Foldable electronic device and hinge

Abstract

The application provides a foldable electronic device and a hinge, and relates to the technical field of electronic devices, and aims to solve the problems of complex hinge structure in the current foldable electronic device. The hinge provided by the application comprises a main shaft, a first folding assembly and a second folding assembly. The first folding assembly comprises a first rotating piece, a first main body and a first connecting rod. The first rotating piece is rotationally connected with the main shaft and is slidingly connected with the first main body. The second folding assembly comprises a second rotating piece, a second main body and a second connecting rod. The second rotating piece is rotationally connected with the main shaft and is slidingly connected with the second main body. In addition, one end of the first connecting rod is rotationally connected with the first main body, and the other end is rotationally connected with the second rotating piece. One end of the second connecting rod is rotationally connected with the second main body, and the other end is rotationally connected with the first rotating piece. The hinge provided by the application has a simple structure and uses a small number of components. When the hinge is folded or unfolded, the length of the hinge can be changed, so that the force acting on the flexible screen can be avoided.

Description

Technical Field

[0001] This application relates to the field of electronic device technology, and more particularly to a foldable electronic device and a hinge. Background Technology

[0002] At present, foldable screens are widely used in foldable electronic devices. Foldable screens are mainly achieved by combining flexible screens (organic light-emitting diodes, OLEDs) and hinges. Since flexible screens are relatively fragile components, they cannot withstand large pressure or tension during folding, otherwise bulging, creases or breakage may occur.

[0003] Currently, some manufacturers are adopting adjustable-length hinges to prevent flexible screens from being squeezed during folding. However, existing hinges have complex structures, use many components, and have high manufacturing costs. They also suffer from complex assembly processes and low assembly efficiency. Summary of the Invention

[0004] This application provides a foldable electronic device and hinge with a simple structure that can provide good support for flexible screens.

[0005] In a first aspect, this application provides a foldable electronic device, including a first housing, a second housing, a flexible screen, and a hinge. The hinge includes a main shaft, a first folding assembly, and a second folding assembly symmetrically arranged about the main shaft. The first folding assembly and the second folding assembly can rotate towards each other or away from each other, thereby realizing the folding function of the hinge. Specifically, the first folding assembly includes a first rotating member, a first main body, and a first connecting rod. A first end of the first rotating member is rotatably connected to the main shaft, and a second end of the first rotating member is slidably connected to the first main body. The second folding assembly includes a second rotating member, a second main body, and a second connecting rod. A first end of the second rotating member is rotatably connected to the main shaft, and a second end of the second rotating member is slidably connected to the second main body. Furthermore, a first end of the first connecting rod is rotatably connected to the first main body, and a second end of the first connecting rod is rotatably connected to the first end of the second rotating member. A first end of the second connecting rod is rotatably connected to the second main body, and a second end of the second connecting rod is rotatably connected to the first end of the first rotating member. Additionally, the first housing is fixedly connected to the first main body, and the second housing is fixedly connected to the second main body. A first portion of the flexible screen is fixedly connected to the first housing, and a second portion of the flexible screen is fixedly connected to the second housing.

[0006] The system comprises a first main body with a first support surface for supporting the flexible screen, and a second main body with a second support surface for supporting the flexible screen. A first housing has a first mounting surface, and a second housing has a second mounting surface. The side of the flexible screen opposite to the display surface is fixed to both the first and second mounting surfaces. When the hinge is in a flattened state, the first mounting surface, the second mounting surface, the first support surface, and the second support surface are all located on the same plane. Furthermore, adjacent edges of the first mounting surface and the first support surface are interlocked, as are adjacent edges of the second mounting surface and the second support surface. In practical applications, the first mounting surface, the second mounting surface, the first support surface, and the second support surface work together to provide good planar support for the flexible screen. When the flexible screen is touched or pressed, these surfaces effectively support it, preventing deformation and ensuring safety and user experience. Additionally, the interlocking of adjacent edges of the first mounting surface and the first support surface effectively avoids noticeable gaps between them, thus preventing a reduction in support for the flexible screen. Correspondingly, after the adjacent edges of the second mounting surface and the second support surface are spliced ​​together, it can effectively avoid obvious gaps between the second mounting surface and the second support surface, thus reducing the support effect on the flexible screen.

[0007] In use, forces can be applied to the first and second housings to cause them to rotate relative to each other. The first housing can drive a first rotating component via a first main body, and the second housing can drive a second rotating component via a second main body, thus achieving a foldable connection between the first and second housings. During the folding and unfolding of the foldable electronic device, the connection length between the first housing, hinge, and second housing will lengthen or shorten, thus preventing pressure or tension on the flexible screen and avoiding defects such as warping, creases, and breakage.

[0008] In one example, the main shaft may have a third support surface. When the hinge is in a flattened state, the first mounting surface, the first support surface, the third support surface, the second support surface, and the second mounting surface are sequentially spliced ​​together to form a support surface for supporting the flexible screen. That is, the first mounting surface, the second mounting surface, the first support surface, the second support surface, and the third support surface can all provide good planar support for the flexible screen, effectively ensuring the safety of the flexible screen and the user experience.

[0009] In specific setups, the flexible screen can be fixed to the third support surface, thus achieving a fixed connection between the flexible screen and the third support surface. Alternatively, the flexible screen can also be mounted on the third support surface, meaning the connection between the flexible screen and the third support surface does not necessarily have to be fixed.

[0010] In addition, the third support surface can be a plane, a raised arc surface, or a surface that is partially plane and partially curved.

[0011] For example, the side of the third support surface adjacent to the first support surface is a first curved surface, the side of the third support surface adjacent to the second support surface is a second curved surface, and a plane is provided between the first curved surface and the second curved surface.

[0012] In one example, the first rotating member and the first connecting rod in the first folding assembly can both be located on the side of the first body opposite to the first support surface, thereby preventing the first rotating member and the first connecting rod from protruding from the first support surface and affecting the support effect of the first support surface on the flexible screen.

