Sliding mechanism and electronic device

Abstract

The present application provides a sliding mechanism and an electronic device, which relates to the technical field of electronic devices and is used to solve the problem of how to make the sliding mechanism have a damping effect. The sliding mechanism includes a slide rail, a slide member and a damping assembly. The damping assembly includes a first elastic structure, a second elastic structure, a first concave-convex surface area and a second concave-convex surface area. One of the first elastic structure and the first concave-convex surface area is arranged on the slide rail and the other is arranged on the slide member, and one of the second elastic structure and the second concave-convex surface area is arranged on the slide rail and the other is arranged on the slide member. In the process of the slide member sliding relative to the slide rail, when the first elastic structure cooperates with the concave portion of the first concave-convex surface area, the second elastic structure cooperates with the convex portion of the second concave-convex surface area; when the first elastic structure cooperates with the convex portion of the first concave-convex surface area, the second elastic structure cooperates with the concave portion of the second concave-convex surface area. The sliding mechanism provided in the present application is used to realize the relative sliding of two components.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a sliding mechanism and an electronic equipment. Background Art

[0002] In electronic devices such as foldable screen mobile phones, tablet computers and laptop computers, there is an active connection device, which is used to realize the active connection between at least two components in the electronic device. For example, when the electronic device is a foldable screen mobile phone, the above-mentioned active connection device can be a rotating shaft device connected between two shells, and the rotating shaft device is used to realize the rotation connection between the two shells.

[0003] In some application scenarios, the movable connection device may include a sliding mechanism and a damping mechanism at the same time, wherein the sliding mechanism is used to generate relative sliding to support the movable connection device to move, and the damping mechanism enables the movable connection device to have a certain damping effect when it moves. However, in the prior art, the damping mechanism and the sliding mechanism are usually independently arranged in the movable connection device, resulting in a large volume of the movable connection device, which is not conducive to the thinness and miniaturization design of the electronic device. Summary of the invention

[0004] The present application provides a sliding mechanism and an electronic device, which can make the sliding mechanism have a damping effect, which is beneficial to reducing the occupied space of the movable connection device and realizing the thinning or miniaturization of the electronic device.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions:

[0006] In a first aspect, a sliding mechanism is provided, which includes a slide rail, a slide member, and a damping assembly. The extension direction of the slide rail is a first direction. The slide member is slidably matched with the slide rail. The damping assembly includes a first elastic structure, a second elastic structure, a first concave-convex surface area, and a second concave-convex surface area. One of the first elastic structure and the first concave-convex surface area is provided on the slide rail and the other is provided on the slide member, and the first elastic structure cooperates with the first concave-convex surface area. One of the second elastic structure and the second concave-convex surface area is provided on the slide rail and the other is provided on the slide member, and the second elastic structure cooperates with the second concave-convex surface area.

[0007] On the basis of the above, the first concave-convex surface area and the second concave-convex surface area both include a plurality of concave surface areas spaced apart along the first direction, and a convex surface area is formed between two adjacent concave surface areas. In the process of the sliding member sliding relative to the slide rail, when the first elastic structure cooperates with the concave surface area of ​​the first concave-convex surface area, the second elastic structure cooperates with the convex surface area of ​​the second concave-convex surface area; when the first elastic structure cooperates with the convex surface area of ​​the first concave-convex surface area, the second elastic structure cooperates with the concave surface area of ​​the second concave-convex surface area.

[0008] In this way, when the sliding member slides relative to the slide rail, the first elastic structure slides along the first concave-convex surface area, and the second elastic structure slides along the second concave-convex surface area, and when the first elastic structure cooperates with the concave surface area, the second elastic structure cooperates with the convex surface area, and when the first elastic structure cooperates with the convex surface area, the second elastic structure cooperates with the concave surface area. On this basis, when the first elastic structure and the second elastic structure cooperate with the concave surface area, the elastic force applied to the first side surface is small, and the friction force F 摩 The first elastic structure and the second elastic structure exert a relatively large elastic force on the first side surface when they cooperate with the convex portion, and the friction force F 摩 Larger. This alternating fit can increase the friction force F 摩 When the sliding mechanism is applied to the movable connection device in the electronic device, there is no need to set up a damping mechanism, so the occupied space of the movable connection device can be reduced, which is conducive to the thinning or miniaturization of the electronic device.

[0009] In a possible implementation of the first aspect, the distance between two adjacent concave portions in the first concave-convex surface area is equal to the distance between two adjacent concave portions in the second concave-convex surface area. The distance between two adjacent concave portions in the first concave-convex surface area and the second concave-convex surface area is a first distance D1, and the distance between the first elastic structure and the second elastic structure in the first direction is a second distance D2. The first concave-convex surface area and the second concave-convex surface area are aligned in the first direction, and the second distance D2 satisfies the condition: D2 = (K + 1 / 2) × D1. Wherein K is a positive integer of 0 or greater than 0. In such an arrangement, when the first elastic structure cooperates with the concave portion of the first concave-convex surface area, the second elastic structure cooperates with the convex portion of the second concave-convex surface area during the sliding process of the sliding member relative to the slide rail; when the first elastic structure cooperates with the convex portion of the first concave-convex surface area, the second elastic structure cooperates with the concave portion of the second concave-convex surface area. This layout is simple and easy to operate.

[0010] In a possible implementation of the first aspect, the slide rail is provided with a slide groove, the slide groove includes a first inner surface, and the first inner surface is parallel to the first direction. At least part of the sliding member slides in the slide groove, and the at least part includes a first side surface, and the first side surface faces the first inner surface. The slide rail includes a first limiting portion, the first limiting portion is located on the side of the first inner surface away from the first side surface, and the first inner surface is formed on the first limiting portion. On this basis, the first elastic structure and the second elastic structure are arranged on the first limiting portion, and the first concave-convex surface area and the second concave-convex surface area are arranged on the first side surface; or, the first elastic structure and the second elastic structure are arranged on the above-mentioned at least part, and the first concave-convex surface area and the second concave-convex surface area are arranged on the first inner surface. In this layout, the first elastic structure and the second elastic structure are arranged on the same component, and the first concave-convex surface area and the second concave-convex surface area are arranged on the same surface. This layout facilitates the selection of materials for sliding parts and sliding rails. Specifically, a material with greater hardness and better wear resistance can be selected to make the component with the first concave-convex surface area and the second concave-convex surface area, and a material with lower cost can be selected to make the component with the first elastic structure and the second elastic structure. Therefore, it is easy to operate and can save costs.

[0011] In a possible implementation of the first aspect, the first concave-convex surface area and the second concave-convex surface area are arranged at intervals along the second direction, the second direction is perpendicular to the first direction, and the second direction is parallel to the first side surface. The first elastic structure and the second elastic structure are arranged at intervals along the second direction. In this way, when the sliding member slides relative to the slide rail, the friction force is staggered along the second direction, which can ensure the uniformity and stability of the distribution of the friction force. Moreover, the first elastic structure and the second elastic structure are in contact and friction with different concave-convex surface areas respectively, which can reduce wear.

[0012] In a possible implementation of the first aspect, there are multiple first elastic structures, and the multiple first elastic structures are arranged in sequence along the first direction. The multiple first elastic structures all cooperate with the concave portion of the first concave-convex surface area, or the multiple first elastic structures all cooperate with the convex portion of the first concave-convex surface area. There are multiple second elastic structures, and the multiple second elastic structures are arranged in sequence along the second direction; the multiple second elastic structures all cooperate with the convex portion of the second concave-convex surface area, or the multiple second elastic structures all cooperate with the concave portion of the second concave-convex surface area. In the process of the sliding member sliding relative to the slide rail, when the multiple first elastic structures cooperate with the concave portion of the first concave-convex surface area, the multiple second elastic structures cooperate with the convex portion of the second concave-convex surface area; when the multiple first elastic structures cooperate with the convex portion of the first concave-convex surface area, the multiple second elastic structures cooperate with the concave portion of the second concave-convex surface area. In this way, by providing multiple first elastic structures and second elastic structures, the elastic resultant force can be increased, thereby increasing the total friction force and improving the damping effect of the damping component.

[0013] In a possible implementation of the first aspect, the distance between two adjacent first elastic structures is a third distance D3, and the third distance D3 satisfies the condition: D3=E×D1. The distance between two adjacent second elastic structures is a fourth distance D4, and the fourth distance D4 satisfies the condition: D4=F×D1. Wherein, E and F are positive integers greater than 0. In this way, it can be ensured that the multiple first elastic structures 31 are all matched with the concave portion a of the first concave-convex surface area 33, or that the multiple first elastic structures 31 are all matched with the convex portion b of the first concave-convex surface area 33, and at the same time, it can be ensured that the multiple second elastic structures 32 are all matched with the convex portion b of the second concave-convex surface area 34, or that the multiple second elastic structures 32 are all matched with the concave portion a of the second concave-convex surface area 34.

[0014] In a possible implementation of the first aspect, the multiple concave surface areas in the first concave-convex surface area are respectively aligned with the multiple concave surface areas in the second concave-convex surface area and connected to form a concave surface area as a whole, and the multiple convex surface areas in the first concave-convex surface area are respectively aligned with the multiple convex surface areas in the second concave-convex surface area and connected to form a convex surface area as a whole. In this way, the profiles of the surfaces of the first concave-convex surface area and the second concave-convex surface area are simple and easy to process.

[0015] In a possible implementation of the first aspect, the first concave-convex surface area and the second concave-convex surface area are the same concave-convex surface area, and the first elastic structure and the second elastic structure are arranged in a row along the first direction. In this way, the first elastic structure and the second elastic structure cooperate with the same concave-convex surface area, and the structure is simple and the processing cost is low.

[0016] On the basis of the above, optionally, the number of the first elastic structure is at least one, the number of the second elastic structure is at least one, and the at least one first elastic structure and the at least one second elastic structure are arranged alternately in sequence along the first direction. In this way, the number of the first elastic structure and the second elastic structure can be increased to increase the elastic force, thereby increasing the total friction force and improving the damping effect of the damping component.

[0017] In a possible implementation of the first aspect, the first elastic structure is arranged at the first limit portion, and the first concave-convex surface area is arranged at the first side. The first elastic structure includes a base, a first pressing member and a first elastic member. The base is arranged at the first limit portion, and a sliding hole is arranged in the base, one end of the sliding hole is closed to form a closed end, and the other end of the sliding hole is opened to form an open end, and the open end is located on the side of the closed end facing the first concave-convex surface area. The first pressing member is arranged in the sliding hole and can slide along the sliding hole, and part of the first pressing member extends out of the open end. The first elastic member is arranged in the sliding hole and is located between the closed end and the first pressing member, and the part of the first pressing member extending out of the open end cooperates with the first concave-convex surface area. This structure provides elastic force with the help of the first elastic member, and with the help of the first pressing member contacting and rubbing with the first concave-convex surface area, the first elastic member can be made of a structure with stable elastic force, and the first pressing member can be made of a material with better wear resistance. This layout is reasonable and can extend the life of the first elastic structure. Moreover, the first pressing member and the first elastic member are both fixed on the base, so that the first elastic structure can be assembled with the first limiting portion as an independent product, which can improve the assembly efficiency of the sliding mechanism.

