Hinge and hinge assembly of foldable 3C equipment

Abstract

The invention relates to the technical field of folding equipment, and discloses a hinge and hinge assembly of foldable 3C equipment, which comprises a base and at least two movable parts distributed at intervals in the direction of a first axis, and two groups of torsion control components are movably connected to the base in the direction of a second axis. And each movable part is in sliding connection with at least two inclined force arms of the torsion control assemblies, the two torsion control assemblies are driven by the synchronous driving assembly to move in the opposite directions or in the opposite directions along the second shaft, and rotary driving force arms of the synchronous driving assembly are in sliding connection with the corresponding movable parts in the direction of the first shaft. By combining the rotary driving force arm, the hinging part, the driving piece and the helical tooth transmission structure, efficient and flexible power transmission is achieved, the structure is simple, and the production and maintenance cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of folding devices, and more particularly, to a hinge and a hinge assembly for a foldable 3C device. Background Art

[0002] Foldable 3C devices are popular due to their portability and large screen advantages. They are folded and unfolded through hinges to ensure the stability and smoothness of the screen during the folding and unfolding processes. Foldable display terminals represent the trend of future mobile electronic products, providing a larger display area when unfolded to enhance the viewing experience, and being small and portable when folded.

[0003] However, the hinge mechanisms of existing foldable 3C devices are complex in structure and high in cost, with many components, which not only increases the manufacturing difficulty but also results in high production costs. Summary of the Invention

[0004] In view of this, the present invention provides a hinge and a hinge assembly for a foldable 3C device, aiming to solve the problems existing in the current technology.

[0005] The present invention provides a hinge for a foldable 3C device, including a base and at least two movable members spaced apart in the first axis direction. Two sets of torsion control components are movably connected to the base along the second axis direction, and each of the movable members is slidably connected to at least two inclined force arms of the torsion control components. The two sets of torsion control components move towards or away from each other along the second axis under the drive of a synchronous drive component, and the rotational driving force arm of the synchronous drive component is slidably connected to the corresponding movable member in the first axis direction.

[0006] In some embodiments of the present application, the movable members alternately move between a folded position and a flattened position. When the synchronous drive component drives the torsion control components to move towards each other and the movable members are in the folded position, a conical space is formed between the two movable members; when the synchronous drive component drives the torsion control components to move away from each other, the movable members move to the flattened position.

[0007] In some embodiments of the present application, the torsion control component includes: at least part of the inclined force arm slidably connected to the movable member is movably connected to a linear motion shaft that linearly moves along the second axis. Each inclined force arm and the linear motion shaft respectively control the angle of the inclined force arm after rotating around the linear motion shaft through a torsion control group. At least part of one set of the torsion control groups is fixed to the linear motion shaft, and the other set of the torsion control groups is movably connected to the linear motion shaft and the torsion control group abuts against an elastic member on the linear motion shaft.

[0008] In some embodiments of the present application, there are two linear motion axes, and each linear motion axis is slidably connected to a movable member through an inclined force arm. The structures of the two torque control groups are the same, including a torque control cam and a torque control concave cam that are engaged with each other in a concave-convex manner. Either the torque control cam or the torque control concave cam is provided on the inclined force arm, and the remaining one is movably or fixedly provided on the linear motion axis.

[0009] In some embodiments of the present application, the synchronous drive assembly includes a rotary driving force arm and a driving member. Each movable member is movably connected to a rotary driving force arm hinged to the base in the first axis direction. On the base, there is a driving member that is movably engaged with the rotary driving force arms on opposite sides and drives the torque control assembly to move toward or away from each other along the second axis.

[0010] In some embodiments of the present application, the driving member and the rotary driving force arm are movably engaged such that the movement angle of the movable member from the flattened position to the folded position is greater than 90°; the rotary driving force arm is located between the two torque control assemblies; a space is formed between the two inclined force arms slidably connected to the same movable member, and the driving member has a gap cancellation portion that extends into the space between the two inclined force arms.

[0011] In some embodiments of the present application, each rotary driving force arm is hinged to the base through a hinge portion. There are two driving members distributed along the second axis. A space for accommodating at least part of the driving member is formed between the two hinge portions. At least part of the opposite sides of each driving member and at least part of the outer peripheral surface of the hinge portion are movably connected through a helical gear transmission structure.

