A new torsion structure applied to an inner folding flexible screen terminal hinge and the hinge

Abstract

This invention provides a novel torque structure and hinge for an inward-folding flexible screen terminal. The torque structure includes a sliding body and a moving cam at its end, and an elastic element. The sliding body is mounted on a rotating arm, with the sliding direction perpendicular to the rotation axis of the rotating arm. A stationary cam is provided at the middle support of the hinge. The elastic element causes the moving cam to press against the stationary cam. When the rotating arm rotates around its rotation axis, friction is generated between the moving cam and the stationary cam. This invention can add additional elastic force output to the rotating arm outside the rotating shaft. By forming a cam engagement with the fixed structure on the middle support, a new source of rotational resistance is provided, increasing the overall torque of the inward-folding flexible screen terminal hinge without increasing the occupation of the shaft. Furthermore, this torque structure can be independently adjusted by adjusting the cam surface, allowing the torque output of the cam to change synchronously or asynchronously with the elastic element on the hinge shaft, meeting different motion and functional requirements.

Description

Technical Field

[0001] This utility model relates to a novel torsion structure and hinge for use in an inward-folding flexible screen terminal, which can be a mobile phone or a laptop computer. Background Technology

[0002] The inward-folding flexible screen terminal includes a left shell, a right shell, and a central support. The hinge of the inward-folding flexible screen terminal is mounted on the central support. Its two side structures are connected to the left and right shells respectively, allowing the left and right shells to rotate, fold, and flatten. The flexible screen is located inside the inward-folding flexible screen terminal. The flattening and folding rotation of the inward-folding flexible screen terminal requires a certain amount of rotational resistance to provide a tactile feel or a hovering function.

[0003] Rotational resistance is primarily provided by elastic elements arranged circumferentially along the sleeve. However, as the requirements for thinness in inward-folding flexible screen terminals continue to increase, the friction area providing positive pressure to the axial elastic elements is constantly being compressed, necessitating an increase in the force value of the elastic elements. Other auxiliary torque-providing structures, such as those using reed clamps, require a longer shaft section. Utility Model Content

[0004] The purpose of this invention is to provide a novel torsion structure and hinge for use in inward-folding flexible screen terminals, which can add a new source of rotational resistance without occupying an additional hinge axis.

[0005] According to a first aspect of the present invention, the present invention adopts the following technical solution,

[0006] A novel torsion structure for a hinge in an inward-folding flexible screen terminal is disclosed. The hinge includes a left-side rotating structure and a right-side rotating structure, each with a rotating arm. The rotating arm is rotatably connected to a central support of the inward-folding flexible screen terminal. The torsion structure includes a sliding body with a movable cam at its end. The sliding body is mounted on the rotating arm and slidably connected to it, with the sliding direction perpendicular to the rotation axis of the rotating arm. A stationary cam is provided on the side edge of the central support facing the rotating arm. The torsion structure also includes an elastic element that drives the sliding body to slide towards the stationary cam, causing the movable cam to press against the stationary cam. When the rotating arm rotates around its rotation axis, friction occurs between the movable cam and the stationary cam.

[0007] Based on the above technical solutions, the present invention can adopt the following further technical solutions or a combination of these further technical solutions:

[0008] The moving cam is provided with a concave surface facing the rotation axis, and the concave surface and the convex part on the stationary cam form a frictional fit during the rotation stroke of the rotating arm.

[0009] The elastic element is disposed between the rotating arm and the sliding body.

[0010] The rotating arm is divided into a first rotating arm and a second rotating arm along the rotation axis. The central support is provided with a boss. The shaft of the rotating arm passes through the boss. The first rotating arm and the second rotating arm are respectively located adjacent to each other on both sides of the boss and are respectively pressed against the two sides of the boss by elastic members provided along the rotation axis. The stationary cam is located on the edge of the boss. The first rotating arm and the second rotating arm are respectively provided with guide structures. The two sides of the sliding body are slidably connected to the guide structures of the first rotating arm and the second rotating arm, respectively.

[0011] The rotating arm is provided with a portion to accommodate the sliding body and a guide structure for the sliding body to slide.

[0012] The sliding body has a plate-like structure.

[0013] According to a second aspect of the present invention, the present invention adopts the following technical solution,

[0014] A hinge for an inwardly folding flexible screen terminal is provided with the aforementioned torsion structure. The rotating arm is a synchronous swing arm in the hinge, and a synchronous reverse rotation connection mechanism is provided between the synchronous swing arms of the left rotating structure and the right rotating structure.

