A hinge structure

Abstract

The application provides a hinge structure, which comprises a rotating sleeve, a connecting sheet connected with the rotating sleeve, a central shaft fixedly connected with the rotating sleeve, and an assembly sleeved on one side of the central shaft, wherein the assembly comprises a torsional spring. The hinge structure can solve the problem that the existing hinge structure cannot guarantee the consistency and continuity of the hand following degree during rotation.

Description

Technical Field

[0001] The present application relates to the field of mechanical structures, and in particular to a hinge structure. Background Art

[0002] With the rapid development of wireless communication technology and information processing technology, smart devices with screens such as laptops and foldable tablets have become common electronic products in our lives.

[0003] Taking laptops as an example, a hinge structure is currently commonly used to connect the screen and the main unit. Current hinge structures are typically purely damping structures, implemented using a compression spring and a locking nut. This damping structure, due to the gravitational torque during screen rotation, can cause a pause in the screen's rotation, affecting the consistency and coherence of the hand's rotation.

[0004] Nowadays, users are increasingly demanding consistency in the feel of the screen during rotation. How to ensure the consistency of the feel during rotation as much as possible has become an issue worthy of attention. Summary of the Invention

[0005] The present application provides a hinge structure to solve the problem that the existing hinge structure cannot ensure the consistency and continuity of the hand tracking during the rotation process.

[0006] In a first aspect, the present application provides a hinge structure, which includes a rotating sleeve, a connecting plate connected to the rotating sleeve; a central shaft fixedly connected to the rotating sleeve, and a component is sleeved on one side of the central shaft, and the component includes a torsion spring; in the rotational stroke of the load connected to the connecting plate, the direction of the torque of the torsion spring is opposite to the direction of the gravitational moment corresponding to the load.

[0007] Existing hinge structures experience a pause during the rotational travel of a closed laptop, resulting in poor follow-through. The above design takes into account the changing gravitational moment associated with the load during the rotational travel. The torque of the torsion spring and the gravitational moment always remain in opposite directions, offsetting the gravitational moment and thus reducing its impact.

[0008] In a possible design, one side of the torsion spring includes a first connecting column, and the first connecting column cooperates with a connecting hole on the rotating sleeve.

[0009] In one possible design, the assembly further includes a structural member and a connecting member;

[0010] The torsion spring is located in the cavity of the structural member;

[0011] One side of the torsion spring includes a first connecting post, and the other side of the torsion spring includes a second connecting post;

[0012] The structural member is provided with a first connecting hole, so that the first connecting column matches the first connecting hole;

[0013] The connecting piece is provided with a second connecting hole, so that the second connecting column is matched with the second connecting hole.

[0014] In one possible design, the connecting member includes a first hole, the cross-section of the first hole corresponds to a pattern that is the same as the pattern corresponding to the end surface of the end of the central shaft, and the central shaft passes through the first hole, so that when the central shaft rotates, the central shaft drives the torsion spring to rotate through the connecting member;

[0015] The structural member includes a second hole, the cross-section of the second hole corresponds to a figure different from the figure corresponding to the end face of the end of the central shaft, and the second hole ensures that when the central shaft rotates, the structural member does not rotate with the central shaft.

[0016] In a possible design, during the rotation of the hinge structure, an absolute value of a difference between a magnitude of the torque of the torsion spring and a magnitude of the gravity moment corresponding to the load is smaller than a preset threshold.

[0017] With the above design, the torque of the torsion spring offsets the moment of gravity, and thus the hand-following ability is significantly improved during the rotational stroke.

[0018] In a possible design, the gravity moment of the load is determined by the vertical distance from the projection point of the center of the load on the horizontal plane to the central axis and the mass of the load.

[0019] In a possible design, the torque of the torsion spring is determined by the angle at which the torsion spring rotates about the central axis and the elastic modulus of the torsion spring material.

[0020] In a possible design, the torsion spring may be a nonlinear torsion spring or a linear torsion spring.

[0021] In a possible design, the torque at any position in the torque curve of the nonlinear torsion spring is equal in magnitude to the gravity torque at a corresponding position in the gravity torque curve of the load, but opposite in direction.

[0022] With the above design, during the entire rotational stroke, the torque of the torsion spring is equal in magnitude to the gravity moment but opposite in direction, thereby achieving complete offset of the gravity moment by the torque of the torsion spring.

[0023] In a possible design, for the starting position and the end position of the rotation stroke, the corresponding torque in the torque curve of the linear torsion spring and the corresponding gravity moment in the gravity moment curve of the load are equal in magnitude and opposite in direction.

[0024] By adopting the above design, it is possible to achieve partial offsetting of the gravity moment by the torque of the torsion spring throughout the entire rotation stroke.