[0013] Correspondingly, the second rotating component and the second connecting rod in the second folding assembly can both be located on the side of the second main body opposite to the second support surface, thereby preventing the second rotating component and the second connecting rod from protruding from the second support surface and affecting the support effect of the second support surface on the flexible screen.

[0014] In one example, the second end of the first connecting rod has a first pin hole, and the first end of the second rotating member has a second pin hole. The first connecting rod and the second rotating member are rotatably connected by pins passing through the first and second pin holes. The second end of the second connecting rod has a third pin hole, and the first end of the first rotating member has a fourth pin hole. The second connecting rod and the first rotating member are rotatably connected by pins passing through the third and fourth pin holes.

[0015] In one example, when the hinge transitions from an unfolded state to a folded state, the first and second folding components rotate towards each other. The first rotating member and the first main body rotate synchronously, as do the second rotating member and the second main body. The first rotating member drives the first link to move, which in turn moves the second main body closer to the main axis. The second rotating member then drives the second link to move, which in turn moves the first main body closer to the main axis, thereby shortening the hinge's length. When this hinge is applied to foldable electronic devices such as mobile phones, it avoids stretching or compressing forces on the flexible screen during folding, thus ensuring the safety and reliability of the flexible screen.

[0016] Furthermore, when the foldable electronic device transitions from a folded state to an unfolded state, the first and second folding components rotate in opposite directions, while the first rotating member and the first main body rotate synchronously, and the second rotating member and the second main body rotate synchronously. The first rotating member drives the first link to move, and the first link moves the second main body away from the main axis. The second rotating member drives the second link to move, and the second link moves the first main body away from the main axis, thereby increasing the length of the hinge. Alternatively, it can be understood that the foldable electronic device is an outward-folding type, with the flexible screen located on the outer side when the foldable electronic device is folded.

[0017] In the foldable electronic device provided in this application, the hinge folding function can be achieved by employing a main shaft, a first rotating component, a first main body, a first connecting rod, a second rotating component, a second main body, and a second connecting rod. Furthermore, the hinge length can change during the folding and unfolding process to avoid applying tensile or compressive forces to the flexible screen. In addition, the hinge uses fewer components and has a simpler structure, effectively reducing the manufacturing and assembly costs of the hinge.

[0018] In one example, the spindle may include a first shaft and a second shaft. The first shaft has a convex first cylindrical surface, and the second shaft has a concave second cylindrical surface. The first and second cylindrical surfaces are arranged facing each other, such that the first and second shafts enclose a first arcuate space. A first rotating member has a first arcuate arm at its first end, which is located within the first arcuate space between the first and second cylindrical surfaces. That is, the first end of the first rotating member is rotatably connected to the spindle through the first arcuate arm and the first arcuate space.

[0019] In a specific configuration, the first shaft may have a convex third cylindrical surface, and the second shaft may have a concave fourth cylindrical surface. The third and fourth cylindrical surfaces are arranged facing each other, so that the first and second shafts enclose a second arc-shaped space. The first end of the second rotating member has a second arc-shaped arm, which is located within the second arc-shaped space between the third and fourth cylindrical surfaces. That is, the first end of the second rotating member is rotatably connected to the main shaft through the second arc-shaped arm and the second arc-shaped space.

[0020] During the folding and unfolding of the foldable electronic device, the first arc-shaped arm rotates along the first arc-shaped space, and the second arc-shaped arm rotates along the second arc-shaped space.

[0021] Furthermore, during the folding process of the foldable electronic device, the first arc-shaped arm rotates out relative to the first arc-shaped space, and the second arc-shaped arm rotates out relative to the second arc-shaped space. During the unfolding process of the foldable electronic device, the first arc-shaped arm rotates in relative to the first arc-shaped space, and the second arc-shaped arm rotates in relative to the second arc-shaped space.

[0022] The spindle can be composed of a first shaft and a second shaft. During manufacturing, the first and second shafts can be fabricated separately, shortening the manufacturing time. During assembly, the first arc-shaped arm of the first rotating component can be positioned between the first and second cylindrical surfaces, and then the first and second shafts can be fixedly connected using screws or other fasteners, thus achieving the assembly of the first rotating component, the second rotating component, and the first and second shafts.

[0023] In specific configurations, the surface of the first shaft that faces away from the first cylindrical surface can be a plane, which facilitates the flattening of the hinge.

[0024] In addition, the surface of the first shaft that is away from the third cylindrical surface can be a plane, which is conducive to achieving a flat hinge design.

[0025] In one example, the first body may have a first groove, and the first rotating member may have a first sliding end. The first sliding end is slidably disposed in the first groove, thereby enabling a sliding connection between the first body and the first rotating member.

[0026] In addition, the second body may have a second slide groove, and the second rotating member may have a second sliding end. The second sliding end is slidably disposed in the second slide groove, thereby realizing a sliding connection between the second body and the second rotating member.

[0027] During the folding process of the foldable electronic device, the first sliding end slides into the first sliding groove, and the second sliding end slides into the second sliding groove. During the unfolding process of the foldable electronic device, the first sliding end slides out of the first sliding groove, and the second sliding end slides out of the second sliding groove.

[0028] In one example, the first folding assembly may further include a first hovering assembly. The first rotating member may have a first mounting groove, and the first hovering assembly is disposed within the first mounting groove. The first hovering assembly slides in contact with the first body to provide damping force when the first rotating member and the first body slide relative to each other.

[0029] The first mounting groove in the first rotating component for accommodating the first hovering component can improve the compactness of the first folding component and facilitate the miniaturization of the hinge design.

[0030] Additionally, the second folding assembly may also include a second hovering assembly. The second rotating member may have a second mounting groove, and the second hovering assembly is disposed within the second mounting groove. The second hovering assembly slides in contact with the second body to provide damping force when the second rotating member and the second body slide relative to each other.

