Electronic equipment and rotating shaft structure

Abstract

The invention discloses electronic equipment and a rotating shaft structure. The electronic equipment comprises a first body; a second body; the rotating shaft structure is rotationally connected with the first body and the second body so as to be switched between a first equipment form and a second equipment form; wherein in the process of switching the first equipment form to the second equipment form, the first body rotates in the first direction relative to the second body, so that the angle between the first body and the second body can be switched from a first relative angle to a second relative angle; the angle between the first body and the second body is a second relative angle; in the process of switching the first relative angle to the second relative angle, the torsion provided by the rotating shaft structure tends to be reduced; after the second relative angle is reached, the first body rotates relative to the second body in the first direction, and the torsion provided by the rotating shaft structure tends to be increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic equipment, and particularly relates to an electronic equipment and a rotating shaft structure. BACKGROUND

[0002] An electronic equipment (such as a notebook computer, a mobile phone, etc.) can be connected in rotation between a first body and a second body through a rotating shaft structure, and the rotating shaft structure provides a torsion force to switch the electronic equipment between different equipment forms by adjusting the relative angle between the first body and the second body. SUMMARY

[0003] Therefore, the present application provides an electronic equipment.

[0004] To achieve the above object, the present application provides the following technical scheme.

[0005] An electronic equipment comprises:

[0006] a first body;

[0007] a second body;

[0008] a rotating shaft structure, which is connected in rotation between the first body and the second body to switch between a first equipment form and a second equipment form;

[0009] wherein,

[0010] during the switching from the first equipment form to the second equipment form, the first body rotates relative to the second body in a first direction to switch the angle between the first body and the second body from a first relative angle to a second relative angle, and in the second equipment form, the angle between the first body and the second body is the second relative angle;

[0011] during the switching from the first relative angle to the second relative angle, the torsion force provided by the rotating shaft structure presents a decreasing trend;

[0012] after reaching the second relative angle, the first body rotates relative to the second body in the first direction, and the torsion force provided by the rotating shaft structure presents an increasing trend.

[0013] Optionally, in the above electronic equipment, the rotating shaft structure comprises:

[0014] a first component, which has a first surface with a first friction surface;

[0015] a second component rotatable relative to the first component to switch the first component and the second component between different relative positions, the second component facing a second face of the first face, the second face having a second friction face;

[0016] a force applying component capable of applying a force to cause the first component and the second component to approach each other;

[0017] wherein,

[0018] at the first relative angle, the first friction face and the second friction face have a first contact area;

[0019] at the second relative angle, the first friction face and the second friction face have a second contact area, the first contact area being greater than the second contact area.

[0020] Optionally, in the electronic device, the first face comprises a first region and a second region which are relatively independent, the first region and the second region are different in distance from a rotation center of the first component, the first friction face comprises a first sub friction face arranged in the first region and a second sub friction face arranged in the second region;

[0021] the second face comprises a third region and a fourth region which are different in distance from a rotation center of the second component, the second friction face comprises a third sub friction face arranged in the third region and a fourth sub friction face arranged in the fourth region;

[0022] in the arrangement direction of the first component and the second component, a projection of the first region and a projection of the third region at least partially overlap, a projection of the second region and a projection of the fourth region at least partially overlap;

[0023] at the first relative angle, the first sub friction face and the third sub friction face have a first sub contact area, the second sub friction face and the fourth sub friction face have a second sub contact area;

[0024] at the second relative angle, the first sub friction face and the third sub friction face have a third sub contact area, the second sub friction face and the fourth sub friction face have a fourth sub contact area, the first sub contact area is greater than the third sub contact area and / or the second sub contact area is greater than the fourth sub contact area.

[0025] Optionally, in the electronic device, the second face comprises a third friction face, the second friction face and the third friction face are different;

[0026] A third relative angle can be formed between the first body and the second body, and the first body can be switched from the second relative angle to the third relative angle during rotation of the first body relative to the second body in the first direction;

[0027] During switching of the second relative angle to the third relative angle, a frictional contact area between the first friction surface and the third friction surface increases, so that the torsion provided by the shaft structure increases.

[0028] Optionally, in the electronic device, at least one of the following is met:

[0029] The electronic device has a third device form, and a fourth relative angle can be formed between the first body and the second body, and the first body can be switched from the third relative angle to the fourth relative angle during rotation of the first body relative to the second body in the first direction; during switching of the third relative angle to the fourth relative angle, a frictional contact area between the first friction surface and the third friction surface meets an invariable condition;

[0030] The second friction surface is located on a side of the third friction surface away from the first component in the arrangement direction of the first component and the second component; wherein during the change from the first relative angle to the second relative angle, the first friction surface can be in frictional contact with the second friction surface, and the force applying component applies a first pressure; during the change from the second relative angle to the third relative angle, the first friction surface can be in frictional contact with the third friction surface, and the force applying component applies a second pressure, the second pressure being greater than the first pressure.

[0031] Optionally, in the electronic device, at least one of the following is met:

[0032] The friction coefficients of the second friction surface and the third friction surface are the same or different;

[0033] The force applying component is an elastic component that applies an elastic force in the direction of the rotation axis of the first component and the second component.

[0034] Optionally, in the electronic device, the third friction surface includes a fifth sub-friction surface arranged in the third region and a sixth sub-friction surface arranged in the fourth region;

[0035] The third sub-friction surface and the fifth sub-friction surface have a first matching area that matches the gap of the first friction surface, and the fourth sub-friction surface and the sixth sub-friction surface have a second matching area that matches the gap of the first friction surface;

[0036] During the switching from the first relative angle to the second relative angle, the first sub-friction surface at least partially corresponds to the first matching area and / or the second sub-friction surface at least partially corresponds to the second matching area;

[0037] During the switching from the second relative angle to the third relative angle, the first sub-friction surface is in frictional contact with the fifth sub-friction surface and / or the second sub-friction surface is in frictional contact with the sixth sub-friction surface.

[0038] Optionally, in the electronic device, at least one of the following is met:

[0039] The first sub-friction surface and the second sub-friction surface are located on two sides of the rotation center of the first component;

[0040] The third sub-friction surface and the fourth sub-friction surface are located on two sides of the rotation center of the second component;

[0041] The fifth sub-friction surface and the sixth sub-friction surface are located on two sides of the rotation center of the second component.

[0042] Optionally, in the electronic device, the first surface has a first sub-surface protruding towards the second component, the first sub-surface has the first friction surface; the second surface has a second sub-surface and a third sub-surface, the second sub-surface is located on a side of the third sub-surface away from the first component, and the third sub-surface has the second friction surface;

[0043] In the first device form, an angle between the first body and the second body is an initial relative angle, and rotating the first body relative to the second body in a first direction can switch the angle between the first body and the second body from the initial relative angle to the first relative angle; in the initial relative angle, the first sub-surface and the second sub-surface are matched to provide a limiting force for limiting relative rotation of the first component and the second component;

[0044] And / or, the second surface has a first transition surface connecting between the second sub-surface and the third sub-surface; during movement of the first sub-surface from the second sub-surface to the third sub-surface, the first sub-surface moves along the second sub-surface to the first transition surface and moves from the first transition surface to the third sub-surface.

