CN114321145A

CN114321145A - Hinge mechanism and terminal equipment

Info

Publication number: CN114321145A
Application number: CN202011069902.2A
Authority: CN
Inventors: 加藤秀夫; 邹亚科; 长井贤次; 詹强; 黄涛; 石黑章郎
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2022-04-12

Abstract

The application provides a hinge mechanism and terminal equipment. The application provides an articulated mechanism is applied to among the terminal equipment, and can drive two framework relative rotations of terminal equipment, this articulated mechanism includes rotating assembly, thrust subassembly and locking Assembly, rotating assembly includes fixed bolster and two pendulum rod units, two pendulum rod units can be respectively around the relative rotation of the axis of rotation that is parallel to each other, be provided with the first cam portion with pendulum rod unit one-to-one on the fixed bolster, the first end butt of first cam portion and pendulum rod unit, the second end butt of thrust subassembly and pendulum rod unit, thrust subassembly is used for exerting thrust to the pendulum rod unit along the axis of rotation, locking Assembly sets up on the fixed bolster, and with the first end butt of pendulum rod unit. The hinge mechanism that this application provided can make two pendulum rod units rotate automatically under thrust assembly's effect to realize terminal equipment's automation and open.

Description

Hinge mechanism and terminal equipment

Technical Field

The application relates to the field of electronic equipment, in particular to a hinge mechanism and terminal equipment.

Background

With the development of science and technology, diversified screens provide more application choices for terminal equipment such as mobile phones, and particularly with the development and maturity of flexible screen technology, the terminal equipment with a foldable screen is developed by utilizing the characteristic that the flexible screen can be bent and folded.

Among various products equipped with a flexible screen, a folding terminal device generally has two bodies connected by a hinge mechanism and capable of rotating relatively, the flexible screen covers the surfaces of the two bodies, and the hinge mechanism supporting the folding function of the flexible screen is a key component of the products. At present, the mainstream folding terminal devices are all opened and closed by manually, and when a user uses the terminal devices, the user needs to hold one main body of the terminal device with one hand and turn over the other main body of the terminal device with the other hand, so that the terminal device is unfolded from a folding state.

Therefore, the folding terminal device in the prior art is inconvenient to open and poor in user experience.

Disclosure of Invention

The application provides a hinge mechanism and terminal equipment can realize that foldable terminal equipment opens automatically, improves user experience.

In a first aspect, the hinge mechanism provided by the application is applied to a terminal device, the terminal device is provided with two frames which can rotate relatively, the hinge mechanism comprises a rotating component, a thrust component and a locking component, the rotating component comprises a fixed support and two swing rod units, the two swing rod units are respectively used for being connected with the two frames of the terminal device, and the two swing rod units can respectively rotate relatively around rotating shafts which are parallel to each other; the fixed support is provided with first cam parts which correspond to the swing rod units one by one, the first cam parts are abutted to the first ends of the swing rod units, the thrust assembly is abutted to the second ends of the swing rod units, and the thrust assembly is used for applying thrust to the swing rod units along the rotating shaft so that the swing rod units rotate along the outlines of the first cam parts under the action of the thrust.

The locking assembly is arranged on the fixed support and abutted against the first ends of the swing rod units, and when the locking assembly is in a locking state, the locking assembly stops on the moving track of the first ends of the swing rod units so as to block the rotation of the two swing rod units.

Therefore, the two swing rod units can automatically rotate under the action of the thrust assembly by controlling the locking state of the locking assembly, so that the terminal equipment is automatically opened, and the operation of a user is facilitated.

In an alternative embodiment, when the locking assembly is in the locking state, the two rocker units are folded relatively. Therefore, when the hinge mechanism is not used, the hinge mechanism can be kept in a folding state, and when the hinge mechanism is used, the hinge structure can be automatically unfolded only by releasing the locking of the locking component.

As an alternative embodiment, the first cam part is a hollow cylindrical structure, the bottom end of the first cam part is connected to the fixed bracket, the top end of the first cam part extends along the rotating shaft of the rocker unit, the top end of the first cam part is provided with a first annular cam surface, and different positions of the first annular cam surface in the circumferential direction are provided with different axial heights, so that the rocker unit can move in the axial direction under the action of the thrust assembly.

The first end of the swing rod unit is abutted to the first cam surface, and when the axial position of the swing rod unit changes, the swing rod unit can slide relatively along the first cam surface and rotate around a rotating shaft of the swing rod unit. Therefore, the axial movement of the oscillating bar unit driven by the thrust component is converted into the rotation of the oscillating bar unit by using the cam structure.

As an alternative embodiment, the first end of the rocker unit has a contact portion extending along the rotational axis thereof, the contact portion being convex toward the fixed bracket and abutting against the first cam surface of the first cam portion. Thus, the contact portion can slide along the first cam surface, and the reaction force of the first cam surface to the contact portion can form a rotating moment to the swing link unit so as to rotate the swing link unit.

As an alternative embodiment, the locking assembly includes a locking member, the locking member is sleeved outside the first cam portion and abuts against the first end of the swing link unit, the contour of the locking member is located on the moving track of the first end of the swing link unit, so that the locking member can rotate around the rotating shaft after the locking assembly is unlocked, and when the locking assembly is located in the locking state, the locking member is fixed relative to the rotating shaft of the swing link unit, thereby blocking the rotation of the swing link unit.

As an alternative embodiment, the locking member has a second cam portion, a tip end of the second cam portion extends along the rotation shaft of the swing link unit, a tip end of the second cam portion has a second cam surface in an annular shape, the second cam surface is located outside the shape surrounded by the first cam surface, and the second cam surface has different axial heights at different positions in the circumferential direction.

The second cam surface is abutted to the first end of the swing rod unit, the second cam surface and the first cam surface are provided with different profiles in the circumferential direction, so that the first end of the swing rod unit can slide along the second cam surface, and meanwhile, the contact part of the first end of the swing rod unit can be matched with the first cam surface and the second cam surface to slide respectively, so that the terminal equipment can be automatically opened, and the terminal equipment can be manually opened.

As an alternative embodiment, when the swing link unit rotates under the thrust of the thrust assembly, the highest point of the second cam surface is located in front of the moving track of the first end of the swing link unit, and the highest point of the second cam surface abuts against the first end of the swing link unit, so that after the locking of the locking piece is released, the swing unit can push the locking piece to rotate while automatically rotating.

As an optional implementation manner, when the swing link unit is located at the relatively folded position, the highest point of the first cam surface and the highest point of the second cam surface are staggered to form a clamping groove together, and the first end of the swing link unit is clamped in the clamping groove, so that when the locking assembly is in the locked state, the swing link unit can be ensured to be maintained at the folded position.

As an alternative embodiment, when the rocker units are relatively unfolded, the rotation angle of the second cam surface relative to the first cam surface is twice as large as the rotation angle of the rocker units. Therefore, when the swing rod unit pushes the locking piece to rotate, the contact part of the swing rod unit can slide along the second cam surface, so that the locking piece can rotate 180 degrees after the swing rod unit is completely unfolded, and repeated automatic opening can be realized by utilizing the central symmetrical structure of the second cam surface.

As an alternative embodiment, when the rocker unit is in the closed state, the contact portion corresponds to a high point of the profile curves of the first cam surface and the second cam surface, and when the rocker unit is in the extended state, the contact portion corresponds to a low point of the profile curves of the first cam surface and the second cam surface. Therefore, in the process that the thrust assembly pushes the swing rod unit to slide from the high position to the low position of the cam surface, the swing rod unit can be synchronously rotated and unfolded.

As an alternative embodiment, the contour of the second cam surface comprises a straight section perpendicular to the axis of rotation, the straight section being located between the highest point and the lowest point of the second cam surface. In this way, the terminal device is manually turned on, and the terminal device is maintained in a half-turned-on state when the contact portion slides to the straight section in the process that the contact portion of the swing link unit slides along the second cam surface.

As an optional implementation manner, the locking assembly further comprises a key, a first elastic piece and a locking block, the locking block is provided with a first inclined surface, the key is provided with a second inclined surface matched with the first inclined surface, and included angles are formed between the first inclined surface and the rotating shaft and between the second inclined surface and the rotating shaft; the locking block and the key are arranged on the fixed support in a sliding mode, the sliding direction of the locking block is perpendicular to the rotating shaft, and the sliding direction of the key is the extending direction of the rotating shaft of the swing rod unit. Therefore, by means of the matching of the first inclined surface and the second inclined surface, when the key moves along the axial direction of the rotating shaft of the swing rod unit, the locking block can be pushed to slide along the direction perpendicular to the rotating shaft.

