Rotating shaft mechanism, support device and foldable screen terminal

Abstract

The present invention relates to the technical field of electronic devices. Provided are a rotating shaft mechanism (23), a support device (20) and a foldable screen terminal (01), which are used for solving the problems of a small space for the arrangement of the rotating shaft mechanism (23) of the foldable screen terminal (01), an insufficient damping force generated by the rotating shaft mechanism (23), and a decreased rotational feel. The rotating shaft mechanism (23) comprises a middle beam (100), door panels (200), swing arms (300), damping assemblies (400) and elastic members (430). The door panels (200) can rotate relative to the middle beam (100). The swing arms (300) are arranged between the door panels (200) and the middle beam (100), a first end of each swing arm (300) is rotationally connected to the middle beam (100), and a second end of each swing arm (300) is slidably connected to the corresponding door panel (200); and during the process of the swing arms (300) driving the door panels (200) to rotate relative to the middle beam (100), the swing arms (300) and the door panels (200) slide relative to each other. The damping assemblies (400) are arranged between the swing arms (300) and the door panels (200), and the damping assemblies (400) comprise cam structures (410), sliding members (420) and the elastic members (430). During the sliding of the door panels (200) and the swing arms (300) relative to each other, the cam structures (410) can push the sliding members (420) to slide along the axes of rotation of the swing arms (300), so as to compress the elastic members (430) and generate a damping force.

Description

A rotating shaft mechanism, a supporting device, and a folding screen terminal

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on November 30, 2023, with application number 202311646873.5 and invention name “A hinge mechanism, support device and folding screen terminal”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of electronic equipment, and in particular to a hinge mechanism, a support device, and a folding screen terminal. Background Art

[0003] With the advancement of technology, the era of large-screen smart terminals has arrived. In order to solve the problems of traditional tablets being large and inconvenient to carry and straight-screen mobile phones having small screens, foldable screen terminals came into being.

[0004] Foldable screen terminals can display a large screen when unfolded, and can be compact and easy to carry when folded. Therefore, they are favored by more and more users.

[0005] However, with the development trend of terminal devices becoming lighter and thinner, the setting space of the hinge mechanism of foldable screen terminals continues to shrink, resulting in insufficient damping force generated by the hinge mechanism, a decrease in the rotation feel, and affecting the user experience.

[0006] Summary of the Invention

[0007] The embodiments of the present application provide a hinge mechanism, a support device, and a folding screen terminal, which are used to solve the problem that the hinge mechanism setting space of the folding screen terminal is reduced, resulting in insufficient damping force generated by the hinge mechanism, reduced rotation feel, and affecting user experience.

[0008] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0009] In a first aspect, a pivot mechanism is provided, which includes a center beam, a door panel, a swing arm, a damping assembly, and an elastic member. The door panel can rotate relative to the center beam. The swing arm is arranged between the door panel and the center beam, the first end of the swing arm is rotationally connected to the center beam, and the second end of the swing arm is slidingly connected to the door panel; in the process of the swing arm driving the door panel to rotate relative to the center beam, the swing arm and the door panel slide relative to each other, and the rotation axis of the swing arm and the sliding direction of the swing arm are perpendicular to each other. The damping assembly is arranged between the swing arm and the door panel, and the damping assembly includes a cam structure, a sliding member, and an elastic member. In the process of the door panel and the swing arm sliding relative to each other, the cam structure can push the sliding member to slide along the rotation axis of the swing arm to compress the elastic member and generate a damping force. That is, the compression direction of the elastic member is parallel to the rotation axis of the swing arm.

[0010] The hinge mechanism provided in the first aspect of the present application disposes a damping component between the door panel and the swing arm, thereby preventing elastic force from being applied to the center beam. This prevents deformation of the center beam and helps ensure its flatness. Furthermore, during relative sliding between the door panel and the swing arm, the cam structure pushes the sliding member, which compresses the elastic member in a direction parallel to the swing arm's rotation axis to generate a damping force. Specifically, the elastic member can be arranged in a direction parallel to the swing arm's rotation axis, thereby ensuring the length of the elastic member and ensuring that the elastic member can generate sufficient elastic force (i.e., damping force). This ensures a smooth rotation feel for the terminal device, thereby enhancing the user experience.

[0011] In one possible implementation of the first aspect of the present application, a sliding member is slidably mounted on a swing arm, wherein the sliding direction of the sliding member relative to the swing arm is parallel to the swing arm's rotation axis, and a cam structure is disposed between the door panel and the sliding member. In this configuration, the sliding member compresses the elastic member during its sliding relative to the swing arm, thereby generating sufficient damping force during rotation of the swing arm and the door panel relative to the center beam.

[0012] In one possible implementation of the first aspect of the present application, the cam structure includes a boss and a roller, one of which is disposed on the door panel, and the other of which is disposed on the sliding member. During relative sliding between the swing arm and the door panel, the boss and the roller abut against each other and move relative to each other in a direction parallel to the swing arm's rotational axis, thereby causing the sliding member to slide in a direction parallel to the swing arm's rotational axis. Thus, by abutting the boss and rolling along the surface of the boss, the boss can apply a force component parallel to the swing arm's rotational axis to the roller, thereby causing the sliding member to slide in that direction, thereby compressing the elastic member.

[0013] In one possible implementation of the first aspect of the present application, the roller is rotatably connected to the sliding member or door panel, with the roller's rotational axis perpendicular to the sliding direction of the sliding member and the swing arm. With this structure, the roller can roll along the surface of the boss, reducing friction, facilitating reduced wear between the roller and the boss, and minimizing damping force attenuation.

[0014] Exemplarily, the roller can be arranged on the sliding member, and the above-mentioned damping assembly can also include a rotating shaft, which is fixed on the sliding member, the axis of the rotating shaft is perpendicular to the sliding direction of the swing arm, and the axis of the rotating shaft is perpendicular to the sliding direction of the sliding member, and the roller is sleeved on the rotating shaft, thereby realizing the rotation connection of the roller to the sliding member.

[0015] In a possible implementation of the first aspect of the present application, both side walls of the boss distributed along the sliding direction of the swing arm form guide slopes. During the relative sliding of the door panel and the swing arm, the roller slides along the guide slopes to make the sliding part slide in a direction parallel to the rotation axis of the swing arm.

[0016] In one possible implementation of the first aspect of the present application, a receiving groove is provided on the swing arm, and both the sliding member and the elastic member are disposed in the receiving groove, with the sliding member and the elastic member being arranged in a direction parallel to the rotation axis of the swing arm. This facilitates reducing the thickness of the hinge mechanism, thereby facilitating a thinner foldable screen terminal.

[0017] In one possible implementation of the first aspect of the present application, two sliding members are provided, and the elastic member is disposed between the two sliding members. A cam structure is disposed between each sliding member and the door panel. During relative sliding movement between the swing arm and the door panel, the two sliding members move in opposite directions. This allows both sliding members to compress the elastic member, further enhancing the damping force.