[0015] Furthermore, both the left-side rotating structure and the right-side rotating structure are provided with push-pull connecting rods and sliding mounting seats. The sliding mounting seats are slidably connected to the synchronous swing arm. The two ends of the push-pull connecting rods are respectively rotatably connected to the middle support and the sliding mounting seats. The sliding mounting seats are provided with housing connection parts. The sliding mounting seats in the left-side rotating structure are used to install the left housing of the inward-folding flexible screen terminal, and the sliding mounting seats in the right-side rotating structure are used to install the right housing of the inward-folding flexible screen terminal.

[0016] According to a second aspect of the present invention, the present invention can also adopt the following technical solutions:

[0017] A hinge for an inward-folding flexible screen terminal includes the aforementioned torsion structure. Both the left and right rotating structures are equipped with a synchronous swing arm, a push-pull linkage, and a sliding mounting base. A synchronous reverse rotation connection mechanism connects the synchronous swing arms of the left and right rotating structures. The synchronous swing arm is rotatably connected to a central support, and the sliding mounting base is slidably connected to the synchronous swing arm. The two ends of the push-pull linkage are rotatably connected to the central support and the sliding mounting base, respectively. The sliding mounting base has a housing connection portion. The sliding mounting base in the left rotating structure is used to install the left housing of the inward-folding flexible screen terminal, and the sliding mounting base in the right rotating structure is used to install the right housing of the inward-folding flexible screen terminal. The rotating arm is the synchronous swing arm.

[0018] Furthermore, the synchronous swing arm is divided into a first side rotating arm and a second side rotating arm along its rotation axis. The central support is provided with a boss. The shaft of the rotating arm passes through the boss. The first side rotating arm and the second side rotating arm are respectively located adjacent to each other on both sides of the boss and are respectively pressed against the two sides of the boss by elastic members provided along the rotation axis.

[0019] By adopting the technical solution of this utility model, an additional elastic force output can be added to the rotating arm in addition to the rotating shaft. This, through cam engagement with the fixed structure on the central support, provides a new source of rotational resistance, increasing the overall torque of the hinge of the inward-folding flexible screen terminal without increasing the shaft's footprint. Furthermore, this torque structure can be independently adjusted via the cam surface, allowing for synchronous or asynchronous changes in the torque output by the elastic element on the hinge shaft. This either increases the torque variation due to synchronization or achieves a "leveling" effect due to asynchrony, resulting in diverse torque outputs to meet different motion and functional requirements. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the torsion structure of this utility model.

[0021] Figure 2 for Figure 1 The exploded view of the structure shown also reveals the rotating support plate and sliding mounting base in the hinge of the inward-folding flexible screen terminal.

[0022] Figure 3 This is a schematic diagram illustrating the coordination of the torsion structure of this utility model during the flattening and closing process of the hinge of the inwardly folded flexible screen terminal.

[0023] Figure 4 This is a schematic diagram of an inwardly folding flexible screen terminal in a flattened state when the hinge of this utility model is applied to it.

[0024] Figure 5This is an enlarged top view of one end of the hinge of this utility model when it is in a flattened state and applied to an inwardly folding flexible screen terminal. Figure 4 The end indicated by the mark A in the middle.

[0025] Figure 6 This is a schematic diagram of an inward-folding flexible screen terminal when unfolded.

[0026] Figure 7 for Figure 6 The exploded diagram. Detailed Implementation

[0027] Referring to the accompanying drawings, this utility model provides a novel torsion structure for a hinge of an inward-folding flexible screen terminal. The hinge includes a left-side rotating structure and a right-side rotating structure, each equipped with a rotating arm. The rotating arms are rotatably connected to the central support 100 of the inward-folding flexible screen terminal.

[0028] In this embodiment, both the left and right rotating structures are equipped with a synchronous swing arm 1, a push-pull connecting rod 2, and a sliding mounting base 3. A synchronous reverse rotation connecting mechanism connects the synchronous swing arms 1 of the left and right rotating structures, enabling the synchronous swing arms 1 of the left and right rotating structures to rotate synchronously in opposite directions. The synchronous reverse rotation...

