Rotating shaft mechanism, supporting device and folding screen terminal

Abstract

The invention provides a rotating shaft mechanism, a supporting device and a folding screen terminal, and relates to the technical field of electronic equipment. The problems that a rotating shaft mechanism of a folding screen terminal is small in arrangement space, insufficient in damping force generated by the rotating shaft mechanism and poor in rotating hand feeling are solved. The rotating shaft mechanism comprises a middle beam, a door plate, a swing arm, a damping assembly and an elastic piece. The door plate can rotate relative to the middle beam. The swing arm is arranged between the door plate and the middle beam, the first end of the swing arm is rotationally connected with the middle beam, and the second end of the swing arm is slidably connected with the door plate. When the swing arm drives the door plate to rotate relative to the middle beam, the swing arm and the door plate slide relatively. The damping assembly is arranged between the swing arm and the door plate and comprises a cam structure, a sliding piece and an elastic piece. In the relative sliding process of the door plate and the swing arm, the cam structure can push the sliding piece to slide along the rotating axis of the swing arm so as to compress the elastic piece and generate damping force.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a hinge mechanism, a supporting device and a folding screen terminal. Background Art

[0002] 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 in size and inconvenient to carry, and bar-type mobile phones having small screens, foldable-screen terminals have come into being.

[0003] Folding screen terminals can realize large screen display when unfolded, and can reduce volume and be easy to carry when folded. Therefore, they are favored by more and more users.

[0004] However, with the development trend of terminal devices becoming lighter and thinner, the setting space of the hinge mechanism of foldable screen terminals has been continuously reduced, resulting in insufficient damping force generated by the hinge mechanism, reduced rotation feel, and affecting user experience. Summary of the invention

[0005] The embodiments of the present application provide a hinge mechanism, a supporting device and a folding screen terminal, which are used to solve the problem that the setting space of the hinge mechanism of the folding screen terminal is reduced, resulting in insufficient damping force generated by the hinge mechanism, reduced rotation feel, and affecting user experience.

[0006] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0007] In a first aspect, a rotating shaft 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 slidably 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.

[0008] The pivot mechanism provided in the first aspect of the present application sets the damping component between the door panel and the swing arm, so that no elastic force is applied to the middle beam, thereby avoiding deformation of the middle beam, which is beneficial to ensuring the flatness of the middle beam. In addition, during the relative sliding of the door panel and the swing arm, the cam structure pushes the sliding member to slide, and the sliding member can compress the elastic member in a direction parallel to the rotation axis of the swing arm to generate a damping force. That is, the elastic member can be set in a direction parallel to the rotation axis of the swing arm, so that the length of the elastic member can be guaranteed, so that the elastic member can generate sufficient elastic force (i.e., damping force), thereby ensuring the rotation feel of the terminal device, which is beneficial to improving the user experience.

[0009] In a possible implementation of the first aspect of the present application, the sliding member is slidably disposed on the swing arm, the sliding direction of the sliding member relative to the swing arm is parallel to the rotation axis of the swing arm, and the cam structure is disposed between the door panel and the sliding member. Under this structure, the elastic member can be compressed during the sliding process of the sliding member relative to the swing arm, so that sufficient damping force can be generated during the rotation process of the swing arm and the door panel relative to the center beam.

[0010] In a possible implementation of the first aspect of the present application, 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. In this way, by the roller abutting against the boss and rolling along the surface of the boss, the boss can apply a component force parallel to the rotation axis of the swing arm to the roller, so that the sliding member can slide in this direction to compress the elastic member.

[0011] In a possible implementation of the first aspect of the present application, the roller is rotatably connected to the sliding member or the door panel, and 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. Under this structure, the roller can roll along the surface of the boss to reduce friction, which is beneficial to reducing wear between the roller and the boss and can reduce attenuation of the damping force.

[0012] 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, so as to realize the rotation connection of the roller to the sliding member.

[0013] In a possible implementation of the first aspect of the present application, both side walls on the boss distributed along the sliding direction of the swing arm form guide slopes, and during the relative sliding of the door panel and the swing arm, the roller slides along the guide slopes to make the sliding member slide in a direction parallel to the rotation axis of the swing arm.

[0014] In a possible implementation of the first aspect of the present application, a receiving groove is provided on the swing arm, 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. Under this result, it is helpful to reduce the thickness of the rotating shaft mechanism, thereby facilitating the thinning of the folding screen terminal.

[0015] In a possible implementation of the first aspect of the present application, two sliding members are provided, and the elastic member is provided between the two sliding members, and a cam structure is provided between each sliding member and the door panel; during the relative sliding of the swing arm and the door panel, the two sliding members move in opposite directions. In this way, the two sliding members can both compress the elastic member, which is conducive to further improving the damping force.