[0018] In one possible implementation of the first aspect of the present application, the hinge mechanism further includes a cover plate disposed on the swing arm, with the sliding member and the elastic member disposed between the bottom surface of the receiving groove and the cover plate. In this configuration, the cover plate effectively protects the elastic member and the sliding member, effectively limiting their position, thereby improving the reliability of the overall structure.

[0019] In a possible implementation of the first aspect of the present application, a notch is provided on the sidewall of the receiving groove, and the sliding member and the cam structure contact each other through the notch. In this structure, the boss and the roller can abut each other at the notch, which is conducive to further reducing the thickness.

[0020] In a possible implementation of the first aspect of the present application, the elastic member is a spring, the axis of the spring is parallel to the rotation axis of the swing arm. For example, the spring is a conventional spring, and the cross section of its helical line can be circular, square, polygonal or other shapes.

[0021] In one possible implementation of the first aspect of the present application, a plurality of springs are provided, the plurality of springs being distributed along the sliding direction of the swing arm, and the axes of the plurality of springs being parallel to each other. In this structure, the required damping force can be adjusted by controlling the number of springs.

[0022] In one possible implementation of the first aspect of the present application, the damping assembly further includes a limiting shaft, the spring being sleeved on the limiting shaft, and the limiting shaft being fixed relative to the sliding member. In this configuration, the limiting shaft can limit the compression direction of the spring, thereby reducing the risk of bending of the spring during compression, thereby improving the reliability of the overall structure.

[0023] In one possible implementation of the first aspect of the present application, the elastic member is a shaped spring, and the compression direction of the shaped spring is parallel to the rotation axis of the swing arm. In this way, shaped springs of different structures or shapes can be selected according to actual design requirements, which helps to expand the range of elastic member options.

[0024] In one possible implementation of the first aspect of the present application, the shaped spring includes a leaf spring, the surface of which is parallel to the rotation axis and sliding direction of the swing arm, and the leaf spring is provided with a plurality of hollow structures, at least portions of which are distributed parallel to the rotation axis of the swing arm. This allows the elastic force of the leaf spring to be adjusted based on the spacing of the hollow structures. Consequently, the thickness of the leaf spring has a minimal effect on its elastic force, thereby reducing the thickness of the leaf spring and further facilitating a thinner folding terminal.

[0025] In one possible implementation of the first aspect of the present application, a slot is defined in the door panel, the second end of the swing arm extends into the slot, and the cam structure is disposed between the sidewall of the slot and the sliding member. This structure prevents the formation of protruding structures on the surface of the door panel, thereby further facilitating a thinner terminal device.

[0026] In one possible implementation of the first aspect of the present application, a door panel includes a panel body and a connecting block, wherein the panel body is connected to the connecting block, and a slide groove is defined in the connecting block. In this structure, the panel body is connected to the swing arm via the connecting block, and can be fixedly connected to a structural member such as a housing. This connection block not only ensures support strength between the swing arm and the door panel, but also helps reduce the overall weight of the door panel.

[0027] In the second aspect, a supporting device is provided, which includes a first shell, a second shell and a rotating shaft mechanism as described in any of the above technical solutions, and door panels are provided on both sides of the center beam of the rotating shaft mechanism, and the first shell and the second shell are fixedly connected to the door panels on both sides of the center beam respectively.

[0028] The supporting device provided in the second aspect of the present application, since it includes the rotating shaft mechanism described in any of the above technical solutions, can solve the same technical problems and achieve the same technical effects.

[0029] In a third aspect, a foldable screen terminal is provided, comprising a foldable screen and a support device. The foldable screen comprises a first portion, a second portion, and a third portion, with the third portion being located between the first and second portions. The support device is the support device described in the above technical solution, wherein the first portion of the foldable screen is fixed to the first housing, the second portion of the foldable screen is fixed to the second housing, and the third portion of the foldable screen is disposed on the hinge mechanism.

[0030] The folding screen terminal provided in the third aspect of the present application, because it includes the supporting device described in the above technical solution, can solve the same technical problems and achieve the same technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] FIG1 is a structural diagram of a foldable screen terminal provided in an embodiment of the present application;

[0032] FIG2 is a front view of a foldable screen terminal provided in an embodiment of the present application;

[0033] FIG3 is a front view of a foldable screen terminal (in a folded state) provided in an embodiment of the present application;

[0034] FIG4 is a structural diagram of a rotating shaft mechanism provided by the related art;

[0035] FIG5 is a cross-sectional view taken along line AA of FIG4 ;

[0036] FIG6 is a structural diagram of a rotating shaft mechanism provided in an embodiment of the present application;

[0037] FIG7 is an exploded view of a door panel provided in an embodiment of the present application;

[0038] FIG8 is an exploded view of the rotating shaft mechanism provided in FIG6 ;

[0039] FIG9 is an assembly diagram of the rotating shaft mechanism provided in FIG6 ;

[0040] FIG10 is a structural diagram of another rotating shaft mechanism provided in an embodiment of the present application;

[0041] FIG11 is a structural diagram of another rotating shaft mechanism provided in an embodiment of the present application;

[0042] FIG12 is an exploded view of a roller and a sliding member provided in an embodiment of the present application;

[0043] FIG13 is an enlarged view of the structure of area B in FIG9 ;

[0044] FIG14 is a structural diagram of the rotating shaft mechanism provided in an embodiment of the present application in an expanded position;

[0045] FIG15 is a structural diagram of the rotating shaft mechanism provided in an embodiment of the present application in a state between an unfolded position and a folded position;

[0046] FIG16 is a three-dimensional structural diagram of FIG15;

[0047] FIG17 is a structural diagram of the rotating shaft mechanism provided in an embodiment of the present application in a folded position;

[0048] FIG18 is a three-dimensional structural diagram of FIG17;

[0049] FIG19 is a structural diagram of another rotating shaft mechanism provided in an embodiment of the present application;

[0050] FIG20 is an exploded view of the rotating shaft mechanism provided in FIG19;

[0051] FIG21 is a structural diagram of a spring provided in an embodiment of the present application;

[0052] FIG22 is a perspective view of FIG21;

[0053] FIG23 is a structural diagram of another spring provided in an embodiment of the present application;

[0054] FIG24 is a perspective view of FIG23;

[0055] FIG25 is a structural diagram of a leaf spring provided in an embodiment of the present application;

[0056] FIG26 is a structural diagram of another rotating shaft mechanism provided in an embodiment of the present application (the elastic member is the leaf spring provided in FIG25 );

[0057] FIG27 is a structural diagram of another leaf spring provided in an embodiment of the present application;

[0058] FIG28 is a structural diagram of another leaf spring provided in an embodiment of the present application;

[0059] FIG29 is a structural diagram of another leaf spring provided in an embodiment of the present application;

[0060] FIG30 is a structural diagram of another leaf spring provided in an embodiment of the present application;

[0061] FIG31 is a structural diagram of another leaf spring provided in an embodiment of the present application;

[0062] FIG32 is a structural diagram of another leaf spring provided in an embodiment of the present application;

[0063] FIG33 is a structural diagram of another leaf spring provided in an embodiment of the present application;

[0064] FIG34 is a structural diagram of another leaf spring provided in an embodiment of the present application.