The first elastic piece is connected to the locking piece and used for applying elastic force to the locking piece, so that the locking piece can slide to a position abutted to the locking piece under the action of the elastic force of the first elastic piece to enable the locking assembly to be in a locking state, or slide to a position separated from the locking piece under the pushing of the key to enable the locking assembly to be unlocked.

As an optional implementation manner, the locking assembly includes two locking blocks, the first elastic member is disposed between the two locking blocks, an elastic force direction of the first elastic member points to a direction in which the two locking blocks are away from each other, and the key has two second inclined surfaces, and the two second inclined surfaces are respectively matched with the first inclined surfaces of the locking blocks. Therefore, under the action of the elastic force of the first elastic piece, the locking reliability of the locking assembly can be ensured, and meanwhile, the movement of the key can push the locking block to overcome the elastic force of the first elastic piece to move oppositely, so that the unlocking convenience of the locking assembly is realized.

As an optional implementation manner, a notch is formed in a side wall of the locking member, and when the locking block abuts against the locking member, the locking block can be clamped into the notch, so that the locking assembly is in a locking state, and thus the reliability of fixing the locking block to the locking member can be ensured.

In an alternative embodiment, the two notches are provided on opposite sides of the locking element. Therefore, in the state that the swing rod unit is folded or completely unfolded, the locking piece can be kept in the locking state by the locking block, on one hand, the locking piece can be kept relatively fixed in the manual opening or folding process of the terminal device, on the other hand, the locking piece is provided with a symmetrical fixing structure, and therefore the locking function of the locking assembly is guaranteed in the process of repeatedly opening and folding.

As an alternative embodiment, the fixing bracket is provided with a through hole for the locking block to pass through, and when the two locking blocks are away from each other under the elastic force of the first elastic member, the side wall of the locking block is abutted against the edge of the through hole. Therefore, the locking block can be clamped on the fixed support to ensure the realization of the locking function of the locking block.

As an optional implementation manner, the thrust assembly includes a first baffle, a second baffle and a second elastic member disposed between the first baffle and the second baffle, the first baffle abuts against the second end of the swing link unit, and the second elastic member is used for applying an elastic force to the first baffle, the first baffle can push the swing link unit to move along the rotation axis, so that the rotation of the swing link unit is realized through the cooperation with the first cam surface and the second cam surface.

As an optional implementation mode, the hinge mechanism further includes two first positioning rods, the two first positioning rods and the two swing rod units are respectively and correspondingly arranged, the first positioning rod sequentially passes through the fixing support, the swing rod unit and the thrust assembly to form a rotating shaft of the swing rod unit, the first end of the positioning rod is connected to one side of the fixing support, which deviates from the swing rod unit, and the second end of the positioning rod is fixed to one side of the thrust assembly, which deviates from the swing rod unit. In this way, support can be provided for the overall structure of the hinge mechanism, while positioning and guiding is provided for the opening and closing movement as well as the axial movement of the hinge structure.

As an optional implementation mode, the thrust assembly further comprises a third baffle, the third baffle is arranged on one side, away from the second elastic piece, of the second baffle, a sliding groove is formed in the third baffle, and the second end of the first positioning rod is clamped in the sliding groove. Therefore, the positioning rod can conveniently pass through the swing rod unit and the thrust assembly from one side of the fixing support to be installed.

As an alternative embodiment, the second elastic element is sleeved on the first positioning rod. Thus, the first positioning rod may provide a guiding action when the second resilient member is compressed.

As an alternative embodiment, the rotating assembly further comprises a synchronizing wheel unit comprising a first gear and a second gear which are meshed with each other; the side walls of the swing rod units are provided with meshing parts, and the first gear and the second gear are respectively meshed with the meshing parts of the two swing rod units. Therefore, the two swing rod units can synchronously rotate, and the smoothness of the opening and closing process of the terminal equipment is ensured.

As an alternative embodiment, the side wall of the swing link unit is provided with a connecting portion protruding in the radial direction of the swing link unit, and the connecting portion is used for connecting with the frame of the terminal device. Therefore, the opening and closing of the hinge mechanism can drive the opening and closing of the terminal equipment frame body.

In a second aspect, the present application provides a terminal device, which includes two frames and the above-mentioned hinge mechanism, where the two swing link units of the hinge mechanism are respectively connected to the two frames to enable the two frames to rotate relatively.

The application provides a hinge mechanism and a terminal device, the hinge mechanism is applied to the terminal device and can drive two frame bodies of the terminal device to rotate relatively, the hinge mechanism comprises a rotating component, a thrust component and a locking component, the rotating component comprises a fixed support and two swing rod units, the two swing rod units are respectively used for being connected with the two frame bodies of the terminal device, the two swing rod units can respectively rotate relatively around rotating shafts which are parallel to each other, first cam parts which correspond to the swing rod units one by one are arranged on the fixed support, the first cam parts are abutted against first ends of the swing rod units, the thrust component is abutted against second ends of the swing rod units, the thrust component is used for applying thrust to the swing rod units along the rotating shafts so as to enable the swing rod units to rotate along the outlines of the first cam parts under the action of the thrust, wherein the locking component is arranged on the fixed support and abutted against first ends of the swing rod units, when the locking assembly is in a locking state, the locking assembly stops on the moving track of the first ends of the swing rod units so as to block the rotation of the two swing rod units. Therefore, the two swing rod units can automatically rotate under the action of the thrust assembly by controlling the locking state of the locking assembly, so that the terminal equipment is automatically opened, and the operation of a user is facilitated.

Drawings

Fig. 1 is a schematic configuration diagram of a folder type terminal device;

fig. 2 is a schematic structural diagram of a hinge structure provided in an embodiment of the present application;

FIG. 3 is an exploded view of a hinge structure provided by an embodiment of the present application;

FIG. 4 is a front view of a closed state of the hinge mechanism provided by an embodiment of the present application;

FIG. 5 is a partial view of the closed position of the hinge mechanism provided by an embodiment of the present application;

FIG. 6 is a partial view of a first end position of the rocker unit in the hinge mechanism provided in an embodiment of the present application;

FIG. 7a is a cam profile graph of an initial state of the hinge mechanism provided by an embodiment of the present application when automatically deployed;

FIG. 7b is a cam profile graph of an intermediate first state with the hinge mechanism automatically deployed as provided by an embodiment of the present application;

FIG. 7c is a cam profile graph of an intermediate second state with the hinge mechanism automatically deployed as provided by embodiments of the present application;

FIG. 7d is a cam profile graph of the final state of the hinge mechanism as it is automatically deployed as provided by embodiments of the present application;

FIG. 8 is a cam profile graph of the hinge mechanism provided by embodiments of the present application as it is manually extended or closed;

FIG. 9 is an exploded view of the locking and rotating components of the hinge mechanism provided by an embodiment of the present application;

FIG. 10a is a schematic structural diagram of a hinge mechanism provided in an embodiment of the present application before unlocking;

FIG. 10b is a schematic view of the unlocked hinge mechanism provided by the embodiments of the present application;

FIG. 10c is a schematic structural diagram of an unlocking reset of the hinge mechanism provided in the embodiment of the present application;

fig. 11 is a front view of a fixing bracket in a hinge mechanism provided in an embodiment of the present application.

Description of reference numerals:

1-a hinge structure; 10-a rotating assembly; 11-a pendulum unit; 111-a contact; 112-a connecting portion; 12-a fixed support; 121-a first cam portion; 1211 — a first cam surface; 122-a through hole; 13-a synchronizing wheel unit; 20-a locking assembly; 21-a locking element; 211-a second cam portion; 2111-a second cam surface; 212-a notch; 213-card slot; 22-a key; 221-a first bevel; 222 — a first raised structure; 23-a locking block; 231-a second bevel; 232-projection; 233-groove section; 234-a second raised structure; 24-a first elastic member; 30-a thrust assembly; 31-a first baffle; 32-a second baffle; 33-a third baffle; 331-a chute; 34-a second elastic member; 40-a first positioning rod; 100-frame body.