[0045] The application further provides a rotating shaft structure, comprising:

[0046] A first component, the first component has a first surface, and the first surface has a first friction surface;

[0047] A second component, which is capable of rotating relative to the first component, has a second friction surface facing a second surface of the first surface;

[0048] A force applying component, which is capable of applying a force to make the first component and the second component close to each other;

[0049] Wherein,

[0050] During the rotation of the first component and the second component in a first direction, the friction contact area of the first friction surface and the second friction surface can change, so that the torsion provided by the rotating shaft structure can show a decreasing or increasing trend. BRIEF DESCRIPTION OF DRAWINGS

[0051] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0052] Figure 1 The structural schematic diagram of an electronic device in a first device form is provided for the embodiments of the present application;

[0053] Figure 2 The structural schematic diagram of an electronic device in a second device form is provided for the embodiments of the present application;

[0054] Figure 3 The structural schematic diagram of an electronic device in a third device form is provided for the embodiments of the present application;

[0055] Figure 4 The structural schematic diagram of a rotating shaft structure is provided for the embodiments of the present application;

[0056] Figure 5 The front view structural schematic diagram of a first component and a second component is provided for the embodiments of the present application;

[0057] Figure 6 The three-dimensional structural schematic diagram of a first component and a second component is provided for the embodiments of the present application;

[0058] Figure 7 The structural schematic diagram of a first surface of a first component is provided for the embodiments of the present application;

[0059] Figure 8 The front view structural schematic diagram of a first component is provided for the embodiments of the present application;

[0060] Figure 9 The three-dimensional structural schematic diagram of a first component is provided for the embodiments of the present application;

[0061] Figure 10 Structure diagram of the second surface of the second component provided for the embodiment of the present application;

[0062] Figure 11 Front view structure diagram of the second component provided for the embodiment of the present application;

[0063] Figure 12 Perspective structure diagram of the second component provided for the embodiment of the present application;

[0064] Figure 13 Height and relative angle relationship diagram of the second component provided for the embodiment of the present application;

[0065] Figure 14 Structure diagram of the first component and the second component at different angles provided for the embodiment of the present application;

[0066] Figure 15 Cooperative structure diagram of the second surface of the first component and the second component at different angles provided for the embodiment of the present application;

[0067] Figure 16 Structure diagram of the first body and the second body at 90° provided for the embodiment of the present application;

[0068] Figure 17 Curve diagram of the single-hand opening threshold and the upper limit of the torsion of the electronic device provided for the embodiment of the present application.

[0069] Wherein,

[0070] The first body 100, the functional surface 101;

[0071] The second body 200;

[0072] The rotating shaft structure 300,

[0073] The first component 310, the first surface 311, the first sub-surface 3110, the first region 3111, the second region 3112, the first connecting portion 312, the first friction surface 313, the first sub-friction surface 3131, the second sub-friction surface 3132,

[0074] Second component 320, second sub-face 3210, first sub-face 32101, second sub-face 32102, second face 321, third region 3211, fourth region 3212, third sub-face 3213, fourth sub-face 3214, first transition face 3215, first transition sub-face 32151, second transition sub-face 32152, second transition face 3216, third transition sub-face 32161, fourth transition sub-face 32162, second connecting portion 322, second friction face 323, third sub-friction face 3231, fourth sub-friction face 3232, third friction face 324, fifth sub-friction face 3241, sixth sub-friction face 3242, first mating region 325, second mating region 326,

[0075] Force applying component 330, second connecting component 340, first connecting component 350. DETAILED DESCRIPTION

[0076] The technical solutions in the embodiments of the present disclosure will be described clearly and completely below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present disclosure.

[0077] The present disclosure provides these embodiments in order to make the present disclosure thorough and complete, and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions and values set forth in these embodiments should be interpreted as merely exemplary, and not as a limitation.

[0078] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "a plurality of" is greater than or equal to two; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is only for the purpose of facilitating the description of the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0079] In addition, "first", "second", and similar words used in the present disclosure do not indicate any order, number, or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error. "Include" or "contain" and similar words mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.

[0080] It should also be noted that in the description of the present disclosure, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances. When it is described that a specific device is located between a first device and a second device, there can be or can not be an intermediate device between the specific device and the first device or the second device.

[0081] All the terms used in the present disclosure have the same meaning as understood by those skilled in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that the terms defined in general dictionaries should be interpreted to have meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or excessively formalized sense, unless otherwise defined explicitly herein.

[0082] The technologies, methods and devices known to those skilled in the relevant art can not be discussed in detail, but in appropriate cases, the technologies, methods and devices should be considered as part of the specification. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0083] The inventors have found that during the switching process of different device morphologies, there is a situation where the torque does not change. For example, in a device morphology, it is necessary to adjust the first body and the second body to a target relative angle, but during the rotation of the first body relative to the second body in a first direction, at different stages of not reaching the target relative angle, reaching the target relative angle and exceeding the target relative angle, the torque provided by the rotating shaft structure is inconvenient for the user to control the relative angle, affecting the accuracy of the device morphology switching.

[0084] As shown in Figure 1 , Figure 2 and Figure 3 , the present application provides an electronic device which can include a first body 100, a second body 200 and a rotating shaft structure 300.

[0085] The rotating shaft structure 300 can be rotatably connected to the first body 100 and the second body 200 to switch between the first device form and the second device form. The electronic device can have different functions or meet different needs in different device forms. Taking the first body 100 having the functional surface 101 as an example, the functional surface 101 can be in different states in different device forms. For example, in the first device form, the functional surface 101 is at least partially blocked by the second body 200, so that the functional surface 101 is in a non-use state. In the second device form, the functional surface 101 is at least partially unblocked by the second body 200, so that the functional surface 101 is in a use state.

[0086] wherein,

[0087] In the process of switching from the first device form to the second device form, the first body 100 can rotate relative to the second body 200 in the first direction to switch the angle between the first body 100 and the second body 200 from the first relative angle to the second relative angle, and in the second device form, the angle between the first body 100 and the second body 200 can be the second relative angle; wherein the first relative angle can be close to the angle between the first body 100 and the second body 200 in the second device form. For example, in the first device form, the angle between the first body 100 and the second body 200 is 0°, and in the second device form, the angle between the first body 100 and the second body 200 is the second relative angle (which can be 90°, 100°, 110°, or 120°, etc.), and the first relative angle can be 60°, 70°, or 80°, etc. smaller than the second relative angle. In the process of switching from the first relative angle to the second relative angle, the torsion provided by the rotating shaft structure 300 can show a decreasing trend.

[0088] wherein, the decreasing trend can include a stepwise decrease and a continuous decrease.

[0089] In the embodiment of the stepwise decrease, the process of switching from the first relative angle to the second relative angle can be divided into a plurality of sub-processes, and the torsion in each sub-process is constant. The torsion provided by the rotating shaft structure 300 is different in different sub-processes, and the closer to the second relative angle, the smaller the torsion in the sub-process. The torsion values in different sub-processes can be 6 kgf•cm, 5.8 kgf•cm, 5.6 kgf•cm, 5 kgf•cm, 4.5 kgf•cm, etc. in turn. They can also be other values that decrease in turn.

[0090] In the embodiment of continuous reduction, the torsion provided by the rotating shaft structure 300 is continuously reduced during the process of switching from the first relative angle to the second relative angle, for example, the torsion value is continuously reduced from 6 kgf•cm to 4.5 kgf•cm during the process of switching from the first relative angle to the second relative angle, and the torsion value can also be other values, for example, continuously reduced from 5.8 kgf•cm to 4 kgf•cm, etc.

[0091] For example, the first relative angle is 60° and the second relative angle is 110°, that is, during the process of rotating the first body 100 relative to the second body 200 along the first direction, the angle between the first body 100 and the second body 200 is switched from 60° to 110° (i.e., the process of switching from the first relative angle to the second relative angle). During this process, the torsion provided by the rotating shaft structure 300 shows a decreasing trend, so that the external force required to be applied by the user (the force for driving the first body 100 to rotate relative to the second body 200 along the first direction) decreases.