[0018] In a possible implementation of the first aspect, the first limiting portion is provided with a first threaded hole, and one end of the first threaded hole passes through the first inner surface. The outer periphery of the base is provided with a first external thread, the axial direction of the first external thread is parallel to the axial direction of the sliding hole, the base is accommodated in the first threaded hole, and the first external thread is threadedly matched with the first threaded hole. In this way, by rotating the base in the first threaded hole, the position of the first elastic structure can be adjusted in the axial direction of the first threaded hole, thereby adjusting the elastic force of the first elastic structure. Moreover, after the first pressing member is worn, the service life of the first elastic structure can be extended by adjusting the position of the first elastic structure.

[0019] In a possible implementation of the first aspect, the base includes a base body and a fixing member. A first external thread and a sliding hole are provided on the base body, and the base body is further provided with an inner hole, which is located on a side of the closed end away from the open end, the inner hole and the sliding hole are coaxially arranged and interpenetrate each other, and an end of the inner hole away from the sliding hole passes through the base body. The fixing member is provided in the inner hole. In this way, the first pressing member and the first elastic member can be installed from the inner hole into the sliding hole, and then the fixing member is assembled in the inner hole, thereby realizing the assembly of the first pressing member and the first elastic member, and this assembly method is simple and easy to operate.

[0020] In a possible implementation of the first aspect, the inner hole is a second threaded hole, and the outer periphery of the fixing member is provided with a second external thread, and the second external thread is threadedly matched with the second threaded hole. In this way, the inner hole is threadedly connected to the inner hole, and this connection method is simple and can be disassembled. After the first pressing member is worn, it is convenient to replace the first pressing member, which can save the maintenance cost of the first elastic structure.

[0021] In a possible implementation of the first aspect, the first limiting portion also includes a first outer surface, the first outer surface is opposite to the first inner surface, and the first threaded hole passes through the first outer surface. An operating groove is provided on the end surface of the fixing member away from the sliding hole, and the operating groove is a non-circular groove. In this way, the assembler holds the operating tool and makes the operating tool cooperate with the operating groove to drive the first elastic structure to rotate, so that the first elastic structure is installed in the first threaded hole from the end opening of the first threaded hole passing through the first outer surface. At the same time, with the help of the operating tool, the position of the first elastic structure in the first threaded hole can also be adjusted, so as to achieve the purpose of adjusting the elastic force of the first elastic structure. This installation and adjustment operation is convenient.

[0022] In a possible implementation of the first aspect, the first external thread and the second external thread have opposite rotation directions. In this way, when the first elastic structure is installed or adjusted by means of an operating tool, the fixing member can be prevented from being separated from the base body, thereby ensuring the structural stability of the first elastic structure.

[0023] In a possible implementation manner of the first aspect, the first pressing member is a push ball, a push pin, or a push block.

[0024] In a possible implementation of the first aspect, the first elastic structure is arranged in the above-mentioned at least part, and the first concave-convex surface area is arranged in the first inner surface. The above-mentioned at least part also includes a second side surface, which is opposite to the first side surface, and the slide groove also includes a second inner surface, which is opposite to the second side surface. The first elastic structure includes a base, a second pressing member, a third pressing member, and a second elastic member. The base is arranged in the above-mentioned at least part, and a sliding hole is arranged in the base, one end of the sliding hole is opened to form a first open end, and the other end of the sliding hole is opened to form a second open end, the first open end faces the first inner surface, and the second open end faces the second inner surface. The second pressing member is arranged in the sliding hole and can slide along the sliding hole, and part of the second pressing member extends from the first open end. The third pressing member is arranged in the sliding hole and can slide along the sliding hole, and part of the third pressing member extends from the second open end. The second elastic member is arranged in the sliding hole and is located between the second pressing member and the third pressing member, the second pressing member cooperates with the first concave-convex surface area, and the third pressing member cooperates with the second inner surface. This structure uses the second elastic member to provide elastic force, uses the second pressing member to contact and rub with the first concave-convex surface area, and the third pressing member to contact and rub with the second inner surface. The second elastic member can be made of a structure with stable elastic force, and the second pressing member and the third pressing member can be made of materials with better wear resistance. This layout is reasonable and can extend the life of the first elastic structure. Moreover, the second pressing member, the third pressing member and the second elastic member are all fixed on the base. In this way, the first elastic structure can be assembled with the sliding member as an independent product, which can improve the assembly efficiency of the sliding mechanism.

[0025] In a possible implementation of the first aspect, the damping assembly further includes a third concave-convex surface area. The third concave-convex surface area is provided on the second inner surface, and the third concave-convex surface area includes a plurality of concave portions arranged at intervals along the first direction, and a convex portion is formed between two adjacent concave portions. The distance between two adjacent concave portions in the third concave-convex surface area is equal to the distance between two adjacent concave portions in the first concave-convex surface area, and the third concave-convex surface area is aligned with the first concave-convex surface area in the first direction. The third top pressure member specifically cooperates with the third concave-convex surface area of ​​the second inner surface. In this way, in addition to generating friction force by means of the first elastic structure cooperating with the first concave-convex surface area, the damping assembly also generates friction force by means of the first elastic structure cooperating with the third concave-convex surface area, thereby further enhancing the damping effect of the damping assembly. At the same time, the relative sides of the sliding member are subjected to friction force at the same time, and the stability is better during the sliding process of the sliding member relative to the slide rail, thereby preventing the sliding member from being skewed or even stuck.

[0026] In a possible implementation manner of the first aspect, the concave portion is a concave spherical surface, a concave arc surface, an inverted conical surface, or an inverted frustum surface with an inclined side surface and a flat bottom surface.

[0027] In a possible implementation of the first aspect, the surface roughness of the concave portion is greater than or equal to 0.2 and less than or equal to 0.6. The surface roughness of the convex portion is greater than or equal to 0.1 and less than or equal to 0.3. In this way, the roughness of the first concave-convex surface area and the second concave-convex surface area is moderate, which is convenient for application in 3C products.

[0028] In a possible implementation of the first aspect, the distance between two adjacent concave portions in the first concave-convex surface area is equal to the distance between two adjacent concave portions in the second concave-convex surface area. The distance between two adjacent concave portions in the first concave-convex surface area and the second concave-convex surface area is a first distance D1, and the distance between the first elastic structure and the second elastic structure in the first direction is a second distance D2. The second distance D2 satisfies the condition: D2=M×D1, the first concave-convex surface area and the second concave-convex surface area are staggered in the first direction, and the stagger amount D between the first concave-convex surface area and the second concave-convex surface area is d Satisfied conditions: D d =(N+1 / 2)×D1. In this way, when the sliding member slides relative to the slide rail, when the first elastic structure cooperates with the concave portion, the second elastic structure cooperates with the convex portion, and when the first elastic structure cooperates with the convex portion, the second elastic structure cooperates with the concave portion. This alternating cooperation can also increase the friction force F 摩 The layout is simple and easy to implement.

[0029] In a second aspect, an electronic device is provided, which includes a first component, a second component and a movable connection device, wherein the movable connection device is connected between the first component and the second component, and the movable connection device includes a sliding mechanism as described in any of the above technical solutions.

[0030] Since the movable connection device in the electronic device provided by the present application includes the sliding mechanism as described in any of the above technical solutions, the volume of the movable connection device can be reduced, which is conducive to the thinning and miniaturization of the electronic device.

[0031] In a possible implementation of the second aspect, the electronic device is a folding screen terminal, and the folding screen terminal includes a first shell, a second shell, and a hinge device connected between the first shell and the second shell. The first shell forms a first component, the second shell forms a second component, and the hinge device forms a movable connection device. In this way, it is beneficial to reduce the volume of the hinge device, which is beneficial to the thinning and miniaturization of the folding screen terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A three-dimensional diagram of a foldable screen terminal provided in some embodiments of the present application;

[0033] Figure 2 for Figure 1 The schematic diagram of the exploded structure of the folding screen terminal shown;

[0034] Figure 3 for Figure 1 and Figure 2 A three-dimensional diagram of the foldable screen terminal in a folded state;

[0035] Figure 4 for Figure 3 The schematic diagram of the cross-sectional structure of the folding screen terminal along the AA direction is shown;

[0036] Figure 5 for Figure 4 A partial enlarged view of area I in the folding screen terminal shown;

[0037] Figure 6 A three-dimensional diagram of a sliding mechanism provided for some embodiments of the present application;

[0038] Figure 7 for Figure 6 A schematic diagram of the structure when the sliding mechanism is fixed on the connecting member;

[0039] Figure 8 for Figure 6 A three-dimensional view of the sliding mechanism shown with the slide rail hidden;

[0040] Fig. 9 for Figure 8 A three-dimensional view of a first elastic structure in the sliding mechanism;

[0041] Fig.10 for Fig. 9 a three-dimensional cross-sectional view of the first elastic structure shown;

[0042] Fig.11 for Figure 6 A partial cross-sectional view of the sliding mechanism at the first elastic structure;

[0043] Fig.12 for Figure 8 A schematic structural diagram of a sliding member in the sliding mechanism shown on the first side;

[0044] Fig.13 for Fig.12 A schematic diagram of the relative position of the structure shown and the first elastic structure and the second elastic structure;

[0045] Fig.14 for Fig.13 A schematic diagram of the structure of the sliding member after it moves a certain distance along a direction M relative to the first elastic structure and the second elastic structure in the structure shown;

[0046] Fig.15 A three-dimensional diagram of the sliding mechanism after the sliding rail is hidden is provided for some other embodiments of the present application;

[0047] Fig.16 for Fig.15 A schematic structural diagram of the structure shown on the first side;

[0048] Fig.17 A three-dimensional diagram of the sliding mechanism provided in some other embodiments of the present application after the sliding rail is hidden;

[0049] Fig.18 for Fig.17 A three-dimensional view of the sliding mechanism shown in another perspective;

[0050] Fig.19 A three-dimensional diagram of the sliding mechanism after the sliding rail is hidden is provided for some other embodiments of the present application;

[0051] Fig. 20 A three-dimensional diagram of the sliding mechanism after the sliding rail is hidden is provided for some other embodiments of the present application;

[0052] Fig.21 A three-dimensional diagram of the sliding mechanism after the sliding rail is hidden is provided for some other embodiments of the present application;

[0053] Fig. 22 A three-dimensional diagram of the sliding mechanism after the sliding rail is hidden is provided for some other embodiments of the present application;

[0054] Fig.23 A three-dimensional diagram of the sliding mechanism after the sliding rail is hidden is provided for some other embodiments of the present application;

[0055] Fig.24 A three-dimensional diagram of a sliding mechanism provided in some other embodiments of the present application;

[0056] Fig.25 for Fig.24 A three-dimensional view of the sliding mechanism shown with the sliding member hidden;

[0057] Fig.26 for Fig.25 A three-dimensional view of a first elastic structure in the sliding mechanism;

[0058] Fig. 27 for Fig.26 a three-dimensional cross-sectional view of the first elastic structure shown;

[0059] Fig.28 for Fig.25 A three-dimensional view of the sliding mechanism shown in another perspective;

[0060] Fig.29 Schematic diagram of the relative positions of the sliding member, the first elastic structure and the second elastic structure in the sliding mechanism provided in some other embodiments of the present application. DETAILED DESCRIPTION

[0061] In the embodiments of the present application, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features.