Detailed Description

With the development of scientific technology, the technology of the flexible screen is gradually developed and matured, and the terminal equipment such as a mobile phone and the like can realize the bending and folding of the screen by utilizing the characteristic that the flexible screen can be bent and folded, so that the terminal equipment has a compact size, and meanwhile, the flexible screen has a large display area.

At present, in order to realize a larger screen area on a smaller terminal device, a flexible screen body can be arranged on the terminal device, and the terminal device is designed to be a folding screen structure. As shown in fig. 1, in a terminal device having a conventional folding screen structure, a main structure of the terminal device is mainly divided into two frame bodies 100 hinged to each other by a hinge mechanism 1, and a flexible screen body covers surfaces of the two frame bodies 100 at the same time. When the two frames 100 rotate around the rotating shaft and are folded together, the terminal equipment is in a folded state, and the terminal equipment is small in size and convenient to carry; when the two frames 100 rotate around the rotation axis to the positions flush with each other, the terminal device is in the unfolded state, and the flexible screen of the terminal device has a larger display area.

In the existing folding screen structure, the screen can be folded inwards or outwards. Taking the inwardly folded structure as an example, the flexible screen body is disposed inside the two frame bodies 100. When the two frame bodies 100 are folded, the flexible screen body can be clamped in the middle, and the part of the flexible screen body close to the hinge mechanism 1 can be bent, so that the parts of the flexible screen body corresponding to the two frame bodies 100 are folded and mutually attached together; when the two frame bodies 100 are unfolded, the flexible screen body is unfolded along with the two frame bodies, and a larger display plane is formed. In the opening and closing process, the hinge mechanism 1 connecting the two frame bodies 100 is an important component, which ensures the smoothness of the opening and closing process of the terminal device and the reliability of the whole structure.

However, in the prior art, the folding screen device usually needs to manually open the two frames 100 in the closed state, that is, a user needs to hold one frame 100 with one hand and open the other frame 100 with the other hand, and in this process, the user needs to continuously push the frame 100 to the open state with the hand, so that the two frames 100 are in the horizontal coplanar state to form a complete large display plane, and therefore, the existing folding screen device is inconvenient to open and affects user experience.

Therefore, the hinge mechanism and the terminal equipment are provided, the folding terminal equipment can be automatically opened, and therefore user experience is improved. It should be noted that the way that the terminal device is automatically opened from the folded state provides a more convenient choice for the user, that is, the user can open the folded terminal device in the automatic opening way and can manually open the terminal device.

Fig. 2 is a schematic structural diagram of a hinge structure provided in an embodiment of the present application, fig. 3 is an exploded view of the hinge structure provided in the embodiment of the present application, as shown in fig. 2 and 3, the hinge mechanism provided by the present application includes a rotation assembly 10, a thrust assembly 30 and a locking assembly 20, the rotation assembly 10 includes a fixed bracket 12 and two swing link units 11, the two swing link units 11 are respectively used for connecting with two frames 100 of a terminal device, the two swing link units 11 can respectively rotate relatively around mutually parallel rotation axes, first cam portions 121 corresponding to the swing link units 11 one to one are disposed on the fixed bracket 12, the first cam portions 121 abut against first ends of the swing link units 11, the thrust assembly 30 abuts against second ends of the swing link units 11, and the thrust assembly 30 is used for applying thrust to the swing link units 11 along the rotation axes, so that the swing link units 11 rotate along the profiles of the first cam portions 121 under the thrust action. Therefore, the two swing rod units 11 can automatically rotate under the action of the thrust assembly 30, so that the terminal equipment is automatically opened, and the operation of a user is facilitated.

The locking assembly 20 is disposed on the fixing bracket 12 and abutted against the first end of the swing link unit 11, and when the locking assembly 20 is in a locked state, the locking assembly 20 is stopped on a moving track of the first end of the swing link unit 11 to block the rotation of the two swing link units 11. The fixing bracket 12 may have a plate-shaped structure, and the first cam portion 121 is disposed at a side of the fixing bracket 12 facing the swing link unit 11 and protrudes outward from a plate surface of the fixing bracket 12.

Specifically, when the relative included angle of the two swing link units 11 is 0 degree, the rotating assembly 10 is in a folding state, that is, the locking assembly 20 can maintain the swing link unit 11 in the initial closed state, and when the locking assembly 20 is unlocked, the swing link unit 11 can move along the axial direction of the rotating shaft of the swing link unit 11 under the thrust action of the thrust assembly 30, since the first end of the swing link unit 11 abuts on the first cam portion 121 of the fixing bracket 12, and there is a difference in height between different positions of the first cam portion 121, the rocker unit 11 slides from the higher position to the lower position of the first cam portion 121, and simultaneously generates a rotation axis during the sliding of the swing link unit 11 along the end of the first cam portion 121, until the swing link unit 11 slides to the lowest position of the first cam portion 121, the rotation is stopped and the state at this time corresponds to the spread angle of the two swing link units 11 being 180 deg..

In addition, in the embodiment of the present application, the rotation shaft of the swing link unit 11 may be a virtual rotation shaft or an entity rotation shaft, that is, the rotation shaft is only used to illustrate that the swing link unit 11 rotates around a certain fixed axis when being unfolded or folded, and the positioning and the radial position limitation of the swing link unit 11 may be implemented by an external positioning structure or an internal entity rotation shaft, which will be described in detail below and will not be unfolded here.

It should be noted that, after the locking assembly 20 is unlocked, the pushing assembly 30 is a power source for automatically unfolding the swing link unit 11 from the folded state, but the pushing force directly generated by the pushing assembly 30 along the axial direction of the rotating shaft only enables the swing link unit 11 to move along the rotating shaft, when the swing link unit 11 needs to be rotated by abutting against the first cam portion 121, the reaction force generated by the first cam portion 121, that is, the pushing assembly 30 located at the second end of the swing link unit 11 applies a pushing force to the swing link unit 11 towards the first end thereof, the swing link unit 11 correspondingly applies a force to the first cam portion 121 at the first end thereof, and since the mating surface of the first cam portion 121 and the cam swing link unit 11 is a cam slope, the reaction force of the first cam portion 121 to the swing link unit 11 forms an angle with the rotating shaft, and the component force of the reaction force in the direction perpendicular to the rotating shaft generates a rotating moment to the swing link unit 11, thereby pushing the swing link unit 11 to rotate about the rotation axis. The specific manner of fitting the first cam portion 121 to the rocker unit 11, and the profile shape of the contact surface will be described in detail below.

As an alternative embodiment, the first cam portion 121 is a hollow cylindrical structure, the bottom end of the first cam portion 121 is connected to the fixed bracket 12, the top end of the first cam portion 121 extends along the rotation axis of the rocker unit 11, and the top end of the first cam portion 121 has a first annular cam surface 1211, and different positions of the first annular cam surface 1211 in the circumferential direction have different axial heights, so that the rocker unit 11 can move in the axial direction under the action of the thrust assembly 30.

The first end of the swing link unit 11 abuts against the first cam surface 1211, and when the axial position of the swing link unit 11 changes, the first end of the swing link unit 11 slides relative to the first cam surface 1211 and rotates around the rotation axis of the swing link unit 11, so that the thrust assembly 30 can be used to convert the axial movement of the swing link unit 11 into the rotation of the swing link unit 11.

Specifically, since the first cam surface 1211 is an annular surface, the first cam surface 1211 can be divided into two semicircular portions, each of which corresponds to a 180 ° rotation angle, the two portions of the cam surface extend from a higher position to a lower position with the same inclination angle and profile, the highest position of one of the two portions is connected to the lowest position of the other portion, correspondingly, the lowest position is also connected to the highest position, and the corresponding rotation angle from the highest position to the lowest position is 90 °. When the swing link unit 11 abuts against the first cam surface 1211, the first end of the swing link unit 11 abuts against two parts of the first cam surface 1211 at the same time, and in the process of rotating the swing link unit 11, the height positions of the two semi-circular surfaces of the first cam surface 1211, which the first end abuts against, are consistent, so that the movement of the swing link unit 11 is kept stable, and the torque generated by the reaction force of the first cam surface 1211 against the swing link unit 11 can relatively balance to rotate the swing link unit 11.