[0092] After reaching the second relative angle, the first body 100 can rotate relative to the second body 200 along the first direction, and the torsion provided by the rotating shaft structure 300 can show an increasing trend. That is, when the first body 100 rotates relative to the second body 200 along the first direction and passes through the second relative angle, and continues to rotate along the first direction, the torsion provided by the rotating shaft structure 300 shows an increasing trend. For example, the second relative angle is 110°, that is, the first body 100 continues to rotate relative to the second body 200 along the first direction, so that the angle between the first body 100 and the second body 200 is switched from 110° to a larger angle (such as 130° or 140°, etc.). During this process, the torsion provided by the rotating shaft structure 300 shows an increasing trend, so that the external force required to be applied by the user (the force for driving the first body 100 to rotate relative to the second body 200 along the first direction) increases.

[0093] The increasing trend can include stepwise increase and continuous increase.

[0094] In the embodiment of stepwise increase, the process of continuing to rotate the first body 100 relative to the second body 200 along the first direction after reaching the second relative angle can be divided into multiple sub-processes, the torsion in each sub-process is unchanged, the torsion provided by the rotating shaft structure 300 in different sub-processes is different, and the farther away from the second relative angle, the greater the torsion in the sub-process. The torsion values in different sub-processes can be 4 kgf•cm, 4.8 kgf•cm, 5.0 kgf•cm, 6 kgf•cm, 6.5 kgf•cm, etc. They can also be other values that increase sequentially.

[0095] In the embodiment of continuous increase, the torsion provided by the torsion shaft structure 300 can continuously decrease in the process of continuously rotating the first body 100 relative to the second body 200 along the first direction after the second relative angle is reached, for example, the torsion value continuously increases from 4 kgf•cm to 6.5 kgf•cm in the process of continuously rotating the first body 100 relative to the second body 200 along the first direction after the second relative angle is reached, and the torsion value can also be other values, for example, continuously increases from 4.8 kgf•cm to 6 kgf•cm, etc. Wherein, as shown in the first device form, the electronic device can be in the first device form, as shown in the second device form, the electronic device can be in the second device form, as shown in the third device form, the electronic device can be in the device form formed by continuously rotating the first body 100 relative to the second body 200 along the first direction after the second relative angle (the second device form) is reached. Figure 1 Figure 2 Figure 3

[0096] Wherein, the first device form can be a closed form, that is, a non-use state of the electronic device, wherein the relative angle between the first body 100 and the second body 200 is 0° or approximately 0°, and the first body 100 and the second body 200 are stacked. The second device form can be the first use form of the electronic device, so that the first body 100 and the second body 200 are at the second relative angle, such as 110° or 120°, etc. The third device form can be the second use form of the electronic device, so that the first body 100 and the second body 200 are in an unfolded state, and the first body 100 and the second body 200 are at a fourth relative angle, such as 180° or approximately 180°.

[0097] The first relative angle can be an angle greater than or equal to 0° and less than the second relative angle (such as 60°, 70°, or 90°, etc.). Taking the first relative angle as 70° and the second relative angle as 110° as an example, the process from the first relative angle to the second relative angle can be the process of rotating the first body 100 relative to the second body 200 along the first direction, so that the relative angle between the first body 100 and the second body 200 increases from 70° to 110°.

[0098] And after reaching the second relative angle, the relative angle between the first body 100 and the second body 200 continues to rotate the first body 100 relative to the second body 200. Taking the second relative angle as 110° as an example, after reaching the second relative angle, the process of rotating the first body 100 relative to the second body 200 along the first direction can be the process of rotating the first body 100 relative to the second body 200 along the first direction, so that the relative angle between the first body 100 and the second body 200 increases from 110°.

[0099] ​​​The electronic device can be a notebook computer or a foldable-screen mobile phone, etc. Taking the notebook computer as an example, the first body 100 can be a body with a display screen and the like, and the second body 200 can be a body with a keyboard, a touch screen and the like.

[0100] The first device form can be a closed form, and the relative angle of the first body 100 relative to the second body 200 can be 0°, so as to facilitate the storage and movement of the electronic device. The second device form can be a first use state, and the first body 100 and the second body 200 can be at a second relative angle (such as 110° or 120°, etc.), so that the user can operate the functional parts of the first body 100 and the second body 200. The third device form can be a second use state, so that the first body 100 and the second body 200 are at a fourth relative angle (such as 180° or approximately 180°).

[0101] During the switching of the electronic device from the first device form to the second device form, the user can rotate the first body 100 relative to the second body 200 in the first direction by applying a force, and the torsional force provided by the hinge structure 300 decreases during the switching to the second device form, so as to facilitate the user to switch to the second device form. And during the process of reaching the second device form and continuing to rotate the first body 100 relative to the second body 200 in the first direction, the torsional force provided by the hinge structure 300 increases, so that the user can obtain information feedback by applying a force to switch to the second device form, that is, the user can obtain whether to switch to the second device form by applying the size of the force to drive the first body 100 to rotate relative to the second body 200 in the first direction, thereby facilitating the user to control the switching of the device form, and avoiding that the angle between the first body 100 and the second body 200 is too large to affect the accuracy of the device form switching.

[0102] And the inventor found that when the second body 200 is placed on a support platform (such as a desktop or other platform for placing an electronic device, etc.) and the user applies a force to the first body 100, as the angle between the first body 100 and the second body 200 increases, the center of gravity of the first body 100 moves backward (towards the hinge structure 300), and when the opening angle gradually approaches and exceeds the support position of the side of the second body 200 close to the hinge structure 300 (such as the rear foot pad or rear edge of the second body 200 close to the hinge structure 300), the first body 100 acts as a reverse torque, and the torsional force of the hinge structure 300 is added, so that the front end of the second body 200 (the end away from the hinge structure 300) starts to lift, and the first body 100 cannot be directly opened to the use angle (such as the second relative angle) without limiting the second body 200, so that the single-handed operation from the first device form to the second device form cannot be realized.

[0103] Since the torsion provided by the hinge structure 300 during the process of switching from the first relative angle to the second relative angle is reduced, the opening angle can gradually approach and exceed the support position of the second body 200 on the side close to the hinge structure 300. Although it is not possible to avoid the first body 100 acting as a reverse torque, the torsion of the hinge structure 300 can be reduced to avoid the front end of the second body 200 being lifted, thereby facilitating the user to complete the operation of switching the electronic device from the first device form to the second device form with one hand.

[0104] As shown in Figure 4 , Figure 5 and Figure 6 , the hinge structure 300 can include a first component 310, a second component 320, and a force applying component 330.

[0105] The first component 310 can be connected to the first body 100 through a first connecting component 350, and the second component 320 can be connected to the second body 200 through a second connecting component 340. Alternatively, the first component 310 can be connected to the second body 200 through the first connecting component 350, and the second component 320 can be connected to the first body 100 through the second connecting component 340. During the relative rotation of the first body 100 and the second body 200, the first component 310 rotates relative to the second component 320.

[0106] In some embodiments, the relative rotation of the first body 100 and the second body 200 can also cause the relative movement of other components, and the torsion provided by the hinge structure can include the friction between the first component 310 and the second component 320, and also include the friction caused by the relative movement of other components. For example, the rotation of the second component 320 relative to the first connecting component 350. In the embodiment in which the second component 320 is sleeved outside the first connecting component 350 through a connecting hole, the inner wall of the connecting hole can be in frictional contact with the outer wall of the first connecting component 350 during the relative rotation of the first body 100 and the second body 200, so as to generate additional friction between the second component 320 and the first connecting component 350. The friction between the first component 310 and the second component 320 can be at least part of the torsion provided by the hinge structure 300.

[0107] In some embodiments, the first component 310 can be connected to the first connecting component 350 through a first connecting part 312. For example, the first connecting component 350 has a connecting section with a non-circular cross-section, and the first connecting part 312 can be a non-circular hole matched with the connecting section, so that the first component 310 can rotate synchronously in the state of being connected to the first connecting component 350 through the first connecting part 312.