[0031] The second mounting groove in the second rotating component for accommodating the second hovering component can improve the compactness of the second folding component and facilitate the miniaturization of the hinge design.

[0032] Understandably, when configuring the hinge, the first or second hovering component can be omitted, thereby reducing the number of hinge components used. At the same time, the hovering function can still be achieved through the first or second hovering component.

[0033] In one example, the foldable electronic device may further include a cover assembly comprising a first plate, a second plate, and a third plate. The first plate is fixedly connected to a first rotating component, the second plate is fixedly connected to a second rotating component, and the third plate is fixedly connected to a main shaft. By providing the cover assembly, components such as the first rotating component, the second rotating component, the first hovering component, or the second hovering component in the hinge can be effectively shielded and protected, effectively blocking foreign objects from the outside, thereby improving the safety of the hinge.

[0034] In one example, the hinge may also include a synchronization component, which is drive-connected to the first body, the main shaft, and the second body, for synchronizing the rotation of the first folding component and the second folding component in opposite directions.

[0035] In a specific configuration, the synchronization assembly may include a first synchronizing element and a second synchronizing element. The first synchronizing element is rotatably connected to the main shaft, and its rotation axis coincides with the rotation axis of the first rotating element; the second synchronizing element is rotatably connected to the main shaft, and its rotation axis coincides with the rotation axis of the second rotating element. The first synchronizing element has a first toothed portion and a first sliding portion, and the second synchronizing element has a second toothed portion and a second sliding portion. The first toothed portion and the second toothed portion mesh, the first sliding portion is slidably connected to the first main body, and the second sliding portion is slidably connected to the second main body.

[0036] By setting up a synchronization component, the smoothness of the first folding component and the second folding component during relative movement can be guaranteed, thereby improving the user experience and reliability of the hinge.

[0037] In specific configurations, the hinge may include one corresponding first folding component and one corresponding second folding component. Alternatively, it may include multiple corresponding first folding components and second folding components to improve the hinge's load-bearing capacity.

[0038] When the hinge includes multiple first folding components and multiple second folding components, the multiple first folding components and multiple second folding components are arranged along the length direction (axial direction) parallel to the main shaft.

[0039] In specific settings, the number of the first folding component and the second folding component can be reasonably set according to actual needs, and this application does not impose any restrictions on this.

[0040] Secondly, this application also provides a hinge that can be applied to foldable electronic devices with flexible displays. The hinge may include a main shaft, a first folding assembly and a second folding assembly symmetrically arranged about the main shaft. The first folding assembly and the second folding assembly can rotate towards each other or away from each other, thereby realizing the folding function of the hinge. Specifically, the first folding assembly includes a first rotating member, a first main body, and a first connecting rod. A first end of the first rotating member is rotatably connected to the main shaft, and a second end of the first rotating member is slidably connected to the first main body. The second folding assembly includes a second rotating member, a second main body, and a second connecting rod. A first end of the second rotating member is rotatably connected to the main shaft, and a second end of the second rotating member is slidably connected to the second main body. Additionally, a first end of the first connecting rod is rotatably connected to the first main body, and a second end of the first connecting rod is rotatably connected to the first end of the second rotating member. A first end of the second connecting rod is rotatably connected to the second main body, and a second end of the second connecting rod is rotatably connected to the first end of the first rotating member. The first main body has a first support surface for supporting the flexible screen, and the second main body has a second support surface for supporting the flexible screen. When the hinge is in a flattened state, the first support surface and the second support surface are located in the same plane. In practical applications, the first and second support surfaces can provide good planar support. When the flexible screen is touched or pressed, the first and second support surfaces can effectively support the flexible screen, thereby effectively preventing the flexible screen from deforming and ensuring the safety of the flexible screen and the user experience.

[0041] In one example, the main shaft can have a third support surface for supporting the flexible screen. When the hinge is in a flattened state, the first support surface, the third support surface, and the second support surface are sequentially spliced ​​together to form a support surface for supporting the flexible screen. That is, the first mounting surface, the second mounting surface, the first support surface, the second support surface, and the third support surface can all provide good planar support for the flexible screen, effectively ensuring the safety of the flexible screen and the user experience.

[0042] In specific setups, the flexible screen can be fixed to the third support surface, thus achieving a fixed connection between the flexible screen and the third support surface. Alternatively, the flexible screen can also be mounted on the third support surface, meaning the connection between the flexible screen and the third support surface does not necessarily have to be fixed.

[0043] In addition, the third support surface can be a plane, a raised arc surface, or a surface that is partially plane and partially curved.

[0044] For example, the side of the third support surface adjacent to the first support surface is a first curved surface, the side of the third support surface adjacent to the second support surface is a second curved surface, and a plane is provided between the first curved surface and the second curved surface.

[0045] In one example, the first rotating member and the first connecting rod in the first folding assembly can both be located on the side of the first body opposite to the first support surface, thereby preventing the first rotating member and the first connecting rod from protruding from the first support surface and affecting the support effect of the first support surface on the flexible screen.

[0046] Correspondingly, the second rotating component and the second connecting rod in the second folding assembly can both be located on the side of the second column opposite to the second support surface, thereby preventing the second rotating component and the second connecting rod from protruding from the second support surface and affecting the support effect of the second support surface on the flexible screen.

[0047] In one example, the second end of the first connecting rod has a first pin hole, and the first end of the second rotating member has a second pin hole. The first connecting rod and the second rotating member are rotatably connected by pins passing through the first and second pin holes. The second end of the second connecting rod has a third pin hole, and the first end of the first rotating member has a fourth pin hole. The second connecting rod and the first rotating member are rotatably connected by pins passing through the third and fourth pin holes.