[0012] In some embodiments of the present application, the helical gear transmission structure includes a first-handed helical tooth portion and a second-handed helical tooth portion provided on the outer peripheral surface of the hinge portion. The opposite sides of one of the driving members are respectively provided with a first helical tooth mating portion meshing with the first-handed helical tooth portion, and the opposite sides of the other driving member are respectively provided with a second helical tooth mating portion meshing with the second-handed helical tooth portion.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: By combining the rotary driving force arm, the hinge portion, the driving member, and the helical gear transmission structure, the present invention realizes efficient and flexible power transmission. Among them, the rotary driving force arm can effectively utilize the rotary motion to concentrate the power and transmit it to the hinge portion, ensuring the stability and efficiency of power transmission. The hinge portion transmits the power to the two driving members through the helical gear transmission structure and drives the two driving members to move toward or away from each other to achieve synchronous bidirectional driving. It not only has a simple structure and is easy to manufacture, but also significantly reduces the production and maintenance costs.

[0014] On the other hand, the present application also provides a hinge assembly for a foldable 3C device, which includes two sets of the hinges for a foldable 3C device as described above, and the hinge assembly further includes two moving plates, one of the moving plates is movably connected to two of the movable members along the direction of the second axis, and the remaining one of the moving plates is movably connected to the other two of the movable members along the direction of the second axis. A folding limit structure for restricting the further folding of the moving plate when the two moving plates are in the folded position is provided between the moving plate and the movable member, and a flattening limit structure for keeping the moving plate in the flattened position is provided between the moving plate and the rotational driving force arm.

[0015] On the other hand, the present application also provides a foldable 3C device, which includes the hinge for a foldable 3C device as described above or the hinge assembly for a foldable 3C device as described above.

[0016] It can be understood that the hinge assembly for a foldable 3C device and the foldable 3C device in this embodiment have the same beneficial effects as the hinge for a foldable 3C device as described above, and will not be elaborated here. Description of the Drawings

[0017] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings: Figure 1 is a three-dimensional structural schematic diagram of the unfolded position of the hinge for a foldable 3C device provided by an embodiment of the present invention; Figure 2 is a top view of the unfolded position of the hinge for a foldable 3C device provided by an embodiment of the present invention; Figure 3 is a bottom view of the unfolded position of the hinge for a foldable 3C device provided by an embodiment of the present invention; Figure 4 is an exploded view of the hinge for a foldable 3C device provided by an embodiment of the present invention; Figure 5 is a structural schematic diagram of the movable member provided by an embodiment of the present invention; Figure 6 is a structural schematic diagram of the driving member provided by an embodiment of the present invention; Figure 7 is a structural schematic diagram of the rotational driving force arm provided by an embodiment of the present invention; Figure 8 is a structural schematic diagram of the inclined force arm provided by an embodiment of the present invention.

[0018] Figure 9 Schematic three-dimensional structure diagram of the unfolded position of the hinge assembly of the foldable 3C device provided by the embodiment of the present invention; Figure 10 Bottom view of the unfolded position of the hinge assembly of the foldable 3C device provided by the embodiment of the present invention; Figure 11 Schematic three-dimensional structure diagram of the folded position of the hinge assembly of the foldable 3C device provided by the embodiment of the present invention.

[0019] In the figure: 1. Base; 2. Movable part; 21. Force arm groove; 22. Force arm inclined groove; 31. Inclined force arm; 32. Linear motion shaft; 321. Card slot; 34. Elastic member; 35. Torque control cam; 36. Torque control concave cam; 37. Cam limit member; 38. Washer; 4. Synchronous drive assembly; 41. Rotating driving force arm; 412. First helical tooth part with a certain helix direction; 413. Second helical tooth part with a certain helix direction; 42. Driving part; 421. Clearance cancellation part; 422. First helical tooth mating part; 423. Second helical tooth mating part; 5. Moving plate; 6. Conical space. Detailed implementation manners

[0020] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. Hereinafter, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments.