[0108] The second component 320 can be connected with the second connecting component 340 through the second connecting part 322. For example, the second connecting component 340 has an opening structure with a certain distance from the rotation center of the second component 320, the edge of the second component 320 is provided with the second connecting part 322, and the second connecting part 322 can have a protruding structure capable of being at least partially embedded in the opening structure, so that the second component 320 can be synchronously rotated in the state of being connected with the second connecting component 340 through the second connecting part 322.

[0109] The first component 310 can have a first surface 311, and the first surface 311 can have a first friction surface 313. The second component 320 can be rotated relative to the first component 310 to switch the first component 310 and the second component 320 between different relative positions. The second component 320 has a second surface 321 facing the first surface 311, and the second surface 321 can have a second friction surface 323. The force applying component 330 can apply a force to make the first component 310 and the second component 320 close to each other. That is, the force applying component 330 applies a force to make the first component 310 and the second component 320 close to each other, so that there is a state of frictional contact between the first friction surface 313 and the second friction surface 323 during the relative rotation of the first component 310 and the second component 320. The first surface 311 is opposite to the second surface 321, so the force applied by the force applying component 330 is the force of the first surface 311 and the second surface 321 close to each other. Along the arrangement direction of the first component 310 and the second component 320, in the state that the projections of the first friction surface 313 and the second friction surface 323 at least partially overlap, the force applied by the force applying component 330 can be the pressure between the first friction surface 313 and the second friction surface 323. With the rotation of the second component 320 relative to the first component 310, the area of the projection of the first friction surface 313 and the second friction surface 323 along the arrangement direction of the first component 310 and the second component 320 can be adjusted, that is, the rotation of the second component 320 relative to the first component 310 can adjust the area of the frictional contact surface between the first component 310 and the second component 320.

[0110] The frictional force generated between the first component 310 and the second component 320 can be reduced by reducing the frictional contact surface, so that the torque provided by the shaft structure is reduced.

[0111] In some embodiments, the first friction surface 313 and the second friction surface 323 can have a first contact area at the first relative angle; the first friction surface 313 and the second friction surface 323 can have a second contact area at the second relative angle, the first contact area being greater than the second contact area. That is, the friction contact area of the first friction surface 313 and the second friction surface 323 at the first relative angle is less than the friction contact area of the first friction surface 313 and the second friction surface 323 at the second relative angle. By reducing the contact area, the torque provided by the shaft structure during the switching from the first relative angle to the second relative angle tends to decrease.

[0112] In some embodiments, the friction contact area can be reduced in stages during the switching from the first relative angle to the second relative angle.

[0113] For example, when the first relative angle is 60° and the second relative angle is 110°, the friction contact area (the first contact area) of the first friction surface 313 and the second friction surface 323 at the first relative angle (60°) can be a unit area (e.g., 10 cm 2 or 12 cm 2 , and the friction contact area (the second contact area) of the first friction surface 313 and the second friction surface 323 at the second relative angle (110°) can be 1 / 2 times the unit area (e.g., 5 cm 2 or 6 cm 2 . The friction contact area of the first friction surface 313 and the second friction surface 323 can be the unit area when the angle between the first body 100 and the second body 200 is in the interval of 60° to 70°, 7 / 8 times the unit area when the angle between the first body 100 and the second body 200 is in the interval of 70° to 80°, 3 / 4 times the unit area when the angle between the first body 100 and the second body 200 is in the interval of 80° to 90°, 5 / 8 times the unit area when the angle between the first body 100 and the second body 200 is in the interval of 90° to 100°, and 1 / 2 times the unit area when the angle between the first body 100 and the second body 200 is in the interval of 100° to 110°. That is, the first relative angle to the second relative angle is divided into multiple angle intervals, the friction contact area at each interval is constant, the friction contact areas at different intervals are different, and the greater the angle, the smaller the friction contact area.

[0114] The friction contact area can also be continuously reduced during the process of switching from the first relative angle to the second relative angle. That is, the friction contact area between the first friction surface 313 and the second friction surface 323 is gradually reduced.

[0115] For example, when the first relative angle is 60° and the second relative angle is 110°, the friction contact area (first contact area) between the first friction surface 313 and the second friction surface 323 at the first relative angle (60°) can be a unit area (e.g., 10 cm 2 or 12 cm 2 , etc.), and the friction contact area (second contact area) between the first friction surface 313 and the second friction surface 323 at the second relative angle (110°) can be 1 / 2 times the unit area (e.g., 5 cm 2 or 6 cm 2 , etc.). During the process of changing the angle between the first body 100 and the second body 200 from 60° to 110°, the friction contact area between the first friction surface 313 and the second friction surface 323 gradually decreases from the unit area to 1 / 2 times the unit area as the angle increases.

[0116] As shown in Figure 7 , Figure 8 and Figure 9 , in some embodiments, the first surface 311 can include a first region 3111 and a second region 3112 which are relatively independent. The first region 3111 and the second region 3112 can be arranged concentrically, and the first friction surface 313 can include a first sub-friction surface 3131 arranged on the first region 3111 and a second sub-friction surface 3132 arranged on the second region 3112. The first region 3111 and the second region 3112 can be annular regions, or one of the first region 3111 and the second region 3112 can be an annular region and the other can be an arc surface arranged concentrically with the annular region, or the first region 3111 and the second region 3112 can both be square surface regions, circular surface regions, or other regions.

[0117] As shown in Figure 10 , Figure 11 and Figure 12As shown, the second surface 321 can have a third region 3211 and a fourth region 3212, the third region 3211 and the fourth region 3212 can be arranged at different distances from the rotation center of the second component 320, and the second friction surface 323 can include a third sub-friction surface 3231 arranged on the third region 3211 and a fourth sub-friction surface 3232 arranged on the fourth region 3212. The third region 3211 and the fourth region 3212 can be two concentric annular regions, or one of the third region 3211 and the fourth region 3212 can be an annular region and the other can be an arc surface arranged concentrically with the annular region, or the third region 3211 and the fourth region 3212 can both be square surface regions, circular surface regions, or other regions.

[0118] In the arrangement direction of the first component 310 and the second component 320, the projection of the first region 3111 and the projection of the third region 3211 at least partially overlap, and the projection of the second region 3112 and the projection of the fourth region 3212 at least partially overlap. The arrangement direction of the first component 310 and the second component 320 can be the axial direction of the rotation shaft structure 300.

[0119] In some embodiments, at the first relative angle, the first sub-friction surface 3131 and the third sub-friction surface 3231 can have a first sub-contact area, and the second sub-friction surface 3132 and the fourth sub-friction surface 3232 can have a second sub-contact area; at the second relative angle, the first sub-friction surface 3131 and the third sub-friction surface 3231 can have a third sub-contact area, and the second sub-friction surface 3132 and the fourth sub-friction surface 3232 can have a fourth sub-contact area. At least one of the first sub-contact area being greater than the third sub-contact area and the second sub-contact area being greater than the fourth sub-contact area can be satisfied. Since the first contact area is greater than the second contact area, the total area of the first sub-contact area and the second sub-contact area is greater than the total area of the third sub-contact area and the fourth sub-contact area. Therefore, at least one of the first sub-contact area being greater than the third sub-contact area (the friction contact area of the first sub-friction surface 3131 and the third sub-friction surface 3231 is reduced) and the second sub-contact area being greater than the fourth sub-contact area (the friction contact area of the second sub-friction surface 3132 and the fourth sub-friction surface 3232 is reduced) can be used to achieve a reduction in the friction contact area when switching from the first relative angle to the second relative angle.