[0048] In one example, when the hinge transitions from an unfolded state to a folded state, the first and second folding components rotate towards each other. The first rotating member and the first main body rotate synchronously, as do the second rotating member and the second main body. The first rotating member drives the first link to move, which in turn moves the second main body closer to the main axis. The second rotating member then drives the second link to move, which in turn moves the first main body closer to the main axis, thereby shortening the hinge's length. When this hinge is applied to foldable electronic devices such as mobile phones, it avoids stretching or compressing forces on the flexible screen during folding, thus ensuring the safety and reliability of the flexible screen.

[0049] Furthermore, when the hinge changes from a folded state to an unfolded state, the first folding assembly and the second folding assembly rotate in opposite directions, while the first rotating member and the first main body rotate synchronously, and the second rotating member and the second main body rotate synchronously. The first rotating member drives the first link to move, and the first link moves the second main body away from the main axis. The second rotating member drives the second link to move, and the second link moves the first main body away from the main axis, thereby increasing the length of the hinge.

[0050] The hinge provided in this application achieves its folding function by employing a main shaft, a first rotating component, a first main body, a first connecting rod, a second rotating component, a second main body, and a second connecting rod. Furthermore, the hinge's length can change during folding and unfolding to avoid applying tensile or compressive forces to the flexible screen. In addition, the hinge uses fewer components and has a simpler structure, effectively reducing manufacturing and assembly costs.

[0051] In one example, the spindle may include a first shaft and a second shaft. The first shaft has a convex first cylindrical surface, and the second shaft has a concave second cylindrical surface. The first and second cylindrical surfaces are arranged facing each other, such that the first and second shafts enclose a first arcuate space. A first rotating member has a first arcuate arm at its first end, which is located within the first arcuate space between the first and second cylindrical surfaces. That is, the first end of the first rotating member is rotatably connected to the spindle through the first arcuate arm and the first arcuate space.

[0052] In a specific configuration, the first shaft may have a convex third cylindrical surface, and the second shaft may have a concave fourth cylindrical surface. The third and fourth cylindrical surfaces are arranged facing each other, so that the first and second shafts enclose a second arc-shaped space. The first end of the second rotating member has a second arc-shaped arm, which is located within the second arc-shaped space between the third and fourth cylindrical surfaces. That is, the first end of the second rotating member is rotatably connected to the main shaft through the second arc-shaped arm and the second arc-shaped space.

[0053] During the folding and unfolding of the foldable electronic device, the first arc-shaped arm rotates along the first arc-shaped space, and the second arc-shaped arm rotates along the second arc-shaped space.

[0054] Furthermore, during the folding process of the foldable electronic device, the first arc-shaped arm rotates out relative to the first arc-shaped space, and the second arc-shaped arm rotates out relative to the second arc-shaped space. During the unfolding process of the foldable electronic device, the first arc-shaped arm rotates in relative to the first arc-shaped space, and the second arc-shaped arm rotates in relative to the second arc-shaped space.

[0055] The spindle can be composed of a first shaft and a second shaft. During manufacturing, the first and second shafts can be fabricated separately, shortening the manufacturing time. During assembly, the first arc-shaped arm of the first rotating component can be positioned between the first and second cylindrical surfaces, and then the first and second shafts can be fixedly connected using screws or other fasteners, thus achieving the assembly of the first rotating component, the second rotating component, and the first and second shafts.

[0056] In specific configurations, the surface of the first shaft that faces away from the first cylindrical surface can be a plane, which facilitates the flattening of the hinge.

[0057] In addition, the surface of the first shaft that is away from the third cylindrical surface can be a plane, which is conducive to achieving a flat hinge design.

[0058] By applying hinges to foldable electronic devices, the back of the flexible screen can be bonded to the two surfaces mentioned above. These two surfaces provide excellent support for the flexible screen. Furthermore, because these two surfaces are flat, the flatness of the flexible screen is ensured.

[0059] In one example, the first body may have a first groove, and the first rotating member may have a first sliding end. The first sliding end is slidably disposed in the first groove, thereby enabling a sliding connection between the first body and the first rotating member.

[0060] In addition, the second body may have a second slide groove, and the second rotating member may have a second sliding end. The second sliding end is slidably disposed in the second slide groove, thereby realizing a sliding connection between the second body and the second rotating member.

[0061] During the folding process of the foldable electronic device, the first sliding end slides into the first sliding groove, and the second sliding end slides into the second sliding groove. During the unfolding process of the foldable electronic device, the first sliding end slides out of the first sliding groove, and the second sliding end slides out of the second sliding groove.

[0062] In one example, the first folding assembly may further include a first hovering assembly. The first rotating member may have a first mounting groove, and the first hovering assembly is disposed within the first mounting groove. The first hovering assembly slides in contact with the first body to provide damping force when the first rotating member and the first body slide relative to each other.

[0063] The first mounting groove in the first rotating component for accommodating the first hovering component can improve the compactness of the first folding component and facilitate the miniaturization of the hinge design.

[0064] Additionally, the second folding assembly may also include a second hovering assembly. The second rotating member may have a second mounting groove, and the second hovering assembly is disposed within the second mounting groove. The second hovering assembly slides in contact with the second body to provide damping force when the second rotating member and the second body slide relative to each other.

[0065] The second mounting groove in the second rotating component for accommodating the second hovering component can improve the compactness of the second folding component and facilitate the miniaturization of the hinge design.

[0066] Understandably, when configuring the hinge, the first or second hovering component can be omitted, thereby reducing the number of hinge components used. At the same time, the hovering function can still be achieved through the first or second hovering component.

[0067] In one example, the hinge may further include a cover plate assembly, which includes a first plate, a second plate, and a third plate. The first plate is fixedly connected to a first main body, the second plate is fixedly connected to a second main body, and the third plate is fixedly connected to a main shaft. By providing the cover plate assembly, components such as the first rotating component, the second rotating component, the first hovering component, or the second hovering component in the hinge can be effectively shielded and protected, effectively blocking foreign objects from the outside, thereby improving the safety of the hinge in use.