[0029] The synchronous swing arm 1 and the central support 100 are rotatably connected via a shaft 101. The sliding mounting base 2 is slidably connected to the synchronous swing arm 1. The two ends of the push-pull connecting rod 3 are rotatably connected to the central support 100 and the sliding mounting base 2, respectively. The sliding mounting base 2 is provided with a housing connection part, such as a screw connection part. The sliding mounting base 2 in the left rotating structure is used to install the left housing 201 of the inward folding flexible screen terminal, and the sliding mounting base 2 in the right rotating structure is used to install the right housing 202 of the inward folding flexible screen terminal. In this embodiment, the synchronous swing arm 1 serves as the rotating arm.

[0030] The torsion structure includes a sliding body 41 and a movable cam 42 at the end of the sliding body 41. The sliding body 41 is mounted on the synchronous swing arm 1 and slidably connected to the synchronous swing arm 1. The sliding direction of the sliding body 41 is perpendicular to the rotation axis of the synchronous swing arm 1. A stationary cam 102 is provided on the side edge of the middle support 100 facing the synchronous swing arm 1. The torsion structure also includes an elastic element 5, which can be a compression spring. The elastic element 5 drives the sliding body 41 to slide towards the stationary cam 102, causing the movable cam 42 to press against the stationary cam 102. When the synchronous swing arm 1 rotates around its rotation axis, the movable cam 42 and the stationary cam 41 generate friction, providing torque that acts as a rotational resistance.

[0031] The synchronous swing arm 1 is provided with a portion to accommodate the sliding body 41 and a guide structure for the sliding body to slide. In this embodiment, the synchronous swing arm 1 is divided into a first side rotating arm 11 and a second side rotating arm 12 along the rotation axis. Both are rotatably connected to the central support 100 via a rotation shaft 101 and are slidably connected to the sliding mounting base 2. The central support 100 is provided with a boss 103. The rotation shaft 101 passes through the boss 103. The first side rotating arm 11 and the second side rotating arm 12 are respectively located adjacent to each other on both sides of the boss 103 and are respectively pressed against the two sides of the boss 103 by elastic members 6 provided along the rotation axis. In this way, a conventional main torque providing mechanism can be formed by the elastic members 6 and the corresponding cam mechanism 61, and a torque mechanism with pressure provided by the elastic elements 6 is also formed between the first side rotating arm 11 and the second side rotating arm 12 and the two sides of the boss. The stationary cam 102 is located on the edge of the boss 103. It utilizes the width of the boss 103, through which the rotating shaft 101 passes, to provide support without additionally occupying the length of the shaft 101. The first side rotating arm 11 and the second side rotating arm 12 are respectively provided with guide structures 13, such as guide rails. The two sides of the sliding body 41 are slidably connected to the guide structures 13 of the first side rotating arm 11 and the second side rotating arm 12, respectively. The elastic element 5 is disposed between the synchronous swing arm 1 and the sliding body 41. The sliding body 41 has a plate-like structure.

[0032] In this invention, different cam surfaces can be designed as needed. Through the cooperation of the moving cam and the stationary cam, various required torque changes are provided during the rotation stroke, thereby increasing the total torque output of the hinge and providing new torque output changes.

[0033] Preferably, the moving cam 42 is provided with a concave surface 420 facing the center line of the rotating axis 101, and the concave surface 420 and the protrusion 1020 on the stationary cam 102 form a frictional engagement in the rotation stroke of the synchronous swing arm 1, which can have a better frictional support effect and reduce space occupation.

[0034] The 7th reference numeral in the attached diagram represents the rotating mounting plate in the inward-folding flexible screen terminal, which is rotatably connected to the sliding mounting base 3 and movably connected to the synchronous swing arm 1. The 300th reference numeral in the attached diagram represents the flexible screen.

[0035] The above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the protection scope of the present utility model.

[0036] It should be noted that the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. The terms "installed," "set," "equipped with," "connected," "linked," and "sleeve" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] In the description of this utility model, it should be understood that the terms "one end," "the other end," "outer side," "inner side," "horizontal," "end," "length," "outer end," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first" and "second" are also used only for the sake of brevity in description and do not indicate or imply relative importance.