[0021] Embodiment 1

[0022] Referring to Figures 1-8 , this embodiment provides a hinge for a foldable 3C device, including a base 1 and at least two movable parts 2 spaced apart in the first axis X direction. Two sets of torque control components are movably connected to the base 1 along the second axis Y direction, and each movable part 2 is respectively slidably connected to at least two inclined force arms 31 of the torque control components. The two sets of torque control components move towards or away from each other along the second axis Y under the drive of the synchronous drive assembly, and the rotating driving force arm 41 of the synchronous drive assembly is slidably connected to the corresponding movable part 2 in the first axis X direction.

[0023] It can be understood that in this embodiment, the rotational driving force arm 41 of the synchronous driving assembly is slidably connected to the corresponding movable member 2 in the first axis X direction. The two movable members 2 are spaced apart on both sides of the base 1 along the first axis X direction. When the two movable members 2 rotate relatively inwardly, the folding movement of the hinge is realized. When the two movable members 2 rotate relatively outwardly, the flattening movement of the hinge is realized.

[0024] It can be understood that in this embodiment, the synchronous driving assembly is also responsible for driving the two sets of torque control assemblies to move towards or away from each other along the second axis Y direction. The synchronous driving assembly transmits the rotational driving force provided by the two movable members 2 to the torque control assemblies through the rotational driving force arm 41, ensuring that the two sets of torque control assemblies can move towards or away from each other along the second axis Y.

[0025] It can be understood that since the rotational driving force arm 41 of the synchronous driving assembly and the inclined force arm 31 of the torque control assembly are both slidably connected to the corresponding movable member 2 in the first axis X direction, the sliding connection method allows the movable member 2 to have a free movement space in the first axis X direction, realizing the flexible movement and adjustment of the movable member 2 in the first axis X direction.

[0026] In a specific embodiment of the present application, the movable member 2 alternately moves between the folded position and the flattened position. When the synchronous driving assembly drives the torque control assemblies to move towards each other and the movable member 2 is in the folded position, a conical space 6 is formed between the two movable members 2; when the synchronous driving assembly drives the torque control assemblies to move away from each other and the movable member 2 moves to the flattened position.

[0027] In a specific embodiment of the present application, the inclined force arm 31 of the torque control assembly and the rotational driving force arm 41 are distributed at an angle.

[0028] Specifically, the inclined force arms 31 on both sides of the rotational driving force arm 41 corresponding to the same movable member 2 along the second axis Y direction are distributed at an angle with an opening towards the end far from the base 1.

[0029] It can be understood that when the movable member 2 moves alternately between the folded position and the flattened position, the two sets of torsion control components are driven to move towards each other or in opposite directions by the synchronous drive component. When the two sets of torsion control components move towards each other, the inclined force arms 31 of the two sets of torsion control components slidably connected to the same movable member 2 are driven to move towards each other. Since the inclined force arms 31 of the torsion control components on both sides corresponding to the same movable member 2 are distributed at an angle opening towards the end far from the base 1, the inclined force arms 31 of the two sets of torsion control components corresponding to the same movable member 2 apply a force to the movable member 2 in the direction away from the base 1 along the first axis X, that is, the two movable members 2 slide relatively outward along the first axis X. When the two sets of torsion control components move in opposite directions, the inclined force arms 31 of the two sets of torsion control components slidably connected to the same movable member 2 are driven to move in opposite directions, then the inclined force arms 31 of the two sets of torsion control components corresponding to the same movable member 2 apply a force to the movable member 2 in the direction close to the base 1 along the first axis X, that is, the two movable members 2 slide relatively inward along the first axis X.

[0030] It can be understood that in this embodiment, the two sets of torsion control components are driven to move towards each other or in opposite directions by the synchronous drive component, so as to realize the relative sliding between the two movable members 2. When sliding relatively outward, a conical space 6 is formed between the two movable members 2 and the base 1. When sliding relatively inward, the two movable members 2 and the base 1 are flattened. The formation of the conical space 6 avoids the insufficient screen space caused by the folding of the 3C device terminal, and thus ensures that the screen is not squeezed or stretched during the whole bending process.

