes the damping part 32 to move through the second cam 30, at least one part of the damping part 32 is deformed, and the second cam 30 pushes the first cam 210 to contact the support 4, so that friction is generated between the first cam 210 and the support 4.

In the embodiment of the present application, the hinge structure includes a shaft portion 1, a swing arm assembly 2, a driving assembly 21, a damping mechanism 3, and a bracket 4, and the swing arm assembly 2 includes at least two oppositely disposed swing arm portions 20. The driving assembly 21 includes at least two first cams 210 disposed opposite to each other, the first cams 210 are movably connected with the rotation shaft, and the swing arm portion 20 is connected with the first cams 210, so that the swing arm portion 20 can rotate relative to the rotation shaft by 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 portion 32 that are connected, one side of the first cam 210 is provided with the second cam 30, the other side of the first cam 210 is provided with the bracket 4, and the first cam 210 is movably connected with the swing arm portion 20, so that under the condition that the swing arm portion 20 rotates, one end of the first cam 210 rubs against the second cam 30 to drive the damping portion 32 to deform to generate damping force, and the other end of the first cam 210 can move towards the bracket 4 to contact with the bracket 4 and 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, the friction force between the first cam 210 and the second cam 30 needs to be overcome, and the friction force between the first cam and the bracket 4 needs to be overcome, so that the torque of the hinge structure is increased, and the feel is improved.

As shown in fig. 1 and 2, according to some embodiments of the present application, the damping mechanism 3 further includes a third cam 34, where the third cam 34 is fixedly connected to the rotating shaft; the driving assembly 21 further includes at least two fourth cams 212 disposed opposite to each other, the fourth cams 212 are movably connected to the rotating shaft, the bracket 4 is located between the first cams 210 and the fourth cams 212, the first cams 210 are disposed corresponding to the second cams 30, the fourth cams 212 are disposed corresponding to the third cams 34, and during the rotation of the swing arm portion 20, the first cams 210 and the fourth cams 212 are both in contact with the bracket 4 and generate friction.

In this embodiment, the damping mechanism 3 further includes a third cam 34, the driving assembly 21 includes a first cam 210 and a fourth cam 212, the bracket 4 is disposed between the first cam 210 and the fourth cam 212, and the first cam 210 is disposed corresponding to the second cam 30, and in the case that the swing arm portion 20 rotates, the first cam 210 cooperates with the second cam 30, so that the damping portion 32 is compressed, deformation energy is generated, and thus a damping force is generated; meanwhile, the second cam 30 drives the first cam 210 to approach the bracket 4 in the axial direction of the rotation shaft, so that the first cam 210 generates friction with the bracket 4 to increase the damping force. The fourth cam 212 is correspondingly arranged with the third cam 34, the third cam 34 is fixed on the rotating shaft, under the condition that the swing arm part 20 rotates, the fourth cam 212 rotates along with the swing arm part 20, the fourth cam 212 drives the third cam 34 to move in a direction away from the support 4 through cooperation between the third cam 34 and the fourth cam 212, the third cam drives the rotating shaft to move relative to the damping part 32, the damping part 32 is further compressed, and meanwhile, the third cam 34 drives the fourth cam 212 to move close to the support 4 along the axial direction of the rotating shaft, friction is generated between the fourth cam 212 and the support 4, and the damping force is increased.

According to one embodiment of the present application, along the axial direction of the rotating shaft, the ends of the first cam 210 and the fourth cam 212, which are away from the bracket 4, are provided with limiting protrusions 22, and the sides of the second cam 30 and the third cam 34, which are towards the bracket 4, are provided with limiting recesses 36, and the limiting protrusions 22 move in cooperation with the limiting recesses 36.