Fig. 4 is a front view of a closed state of the hinge mechanism provided by the embodiment of the present application, and fig. 5 is a partial view of the closed state of the hinge mechanism provided by the embodiment of the present application, as shown in fig. 4 and fig. 5, for example, when the swing link unit 11 is in the closed state, the first end of the swing link unit 11 abuts against the highest points of the two portions of the first cam surface 1211 at the same time, and an included angle corresponding to the two swing link units 11 is 0 °, during the rotation of the swing link unit 11, both sides of the first end of the swing link unit slide from the highest points to the lowest points of the two portions of the first cam surface 1211, and when the swing link unit slides to the lowest point, the two swing link units 11 rotate 90 ° relative to the first cam surface 1211, and the included angle of the two swing link units 11 is 180 °.

In addition, in order to make the first end of the swing link unit 11 slide along the first cam surface 1211 when being matched with the first cam surface 1211, it is necessary to ensure that the contact between the first end and the second end is a line contact, therefore, a contact part 111 extending and protruding along the rotation axis direction of the swing link unit 11 can be arranged at the first end of the swing link unit 11, the contact part 111 protrudes towards the fixed bracket 12 and is contacted with the first cam surface 1211 of the first cam part 121, the contact part 111 can slide along the first cam surface 1211, and the reaction force of the first cam surface 1211 to the contact part 111 can form a rotation moment to the swing link unit 11 to rotate the swing link unit 11.

Specifically, the contact portion 111 may be an arc-shaped protruding structure, the first end of each rocker unit 11 may be provided with two symmetrical contact portions 111, and the two contact portions 111 correspond to the cam surfaces of the two semicircular rings of the first cam surface 1211, respectively, so that the first end of the rocker unit 11 can be abutted to the two semicircular rings of the first cam surface 1211 at the same time, and the balance of stress of the rocker unit 11 and the smoothness of the rotation process are ensured.

In addition, it should be noted that, in order to make the swing link unit 11 always receive the pushing force against the fixed bracket 12, the pushing member 30 will always press the second end of the swing link unit 11, and when the swing link unit 11 is in the closed state, the contact portion 111 of the first end thereof will abut against the high position of the first cam surface 1211, and in order to make the swing link unit 11 slide along the specific direction, the abutting position of the first cam surface 1211 will be slightly lower than the highest point of the contour curve of the first cam surface 1211, and in order to ensure that the swing link unit 11 can be kept at the high position of the first cam curve when receiving the pushing force of the pushing member 30, so as to maintain the closed state, the locking member 20 is required to lock the swing link unit 11, that is, to be blocked in front of the sliding stroke of the swing link unit 11, so as to prevent the swing link unit from sliding from the high position to the low position of the first cam surface 1211. The specific structure and locking manner of the locking assembly 20 will be described in detail below.

As an alternative embodiment, the locking assembly 20 includes a locking member 21, the locking member 21 is disposed outside the first cam portion 121 and abuts against the first end of the swing link unit 11, the contour of the locking member 21 is located on the moving track of the first end of the swing link unit 11, such that after the locking assembly 20 is unlocked, the locking member 21 can rotate around the rotating shaft, and when the locking assembly 20 is in the locking state, the locking member 21 is fixed relative to the rotating shaft of the swing link unit 11, thereby blocking the rotation of the swing link unit 11.

Specifically, the locking member 21 has a similar structure to the first cam portion 121 on the fixing bracket 12, the locking member 21 has a cylindrical structure, and the locking member 21 may be provided with a second cam portion 211, one of the differences is that the diameter of the locking member 21 is larger than that of the first cam portion 121, so that the locking member 21 is sleeved outside the first cam portion 121, one end of the locking member 21 abuts against the plate surface of the fixing bracket 12 facing the swing link unit 11, and the other end of the locking member 21 may abut against the first end of the swing link unit 11, that is, the end of the locking member 21 provided with the second cam portion 211 may abut against the contact portion 111 of the swing link unit 11. It can be seen that the contact portion 111 of the first end of the swing link unit 11 can abut against the first cam portion 121 and the second cam portion 211 at the same time, during the process of realizing the automatic unfolding of the swing link unit 11 from the folded locked state, the first cam portion 121 determines the sliding track of the swing link unit 11, that is, the swing link unit 11 will slide along the first cam surface 1211 of the first cam portion 121 so as to rotate and unfold, the second cam portion 211 can be blocked in front of the sliding track of the swing link unit 11 by using its own structure, when the position of the second cam portion 211 is fixed relative to the first cam portion 121, the swing link unit 11 is in the locked state, and when the second cam portion 211 can move relative to the first cam portion 121, the swing link unit 11 is unlocked and can be automatically unfolded under the thrust of the thrust assembly 30.

In order to realize different functions of the first cam portion 121 and the second cam portion 211, the end portions of the two cam portions may be designed with different contour curves, the top end of the second cam portion 211 extends along the rotation axis of the rocker unit 11, the top end of the second cam portion 211 may be designed with a second cam surface 2111 having a ring shape, the second cam surface 2111 is located outside the shape enclosed by the first cam surface 1211, and the second cam surface 2111 has different axial heights at different positions in the circumferential direction. Therefore, the contact portion 111 of the first end of the rocker unit 11 can abut against the first cam surface 1211 and the second cam surface 2111, and the second cam surface 2111 and the first cam surface 1211 have different profiles in the circumferential direction, so that when the second cam surface 2111 is fixed, the rocker unit 11 abuts against the first cam surface 1211 and is blocked by the second cam surface 2111, thereby keeping locking closed, and when the second cam surface 2111 can relatively rotate, the rocker unit 11 is unlocked and automatically unfolded, thereby being capable of sliding along the first cam surface 1211, and during this sliding process, the contact portion 111 and the second cam surface 2111 also slide relatively, i.e. the rotation of the second cam surface 2111 relative to the first cam surface 1211 is realized by the thrust of the contact portion 111 on the second cam surface 2111.

Further, when the rocker unit 11 rotates under the pushing force of the pushing assembly 30, the highest point of the second cam surface 2111 is located in front of the moving track of the contact portion 111 at the first end of the rocker unit 11, and the highest point of the second cam surface 2111 abuts against the contact portion 111, so that after the locking of the locking member 21 is released, the rocker unit 11 automatically rotates and simultaneously pushes the locking member 21 to rotate. It can be seen that, when the rocker unit 11 is in the closed state, the contact portion 111 at the first end thereof corresponds to the highest point of the first cam surface 1211 and the highest point of the second cam surface 2111, and it should be noted that the highest points of the first cam surface 1211 and the second cam surface 2111 described herein are both a section of convex arc-shaped curved surface at the highest point of the cam surfaces. Specifically, the highest point of the first cam surface 1211 and the highest point of the second cam surface 2111 are staggered to form a notch 213, and the first end of the swing link unit 11 is clamped in the notch 213, that is, the contact portion 111 is clamped in the notch 213, so that when the locking assembly 20 is in the locking state, the swing link unit 11 can be maintained at the closed position.

In addition, the second cam surface 2111 may be divided into two opposite cam surfaces, each of which corresponds to a rotation angle of 180 °, the two contact portions 111 at the first end of the rocker unit 11 are respectively abutted against the two cam surfaces, and the two cam surfaces are symmetrical with respect to the central point of the locking member 21, that is, the heights of the contour curves of the positions where the two contact portions 111 are abutted against the two cam surfaces are consistent during the rotation of the rocker unit 11. For the two sections of the cam surface 2111, the rotation angle from the highest point to the lowest point is 90 °, the lowest point and the lowest point of the two sections of the cam surface are connected, for the overall contour curve of the second cam surface 2111, two highest points and two lowest points are circumferentially arranged and are sequentially distributed at intervals, and the rotation angle between the highest point and the lowest point is 90 °. When the rocker units 11 are automatically rotated, the rocker units 11 are rotated from the closed state to the fully unfolded state, the rotation angle of the contact portion 111 relative to the first cam portion 121 is 90 °, the two rocker units 11 are rotated in opposite directions to form a relative included angle of 180 °, the contact portion 111 simultaneously pushes the second cam portion 211 to rotate and slides along the second cam surface 2111 from the highest point to the lowest point, so that the second cam portion 211 also has a rotation angle of 90 ° relative to the contact portion 111, and the rotation angle of the second cam portion 211 relative to the first cam portion 121 is 180 ° because the rotation directions of the contact portion 111 of the rocker unit 11 and the second cam portion 211 of the locking member 21 are the same, namely, after the rocker units 11 are automatically unfolded, the rotation angle of the second cam surface 2111 relative to the first cam surface 1211 is twice of the rotation angle of the rocker unit 11.