[0065] Figure numerals: 01-folding screen terminal; 10-folding screen; 11-first part; 12-second part; 13-third part; 20-support device; 21-first shell; 21a-first fitting surface; 22-second shell; 22a-second fitting surface; 23-rotating shaft mechanism; 23a-third fitting surface; 100-center beam; 200-door panel; 210-panel body; 220-connecting block; 221-slide groove; 300-swing arm; 310-accommodating groove; 320-notch; 400-damping assembly; 401-cam portion; 402-support Support frame; 403-rolling part; 404-elastic element; 410-cam structure; 411-boss; 411a-guide slope; 411b-first guide slope; 411c-second guide slope; 411d-support surface; 412-roller; 420-sliding member; 430-elastic member; 431 spring; 432-leaf spring; 432a-hollow structure; 432b-sub-region; 432c-abutment part; 432d-first elastic part; 432e-second elastic part; 440-rotating shaft; 450-limiting shaft; 500-cover plate. DETAILED DESCRIPTION

[0066] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0067] In the following, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Therefore, a feature specified as "first," "second," etc. may explicitly or implicitly include one or more of the features.

[0068] In addition, in this application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they can change accordingly according to changes in the orientation of the components in the drawings.

[0069] In this application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0070] An embodiment of the present application provides a foldable screen terminal. The foldable screen terminal can be an electronic device with a foldable screen, such as a foldable screen mobile phone. The foldable screen mobile phone can be a mobile phone with an external foldable display or a mobile phone with an internal foldable display. For ease of explanation, the following examples are based on a mobile phone with an external foldable display as an example.

[0071] Specifically, referring to Figures 1 and 2, Figure 1 is a structural diagram of a folding screen terminal 01 provided in an embodiment of the present application, and Figure 2 is a front view of a folding screen terminal 01 provided in an embodiment of the present application. The folding screen terminal 01 may include a folding screen 10 and a supporting device 20.

[0072] To facilitate the following description, an XYZ coordinate system is established, defining the width direction of the foldable screen terminal 01 as the X-axis direction, the length direction of the foldable screen terminal 01 as the Y-axis direction, and the thickness direction of the foldable screen terminal 01 as the Z-axis direction. It is understood that the coordinate system of the electronic device can be flexibly set according to actual needs. This application only provides an example and should not be considered as a special limitation of this application.

[0073] It should be understood that FIG1 and FIG2 merely schematically illustrate some components included in the electronic device, and the actual shape, actual size, actual position and actual structure of these components are not limited by FIG1 and FIG2.

[0074] The above-mentioned folding screen 10 is used to display images, videos, etc. The folding screen 10 includes a first part 11, a second part 12 and a third part 13, and the third part 13 is located between the first part 11 and the second part 12. When the folding screen 10 is folded, the third part 13 is bent, and the first part 11 and the second part 12 are arranged away from each other. At least the third part 13 of the folding screen 10 is made of a flexible material, and the first part 11 and the second part 12 can be made of a flexible material, or a rigid material, or partially made of a flexible material and partially made of a rigid material. Therefore, this application does not make any special restrictions on this.

[0075] Among them, the above-mentioned folding screen 10 can be an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode or an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode (MID) display screen, a micro organic light-emitting diode (MID) display screen, a micro organic light-emitting diode (MID) display screen, a quantum dot light-emitting diode (QLED) display screen, a liquid crystal display (LCD), etc.

[0076] The above-mentioned supporting device 20 is used to support the folding screen 10. The supporting device 20 may include a first shell 21, a second shell 22 and a hinge mechanism 23, and the hinge mechanism 23 is connected between the first shell 21 and the second shell 22. The first shell 21 has a first fitting surface 21a, and the first part 11 of the folding screen 10 is supported and fitted on the first fitting surface 21a. The second shell 22 has a second fitting surface 22a, and the second part 12 of the folding screen 10 is supported and fitted on the second fitting surface 22a. The hinge mechanism 23 has a third fitting surface 23a, and the third part 13 of the folding screen 10 is supported and fitted on the third fitting surface 23a. The first shell 21 and the second shell 22 are rotatably connected by the hinge mechanism 23, so that the folding screen terminal 01 can rotate between the unfolded state and the folded state.

[0077] When the foldable screen terminal 01 is in the unfolded state, the first, second, and third surfaces 21a, 22a, and 23a are coplanar, allowing the foldable screen 10 to be fully unfolded while maintaining its flatness. In this state, a large-screen display is possible, providing a better user experience. For example, when a user is watching a movie on the foldable screen terminal 01, they can unfold the foldable screen terminal 01 and use the large screen for a better viewing experience.

[0078] When the folding screen terminal 01 is in a folded state, please refer to Figure 3, which is a main view of the folding screen terminal 01 (in a folded state) provided in an embodiment of the present application. The third part 13 of the folding screen 10 is bent, the first part 11 and the second part 12 of the folding screen 10 are separated from each other, and the supporting device 20 is located between the first part 11 and the second part 12 of the folding screen 10. At this time, the folding screen terminal 01 only uses the first part 11 or the second part 12 of the folding screen 10 to display the image, that is, the user can use the small screen display to achieve one-handed operation. For example, when the user takes public transportation, since one hand is needed to hold the handrail, the device can only be held with one hand. Therefore, the folding screen terminal 01 can be folded to reduce the width of the terminal for one-handed operation, which is conducive to further improving the user experience.

[0079] In this way, different usage states of the folding screen terminal 01 can be suitable for different application scenarios. Users can freely choose the usage state of the folding screen terminal 01 according to the specific application scenario, which is conducive to giving users a better usage experience.

[0080] The hinge mechanism 23 is used to drive the first housing 21 and the second housing 22 to rotate between the unfolded position and the folded position, so that the foldable screen terminal 01 can rotate between the unfolded state and the folded state. Please refer to Figures 4 and 5. Figure 4 is a structural diagram of the hinge mechanism 23 provided by the related art, and Figure 5 is a cross-sectional view taken along line AA of Figure 4.

[0081] The pivot mechanism 23 includes a center beam 100, a door panel 200, and a swing arm 300. Door panels 200 are provided on both sides of the center beam 100 along its length (i.e., the aforementioned Y-axis direction). A swing arm 300 is provided between the door panel 200 and the center beam 100. A first end of the swing arm 300 is rotationally connected to the center beam 100, and a second end of the swing arm 300 is slidably connected to the door panel 200. In some embodiments, if multiple swing arms 300 are provided between the door panel 200 and the center beam 100, the multiple swing arms 300 are spaced apart along the length of the center beam 100.