[0062] In the embodiments of the present application, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0063] In the embodiments of the present application, unless otherwise specified, the description "parallel" means approximately parallel within a certain error range, and the error range may be a range of less than or equal to 5° relative to the absolute parallel deviation angle. The description "perpendicular" means approximately perpendicular within a certain error range, and the error range may be a range of less than or equal to 5° relative to the absolute perpendicular deviation angle.

[0064] The present application provides an electronic device, which may be a user equipment (UE) or a terminal device, for example, the electronic device may be a tablet computer (portable android device, PAD), a personal digital assistant (PDA), a handheld device with a wireless communication function, a computing device, a vehicle-mounted device, a wearable device, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in remote medicine, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, and other mobile terminals or fixed terminals.

[0065] The electronic device includes an articulation device, which is used to realize the articulation of multiple components in the electronic device. For example, the articulation device is connected between a first component and a second component to realize the articulation between the first component and the second component. The articulation device also includes a sliding mechanism and a damping mechanism. The sliding mechanism is used to generate relative sliding to support the articulation device to move. The damping mechanism enables the articulation device to have a certain damping effect when it moves.

[0066] The following takes the electronic device as a folding screen terminal as an example to introduce an application scenario and specific structural implementation method of the movable connection device and the sliding mechanism and damping mechanism in the movable device. Among them, the folding screen terminal includes but is not limited to 3C products such as handheld smart phones, PADs, PDAs, and personal computers (PCs).

[0067] For details, please refer to Figure 1 and Figure 2 , Figure 1 A three-dimensional diagram of a folding screen terminal 100 provided in some embodiments of the present application, Figure 2 for Figure 1 The schematic diagram of the exploded structure of the folding screen terminal 100 is shown. Figure 1 and Figure 2In the embodiment, the folding screen terminal 100 is in an unfolded state, and the folding screen terminal 100 is approximately in a rectangular flat plate shape in the unfolded state. In some other embodiments, the shape of the folding screen terminal 100 can also be a square flat plate shape, a circular flat plate shape, an elliptical flat plate shape, etc.

[0068] The folding screen terminal 100 includes a folding screen 10 and a supporting device 20 .

[0069] The foldable screen 10 is used to display information such as images and videos. The foldable screen 10 can be an organic light-emitting diode (OLED) screen, a micro organic light-emitting diode (micro organic light-emitting diode) screen, a quantum dot light-emitting diode (QLED) screen, a liquid crystal display (LCD), and the like.

[0070] The folding screen 10 has a display area for displaying image information, and the display area of ​​the folding screen 10 is exposed to facilitate presenting images, videos and other information to the user. The folding screen 10 includes a first folding screen portion 11, a second folding screen portion 12 and a third folding screen portion 13, and the third folding screen portion 13 is connected between the first folding screen portion 11 and the second folding screen portion 12. When the folding screen 10 is in the unfolded state, the first folding screen portion 11, the third folding screen portion 13, and the second folding screen portion 12 are arranged in a row and flush, which can realize a large-screen display, so as to provide users with richer information and bring users a better user experience.

[0071] At least the third folding screen portion 13 of the folding screen 10 is a flexible screen structure. In this way, the third folding screen portion 13 can be bent and deformed after being subjected to external force, so that the folding screen 10 is Figure 1 The first folding screen portion 11 and the second folding screen portion 12 of the folding screen 10 can be a flexible screen structure, a hard screen structure, or a partially flexible screen structure and a partially hard screen structure, which is not specifically limited here.

[0072] See also Figure 3 , Figure 3 for Figure 1 and Figure 2The three-dimensional diagram of the folding screen terminal 100 shown is in a folded state. When the folding screen terminal 100 is in a folded state, the folding screen 10 is also in a folded state. In this state, the first folding screen part 11 and the second folding screen part 12 of the folding screen 10 are approximately parallel and opposite. It should be noted that the angle between the first folding screen part 11 and the second folding screen part 12 is within 30°, and the first folding screen part 11 and the second folding screen part 12 can be considered to be approximately parallel. The first folding screen part 11 and the second folding screen part 12 are opposite to each other, which means that the display surface of the first folding screen part 11 faces the display surface of the second folding screen part 12. The third folding screen part 13 is in a bent state.

[0073] When the folding screen terminal 100 is in the folded state, please continue to refer to Figure 3 The supporting device 20 is protected outside the folding screen 10, and the folding screen 10 is invisible to the user, which can prevent the folding screen 10 from being scratched by hard objects, and the size of the folding screen terminal 100 is reduced, which is convenient to carry.

[0074] The support device 20 is used to carry the folding screen 10. The support device 20 includes a first shell (also called a main shell) 21, a second shell (also called a sub-shell) 22 and a hinge device 23. The first folding screen part 11 is arranged on the first shell 21, and the second folding screen part 12 is arranged on the second shell 22. The hinge device 23 is connected between the first shell 21 and the second shell 22, and the third folding screen part 13 is arranged on the hinge device 23. The first shell 21 forms the above-mentioned first component, the second shell 22 forms the above-mentioned second component, and the hinge device 23 forms the above-mentioned movable connection device. The hinge device 23 is used to realize the rotation between the second shell 22 and the first shell 21 to support the folding of the folding screen 10 between the unfolded state and the folded state.

[0075] See also Figure 4 , Figure 4 for Figure 3 The cross-sectional structure diagram of the folding screen terminal 100 along the AA direction is shown. The hinge device 23 includes a hinge base 231, a sliding swing arm 232, a sliding mechanism 233 and a connecting member 234.

[0076] The hinge base 231 (also called the middle beam) provides a position reference for the hinge device 23. The first housing 21 is rotatably connected to the hinge base 231. The first housing 21 can rotate relative to the hinge base 231 to enable the folding screen terminal 100 to move between the unfolded state and the folded state. At the same time, the hinge base 231 is also used to support part of the folding screen. Specifically, the hinge base 231 is used to support Figure 4 A portion of the third folding screen portion 13 of the folding screen 10 in the electronic device is shown. The connecting member 234 is used to support another portion of the third folding screen portion 13.

[0077] See also Figure 5 , Figure 5 for Figure 4 The illustrated partial enlarged view of the area I in the folding screen terminal 100. The sliding swing arm 232 has a first end A and a second end B opposite to each other, the first end A is rotatably connected to the rotating shaft base 231, and the rotating axis of the first end A on the rotating shaft base 231 is the first axis L1.

[0078] The sliding mechanism 233 is connected between the second end B and the connecting member 234, and is used to achieve relative sliding between the second end B and the connecting member 234, so as to support the movement of the rotating shaft device 23 between the folded state and the unfolded state. The sliding mechanism 233 includes a slide rail 1 and a slide member 2. The slide rail 1 can be a slide groove type slide rail, and the slide groove type slide rail is arranged on the connecting member 234, and the slide member 2 can be a slide rod, and the slide rod is arranged on the second end B. In other embodiments, the positions of the slide rail 1 and the slide member 2 can be interchangeable, and the slide rail 1 and the slide member 2 can also have other structural forms. The extension direction of the slide rail 1 is perpendicular to the above-mentioned first axis L1, and the slide member 2 is slidably matched with the slide rail 1.

[0079] The connecting member 234 is connected to the first shell 21. Specifically, the connecting member 234 and the first shell 21 can be fixedly connected or movably connected, directly connected, or indirectly connected with the aid of other intermediate structures, which is not specifically limited here. Among them, the movable connection method includes but is not limited to at least one of a rotational connection and a sliding connection. When the connecting member 234 is directly connected to the first shell 21, the connecting member 234 and the shell 21 can be directly in contact and fixed, or can be rotated by a rotating pair, or can be slidably connected by a sliding pair. When the connecting member 234 and the first shell 21 are indirectly connected by other intermediate structures, the number of intermediate structures can be one or more. The intermediate structures, the intermediate structure and the connecting member 234, and the intermediate structure and the first shell 21 can be fixedly connected or movably connected, which is not specifically limited here. Figure 5 The connecting member 234 is rotatably connected to the first housing 21 for exemplary description. Figure 5 In the illustrated embodiment, the rotation axis of the connecting member 234 and the first housing 21 is the second axis L2.

[0080] It should be noted that Figure 5 The schematic diagram shows some components of the shaft device 23. The actual shape, size, position and configuration of these components are not limited to Figure 5 Moreover, in addition to these components, the shaft device 23 may also include other components, such as a main swing arm, a shaft cover, a lifting plate and other structures.

[0081] When the folding screen terminal 100 switches between the folded state and the unfolded state, the movement mode of each moving part in the hinge device 23 (including the sliding swing arm 232, the sliding mechanism 233 and the connecting member 234) is unique, which can ensure the movement stability of the hinge device 23.

[0082] For example, the only movement mode of the sliding swing arm 232, the sliding mechanism 233 and the connecting member 234 in the rotating shaft device 23 can be: Figure 3 The folded state shown is Figure 1 When the unfolded state is switched, the sliding arm 232 can rotate relative to the rotating shaft base 231 around the direction a1, the sliding member 2 slides relative to the slide rail 1 along the direction a2, and the connecting member 234 rotates relative to the first shell 21 along the direction a3, so that the folding screen 10 supported on the rotating shaft base 231, the connecting member 234 and the first shell 21 is unfolded. Figure 1 The folded state shown is Figure 3 When moving in the unfolded state shown, the sliding swing arm 232 can rotate in the opposite direction of direction a1 relative to the pivot base 231, the sliding member 2 slides in the opposite direction of direction a2 relative to the slide rail 1, and the connecting member 234 rotates in the opposite direction of direction a3 relative to the first shell 21, so that the folding screen 10 supported on the pivot base 231, the connecting member 234 and the first shell 21 can be folded.

[0083] On the basis of the above, the hinge device 23 also includes a damping mechanism (not shown in the figure). The damping mechanism is used to make the hinge device 23 have a certain damping force when moving between the folded state and the unfolded state, so that the folding screen terminal 100 can be maintained in the folded state, the unfolded state, and one or more semi-folded states between the folded state and the unfolded state. Moreover, the damping mechanism can achieve a certain folding feel, which can bring users a better use experience.

[0084] In the rotating shaft device 23, the damping mechanism and the sliding mechanism 233 are usually independently arranged. Figure 5 The sliding mechanism 233 is disposed between the sliding swing arm 232 and the connecting member 234, and the damping mechanism can be disposed between the sliding swing arm 232 (or other swing arms) and the rotating shaft base 231. The specific structural form of the damping mechanism includes but is not limited to an elastic cam mechanism and a friction damping mechanism, so that the swing arm has a certain damping force relative to the rotating shaft base 231. On this basis, since the movement mode of each moving part in the rotating shaft device 23 is unique, the rotating shaft device 23 can have a damping effect. In this way, the rotating shaft device 23 is relatively large in size and occupies a large space in the folding screen terminal 100, which is not conducive to the thinning and miniaturization design of the folding screen terminal 100.