The above-mentioned matching and moving relationship between the contact portion 111 of the rocker unit 11 and the first cam surface 1211 and the second cam surface 2111 all describe the process of automatically unfolding the rocker unit 11 from the folded state, in the embodiment of the present application, the unfolding mode of the rocker unit 11 may be either automatically unfolding or unfolding under the action of an external force, that is, the corresponding terminal device may be automatically unfolded or manually unfolded, regardless of automatic unfolding or manual unfolding, when the terminal device is folded from the unfolded state, the terminal device needs to be manually unfolded, that is, the process of unfolding the rocker unit 11 to be folded needs to be realized by overcoming the thrust of the thrust assembly 30 by means of an external force. The process of manually unfolding and manually folding the swing link unit 11 will be described in detail below.

When the rocker unit 11 is manually unfolded from the folded state, the locking assembly 20 is always in the locked state, that is, the locking piece 21 and the fixed bracket 12 are kept relatively fixed, the corresponding first cam portion 121 and the second cam portion 211 are also kept relatively fixed, because the contact portion 111 is clamped in the clamping groove 213 formed by the peaks of the first cam surface 1211 and the second cam surface 2111, and the peak of the second cam surface 2111 is blocked in front of the moving track of the contact portion, the contact portion 111 can slide along the second cam surface 2111 after climbing over the peak of the second cam surface 2111, this process needs an external force to be realized, that is, the manual operation can be completed, and when the contact portion 111 slides over the peak of the second cam surface 2111, the contact portion 111 will move along the rotating shaft of the rocker unit 11 in a direction deviating from the fixed bracket 12, that is, the rocker unit 11 needs to move against the resistance of the thrust assembly 30, and after the contact portion 111 passes over the peak of the second cam surface 2111, the pushing force assembly 30 can provide a pushing force to help the swing link unit 11 rotate, so that a certain damping needs to be overcome at the beginning of the process of manually opening the terminal device of the present embodiment, and the pushing force assembly 30 can provide an auxiliary pushing force during the subsequent unfolding process, so as to make the opening process smoother.

It should be noted that, regarding the sliding track of the contact portion 111, the difference between the automatic opening and the manual opening is that, during the automatic opening, the contact portion 111 slides along the first cam surface 1211 while pushing the second cam portion 211 to rotate, that is, during the process, the contact portion 111 contacts with the first cam surface 1211 and the second cam surface 2111 simultaneously and slides relatively, and during the manual opening, the contact portion 111 only slides along the second cam surface 2111 while the second cam portion 211 remains relatively stationary with respect to the first cam. Therefore, the profile curves of the second cam surface 2111 from the highest point to the two adjacent lowest points are different, and the two profile curves correspond to the rotation angle of 90 °, specifically, during the automatic unfolding process of the rocker unit 11, the contact portion 111 slides along one of the profile curves, and during the manual unfolding process of the rocker unit 11, the contact portion 111 slides along the other profile curve.

When the pendulum unit 11 is manually folded from the unfolded state, the locking assembly 20 is also in the locked state, the locking member 21 is kept relatively fixed with the fixing bracket 12, the contact portion 111 slides along the second cam surface 2111 from the lowest point to the highest point, and back to the catch 213 formed by the first cam surface 1211 engaging the highest point of the second cam surface 2111, during which the contact portion 111 moves from the lower position to the upper position, i.e., the swing link unit 11 moves along its rotation axis in a direction away from the fixed bracket 12, it is necessary to overcome the urging force of the urging member 30, therefore, the magnitude of the slope of the profile curve on the second cam surface 2111 affects the amount of damping when the rocker unit 11 is manually closed, therefore, the damping of the manual opening and closing of the swing rod unit 11 can be adjusted by adjusting the gradient of the profile curve of the second cam surface 2111, so that the terminal device can be more comfortable and smooth in hand feeling when being manually opened and closed.

In some embodiments, the profile of the second cam surface 2111 includes a straight section perpendicular to the rotation axis, the straight section is located between the highest point and the lowest point of the second cam surface 2111, when the terminal device is turned on manually, the terminal device is maintained in a semi-open state when the contact portion 111 slides to the straight section during the process that the contact portion 111 of the rocker unit 11 slides along the second cam surface 2111, and specifically, when the contact portion 111 is located in the straight section, the thrust direction of the contact portion 111 to the second cam surface 2111 under the action of the thrust assembly 30 is perpendicular to the surface of the straight section, so that no component force for rotating the rocker unit 11 is generated, and therefore, the rocker unit 11 can be maintained in the semi-open state. In addition, the specific position of the straight section between the highest point and the highest point on the second cam surface 2111 and the size of the corner corresponding to the straight section may be determined according to the size and range of the angle at which the two swing link units 11 need to be kept open, which is not specifically limited in the embodiment of the present application.

It should be noted that, since the locking member 21 and the fixed bracket 12 are kept relatively stationary when the hinge mechanism of the present embodiment is manually opened and closed, that is, the relative positions of the first cam surface 1211 and the second cam surface 2111 are not changed, and the contact portion 111 slides along the second cam surface 2111, the height of the contour curve of the second cam surface 2111 is higher than the height of the contour curve of the first cam surface 1211 within the range of the sliding track of the contact portion 111.

As can be seen from the above-mentioned movement process of the automatic opening and the manual opening and closing of the swing link unit 11, the sliding track of the swing link unit 11 along the first cam surface 1211 or the second cam surface 2111 during the opening and closing process can be actually divided into three types, and it should be noted that, first, the first cam surface 1211 and the second cam surface 2111 are both annular cam surfaces, and for convenience of representing the fluctuation of the respective profile curves of the two, the plan view is expanded here for description, and the sliding of the contact portion 111 on the first cam surface 1211 or the second cam surface 2111 is changed into a movement along the profile curve in a plane. Fig. 6 is a partial view of a first end position of a swing link unit in a hinge mechanism provided in an embodiment of the present invention, fig. 7a is a cam profile graph of an initial state when the hinge mechanism provided in the embodiment of the present invention is automatically unfolded, fig. 7b is a cam profile graph of an intermediate first state when the hinge mechanism provided in the embodiment of the present invention is automatically unfolded, fig. 7c is a cam profile graph of an intermediate second state when the hinge mechanism provided in the embodiment of the present invention is automatically unfolded, fig. 7d is a cam profile graph of a final state when the hinge mechanism provided in the embodiment of the present invention is automatically unfolded, fig. 8 is a cam profile graph when the hinge mechanism provided in the embodiment of the present invention is manually unfolded or folded, as shown in fig. 6 to 8, a first sliding trajectory is an automatic opening process of the swing link unit 11, and the contact portion 111 slides along the first cam surface 1211 and pushes the second cam surface 2111 to rotate in a sliding direction thereof, as shown in the drawing, that is, the contour curve of the first cam surface 1211 is fixed differently, the contact portion 111 slides to the right along the contour curve of the first cam surface 1211, while the contact portion 111 pushes the contour curve of the second cam surface 2111 to slide to the right, and the contact portion 111 and the second cam surface 2111 also slide relatively, when the contact portion 111 slides from the high position to the low position of the first cam surface 1211, the actual rotation angle of the rocker unit 11 is 90 °, and correspondingly, when the contact portion 111 slides to the low position relative to the second cam surface 2111, the angle at which the second cam surface 2111 is pushed is 180 °, that is, the corresponding rotation angle of the locking piece 21 is 180 °, and this process utilizes the thrust of the thrust assembly 30 to the rocker unit 11 along the rotation axis, so as to realize the automatic rotation of the rocker unit 11, that is, the automatic unfolding of the hinge mechanism.