[0120] That is, the first sub-contact area and the third sub-contact area can be made to satisfy the equal condition (equal or approximately equal), and the second sub-contact area can be made to be greater than the fourth sub-contact area, so that the friction contact area is reduced when the first relative angle is switched to the second relative angle. The first sub-contact area can also be made to be greater than the third sub-contact area, and the second sub-contact area and the fourth sub-contact area can be made to satisfy the equal condition (equal or approximately equal), so that the friction contact area is reduced when the first relative angle is switched to the second relative angle. The first sub-contact area can also be made to be greater than the third sub-contact area, and the second sub-contact area can be made to be greater than the fourth sub-contact area, so that the friction contact area is reduced when the first relative angle is switched to the second relative angle.

[0121] Of course, the first sub-contact area can also be made to be greater than the third sub-contact area, and the second sub-contact area can be made to be less than the fourth sub-contact area; or, the first sub-contact area can be made to be less than the third sub-contact area, and the second sub-contact area can be made to be greater than the fourth sub-contact area. The total area of the first sub-contact area and the second sub-contact area needs to be greater than the total area of the third sub-contact area and the fourth sub-contact area, so as to reduce the friction contact area when the first relative angle is switched to the second relative angle.

[0122] By dividing the friction contact surface into at least two sub-contact surface groups distributed in the radial direction of the rotating shaft structure, the contact area can be more flexibly adjusted at a smaller rotating angle, so as to improve the flexibility of the torque adjustment.

[0123] In some embodiments, the friction contact areas of different sub-friction surfaces (the friction contact areas of the first sub-friction surface 3131 and the third sub-friction surface 3231, and the friction contact areas of the second sub-friction surface 3132 and the fourth sub-friction surface 3232) can be reduced in stages or continuously during the switching of the first relative angle to the second relative angle.

[0124] Taking the example of the friction contact areas of the first sub-friction surface 3131 and the third sub-friction surface 3231 being reduced in stages, and the friction contact areas of the second sub-friction surface 3132 and the fourth sub-friction surface 3232 being reduced continuously, the first relative angle to the second relative angle is divided into multiple angle intervals. The friction contact areas of the first sub-friction surface 3131 and the third sub-friction surface 3231 remain unchanged in each interval, and the friction contact areas of the first sub-friction surface 3131 and the third sub-friction surface 3231 are different in different intervals, and the greater the angle, the smaller the friction contact area. Moreover, as the angle increases, the friction contact areas of the second sub-friction surface 3132 and the fourth sub-friction surface 3232 gradually decrease.

[0125] The friction contact area between the first sub-friction surface 3131 and the third sub-friction surface 3231 can be continuously reduced, and the friction contact area between the second sub-friction surface 3132 and the fourth sub-friction surface 3232 can be periodically reduced. Alternatively, the friction contact area between the first sub-friction surface 3131 and the third sub-friction surface 3231 and the friction contact area between the second sub-friction surface 3132 and the fourth sub-friction surface 3232 can be continuously reduced or periodically reduced.

[0126] The second surface 321 can have a third friction surface 324, which is different from the second friction surface 323. That is, the friction force generated between the second friction surface 323 and the first friction surface 313 is different from the friction force generated between the third friction surface 324 and the first friction surface 313 under the same unit friction contact area. The difference between the second friction surface 323 and the third friction surface 324 can include a non-coplanar arrangement, so that the second friction surface 323 and the third friction surface 324 are located at different axial positions of the rotating shaft structure 300. The difference between the second friction surface 323 and the third friction surface 324 can also be different friction coefficients, i.e., different roughness or material of the second friction surface 323 and the third friction surface 324.

[0127] The second friction surface 323 and the third friction surface 324 can be arranged non-coplanarly, and along the axial direction of the rotating shaft structure 300, the third friction surface 324 can be located on the side of the second friction surface 323 close to the first component 310. When the first friction surface 313 and the second component 320 are in contact with different friction surfaces, the force applied by the force applying component 330 to make the first component 310 and the second component 320 close to each other is different. That is, the pressure between the first friction surface 313 and the second friction surface 323 in friction contact can be different from the pressure between the first friction surface 313 and the third friction surface 324 in friction contact. By changing the pressure, even if the friction coefficients of the second friction surface 323 and the third friction surface 324 are the same and the same friction contact area exists, different friction forces can be formed to further improve the flexibility of the torque adjustment.

[0128] The friction coefficients of the second friction surface 323 and the third friction surface 324 can also be different. Even if the force applied by the force applying component 330 to make the first component 310 and the second component 320 close to each other is the same and the same friction contact area exists when the first friction surface 313 and the second component 320 are in contact with different friction surfaces, different friction forces can be formed to improve the flexibility of the torque adjustment of the rotating shaft structure 300.

[0129] The third relative angle can be an angle greater than the second relative angle, such as 130° or 140°.

[0130] During switching of the second relative angle to the third relative angle, the first body 100 can continue to rotate relative to the second body 200 in the first direction. The friction contact area between the first friction surface 313 and the third friction surface 324 increases, so that the torsion provided by the shaft structure 300 increases. The process of switching the second relative angle to the third relative angle can be a switching process of 110°-140°, so as to increase the torsion provided by the shaft structure 300 during the change between the relative angles.

[0131] The increase in the friction contact area between the first friction surface 313 and the third friction surface 324 can also be a phased increase or a continuous increase.

[0132] In some embodiments, the electronic device has a third device form, and the first body 100 and the second body 200 can form a fourth relative angle, and the first body 100 can switch from the third relative angle to the fourth relative angle during rotation relative to the second body 200 in the first direction. Figure 3 The electronic device shown in FIG. 6 can be in the third device form, and the fourth relative angle can be an angle of 180° or approximately 180°. The third device form can be a second use form of the electronic device, so that the first body 100 and the second body 200 are in an unfolded state, and the first body 100 and the second body 200 form a fourth relative angle, such as 180° or approximately 180°. In the embodiment in which the electronic device is a notebook computer, the third device form can be a form in which the first body 100 having a display screen and the second body 200 having a keyboard or a touch screen are unfolded to 180° or approximately 180°.

[0133] The third relative angle can be a relative angle of the first body 100 and the second body 200 in an intermediate form between the second device form and the third device form. For example, the second relative angle of the first body 100 and the second body 200 in the second device form is 110°, and the fourth relative angle of the first body 100 and the second body 200 in the third device form is 180°, and the third relative angle can be an angle greater than 110° and less than 180°, such as 140° or 150°.

[0134] In the process of switching from the third relative angle to the fourth relative angle, the friction contact area between the first friction surface 313 and the third friction surface 324 satisfies the invariable condition; that is, the friction contact area between the first friction surface 313 and the third friction surface 324 is invariable or approximately invariable. Among them, the process of switching from the third relative angle to the fourth relative angle can be a switching process of 140°-180°, so as to make the shaft structure 300 be able to provide stable torque in the process of changing between the relative angles.

[0135] Along the arrangement direction of the first component 310 and the second component 320, the second friction surface 323 can be located on the side of the third friction surface 324 away from the first component 310. That is, the positions of the second friction surface 323 and the third friction surface 324 in the axial direction of the shaft structure 300 are different.

[0136] Among them, in the process of changing from the first relative angle to the second relative angle, the first friction surface 313 can be in friction contact with the second friction surface 323, and the force applying component 330 applies the first pressure; in the process of changing from the second relative angle to the third relative angle, the first friction surface 313 can be in friction contact with the third friction surface 324, and the force applying component 330 applies the second pressure, and the second pressure is greater than the first pressure. Among them, the friction coefficients of the second friction surface 323 and the third friction surface 324 can be made the same, and different pressures are applied by the force applying component 330 to adjust the friction force. For example, the first pressure is 50N, and the second pressure can be 80N; or the first pressure is 70N, and the second pressure can be 110N, etc.