[0031] In a specific embodiment of the present application, the torsion control component includes: at least part of the inclined force arm 31 slidably connected to the movable member 2 is movably connected to a linear motion shaft 32 linearly moving along the second axis Y. Each inclined force arm 31 and the linear motion shaft 32 respectively control the angle of the inclined force arm 31 rotating around the linear motion shaft 32 through a torsion control group. At least part of one set of torsion control groups is fixed to the linear motion shaft 32, and the other set of torsion control groups is movably connected to the linear motion shaft 32 and the torsion control group abuts against an elastic member 34 on the linear motion shaft 32.

[0032] In a specific embodiment of the present application, the inclined force arm 31 linearly moves between at least part fixed to the linear motion shaft 32 and the elastic member 34. The two sets of torsion control groups are symmetrically distributed along the first axis X perpendicular to the second axis Y. One end of the linear motion shaft 32 far from the elastic member 34 is movably connected to the base 1.

[0033] Specifically, in this embodiment, one end of the linear motion shaft 32 in the torque control assembly, which is away from the elastic member 34, is movably connected to the base 1. When the torque control assembly moves in the opposite or same direction along the second axis Y under the drive of the synchronous drive assembly, the linear motion shaft 32 provides a moving path for the torque control assembly. When the torque control assembly moves in the same direction along the second axis Y, the inclined force arms 31 slidably connected to both sides of each movable member 2 in the second axis Y direction move in the same direction on the linear motion shaft 32. When the torque control assembly moves in the opposite direction along the second axis Y, the inclined force arms 31 slidably connected to both sides of each movable member 2 in the second axis Y direction move in the opposite direction on the linear motion shaft 32.

[0034] Specifically, in this embodiment, the torque control group in the torque control assembly is responsible for adjusting the angle of rotation of the inclined force arm 31 around the linear motion shaft 32. One part is fixed to the linear motion shaft 32, and the other part is movably connected to the linear motion shaft 32 and interacts with the elastic member 34. The elastic member 34 abuts against the torque control group on the linear motion shaft 32 and assists in adjusting the angle of the inclined force arm 31 through its elastic characteristics to ensure the stability and accuracy of the adjustment.

[0035] Specifically, the elastic member 34 refers to a material or device with elasticity, preferably a spring.

[0036] It can be understood that in this embodiment, the inclined force arm 31 is used to transmit and adjust the torque. Through the action of the torque control group, it can rotate around the linear motion shaft 32, thereby achieving precise control of the torque. At least part of the inclined force arm 31 is slidably connected to the movable member 2, allowing it to move in a specific direction. The linear motion shaft 32 is a shaft that moves linearly along the second axis Y, providing a fixed reference point and a moving path for the inclined force arm 31. The sliding connection provides the degree of freedom for the inclined force arm 31 to move within a certain range, and the linear motion shaft 32 provides a stable reference benchmark for the rotation of the inclined force arm 31. The linear motion shaft 32 performs linear motion in the second axis Y direction, thereby driving the connected inclined force arm 31 to move in the second axis Y direction. At the same time, the inclined force arm 31 is slidably connected to the movable member 2, ensuring that the inclined force arm 31 is not restricted by the movable member 2 when moving in the second axis Y direction.

[0037] It can be understood that in this embodiment, the torque control assembly realizes the flexible movement of the inclined force arm 31 through the cooperation of the sliding connection and the linear motion shaft 32. The torque control group works together with the elastic member 34 through fixed and movable connection methods to precisely adjust the angle of the inclined force arm 31, thereby achieving fine control of the torque.

[0038] Specifically, a washer 38 is movably arranged on each linear motion axis 32. The washer 38 is located at one end of the elastic member 34 away from the torsion control group, and the two washers 38 are integrally connected.

[0039] It can be understood that in this embodiment, by installing the washer 38 on each linear motion axis 32 and matching it with the elastic member 34 and the torsion control group, it can ensure that the hinge can maintain the best performance under different load conditions, extend the service life of the equipment and reduce the maintenance cost. Designing the washer 38 as an integral structure can reduce the error in the assembly process and improve the stability and consistency of the hinge.

[0040] In a specific embodiment of the present application, there are two linear motion axes 32, and each linear motion axis 32 is slidably connected to a movable member 2 through an inclined force arm 31 respectively. The structures of the two torsion control groups are the same, including a torsion control cam 35 and a torsion control cam groove 36 that are in concave-convex fit with each other. Either the torsion control cam 35 or the torsion control cam groove 36 is arranged on the inclined force arm 31, and the remaining one is movably arranged or fixedly arranged on the linear motion axis 32.