In this embodiment, the ends of the first cam 210 and the fourth cam 212 facing away from the bracket 4 are provided with the limit protrusions 22, the sides of the second cam 30 and the third cam 34 facing toward the bracket 4 are provided with the limit recesses 36, the movement of the second cam 30 and the third cam 34 is realized through the matching movement between the limit protrusions 22 and the limit recesses 36, the damping part 32 is driven by the second cam 30 and the third cam 34 to generate damping force, meanwhile, the friction between the first cam 210 and the bracket 4 is realized through the acting force of the second cam 30 to the first cam 210, and the friction between the fourth cam 212 is generated through the driving of the third cam 34 to the bracket 4.

That is, when the first cam 210 rotates, the friction force between the first cam 210 and the end surface of the bracket 4 is overcome in addition to the friction resistance between the limit recess 36 on the second cam 30 and the limit protrusion 22 on the first cam 210, so as to increase the torque of the hinge structure, promote the damping force of the hinge structure, and further promote the opening and closing hand feeling. Accordingly, when the fourth cam 212 rotates, in addition to overcoming the frictional resistance between the limit recess 36 on the third cam 34 and the limit projection 22 on the fourth cam 212, the frictional resistance between the fourth cam 212 and the end surface of the bracket 4 is overcome, so that the torque of the hinge structure is increased.

Wherein, during the rotation of the swing arm portion 20, the limit protrusion 22 and the limit recess 36 exit from 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.

In a specific application, in the case where the hinge structure is in a folded state, or in a non-hovering state during unfolding and folding, at least one of the first cam 210 and the fourth cam 212 is in contact with the bracket 4 to reduce a gap between the first cam 210, the fourth cam 212 and the bracket 4, so that the structure is compact.

It should be noted that, at least one limiting protrusion 22 is disposed at an end of the first cam 210 facing away from the support 4 and an end of the fourth cam 212 facing away from the support 4, and at least one recess is disposed at an end of the first cam 210 facing away from the support 4 and an end of the fourth cam 212 facing away from the support 4 along an axial direction of the rotating shaft, where the recess is adjacent to the limiting protrusion 22.

Meanwhile, one end of the second cam 30, provided with a limiting recess 36, is also provided with at least one boss, and the limiting recess 36 and the boss are arranged along the circumferential direction of the rotating shaft.

Thus, when the limit concave 36 and the limit convex 22 are in a limit fit state, the limit convex 22 is positioned in the limit concave 36, and the convex is positioned in the concave; in the rotating process of the swing arm assembly 2, the limit protrusion 22 moves from the limit recess 36 to the convex position, and exits from the limit matching state, so that the damping mechanism 3 is driven to move, at least one part of the damping portion 32 is deformed, the moving damping force is further increased, and the hinge structure has a hovering effect.

In a specific application, along the axial direction of the rotating shaft, one end of the first cam 210, which faces away from the bracket 4, and one end of the fourth cam 212, which faces away from the bracket 4, are provided with a plurality of limiting protrusions 22, and a concave position is formed between adjacent limiting protrusions 22 along the circumferential direction of the rotating shaft. Correspondingly, a plurality of limiting depressions 36 are arranged at one end of the second cam 30 facing the bracket 4 and one end of the third cam 34 facing the bracket 4, and a convex position is formed between adjacent limiting depressions 36 along the circumferential direction of the rotating shaft.

As shown in fig. 3, the swing arm assembly 2 further includes, according to some embodiments of the present application: the first connecting shaft 23, the swing arm part 20, the first cam 210 and the fourth cam 212 are all sleeved on the first connecting shaft 23, the swing arm part 20 drives the first cam 210 and the fourth cam 212 to rotate around the rotating shaft through the first connecting shaft 23, and the first cam 210 and the fourth cam 212 are movably connected with the first connecting shaft 23 along the axial direction of the first connecting shaft 23.