[0085] In order to avoid the above problems, the present application provides a sliding mechanism, which integrates a damping component, and the damping component has a damping effect. When the sliding mechanism is applied to the rotating shaft device 23, since the movement form of the rotating shaft device 23 is unique, the rotating shaft device 23 can have a damping effect. It can reduce the space occupied by the rotating shaft device 23, which is conducive to the thinning and miniaturization of the folding screen terminal 100.

[0086] For details, please refer to Figure 6 , Figure 6 A three-dimensional diagram of a sliding mechanism 233 provided in some embodiments of the present application. The sliding mechanism 233 includes a slide rail 1, a slide member 2, and a damping assembly 3. In order to facilitate the description of each embodiment below, an XYZ coordinate system is established, and the length direction (also referred to as the extension direction) of the slide rail 1 in the sliding mechanism 233 is defined as the Y-axis direction, the width direction of the slide rail 1 is defined as the X-axis direction, and the height direction of the slide rail 1 is defined as the Z-axis direction. It can be understood that the coordinate system setting of the sliding mechanism 233 can be flexibly set according to actual needs, and no specific limitation is made here.

[0087] The extension direction of the slide rail 1 is the first direction (that is, the Y-axis direction). The slide rail 1 can be a slot-type slide rail or a riding-type slide rail. Figure 6 In the embodiment shown, the slide rail 1 is a slide groove type slide rail. Specifically, the slide rail 1 includes a first limit portion 11 and a second limit portion 12 arranged at intervals along the X-axis direction. When the sliding mechanism 233 is fixed to the above-mentioned connecting member 234, please refer to Figure 7 , Figure 7 for Figure 6 The structure diagram of the sliding mechanism 233 when being fixed on the connecting member 234 is shown, and the first limiting portion 11, the second limiting portion 12 and the connecting member 234 are fixed in relative position and surround a sliding groove C.

[0088] The sliding member 2 includes but is not limited to a slider, a slide post and a slide sheet. Figure 6 The slide member 2 is used as a slider for exemplary description. The slide member 2 is slidably matched with the slide rail 1. Figure 6 In the illustrated embodiment, at least a portion of the sliding member 2 is accommodated in the slide groove C and can slide along a first direction in the slide groove C. Moreover, the first limiting portion 11, the second limiting portion 12 cooperate with the connecting member 234 to prevent the sliding member 2 from escaping from the slide groove C.

[0089] Please also read Figure 6 and Figure 7 The slide groove C has a first inner surface S1, a second inner surface S2 and a third inner surface S3 which are parallel to the first direction. The first inner surface S1 is located at the first limiting portion 11, the second inner surface S2 is located at the second limiting portion 12, and the third inner surface S3 is located at the connecting member 234.

[0090] The sliding member 2 includes a first side surface S4, a second side surface S5 and a third side surface S6. The first side surface S4 faces the first inner surface S1, the second side surface S5 faces the second inner surface S2, and the third side surface S6 faces the third inner surface S3.

[0091] Based on the above, please refer to Figure 8 , Figure 8 for Figure 6 The sliding mechanism 233 is shown as a stereoscopic view after the slide rail 1 is hidden. The damping assembly 3 is used to apply a certain damping force to the slide member 2 when the slide member 2 slides relative to the slide rail 1. The damping assembly 3 includes a first elastic structure 31, a second elastic structure 32, a first concave-convex surface area 33 and a second concave-convex surface area 34.

[0092] Please also read Figure 6 and Figure 8 , the first elastic structure 31 and the second elastic structure 32 are arranged on the slide rail 1, and the first concavo-convex surface area 33 and the second concavo-convex surface area 34 are arranged on the sliding member 2. Specifically, the first elastic structure 31 and the second elastic structure 32 can be arranged on the first limit portion 11 in the slide rail 1, and the first concavo-convex surface area 33 and the second concavo-convex surface area 34 can be arranged on the first side surface S4 of the sliding member 2. In this layout, the first elastic structure 31 and the second elastic structure 32 are arranged on the same component, and the first concavo-convex surface area 33 and the second concavo-convex surface area 34 are arranged on the same surface. This layout facilitates the selection of materials for the sliding member and the slide rail. Specifically, a material with greater hardness and better wear resistance can be selected to make the sliding member, and a material with lower cost can be selected to make the slide rail, so it is easy to operate and can save costs.

[0093] The first elastic structure 31 cooperates with the first concavoconvex surface area 33, and the second elastic structure 32 cooperates with the second concavoconvex surface area 34. When the sliding member 2 slides relative to the slide rail 1, the first elastic structure 31 slides along the first concavoconvex surface area 33, and the second elastic structure 32 slides along the second concavoconvex surface area 34.

[0094] See also Fig. 9 and Fig.10 , Fig. 9 for Figure 8 The three-dimensional diagram of the first elastic structure 31 in the sliding mechanism 233 is shown. Fig.10 for Fig. 9 A three-dimensional cross-sectional view of the first elastic structure 31 is shown.

[0095] The first elastic structure 31 includes a base 311 , a first pressing member 312 and a first elastic member 313 .

[0096] The base 311 is disposed on the first limiting portion 11, and a sliding hole 3111 is disposed in the base 311. One end of the sliding hole 3111 is closed to form a closed end 3111b, and the other end of the sliding hole 3111 is open to form an open end 3111a. The open end 3111a is located on the side of the closed end 3111b facing the first concave-convex surface area 33.

[0097] The first pressing member 312 is disposed in the sliding hole 3111 and can slide along the sliding hole 3111 , and a portion of the first pressing member 312 extends out from the opening end 3111 a .

[0098] The first elastic member 313 is disposed in the sliding hole 3111 and located between the closed end 3111 b and the first pressing member 312 .

[0099] The portion of the first pressing member 312 extending out of the open end 3111 a cooperates with the first concave-convex surface area 33 .

[0100] This structure provides elastic force with the help of the first elastic member 313, and contacts and rubs with the first concave-convex surface area 33 with the help of the first pressing member 312. The first elastic member 313 can be made of a structure with stable elastic force, and the first pressing member 312 can be made of a material with good wear resistance. This layout is reasonable and can extend the life of the first elastic structure 31. Moreover, the first pressing member 312 and the first elastic member 313 are both fixed on the base 311. In this way, the first elastic structure 31 can be assembled with the first limiter 11 as an independent product, which can improve the assembly efficiency of the sliding mechanism 233.

[0101] The first pressing member 312 includes but is not limited to a push ball, a push pin or a push block. Fig. 9 and Fig.10 In the embodiment shown, the first pressing member 312 is a top ball. In this way, the surface of the first pressing member 312 in contact with the first concave-convex surface area 33 is a convex spherical surface, which can ensure smooth sliding and avoid jamming. In addition, in some embodiments, please refer to Fig.10 The top ball is in contact with the first elastic member 313 but not fixed. In this way, when the sliding member 2 slides relative to the slide rail 1, the first pressing member 312 can roll along the first concave-convex surface area 33, which has better flexibility and further reduces the possibility of jamming.

[0102] In addition, the first elastic member 313 includes but is not limited to a cylindrical coil spring, a torsion spring, a tower spring, a rubber strip, an elastic compressible material, etc. Fig.10 In the embodiment shown, the first elastic member 313 is a cylindrical helical spring. The cylindrical helical spring has a simple structure, can provide a large elastic force, and has a long service life, which can ensure the structural strength of the first elastic structure 31 and extend the service life of the first elastic structure 31.

[0103] Furthermore, the base 311 can be welded, connected by interference fit, or bonded to the first limiting portion 11, which is not specifically limited here.

[0104] In some embodiments, see Fig.11 , Fig.11 for Figure 6 The shown sliding mechanism 233 is a partial cross-sectional view at the first elastic structure 31. The first limiting portion 11 is provided with a first threaded hole 11a, and one end of the first threaded hole 11a passes through the first inner surface S1. The outer periphery of the base 311 is provided with a first external thread 3112, and the axial direction of the first external thread 3112 is parallel to the axial direction of the sliding hole 3111. The base 311 is accommodated in the first threaded hole 11a, and the first external thread 3112 is threadedly matched with the first threaded hole 11a. In this way, by rotating the base 311 in the first threaded hole 11a, the position of the first elastic structure 31 can be adjusted in the axial direction of the first threaded hole 11a, thereby adjusting the elastic force of the first elastic structure 31. Moreover, after the first pressing member 312 is worn, the service life of the first elastic structure 31 can be extended by adjusting the position of the first elastic structure 31.

[0105] In order to facilitate the assembly operation of the first pressing member 312 and the first elastic member 313 in the sliding hole 3111, in some embodiments, please refer to Fig.10 The base 311 includes a base body 311a and a fixing member 311b. The first external thread 3112 and the sliding hole 3111 are provided on the base body 311a. The base body 311a is also provided with an inner hole 3113. The inner hole 3113 is located on the side of the closed end 3111b away from the open end 3111a. The inner hole 3113 is coaxially arranged with the sliding hole 3111 and interpenetrates with each other, and the end of the inner hole 3113 away from the sliding hole 3111 passes through the base body 311a. The fixing member 311b is provided in the inner hole 3113. In this way, the first pressing member 312 and the first elastic member 313 can be installed in the sliding hole 3111 through the inner hole 3113, and then the fixing member 311b is assembled in the inner hole 3113, thereby realizing the assembly of the first pressing member 312 and the first elastic member 313. This assembly method is simple and easy to operate. In other embodiments, the first pressing member 312 and the first elastic member 313 may also be assembled into the sliding hole 3111 through the open end 3111 a , which is not specifically limited herein.

[0106] In some embodiments, see Fig.10 , the part of the sliding hole 3111 that forms the open end 3111a is in a constricted shape from the closed end 3111b to the open end 3111a. In this way, the first pressing member 312 can be prevented from coming out of the open end 3111a by means of the constricted part.

[0107] In the above embodiment, the fixing method of the fixing member 311b in the inner hole 3113 includes but is not limited to threaded connection, welding or interference fit connection. Fig.10 The inner hole 3113 is a second threaded hole, and the outer periphery of the fixing member 311b is provided with a second external thread 311b1, and the second external thread 311b1 is threadedly matched with the second threaded hole. In this way, the inner hole 3113 is threadedly connected to the inner hole 3113. This connection method is simple and can be disassembled. After the first pressing member 312 is worn, it is convenient to replace the first pressing member 312, which can save the maintenance cost of the first elastic structure 31.

[0108] In order to facilitate the assembly and position adjustment operation of the first elastic structure 31 in the first limiting portion 11, in some embodiments, refer to Fig.11 The first limiting portion 11 further includes a first outer surface S7, the first outer surface S7 is opposite to the first inner surface S1, and the first threaded hole 11a passes through the first outer surface S7. Fig.10 and Fig.11 The end surface of the fixing member 311b away from the slide hole 3111 is provided with an operating groove 311b2. The operating groove 311b2 is a non-circular groove, that is, the operating groove 311b2 is not a circular groove. Specifically, the operating groove 311b2 can be an elliptical groove, a triangular groove, a square groove, a pentagonal groove, a hexagonal groove, a heart-shaped groove, etc., which is not specifically limited here. Fig.10 and Fig.11 The operation groove 311b2 is exemplified as a hexagonal groove.