[0041] It can be understood that in this embodiment, the torsion control group realizes the precise angle adjustment of the inclined force arm 31. Specifically, the movable member 2 drives the inclined force arm 31 to rotate on the linear motion axis 32, so that the control cam and the control cam groove rotate relative to each other. The inclined force arm 31 moves on the linear motion axis 32, and the elastic member 34 is forced to perform a compression motion. When the inclined force arm 31 finishes rotating on the linear motion axis 32, the restoring force of the elastic member 34 makes the control cam and the control cam groove relatively clamped to achieve angle fixation.

[0042] It can be understood that in this embodiment, each movable member 2 is slidably connected to at least two inclined force arms 31 of the torsion control assembly respectively, and each movable member 2 is slidably connected to the two torsion control assemblies through the inclined force arms 31. Therefore, the two movable members 2 are slidably connected to at least eight inclined force arms 31, and the eight inclined force arms 31 realize angle adjustment through the torsion control group. That is, in this embodiment, by slidably connecting each movable member 2 to at least two inclined force arms 31 and ensuring that each torsion control assembly is connected to the two movable members 2, multi-point connection and distributed torque transmission are achieved, so that a single hinge mechanism can generate greater torque and improve the stability and reliability of the overall system.

[0043] Specifically, the setting methods of the torsion control group in this embodiment include the following two: The first way: A torsion control cam 35 is respectively and fixedly arranged on each linear motion axis 32, and two torsion control cams 35 are integrally connected and located on the side far from the elastic member 34. A torsion control cam 35 is respectively and movably connected to each linear motion axis 32, two torsion control cams 35 are integrally connected and the elastic member 34 acts on the outer side of the torsion control cam 35.

[0044] The second way: A cam limit member 37 is respectively and fixedly arranged on each linear motion axis 32, and the torsion control cam 35 abuts against the cam limit member 37. A card slot 321 is respectively arranged on each linear motion axis 32, the cam limit member 37 is stuck in the card slot 321, and two cam limit members 37 are integrally connected. A torsion control cam 35 is respectively and movably connected to each linear motion axis 32, two torsion control cams 35 are integrally connected and the elastic member 34 acts on the outer side of the torsion control cam 35.

[0045] In a specific embodiment of the present application, the synchronous drive assembly includes a rotary driving force arm 41 and a driving member 42. Each movable member 2 is respectively and movably connected to a rotary driving force arm 41 hinged to the base 1 in the first axis X direction, and a driving member 42 is arranged on the base 1 and is respectively and movably matched with the rotary driving force arm 41 on the opposite sides to drive the torsion control assembly to move towards or away from each other along the second axis Y.

[0046] It can be understood that in this embodiment, the driving member 42 cooperates with the rotary driving force arm 41 to push the movable member 2 to move.

[0047] It can be understood that in this embodiment, the rotary driving force arm 41 is used to convert the rotary motion into a linear motion, so as to drive the torsion control assembly to move through the driving member 42. Under the action of the driving member 42, the torsion control assembly moves towards or away from each other along the second axis Y direction, and through the cooperation of the rotary driving force arm 41, precise control of the torque is achieved.

[0048] Specifically, the driving member 42 is arranged on the base 1 and, through cooperation with the rotary driving force arm 41, pushes the movable member 2 to move towards or away from each other along the second axis Y direction.

[0049] In a specific embodiment of the present application, the rotary driving force arms 41 movably connected to the movable member 2 are distributed at intervals, and the rotary driving force arms 41 connected to the movable member 2 are symmetrically distributed with respect to the second axis Y.

[0050] In a specific embodiment of the present application, each movable member 2 is respectively and movably connected to two rotary driving force arms 41 in the first axis X direction.

[0051] It can be understood that the rotational driving force arms 41 are spaced apart on the movable member 2 and symmetrically distributed about the second axis Y. By spacing and symmetrically distributing the rotational driving force arms 41 on the movable member 2, the uniform transmission of force and the balance of the system can be ensured. At the same time, each movable member 2 is movably connected to two rotational driving force arms 41 in the first axis X direction, further enhancing the flexibility and response speed of the hinge, not only improving the mechanical efficiency but also reducing vibrations and wear caused by asymmetric force distribution. In addition, through the symmetric distribution design, the control can be simplified, and the reliability and durability can be improved.