In this embodiment, the swing arm assembly 2 further includes a first connecting shaft 23, and the swing arm portion 20, the first cam 210 and the fourth cam 212 are all sleeved on the first connecting shaft 23 and are fixed relative to the first connecting shaft 23 along the circumferential direction of the first connecting shaft 23, so that the swing arm portion 20 can drive the first cam 210 and the fourth cam 212 to rotate around the rotating shafts. The first cam 210 and the fourth cam 212 can move in the axial direction of the first connection shaft 23, so that during the rotation of the first cam 210 and the fourth cam 212 around the rotation shaft, axial displacement can occur, and thus contact with the bracket 4 and friction occurs with the bracket 4, so as to increase the torque of the hinge structure.

According to one embodiment of the present application, the hinge structure further comprises: the limiting part 24 is arranged on the first connecting shaft 23, and the limiting part 24 is positioned on one side of the first cam 210 away from the fourth cam 212 and one side of the fourth cam 212 away from the first cam 210.

In this embodiment, the limiting portion 24 is disposed on the first connecting shaft 23, and 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 are both provided with the limiting portion 24 for limiting displacement of the first cam 210 and the fourth cam 212 in the axial direction of the first connecting shaft 23, so that the first cam 210 and the fourth cam 212 are prevented from falling off from the first connecting shaft 23.

In a specific application, the swing arm portion 20 includes a connecting portion, the connecting portion is sleeved on the first connecting shaft 23, and the first cam 210 and the fourth cam 212 are located on two sides of the connecting portion. The limiting portion 24 includes a clip spring, and the clip spring is disposed on the first connecting shaft 23, specifically, the first connecting shaft 23 includes a square shaft.

According to some embodiments of the present application, the hinge structure further comprises: and the synchronizing mechanism 5, at least a part of the synchronizing mechanism 5 is arranged on the fourth cams 212, and among the two fourth cams 212 which are arranged oppositely, part of the synchronizing mechanism 5 on one fourth cam 212 is connected with part of the synchronizing mechanism 5 on the other fourth cam 212, and the two swinging arm parts 20 which are arranged oppositely synchronously rotate through the synchronizing mechanism 5.

In this embodiment, the hinge structure further includes a synchronizing mechanism 5, at least a part of the synchronizing mechanism 5 is disposed on the fourth cams 212, and among the two fourth cams 212 disposed opposite to each other, a part of the synchronizing mechanism 5 on one fourth cam 212 is connected with a part of the synchronizing mechanism 5 on the other fourth cam 212, so that the two swing arm portions 20 are rotated synchronously by the synchronizing mechanism 5, ensuring the reliability of the hinge structure being unfolded or folded.

In addition, through integrating the synchro mechanism 5 with the drive assembly 21, reduced the length that occupies of synchro mechanism 5 in axial direction to promoted hinge structure's space utilization, like this, can set up more damping mechanism 3 on hinge structure, and then promote damping mechanism 3's damping force.

It can be understood that, since at least a part of the synchronizing mechanism 5 is disposed on the two fourth cams 212 that are disposed oppositely, and a part of the synchronizing mechanism 5 on one fourth cam 212 and a part of the synchronizing mechanism 5 on the other fourth cam 212 are disposed oppositely, at least a part of the synchronizing mechanism 5 does not occupy the axial length alone, the occupied space of the synchronizing mechanism 5 in the axial direction is shortened, the space utilization of the hinge structure is improved, and further more damping mechanisms 3 can be disposed to improve the damping force of the hinge structure.

As shown in fig. 1 and 3, according to some embodiments of the present application, the synchronization mechanism 5 includes a first tooth 50 and a second tooth 51, where the first tooth 50 and the second tooth 51 are respectively provided on a fourth cam 212 disposed opposite to each other, and the first tooth 50 and the second tooth 51 are engaged.

In this embodiment, the synchronization mechanism 5 includes the first tooth portion 50 and the second tooth portion 51, among the two fourth cams 212 that are disposed oppositely, the first tooth portion 50 is disposed on one fourth cam 212, the second tooth portion 51 is disposed 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, the stability and reliability of the movement are improved, on the other hand, the number of parts of the synchronization mechanism 5 can be reduced, the overall volume of the synchronization mechanism 5 can be further reduced, and the space utilization of the hinge structure can be increased.