[0025] In a second aspect, the present application provides a laptop computer, comprising a hinge structure of any possible design as described in the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0027] Figure 1 A schematic diagram of a hinge structure provided in an embodiment of the present application;

[0028] Figure 2 An exploded diagram of a possible form of a component provided in an embodiment of the present application;

[0029] Figure 3 An exploded view of another possible form of a component provided in an embodiment of the present application;

[0030] Figure 4 A schematic diagram of an end surface of a central axis provided in an embodiment of the present application;

[0031] Figure 5 A cross-sectional view of a connector provided in an embodiment of the present application;

[0032] Figure 6 A cross-sectional view of a component provided in an embodiment of the present application;

[0033] Figure 7 A schematic diagram of the distance from the center to the central axis of a load provided in an embodiment of the present application;

[0034] Figure 8 A schematic diagram of a torque curve of a nonlinear torsion spring and a gravity torque curve of a load provided in an embodiment of the present application;

[0035] Figure 9 A schematic diagram of a torque curve of a linear torsion spring and a gravity torque curve of a load provided in an embodiment of the present application. DETAILED DESCRIPTION

[0036] To make the objectives, technical solutions, and advantages of this application more clear, this application will be further described in detail below with reference to the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0037] The application scenarios described in this application are intended to more clearly illustrate the technical solutions of the embodiments of this application and do not constitute a limitation on the technical solutions provided in this application. Ordinary technicians in this field will know that with the emergence of new application scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar problems.

[0038] The embodiments of the present application provide a hinge structure to solve the problem of inconsistent hand feel during rotation of the existing rotating shaft structure.

[0039] Figure 1 A schematic diagram of a hinge structure provided in this application.

[0040] The hinge structure includes: a rotating sleeve 400, a connecting piece 100 connected to the rotating sleeve 400, a central shaft 200 fixedly connected to the rotating sleeve 400, and a component 300 sleeved on the central shaft, wherein the component includes a torsion spring 320;

[0041] During the rotational stroke of the load connected to the connecting piece 100 , the direction of the torque of the torsion spring 320 is opposite to the direction of the gravity moment corresponding to the load.

[0042] For example, the connecting piece 100 can be connected to a screen of a laptop computer.

[0043] The structure of the assembly 300 is described below with reference to the accompanying drawings:

[0044] In one possible implementation, Figure 2 As shown, one side of the torsion spring 320 includes a first connecting column 321, and the first connecting column 321 can cooperate with the connecting hole 410 on the rotating sleeve 400.

[0045] like Figure 2 As shown, assembly 300 further includes a structural member 310 having a first connecting hole 311. A second connecting post 322 is provided on the other side of torsion spring 320, and second connecting post 322 is adapted to engage with first connecting hole 311. Furthermore, structural member 310 further includes a second hole 312. The cross-section of second hole 312 differs from the end surface of central shaft 200, ensuring that structural member 310 does not rotate with central shaft 200 when central shaft 200 rotates.

[0046] When the user controls the load connected to the connecting piece 100 to rotate, the connecting piece 100 drives the rotating sleeve 400, and the rotating sleeve 400 drives the central shaft 200 and the torsion spring 320 to rotate, causing the torsion spring 320 to twist a certain angle, generating torque, and the direction of the torque is opposite to the direction of the gravitational moment corresponding to the load.

[0047] In another possible implementation, Figure 3 As shown, assembly 300 further includes a structural member 310 and a connecting member 330. A torsion spring 320 is located in the cavity of structural member 310. One side of torsion spring 320 includes a first connecting post 321. Structural member 310 is provided with a first connecting hole 311, and first connecting post 321 can mate with first connecting hole 311. The other side of torsion spring 320 includes a second connecting post 322. Connecting member 330 is provided with a second connecting hole 332, and second connecting post 322 can mate with second connecting hole 332.

[0048] like Figure 3 As shown, the connecting member 330 includes a first hole 331. The cross-section of the first hole 331 corresponds to the same pattern as the end surface of the central shaft 200. The central shaft 200 passes through the first hole 331. When the central shaft 200 rotates, the central shaft 200 drives the torsion spring 320 to rotate through the connecting member 330.

[0049] The structural member 310 includes a second hole 312 . The cross-section of the second hole 312 corresponds to a different pattern from the end surface of the central shaft 200 , so that when the central shaft 200 rotates, the structural member 310 does not rotate with the central shaft 200 .

[0050] Among them, Figure 3 As shown, the structural member 310 may be square or have other shapes as a whole, which is not limited in this application.

[0051] like Figure 4 As shown, the end face of the central axis 200 is the remaining portion of a circle after a portion is symmetrically cut off, that is, Figure 4 The shape enclosed by the solid line. The dotted line represents the portion where the center axis has been cut away.