[0052] In a specific embodiment of the present application, a force arm groove 21 for inserting the rotational driving force arm 41 is provided on the movable member 2, and a force arm inclined groove 22 for inserting the inclined force arm 31 is provided on the movable member 2.

[0053] It can be understood that in this embodiment, dedicated force arm grooves 21 and force arm inclined grooves 22 are provided on the movable member 2 for accommodating the rotational driving force arm 41 and the inclined force arm 31 respectively, so that the rotational driving force arm 41 and the inclined force arm 31 can accurately move within the predetermined paths or angular ranges of the force arm grooves 21 and the force arm inclined grooves 22, thereby realizing the effective driving of other components. The force arm grooves 21 and the force arm inclined grooves 22 not only provide physical support but also ensure the stability and accuracy of the force arms during movement.

[0054] In a specific embodiment of the present application, the driving member 42 and the rotational driving force arm 41 are movably matched such that the movement angle of the movable member 2 from the flattened position to the folded position is greater than 90°; the rotational driving force arm 41 is located between two sets of torsion control components; a space is formed between the two inclined force arms 31 slidably connected to the same movable member 2, and the driving member 42 has a clearance cancellation portion 421 extending into the space between the two inclined force arms 31.

[0055] Specifically, in this embodiment, the clearance cancellation portion 421 of the driving member 42 is provided between the portions where the two inclined force arms 31 are connected to the linear motion axis 32, and the linear motion axis 32 passes through the clearance cancellation portion 421 of the driving member 42 and is slidably connected to the base 1.

[0056] It can be understood that in this embodiment, the driving member 42 cooperates with the rotational driving force arm 41 to enable the movable member 2 to move by more than 90°, endowing the hinge with a large movement range and flexibility. Since the rotational driving force arm 41 is located between the torsion control components, it ensures that the rotational driving force arm 41 can convert the rotational driving force into a linear driving force to drive the torsion control components on both sides to move towards or away from each other. A specific space is formed between the two inclined force arms 31 slidably connected to the same movable member 2, and the clearance cancellation portion 421 of the driving member 42 extends into it. The linear motion shaft 32 passes through the clearance cancellation portion 421 and is slidably connected to the base 1, which helps to reduce friction and vibration during movement and improve the overall performance of the hinge.

[0057] In a specific embodiment of the present application, each rotational driving force arm 41 is respectively hinged to the base 1 through a hinge portion. There are two driving members 42 distributed along the second axis Y. A space for accommodating at least part of the driving member 42 is formed between the two hinge portions. At least part of the opposite sides of each driving member 42 and at least part of the outer peripheral surface of the hinge portion are movably connected through a helical gear transmission structure.

[0058] In a specific embodiment of the present application, the helical gear transmission structure includes a first helical tooth portion 412 and a second helical tooth portion 413 provided on the outer peripheral surface of the hinge portion. The first helical tooth portion 412 and the second helical tooth portion 413 have opposite helical directions. First helical tooth mating portions 422 meshing with the first helical tooth portion 412 are respectively provided on the opposite sides of one driving member 42, and second helical tooth mating portions 423 meshing with the second helical tooth portion 413 are respectively provided on the opposite sides of the other driving member 42.

[0059] Specifically, the linear motion shaft 32 in each torsion control component is slidably connected to the base 1 and extends into the hinge portion where the rotational driving force arm 41 is hinged to the base 1. The rotational driving force arm 41 rotates around the base 1 on the linear motion shaft 32 and converts the rotational driving force into a linear driving force, thereby achieving flexible power transmission. The two driving members 42 are distributed along the second axis Y and are connected to the hinge portion of the rotational driving force arm 41 through a helical gear transmission structure. The helical gear transmission structure realizes power transmission through helical gears. The helical gear transmission structure includes a first helical tooth portion 412 and a second helical tooth portion 413 provided on the outer peripheral surface of the hinge portion. The first helical tooth portion 412 and the second helical tooth portion 413 have opposite helical directions. When meshing with the first helical tooth mating portions 422 and the second helical tooth mating portions 423 of the two driving members 42, they drive the two driving members 42 to move towards or away from each other.