As shown in fig. 1, according to some embodiments of the present application, the synchronization mechanism 5 further includes: the first gear 52 and the second gear 53 are disposed between the first gear 50 and the second gear 51, the first gear 52 and the second gear 53 are engaged, the first gear 50 and the first gear 52 are engaged, and the second gear 53 is engaged with the second gear 51.

In this embodiment, the synchronizing mechanism 5 further includes a first gear 52 and a second gear 53, the first gear 52 and the second gear 53 are in mesh transmission, the first gear 50 is in mesh transmission with the first gear 52, the second gear 51 is in mesh transmission with the second gear 53, so that synchronous rotation of the two oppositely disposed swing arm portions 20 is achieved, and by providing the gear portions on the driving assembly 21, the number of gear structures is reduced, and the manufacturing cost is reduced.

It will be appreciated that the rotational axes of the first gear 52 and the second gear 53 are in the same direction as the axis of the shaft portion 1.

According to some embodiments of the present application, one of the two oppositely disposed fourth cams 212 is of unitary construction with the first tooth 50 and the other is of unitary construction with the second tooth 51.

In this embodiment, one of the two opposite fourth cams 212 is integrated with the first tooth portion 50, and the other one is integrated with the second tooth portion 51, so that the connection strength and reliability of the fourth cam 212 and the first tooth portion 50 and the second tooth portion 51 are improved, and meanwhile, the occupied space of the first tooth portion 50 and the second tooth portion 51 can be reduced, and the occupied length of the synchronizing mechanism 5 in the axial direction of the rotating shaft is further reduced.

In a specific application, among the two fourth cams 212 disposed oppositely, a part of one fourth cam 212 is configured as the first tooth 50, and a part of the other fourth cam 212 is configured as the second tooth 51, so that the occupation of the space of the first tooth 50 and the second tooth 51 is further reduced.

Further, of the two fourth cams 212 disposed opposite to each other, one fourth cam 212 is integrally manufactured with the first tooth portion 50, and the other fourth cam 212 is integrally manufactured with the second tooth portion 51.

As shown in fig. 2, according to some embodiments of the present application, the damping portion 32 includes: the baffle 322 is fixedly arranged on the rotating shaft; the first elastic member 323 is sleeved on one rotating shaft of the at least two rotating shafts, one end of the first elastic member 323 is contacted with the second cam 30, and the other end of the first elastic member 323 is contacted with the baffle 322; the second elastic member 324 is sleeved on the other rotating shaft of the at least two rotating shafts, one end of the second elastic member 324 contacts with the second cam 30, and the other end contacts with the baffle 322.

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 piece 323 is sleeved on one rotating shaft, the second elastic piece 324 is sleeved on the other rotating shaft, the baffle 322 is fixedly arranged on the rotating shaft, and the baffle 322 is positioned at one end, far away from the second cam 30, of the first elastic piece 323 and the second elastic piece 324, so that limiting of the first elastic piece 323 and the second elastic piece 324 is achieved. Through the setting of baffle 322, can be convenient for the equipment of first elastic component 323 and second elastic component 324, simultaneously, can also drive shaft portion 1 when removing at third cam 34, realize further extrusion to first elastic component 323 and second elastic component 324 through setting firmly in epaxial baffle 322, and then increase the deformation volume of first elastic component 323 and second elastic component 324.

In addition, in the hinge structure provided by the application, the first elastic piece 323 and the second elastic piece 324 are arranged on the outer side of the swing arm assembly 2, and a damping piece is not required to be additionally arranged in the middle of the swing arm assembly 2, namely, the damping piece is not required to be arranged between the first cam 210 and the fourth cam 212, so that the axial length of the second cam 30 is reduced, and the space utilization rate of the hinge structure is improved. Meanwhile, by applying the pressing force to both axial ends of the first elastic member 323 and the second elastic member 324, the deformation amounts of the first elastic member 323 and the second elastic member 324 are increased, and thus the damping force is improved.