[0109] In this way, the assembler holds the operating tool and makes the operating tool cooperate with the operating groove 311b2 to drive the first elastic structure 31 to rotate, so that the first elastic structure 31 is installed in the first threaded hole 11a from the first threaded hole 11a passing through the opening of one end of the first outer surface S7. At the same time, with the help of the operating tool, the position of the first elastic structure 31 in the first threaded hole 11a can also be adjusted, thereby achieving the purpose of adjusting the elastic force of the first elastic structure 31. This installation and adjustment operation is convenient.

[0110] Based on the above embodiment, optionally, the first external thread 3112 and the second external thread 311b1 may have opposite directions of rotation. For example, the first external thread 3112 is one of a left-handed thread and a right-handed thread, and the second external thread 311b1 is the other of the left-handed thread and the right-handed thread. In this way, when the first elastic structure 31 is installed or adjusted by means of an operating tool, the fixing member 311b can be prevented from being separated from the base body 311a, thereby ensuring the structural stability of the first elastic structure 31.

[0111] In other embodiments, the first external thread 3112 and the second external thread 311b1 may have the same rotation direction, and on this basis, the second external thread 311b1 and the second threaded hole have a tighter fit than the first external thread 3112 and the first threaded hole 11a. In this way, when the first elastic structure 31 is installed or adjusted with the aid of an operating tool, the fixing member 311b can also be prevented from being separated from the base body 311a.

[0112] In other embodiments, the first threaded hole 11a may not penetrate the first outer surface S7. On this basis, the first elastic structure 31 may be installed or adjusted by the opening of the first threaded hole 11a that penetrates the first inner surface S1, which is not specifically limited here.

[0113] The structure of the first elastic structure 31 is described above, but of course the structure of the first elastic structure 31 is not limited thereto. In other embodiments, the first elastic structure 31 may not include the base 311. In other embodiments, the first elastic structure 31 may also be made entirely of elastic material, which is not specifically limited here.

[0114] The structures of the second elastic structure 32 and the first elastic structure 31 may be the same or different. This embodiment and the following embodiments are exemplified by assuming that the structures of the second elastic structure 32 and the first elastic structure 31 are the same.

[0115] Please return to Figure 8 The first elastic structure 31 and the second elastic structure 32 respectively apply a certain elastic force to the first side surface S4, and the elastic force is perpendicular to the first side surface S4 or has a component force perpendicular to the first side surface S4. The force perpendicular to the first side surface S4 is a positive pressure F N When the slide 2 slides relative to the slide rail 1 along the Y-axis direction, the positive pressure F N The friction is generated under the action of 摩 =μF N Wherein, μ is the dynamic friction coefficient, which is positively correlated with the roughness of the first side surface S4. Thus, the sliding mechanism 233 has a damping effect.

[0116] On the basis of the above, the first concavo-convex surface area 33 and the second concavo-convex surface area 34 are concavo-convex areas.

[0117] For details, please refer to Fig.12 , Fig.12 for Figure 8The schematic diagram of the structure of the sliding member 2 in the sliding mechanism 233 is shown on the first side surface S4. The first concave-convex surface area 33 and the second concave-convex surface area 34 both include a plurality of concave surface areas a arranged at intervals along the Y-axis direction. The concave surface areas a include, but are not limited to, concave spherical surfaces, concave arc surfaces, inverted conical surfaces, inverted frustum surfaces with inclined sides and flat bottom surfaces, etc. In this embodiment, the concave surface areas a are concave spherical surfaces.

[0118] A convex portion b is formed between two adjacent concave portions a. The convex portion b refers to a surface that is higher than the concave portion a, and the convex portion b can be planar or convex. This embodiment is illustrated by taking the convex portion b as a planar surface, which cannot be considered as a special limitation to the present application.

[0119] On the basis of the above, during the sliding of the sliding member 2 relative to the sliding rail 1, when the first elastic structure 31 cooperates with the concave portion a of the first concave-convex surface area 33, the second elastic structure 32 cooperates with the convex portion b of the second concave-convex surface area 34; when the first elastic structure 31 cooperates with the convex portion b of the first concave-convex surface area 33, the second elastic structure 32 cooperates with the concave portion a of the second concave-convex surface area 34.

[0120] It should be noted that "the first elastic structure 31 cooperates with the concave portion a of the first concave-convex surface area 33" means that the first elastic structure 31 is located on the side to which the concave portion a of the first concave-convex surface area 33 faces, and the first elastic structure 31 elastically abuts, contacts or has a certain gap with the concave portion a. Among them, "elastic abutment" means that the two are in contact with each other by elastic force, and the elastic force comes from the first elastic structure 31. Similar expressions in the following text should be understood in the same way and will not be repeated in the following text. "Contact" means that the two are in contact with each other but there is no mutual squeezing force.

[0121] “The second elastic structure 32 cooperates with the convex portion b of the second concave-convex surface area 34 ” means that the second elastic structure 32 is located on the side toward which the convex portion b of the second concave-convex surface area 34 faces, and the second elastic structure 32 elastically contacts the convex portion b.

[0122] “The first elastic structure 31 cooperates with the convex portion b of the first concave-convex surface area 33 ” means that the first elastic structure 31 is located on the side toward which the convex portion b of the first concave-convex surface area 33 faces, and the first elastic structure 31 elastically contacts the convex portion b.

[0123] “The second elastic structure 32 cooperates with the concave portion a of the second concave-convex surface area 34” means that the second elastic structure 32 is located on the side toward which the concave portion a of the second concave-convex surface area 34 faces, and the second elastic structure 32 elastically abuts, contacts or has a certain gap with the concave portion a.

[0124] See also Fig.13 , Fig.13 for Fig.12 The relative position diagram of the structure shown in FIG. 1 and the first elastic structure 31 and the second elastic structure 32 is shown in FIG. Fig.13 At the moment shown, the first elastic structure 31 cooperates with the convex portion b of the first concave-convex surface area 33, and the second elastic structure 32 cooperates with the concave portion a of the second concave-convex surface area 34. Fig.14 , Fig.14 for Fig.13 The structure of the sliding member 2 in the structure shown is a schematic diagram after it moves a certain distance along the direction M relative to the first elastic structure 31 and the second elastic structure 32. Fig.14 At the moment shown, the first elastic structure 31 cooperates with the concave portion a of the first concave-convex surface area 33 , and the second elastic structure 32 cooperates with the convex portion b of the second concave-convex surface area 34 .

[0125] In this way, when the sliding member 2 slides relative to the slide rail 1, the first elastic structure 31 slides along the first concave-convex surface area 33, and the second elastic structure 32 slides along the second concave-convex surface area 34. When the first elastic structure 31 cooperates with the concave surface a, the second elastic structure 32 cooperates with the convex surface b, and when the first elastic structure 31 cooperates with the convex surface b, the second elastic structure 32 cooperates with the concave surface a. On this basis, when the first elastic structure 31 and the second elastic structure 32 cooperate with the concave surface a, the elastic force applied to the first side surface S4 is small, and the friction force F 摩 The first elastic structure 31 and the second elastic structure 32 exert a large elastic force on the first side surface S4 when they cooperate with the convex portion b, and the friction force F 摩 Larger. This alternating fit can increase the friction force F 摩 When the sliding mechanism 233 is applied to the movable connection device in the electronic device, there is no need to set up a damping mechanism, so the occupied space of the movable connection device can be reduced, which is conducive to the thinning or miniaturization of the electronic device.

[0126] In some embodiments, please refer back to Fig.12 The distance between two adjacent concave portions a in the first concave-convex surface area 33 is equal to the distance between two adjacent concave portions a in the second concave-convex surface area 34, and both are the first distance D1. The "distance between two adjacent concave portions a" refers to the distance between the geometric centers of two adjacent concave portions a.

[0127] Please continue reading Fig.12 The first concave-convex surface area 33 and the second concave-convex surface area 34 are aligned in the Y-axis direction, that is, the multiple concave surface parts a in the first concave-convex surface area 33 are respectively aligned with the multiple recessed parts a in the second concave-convex surface area 34 in the Y-axis direction.

[0128] The first concave-convex surface area 33 and the second concave-convex surface area 34 are different concave-convex surface areas. Specifically, the first concave-convex surface area 33 and the second concave-convex surface area 34 are arranged at intervals along the second direction, the second direction is perpendicular to the first direction, and the second direction is parallel to the first side surface S4, and the second direction is also the Z-axis direction. In this way, when the sliding member 2 slides relative to the slide rail 1, the friction force is staggered along the Z direction, which can ensure the uniformity and stability of the distribution of the friction force. Moreover, the first elastic structure 31 and the second elastic structure 32 are in contact with different concave-convex surface areas respectively, which can reduce wear.

[0129] See also Fig.13 The first elastic structure 31 and the second elastic structure 32 are also spaced apart in the Z-axis direction. The distance between the first elastic structure 31 and the second elastic structure 32 in the Y-axis direction is a second distance D2, and the second distance D2 satisfies the condition: D2 = (K + 1 / 2) × D1.

[0130] Wherein, K is a positive integer of 0 or greater than 0. Fig.13 In the embodiment shown, K=2.

[0131] In addition, it should be noted that in this embodiment and the following embodiments, "D2 = (K+1 / 2) × D1" is not limited to D2 and (K+1 / 2) × D1 being absolutely equal. When the absolute value of the difference between the two is less than or equal to D1 / 8, it can be considered that the second distance D2 satisfies the condition: D2 = (K+1 / 2) × D1.

[0132] In this arrangement, when the sliding member 2 slides relative to the slide rail 1, when the first elastic structure 31 cooperates with the concave portion a of the first concave-convex surface area 33, the second elastic structure 32 cooperates with the convex portion b of the second concave-convex surface area 34; when the first elastic structure 31 cooperates with the convex portion b of the first concave-convex surface area 33, the second elastic structure 32 cooperates with the concave portion a of the second concave-convex surface area 34. This layout is simple and easy to operate.

[0133] On the basis of the above, optional, see Fig.15 and Fig.16 , Fig.15 A three-dimensional diagram of the sliding mechanism 233 after the slide rail 1 is hidden is provided for some other embodiments of the present application. Fig.16 for Fig.15The structure shown is a schematic diagram of the structure on the first side S4. The number of the first elastic structures 31 is multiple, and in example, there are 3. The multiple first elastic structures 31 are arranged in sequence along the Y-axis direction, and the multiple first elastic structures 31 are all matched with the concave portion a of the first concave-convex surface area 33, or the multiple first elastic structures 31 are all matched with the convex portion b of the first concave-convex surface area 33. Correspondingly, the number of the second elastic structures 32 is also multiple, and in example, there are 3. The multiple second elastic structures 32 are arranged in sequence along the Y-axis direction, and the multiple second elastic structures 32 are all matched with the convex portion b of the second concave-convex surface area 34, or the multiple second elastic structures 32 are all matched with the concave portion a of the second concave-convex surface area 34.

[0134] During the sliding process of the sliding member 2 relative to the sliding rail 1, when the multiple first elastic structures 31 cooperate with the concave portion a of the first concave-convex surface area 33, the multiple second elastic structures 32 cooperate with the convex portion b of the second concave-convex surface area 34; when the multiple first elastic structures 31 cooperate with the convex portion b of the first concave-convex surface area 33, the multiple second elastic structures 32 cooperate with the concave portion a of the second concave-convex surface area 34.