[0068] In one example, the hinge may also include a synchronization component, which is drive-connected to the first body, the main shaft, and the second body, for synchronizing the rotation of the first folding component and the second folding component in opposite directions.

[0069] In a specific configuration, the synchronization assembly may include a first synchronizing element and a second synchronizing element. The first synchronizing element is rotatably connected to the main shaft, and its rotation axis coincides with the rotation axis of the first rotating element; the second synchronizing element is rotatably connected to the main shaft, and its rotation axis coincides with the rotation axis of the second rotating element. The first synchronizing element has a first toothed portion and a first sliding portion, and the second synchronizing element has a second toothed portion and a second sliding portion. The first toothed portion and the second toothed portion mesh, the first sliding portion is slidably connected to the first main body, and the second sliding portion is slidably connected to the second main body.

[0070] By setting up a synchronization component, the smoothness of the first folding component and the second folding component during relative movement can be guaranteed, thereby improving the user experience and reliability of the hinge.

[0071] In specific configurations, the hinge may include one corresponding first folding component and one corresponding second folding component. Alternatively, it may include multiple corresponding first folding components and second folding components to improve the hinge's load-bearing capacity.

[0072] When the hinge includes multiple first folding components and multiple second folding components, the multiple first folding components and multiple second folding components are arranged along the length direction (axial direction) parallel to the main shaft.

[0073] In specific settings, the number of the first folding component and the second folding component can be reasonably set according to actual needs, and this application does not impose any restrictions on this. Attached Figure Description

[0074] Figure 1 A structural diagram of a foldable electronic device in a flattened state, provided as an embodiment of this application;

[0075] Figure 2 This is a schematic diagram of the structure of a foldable electronic device when it is fully folded, as provided in an embodiment of this application.

[0076] Figure 3 This application provides a schematic diagram of the structure of a hinge in a flattened state according to an embodiment of the present application.

[0077] Figure 4 A schematic diagram of a hinge in a fully folded state is provided as an embodiment of this application;

[0078] Figure 5 for Figure 3 A partial structural diagram of part A in the middle;

[0079] Figure 6 A schematic diagram of a structure from another perspective when a hinge is in a flattened state, provided as an embodiment of this application;

[0080] Figure 7 for Figure 6 A partial structural diagram of part B;

[0081] Figure 8 This is an exploded structural diagram of a portion of a hinge provided in an embodiment of this application;

[0082] Figure 9 This is an exploded structural diagram of a portion of a hinge provided in an embodiment of this application;

[0083] Figure 10 A partial cross-sectional structural diagram of a hinge provided in an embodiment of this application;

[0084] Figure 11 An exploded view of a first hovering component provided in an embodiment of this application;

[0085] Figure 12 This is an exploded structural diagram of a portion of a hinge provided in an embodiment of this application;

[0086] Figure 13 A schematic diagram of another hinge in a flattened state, provided as an embodiment of this application;

[0087] Figure 14 A structural diagram of a foldable electronic device in a flattened state, provided as an embodiment of this application;

[0088] Figure 15 for Figure 14 A partial structural diagram of section C;

[0089] Figure 16 A structural diagram of a foldable electronic device in a flattened state, provided as an embodiment of this application;

[0090] Figure 17 This is a partial cross-sectional structural diagram of a foldable electronic device in a flattened state, provided as an embodiment of this application.

[0091] Figure 18 This is a partial cross-sectional structural diagram of a foldable electronic device when it is fully folded, as provided in an embodiment of this application. Detailed Implementation

[0092] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.

[0093] To facilitate understanding of the hinge provided in the embodiments of this application, its application scenarios will be introduced first below.

[0094] The hinge provided in this application embodiment can be applied to foldable electronic devices. Specifically, foldable electronic devices are electronic devices whose shape can be changed by folding, rotating, etc. Under different usage conditions, users can fold and unfold foldable electronic devices to meet different user needs.

[0095] When users need to carry foldable electronic devices with them, they can fold them to reduce their size and improve portability; when using foldable electronic devices, users can unfold them to provide a larger display and operating area, thereby improving ease of use. In practical applications, foldable electronic devices can be categorized in various ways, such as mobile phones, tablets, laptops, and e-readers.

[0096] like Figure 1 As shown, taking a mobile phone as an example, the mobile phone may include a first housing 101 and a second housing 102 connected by a hinge 10. Under the action of the hinge 10, the first housing 101 and the second housing 102 can perform relative rotation, movement, and other actions. A flexible screen 103 (such as an OLED screen) can be disposed on the surface of the first housing 101 and the second housing 102. Figure 1 As shown, when the phone is unfolded, the flexible screen 103 can provide a larger display area and operating area to improve usability. Figure 2 As shown, when the phone is folded, the flexible screen 103 can be located on the outer surface of the phone, thereby reducing the phone's area and improving its portability.

[0097] When the phone is flattened, the flexible screen 103 also flattens out, providing a larger display and touch area. In actual use, the flexible screen 103 is subject to touch or pressure from hands; therefore, appropriate components are needed to provide effective planar support for the flexible screen 103 to prevent deformation or cracking. In current mobile phones, some hinges 10 do not provide effective support for the flexible screen 103, thus reducing its reliability. Alternatively, some current hinges 10 require additional support plates or other components to provide adequate support, resulting in complex structures and a large number of parts.

[0098] Therefore, this application provides a hinge 10 with a simple structure that can effectively support the flexible screen.

[0099] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0100] The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” and “the” are intended to also include expressions such as “one or more,” unless the context clearly indicates otherwise. It should also be understood that in the following embodiments of this application, “at least one” means one, two, or more.

[0101] References to "one embodiment" and similar terms used in this specification mean that one or more embodiments of this application include a particular feature, structure, or characteristic described in connection with that embodiment. Therefore, phrases such as "in one embodiment," "in some embodiments," and "in other embodiments" appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "having," and variations thereof mean "including, but not limited to," unless otherwise specifically emphasized.