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.

It can be appreciated that, under the driving of the swing arm portion 20, the first cam 210 and the fourth cam 212 rotate around the shaft portion 1, and further drive the second cam 30 and the third cam 34 to move, so that the third cam 34 moves in a direction away from the bracket 4, and because the third cam 34 is fixedly arranged on the shaft portion 1, the shaft portion 1 is driven to move in a direction away from the bracket 4 and away from the second cam 30. Meanwhile, the second cam 30 is moved away from the bracket 4 by the driving of the swing arm portion 20, and the second cam 30 is movably provided on the rotation shaft, so that the second cam can move along the rotation shaft. In this way, the third cam 34 drives the rotating shaft to move relative to the second cam 30, and the baffle 322 is driven by the rotating shaft to move towards the second cam 30, so that the first elastic member 323 and the second elastic member 324 can generate extrusion force, and the first elastic member 323 and the second elastic member 324 deform. The second cam 30 moves towards the first elastic member 323 and the second elastic member 324 under the action of the first cam 210, and can generate extrusion force on the first elastic member 323 and the second elastic member 324, so that under the combined 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, and the damping effect of the damping mechanism 3 is further improved.

Further, the bracket 4 is sleeved on the first rotating shaft 10 at one end and sleeved on the second rotating shaft 12 at the other end, 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 be contacted with the bracket 4.

As shown in fig. 2, according to some embodiments of the present application, the damping portion 32 further includes: the second connecting shaft 325, the second connecting shaft 325 is movably connected with the second cam 30; the third elastic member 326 is located between the first elastic member 323 and the second elastic member 324, the third elastic member 326 is sleeved on the second connecting shaft 325, one end of the third elastic member 326 contacts the second cam 30, and the other end contacts the baffle 322.

In this embodiment, the damping portion 32 further includes a third elastic member 326, where the third elastic member 326 is disposed between the first elastic member 323 and the second elastic member 324, and 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, so as to deform together with the first elastic member 323 and the second elastic member 324, thereby increasing the damping force.

The second connecting shaft 325 is movably connected with the second cam 30, and the second connecting shaft 325 is fixedly connected with the baffle 322. So that the third elastic member 326 can be moved in the axial direction of the second connecting shaft 325 when the third cam 34 moves the shaft portion 1.

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 clamp spring. The damping mechanism 3 has the advantages that the damping mechanism is extruded in the axial double direction of the spring, and for one spring, the deformation amount of the spring in the damping mechanism 3 is twice that of the spring in the related art, so that compared with the related art, the damping force is greatly improved.

As shown in fig. 1, 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 damping modules 6, and the number of the damping modules 6 is at least three, and the at least three damping modules 6 are disposed at intervals along the axial direction of the rotating shaft, so as to generate a damping force through the at least three damping modules 6.

In this embodiment, the damping mechanism 3, the synchronizing mechanism 5, the swing arm assembly 2 and the driving assembly 21 constitute a damping module 6, wherein the number of damping modules 6 is at least three, and the provision of at least three damping modules 6 increases the damping force of the hinge structure. Meanwhile, by arranging at least three damping modules 6, the damping modules 6 are standardized, and then components in the damping modules 6 can be interchanged, so that the convenience of installation and the replaceability of parts are improved.

In a specific application, the number of damping modules 6 is three, i.e. the hinge structure has three damping mechanisms 3, three synchronizing mechanisms 5, three swing arm assemblies 2 and three drive assemblies 21.

According to some embodiments of the present application, there is provided an electronic device including: a hinge structure as set forth in any one of the above embodiments.