[0016] In a possible implementation of the first aspect of the present application, the shaft mechanism further includes a cover plate, which is disposed on the swing arm, and the sliding member and the elastic member are both disposed between the bottom surface of the receiving groove and the cover plate. In this structure, the cover plate can effectively protect the elastic member and the sliding member, and effectively limit the position, which is conducive to improving the reliability of the overall structure.

[0017] In a possible implementation of the first aspect of the present application, a notch is provided on the side wall of the receiving groove, and the sliding member contacts the cam structure through the notch. Under this structure, the boss and the roller can abut against each other at the notch, which is conducive to further reducing the thickness.

[0018] In a possible implementation of the first aspect of the present application, the elastic member is a spring, and the axis of the spring is parallel to the rotation axis of the swing arm. Exemplarily, the spring is a conventional spring, and the cross section of its helical line can be circular, square, polygonal or other shapes.

[0019] In a possible implementation of the first aspect of the present application, a plurality of springs are provided, 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. Under this structure, the required damping force can be adjusted by controlling the number of springs.

[0020] In a possible implementation of the first aspect of the present application, the damping assembly further includes a limiting shaft, the spring is sleeved on the limiting shaft, and the limiting shaft is fixed relative to the sliding member. In this structure, the limiting shaft can limit the compression direction of the spring to reduce the risk of bending when the spring is compressed, which is conducive to improving the reliability of the overall structure.

[0021] In a possible implementation of the first aspect of the present application, 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. In this way, special-shaped springs of different structures or shapes can be selected according to actual design requirements, which is conducive to increasing the selectable range of the elastic member.

[0022] In a possible implementation of the first aspect of the present application, 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 provided on the leaf spring, and at least part of the region of the plurality of hollow structures is distributed along a direction parallel to the rotation axis of the swing arm. In this way, the elastic force of the leaf spring can be adjusted according to the spacing of the hollow structures, and therefore, the thickness of the leaf spring has little effect on its own elastic force, that is, the thickness of the leaf spring can be reduced, which is more conducive to the thinning of the folding leaf terminal.

[0023] In a possible implementation of the first aspect of the present application, 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. Under this structure, it is possible to avoid the formation of a protruding structure on the surface of the door panel, thereby being more conducive to ensuring the thinness of the terminal device.

[0024] In a possible implementation of the first aspect of the present application, the door panel includes a panel body and a connecting block, the panel body is connected to the connecting block, and the slide groove is provided on the connecting block. Under this structure, the panel body can be used to be fixedly connected to a structural member such as a housing by connecting the connecting block to the swing arm. On the one hand, the supporting strength between the swing arm and the door panel can be ensured by the connecting block, and on the other hand, it is helpful to reduce the overall weight of the door panel.

[0025] In a second aspect, a supporting device is provided, which includes a first shell, a second shell and a pivot mechanism as described in any of the above technical solutions, 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.

[0026] The supporting device provided in the second aspect of the present application, because 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.

[0027] In a third aspect, a folding screen terminal is provided, which includes a folding screen and a supporting device. The folding screen includes a first part, a second part, and a third part, and the third part is located between the first part and the second part. The supporting device is the supporting device described in the above technical solution, the first part of the folding screen is fixed to the first shell, the second part of the folding screen is fixed to the second shell, and the third part of the folding screen is arranged on the rotating shaft mechanism.

[0028] 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

[0029] Figure 1A structural diagram of a foldable screen terminal provided in an embodiment of the present application;

[0030] Figure 2 A front view of a foldable screen terminal provided in an embodiment of the present application;

[0031] Figure 3 A front view of a foldable screen terminal (in a folded state) provided in an embodiment of the present application;

[0032] Figure 4 A structural diagram of a rotating shaft mechanism provided for related technologies;

[0033] Figure 5 for Figure 4 AA section view;

[0034] Figure 6 A structural diagram of a rotating shaft mechanism provided in an embodiment of the present application;

[0035] Figure 7 An exploded view of a door panel provided in an embodiment of the present application;

[0036] Figure 8 for Figure 6 An exploded view of the shaft mechanism is provided;

[0037] Fig. 9 for Figure 6 An assembly drawing of the shaft mechanism provided;

[0038] Fig.10 A structural diagram of another rotating shaft mechanism provided in an embodiment of the present application;

[0039] Fig.11 A structural diagram of another rotating shaft mechanism provided in an embodiment of the present application;

[0040] Fig.12 An exploded view of the roller and the sliding member provided in the embodiment of the present application;

[0041] Fig.13 for Fig. 9 A magnified view of the structure of region B;

[0042] Fig.14 A structural diagram of a rotating shaft mechanism provided in an embodiment of the present application in an unfolded position;

[0043] Fig.15 A structural diagram of a rotating shaft mechanism provided in an embodiment of the present application between an unfolded position and a folded position;