[0052] like Figure 5 As shown, the connecting member 330 includes a first hole 331. The cross-section of the first hole 331 corresponds to the same figure as the end face of the central axis 200, which is the remaining portion of a circle after a portion is symmetrically cut away.

[0053] Figure 6 For Figure 3 Corresponding cross-sectional view of assembly 300 .

[0054] For example, when the user controls the load connected to the connecting piece 100 to rotate, the connecting piece 100 drives the rotating sleeve 400, the rotating sleeve 400 drives the central shaft 200, the central shaft 200 drives the connecting member 330 to rotate, and the connecting member 330 drives the torsion spring 320, so that the torsion spring 320 twists a certain angle to generate torque, and the direction of the torque is opposite to the direction of the gravitational moment corresponding to the load.

[0055] Furthermore, during the rotational travel of the load connected to the connecting piece 100, the absolute value of the difference between the torque of the torsion spring 320 and the gravity moment corresponding to the load is less than a preset threshold. The rotational travel of the load connected to the connecting piece 100 can be understood as the entire process from the start to the end of the rotation of the load connected to the connecting piece 100.

[0056] For example, assume that connecting piece 100 is connected to the laptop screen, and structural member 310 is connected to the laptop computer. The initial state is that the laptop screen is in contact with the laptop computer, i.e., the angle between the plane of the laptop screen and the plane of the laptop computer is 0 degrees. The final state is that the angle between the plane of the laptop screen and the plane of the laptop computer is a first angle. For example, the first angle can be an obtuse angle, the specific angle of which can be determined based on user needs. At this point, the rotational travel of the load connected to connecting piece 100 is the entire process of the angle between the plane of the laptop screen and the plane of the laptop computer changing from 0 degrees to the first angle.

[0057] For example, when the difference between the torque of the torsion spring 320 and the gravity moment corresponding to the load is x N·m, and the preset threshold value is y N·m, where x<y, the effect of eliminating part of the gravity moment's influence can be achieved; when the difference between the torque of the torsion spring 320 and the gravity moment corresponding to the load is 0 N·m, and the preset threshold value is y N·m, the effect of eliminating all gravity moment's influence can be achieved.

[0058] like Figure 7 As shown, the gravity moment corresponding to the load is determined by the vertical distance OA from the projection point A of the center of the load on the horizontal plane to the central axis O, and the mass of the load. Assume that the connecting piece 100 is connected to the screen of the laptop computer, and the structural member 310 is connected to the host of the laptop computer, as shown in FIG. Figure 7 As shown, at this time, the angle between the plane where the screen of the laptop computer connected to the connecting piece 100 is located and the plane where the main body of the laptop computer connected to the structural member 310 is located is 180 degrees.

[0059] For example, gravity moment M=G×L OA =mgL OA Where G represents the weight of the load, L OAIt represents the vertical distance from the projection point A of the load center on the horizontal plane to the central axis O, m is the mass of the load, and g is the acceleration due to gravity. For example, when the gravity G = 20N, L OA When =0.3m, the gravity moment M=20N×0.3m=6N·m.

[0060] The torque of the torsion spring 320 is determined by the angle at which the torsion spring rotates along the central axis 200 and the elastic modulus of the torsion spring material.

[0061] For example, when the material of the torsion spring 320 is SW carbon steel, the elastic modulus of SW carbon steel is relatively large, the elastic tension and elastic endurance of the torsion spring 320 are also relatively strong, and the torque for rotating at the same angle also increases accordingly.

[0062] For example, when the torsion spring 320 rotates 120° and 80° along with the central shaft 200 , the torque of the torsion spring 320 when rotating 120° is greater than the torque of the torsion spring 320 when rotating 80°.

[0063] The torsion spring 320 may be a nonlinear torsion spring or a linear torsion spring.

[0064] In one possible implementation, if torsion spring 320 is a nonlinear torsion spring, the torque at any position in the nonlinear torsion spring's torque curve and the gravity torque at the corresponding position in the load's gravity torque curve can be equal in magnitude and opposite in direction. The load's gravity torque curve can also be referred to as the load's gravity torque variation curve, and the nonlinear torsion spring's torque curve can also be referred to as the nonlinear torsion spring's torque variation curve.

[0065] For example, it is assumed that the connecting piece 100 is connected to the screen of the notebook computer, and the structural member 310 is connected to the host of the notebook computer. Figure 8 As shown, during the rotational travel of the load connected to the connecting piece 100, a load gravity moment curve 8.1 is calculated. Based on load gravity moment curve 8.1, the magnitude of the load gravity moment corresponding to each rotation angle is taken as the negative value, which is used as the magnitude of the torque of the nonlinear torsion spring, and a nonlinear torsion spring torque curve 8.2 is designed. Furthermore, based on load gravity moment curve 8.1 and nonlinear torsion spring torque curve 8.2, the difference between the magnitude of the torque and gravity moment corresponding to each rotation angle is determined to obtain a comprehensive damping fluctuation curve 8.3. The rotation angle refers to the angle between the plane of the connecting piece 100 and the plane of the structural member 310.