[0082] During the process of the swing arm 300 driving the door panel 200 to rotate relative to the center beam 100, the swing arm 300 and the door panel 200 are able to slide relative to each other, and the rotation axis of the swing arm 300 (i.e., the Y-axis direction) and the sliding direction of the swing arm 300 (i.e., the X-axis direction) are perpendicular to each other. The first housing 21 and the second housing 22 shown in Figures 1 and 2 are respectively located on either side of the center beam 100 and are fixedly connected to the adjacent door panel 200, thereby driving the first housing 21 and the second housing 22 to rotate between the deployed position and the folded position via the door panel 200.

[0083] In addition, in order to improve the hand feel of the folding screen terminal 01 during the rotation process, the shaft mechanism 23 may further be provided with a damping component 400 , which is provided between the swing arm 300 and the door panel 200 .

[0084] Specifically, referring to Figures 4 and 5 , the damping assembly 400 may include a cam portion 401 formed in an edge region of the center beam 100 (an edge region extending along the Y-axis), a support frame 402 slidably connected to the swing arm 300, a rolling portion 403 rotatably connected to the support frame 402, and an elastic element 404 (e.g., a compression spring) abutting between the support frame 402 and the swing arm 300. The support frame 402 is capable of rotating synchronously with the swing arm 300, and the rolling portion 403 is capable of abutting against the cam portion 401.

[0085] During the synchronous rotation of the support frame 402 and the swing arm 300, the rolling portion 403 abuts against the cam portion 401 and rolls along the surface of the cam portion 401. During the rolling of the rolling portion 403 along the surface of the cam portion 401, the rolling portion 403 can push the support frame 402 and the swing arm 300 to slide relative to each other and compress the elastic element 404.

[0086] In this way, when the folding screen terminal 01 rotates between the unfolded position and the folded position, the rolling portion 403 abuts against the cam portion 401 and rolls along the surface of the cam portion 401, causing the support frame 402 to slide relative to the swing arm 300 and compressing the elastic element 404 to generate an elastic force. Therefore, the elastic element 404 applies a reaction force to the support frame 402, thereby forming a damping force between the rolling portion 403 and the cam portion 401. When the user rotates the folding screen terminal 01, it can play a damping role to improve the user's feel. In addition, it can reduce the risk of excessive force by the user, causing damage to the device.

[0087] As electronic devices continue to develop towards being lighter and thinner, the size of the folding screen terminal 01 is getting smaller and smaller, and the size of the hinge mechanism 23 is also constantly getting thinner and narrower (i.e., the size along the Z-axis and X-axis directions is reduced), so that the setting space of the above-mentioned damping component 400 is limited.

[0088] Since the above-mentioned elastic element 404 is arranged along the X-axis direction, when the elastic element 404 is compressed along the X-direction, a damping force (i.e., elastic force) can be generated. When the width dimension of the hinge mechanism 23 is reduced, the length dimension of the elastic element 404 (the dimension along the compression direction of the elastic member 430, i.e., the X-direction) will be reduced, which will in turn cause the damping force that the elastic member 430 can provide to be reduced. Therefore, it is difficult for the folding screen terminal 01 to achieve a good rotation feel during the rotation process. In addition, under the action of the elastic force of the elastic member 430, the rolling portion 403 abuts against the cam portion 401 in the edge area of ​​the middle beam 100, which can easily cause the middle beam 100 to deform, resulting in a deterioration in flatness and affecting the user experience.

[0089] To address the above issues, the present invention provides another hinge mechanism 23 that can be used in the folding screen terminal 01. Please refer to Figures 6 and 7. Figure 6 is a structural diagram of a hinge mechanism 23 provided in the present invention, and Figure 7 is an exploded view of a door panel 200 provided in the present invention.

[0090] Specifically, the pivot mechanism 23 may include the aforementioned center beam 100, door panels 200, swing arms 300, and a damping assembly 400. Door panels 200 are provided on both sides of the center beam 100 along its length, and the door panels 200 on either side of the center beam 100 are fixedly connected to the first shell 21 and the second shell 22, respectively. The swing arm 300 is disposed between the center beam 100 and the door panels 200, with a first end of the swing arm 300 being rotationally connected to the center beam 100 and a second end of the swing arm 300 being slidingly connected to the door panels 200. The rotation axis of the swing arm 300 (i.e., the Y-axis direction) and the sliding direction of the swing arm 300 (i.e., the X-axis direction) are perpendicular to each other.

[0091] The door panel 200 may be provided with a slide groove 221 extending along the X-axis direction. The second end of the swing arm 300 extends into the slide groove 221 on the door panel 200 to achieve a sliding connection between the swing arm 300 and the door panel 200. In some embodiments, referring to FIG7 , the door panel 200 may include a panel body 210 and a connecting block 220. The panel body 210 is configured to be fixedly connected to the first housing 21 and the second housing 22. The connecting block 220 is connected to the panel body 210. The swing arm 300 is slidably connected to the connecting block 220. That is, the slide groove 221 may be provided on the connecting block 220. When the swing arm 300 rotates, the connecting block 220 and the panel body 210 are driven to rotate.

[0092] It should be noted that the aforementioned chute 221 extending along the X-axis direction means that when the foldable screen terminal 01 is in the unfolded or folded state, that is, when the hinge mechanism 23 is in the unfolded position or the folded position, the chute 221 extends along the width direction of the foldable screen terminal (that is, the X-axis direction). When the hinge mechanism 23 is between the unfolded position and the folded position, the extension direction of the chute 221 forms an angle with the X-axis direction and is perpendicular to the Y-axis direction.

[0093] Furthermore, the connection between the plate body 210 and the connecting block 220 can be a fixed connection, i.e., the plate body 210 and the connecting block 220 move synchronously, or a movable connection, i.e., the plate body 210 and the connecting block 220 can move relative to each other. Therefore, this application does not impose any particular limitation on this.

[0094] Therefore, in the following embodiments, the sliding connection between the swing arm 300 and the connecting block 220 is used as an example for description, and only the connecting block 220 is shown in the subsequent figures. Referring to Figures 8 and 9, Figure 8 is an exploded view of the rotating shaft mechanism 23 shown in Figure 6, and Figure 9 is an assembled view of the rotating shaft mechanism 23 shown in Figure 6.

[0095] The damping assembly 400 may include a cam structure 410, a sliding member 420, and an elastic member 430. During the relative sliding movement between the connecting block 220 of the door panel 200 and the swing arm 300, the cam structure 410 pushes the sliding member 420 and compresses the elastic member 430 to generate a damping force. The compression direction of the elastic member 430 is parallel to the rotation axis of the swing arm 300, i.e., the elastic member 430 is compressed along the Y-axis.