[0044] Fig.16 for Fig.15 The three-dimensional structure diagram;

[0045] Fig.17A structural diagram of a rotating shaft mechanism provided in an embodiment of the present application in a folded position;

[0046] Fig.18 for Fig.17 The three-dimensional structure diagram;

[0047] Fig.19 A structural diagram of another rotating shaft mechanism provided in an embodiment of the present application;

[0048] Fig. 20 for Fig.19 An exploded view of the shaft mechanism is provided;

[0049] Fig.21 A structural diagram of a spring provided in an embodiment of the present application;

[0050] Fig. 22 for Fig.21 Stereoscopic image of

[0051] Fig.23 A structural diagram of another spring provided in an embodiment of the present application;

[0052] Fig.24 for Fig.23 Stereoscopic image of

[0053] Fig.25 A structural diagram of a leaf spring provided in an embodiment of the present application;

[0054] Fig.26 Another rotating shaft mechanism (elastic member is) provided in the embodiment of the present application Fig.25 Structural diagram of the leaf spring provided;

[0055] Fig. 27 A structural diagram of another leaf spring provided in an embodiment of the present application;

[0056] Fig.28 A structural diagram of another leaf spring provided in an embodiment of the present application;

[0057] Fig.29 A structural diagram of another leaf spring provided in an embodiment of the present application;

[0058] Fig.30 A structural diagram of another leaf spring provided in an embodiment of the present application;

[0059] Fig.31 A structural diagram of another leaf spring provided in an embodiment of the present application;

[0060] Fig.32 A structural diagram of another leaf spring provided in an embodiment of the present application;

[0061] Fig.33A structural diagram of another leaf spring provided in an embodiment of the present application;

[0062] Fig.34 A structural diagram of another leaf spring provided in an embodiment of the present application.

[0063] 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-middle 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 Bracket; 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-area; 432c-abutment part; 432d-first elastic part; 432e-second elastic part; 440-rotating shaft; 450-limiting shaft; 500-cover plate. DETAILED DESCRIPTION

[0064] 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 of the embodiments.

[0065] In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features.

[0066] In addition, in the present 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 the changes in the orientation of the components in the drawings.

[0067] In the present 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.

[0068] The embodiment of the present application provides a folding screen terminal. The folding screen terminal may be a type of electronic device with a folding screen, for example, a folding screen mobile phone. The folding screen mobile phone may be a mobile phone with an external folding display screen, or a mobile phone with an internal folding display screen. For the convenience of explanation, the following examples are all taken as an example of a mobile phone with an external folding display screen as an example.

[0069] Specifically, see Figure 1 and Figure 2 , Figure 1 This is a structural diagram of the folding screen terminal 01 provided in an embodiment of the present application. Figure 2 This 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.

[0070] For the convenience of the following description, an XYZ coordinate system is established, and the width direction of the folding screen terminal 01 is defined as the X-axis direction, the length direction of the folding screen terminal 01 is defined as the Y-axis direction, and the thickness direction of the folding screen terminal 01 is defined as the Z-axis direction. It is understandable that the coordinate system of the electronic device can be flexibly set according to actual needs, and this application only gives an example, which cannot be considered as a special limitation of this application.

[0071] Understandably, Figure 1 and Figure 2 Only some components of the electronic device are schematically shown, and the actual shapes, sizes, positions and structures of these components are not subject to Figure 1 and Figure 2 restrictions.

[0072] 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 opposite to 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 limitation to this.

[0073] 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 light-emitting diode (mini organic light-emitting diode) display screen, a micro light-emitting diode (micro organic light-emitting diode) display screen, a micro organic light-emitting diode (micro organic light-emitting diode) display screen, a quantum dot light-emitting diode (QLED) display screen, a liquid crystal display (LCD), etc.

[0074] The above-mentioned support device 20 is used to support the folding screen 10. The support 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.

[0075] When the folding screen terminal 01 is in the unfolded state, the first laminating surface 21a, the second laminating surface 22a and the third laminating surface 23a are in the same plane, so that the folding screen 10 is fully unfolded and the flatness of the folding screen 10 can be ensured. In this state, a large-screen display can be achieved, which can bring a better user experience. For example, when a user uses the folding screen terminal 01 to watch a movie, the folding screen terminal 01 can be unfolded and watched on a large screen, thereby obtaining a better viewing experience.

[0076] When the folding screen terminal 01 is in the folded state, please refer to Figure 3 , Figure 3This is a front 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 images, that is, the user can use the small screen display to achieve one-handed operation. For example, when a 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, so as to perform one-handed operation, which is conducive to further improving the user experience.

[0077] In this way, different usage states of the folding screen terminal 01 can be suitable for different application scenarios, and users can freely choose the usage state of the folding screen terminal 01 according to the specific application scenario, which is conducive to enabling users to obtain a better usage experience.