[0066] In one possible implementation, if the torsion spring 320 is a linear torsion spring, for the starting position and the end position of the rotation stroke, the corresponding torque in the torque curve of the linear torsion spring and the corresponding gravity torque in the gravity torque curve of the load are equal in magnitude and opposite in direction.

[0067] For example, it is assumed that the connecting piece 100 is connected to the screen of the notebook computer, and the structural member 310 is connected to the host of the notebook computer. Figure 9 As shown, during the rotational travel of the load connected to the connecting piece 100, a load gravity moment curve 9.1 is calculated. Based on this load gravity moment curve 9.1, a torque curve 9.2 for the linear torsion spring is designed. Furthermore, based on this load gravity moment curve 9.1 and the linear torsion spring torque curve 9.2, the difference between the torque and gravity moment corresponding to each rotation angle is determined to obtain a comprehensive damping fluctuation curve 9.3. The rotation angle refers to the angle between the plane of the connecting piece 100 and the plane of the structural member 310.

[0068] When designing the torque curve 9.2 of the linear torsion spring based on the gravity torque curve, the two-point method commonly used in the field of torsion spring design can be used.

[0069] For example, the two-point method uses the gravity moment at the start of the rotational stroke as the minimum torque of the linear torsion spring, and the gravity moment at the end of the rotational stroke as the maximum torque of the linear torsion spring. This serves as the basis for designing the linear torsion spring. The slope of the linear torsion spring's torque curve is determined based on these minimum and maximum values, thereby obtaining the linear torsion spring's torque curve.

[0070] The present application also provides a notebook computer comprising: Figure 1 The hinge structure shown.

[0071] In addition, the hinge structure provided in this application can be applied to foldable mobile phones, smart TVs and other smart devices with angle adjustment requirements, and this application does not limit this.

[0072] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A hinge structure, characterized in that: include: A rotating sleeve, a connecting piece connected to the rotating sleeve; a central shaft fixedly connected to the rotating sleeve, a component sleeved on one side of the central shaft; the component including a torsion spring; During the rotational travel of the load connected to the connecting piece, the direction of the torque of the torsion spring is opposite to the direction of the gravity moment corresponding to the load; The assembly also includes structural members and connecting members; The torsion spring is located in the cavity of the structural member; One side of the torsion spring includes a first connecting post, and the other side of the torsion spring includes a second connecting post; The structural member is provided with a first connecting hole, so that the first connecting column matches the first connecting hole; The connecting member is provided with a second connecting hole, so that the second connecting column is matched with the second connecting hole; The connecting member includes a first hole, the cross-section of the first hole corresponds to a pattern that is the same as the pattern corresponding to the end surface of the end of the central shaft, and the central shaft passes through the first hole, so that when the central shaft rotates, the central shaft drives the torsion spring to rotate through the connecting member; The structural member includes a second hole, the cross-section of the second hole corresponds to a figure different from the figure corresponding to the end face of the end of the central shaft, and the second hole ensures that when the central shaft rotates, the structural member does not rotate with the central shaft.

2. The hinge structure according to claim 1, wherein: During the rotation stroke, an absolute value of a difference between a magnitude of the torque of the torsion spring and a magnitude of the gravity moment corresponding to the load is smaller than a preset threshold.

3. The hinge structure according to claim 1, wherein: The gravity moment corresponding to the load is determined by the vertical distance from the projection point of the center of the load on the horizontal plane to the central axis, and the mass of the load.

4. The hinge structure according to claim 1, wherein: The torque of the torsion spring is determined by the angle at which the torsion spring rotates about the central axis and the elastic modulus of the torsion spring material.

5. The hinge structure according to claim 1, wherein: The torsion spring is a nonlinear torsion spring or a linear torsion spring.

6. The hinge structure according to claim 5, wherein: During the rotation stroke, the torque at any position in the torque curve of the nonlinear torsion spring is equal in magnitude to the gravity torque at a corresponding position in the gravity torque curve of the load, but opposite in direction.

7. The hinge structure according to claim 5, wherein: For the starting position and the end position of the rotation stroke, the corresponding torque in the torque curve of the linear torsion spring and the corresponding gravity moment in the gravity moment curve of the load are equal in magnitude and opposite in direction.

8. A notebook computer, characterized in that: The laptop computer comprises the hinge structure according to any one of claims 1 to 7.

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