The second sliding track is a manual opening process of the rocker unit 11, the contact portion 111 slides along the second cam surface 2111, the first cam surface 1211 and the second cam surface 2111 are kept relatively fixed, as shown in the drawing, that is, the contour curves of the first cam surface 1211 and the second cam surface 2111 are kept stationary, the contact portion 111 slides to the right side along the contour curve of the second cam surface 2111, when the contact portion 111 slides from the high position to the low position of the second cam surface 2111, the actual rotation angle of the rocker unit 11 is 90 °, the process depends on an external force, that is, the contact portion 111 is manually unfolded, so that the contact portion 111 slides out of the catching groove 213 formed by the highest point of the first cam surface 1211 and the second cam surface 2111, and slides to the lowest point along the second cam surface 2111, after sliding out of the catching groove 213, there is a process from the high position to the low position, and the pushing force of the rocker unit 30 to the rocker unit 11 can provide an auxiliary force to help the rotation of the rocker unit 11, so that the hinge structure is unfolded.

The third sliding track is a manual folding process of the rocker unit 11, the contact portion 111 slides along the second cam surface 2111, the first cam surface 1211 and the second cam surface 2111 are kept relatively fixed, as shown in the drawing, that is, profile curves of the first cam surface 1211 and the second cam surface 2111 are kept motionless, the contact portion 111 slides to the left along the profile curve of the second cam surface 2111, when the contact portion 111 slides from a low position to a high position, the contact portion 111 is clamped into a clamping groove 213 formed by the highest points of the first cam surface 1211 and the second cam surface 2111, and an actual rotation angle of the rocker unit 11 is 90 °, which is actually a reverse sliding process of the second sliding track, and the rocker unit 11 overcomes the thrust of the thrust assembly 30 by means of external acting force, that is, by means of manual folding, so that the hinge mechanism is folded.

Since the locking member 21 and the stationary bracket 12 need to be relatively fixed during the manual opening and closing of the hinge mechanism while the locking member 21 and the stationary bracket need to be relatively rotatable during the automatic opening, structure is required in the locking assembly 20 to secure and release the locking member 21, as will be described in detail below.

Fig. 9 is an exploded view of a locking component and a rotating component in a hinge mechanism provided in an embodiment of the present application, fig. 10a is a schematic structural view before unlocking the hinge mechanism provided in the embodiment of the present application, fig. 10b is a schematic structural view after unlocking the hinge mechanism provided in the embodiment of the present application, fig. 10c is a schematic structural view after unlocking and returning the hinge mechanism provided in the embodiment of the present application, as shown in fig. 9 to 10c, as an alternative embodiment, the locking component 20 further includes a key 22, a first elastic member 24, and a locking block 23, the locking block 23 has a first inclined surface 221, the key 22 has a second inclined surface 231 cooperating with the first inclined surface 221, and both the first inclined surface 221 and the second inclined surface 231 have an included angle with a rotating shaft; the locking block 23 and the button 22 are slidably disposed on the fixed bracket 12, and the sliding direction of the locking block 23 is perpendicular to the rotation axis, and the sliding direction of the button 22 is the extending direction of the rotation axis of the swing link unit 11, i.e. the direction a in fig. 10a, so that by using the cooperation of the first inclined surface 221 and the second inclined surface 231, when the button 22 moves along the axial direction of the rotation axis of the swing link unit 11, the locking block 23 can be pushed to slide along the direction perpendicular to the rotation axis, thereby fixing and unlocking the locking piece 21 by the locking block 23.

The first elastic member 24 is connected to the locking block 23 and is configured to apply an elastic force to the locking block 23, so that the locking block 23 can slide to a position abutting against the locking member 21 under the elastic force of the first elastic member 24 to enable the locking assembly 20 to be in a locked state, or slide to a position out of contact with the locking member 21 under the pushing of the button 22, that is, when the button 22 is pushed to slide along the rotation axis direction of the swing link unit 11, the first inclined surface 221 generates a pressure on the second inclined surface 231, and a component of the pressure in the sliding direction of the locking block 23 is opposite to the elastic force direction of the first elastic member 24, so that the locking block 23 is forced to move and the first elastic member 24 is compressed to enable the locking assembly 20 to be unlocked. The first elastic member 24 may be a spring, an elastic rubber block, or the like, and the first elastic member 24 may be provided in plurality at intervals, which is not particularly limited in the embodiment of the present application.

In some embodiments, the locking assembly 20 includes two locking blocks 23, the first elastic member 24 is disposed between the two locking blocks 23, the elastic direction of the first elastic member 24 points to a direction in which the two locking blocks 23 are away from each other, and the key 22 has two second inclined surfaces 231, and the two second inclined surfaces 231 respectively cooperate with the first inclined surfaces 221 of the locking blocks 23. Therefore, under the action of the elastic force of the first elastic element 24, the locking reliability of the locking assembly 20 can be ensured, and meanwhile, the movement of the key 22 can push the locking blocks 23 to move towards each other against the elastic force of the first elastic element 24, so that the unlocking convenience of the locking assembly 20 is also realized.

Further, a notch 212 may be formed in a side wall of the locking member 21, when the locking block 23 abuts against the locking member 21, a protrusion 232 may be disposed on the locking block 23, and the protrusion 232 on the locking block 23 may be clamped into the notch 212, so that the locking assembly 20 is in a locking state, thereby ensuring the reliability of the locking block 23 for fixing the locking member 21, correspondingly, when the locking block 23 is pushed by the key 22 to move against the elastic force of the first elastic member 24, the protrusion 232 of the locking block 23 may slide out from the notch 212, thereby unlocking the locking member 21, under the thrust action of the thrust assembly 30 on the swing link unit 11, the locking member 21 may rotate relatively, and the corresponding swing link unit 11 also automatically unfolds.

It should be noted that, in order to install the key 22 on the locking block 23, the first inclined surface 221 of the key 22 is matched with the second inclined surface 231 of the locking block 23 and can slide relatively, and at the same time, the key 22 is prevented from sliding off the locking block 23, a first stopper and a second stopper are respectively arranged on two sides of the first inclined surface 221 and the second inclined surface 231, the first stopper is located on one side of the second stopper facing the fixed bracket 12, and when the key 22 slides in a direction away from the locking block 23, the second stopper can abut against the first stopper, so as to prevent the key 22 from sliding off the locking block 23.

In some embodiments, the two notches 212 may be provided at opposite sides of the locking member 21, and since the actual rotation angle of the locking member 21 with respect to the fixing bracket 12 is 180 ° when the swing link unit 11 is automatically unfolded to be fully opened, the two notches 212 provided at opposite sides may allow the protrusion 232 of the locking block 23 to be caught in the notch 212 in the state where the swing link unit 11 is folded or unfolded fully, while the locking member 21 is maintained in the locked state. On the other hand, the second cam portion 211 of the locking member 21 has two centrosymmetric cam surface profiles, and the two oppositely arranged notches 212 can ensure the locking function of the locking assembly 20 while the locking member 21 always rotates towards the fixed direction in the process of repeated automatic unfolding of the swing link unit 11. Illustratively, the notches 212 on both sides of the locking member 21 include a first notch and a second notch, the protrusion 232 of the locking block 23 is clamped in the first notch of the locking member 21, when the key 22 is pushed to make the protrusion 232 of the locking block 23 slide out of the first notch, the locking member 21 rotates along with the rotation of the swing link unit 11, and the locking member 21 rotates 180 ° under the pushing of the swing link unit 11, at this time, the second notch is opposite to the protrusion 232 of the locking block 23, at this time, the locking block 23 can be abutted to the locking member 21 again under the elastic force of the first elastic member 24, and the protrusion 232 of the locking block 23 is clamped in the second notch.

As an alternative embodiment, the fixing bracket 12 has a through hole 122 for the locking block 23 to pass through, when the two locking blocks 23 are separated from each other under the elastic force of the first elastic member 24, the side wall of the locking block 23 abuts against the edge of the through hole 122, so that the locking block 23 can be clamped on the fixing bracket 12 to ensure the locking function thereof.