[0096] In this way, the elastic member 430 of the damping assembly 400 is compressed in a direction parallel to the rotation axis of the swing arm 300, i.e., in the Y-axis direction. Therefore, the space for the elastic member 430 can be guaranteed, that is, the elastic force provided by the elastic member 430 when compressed can be guaranteed, thereby ensuring that the damping assembly 400 can provide sufficient damping force, so that when the user rotates the foldable screen terminal 01, they can have a good rotation feel.

[0097] In addition, the above-mentioned damping component 400 is arranged between the connecting block 220 and the swing arm 300 of the door panel 200, that is, the force generated by the damping component 400 is applied to the connecting block 220 and the swing arm 300, thereby effectively avoiding the deformation of the center beam 100 due to force, which is beneficial to ensuring the integrity of the center beam 100 and extending the service life of the center beam 100.

[0098] In some embodiments, referring to Figures 8 and 9 , the sliding member 420 may be a slider that can be slidably disposed on the swing arm 300. That is, the sliding member 420 is slidably connected to the swing arm 300, and the sliding direction of the sliding member 420 relative to the swing arm 300 is parallel to the rotation axis of the swing arm 300. That is, the sliding member 420 can slide relative to the swing arm 300 along the Y-axis direction. The cam structure 410 is disposed between the sliding member 420 and the connecting block 220 of the door panel 200. Therefore, the cam structure 410 can drive the sliding member 420 to slide along the Y-axis direction, thereby causing the sliding member 420 to compress the elastic member 430 along the Y-axis direction.

[0099] Exemplarily, a receiving groove 310 can be opened on the swing arm 300, and the receiving groove 310 can extend along the Y-axis direction. The sliding member 420 and the elastic member 430 are both arranged in the receiving groove 310, and the sliding member 420 and the elastic member 430 are distributed along a direction parallel to the rotation axis of the swing arm 300 (i.e., the Y-axis direction).

[0100] In addition, there are two sliding members 420, and the elastic member 430 is arranged between the two sliding members 420, that is, the two sliding members 420 are respectively arranged at the two ends of the accommodating groove 310 along the Y-axis direction, and the elastic member 430 abuts between the two sliding members 420. A cam structure 410 is provided between each sliding member 420 and the connecting block 220. During the relative sliding of the swing arm 300 and the door panel 200, the movement directions of the two sliding members 420 are opposite.

[0101] In this way, when the swing arm 300 and the connecting block 220 slide relative to each other, the two sliding members 420 distributed along the Y-axis can slide toward or away from each other. For example, when the foldable screen terminal 01 rotates from the folded state to the unfolded state, the two cam structures 410 respectively drive the two sliding members 420 to slide toward each other, thereby compressing the elastic member 430. When the foldable screen terminal 01 rotates to the unfolded position, the cam structure 410 and the sliding member 420 separate from each other, the driving force disappears, and the elastic force of the elastic member 430 causes the two sliding members 420 to slide away from each other.

[0102] Since both sliding members 420 can compress the elastic member 430 , it is beneficial for the elastic member 430 to generate a larger elastic member 430 , thereby being able to form a larger damping force, which is beneficial for ensuring the rotation feel when the terminal is rotated.

[0103] In other embodiments, please refer to FIG. 10 , which is a structural diagram of another rotating shaft mechanism 23 provided in an embodiment of the present application. Alternatively, only one sliding member 420 may be provided. Both the sliding member 420 and the elastic member 430 are disposed at the first end of the receiving groove 310 along the Y-axis. The elastic member 430 may abut between the sliding member 420 and the sidewall of the second end of the receiving groove 310 along the Y-axis, enabling the sliding member 420 to slide along the Y-axis and compress the elastic member 430.

[0104] On this basis, please continue to refer to Figure 10. The cam structure 410 can include a boss 411 and a roller 412. One of the boss 411 and the roller 412 can be disposed on the connecting block 220 of the door panel 200, and the other of the boss 411 and the roller 412 can be disposed on the sliding member 420. For example, the boss 411 can be disposed on the sidewall of the slide groove 221 of the connecting block 220, and the roller 412 can be disposed on the sliding member 420. When the swing arm 300 and the connecting block 220 slide relative to each other, the roller 412 abuts the boss 411. The boss 411 enables the roller 412 and the sliding member 420 to slide along the Y-axis, thereby distributing the cam structure 410 and the sliding member 420 along the Y-axis. At this time, the elastic member 430 is compressed.

[0105] Alternatively, in some other possible examples, please refer to Figure 11, which is a structural diagram of another rotating shaft mechanism 23 provided in an embodiment of the present application. The boss 411 can also be provided on the sliding member 420, and the roller 412 can also be provided on the side wall of the slide 221 of the connecting block 220. Moreover, in the case where two sliding members 420 are provided, the two rollers 412 can be provided on the corresponding sliding member 420, and the two bosses 411 can be provided on the two side walls of the slide 221 respectively (as shown in Figure 9). Alternatively, the two bosses 411 can be provided on the corresponding sliding member 420, and the two rollers 412 can be provided on the two side walls of the slide 221 respectively (as shown in Figure 11).

[0106] Alternatively, the roller 412 of one cam structure 410 may be arranged on the corresponding sliding member 420, and the boss 411 of the cam structure 410 may be arranged on the side wall of the slide groove 221; the roller 412 of another cam structure 410 may be arranged on the other side wall of the slide groove 221, and the boss 411 of the cam structure 410 may be arranged on the corresponding sliding member 420.

[0107] It is understandable that the roller 412 and the boss 411 of the cam structure 410 may be arranged at various positions, and their positions may be determined according to actual needs.

[0108] In addition, the roller 412 can be rotatably connected to the sliding member 420 or the connecting block 220. The rotation axis of the roller 412 is perpendicular to the sliding direction of the sliding member 420, and the rotation axis of the roller 412 is perpendicular to the sliding direction of the swing arm 300. That is, the rotation axis of the roller 412 is arranged along the Z-axis. For example, refer to Figure 12, which is an exploded view of the roller 412 and the sliding member 420 provided in an embodiment of the present application. When the roller 412 is arranged on the sliding member 420, a rotating shaft 440 can be fixedly provided on the sliding member 420. The rotating shaft 440 is arranged along the Z-axis, and the roller 412 is sleeved on the rotating shaft 440 and can rotate relative to the rotating shaft 440. In this way, when the roller 412 abuts the boss 411, the roller 412 can roll along the surface of the boss 411, thereby reducing friction and making the terminal rotation easier.

[0109] Based on this, in order to enable the roller 412 to separate from the boss 411 along the Y-axis direction when it abuts against the boss 411, please refer to Figure 13, which is an enlarged view of the structure of area B in Figure 9. Guide slopes 411a are formed on both side walls of the boss 411 distributed along the sliding direction of the swing arm 300, that is, guide slopes 411a are formed on both side walls of the boss 411 distributed along the X-axis direction. In addition, the two guide slopes 411a extend in a direction away from the side walls of the slide groove 221, and the two guide slopes 411a extend in a direction toward each other. That is, in the XY plane, the width of the boss 411 at one end close to the side wall of the slide groove 221 is a first width D1, and the width of the boss 411 at one end away from the side wall of the slide groove 221 is a second width D2, and the first width D1 is greater than the second width D2.