[0135] In this way, by providing a plurality of first elastic structures 31 and second elastic structures 32 , the elastic combined force applied to the first side surface S4 can be increased, thereby increasing the total friction force and improving the damping effect of the damping component 3 .

[0136] In the above embodiment, in order to ensure that the plurality of first elastic structures 31 cooperate with the concave portion a of the first concave-convex surface area 33, or the plurality of first elastic structures 31 cooperate with the convex portion b of the first concave-convex surface area 33, optionally, the distance between two adjacent first elastic structures 31 is a third distance D3, and the third distance D3 satisfies the condition: D3 = E × D1. Correspondingly, in order to ensure that the plurality of second elastic structures 32 cooperate with the convex portion b of the second concave-convex surface area 34, or the plurality of second elastic structures 32 cooperate with the concave portion a of the second concave-convex surface area 34, optionally, the distance between two adjacent second elastic structures is a fourth distance D4, and the fourth distance D4 satisfies the condition: D4 = F × D1. Wherein, E and F are positive integers greater than 0. E and F may be equal or different. This embodiment is exemplified by the equality of E and F, and E and F are both equal to 5. In addition, it should be noted that "D3 = E × D1" is not limited to D3 and E × D1 being absolutely equal. When the absolute value of the difference between the two is less than or equal to D1 / 8, the third distance D3 can be considered to meet the condition: D3 = E × D1. Similarly, "D4 = F × D1" is not limited to D4 and F × D1 being absolutely equal. When the absolute value of the difference between the two is less than or equal to D1 / 8, the fourth distance D4 can be considered to meet the condition: D4 = F × D1.

[0137] In order to further enhance the damping effect of the damping assembly 3, in some embodiments, see Fig.17 and Fig.18 , Fig.17 This is a three-dimensional diagram of the sliding mechanism 233 provided in some other embodiments of the present application after hiding the slide rail 1. Fig.18 for Fig.17 The three-dimensional diagram of the sliding mechanism 233 shown in another perspective. In this embodiment, in addition to the above-mentioned first elastic structure 31, the second elastic structure 32, the first concave-convex surface area 33 and the second concave-convex surface area 34, the damping assembly 3 also includes a third elastic structure 35, a fourth elastic structure 36, a third concave-convex surface area 37 and a fourth concave-convex surface area 38. The third elastic structure 35 and the fourth elastic structure 36 are arranged on the second limit portion 12 (not shown in the figure), and the third elastic structure 35 and the first elastic structure 31, and the fourth elastic structure 36 and the second elastic structure 32 are symmetrically arranged. The third concave-convex surface area 37 and the fourth concave-convex surface area 38 are arranged on the second side surface S5, and the third concave-convex surface area 37 and the first concave-convex surface area 33, and the fourth concave-convex surface area 38 and the second concave-convex surface area 34 are symmetrically arranged. Moreover, the third elastic structure 35 cooperates with the third concave-convex surface area 37, and the fourth elastic structure 36 cooperates with the fourth concave-convex surface area 38.

[0138] In this way, in addition to the friction generated by the first elastic structure 31 and the first concave-convex surface area 33, and the second elastic structure 32 and the second concave-convex surface area 34, the damping component 3 also generates friction by the third elastic structure 35 and the third concave-convex surface area 37, and the fourth elastic structure 36 and the fourth concave-convex surface area 38, thereby further improving the damping effect of the damping component 3. At the same time, the opposite sides of the sliding member 2 are subjected to friction at the same time, and the stability is better during the sliding of the sliding member 2 relative to the slide rail 1, which prevents the sliding member 2 from being skewed or even stuck.

[0139] The above embodiments are described by taking the first concave-convex surface area 33 and the second concave-convex surface area 34 as an example in which the first concave-convex surface area 33 and the second concave-convex surface area 34 are aligned in the Y-axis direction and the first concave-convex surface area 33 and the second concave-convex surface area 34 are spaced apart in the Z-axis direction. Fig.19 , Fig.19 A three-dimensional diagram of the sliding mechanism 233 after the slide rail 1 is hidden is provided for some other embodiments of the present application. The multiple concave parts a in the first concave-convex surface area 33 are respectively aligned with the multiple concave parts a in the second concave-convex surface area 34 and connected to form a concave part as a whole, and the multiple convex parts b in the first concave-convex surface area 33 are respectively aligned with the multiple convex parts b in the second concave-convex surface area 34 and connected to form a convex part as a whole. In this way, the profile of the surface of the first concave-convex surface area 33 and the second concave-convex surface area 34 is simple and easy to process.

[0140] In some other embodiments, when the first concave-convex surface area 33 and the second concave-convex surface area 34 are aligned in the Y-axis direction, the first concave-convex surface area 33 and the second concave-convex surface area 34 may also be the same concave-convex surface area. Fig. 20 , Fig. 20 A three-dimensional diagram of the sliding mechanism 233 after hiding the slide rail 1 is provided for some other embodiments of the present application. The first concave-convex surface area 33 and the second concave-convex surface area 34 are the same concave-convex surface area. On this basis, the first elastic structure 31 and the second elastic structure 32 are arranged in a row along the Y-axis direction, and the second distance D2 satisfies the condition: D2 = (K + 1 / 2) × D1.

[0141] In this way, the first elastic structure 31 and the second elastic structure 32 are aligned in the Z-axis direction. When the sliding member 2 slides relative to the slide rail 1, the first elastic structure 31 and the second elastic structure 32 slide along the same concave-convex surface area, and when the first elastic structure 31 cooperates with the concave surface a, the second elastic structure 32 cooperates with the convex surface b, and when the first elastic structure 31 cooperates with the convex surface b, the second elastic structure 32 cooperates with the concave surface a. Fig. 20 At the moment shown, the first elastic structure 31 cooperates with the convex portion b, and the second elastic structure 32 cooperates with the concave portion a. This alternating cooperation can also increase the friction force F 摩 Moreover, the first elastic structure and the second elastic structure cooperate with the same concave-convex surface area, and the structure is simple and the processing cost is low.

[0142] On the basis of the above, in order to enhance the damping effect of the damping component 3, in some embodiments, refer to Fig.21 , Fig.21 A three-dimensional diagram of the sliding mechanism 233 after hiding the slide rail 1 is provided for some other embodiments of the present application. The number of the first elastic structure 31 is at least one, and the number of the second elastic structure 32 is also at least one. Fig.21 In the embodiment, the number of the first elastic structure 31 is 1, and the number of the second elastic structure 32 is 2. At least one first elastic structure 31 and at least one second elastic structure 32 are arranged alternately in the Y-axis direction. In this way, the number of the first elastic structure 31 and the second elastic structure 32 can be increased to increase the elastic force applied to the first side surface S4, thereby increasing the total friction force and improving the damping effect of the damping component 3.

[0143] In order to further enhance the damping effect of the damping assembly 3, in some embodiments, see Fig. 22 , Fig. 22A three-dimensional diagram of the sliding mechanism 233 after the slide rail 1 is hidden is provided for some other embodiments of the present application. The first elastic structure 31 and the second elastic structure 32 are arranged into multiple rows of elastic structures, and each row of elastic structures is composed of at least one first elastic structure 31 and at least one second elastic structure 32 arranged alternately in sequence along the Y-axis direction. In this way, the number of the first elastic structure 31 and the second elastic structure 32 can be further increased, so that the elastic force applied to the first side surface S4 can be further increased, the total friction force is increased, and the damping effect of the damping component 3 is improved.

[0144] In order to further enhance the damping effect of the damping assembly 3, in some embodiments, see Fig.23 , Fig.23 A stereoscopic diagram of the sliding mechanism 233 after the slide rail 1 is hidden is provided for some other embodiments of the present application. In this embodiment, in addition to the above-mentioned first elastic structure 31, the second elastic structure 32, the first concave-convex surface area 33 and the second concave-convex surface area 34, the damping assembly 3 also includes a third elastic structure 35, a fourth elastic structure 36, a third concave-convex surface area and a fourth concave-convex surface area. The third elastic structure 35 and the fourth elastic structure 36 are arranged on the second limit portion 12 (not shown in the figure), and the third elastic structure 35 and the first elastic structure 31, and the fourth elastic structure 36 and the second elastic structure 32 are symmetrically arranged. The third concave-convex surface area and the fourth concave-convex surface area are arranged on the second side surface S5, and the third concave-convex surface area and the fourth concave-convex surface area are the same concave-convex surface area, and the third elastic structure 35 and the fourth elastic structure 36 cooperate with the same concave-convex surface area, and the same concave-convex surface area is symmetrically arranged with the same concave-convex surface area formed by the first concave-convex surface area 33 and the second concave-convex surface area 34.

[0145] In this way, in addition to generating friction force by means of the first elastic structure 31, the second elastic structure 32 and the same concave-convex surface area formed by the first concave-convex surface area 33 and the second concave-convex surface area 34, the damping component 3 also generates friction force by means of the third elastic structure 35, the fourth elastic structure 36 and the same concave-convex surface area formed by the third concave-convex surface area and the fourth concave-convex surface area, thereby further enhancing the damping effect of the damping component 3. At the same time, the opposite sides of the sliding member 2 are subjected to friction force at the same time, and the stability is better during the sliding process of the sliding member 2 relative to the slide rail 1, which prevents the sliding member 2 from being skewed or even stuck.

[0146] The above embodiments are described by taking the example that the first elastic structure 31 and the second elastic structure 32 are arranged on the first limiting portion 11, and the first concave-convex surface area 33 and the second concave-convex surface area 34 are arranged on the first side surface S4. In some other embodiments, the first elastic structure 31 and the second elastic structure 32 can also be arranged on the sliding member 2, and the first concave-convex surface area 33 and the second concave-convex surface area 34 can be arranged on the slide rail. Specifically, the first elastic structure 31 and the second elastic structure 32 can be arranged on at least part of the sliding member 2 in the slide groove C, and the first concave-convex surface area 33 and the second concave-convex surface area 34 can be arranged on the first inner surface S1. In some other embodiments, the first elastic structure 31 can also be arranged on the first limiting portion 11, and the first concave-convex surface area 33 can be arranged on the first side surface S4; and the second elastic structure 32 is arranged on the second limiting portion 12, and the second concave-convex surface area 34 is arranged on the second side surface S5. Alternatively, the first elastic structure 31 and the second elastic structure 32 are provided on at least part of the sliding member 2 in the slide slot C, the first concavoconvex surface area 33 is provided on the first inner surface S1, and the second concavoconvex surface area 34 is provided on the second inner surface S2. In some other embodiments, the first elastic structure 31 can also be provided on the first limiting portion 11, and the first concavoconvex surface area 33 is provided on the first side surface S4; while the second elastic structure 32 is provided on the connecting member 234, and the second concavoconvex surface area 34 is provided on the third side surface S6. Alternatively, the first elastic structure 31 and the second elastic structure 32 are provided on at least part of the sliding member 2 in the slide slot C, the first concavoconvex surface area 33 is provided on the first inner surface S1, and the second concavoconvex surface area 34 is provided on the third inner surface S3. As long as one of the first elastic structure 31 and the first concavoconvex surface area 33 is provided on the slide rail 1 and the other is provided on the sliding member 2, and one of the second elastic structure 32 and the second concavoconvex surface area 34 is provided on the slide rail 1 and the other is provided on the sliding member 2, it is sufficient, and no exhaustive enumeration is made here.