[0060] It can be understood that in this embodiment, by combining the rotational driving force arm 41, the hinge portion, the driving member 42, and the helical gear transmission structure, efficient and flexible power transmission is achieved. Among them, the rotational driving force arm 41 can effectively utilize the rotational motion to concentrate the power and transmit it to the hinge portion, ensuring the stability and efficiency of power transmission. The hinge portion transmits the power to the two driving members 42 through the helical gear transmission structure, and drives the two driving members 42 to move towards each other or in opposite directions, realizing synchronous bidirectional driving. It not only has a simple structure and is easy to manufacture, but also significantly reduces the production and maintenance costs.

[0061] Embodiment 2

[0062] Refer to Figures 9-11 , on the other hand, based on the above-mentioned Embodiment 1, the present application further provides a hinge assembly for a foldable 3C device, including two sets of the hinges for a foldable 3C device as described above, and the hinge assembly further includes two moving plates 5. One of the moving plates 5 is movably connected to two of the moving members 2 along the second axis Y direction, and the remaining one of the moving plates 5 is movably connected to the other two moving members 2 along the second axis Y direction. A folding limit structure is provided between the moving plate 5 and the moving member 2 to limit the further folding of the moving plate 5 when the two moving plates 5 are in the folded position, and a flattening limit structure is provided between the moving plate 5 and the rotational driving force arm 41 to make the moving plate 5 in the flattened position.

[0063] Specifically, in this embodiment, the hinge assembly includes two moving plates 5, which are respectively connected to the moving members 2 in the hinge. The moving plates 5 cooperate with the moving members 2 to realize the folding and unfolding of the device during the folding and unfolding processes. When the two moving plates 5 are in the folded position, the folding limit structure between the moving plate 5 and the moving member 2 restricts the further folding of the moving plate 5, thereby preventing damage or functional failure caused by excessive folding. When the two moving plates 5 are in the flattened position, a flattening limit structure is provided between the moving plate 5 and the rotational driving force arm 41 to ensure that the moving plate 5 can reach the fully flattened position when unfolded, guaranteeing the stability and functionality of the device during use.

[0064] It can be understood that most of the large-screen horizontal folding structure solutions on the market currently usually require three to four sets of hinges to realize the folding and unfolding functions. The complex structure not only increases the manufacturing cost, but also may lead to an increase in the weight of the device and a reduction in reliability. In the single hinge in the hinge assembly of the present application, at least eight inclined force arms 31 are connected, and there can be frictional resistance on the contact surface with the cam of the torque control group. Compared with the current market situation where there are only 4 sets of cam contact surfaces, theoretically, twice the torque can be generated.

[0065] Embodiment 3

[0066] On the other hand, based on the above-mentioned Embodiment 2, the present application further provides a foldable 3C device, including the hinge of the above-mentioned foldable 3C device or the hinge assembly of the above-mentioned foldable 3C device.

[0067] It can be understood that the hinge assembly of the foldable 3C device and the foldable 3C device in this embodiment have the same beneficial effects as the hinge of the above-mentioned foldable 3C device, which will not be elaborated here.

[0068] Those skilled in the art should understand that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories, CD-ROMs, optical memories, etc.) containing computer-usable program codes.

[0069] The present application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowchart and / or block diagram can be implemented by computer program instructions, and the combination of the processes and / or blocks in the flowchart and / or block diagram can also be implemented. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for implementing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0070] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured product including an instruction device, and the instruction device implements the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0071] These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process, and thus the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: it is still possible to modify the specific implementation manners of the present invention or make equivalent replacements, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

1. A hinge for a foldable 3C device, comprising a base (1) and at least two movable members (2) spaced apart in the first axis (X) direction, characterized in that, There are two sets of torsion control components movably connected to the base (1) along the direction of the second axis (Y), and each of the movable members (2) is slidably connected to at least two inclined force arms (31) of the torsion control components. The two sets of torsion control components move towards each other or away from each other along the second axis (Y) under the drive of a synchronous drive component, and the rotational driving force arm (41) of the synchronous drive component is slidably connected to the corresponding movable member (2) in the direction of the first axis (X).