[0110] For example, referring to FIG14 , which illustrates the process of rotating the foldable screen terminal 01 from the unfolded state to the folded state, FIG14 is a structural diagram of the hinge mechanism 23 in the unfolded position provided by an embodiment of the present application. The two guide slopes 411a on the boss 411 are respectively a first guide slope 411b and a second guide slope 411c. The sidewall of the boss 411 away from the sidewall of the chute 221 is the support surface 411d. That is, the two side edges of the support surface 411d along the X-axis are respectively in contact with the first guide slope 411b and the second guide slope 411c.

[0111] Initially, the folding screen terminal 01 is in an unfolded state (as shown in Figures 1 and 2), that is, the above-mentioned swing arm 300 and the connecting block 220 (that is, the door panel 200, not shown in Figure 14) are in the unfolded position relative to the center beam 100. Please continue to refer to Figure 14 and combine it with Figure 6. At this time, the roller 412 is located on the side close to the first guide slope 411b.

[0112] The folding screen terminal 01 rotates from the unfolded state to the folded state, and the swing arm 300 slides relative to the connecting block 220 (as shown in the direction a in Figure 14). The swing arm 300 drives the sliding member 420 and the roller 412 to slide synchronously, and the roller 412 abuts against the first guide slope 411b of the boss 411.

[0113] Then, the swing arm 300 continues to slide, and the first guide slope 411b can apply a component force parallel to the Y-axis direction to the roller 412, so that the roller 412 and the sliding member 420 slide along the Y-axis direction and compress the elastic member 430, that is, the two sliding members 420 move toward each other along the direction parallel to the Y-axis, thereby compressing the elastic member 430.

[0114] Next, roller 412 rolls along first guide slope 411b. When roller 412 separates from first guide slope 411b and abuts support surface 411d, the elastic force generated by elastic member 430 is maximized, i.e., the damping force is maximized at this point. Referring to Figures 15 and 16, Figure 15 is a structural diagram of the hinge mechanism 23 according to an embodiment of the present application, shown between the deployed and folded positions, and Figure 16 is a perspective structural diagram of Figure 15.

[0115] Next, the foldable screen terminal 01 continues to rotate, and the swing arm 300 continues to slide relative to the connecting block 220 (i.e., in direction a in Figure 15). When the roller 412 rolls to a position where it abuts the second guide slope 411c, that is, the roller 412 separates from the support surface 411d, the squeezing force of the boss 411 on the roller 412 and the sliding member 420 disappears, and the elastic force of the elastic member 430 is released. The elastic member 430 pushes the two sliding members 420 in a direction parallel to the Y axis, away from each other, and the roller 412 rolls along the second guide slope 411c.

[0116] Finally, please refer to Figures 17 and 18. Figure 17 shows the structure of the hinge mechanism 23 in the folded position, while Figure 18 shows a perspective view of the structure of Figure 17. The roller 412 is located near the second guide slope 411c. At this point, the swing arm 300 and the connecting block 220 (i.e., the door panel 200) are rotated relative to the center beam 100 to the folded position, effectively reaching the folded state.

[0117] In addition, the process of the folding screen terminal 01 rotating from the folded state to the unfolded state is opposite to the above-mentioned movement process, and the principle is the same, so it will not be described repeatedly.

[0118] It should be noted that when the foldable screen terminal 01 is in the unfolded or folded state, the elastic member 430 is also compressed. When the foldable screen terminal 01 is in the unfolded or folded state, the elastic member 430 is compressed to a first degree. When the foldable screen terminal 01 is between the unfolded and folded states, the elastic member is compressed to a second degree, with the first degree being less than the second degree. This reduces the risk of relative movement between components when the foldable screen terminal 01 is in the unfolded or folded state, thereby improving the reliability of the overall structure.

[0119] It can be seen from this that since the above-mentioned elastic member 430 is arranged along the Y-axis direction, that is, the elastic member 430 can be compressed along the Y-axis direction, it is beneficial to increase the setting space of the elastic member 430, so that the damping component 400 can generate sufficient damping force, so that the user can obtain a better rotation feel during the rotation of the terminal, which is beneficial to improving the user experience.

[0120] On this basis, please refer to Figures 19 and 20. Figure 19 is a structural diagram of another rotating shaft mechanism 23 provided in an embodiment of the present application, and Figure 20 is an exploded view of the rotating shaft mechanism 23 provided in Figure 19. In this rotating shaft mechanism 23, a notch 320 can be provided on the side wall of the receiving groove 310 of the swing arm 300, and the sliding member 420 and the cam structure 410 can contact each other through the notch 320. For example, in the case where the roller 412 is provided on the sliding member 420 and the boss 411 is provided on the side wall of the sliding groove 221, the roller 412 can be provided at the notch 320 so that the roller 412 can abut against the boss 411.

[0121] In this way, the roller 412 and the boss 411 abut against each other through the notch 320 at the side wall of the accommodating groove 310, so as to prevent the roller 412 set on the sliding member 420 from extending out of the accommodating groove 310 along the Z-axis direction, which is beneficial to reducing the dimension in the Z-axis direction, thereby helping to reduce the thickness of the terminal.

[0122] 19 and 20 , the rotating shaft mechanism 23 may further include a cover plate 500 disposed on the swing arm 300. The sliding member 420 and the elastic member 430 are both disposed between the bottom surface of the receiving groove 310 and the cover plate 500. In other words, a cavity is formed between the cover plate 500 and the receiving groove 310, and the sliding member 420 and the elastic member 430 are both disposed within the cavity, thereby effectively protecting the sliding member 420 and the elastic member 430.

[0123] Furthermore, the cover plate 500 effectively limits the sliding member 420 and the elastic member 430, preventing them from falling out of the receiving groove 310 during movement. Furthermore, the roller 412 provided on the sliding member 420 can abut against the boss 411 through the notch 320. This means that the cover plate 500 effectively protects and limits the sliding member 420 and the elastic member 430 without affecting the normal operation of the damping assembly 400, thereby improving the reliability of the overall structure.

[0124] In some embodiments, the cover plate 500 and the swing arm 300 can be fixed by bonding, welding, clamping or bolting, so this application does not limit this.

[0125] From the above, it can be seen that the rotating shaft mechanism 23 provided in the embodiment of the present application, by setting the compression direction of the elastic member 430 along the Y-axis direction, can effectively increase the setting space of the elastic member 430, so that the damping assembly 400 can generate sufficient damping force and achieve a better rotation feel.