[0078] The above-mentioned hinge mechanism 23 is used to drive the first shell 21 and the second shell 22 to rotate between the unfolded position and the folded position, so that the folding screen terminal 01 can rotate between the unfolded state and the folded state. Figure 4 and Figure 5 , Figure 4 The structural diagram of the rotating shaft mechanism 23 provided by the related art, Figure 5 for Figure 4 AA cross-section diagram.

[0079] The rotating shaft mechanism 23 includes a center beam 100, a door panel 200, and a swing arm 300. The door panels 200 are arranged on both sides of the center beam 100 along its length direction (i.e., the Y-axis direction mentioned above), and a swing arm 300 is arranged between the door panel 200 and the center beam 100. The first end of the swing arm 300 is rotatably connected to the center beam 100, and the second end of the swing arm 300 is slidably connected to the door panel 200. In some embodiments, when a plurality of swing arms 300 are arranged between the door panel 200 and the center beam 100, the plurality of swing arms 300 are spaced apart and distributed along the length direction of the center beam 100.

[0080] When the swing arm 300 drives the door panel 200 to rotate relative to the center beam 100, the swing arm 300 and the door panel 200 can slide relative to each other, and the rotation axis (i.e., the Y-axis direction) of the swing arm 300 and the sliding direction (i.e., the X-axis direction) of the swing arm 300 are perpendicular to each other. Figure 1 and Figure 2 The first shell 21 and the second shell 22 are respectively located on both sides of the center beam 100 and are fixedly connected to the adjacent door panel 200, so that the first shell 21 and the second shell 22 are driven to rotate between the unfolded position and the folded position through the door panel 200.

[0081] In addition, in order to improve the hand feel of the folding screen terminal 01 during the rotation process, a damping component 400 may be further provided in the rotating shaft mechanism 23 , and the damping component 400 is provided between the swing arm 300 and the door panel 200 .

[0082] For details, please continue to see Figure 4 and Figure 5 The damping assembly 400 may include a cam portion 401 formed at an edge region (edge ​​region extending along the Y-axis direction) of the center beam 100, 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 can rotate synchronously with the swing arm 300, and the rolling portion 403 can abut against the cam portion 401.

[0083] In the process of 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. In the process of rolling 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 squeeze the elastic element 404.

[0084] 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, so that the support frame 402 slides relative to the swing arm 300 and compresses the elastic element 404 to generate an elastic force. Therefore, the elastic element 404 applies a reaction force to the support frame 402, so that a damping force is formed 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, resulting in damage to the device.

[0085] 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.

[0086] Since the 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 lead to a decrease in the damping force that the elastic member 430 can provide. Therefore, it is difficult for the folding screen terminal 01 to achieve a good rotation feel during the rotation process. In addition, under 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 poor flatness and affecting the user experience.

[0087] To solve the above problem, the present application embodiment provides another hinge mechanism 23, which can be used on the above folding screen terminal 01. Figure 6 and Figure 7 , Figure 6 This is a structural diagram of a rotating shaft mechanism 23 provided in an embodiment of the present application. Figure 7 An exploded view of a door panel 200 provided in an embodiment of the present application.

[0088] Specifically, the rotating shaft mechanism 23 may include the above-mentioned center beam 100, door panel 200, swing arm 300 and damping assembly 400. Door panels 200 are provided on both sides of the center beam 100 along the length direction, and the door panels 200 on both sides of the center beam 100 are fixedly connected to the first shell 21 and the second shell 22 respectively. The swing arm 300 is provided between the center beam 100 and the door panel 200, and the first end of the swing arm 300 is rotatably connected to the center beam 100, and the second end of the swing arm 300 is slidably connected to the door panel 200, and the rotation axis (i.e., the Y-axis direction) of the swing arm 300 and the sliding direction (i.e., the X-axis direction) of the swing arm 300 are perpendicular to each other.

[0089] The door panel 200 may be provided with a slide groove 221 extending along the X-axis direction, and 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. Figure 7 The above-mentioned door panel 200 may include a panel body 210 and a connecting block 220. The panel body 210 is used to be fixedly connected with the above-mentioned first shell 21 and the second shell 22. The connecting block 220 is connected to the panel body 210. The swing arm 300 is slidingly connected to the connecting block 220, that is, the slide groove 221 may be opened on the connecting block 220. When the swing arm 300 rotates, it can drive the connecting block 220 and the panel body 210 to rotate.

[0090] It should be noted that the above-mentioned slide groove 221 extends along the X-axis direction, which means that when the folding screen terminal 01 is in the unfolded state or the folded state, that is, the hinge mechanism 23 is in the unfolded position or the folded position, the slide groove 221 extends along the width direction of the folding 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 slide groove 221 forms an angle with the X-axis direction and is perpendicular to the Y-axis direction.