[0137] The first component 310 can be a cam structure, and the first surface 311 has a convex structure, which can be provided with the first friction surface 313. The second component 320 can be a concave cam structure, and the second surface 321 has a concave structure and a non-concave structure. The concave structure cooperates with the convex structure of the first component 310 to achieve the limiting effect. For example, when the relative angle between the first body 100 and the second body 200 is 0°, the convex structure of the first component 310 and the concave structure of the second component 320 can be matched to achieve the limiting effect. The non-concave structure can have a friction surface (such as the second friction surface 323 or the third friction surface 324).

[0138] The force applying component 330 can be a spring structure elastically deformed along the axial direction of the shaft structure 300, so as to apply the force of the relative close of the first component 310 and the second component 320. The force applying component 330 can also be other structures, such as an elastic connecting piece connecting the first component 310 and the second component 320, etc.

[0139] The friction coefficients of the second friction surface 323 and the third friction surface 324 can be made the same or different. The friction coefficient can include roughness, material, etc.

[0140] The force applying member 330 can be an elastic member that applies elastic force in the direction of the rotation axis of the first member 310 and the second member 320. In the state that the second friction surface 323 and the third friction surface 324 are located at different positions in the direction of the rotation axis (the axis direction of the rotation shaft structure 300), the elastic deformation amount of the force applying member 330 in the case that the first friction surface 313 is in frictional contact with the second friction surface 323 is different from the case that the first friction surface 313 can be in frictional contact with the third friction surface 324, so that the force applying member 330 can apply different pressure.

[0141] In some embodiments, in the embodiment that the second surface 321 has a third region 3211 and a fourth region 3212, the third friction surface 324 can include a fifth sub-friction surface 3241 arranged at the third region 3211 and a sixth sub-friction surface 3242 arranged at the fourth region 3212. The fifth sub-friction surface 3241 and the sixth sub-friction surface 3242 can be arc surface structures. The first sub-friction surface 3131 arranged at the first region 3111 in the first friction surface 313 can be in frictional contact with the fifth sub-friction surface 3241 arranged at the third region 3211, and the second sub-friction surface 3132 arranged at the second region 3112 in the first friction surface 313 can be in frictional contact with the sixth sub-friction surface 3242 arranged at the fourth region 3212.

[0142] The first sub-friction surface 3231 and the fifth sub-friction surface 3241 have a first matching area 325 that matches the gap of the first friction surface 313, and the fourth sub-friction surface 3232 and the sixth sub-friction surface 3242 have a second matching area 326 that matches the gap of the first friction surface 313. That is, along the axis direction of the rotation shaft structure 300, the part of the projection of the first friction surface 313 that coincides with the first matching area 325 or the second matching area 326 is gap-matched and does not contact and generate frictional force.

[0143] In the process of switching from the first relative angle to the second relative angle, the first sub-friction surface 3131 can at least partially correspond to the first matching area 325, and the corresponding part does not generate friction force, or the second sub-friction surface 3132 can at least partially correspond to the second matching area 326, and the corresponding part does not generate friction force. That is, in the process of switching from the first relative angle to the second relative angle, there is a case that the first sub-friction surface 3131 is at least partially not in frictional contact with the second friction surface 323, or a case that the second sub-friction surface 3132 is at least partially not in frictional contact with the second friction surface 323. Through the change of the angle, the area of the part of the first sub-friction surface 3131 corresponding to the first matching area 325 is changed, the frictional contact area of the first sub-friction surface 3131 and the third sub-friction surface 3231 of the second friction surface 323 is adjusted, and the area of the part of the second sub-friction surface 3132 corresponding to the second matching area 326 is changed, and the frictional contact area of the second sub-friction surface 3132 and the fourth sub-friction surface 3232 of the second friction surface 323 is adjusted.

[0144] In the process of switching from the second relative angle to the third relative angle, at least one of the first sub-friction surface 3131 and the fifth sub-friction surface 3241 in frictional contact, and the second sub-friction surface 3132 and the sixth sub-friction surface 3242 in frictional contact can be satisfied. That is, in the process of switching from the second relative angle to the third relative angle, the first sub-friction surface 3131 can be at least partially in frictional contact with the fifth sub-friction surface 3241, and in this process, the first sub-friction surface 3131 can also at least partially correspond to the first matching area 325. The second sub-friction surface 3132 can be at least partially in frictional contact with the sixth sub-friction surface 3242, and in this process, the second sub-friction surface 3132 can also at least partially correspond to the second matching area 326.

[0145] In order to improve the rotation stability of the first component 310 and the second component 320 to provide stable friction force, the first sub-friction surface 3131 and the second sub-friction surface 3132 can be located on both sides of the rotation center of the first component 310.

[0146] The third sub-friction surface 3231 and the fourth sub-friction surface 3232 can also be located on both sides of the rotation center of the second component 320.

[0147] The fifth sub-friction surface 3241 and the sixth sub-friction surface 3242 can also be located on both sides of the rotation center of the second component 320.

[0148] In some embodiments, the first surface 311 may have a first sub-surface 3110 protruding toward the second component 320, and the first sub-surface 3110 may have a first friction surface 313; the second surface 321 may have a second sub-surface 3210 and a third sub-surface 3213, the second sub-surface 3210 may be located on the side of the third sub-surface 3213 away from the first component 310, that is, the second sub-surface 3210 forms the bottom surface of the recessed portion of the second surface 321, and the third sub-surface 3213 has a second friction surface 323.

[0149] In the first device configuration, the angle between the first body 100 and the second body 200 can be an initial relative angle. Rotation of the first body 100 relative to the second body 200 along a first direction allows the angle between them to switch from the initial relative angle to the first relative angle. At the initial relative angle, the first sub-surface 3110 and the second sub-surface 3210 can cooperate to provide a limiting force restricting the relative rotation of the first component 310 and the second component 320. That is, at the initial relative angle, the electronic device can be in the first device configuration, with the initial relative angle being 0°. The cooperation of the first sub-surface 3110 and the second sub-surface 3210 allows the protruding first sub-surface 3110 to at least partially embed into the recessed portion formed by the second sub-surface 3210 under the force applied by the first component 310 and the second component 320 approaching each other. This protrusion-contour cooperation provides a limiting effect.

[0150] The second surface 321 can have a fourth sub-surface 3214, and the fourth sub-surface 3214 has a third friction surface 324. The fourth sub-surface 3214 and the third sub-surface 3213 are not coplanar.

[0151] To facilitate the rotation of the first component 310 and the second component 320, the second surface 321 may have a first transition surface 3215 connecting the second sub-surface 3210 and the third sub-surface 3213. During the movement of the first sub-surface 3110 from the second sub-surface 3210 to the third sub-surface 3213, the first sub-surface 3110 can move along the second sub-surface 3210 to the first transition surface 3215, and then from the first transition surface 3215 to the third sub-surface 3213. The first transition surface 3215 may be a plane, forming an acute angle with the axial direction of the rotating shaft structure 300; that is, the first transition surface 3215 is inclined relative to the second sub-surface 3210 and the third sub-surface 3213. Alternatively, the first transition surface 3215 may be an arc surface, a corrugated surface, or the like.

[0152] In an embodiment where the second surface 321 has a third region 3211 and a fourth region 3212, the first transition surface 3215 may include a first transition sub-surface 32151 and a second transition sub-surface 32152. The second sub-surface 3210 may have a first sub-surface 32101 located in the third region 3211 and a second sub-surface 32102 located in the fourth region 3212. The second friction surface 323 of the third sub-surface 3213 may include a third sub-friction surface 3231 located in the third region 3211 and a fourth sub-friction surface 3232 located in the fourth region 3212. The first sub-surface 32101 and the third sub-friction surface 3231 can be connected via the first transition sub-surface 32151, and the second sub-surface 32102 and the fourth sub-friction surface 3232 can be connected via the second transition surface 32152.