[0147] For examples, see Fig.24 and Fig.25 , Fig.24 A three-dimensional diagram of a sliding mechanism 233 provided in some other embodiments of the present application, Fig.25 for Fig.24 The sliding mechanism 233 is shown in a three-dimensional view after the sliding member 2 is hidden. In this embodiment, the first elastic structure 31 and the second elastic structure 32 are arranged on at least part of the sliding member 2 in the sliding groove C, and the first concave-convex surface area 33 and the second concave-convex surface area 34 are arranged on the first inner surface S1. This structure is simple and easy to implement.

[0148] exist Fig.25 In the embodiment shown, the first concave-convex surface area 33 and the second concave-convex surface area 34 are the same concave-convex surface area. On this basis, the first elastic structure 31 and the second elastic structure 32 are arranged at intervals along the Y axis direction, and the second distance D2 satisfies the condition: D2 = (K + 1 / 2) × D1.

[0149] In this way, the first elastic structure 31 and the second elastic structure 32 are aligned in the Z-axis direction. When the sliding member 2 slides relative to the slide rail 1, the first elastic structure 31 and the second elastic structure 32 slide along the same concave-convex surface area, and when the first elastic structure 31 cooperates with the concave surface a, the second elastic structure 32 cooperates with the convex surface b, and when the first elastic structure 31 cooperates with the convex surface b, the second elastic structure 32 cooperates with the concave surface a. Fig.25 At the moment shown, the first elastic structure 31 cooperates with the convex portion b, and the second elastic structure 32 cooperates with the concave portion a. This alternating cooperation can also increase the friction force F 摩 continuity and stability.

[0150] exist Fig.25 In the illustrated embodiment, the first elastic structure 31 and the second elastic structure 32 are arranged into multiple rows of elastic structures, and each row of elastic structures is composed of at least one first elastic structure 31 and at least one second elastic structure 32 arranged alternately in sequence along the Y-axis direction. In this way, the number of the first elastic structure 31 and the second elastic structure 32 can be further increased, so that the elastic force applied to the first side surface S4 can be further increased, the total friction force is increased, and the damping effect of the damping component 3 is improved.

[0151] On the basis of the above embodiment, in the concave and convex surface areas respectively matched with the multiple rows of elastic structures, the concave surface a is aligned and connected to form a concave surface as a whole, and the convex surface b is aligned and connected to form a convex surface as a whole. In this way, the first inner surface S1 is in a sawtooth shape, and the profile of the first inner surface S1 is simple and convenient to process.

[0152] exist Fig.25 In the illustrated embodiment, the structure of the first elastic structure 31 is also different from the aforementioned first elastic structure 31 .

[0153] For details, please refer to Fig.26 and Fig. 27 , Fig.26 for Fig.25 The three-dimensional diagram of the first elastic structure 31 in the sliding mechanism 233 is shown. Fig. 27 for Fig.26 The first elastic structure 31 is a three-dimensional cross-sectional view of the first elastic structure 31. The first elastic structure 31 includes a base 311, a second pressing member 314, a third pressing member 315 and a second elastic member 316.

[0154] The base 311 is disposed on at least part of the sliding member 2 in the slide groove C. A sliding hole 3111 is disposed in the base 311, one end of the sliding hole 3111 is opened to form a first opening end 3111c, and the other end of the sliding hole 3111 is opened to form a second opening end 3111d. The first opening end 3111c faces the first inner surface S1, and the second opening end 3111d faces the second inner surface S2.

[0155] The second pressing member 314 is disposed in the sliding hole 3111 and can slide along the sliding hole 3111 , and a portion of the second pressing member 314 extends out from the first opening end 3111 c .

[0156] The third pressing member 315 is disposed in the sliding hole 3111 and can slide along the sliding hole 3111 , and a portion of the third pressing member 315 extends out from the second opening end 3111 d .

[0157] The second elastic member 316 is disposed in the sliding hole 3111 and is located between the second pressing member 314 and the third pressing member 315. Fig.25 The second pressing member 314 cooperates with the first concave-convex surface area 33, and the third pressing member 315 cooperates with the second inner surface S2.

[0158] This structure provides elastic force with the help of the second elastic member 316, and with the help of the second pressing member 314 and the first concave-convex surface area 33 in contact and friction, and the third pressing member 315 and the second inner surface S2 in contact and friction, the second elastic member 316 can be made of a structure with stable elastic force, and the second pressing member 314 and the third pressing member 315 can be made of materials with better wear resistance. This layout is reasonable and can extend the life of the first elastic structure 31. Moreover, the second pressing member 314, the third pressing member 315 and the second elastic member 316 are all fixed on the base 311, so that the first elastic structure 31 can be assembled with the sliding member 2 as an independent product, which can improve the assembly efficiency of the sliding mechanism 233.

[0159] In the above embodiment, the second pressing member 314 and the third pressing member 315 include but are not limited to a push ball, a push pin or a push block. Fig. 27 and Fig.28 In the illustrated embodiment, the second pressing member 314 and the third pressing member 315 are ejector pins.

[0160] In addition, the second elastic member 316 includes but is not limited to a cylindrical coil spring, a torsion spring, a tower spring, a rubber strip, an elastic compressible material, etc. Fig.28 In the embodiment shown, the second elastic member 316 is a cylindrical helical spring. The cylindrical helical spring has a simple structure, can provide a large elastic force, and has a long service life, and can ensure the structural strength of the first elastic structure 31 and extend the service life of the first elastic structure 31.

[0161] Furthermore, the base 311 can be welded, connected by interference fit, or bonded to the sliding member 2, which is not specifically limited here.

[0162] Based on the above examples, please refer to Fig.28 , Fig.28 for Fig.25The shown three-dimensional image of the sliding mechanism 233 under another viewing angle. The damping assembly 3 also includes a third concave-convex surface area 37. The third concave-convex surface area 37 is arranged on the second inner surface S2. The third concave-convex surface area 37 also includes a plurality of concave surface areas a arranged at intervals along the Y-axis direction, and a convex surface area b is formed between two adjacent concave surface areas a. The distance between two adjacent concave surface areas a in the third concave-convex surface area 37 is equal to the distance between two adjacent concave surface areas a in the first concave-convex surface area 33, and the third concave-convex surface area 37 is aligned with the first concave-convex surface area 33 in the Y-axis direction, that is, the plurality of concave surface areas a in the third concave-convex surface area 37 are respectively aligned with the plurality of concave surface areas a in the first concave-convex surface area 33 in the Y-axis direction. On this basis, the third pressing member 315 specifically cooperates with the third concave-convex surface area 37 of the second inner surface S2.

[0163] In this way, in addition to the friction generated by the first elastic structure 31 and the first concave-convex surface area 33, the damping component 3 also generates friction by the first elastic structure 31 and the third concave-convex surface area 37, thereby further improving the damping effect of the damping component 3. At the same time, the opposite sides of the sliding member 2 are subjected to friction at the same time, and the stability of the sliding member 2 is better during the sliding process relative to the slide rail 1, which prevents the sliding member 2 from being skewed or even stuck.

[0164] On the basis of the above embodiment, the second elastic structure 32 and the first elastic structure 31 may have the same structure or may be different. This embodiment is exemplified by the fact that the second elastic structure 32 and the first elastic structure 31 have the same structure, which cannot be considered as a special limitation of the present application. On this basis, the third pressing member 315 in the second elastic structure 32 also cooperates with the third concave-convex surface area 37.

[0165] The above embodiments are described by exemplifying that the first concave-convex surface area 33 and the second concave-convex surface area 34 are aligned in the Y-axis direction, and the second distance D2 satisfies the condition: D2 = (K + 1 / 2) × D1. This embodiment can achieve the purpose of increasing the friction force F 摩 Of course, in order to achieve this purpose, other embodiments can also be provided.

[0166] For examples, see Fig.29 , Fig.29 Schematic diagram of the relative positions of the sliding member 2, the first elastic structure 31, and the second elastic structure 32 in the sliding mechanism 233 provided in some embodiments of the present application. In this embodiment, the second distance D2 satisfies the condition: D2 = M × D1. However, the first concave-convex surface area 33 and the second concave-convex surface area 34 are staggered in the Y-axis direction, and the staggered amount D between the first concave-convex surface area 33 and the second concave-convex surface area 34 is d Satisfied conditions: D d=(N+1 / 2)×D1. Wherein, M and N are positive integers 0 or greater than 0. Fig.29 In the embodiment shown, M=3, N=1. In addition, it should be noted that “D2=M×D1” is not limited to D2 being absolutely equal to M×D1. When the absolute value of the difference between the two is less than or equal to D1 / 8, it can be considered that the second distance D2 satisfies the condition: D2=M×D1. Similarly, “D d =(N+1 / 2)×D1” is not limited to D d When the absolute value of the difference between (N+1 / 2)×D1 is less than or equal to D1 / 8, the displacement D d Satisfied conditions: D d =(N+1 / 2)×D1.

[0167] In this way, when the sliding member 2 slides relative to the slide rail 1, the first elastic structure 31 slides along the first concave-convex surface area 33, and the second elastic structure 32 slides along the second concave-convex surface area 34. When the first elastic structure 31 cooperates with the concave surface a, the second elastic structure 32 cooperates with the convex surface b, and when the first elastic structure 31 cooperates with the convex surface b, the second elastic structure 32 cooperates with the concave surface a. Fig.29 At the moment shown, the first elastic structure 31 cooperates with the convex portion b, and the second elastic structure 32 cooperates with the concave portion a. This alternating cooperation can also increase the friction force F 摩 The layout is simple and easy to implement.

[0168] Based on any of the above embodiments, optionally, the number of the first elastic structures 31 and the number of the second elastic structures 32 can be equal. In this way, during the sliding process of the sliding member 2 relative to the slide rail 1, the friction forces generated when the first elastic structures 31 and the second elastic structures 32 alternately cooperate with the concave surface a are equal, so the friction force F can be further increased. 摩 continuity and stability.

[0169] Based on any of the above embodiments, optionally, the surface roughness of the concave portion a can be greater than or equal to 0.2 and less than or equal to 0.6. Specifically, the surface roughness of the concave portion a can be 0.2, 0.3, 0.4, 0.5 or 0.6. The surface roughness of the convex portion b can be greater than or equal to 0.1 and less than or equal to 0.3. Specifically, the surface roughness of the convex portion b can be 0.1, 0.2 or 0.3. In this way, the roughness of the first concave-convex surface area 33 and the second concave-convex surface area 34 is moderate, which is convenient for application in 3C products.

[0170] In the above embodiment, in order to machine the concave portion a with greater roughness, discharge machining may be used to increase the surface roughness.

[0171] According to the above formula, the friction force F 摩 =μF N It can be seen that by adjusting the roughness of the first concave-convex surface area 33 and the second concave-convex surface area 34 and the number of the first elastic structure 31 and the second elastic structure 32, the friction force F can be adjusted. 摩 The purpose of size.