Illustratively, the through hole 122 of the fixing bracket 12 may be a cross-shaped hole, i.e., the through hole 122 has two hole slots extending in directions perpendicular to each other. Fig. 11 is a front view of the fixing bracket in the hinge mechanism according to the embodiment of the present application, as shown in fig. 11, where the X direction is a direction in which the two locking blocks 23 slide relative to each other, when the two locking blocks 23 are installed in the through hole 122 of the fixing bracket 12, the two locking blocks 23 are first closed together by an external force, and the first elastic member 24 between the two locking blocks 23 is compressed, so that the thickness of the closed end of the two locking blocks 23 is smaller than the groove width of the through hole 122 in the Y direction, so that the two locking blocks 23 can be inserted into the through hole 122, and then the two locking blocks 23 are released, and under the elastic force of the first elastic member 24, the two locking blocks 23 slide along the X direction of the through hole 122 and move away from each other. In addition, a groove section 233 is provided on the locking block 23, the width of the groove end is smaller than the width of both ends thereof, and after the locking block 23 is inserted into the through hole 122, the groove section 233 of the locking block 23 is engaged with the through hole 122, thereby preventing the locking block 23 from sliding out of the through hole 122 due to axial play relative to the through hole 122 while the locking block 23 can slide in the X direction of the through hole 122.

The thrust assembly 30 needs to provide thrust for the rotation of the swing link unit 11 during the automatic unfolding process of the hinge mechanism, and needs to provide auxiliary force or damping for the manual unfolding and folding of the hinge mechanism, and the specific structure of the thrust assembly 30 will be described below.

As an alternative embodiment, the thrust assembly 30 includes a first blocking plate 31, a second blocking plate 32 and a second elastic member 34 disposed between the first blocking plate 31 and the second blocking plate 32, the first blocking plate 31 abuts against the second end of the rocker unit 11, and the second elastic member 34 is used for applying an elastic force to the first blocking plate 31, the first blocking plate 31 can push the rocker unit 11 to move along the rotation axis, so that the rotation of the rocker unit 11 is realized through the cooperation with the first cam surface 1211 and the second cam surface 2111.

Specifically, the second elastic element 34 is in a state of being compressed by the first baffle 31 and the second baffle 32, the first baffle 31 abuts against the second end of the pendulum unit 11 during the movement of the pendulum unit 11 and moves along with the pendulum unit 11 along the axial direction of the rotation shaft thereof, and the position of the second baffle 32 is relatively fixed.

In some embodiments, the hinge mechanism further includes two first positioning rods 40, two first positioning rods 40 and two swing rod units 11 respectively correspond to each other, the first positioning rod 40 sequentially passes through the fixed support 12, the swing rod unit 11 and the thrust assembly 30, so as to form a rotating shaft of the swing rod unit 11, the first end of the positioning rod is connected to one side of the fixed support 12 deviating from the swing rod unit 11, the second end of the positioning rod is fixed to one side of the thrust assembly 30 deviating from the swing rod unit 11, so as to provide a support for the overall structure of the hinge mechanism, and meanwhile, the positioning and guiding are provided for the opening and closing movement and the axial movement of the hinge structure.

Optionally, the thrust assembly 30 further includes a third baffle 33, the third baffle 33 is disposed on one side of the second baffle 32 away from the second elastic member 34, a sliding groove 331 is disposed on the third baffle 33, and the second end of the first positioning rod 40 is clamped in the sliding groove 331, so that the first positioning rod 40 can be conveniently installed by passing through the swing rod unit 11 and the thrust assembly 30 from one side of the fixing bracket 12 in sequence.

Further, the second elastic element 34 is sleeved on the first positioning rod 40. So that the first positioning rod 40 can provide a guiding function when the second elastic member 34 is compressed. Further, the elastic member may be a spring.

It should be noted that, in order to realize the support of the first positioning rod 40 to the whole structure, the first end and the second end of the first positioning rod 40 are respectively provided with the first protrusion structure 222 and the second protrusion structure 234, the diameters of the first protrusion structure 222 and the second protrusion structure 234 are both larger than the diameter of the rod body of the first positioning rod 40, when the first positioning rod 40 is installed, the second end of the first positioning rod 40 sequentially passes through the installation through holes of the components from the side of the fixing support 12, so that the diameter of the second protrusion structure 234 is smaller than the diameter of the installation through holes on the fixing support 12, the swing rod unit 11, the first baffle 31 and the second single plate, and the diameter of the first protrusion structure 222 is larger than the diameter of the installation through holes on the fixing support 12, so that the first protrusion structure 222 can abut against the side of the fixing support 12 away from the swing rod unit 11. After the first positioning rod 40 is installed, the third baffle 33 is installed, wherein the groove width of the sliding groove 331 on the third baffle 33 is smaller than the diameter of the second protrusion structure 234 and larger than the diameter of the shaft of the first positioning rod 40, so that the shaft of the second end of the first positioning rod 40 can slide into the sliding groove 331 of the third baffle 33, meanwhile, the second protrusion structure 234 can abut against one side of the third baffle 33 departing from the second baffle 32, and under the elastic action of the second elastic member 34, the fixing support 12, the second single plate and the third baffle 33 abut against two ends of the first positioning rod 40 respectively, so as to ensure the stability of the whole structure of the hinge mechanism, and the swing unit and the first baffle 31 can move along the axial direction of the first positioning rod 40. The first positioning rod 40 is a structural design of the solid rotation shaft of the swing unit described above.

Since the two swing link units 11 are relatively rotated in the present embodiment, the synchronization of the rotation rhythm and the rotation angle of the two swing link units needs to be ensured during the unfolding process of the hinge mechanism.

As an alternative embodiment, the rotating assembly 10 further comprises a synchronizing wheel unit 13, the synchronizing wheel unit 13 comprising a first gear and a second gear which are meshed with each other; the side walls of the swing rod units 11 are provided with meshing parts, and the first gear and the second gear are respectively meshed with the meshing parts of the two swing rod units 11, so that the two swing rod units 11 can synchronously rotate, and the smoothness of the opening and closing process of the terminal equipment is ensured.

Specifically, the first gear and the second gear may be mounted on a side of the first baffle 31 abutting against the swing link unit 11, and the first gear and the second gear may move along an axial direction of the rotation shaft of the swing link unit 11 along with the second baffle 32 in the rotation process of the swing link unit 11.

Optionally, the hinge mechanism may further be provided with two second positioning rods, where the two second positioning rods respectively pass through the first gear and the second gear, that is, as rotation shafts of the first gear and the second gear, taking the first gear as an example, one of the second positioning rods sequentially passes through the first gear, the first baffle 31 and the second baffle 32, and one end of the second baffle 32 may be connected to the third baffle 33 in a clamping manner. In addition, the second positioning rod may also be sleeved with a second elastic member 34, so as to provide an elastic force together with the second elastic member 34 on the first positioning rod 40, thereby improving the stability of the overall structure, and on the other hand, the plurality of second elastic members 34 provide a thrust and are arranged in a spaced manner, so as to reduce the size of each second elastic member 34.

As an alternative embodiment, the side wall of the swing link unit 11 is provided with a connecting portion 112 protruding in the radial direction of the swing link unit 11, and the connecting portion 112 is used for connecting with the frame 100 of the terminal device, so that the opening and closing of the hinge mechanism can drive the opening and closing of the frame 100 of the terminal device.

The present embodiment further provides a terminal device, which includes two frame bodies 100 and the hinge mechanism, wherein the two swing link units 11 of the hinge mechanism are respectively connected to the two frame bodies 100, so that the two frame bodies 100 can rotate relatively.

Specifically, the relative state of the two frames 100 corresponds to the relative state of the two swing link units 11 of the hinge mechanism, that is, when the swing link units 11 are in the closed state, the two frames 100 are relatively closed, and when the two swing link units 11 are relatively unfolded, the two frames 100 are also relatively unfolded, for a folding terminal device with a flexible screen, when the two frames 100 are closed, the terminal device can be conveniently carried, and when the two frames 100 are unfolded, a larger display area can be obtained.

In some embodiments, the terminal device may include, but is not limited to, a cell phone, a tablet, a Personal Digital Assistant (PDA), a Point of Sales (POS), a vehicle computer, and the like. The flexible screen folding terminal device can be a folding terminal device using a flexible screen, and can also be a folding terminal device not using the flexible screen, and the difference between the flexible screen folding terminal device and the folding terminal device is that the flexible screen folding terminal device needs to be unfolded at a larger angle, namely, two frames 100 are unfolded by 180 degrees to obtain a flat display plane.