[0091] Furthermore, the connection between the plate body 210 and the connecting block 220 can be a fixed connection, that is, the plate body 210 and the connecting block 220 move synchronously. It can also be a movable connection, that is, the plate body 210 and the connecting block 220 can move relative to each other. Therefore, this application does not make any special restrictions on this.

[0092] Therefore, in the following embodiments, the swing arm 300 and the connecting block 220 are slidably connected to each other as an example for description, and only the connecting block 220 is shown in the subsequent drawings. Figure 8 and Fig. 9 , Figure 8 for Figure 6 An exploded view of the rotating shaft mechanism 23 is provided, Fig. 9 for Figure 6 An assembly diagram of the rotating shaft mechanism 23 is provided.

[0093] The damping assembly 400 may include a cam structure 410, a sliding member 420 and an elastic member 430. When the connecting block 220 of the door panel 200 slides relative to the swing arm 300, the cam structure 410 can push the sliding member 420 to slide and compress the elastic member 430 to generate a damping force, and the compression direction of the elastic member 430 is parallel to the rotation axis of the swing arm 300, that is, the elastic member 430 is compressed along the Y-axis direction.

[0094] 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, that is, in the Y-axis direction. Therefore, the installation space of 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 folding screen terminal 01, he can have a good rotation feel.

[0095] In addition, the damping assembly 400 is arranged between the connecting block 220 of the door panel 200 and the swing arm 300, that is, the force generated by the damping assembly 400 is applied to the connecting block 220 and the swing arm 300, thereby effectively preventing the center beam 100 from being deformed due to the force, which is beneficial to ensuring the integrity of the center beam 100 and extending the service life of the center beam 100.

[0096] In some embodiments, please refer to Figure 8 and Fig. 9 The sliding member 420 may be a slider, and the sliding member 420 may 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, and 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, so that the sliding member 420 can compress the elastic member 430 along the Y-axis direction.

[0097] Exemplarily, a receiving groove 310 may be opened on the swing arm 300, and the receiving groove 310 may 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).

[0098] 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 arranged between each sliding member 420 and the connecting block 220. In the process of relative sliding of the swing arm 300 and the door panel 200, the movement directions of the two sliding members 420 are opposite.

[0099] 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 direction can slide in the direction of approaching or moving away from each other. For example, when the folding 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 in the direction of approaching each other, thereby compressing the elastic member 430. When the folding 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 under the elastic force of the elastic member 430, the two sliding members 420 slide in the direction of moving away from each other.

[0100] 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.

[0101] In other embodiments, see Fig.10 , Fig.10This is a structural diagram of another rotating shaft mechanism 23 provided in an embodiment of the present application. The above-mentioned sliding member 420 may also be provided with only one, the sliding member 420 and the elastic member 430 are both provided at the first end of the receiving groove 310 along the Y-axis direction, and the elastic member 430 may abut between the sliding member 420 and the side wall of the second end of the receiving groove 310 along the Y-axis direction, so that the sliding member 420 can slide along the Y-axis direction and compress the elastic member 430.

[0102] On this basis, please continue to refer to Fig.10 The cam structure 410 may include a boss 411 and a roller 412, one of which may be disposed on the connection block 220 of the door panel 200, and the other of which may be disposed on the sliding member 420. For example, the boss 411 may be disposed on the side wall of the slide groove 221 of the connection block 220, and the roller 412 may be disposed on the sliding member 420. When the swing arm 300 and the connection block 220 slide relative to each other, the roller 412 abuts against the boss 411, and the boss 411 enables the roller 412 and the sliding member 420 to slide along the Y-axis direction, so that the cam structure 410 and the sliding member 420 are distributed along the Y-axis direction. At this time, the elastic member 430 is compressed.

[0103] Or, for some other possible examples, see Fig.11 , Fig.11 This is a structural diagram of another rotating shaft mechanism 23 provided in an embodiment of the present application. The boss 411 may also be provided on the sliding member 420, and the roller 412 may also be provided on the side wall of the slide groove 221 of the connecting block 220. Furthermore, in the case where two sliding members 420 are provided, the two rollers 412 may be provided on the corresponding sliding member 420, and the two bosses 411 may be provided on the two side walls of the slide groove 221 (such as Fig. 9 Alternatively, the two bosses 411 may be disposed on the corresponding sliding member 420, and the two rollers 412 may be disposed on the two side walls of the sliding groove 221 (as shown in FIG. Fig.11 shown).

[0104] Alternatively, the roller 412 of a 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.

[0105] It is understandable that the roller 412 and the boss 411 of the cam structure 410 are not arranged at unique positions, and their arrangement positions can be determined according to actual needs. Therefore, the present application does not make any special limitation on this.