[0102] like Figure 3 and Figure 4 As shown, in one example provided in this application, the hinge 10 may include a main shaft 11, a first folding assembly 12 and a second folding assembly 13 symmetrically arranged about the main shaft 11. The first folding assembly 12 and the second folding assembly 13 may rotate toward each other or away from each other, thereby realizing the folding function of the hinge 10.

[0103] Please refer to the following: Figure 3 and Figure 5 Specifically, the first folding assembly 12 includes a first rotating member 121, a first main body 122, and a first connecting rod 123. The first rotating member 121 is rotatably connected to the main shaft 11 and slidably connected to the first main body 122. The second folding assembly 13 includes a second rotating member 131, a second main body 132, and a second connecting rod 133. The second rotating member 131 is rotatably connected to the main shaft 11 and slidably connected to the second main body 132. Furthermore, one end of the first connecting rod 123 is rotatably connected to the first main body 122, and the other end is rotatably connected to the second rotating member 131. The other end of the second connecting rod 133 is rotatably connected to the second main body 132 and the first rotating member 121.

[0104] like Figure 6 and Figure 7 As shown, hinge 10 is in a flattened state at this time. The first body 122 has a first support surface 1220, and the second body 132 has a second support surface 1320. When hinge 10 is in a flattened state, the first support surface 1220 and the second support surface 1320 are located on the same plane. In practical applications, the first support surface 1220 and the second support surface 1320 can provide good planar support. When the flexible screen is touched or pressed, the first support surface 1220 and the second support surface 1320 can effectively support the flexible screen, thereby effectively preventing deformation of the flexible screen and effectively ensuring the safety of the flexible screen and the user experience. It is understood that, considering factors such as dimensional accuracy errors, the first support surface 1220 and the second support surface 1320 being on the same plane refers to being on an approximate plane, not an absolutely identical plane.

[0105] Furthermore, considering that the main shaft 11 is located between the first main body 122 and the second main body 132, in order to enable the hinge 10 to provide better support for the flexible screen, in the example provided in this application, the main shaft 11 may have a third support surface 110. When the hinge 10 is in a flattened state, the first support surface 1220, the second support surface 1320, and the third support surface 110 are all located on the same plane. That is, the first support surface 1220, the second support surface 1320, and the third support surface 110 can all provide good planar support for the flexible screen, effectively ensuring the safety of the flexible screen and the user experience. Alternatively, it can be understood that, to a certain extent, the third support surface 110 can connect the first support surface 1220 and the second support surface 1320, thereby forming a more continuous support plane.

[0106] In specific configurations, the third support surface 110 can be a plane or a curved surface with a small curvature. Alternatively, the third support surface 110 can be a surface that is partially planar and partially curved. In practical applications, the shape of the third support surface 110 can be adjusted according to actual needs, which will not be elaborated here.

[0107] In addition, such as Figure 1 and Figure 2 As shown, in an outward-folding phone, the hinge 10 is located inside the flexible screen 103. During the folding and unfolding of the phone, the rotation radius of the hinge 10 is smaller than the rotation radius of the flexible screen 103. In the hinge 10 provided in this embodiment, to avoid the hinge 10 stretching or compressing the flexible screen 103, the hinge 10 can change its length during the folding and unfolding of the phone. Specifically, during the folding process, the length of the hinge 10 can be shortened, thereby avoiding a stretching force on the flexible screen 103; during the unfolding process, the length of the hinge 10 can be lengthened, thereby avoiding a compressive force on the flexible screen 103.

[0108] like Figure 3 and Figure 5 As shown, in the hinge 10 provided in this application, the first rotating member 121 and the second rotating member 131 can rotate relative to the main shaft 11. Furthermore, the first body 122 is slidably connected to the first rotating member 121, and the second body 132 is slidably connected to the second rotating member 131. Therefore, when the first rotating member 121 and the second rotating member 131 rotate relative to each other, the first body 122 and the second body 132 can slide. When the first body 122 and the second body 132 slide, the connection length between the first body 122, the main shaft 11, and the second body 132 can be extended or shortened.

[0109] Specifically, such as Figures 3 to 5 As shown. When hinge 10 changes from the unfolded state to the folded state, the first folding assembly 12 and the second folding assembly 13 rotate towards each other. The first rotating member 121 and the first main body 122 rotate synchronously, and the second rotating member 131 and the second main body 132 rotate synchronously. The first rotating member 121 is used to bring the second main body 132 closer to the main shaft 11 via the first connecting rod 123, and the second rotating member 131 is used to bring the first main body 122 closer to the main shaft 11 via the second connecting rod 133, thereby shortening the length of hinge 10. It should be noted that "rotation towards each other" means that both components rotate in the direction of each other. For example, "rotation towards each other" means that the first folding assembly 12 rotates towards the direction of the second folding assembly 13, and the second folding assembly 13 rotates towards the direction of the first folding assembly 12.

[0110] When hinge 10 changes from a folded state to an unfolded state, the first folding assembly 12 and the second folding assembly 13 rotate in opposite directions. The first rotating member 121 and the first main body 122 rotate synchronously, and the second rotating member 131 and the second main body 132 rotate synchronously. The first rotating member 121 is used to move the second main body 132 away from the main shaft 11 via the first connecting rod 123, and the second rotating member 131 is used to move the first main body 122 away from the main shaft 11 via the second connecting rod 133, thereby increasing the length of hinge 10. It should be noted that opposite rotation means that the two components rotate in opposite directions. For example, opposite rotation of the first folding assembly 12 and the second folding assembly 13 means that the first folding assembly 12 rotates in the opposite direction to the second folding assembly 13, and the second folding assembly 13 rotates in the opposite direction to the first folding assembly 12.