The embodiment provides a hinge mechanism and a terminal device, the hinge mechanism is applied in the terminal device and can drive two frames of the terminal device to rotate relatively, the hinge mechanism comprises a rotating component, a thrust component and a locking component, the rotating component comprises a fixed support and two swing rod units, the two swing rod units are respectively used for being connected with the two frames of the terminal device, the two swing rod units can respectively rotate relatively around rotating shafts which are parallel to each other, first cam parts which correspond to the swing rod units one by one are arranged on the fixed support, the first cam parts are abutted with first ends of the swing rod units, the thrust component is abutted with second ends of the swing rod units, the thrust component is used for applying thrust to the swing rod units along the rotating shafts so as to enable the swing rod units to rotate along the outlines of the first cam parts under the action of the thrust, wherein the locking component is arranged on the fixed support and abutted with the first ends of the swing rod units, when the locking assembly is in a locking state, the locking assembly stops on the moving track of the first ends of the swing rod units so as to block the rotation of the two swing rod units. Therefore, the two swing rod units can automatically rotate under the action of the thrust assembly by controlling the locking state of the locking assembly, so that the terminal equipment is automatically opened, and the operation of a user is facilitated.

Claims

1. A hinge mechanism is applied to terminal equipment, the terminal equipment is provided with two frames which can rotate relatively, and the hinge mechanism is characterized by comprising a rotating component, a thrust component and a locking component, wherein the rotating component comprises a fixed support and two swing rod units, the two swing rod units are respectively used for being connected with the two frames of the terminal equipment, and the two swing rod units can respectively rotate relatively around rotating shafts which are parallel to each other; the fixed bracket is provided with first cam parts which correspond to the swing rod units one by one, the first cam parts are abutted with first ends of the swing rod units, the thrust assembly is abutted with second ends of the swing rod units, and the thrust assembly is used for applying thrust to the swing rod units along the rotating shaft so as to enable the swing rod units to rotate along the profiles of the first cam parts under the action of the thrust;

2. A hinge mechanism according to claim 1, wherein the two rocker units are relatively closed when the locking assembly is in the locked state.

3. A hinge mechanism according to claim 1 or 2, wherein the first cam portion has a hollow cylindrical structure, a base end of the first cam portion is connected to the fixed bracket, a tip end of the first cam portion extends along the rotation shaft of the rocker unit, and the tip end of the first cam portion has a first cam surface in an annular shape, and different positions of the first cam surface in the circumferential direction have different axial heights;

the first end of the swing rod unit is abutted to the first cam surface, and when the axial position of the swing rod unit changes, the swing rod unit slides relatively along the first cam surface so as to rotate around the rotating shaft.

4. A hinge mechanism according to claim 3, wherein the first end of the rocker unit has a contact portion extending along the rotary shaft, the contact portion being convex toward the fixed bracket and abutting against the first cam surface.

5. A hinge mechanism according to claim 3, wherein the locking member includes a locking member fitted to an outer side of the first cam portion and abutting against the first end of the swing lever unit, the locking member having a contour on a moving locus of the first end of the swing lever unit and being rotatable about the rotation shaft;

when the locking assembly is in the locked state, the locking member is fixed relative to the rotating shaft.

6. A hinge mechanism according to claim 5, wherein the lock member has a second cam portion having a tip end extending along the rotation axis of the swing lever unit, the tip end of the second cam portion having a second cam surface in an annular shape, the second cam surface being located outside the shape surrounded by the first cam surface, the second cam surface having different axial heights at different positions in the circumferential direction;

the second cam surface is abutted to the first end of the swing rod unit, and the second cam surface and the first cam surface have different profiles in the circumferential direction.

7. A hinge mechanism according to claim 6, wherein when the rocker unit is rotated by the urging force of the urging member, the highest point of the second cam surface is located in front of the movement locus of the first end of the rocker unit, and the highest point of the second cam surface abuts against the first end of the rocker unit.

8. A hinge mechanism according to claim 7, wherein when the rocker unit is in the relatively closed position, the highest point of the first cam surface and the highest point of the second cam surface are mutually staggered to define a slot, and the first end of the rocker unit is clamped in the slot.

9. A hinge mechanism according to claim 7, wherein the second cam surface is rotated at an angle twice as large as the angle of rotation of the rocker unit with respect to the first cam surface when the rocker unit is rotated.

10. A hinge mechanism according to claim 7, wherein the contact portion corresponds to a high point of the contour curve of the first and second cam surfaces when the rocker unit is in the closed state, and corresponds to a low point of the contour curve of the first and second cam surfaces when the rocker unit is in the extended state.

11. A hinge mechanism according to any one of claims 6-10, wherein the contour of the second cam-surface comprises a straight section perpendicular to the rotation axis, the straight section being located between the highest and lowest points of the second cam-surface.

12. A hinge mechanism according to any one of claims 5-11, wherein the locking assembly further comprises a key, a first resilient member and a locking block, the locking block having a first inclined surface, the key having a second inclined surface cooperating with the first inclined surface, the first inclined surface and the second inclined surface both having an included angle with the rotation axis; the locking block and the key are arranged on the fixed support in a sliding mode, the sliding direction of the locking block is perpendicular to the rotating shaft, and the sliding direction of the key is the extending direction of the rotating shaft;

the first elastic piece is connected to the locking block and used for applying elastic force to the locking block, and the locking block is used for sliding to a position abutted to the locking piece under the action of the elastic force of the first elastic piece so as to enable the locking assembly to be in the locking state or sliding to a position disengaged from the locking piece under the pushing of the key so as to enable the locking assembly to be unlocked.

13. A hinge mechanism according to claim 12, wherein the lock member includes two lock blocks, the first elastic member is disposed between the two lock blocks, and an elastic force direction of the first elastic member is directed in a direction in which the two lock blocks are away from each other;

the key is provided with two second inclined planes which are respectively matched with the first inclined planes of the locking blocks.

14. A hinge mechanism according to claim 12 or 13, wherein a notch is provided in a side wall of the locking member, and when the locking piece abuts against the locking member, the locking piece can be snapped into the notch, so that the locking assembly is in the locked state.

15. A hinge mechanism according to claim 14, wherein the notches are two and are provided on opposite sides of the locking member.

16. A hinge mechanism according to any one of claims 12-15, wherein the fixing bracket has a through hole for the lock block to pass through, and when the two lock blocks are separated from each other by the elastic force of the first elastic member, the side wall of the lock block abuts against the edge of the through hole.

17. A hinge mechanism according to any one of claims 1-16, wherein the urging member includes a first flap, a second flap, and a second elastic member disposed between the first flap and the second flap, the first flap abuts against the second end of the rocker unit, and the second elastic member is configured to apply an elastic force to the first flap so that the first flap urges the rocker unit to rotate.

18. A hinge mechanism according to claim 17, further comprising two first positioning rods, wherein the two first positioning rods and the two swing rod units are respectively and correspondingly arranged, the first positioning rods sequentially penetrate through the fixing bracket, the swing rod unit and the thrust assembly to form the rotating shaft of the swing rod unit, the first end of each positioning rod is connected to one side of the fixing bracket, which is far away from the swing rod unit, and the second end of each positioning rod is fixed to one side of the thrust assembly, which is far away from the swing rod unit.

19. A hinge mechanism according to claim 17, wherein the thrust assembly further comprises a third baffle, the third baffle is arranged on a side of the second baffle facing away from the second elastic member, the third baffle is provided with a sliding groove, and the second end of the first positioning rod is clamped in the sliding groove.

20. A hinge mechanism according to claim 18, wherein the second resilient member is fitted over the positioning rod.

21. A hinge mechanism according to any one of claims 1-20, wherein the rotation assembly further comprises a synchronizing wheel unit including first and second gears that mesh with each other;

and the side wall of the swing rod unit is provided with an engaging part, and the first gear and the second gear are respectively engaged with the engaging parts of the two swing rod units so as to enable the two swing rod units to synchronously rotate.

22. A hinge mechanism according to any one of claims 1-20, wherein the side wall of the swing lever unit is provided with a connecting portion protruding in a radial direction of the swing lever unit, the connecting portion being adapted to be connected to a frame of the terminal device.

23. A terminal device comprising two frame bodies and a hinge mechanism according to any one of claims 1 to 22, wherein the two swing link units of the hinge mechanism are respectively connected to the two frame bodies so as to allow the two frame bodies to rotate relative to each other.