[0153] A second transition surface 3216 can also be provided to connect the mating area and the third friction surface 324. The second transition surface 3216 may include a third transition sub-surface 32161 and a fourth transition sub-surface 32162. The first mating area 325 and the fifth sub-friction surface 3241 are connected by the third transition sub-surface 32161, and the second mating area 326 and the sixth sub-friction surface 3242 are connected by the fourth transition surface 32162.

[0154] like Figure 13 As shown, Figure 13 A diagram showing the relationship between the height of the second component 320 and its relative angle can be provided. The height of the second component 320 is the distance between different sub-surfaces of the second surface 321 and the side of the second component 320 facing away from the second surface 321 (along the axial direction of the rotating shaft structure 300).

[0155] Taking the maximum height between the second surface 321 of the second component 320 and the side of the second component 320 facing away from the second surface 321 as an example, where the initial relative angle is 0°, the first relative angle is 60°, the second relative angle is 110°, and the fourth relative angle is 180°, the explanation is as follows:

[0156] Between 0° and 20°, the first sub-surface 3110 of the first surface 311 moves from engaging with the second sub-surface 3210 to slidingly engaging with the first transition surface 3215, thereby increasing the height of the surface of the second surface 321 that contacts the first component 310 (greater than 1.4 cm and less than 1.5 cm).

[0157] Between 20° and 60°, the first sub-surface 3110 of the first surface 311, after passing through the first transition surface 3215, mates with the third sub-surface 3213, so that the height of the surface (third sub-surface 3213) of the second surface 321 that contacts the first component 310 is constant (such as a value greater than 1.4cm and less than 1.5cm, which can be 1.43cm, 1.45cm, 1.47cm, etc.). Since the third sub-surface 3213 has a second friction surface 323, the first friction surface 313 of the first sub-surface 3110 and the second friction surface 323 are in frictional contact.

[0158] Between 60° and 110°, the first sub-surface 3110 of the first surface 311 corresponds to the mating area (including the first mating area 325 and the second mating area 326). In order to make the first friction surface 313 of the first sub-surface 3110 fit with the mating area with a clearance, the height of the mating area is smaller than that of the third sub-surface 3213 (e.g., 1.35cm, 1.37cm, etc.).

[0159] Between 110° and 180°, the first sub-surface 3110 of the first surface 311, after passing through the second transition surface 3216, mates with the fourth sub-surface 3214. The height of the surface of the second surface 321 that contacts the first component 310 (the fourth sub-surface 3214) is increased (e.g., 1.5cm or other values ​​less than 1.5cm but greater than the height of the third sub-surface 3213). The fourth sub-surface 3214 has a third friction surface 324, so that the first friction surface 313 of the first sub-surface 3110 and the third friction surface 324 make frictional contact.

[0160] When the height of the second component 320 is different, the force-applying component 330 can apply different forces to bring the first component 310 and the second component 320 closer to each other.

[0161] like Figure 14 and Figure 15 As shown, Figure 14 This is a schematic diagram showing the engagement of the first component 310 and the second component 320 at different angles. Figure 15 This is a schematic diagram showing the projection of the first friction surface 313 of the first component 310 onto the second surface 321 of the second component 320 at different angles.

[0162] During the rotation of the first body 100 and the second body 200 along the first direction, the angles of the first component 310 and the second component 320 are, in sequence, the first angle A corresponding to the initial relative angle, the second angle B corresponding to the first relative angle, the third angle C corresponding to the second relative angle, and the fourth angle D corresponding to the fourth relative angle.

[0163] The inventors discovered that the relative angles between the first body 100 and the second body 200 of the electronic device are different, and the torque threshold for achieving one-handed operation of the first body 100 relative to the second body 200 also changes accordingly. To achieve one-handed operation, when the first body 100 is opened to approximately 80° relative to the second body 200, the torque provided by the hinge structure 300 needs to be appropriately reduced (depending on design requirements). After opening to the usable angle (e.g., 110° or close to 110°), the torque is increased again to prevent the first body 100 from falling when opened to 180° relative to the second body 200. Because the torque requirement for rotation of the first body 100 relative to the second body 200 provided by the hinge structure 300 is relatively small within the 80°~120° range (the first body 100 has a smaller center of gravity lever arm), it is sufficient to meet the touch force (e.g., the pressure applied to the functional surface 101 of the first body 100), and the required touch force can be greater than 180gf.

[0164] like Figure 16 As shown, taking an electronic device as an example, the overall design parameters of the electronic device are as follows:

[0165] The weight G1 of the first body 100 is 0.624 kg, and the first dimension a of the first body 100 along the direction close to the rotating shaft structure 300 can be 24.7 cm. When the first body 100 and the second body 200 are at a 90° angle, the first distance b from the center of gravity of the first body 100 in the vertical direction to the axis of the rotating shaft structure 300 is 12.1 cm, and the second distance c from the center of gravity of the first body 100 in the horizontal direction to the axis of the rotating shaft structure 300 is 0.9 cm.

[0166] The weight G2 of the second body 200 is 1.352 kg. The second body 200 has a support foot close to the pivot structure 300. The third dimension e from the center of gravity of the first body 100 in the horizontal direction to the support foot can be 9.47 cm. The fourth distance d from the support foot to the axis of the pivot structure 300 in the horizontal direction is 2.48 cm.

[0167] The torque assessment requirement for the 300 shaft structure is a maximum of 5.7 kgf•cm (minimum of 4.9 kgf•cm).

[0168] The minimum torque for a touch force of 180 gf when the first body 100 and the second body 200 are at a 110° angle is 3.82 kgf•cm. The peak value (the maximum force during a single press) at small angles (such as 0°-60°) is 5.7*1.1=6.27 kgf•cm.

[0169] The torque / force balance relationship can be used to calculate the torque threshold at which electronic devices can be operated with one hand at different angles, such as... Figure 17 The solid line (single-hand threshold opening) curve is shown in the graph.

[0170] As shown in the diagram above, opening with one hand at a small angle is not a problem. However, when approaching 60° or 70°, if the torque value of the pivot does not decrease, it will exceed the threshold curve for opening with one hand, and the end of the second body 200 away from the pivot structure 300 will tilt upwards. Therefore, to avoid this tilting, the torque value provided by the pivot structure 300 needs to decrease at least when approaching 60° or 70°. Figure 17 The dotted line (the upper limit of the torque provided by the shaft structure 300) is shown in the graph.

[0171] For specific calculations, we can take the special angle of 90° between the first body 100 and the second body 200 as an example. When the first body 100 and the second body 200 are at 90°, the torque T provided by the rotating shaft structure 300 is... MAX (90) The specific calculation is as follows:

[0172] ;

[0173] ;

[0174] ;

[0175] .

[0176] Therefore, when the hinge structure 300 is opened to 110°, the upper limit of the torque provided by the hinge structure 300 cannot exceed ~5.2 kgf.cm, and the lower limit of the torque is 4.4 kgf.cm, which can meet the requirements of touch force (such as the quantitative standard of the force required for touchpad pressing operation).

[0177] However, the minimum torque of 4.4 kgf.cm cannot meet the minimum torque requirement for the first body to not fall (not drop the screen) 100; the torque needs to be >4.9 kgf.cm.

[0178] Therefore, the torque provided by the pivot structure 300 of this application can be reduced first and then increased, which can meet the needs of one-handed operation and prevent the first body 100 from falling (screen drop).

[0179] like Figure 17As shown, taking an initial relative angle (first angle A) of 0°, a first relative angle (second angle B) of 60°, a second relative angle (third angle C) of 110°, and a fourth relative angle (fourth angle D) of 180° as an example, when the first body 100 and the second body 200 are at the third relative angle, the intermediate angle formed by the first component 310 and the second component 320 can be 140°. For example... Figure 17 As shown in the dotted line (upper limit value of torque provided by the pivot structure 300) curve, the upper limit value of torque provided by the pivot structure 300 within the range of 0°-110° is less than the single-hand opening threshold.