[0172] For example, please refer to Table 1 below. The number of elastic structures (including the first elastic structure 31 and the second elastic structure 32) is 8. The elastic force when the elastic structure cooperates with the concave portion a is 0N, and the elastic force when the elastic structure cooperates with the convex portion b is 96N. The roughness of the concave portion a is 0.6, and the roughness of the convex portion b is 0.3. The sum of the friction forces generated by the 8 elastic structures is greater than or equal to 330N and less than 350N. Therefore, in actual application, the roughness of the concave and convex surface areas and the number of elastic structures can be designed in combination with specific application scenarios, and are not limited here.

[0173] Table 1

[0174]

[0175] The above embodiments introduce various structural forms of the sliding mechanism 233 provided by the present application. The sliding mechanism 233 can be applied to the shaft device in the above-mentioned folding screen terminal, or to other parts of the folding screen terminal, or to other electronic devices, industrial transmission systems, or drawer slides of household or office equipment such as desks and computer tables, or the sliding mechanism 233 can be used as an independent product, and the present application does not make specific restrictions on this.

[0176] 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.

[0177] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A sliding mechanism, characterized in that: include: A slide rail, wherein the extending direction of the slide rail is a first direction; A sliding member, wherein the sliding member is slidably matched with the slide rail; A damping assembly, the damping assembly comprising a first elastic structure, a second elastic structure, a first concave-convex surface area and a second concave-convex surface area; wherein, One of the first elastic structure and the first concavo-convex surface area is provided on the slide rail and the other is provided on the sliding member, and the first elastic structure cooperates with the first concavo-convex surface area; one of the second elastic structure and the second concavo-convex surface area is provided on the slide rail and the other is provided on the sliding member, and the second elastic structure cooperates with the second concavo-convex surface area; The first concave-convex surface region and the second concave-convex surface region each include a plurality of concave portions arranged at intervals along the first direction, and a convex portion is formed between two adjacent concave portions; During the sliding of the sliding member relative to the slide rail, when the first elastic structure cooperates with the concave portion of the first concave-convex surface area, the second elastic structure cooperates with the convex portion of the second concave-convex surface area; When the first elastic structure cooperates with the convex portion of the first concave-convex surface area, the second elastic structure cooperates with the concave portion of the second concave-convex surface area.

2. The sliding mechanism according to claim 1, characterized in that: The distance between two adjacent concave portions in the first concave-convex surface area is equal to the distance between two adjacent concave portions in the second concave-convex surface area; the distance between two adjacent concave portions in the first concave-convex surface area and the second concave-convex surface area is a first distance D1, and the distance between the first elastic structure and the second elastic structure in the first direction is a second distance D2; The first concave-convex surface area and the second concave-convex surface area are aligned in the first direction, and the second distance D2 satisfies the condition: D2=(K+1 / 2)×D1; Wherein, K is a positive integer that is 0 or greater than 0.

3. The sliding mechanism according to claim 1, characterized in that: The slide rail is provided with a slide groove, the slide groove comprises a first inner surface, and the first inner surface is parallel to the first direction; At least a portion of the sliding member is slidably fitted in the sliding groove, and the at least a portion includes a first side surface, and the first side surface faces the first inner surface; The slide rail includes a first limiting portion, the first limiting portion is located on a side of the first inner surface away from the first side surface, and the first inner surface is formed on the first limiting portion; The first elastic structure and the second elastic structure are arranged on the first limiting portion, and the first concave-convex surface area and the second concave-convex surface area are arranged on the first side surface; or, The first elastic structure and the second elastic structure are disposed on the at least portion, and the first concave-convex surface area and the second concave-convex surface area are disposed on the first inner surface.

4. The sliding mechanism according to claim 3, characterized in that: The first concave-convex surface area and the second concave-convex surface area are arranged at intervals along a second direction, the second direction is perpendicular to the first direction, and the second direction is parallel to the first side surface; The first elastic structure and the second elastic structure are arranged at intervals along the second direction.

5. The sliding mechanism according to claim 4, characterized in that: There are multiple first elastic structures, and the multiple first elastic structures are arranged in sequence along the first direction; the multiple first elastic structures are all matched with the concave portion of the first concave-convex surface area, or the multiple first elastic structures are all matched with the convex portion of the first concave-convex surface area; There are multiple second elastic structures, and the multiple second elastic structures are arranged in sequence along the second direction; the multiple second elastic structures are all matched with the convex portion of the second concave-convex surface area, or the multiple second elastic structures are all matched with the concave portion of the second concave-convex surface area; During the sliding of the sliding member relative to the sliding rail, when multiple first elastic structures cooperate with the concave portion of the first concave-convex surface area, multiple second elastic structures cooperate with the convex portion of the second concave-convex surface area; when multiple first elastic structures cooperate with the convex portion of the first concave-convex surface area, multiple second elastic structures cooperate with the concave portion of the second concave-convex surface area.

6. The sliding mechanism according to any one of claims 3 to 5, characterized in that: The multiple concave surface areas in the first concave-convex surface area are respectively aligned with the multiple concave surface areas in the second concave-convex surface area and connected to form a whole concave surface area, and the multiple convex surface areas in the first concave-convex surface area are respectively aligned with the multiple convex surface areas in the second concave-convex surface area and connected to form a whole convex surface area.

7. The sliding mechanism according to claim 3, characterized in that: The first concave-convex surface area and the second concave-convex surface area are the same concave-convex surface area, and the first elastic structure and the second elastic structure are arranged in a row along the first direction.

8. The sliding mechanism according to claim 7, characterized in that: The number of the first elastic structure is at least one, the number of the second elastic structure is at least one, and the at least one first elastic structure and the at least one second elastic structure are alternately arranged in sequence along the first direction.

9. The sliding mechanism according to claim 3, characterized in that: The first elastic structure is provided on the first limiting portion, and the first concave-convex surface area is provided on the first side surface; The first elastic structure comprises: A base, the base is arranged at the first limiting portion, a sliding hole is arranged in the base, one end of the sliding hole is closed to form a closed end, the other end of the sliding hole is opened to form an open end, and the open end is located on a side of the closed end facing the first concave-convex surface area; A first pressing member, the first pressing member is disposed in the sliding hole and can slide along the sliding hole, and a portion of the first pressing member extends out from the opening end; A first elastic member is disposed in the sliding hole and between the closed end and the first pressing member, and a portion of the first pressing member extending out of the open end cooperates with the first concave-convex surface area.

10. The sliding mechanism according to claim 9, characterized in that: The first limiting portion is provided with a first threaded hole, and one end of the first threaded hole passes through the first inner surface; The outer periphery of the base is provided with a first external thread, the axial direction of the first external thread is parallel to the axial direction of the sliding hole, the base is accommodated in the first threaded hole, and the first external thread is threadedly matched with the first threaded hole.

11. The sliding mechanism according to claim 10, characterized in that: The base comprises: A base body, wherein the first external thread and the sliding hole are provided on the base body, and the base body is further provided with an inner hole, wherein the inner hole is located on a side of the closed end away from the open end, the inner hole and the sliding hole are coaxially arranged and interpenetrate each other, and an end of the inner hole away from the sliding hole passes through the base body; A fixing member is arranged in the inner hole.

12. The sliding mechanism according to claim 11, characterized in that: The inner hole is a second threaded hole, and the outer periphery of the fixing member is provided with a second external thread, and the second external thread is threadably matched with the second threaded hole.

13. The sliding mechanism according to claim 12, characterized in that: The first limiting portion further includes a first outer surface, the first outer surface is opposite to the first inner surface, and the first threaded hole passes through the first outer surface; An end surface of the fixing piece away from the sliding hole is provided with an operating groove, and the operating groove is a non-circular groove.

14. The sliding mechanism according to claim 13, characterized in that: The first external thread and the second external thread have opposite rotation directions.

15. The sliding mechanism according to any one of claims 9 to 14, characterized in that: The first pressing member is a push ball, a push pin or a push block.

16. The sliding mechanism according to claim 3, characterized in that: The first elastic structure is provided on the at least part, and the first concave-convex surface area is provided on the first inner surface; The at least part further includes a second side surface, the second side surface is opposite to the first side surface, and the slide groove further includes a second inner surface, the second inner surface is facing the second side surface; The first elastic structure comprises: A base, the base is arranged at the at least part, a sliding hole is arranged in the base, one end of the sliding hole is opened to form a first opening end, the other end of the sliding hole is opened to form a second opening end, the first opening end faces the first inner surface, and the second opening end faces the second inner surface; a second pressing member, the second pressing member being disposed in the sliding hole and being able to slide along the sliding hole, and a portion of the second pressing member extending out from the first opening end; a third pressing member, the third pressing member being disposed in the sliding hole and being able to slide along the sliding hole, and a portion of the third pressing member extending out from the second opening end; The second elastic member is arranged in the sliding hole and located between the second pressing member and the third pressing member, the second pressing member cooperates with the first concave-convex surface area, and the third pressing member cooperates with the second inner surface.

17. The sliding mechanism according to claim 16, characterized in that: The damping assembly further includes a third concave-convex surface area; The third concave-convex surface area is provided on the second inner surface, and the third concave-convex surface area includes a plurality of concave surface areas arranged at intervals along the first direction, and a convex surface area is formed between two adjacent concave surface areas; The distance between two adjacent concave portions in the third concave-convex surface region is equal to the distance between two adjacent concave portions in the first concave-convex surface region, and the third concave-convex surface region is aligned with the first concave-convex surface region in the first direction; The third pressing member cooperates with the third concave-convex surface area of ​​the second inner surface.

18. The sliding mechanism according to claim 1, characterized in that: The concave surface is in the form of a concave spherical surface, a concave arc surface, an inverted conical surface, or an inverted frustum surface with an inclined side surface and a flat bottom surface.

19. The sliding mechanism according to any one of claims 1 to 5, characterized in that: The surface roughness of the concave portion is greater than or equal to 0.2 and less than or equal to 0.6; The surface roughness of the convex portion is greater than or equal to 0.1 and less than or equal to 0.

3.

20. The sliding mechanism according to claim 1, characterized in that: The distance between two adjacent concave portions in the first concave-convex surface area is equal to the distance between two adjacent concave portions in the second concave-convex surface area; the distance between two adjacent concave portions in the first concave-convex surface area and the second concave-convex surface area is a first distance D1, and the distance between the first elastic structure and the second elastic structure in the first direction is a second distance D2; The second distance D2 satisfies the condition: D2=M×D1, the first concave-convex surface area and the second concave-convex surface area are arranged in a staggered manner in the first direction, and the staggered amount D between the first concave-convex surface area and the second concave-convex surface area d Satisfied conditions: D d =(N+1 / 2)×D1; Wherein, M and N are positive integers that are 0 or greater than 0.

21. An electronic device, characterized in that: include: first component; The second component; An active connection device is connected between the first component and the second component, and the active connection device includes the sliding mechanism described in any one of claims 1-20.

22. The electronic device according to claim 21, characterized in that: The electronic device is a folding screen terminal, and the folding screen terminal includes a first shell, a second shell, and a rotating shaft device connected between the first shell and the second shell; The first shell forms the first component, the second shell forms the second component, and the shaft device forms the movable connection device.

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