[0126] Based on this, please continue to refer to Figure 20. The elastic member 430 provided in the embodiment of the present application may include a spring 431. The axis of the spring 431 is parallel to the rotation axis of the swing arm 300, that is, it is arranged along the Y-axis direction. When only one sliding member 420 is provided, the spring 431 can abut between the sliding member 420 and the inner wall of the receiving groove 310. When two sliding members 420 are provided, the spring 431 abuts between the two sliding members 420. The following description takes the spring 431 abutting between the two sliding members 420 as an example.

[0127] In some embodiments, multiple springs 431 may be provided. These springs 431 may be distributed along the sliding direction of the swing arm 300, i.e., the springs 431 may be distributed along the X-axis, with the axes of the springs 431 being parallel to each other. In this configuration, the desired damping force can be achieved by adjusting the number of springs 431 provided. For example, one, two, three, or four springs 431 may be provided.

[0128] Furthermore, referring to FIG. 20 , the damping assembly 400 may further include a limiting shaft 450 , which may be fixed to the sliding member 420 , and the spring 431 may be sleeved on the limiting shaft 450 , i.e., the limiting shaft 450 is disposed along the Y-axis. Thus, when the spring 431 is compressed, the limiting shaft 450 can limit the compression of the spring 431 along the Y-axis, thereby reducing the risk of the spring 431 bending during compression and further improving the reliability of the overall structure.

[0129] In some embodiments, the number of the aforementioned limiting shafts 450 can correspond one-to-one with the number of springs 431, i.e., each spring 431 is provided with a corresponding limiting shaft 450. In this case, the limiting shafts 450 can be all provided on one sliding member 420, or some limiting shafts 450 can be provided on one of the two sliding members 420, and the remaining limiting shafts 450 can be provided on the other of the two sliding members 420. Alternatively, some springs 431 can be provided with limiting shafts 450, while some springs 431 are not provided with limiting shafts 450. Alternatively, one spring 431 can be provided with two limiting shafts 450, wherein the two limiting shafts 450 are respectively fixed to the two sliding members 420, i.e., the two ends of the spring 431 are respectively sleeved on the two limiting shafts 450, and the two limiting shafts 450 are spaced apart along the Y-axis direction. Therefore, the embodiments of the present application do not specifically limit the corresponding relationship between the limiting shafts 450 and the springs 431.

[0130] In addition, the spring 431 can be a conventional coil spring, and the cross-section of the coil of the spring 431 can be circular. Please refer to Figures 21 and 22. Figure 21 is a structural diagram of a spring 431 provided in an embodiment of the present application, and Figure 22 is a stereoscopic diagram of Figure 21. Alternatively, the cross-section of the coil of the spring 431 can also be square. Please refer to Figures 23 and 24. Figure 23 is a structural diagram of another spring 431 provided in an embodiment of the present application, and Figure 24 is a stereoscopic diagram of Figure 23. Alternatively, the cross-section of the coil of the spring can also be a regular polygon or other shapes. Therefore, the embodiments of the present application do not specifically limit this.

[0131] In other embodiments, the elastic member 430 may also be a special-shaped spring having an irregular structure, such as a variable diameter coil spring, a wave spring, or a leaf spring 432 .

[0132] For example, please refer to Figures 25 and 26. Figure 25 is a structural diagram of a leaf spring 432 provided in an embodiment of the present application, and Figure 26 is a structural diagram of another rotating shaft mechanism 23 provided in an embodiment of the present application (the elastic member 430 is the leaf spring 432 provided in Figure 25). The above-mentioned special-shaped spring is a leaf spring 432, and the plane on which the surface of the leaf spring 432 lies is parallel to the sliding direction and rotation axis of the swing arm 300, that is, the surface of the leaf spring 432 is parallel to the XY plane. The leaf spring 432 is provided with a plurality of hollow structures 432a, and at least portions of the plurality of hollow structures 432a are distributed in a direction parallel to the rotation axis of the swing arm 300, that is, the plurality of hollow structures 432a are distributed along the Y-axis.

[0133] In this way, because the multiple hollow structures 432a are distributed along the Y-axis, the leaf spring 432 can be compressed along the Y-axis. Furthermore, because the leaf spring 432 is arranged in a direction parallel to the XY plane and is compressed along the Y-axis by the multiple hollow structures 432a, the elastic force generated by the leaf spring 432 can be controlled by controlling the size of the hollow structures 432a. Therefore, the size of the leaf spring 432 along the Z-axis can be reduced, that is, the thickness of the leaf spring 432 can be reduced, thereby further facilitating a thinner terminal.

[0134] Continuing with Figures 25 and 26, the leaf spring 432 bends and extends in a substantially "S" shape within the XY plane, thereby forming a plurality of hollow structures 432a extending along the X-axis and distributed along the Y-axis. When the leaf spring 432 is compressed, the gaps in the hollow structures 432a decrease, allowing the leaf spring 432 to generate an elastic force.

[0135] Please refer to Figure 27, which is a structural diagram of another leaf spring 432 provided in an embodiment of the present application. The leaf spring 432 is similar to the structure shown in Figure 25, except that the gap of the hollow structure 432a gradually changes along the X-axis direction. Its function is the same as above, so it will not be described again.

[0136] Please refer to Figure 28, which is a structural diagram of another leaf spring 432 provided in an embodiment of the present application. The leaf spring 432 may include multiple sub-regions 432b, each of which has a hollow structure 432a extending along the X-axis. Two adjacent sub-regions 432b are fixedly connected to form an integral structure, and the connection point is located at the midpoint of the sub-region 432b along the X-axis. When the leaf spring 432 is compressed along the Y-axis, the hollow structures 432a move closer together, and the ends (ends along the X-axis) of the two adjacent sub-regions 432b move apart. This means that the leaf spring 432 undergoes elastic deformation, thereby generating an elastic force.

[0137] Please refer to Figure 29, which shows the structure of another leaf spring 432 provided in an embodiment of the present application. This leaf spring 432 is similar to the structure shown in Figure 28, except that the hollow structures 432a of two adjacent sub-regions 432b are interconnected at the connection point. This allows the leaf spring 432 to undergo significant elastic deformation and generate a greater elastic force when compressed along the Y-axis.

[0138] Please refer to Figure 30, which is a structural diagram of another leaf spring 432 provided in an embodiment of the present application. The leaf spring 432 is similar to the structure shown in the figure, except that the two ends of each sub-area 432b form an approximately right-angle structure. Its function is the same as above, so it will not be described again.

[0139] Please refer to Figure 31, which shows the structure of another leaf spring 432 provided in an embodiment of the present application. This leaf spring 432 is similar to the structure shown in Figure 28, except that the gap in the hollow structure 432a decreases from the center toward the ends along the X-axis. This allows the gap in the hollow structure 432a to be larger when the leaf spring 432 is compressed along the Y-axis, allowing the leaf spring 432 to undergo greater elastic deformation, thereby generating a greater elastic force.