In this embodiment, the electronic device has all the advantages of the hinge structure because it includes the hinge structure proposed in any of the above embodiments.

In specific application, the hinge structure provided by the application has standardized structural parts and better interchangeability and installability. In addition to the optimized design of the damping mechanism 3, the friction force between the limiting protrusion 22 of the driving component 21 and the limiting recess 36 of the damping portion 32 is increased by the friction surface, so that the torque of the hinge structure is increased.

Specifically, in the at least two swing arm portions 20, one swing arm portion 20 is connected with the upper door plate, the other swing arm portion 20 is connected with the lower door plate, when the hinge structure is folded, the upper door plate and the lower door plate rotate along with each other, and the swing arm assembly 2 is connected through the synchronizing mechanism 5, so that the rotation angles and the rotation speeds of the upper door plate and the lower door plate are the same. When the swing arm assembly 2 rotates, the driving assembly 21 rotates together, the limiting protrusion 22 on the first cam 210 and the limiting protrusion 22 on the fourth cam 212 rotate to press the second cam 30 and the third cam 34, the second cam 30 presses the spring rightwards, the third cam 34 presses the shaft shoulder leftwards to drive the rotating shaft to move leftwards, the rotating shaft moves leftwards to drive the baffle 322 to move leftwards, and the baffle 322 presses the spring leftwards; each spring receives pressure from the left side and the right side simultaneously, and the pressure is 2 times of the pressure generated by the compression of the springs when the hinge rotates by the same angle. The springs generate pressure and then are reversely applied to the second cam 30 and the third cam 34, so that friction force is increased when the second cam 30 and the first cam 210, the third cam 34 and the fourth cam 212 are rotated, thereby increasing torque of the whole hinge structure.

Further, the first cam 210 and the fourth cam 212 are separately designed from the swing arm portion 20 and are connected through a square shaft, and two ends of the first cam 210 and the fourth cam 212 are fixed by adopting snap springs, so that the first cam 210 and the fourth cam 212 can only generate movement in the axial direction of the square shaft relative to the swing arm portion 20 and cannot rotate around the square shaft. When the hinge structure is folded, the door panel rotates to drive the first cam 210 and the fourth cam 212 to rotate, when the first cam 210 and the fourth cam 212 rotate, the first cam 210 and the fourth cam 212 are subjected to backward extrusion by the second cam 30 and the third cam 34, so that larger friction force exists, besides friction exists between the first cam 210 and the second cam 30, the first cam 210 and the fourth cam 212 can axially move on a square shaft, therefore, when the first cam 210 and the fourth cam 212 are extruded to contact with the bracket 4, end face friction is generated between the first cam 210 and the fourth cam 212 and the bracket 4, and when the hinge structure rotates, in addition to the moment generated by overcoming the friction resistance of the first cam 210 and the second cam 30 and the moment generated by the friction of the fourth cam 212 and the third cam 34, the friction moment generated by the end face friction of the first cam 210 and the bracket 4 and the end face friction of the fourth cam 212 and the bracket 4 are overcome, so that the hinge torque is increased.

It should be noted that, the electronic device includes a mobile phone, a tablet computer, a notebook computer, an electronic book, a learning machine, and the like.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A hinge structure, comprising:

a shaft portion including at least two rotation shafts;

the swing arm assembly comprises at least two swing arm parts which are oppositely arranged;

the driving assembly comprises at least two first cams which are oppositely arranged, the first cams are movably connected with the rotating shaft, and the at least two swing arm parts are connected with the rotating shaft through the at least two first cams;

the damping mechanism comprises a second cam and a damping part which are connected, the second cam and the damping part are both movably connected with the rotating shaft, and the first cam and the second cam are oppositely arranged and move in a matched manner;

the bracket is arranged on the rotating shaft, along the axial direction of the rotating shaft, the bracket is positioned on one side of the first cam, which is away from the second cam,

the swing arm part is movably connected with the first cam along the axial direction of the rotating shaft, and under the condition that the swing arm part rotates, the first cam pushes the damping part to move through the second cam so as to deform at least part of the damping part, and the second cam pushes the first cam to contact the support so as to enable friction between the first cam and the support to be generated.