[0106] In addition, the roller 412 can be rotatably connected to the sliding member 420 or the connecting block 220, and 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 set along the Z-axis direction. For example, refer to Fig.12 , Fig.12 The exploded view of the roller 412 and the sliding member 420 provided in the embodiment of the present application, when the roller 412 is arranged on the sliding member 420, a rotating shaft 440 can be fixedly arranged on the sliding member 420, and the rotating shaft 440 is arranged along the Z-axis direction, 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 against the above-mentioned boss 411, the roller 412 can roll along the surface of the boss 411, which is conducive to reducing friction, so that the terminal can rotate more easily.

[0107] Based on this, when the roller 412 contacts the boss 411, they can separate along the Y-axis direction. Fig.13 , Fig.13 for Fig. 9 In the enlarged view of the structure of area B, both side walls of the boss 411 distributed along the sliding direction of the swing arm 300 form guide slopes 411a, that is, both side walls of the boss 411 distributed along the X-axis direction form guide slopes 411a. In addition, both guide slopes 411a extend in a direction away from the side wall of the slide groove 221, and both guide slopes 411a extend in a direction close to each other. That is, in the XY plane, the width of the end of the boss 411 close to the side wall of the slide groove 221 is the first width D1, and the width of the end of the boss 411 away from the side wall of the slide groove 221 is the second width D2, and the first width D1 is greater than the second width D2.

[0108] For example, taking the process of the folding screen terminal 01 rotating from the unfolded state to the folded state as an example, refer to Fig.14 , Fig.14 The structural diagram of the rotating shaft mechanism 23 provided in the embodiment of the present application is in the unfolded position. The two guiding inclined surfaces 411a on the boss 411 are respectively the first guiding inclined surface 411b and the second guiding inclined surface 411c, and the side wall of the boss 411 away from the side wall of the slide groove 221 is the supporting surface 411d, that is, the two side edges of the supporting surface 411d distributed along the X-axis are respectively connected to the first guiding inclined surface 411b and the second guiding inclined surface 411c.

[0109] Initially, the folding screen terminal 01 is in an unfolded state (eg Figure 1 and Figure 2 As shown), namely the swing arm 300 and the connecting block 220 (ie, the door panel 200, Fig.14 (not shown) is in the unfolded position relative to the middle beam 100, please continue to refer to Fig.14 Combined with Figure 6 As shown, at this time, the roller 412 is located on the side close to the first guide inclined surface 411b.

[0110] 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 (such as Fig.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 inclined surface 411b of the boss 411.

[0111] 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 in a direction parallel to the Y-axis toward each other, thereby compressing the elastic member 430.

[0112] Next, the roller 412 rolls along the first guide slope 411b. When the roller 412 separates from the first guide slope 411b and contacts the support surface 411d, the elastic force generated by the elastic member 430 is the largest, that is, the damping force is the largest at this time. Fig.15 and Fig.16 , Fig.15 This is a structural diagram of the rotating shaft mechanism 23 provided in the embodiment of the present application in the unfolded position and the folded position. Fig.16 for Fig.15 Three-dimensional structure diagram.

[0113] Next, the folding screen terminal 01 continues to rotate, and the swing arm 300 continues to slide relative to the connecting block 220 (i.e., along the Fig.15 When the roller 412 rolls to the position where it contacts the second guide inclined surface 411c, that is, the roller 412 is separated from the support surface 411d, at this time, the squeezing force of the boss 411 on the roller 412 and the sliding member 420 disappears, the elastic force of the elastic member 430 is released, and the elastic member 430 pushes the two sliding members 420 to move away from each other in a direction parallel to the Y axis, and the roller 412 rolls along the second guide inclined surface 411c.

[0114] Finally, see Fig.17 and Fig.18 , Fig.17 This is a structural diagram of the rotating shaft mechanism 23 provided in the embodiment of the present application in a folded position. Fig.18 for Fig.17 The roller 412 is located on the side close to the second guide slope 411c. At this time, the swing arm 300 and the connecting block 220 (ie, the door panel 200) rotate to the folded position relative to the middle beam 100, that is, the terminal rotates to the folded state.

[0115] 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.

[0116] It should be noted that when the folding screen terminal 01 is in the unfolded state or the folded state, the elastic member 430 is also in a compressed state. When the folding screen terminal 01 is in the unfolded state or the folded state, the compression amount of the elastic member 430 is the first compression amount, and when the folding screen terminal 01 is between the unfolded state and the folded state, the compression amount of the elastic member is the second compression amount, and the first compression amount is less than the second compression amount. This can reduce the risk of relative movement between the various components when the folding screen terminal 01 is in the unfolded state or the folded state, which is conducive to improving the reliability of the overall structure.

[0117] 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 assembly 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.