Claims

1. A novel torsional structure for a hinge in an inward-folding flexible screen terminal, the hinge comprising a left-side rotating structure and a right-side rotating structure, each of the left-side and right-side rotating structures being provided with a rotating arm, the rotating arm being rotatably connected to a central support of the inward-folding flexible screen terminal, characterized in that, The torsion structure includes a sliding body and a movable cam at the end of the sliding body. The sliding body is mounted on the rotating arm and slidably connected to the rotating arm. The sliding direction is perpendicular to the rotation axis of the rotating arm. A stationary cam is provided on the side edge of the middle support facing the rotating arm. The torsion structure also includes an elastic element. The elastic element drives the sliding body to slide towards the stationary cam, causing the movable cam to press against the stationary cam. When the rotating arm rotates around its rotation axis, the movable cam and the stationary cam generate friction.

2. The novel torsional structure for use in the hinge of an inward-folding flexible screen terminal as described in claim 1, characterized in that, The moving cam is provided with a concave surface facing the rotation axis, and the concave surface and the convex part on the stationary cam form a frictional fit during the rotation stroke of the rotating arm.

3. The novel torsional structure for use in the hinge of an inward-folding flexible screen terminal as described in claim 1, characterized in that, The elastic element is disposed between the rotating arm and the sliding body.

4. The novel torsional structure for use in the hinge of an inward-folding flexible screen terminal as described in claim 1, characterized in that, The rotating arm is divided into a first rotating arm and a second rotating arm along the rotation axis. The central support is provided with a boss. The shaft of the rotating arm passes through the boss. The first rotating arm and the second rotating arm are respectively located adjacent to each other on both sides of the boss and are respectively pressed against the two sides of the boss by elastic members provided along the rotation axis. The stationary cam is located on the edge of the boss. The first rotating arm and the second rotating arm are respectively provided with guide structures. The two sides of the sliding body are slidably connected to the guide structures of the first rotating arm and the second rotating arm, respectively.

5. A novel torsional structure for use in the hinge of an inward-folding flexible screen terminal as described in claim 1, characterized in that, The rotating arm is provided with a portion to accommodate the sliding body and a guide structure for the sliding body to slide.

6. A novel torsional structure for use in the hinge of an inward-folding flexible screen terminal as described in claim 1, characterized in that, The sliding body has a plate-like structure.

7. A hinge for an inwardly folding flexible screen terminal, characterized in that, The device is provided with a torsion structure as described in claims 1, 2, 3, 4, 5 or 6, wherein the rotating arm is a synchronous swing arm in the hinge, and a synchronous reverse rotation connection mechanism is provided between the synchronous swing arms of the left rotating structure and the right rotating structure.

8. The inward-folding flexible screen terminal hinge as described in claim 7, characterized in that, Both the left and right rotating structures are equipped with push-pull linkages and sliding mounting seats. The sliding mounting seats are slidably connected to the synchronous swing arm. The two ends of the push-pull linkages are rotatably connected to the middle support and the sliding mounting seats, respectively. The sliding mounting seats are provided with housing connection parts. The sliding mounting seats in the left rotating structure are used to install the left housing of the inward folding flexible screen terminal, and the sliding mounting seats in the right rotating structure are used to install the right housing of the inward folding flexible screen terminal.

9. A hinge for an inwardly folding flexible screen terminal, characterized in that, The device includes a torsion structure as described in claims 1, 2, 3, 5, or 6. Both the left and right rotating structures are provided with a synchronous swing arm, a push-pull linkage, and a sliding mounting base. A synchronous reverse rotation connection mechanism connects the synchronous swing arms of the left and right rotating structures. The synchronous swing arm is rotatably connected to the central support, and the sliding mounting base is slidably connected to the synchronous swing arm. Both ends of the push-pull linkage are rotatably connected to the central support and the sliding mounting base, respectively. The sliding mounting base has a housing connection portion. The sliding mounting base in the left rotating structure is used to install the left housing of the inward-folding flexible screen terminal, and the sliding mounting base in the right rotating structure is used to install the right housing of the inward-folding flexible screen terminal. The rotating arm is the synchronous swing arm.

10. The inward-folding flexible screen terminal hinge as described in claim 9, characterized in that, The synchronous swing arm is divided into a first side rotating arm and a second side rotating arm along its rotation axis. The central support is provided with a boss. The shaft of the rotating arm passes through the boss. The first side rotating arm and the second side rotating arm are respectively located adjacent to each other on both sides of the boss and are respectively pressed against the two sides of the boss by elastic members provided along the rotation axis.

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