[0140] Please refer to Figure 32, which shows the structure of another leaf spring 432 provided in an embodiment of the present application. This leaf spring 432 is similar to the structure shown in Figure 31, except that the hollow structures 432a of two adjacent sub-regions 432b are interconnected at the connection point. This allows the leaf spring 432 to undergo greater elastic deformation and, therefore, generate greater elastic force when compressed along the Y-axis.

[0141] Please refer to Figure 33, which is a structural diagram of another leaf spring 432 provided in an embodiment of the present application. The leaf spring 432 may include abutment portions 432c at both ends and a plurality of first elastic portions 432d and a plurality of second elastic portions 432e located between the two abutment portions 432c. The vertical projections of the first elastic portions 432d and the second elastic portions 432e in the XY plane are both arc-shaped structures, and the two are arranged in a square symmetry along the Y axis. The hollow structure 432a is located between the first elastic portion 432d and the second elastic portion 432e, between adjacent first elastic portions 432d, and between adjacent second elastic portions 432e. When the leaf spring 432 is compressed along the Y axis, the two abutment portions 432c move closer together, and the intermediate regions of the first elastic portion 432d and the second elastic portion 432e move away from each other. In other words, the first elastic portion 432d and the second elastic portion 432e are further bent, elastically deformed, and thus capable of generating an elastic force.

[0142] Please refer to Figure 34, which is a structural diagram of another leaf spring 432 provided in an embodiment of the present application. This leaf spring 432 spirally extends outward from its midpoint in the XY plane to form a helical structure. This leaf spring 432 can be fixed at its midpoint to the swing arm 300. Thus, when the leaf spring 432 is compressed along the Y-axis, the helical gaps (i.e., the hollow structure 432a) distributed along the Y-axis decrease, causing elastic deformation, thereby generating an elastic force.

[0143] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0144] The above description is merely a specific embodiment of the present application, but the scope of protection of the present 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 rotating shaft mechanism, characterized in that: include: Middle beam; A door panel, wherein the door panel is rotatable relative to the center beam; A swing arm is arranged between the middle beam and the door panel, wherein a first end of the swing arm is rotatably connected to the middle beam, and a second end of the swing arm is slidably connected to the door panel; when the swing arm drives the door panel to rotate relative to the middle beam, the swing arm and the door panel slide relative to each other; A damping assembly is arranged between the door panel and the swing arm, and includes a cam structure, a sliding member and an elastic member. During relative sliding of the door panel and the swing arm, the cam structure can push the sliding member to slide along the rotation axis of the swing arm to compress the elastic member and generate a damping force.

2. The rotating shaft mechanism according to claim 1, characterized in that: The sliding member is slidably arranged on the swing arm, a sliding direction of the sliding member relative to the swing arm is parallel to a rotation axis of the swing arm, and the cam structure is arranged between the door panel and the sliding member.

3. The rotating shaft mechanism according to claim 2, characterized in that: The cam structure includes a boss and a roller, one of the boss and the roller is arranged on the door panel, and the other of the boss and the roller is arranged on the sliding member; during the relative sliding of the swing arm and the door panel, the boss and the roller abut against each other and move relative to each other in a direction parallel to the rotation axis of the swing arm, so that the sliding member slides in a direction parallel to the rotation axis of the swing arm.

4. The rotating shaft mechanism according to claim 3, characterized in that: The roller is rotatably connected to the sliding member or the door panel, the rotation axis of the roller is perpendicular to the sliding direction of the sliding member, and the rotation axis of the roller is perpendicular to the sliding direction of the swing arm.

5. The rotating shaft mechanism according to claim 3, characterized in that: Both side walls of the boss distributed along the sliding direction of the swing arm form guiding slopes. During the relative sliding of the door panel and the swing arm, the roller slides along the guiding slopes to make the sliding member slide in a direction parallel to the rotation axis of the swing arm.

6. The rotating shaft mechanism according to any one of claims 1 to 5, characterized in that: The swing arm is provided with a receiving groove, the sliding member and the elastic member are both provided in the receiving groove, and the sliding member and the elastic member are distributed along a direction parallel to the rotation axis of the swing arm.

7. The rotating shaft mechanism according to claim 6, characterized in that: There are two sliding members, and the elastic member is arranged between the two sliding members. The cam structure is arranged between each sliding member and the door panel. During the relative sliding of the swing arm and the door panel, the movement directions of the two sliding members are opposite.

8. The rotating shaft mechanism according to claim 6, characterized in that: The rotating shaft mechanism also includes a cover plate, which is arranged on the swing arm, and the sliding member and the elastic member are both arranged between the bottom surface of the accommodating groove and the cover plate.

9. The rotating shaft mechanism according to claim 6, characterized in that: A notch is formed on the side wall of the accommodating groove, and the sliding member contacts the cam structure through the notch.

10. The rotating shaft mechanism according to any one of claims 1 to 9, characterized in that: The elastic member is a spring, and the axis of the spring is parallel to the rotation axis of the swing arm.

11. The rotating shaft mechanism according to claim 10, characterized in that: A plurality of springs are provided, and the plurality of springs are distributed along the sliding direction of the swing arm, and the axes of the plurality of springs are parallel to each other.

12. The rotating shaft mechanism according to claim 10 or 11, characterized in that: The damping assembly further comprises a limiting shaft, the spring is sleeved on the limiting shaft, and the limiting shaft is fixed relative to the sliding member.

13. The rotating shaft mechanism according to any one of claims 1 to 9, characterized in that: The elastic member is a special-shaped spring, and the compression direction of the special-shaped spring is parallel to the rotation axis of the swing arm.

14. The rotating shaft mechanism according to claim 13, characterized in that: The special-shaped spring includes a leaf spring, the plane where the surface of the leaf spring is located is parallel to the rotation axis and sliding direction of the swing arm, and a plurality of hollow structures are opened on the leaf spring, and at least part of the areas of the plurality of hollow structures are distributed along a direction parallel to the rotation axis of the swing arm.

15. The rotating shaft mechanism according to any one of claims 1 to 14, characterized in that: A sliding groove is provided on the door panel, the second end of the swing arm extends into the sliding groove, and the cam structure is arranged between the side wall of the sliding groove and the sliding member.

16. The rotating shaft mechanism according to claim 15, characterized in that: The door panel comprises a panel body and a connecting block, the panel body is connected to the connecting block, and the sliding groove is arranged on the connecting block.

17. A supporting device, characterized in that: It comprises a first shell, a second shell and the pivot mechanism according to any one of claims 1 to 16, door panels are provided on both sides of the center beam of the pivot mechanism, and the first shell and the second shell are fixedly connected to the door panels on both sides of the center beam respectively.

18. A folding screen terminal, characterized in that: A folding screen, comprising a first part, a second part and a third part, wherein the third part is located between the first part and the second part; The supporting device is the supporting device according to claim 17, wherein the first part is fixed to the first shell, the second part is fixed to the second shell, and the third part is arranged on the rotating shaft mechanism.

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