[0118] On this basis, see Fig.19 and Fig. 20 , Fig.19 This is a structural diagram of another rotating shaft mechanism 23 provided in an embodiment of the present application. Fig. 20 for Fig.19 An exploded view of the shaft mechanism 23 is provided. In the shaft mechanism 23, a notch 320 may 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 may 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 slide groove 221, the roller 412 may be provided at the notch 320 so that the roller 412 and the boss 411 can abut against each other.

[0119] In this way, the roller 412 and the boss 411 are abutted against each other through the notch 320 at the side wall of the receiving groove 310 to prevent the roller 412 set on the sliding member 420 from extending out of the receiving 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.

[0120] Also, please continue to read Fig.19 and Fig. 20The above-mentioned rotating shaft mechanism 23 may further include a cover plate 500, which is disposed on the swing arm 300, and 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. That is, a cavity can be formed between the cover plate 500 and the receiving groove 310, and the sliding member 420 and the elastic member 430 are both disposed in the cavity, so that the sliding member 420 and the elastic member 430 can be effectively protected.

[0121] Furthermore, the cover plate 500 can effectively limit the sliding member 420 and the elastic member 430 to prevent the sliding member 420 and the elastic member 430 from slipping out of the receiving groove 310 during the movement. At the same time, the roller 412 provided on the sliding member 420 can abut against the boss 411 through the above-mentioned notch 320, that is, the cover plate 500 can effectively protect and limit the sliding member 420 and the elastic member 430 without affecting the normal operation of the damping assembly 400, which is conducive to improving the reliability of the overall structure.

[0122] In some embodiments, the cover plate 500 and the swing arm 300 may be fixed by bonding, welding, clamping or bolting, and therefore, this application does not limit this.

[0123] 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.

[0124] Based on this, please continue to refer to Fig. 20 The elastic member 430 provided in the embodiment of the present application may include a spring 431, and 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 is taken as an example that the spring 431 abuts between the two sliding members 420.

[0125] In some embodiments, the spring 431 may be provided in plurality, and the plurality of springs 431 may be distributed along the sliding direction of the swing arm 300, that is, the plurality of springs 431 are distributed along the X-axis direction, and the axes of the plurality of springs 431 are parallel to each other. Under this structure, the required damping force can be obtained by the number of springs 431. For example, the number of springs 431 may be one, two, three, four, etc.

[0126] Also, please read Fig. 20The damping assembly 400 may further include a limiting shaft 450, which may be fixed to the sliding member 420, and the spring 431 is sleeved on the limiting shaft 450, that is, the limiting shaft 450 is arranged along the Y-axis direction. In this way, when the spring 431 is compressed, the limiting shaft 450 can limit the spring 431 from being compressed along the Y-axis direction, thereby reducing the risk of the spring 431 bending during the compression process, which is conducive to further improving the reliability of the overall structure.

[0127] In some embodiments, the number of the above-mentioned limiting shafts 450 can correspond to the number of springs 431, that is, each spring 431 is correspondingly provided with a 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, and some springs 431 can not be 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 on the two sliding members 420, that is, 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 embodiment of the present application does not specifically limit the corresponding relationship between the limiting shaft 450 and the spring 431.

[0128] In addition, the spring 431 may be a conventional helical spring, and the cross section of the helical line of the spring 431 may be circular, see Fig.21 and Fig. 22 , Fig.21 A structural diagram of a spring 431 provided in an embodiment of the present application, Fig. 22 for Fig.21 Alternatively, the cross section of the helical line of the spring 431 may also be a square, see Fig.23 and Fig.24 , Fig.23 This is a structural diagram of another spring 431 provided in an embodiment of the present application. Fig.24 for Fig.23 Alternatively, the cross section of the helical line of the spring may also be a regular polygon or other shapes. Therefore, the present application embodiment does not make any special limitation on this.

[0129] In other embodiments, the elastic member 430 may also be a special-shaped spring, which has an irregular structure. For example, the special-shaped spring may be a variable diameter coil spring, a wave spring, or a leaf spring 432.

[0130] For example, see Fig.25 and Fig.26 , Fig.25 A structural diagram of a leaf spring 432 provided in an embodiment of the present application, Fig.26 Another rotating shaft mechanism 23 (elastic member 430 is) provided in the embodiment of the present application Fig.25 The structural diagram of the leaf spring 432 provided above is a leaf spring 432, the above-mentioned special-shaped spring is a leaf spring 432, the plane where the surface of the leaf spring 432 is located is parallel to the sliding direction and the 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 part of the regions of the plurality of hollow structures 432a are distributed along 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 direction.

[0131] In this way, since the plurality of hollow structures 432a are distributed along the Y-axis direction, the leaf spring 432 can be compressed along the Y-axis direction. Furthermore, since the leaf spring 432 is arranged along a direction parallel to the XY plane and can be compressed along the Y-axis direction through the plurality of hollow structures 432a, that is, by controlling the size of the hollow structures 432a, the elastic force that the leaf spring 432 can generate can be controlled, and therefore, the size of the leaf spring 432 along the Z-axis direction can be reduced, that is, the thickness of the leaf spring 432 can be reduced, which is more conducive to the thinning of the terminal.