2. The hinge structure according to claim 1, wherein,

the damping mechanism further comprises a third cam, and the third cam is fixedly connected with the rotating shaft;

the driving assembly further comprises at least two fourth cams which are oppositely arranged, the fourth cams are movably connected with the rotating shaft, the support is located between the first cams and the fourth cams, the first cams and the second cams are correspondingly arranged, the fourth cams and the third cams are correspondingly arranged, and in the rotating process of the swing arm part, the first cams and the fourth cams are in contact with the support and generate friction.

3. The hinge structure according to claim 2, wherein, along an axial direction of the rotating shaft, one ends of the first cam and the fourth cam, which are away from the bracket, are provided with limiting protrusions, one sides of the second cam and the third cam, which are toward the bracket, are provided with limiting recesses, and the limiting protrusions move in cooperation with the limiting recesses.

4. The hinge structure of claim 2, further comprising:

the 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 through the first connecting shaft, and the first cam and the fourth cam are movably connected with the first connecting shaft along the axial direction of the first connecting shaft.

5. The hinge structure of claim 4, further comprising:

and the limiting part is arranged on the first connecting shaft and is positioned on one side of the first cam away from the fourth cam and one side of the fourth cam away from the first cam.

6. The hinge structure of claim 2, further comprising:

and at least one part of the synchronizing mechanism is arranged on the fourth cams, among the two fourth cams which are oppositely arranged, part of the synchronizing mechanism on one fourth cam is connected with part of the synchronizing mechanism on the other fourth cam, and the two swing arm parts which are oppositely arranged synchronously rotate through the synchronizing mechanism.

7. The hinge structure according to claim 6, wherein,

the synchronous mechanism comprises a first tooth part and a second tooth part, wherein the first tooth part and the second tooth part are respectively arranged on two fourth cams which are oppositely arranged, and the first tooth part and the second tooth part are meshed.

8. The hinge structure of claim 7, wherein the synchronization mechanism further comprises:

the first gear and the second gear are arranged between the first tooth part and the second tooth part, the first gear is meshed with the second gear, the first tooth part is meshed with the first gear, and the second gear is meshed with the second tooth part.

9. The hinge structure according to claim 7, wherein one of the two oppositely disposed fourth cams is of unitary construction with the first tooth portion and the other is of unitary construction with the second tooth portion.

10. The hinge structure according to any one of claims 1 to 9, characterized in that the damping portion includes:

the baffle is fixedly arranged on the rotating shaft;

the first elastic piece is sleeved on one rotating shaft of the at least two rotating shafts, one end of the first elastic piece is in contact with the second cam, and the other end of the first elastic piece is in contact with the baffle;

the second elastic piece is sleeved on the other rotating shaft of the at least two rotating shafts, one end of the second elastic piece is in contact with the second cam, and the other end of the second elastic piece is in contact with the baffle.

11. The hinge structure according to claim 10, wherein said damping portion further comprises:

the second connecting shaft is movably connected with the second cam;

the third elastic piece is positioned between the first elastic piece and the second elastic piece, the third elastic piece is sleeved on the second connecting shaft, one end of the third elastic piece is in contact with the second cam, and the other end of the third elastic piece is in contact with the baffle plate.

12. Hinge structure according to any one of claims 6-9, characterized in that,

the damping mechanism, the synchronizing mechanism, the swing arm assembly and the driving assembly form damping modules, the number of the damping modules is at least three, and at least three damping modules are arranged at intervals along the axial direction of the rotating shaft so as to generate damping force through at least three damping modules.

13. An electronic device, comprising:

a hinge structure according to any one of claims 1 to 12.