[0180] This application also provides a rotating shaft structure 300, which may include a first component 310, a second component 320, and a force-applying component 330. The first component 310 may have a first surface 311, and the first surface 311 may have a first friction surface 313. The second component 320 is rotatable relative to the first component 310, and the second surface 321 of the second component 320 facing the first surface 311 may have a second friction surface 323. The force-applying component 330 is capable of applying a force that brings the first component 310 and the second component 320 closer together. During the rotation of the first component 310 and the second component 320 along a first direction, the frictional contact area between the first friction surface 313 and the second friction surface 323 can change, thereby changing the torque provided by the rotating shaft structure 300. The torque may tend to decrease or increase. That is, the torque provided by the rotating shaft structure 300 can first decrease and then increase, or the torque provided by the rotating shaft structure 300 can first increase and then decrease, or the torque provided by the rotating shaft structure 300 can sequentially increase, decrease, and increase.

[0181] By adjusting the frictional contact area between the first friction surface 313 and the second friction surface 323, the torque provided by the rotating shaft structure 300 can be adjusted accordingly. In an embodiment where the torque provided by the rotating shaft structure 300 first decreases and then increases, the need for one-handed operation can be met while preventing screen drop (e.g., the first body 100, which rotates synchronously with the first component 310, can rotate relative to the second component 320 based on its own gravity).

[0182] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0183] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electronic device, comprising: first ontology; Second entity; A rotating shaft structure rotatably connects the first body and the second body to switch between a first device form and a second device form; in, During the process of switching from the first device mode to the second device mode, the first body rotates relative to the second body in a first direction so that the angle between the first body and the second body can be switched from a first relative angle to a second relative angle. In the second device mode, the angle between the first body and the second body is the second relative angle. During the process of switching from the first relative angle to the second relative angle, the torque provided by the rotating shaft structure tends to decrease. After reaching the second relative angle, the first body rotates relative to the second body along the first direction, and the torque provided by the rotating shaft structure tends to increase.

2. The electronic device as claimed in claim 1, wherein the rotating shaft structure comprises: A first component, the first component having a first surface, the first surface having a first friction surface; The second component is rotatable relative to the first component, so that the first component and the second component switch between different relative positions, the second component facing a second surface of the first surface, the second surface having a second friction surface; A force-applying component, the force-applying component being capable of applying a force that brings the first component and the second component closer together; in, At the first relative angle, the first friction surface and the second friction surface have a first contact area; At the second relative angle, the first friction surface and the second friction surface have a second contact area, and the first contact area is larger than the second contact area.

3. The electronic device as claimed in claim 2, wherein the first surface includes a relatively independent first region and a second region, the first region and the second region are spaced at different distances from the rotation center of the first component, and the first friction surface includes a first sub-friction surface disposed in the first region and a second sub-friction surface disposed in the second region; The second surface has a third region and a fourth region, the third region and the fourth region being at different distances from the rotation center of the second component, and the second friction surface includes a third sub-friction surface disposed in the third region and a fourth sub-friction surface disposed in the fourth region; Along the arrangement direction of the first component and the second component, the projection of the first region at least partially overlaps with the projection of the third region, and the projection of the second region at least partially overlaps with the projection of the fourth region; At the first relative angle, the first sub-friction surface and the third sub-friction surface have a first sub-contact area, and the second sub-friction surface and the fourth sub-friction surface have a second sub-contact area; At the second relative angle, the first sub-friction surface and the third sub-friction surface have a third sub-contact area, and the second sub-friction surface and the fourth sub-friction surface have a fourth sub-contact area. The first sub-contact area is greater than the third sub-contact area and / or the second sub-contact area is greater than the fourth sub-contact area.

4. The electronic device of claim 3, wherein the second surface has a third friction surface, and the second friction surface is different from the third friction surface; The first body and the second body can form a third relative angle, and the first body can switch from the second relative angle to the third relative angle during the rotation of the first body relative to the second body along the first direction; During the process of switching from the second relative angle to the third relative angle, the frictional contact area between the first friction surface and the third friction surface increases, thereby increasing the torque provided by the rotating shaft structure.

5. The electronic device of claim 4, wherein at least one of the following is satisfied: The electronic device has a third device form, and a fourth relative angle can be formed between the first body and the second body. During the rotation of the first body relative to the second body along the first direction, it can switch from the third relative angle to the fourth relative angle. During the switching from the third relative angle to the fourth relative angle, the friction contact area between the first friction surface and the third friction surface satisfies the condition of invariance. Along the arrangement direction of the first component and the second component, the second friction surface is located on the side of the third friction surface away from the first component; wherein, During the change from the first relative angle to the second relative angle, the first friction surface can rub against the second friction surface, and the force-applying component applies a first pressure; during the change from the second relative angle to the third relative angle, the first friction surface can rub against the third friction surface, and the force-applying component applies a second pressure, which is greater than the first pressure.

6. The electronic device of claim 5, wherein at least one of the following is satisfied: The friction coefficients of the second friction surface and the third friction surface may be the same or different; The force-applying component is an elastic component that applies elastic force along the rotation axis of the first component and the second component.

7. The electronic device of claim 4, wherein the third friction surface comprises a fifth sub-friction surface disposed in the third region and a sixth sub-friction surface disposed in the fourth region; The third sub-friction surface and the fifth sub-friction surface have a first mating area that is clearance-fitted with the first friction surface, and the fourth sub-friction surface and the sixth sub-friction surface have a second mating area that is clearance-fitted with the first friction surface; During the process of switching from the first relative angle to the second relative angle, the first sub-friction surface corresponds at least partially to the first mating area and / or the second sub-friction surface corresponds at least partially to the second mating area; During the process of switching from the second relative angle to the third relative angle, the first sub-friction surface comes into frictional contact with the fifth sub-friction surface and / or the second sub-friction surface comes into frictional contact with the sixth sub-friction surface.

8. The electronic device of claim 7, wherein at least one of the following is satisfied: The first sub-friction surface and the second sub-friction surface are located on opposite sides of the rotation center of the first component; The third sub-friction surface and the fourth sub-friction surface are located on opposite sides of the rotation center of the second component; The fifth sub-friction surface and the sixth sub-friction surface are located on opposite sides of the rotation center of the second component.

9. The electronic device of claim 2, wherein the first surface has a first sub-surface protruding toward the second component, the first sub-surface having the first friction surface; the second surface has a second sub-surface and a third sub-surface, the second sub-surface being located on the side of the third sub-surface away from the first component, the third sub-surface having the second friction surface; In the first device configuration, the angle between the first body and the second body is an initial relative angle. The first body can rotate relative to the second body in a first direction to switch the angle between the first body and the second body from the initial relative angle to the first relative angle. At the initial relative angle, the first sub-surface and the second sub-surface cooperate to provide a limiting force that restricts the relative rotation of the first component and the second component. And / or, the second surface has a first transition surface connecting the second sub-surface and the third sub-surface; during the movement of the first sub-surface from the second sub-surface to the third sub-surface, the first sub-surface moves along the second sub-surface to the first transition surface, and then moves from the first transition surface to the third sub-surface.

10. A rotating shaft structure, comprising: A first component, the first component having a first surface, the first surface having a first friction surface; The second component is rotatable relative to the first component, and the second component has a second friction surface on its second surface facing the first surface. A force-applying component, the force-applying component being capable of applying a force that brings the first component and the second component closer together; in, During the rotation of the first component and the second component along the first direction, the frictional contact area between the first friction surface and the second friction surface can change, so that the torque provided by the rotating shaft structure can show a decreasing or increasing trend.

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