[0132] Please continue reading Fig.25 and Fig.26 The leaf spring 432 bends and extends in an approximately "S" shape in the XY plane, thereby forming a plurality of hollow structures 432a extending along the X direction and distributed along the Y axis on the leaf spring 432. When the leaf spring 432 is compressed, the gap of the hollow structure 432a is reduced, so that the leaf spring 432 generates elastic force.

[0133] See also Fig. 27 , Fig. 27 A structural diagram of another leaf spring 432 provided in an embodiment of the present application. Fig.25 The structure shown is similar, the difference is that the gap of the hollow structure 432a gradually changes along the X-axis direction, and its function is the same as above, so it will not be described repeatedly.

[0134] See also Fig.28 , Fig.28A structural diagram of another leaf spring 432 provided in an embodiment of the present application, the leaf spring 432 may include a plurality of sub-regions 432b, each sub-region 432b has a hollow structure 432a extending along the X-axis direction, and two adjacent sub-regions 432b are fixedly connected to each other to form an integral structure, and the connection point is located at the midpoint of the sub-region 432b along the X-axis direction. When the leaf spring 432 is compressed along the Y-axis direction, the hollow structures 432a approach each other, and the ends of the two adjacent sub-regions 432b (the ends along the X-axis direction) separate from each other, that is, the leaf spring 432 undergoes elastic deformation, thereby being able to generate elastic force.

[0135] See also Fig.29 , Fig.29 A structural diagram of another leaf spring 432 provided in an embodiment of the present application, wherein the leaf spring 432 is Fig.28 The structure shown is similar, except that the hollow structures 432a of two adjacent sub-areas 432b are connected to each other at the connection point. In this way, when the leaf spring 432 is compressed along the Y-axis direction, the connection points of the two adjacent sub-areas 432b can be separated from each other along the X-axis direction, so that the leaf spring 432 can undergo a larger elastic deformation, that is, can generate a larger elastic force.

[0136] See also Fig.30 , Fig.30 A structural diagram of another leaf spring 432 provided in an embodiment of the present application, wherein the leaf spring 432 is similar to the structure shown in the figure, except that the two ends of each sub-region 432b form an approximately right-angle structure, and its function is the same as described above, so it will not be described repeatedly.

[0137] See also Fig.31 , Fig.31 A structural diagram of another leaf spring 432 provided in an embodiment of the present application, wherein the leaf spring 432 is Fig.28 The structure shown is similar, except that the gap of the hollow structure 432a decreases from the middle to the ends along the X-axis direction. In this way, when the leaf spring 432 is compressed along the Y-axis direction, the gap of the hollow structure 432a is larger, so that the leaf spring 432 can undergo a larger elastic deformation, that is, it can generate a larger elastic force.

[0138] See also Fig.32 , Fig.32 A structural diagram of another leaf spring 432 provided in an embodiment of the present application, wherein the leaf spring 432 is Fig.31The structure shown is similar, except that the hollow structures 432a of two adjacent sub-areas 432b are connected to each other at the connection point. In this way, when the leaf spring 432 is compressed along the Y-axis direction, the connection points of the two adjacent sub-areas 432b can be separated from each other along the X-axis direction, so that the leaf spring 432 can undergo greater elastic deformation, that is, can generate greater elastic force.

[0139] See also Fig.33 , Fig.33 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 portion 432d and the second elastic portion 432e in the XY plane are both arc-shaped structures, and the two are arranged symmetrically along the Y axis, and the above-mentioned hollow structure 432a is provided 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 approach each other, and the middle areas of the first elastic portion 432d and the second elastic portion 432e move away from each other, that is, the first elastic portion 432d and the second elastic portion 432e are further bent, elastically deformed, and thus elastic force can be generated.

[0140] See also Fig.34 , Fig.34 The structural diagram of another leaf spring 432 provided in the embodiment of the present application is shown. The leaf spring 432 is spirally extended outward from the midpoint in the XY plane to form a spiral structure. The leaf spring 432 can fix the midpoint on the swing arm 300. In this way, when the leaf spring 432 is compressed along the Y-axis direction, the spiral gap (i.e., the hollow structure 432a) distributed along the Y-axis direction is reduced, elastic deformation occurs, and thus elastic force can be generated.

[0141] 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.

[0142] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A rotating shaft mechanism, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is characterized in that The door panel is provided with a slide groove, the second end of the swing arm extends into the slide groove, and the cam structure is arranged between the side wall of the slide groove and the sliding member.

16. The rotating shaft mechanism according to claim 15, It is 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 support device, It is 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, Features: 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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