[0111] The hinge 10 provided in this application achieves its folding function by employing a main shaft 11, a first rotating member 121, a first main body 122, a first connecting rod 123, a second rotating member 131, a second main body 132, and a second connecting rod 133. Furthermore, the length of the hinge 10 can change during folding and unfolding to avoid applying tensile or compressive forces to the flexible screen. In addition, the hinge 10 uses fewer components and has a simpler structure, effectively reducing manufacturing and assembly costs.

[0112] Alternatively, it can be understood that in some current hinges (10), to achieve the function of length change during folding and unfolding, multiple central axes and rotating components that cooperate with these central axes are required. This results in a large number of parts, complex assembly processes, and disadvantages such as high manufacturing costs and complex assembly techniques.

[0113] The specific structure of the hinge 10 provided in the embodiments of this application will be described in detail below.

[0114] like Figure 3 , Figure 4 and Figure 6 As shown in the example provided in this application, three first folding components 12 and three second folding components 13 are provided along the length direction of the main axis 11, wherein the structure of each first folding component 12 is basically the same. Correspondingly, the structure of each second folding component 13 is also basically the same. The first folding components 12 and the second folding components 13 are arranged in a one-to-one correspondence. In the example provided in this application, by using multiple first folding components 12 and second folding components 13, the structural strength and stability of the hinge 10 during use can be effectively improved.

[0115] In addition, such as Figure 6 and Figure 7 As shown, each first folding assembly 12 has a first support surface 1220, and the first support surfaces 1220 of multiple first folding assemblies 12 are all located on the same plane. Correspondingly, each second folding assembly 13 has a second support surface 1320, and the second support surfaces 1320 of multiple second folding assemblies 123 are all located on the same plane. Furthermore, the multiple first folding assemblies 12 can be fixedly connected by screws or welding, and the multiple second folding assemblies 13 can also be fixedly connected by screws or welding; this application does not impose any limitations on this.

[0116] Of course, in other examples, the hinge 10 may also include a first folding component 12 and a second folding component 13. Alternatively, it may include two or more first folding components 12 and two or more second folding components 13. This application does not limit the number of first folding components 12 and second folding components 13.

[0117] To facilitate understanding of the technical solution of this application, the following will use the first folding component 12 and the second folding component 13 as examples for specific explanation.

[0118] In practical applications, the structure of spindle 11 can be varied.

[0119] For example, such as Figure 8 and Figure 9 As shown, the spindle 11 may include a first shaft 111 and a second shaft 112.

[0120] In a specific configuration, the first rotating component 121 and the main shaft 11 can be connected by a cylindrical surface structure.

[0121] Specifically, the first shaft 111 has an outwardly convex first cylindrical surface 1111, and the second shaft 112 has an inwardly concave second cylindrical surface 1121, with the first cylindrical surface 1111 and the second cylindrical surface 1121 facing each other.

[0122] like Figure 9 and Figure 10As shown, the first rotating member 121 has a first arc-shaped arm 1211, which is located within the first arc-shaped space formed by the first cylindrical surface 1111 and the second cylindrical surface 1121. Furthermore, the concave surface (not shown in the figure) of the first arc-shaped arm 1211 is in contact with the first cylindrical surface 1111, and the convex surface (not shown in the figure) of the first arc-shaped arm 1211 is in contact with the second cylindrical surface 1121, thereby achieving a rotational connection between the first rotating member 121 and the main shaft 11. The axes of the first arc-shaped arm 1211, the first cylindrical surface 1111, and the second cylindrical surface 1121 all coincide. It should be noted that the arc-shaped arm refers to the portion of the ring that is truncated in a fan shape, and both the concave and convex surfaces of the arc-shaped arm are cylindrical surfaces.

[0123] In actual use, the first arc-shaped arm 1211 of the first rotating member 121 is restricted within the first arc-shaped space formed by the first cylindrical surface 1111 and the second cylindrical surface 1121 of the main shaft 11, so that the first arc-shaped arm 1211 of the first rotating member 121 can only rotate within the first arc-shaped space formed by the first cylindrical surface 1111 and the second cylindrical surface 1121.

[0124] In addition, such as Figure 9 As shown in the example provided in this application, in order to prevent the first rotating member 121 from sliding axially on the main shaft 11, the main shaft 11 also has a stop surface 113a and a stop surface 113b disposed opposite to each other. The stop surface 113a is used to mate with the end face 1211a of the first arc-shaped arm, and the stop surface 113b is used to mate with the end face 1211b of the first arc-shaped arm, thereby preventing the first rotating member 121 from sliding axially on the main shaft 11.

[0125] In the example provided in this application, a portion of the stop surface 113a is located in the first shaft 111, and another portion is located in the second shaft 112. A portion of the stop surface 113b is located in the first shaft 111, and another portion is located in the second shaft 112. It is understood that in other examples, the stop surface 113a may be entirely located in the first shaft 111, or the stop surface 113a may be entirely located in the second shaft 112. Correspondingly, the stop surface 113b may also be entirely located in the first shaft 111, or the stop surface 113b may be entirely located in the second shaft 112. Alternatively, in other examples, other structures may be used to prevent the first rotating member 121 from sliding axially, and this application does not impose specific limitations on this.

[0126] In addition, such as Figure 9As shown in the example provided in this application, the structures of the first rotating member 121 and the second rotating member 131 are basically the same. The structures in the main shaft 11 for connecting with the first rotating member 121 and the structures in the main shaft 11 for connecting with the second rotating member 131 are also basically the same.

[0127] In simple terms, the second rotating member 131 has a second arc-shaped arm 1311, which is located within the two arc-shaped spaces formed by the third cylindrical surface 1112 and the fourth cylindrical surface 1122. Furthermore, the concave surface (not shown in the figure) of the second arc-shaped arm 1311 is in contact with the third cylindrical surface 1112, and the convex surface (not shown in the figure) of the second arc-shaped arm 1311 is in contact with the fourth cylindrical surface 1122, thereby achieving a rotational connection between the second rotating member 131 and the main shaft 11. The axes of the second arc-shaped arm 1311, the third cylindrical surface 1112, and the fourth cylindrical surface 1122 all coincide.