2. The hinge of a foldable 3C device according to claim 1, wherein The movable member (2) alternately moves between a folded position and a flattened position. When the synchronous drive component drives the torsion control components to move towards each other and the movable member (2) is in the folded position, a conical space (6) is formed between the two movable members (2); when the synchronous drive component drives the torsion control components to move away from each other, the movable member (2) moves to the flattened position.

3. The hinge of a foldable 3C device according to claim 1, wherein The torsion control component includes: at least part of the inclined force arm (31) slidably connected to the movable member (2) is movably connected to a linear motion shaft (32) linearly moving along the second axis (Y). Each of the inclined force arms (31) and the linear motion shaft (32) respectively control the angle of the inclined force arm (31) rotating around the linear motion shaft (32) through a torsion control group. At least part of one set of the torsion control groups is fixed to the linear motion shaft (32), and the other set of the torsion control groups is movably connected to the linear motion shaft (32) and the torsion control group abuts against an elastic member (34) on the linear motion shaft (32).

4. The hinge of a foldable 3C device according to claim 3, characterized in that, There are two linear motion shafts (32), and each linear motion shaft (32) is slidably connected to a movable member (2) through the inclined force arm (31). The structures of the two sets of torsion control groups are the same, including a torsion control cam (35) and a torsion control concave cam (36) that are in concave-convex fit with each other. Either the torsion control cam (35) or the torsion control concave cam (36) is provided on the inclined force arm (31), and the remaining one is movably provided or fixedly provided on the linear motion shaft (32).

5. The hinge of a foldable 3C device according to claim 1, characterized in that, The synchronous drive component includes a rotational driving force arm (41) and a driving member (42). Each movable member (2) is movably connected to a rotational driving force arm (41) hinged to the base (1) in the direction of the first axis (X). On the base (1), there is a driving member (42) that is movably engaged with the rotational driving force arm (41) on opposite sides and drives the torsion control component to move towards each other or away from each other along the second axis (Y).

6. The hinge of a foldable 3C device according to claim 5, characterized in that, The driving member (42) and the rotational driving force arm (41) are movably engaged such that the movement angle of the movable member (2) from the flattened position to the folded position is greater than 90°; the rotational driving force arm (41) is located between the two sets of torsion control components; a space is formed between the two inclined force arms (31) slidably connected to the same movable member (2), and the driving member (42) has a clearance cancellation portion (421) extending into the space between the two inclined force arms (31).

7. The hinge of a foldable 3C device according to claim 5, characterized in that, Each of the rotation driving force arms (41) is respectively hinged to the base (1) through a hinge portion. There are two driving members (42) which are distributed along the second axis (Y). A space for accommodating at least part of the driving member (42) is formed between the two hinge portions. At least part of the relative two sides of each driving member (42) and at least part of the outer peripheral surface of the hinge portion are movably connected through a helical gear transmission structure.

8. A hinge for a foldable 3C device according to claim 7, characterized in that, The helical gear transmission structure includes a first helical tooth portion (412) and a second helical tooth portion (413) provided on the outer peripheral surface of the hinge portion. First helical tooth mating portions (422) meshing with the first helical tooth portion (412) are respectively provided on the relative two sides of one of the driving members (42), and second helical tooth mating portions (423) meshing with the second helical tooth portion (413) are respectively provided on the relative two sides of the other driving member (42).

9. A hinge assembly for a foldable 3C device, characterized in that, The hinge assembly includes two hinges of the foldable 3C device according to any one of claims 1-8, and the hinge assembly further includes two moving plates (5). One of the moving plates (5) is movably connected to two of the movable members (2) along the second axis (Y) direction, and the remaining one of the moving plates (5) is movably connected to the other two movable members (2) along the second axis (Y) direction. A folding limit structure for restricting the further folding of the moving plate (5) when the two moving plates (5) are in the folded position is provided between the moving plate (5) and the movable member (2), and a flattening limit structure for enabling the moving plate (5) to be in the flattened position is provided between the moving plate (5) and the rotation driving force arm (41).

10. A foldable 3C device, characterized in that, The foldable 3C device includes a hinge of the foldable 3C device according to any one of claims 1-8; or the foldable 3C device includes a hinge assembly of the foldable 3C device according to claim 9.

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