[0128] In addition, the main shaft 11 also has a stop surface 114a and a stop surface 114b arranged opposite to each other. The stop surface 114a is used to fit against the end face 1311a of the second arc-shaped arm, and the stop surface 114b is used to fit against the end face 1311b of the second arc-shaped arm, thereby preventing the first rotating member 121 from sliding in the axial direction of the main shaft 11.

[0129] Please see Figure 10 At this point, hinge 10 is in a flattened state. During the folding process of hinge 10, the first arc-shaped arm 1211 rotates out relative to the first arc-shaped space, and the second arc-shaped arm 1311 rotates out relative to the second arc-shaped space. The first arc-shaped arm 1211 rotating out relative to the first arc-shaped space can be understood as the portion of the first arc-shaped arm 1211 within the second arc-shaped space decreasing; the second arc-shaped arm 1311 rotating out relative to the second arc-shaped space can be understood as the portion of the second arc-shaped arm 1311 within the second arc-shaped space decreasing. From Figure 10 The first arc-shaped arm 1211 rotates counterclockwise.

[0130] During the unfolding process of hinge 10, the first arc-shaped arm 1211 rotates into the first arc-shaped space, and the second arc-shaped arm 1311 rotates into the second arc-shaped space. Here, "rotating into" means that the first arc-shaped arm 1211 gradually rotates into the second arc-shaped space, and the portion of the first arc-shaped arm 1211 in the second arc-shaped space increases.

[0131] In the example provided in this application, a portion of the stop surface 114a is located in the first shaft 111, and another portion is located in the second shaft 112. A portion of the stop surface 114b is located in the first shaft 111, and another portion is located in the second shaft 112. It is understood that in other examples, the stop surface 114a may be entirely located in the first shaft 111, or the stop surface 114a may be entirely located in the second shaft 112. Correspondingly, the stop surface 114b may also be entirely located in the first shaft 111, or the stop surface 114b may be entirely located in the second shaft 112. Alternatively, in other examples, other structures may be used to prevent the first rotating member 121 from sliding axially, and this application does not impose specific limitations on this.

[0132] In the example provided in this application, the first rotating member 121 and the second rotating member 131 have the same structure. Therefore, the first rotating member 121 and the second rotating member 131 can be interchanged, which can reduce the difficulty of assembly and also help to reduce the manufacturing process.

[0133] Furthermore, in the example provided in this application, the spindle 11 is composed of a first shaft 111 and a second shaft 112. During manufacturing, the first shaft 111 and the second shaft 112 can be manufactured separately, shortening the manufacturing time. During assembly, the first arc-shaped arm 1211 of the first rotating member 121 can be positioned between the first cylindrical surface 1111 and the second cylindrical surface 1121, and the second arc-shaped arm 1311 of the second rotating member 131 can be positioned between the third cylindrical surface 1112 and the fourth cylindrical surface 1122. Then, fasteners such as screws are used to fix the first shaft 111 and the second shaft 112 together, thereby achieving the assembly of the first rotating member 121, the second rotating member 131, the first shaft 111, and the second shaft 112.

[0134] Furthermore, in the example provided in this application, the first cylindrical surface 1111 is specifically a semi-cylindrical surface. That is, the surface 1113 of the first shaft 111 facing away from the first cylindrical surface 1111 is a plane. The third cylindrical surface 1112 is also a semi-cylindrical surface, that is, the surface 1114 of the first shaft 111 facing away from the third cylindrical surface 1112 is a plane. In the example provided in this application, setting surfaces 1113 and 1114 as planes facilitates the improvement of the flatness of the hinge 10. When the hinge 10 is in a flattened state, the hinge 10 can be a plane, which can improve the flatness of the hinge 10.

[0135] When hinge 10 is applied to foldable phones, the back of the flexible screen can fit against surfaces 1113 and 1114 when hinge 10 is in a flattened state, thereby providing effective support for the flexible screen and improving its flatness.

[0136] In addition, such as Figure 5 and Figure 9 As shown, in the example provided in this application, the axes of the first cylindrical surface 1111 and the third cylindrical surface 1112 do not coincide. The central axis of the first cylindrical surface 1111 can be referred to as the first central axis, and the central axis of the third cylindrical surface 1112 can be referred to as the second central axis. The first central axis can serve as the rotation axis of the first folding assembly 12, allowing the first rotating member 121 of the first folding assembly 12 to rotate around the first central axis. The second central axis can serve as the rotation axis of the second folding assembly 13, allowing the second rotating member 131 of the second folding assembly 13 to rotate around the second central axis. In the example provided in this application, the first and second central axes are two parallel central axes with a certain degree of overlap. Therefore, during the folding or unfolding process of the hinge 10, the first folding assembly 12 and the second folding assembly 13 have sufficient rotational space, avoiding interference between them. Furthermore, in the example provided in this application, two central axes can be provided using a single main shaft 11, thus reducing the number of components used.

[0137] It is understandable that in other examples, the spindle 11 and the first rotating member 121 can also be connected by other structures, and correspondingly, the spindle 11 and the second rotating member 131 can also be connected by other structures, which will not be elaborated here.

[0138] In addition, such as Figure 8 As shown, in the example provided in this application, the first body 122 and the first rotating member 121 are slidably connected by a structure of a groove and a sliding end.

[0139] Specifically, the first main body 122 has a first sliding groove 1221, and the first rotating member 121 has a first sliding end 1212, which is slidably disposed in the first sliding groove 1221.

[0140] It is understandable that in other examples, the positions of the first sliding groove 1221 and the first sliding end 1212 can be interchanged. For example, the first sliding end 1212 can be located in the first body 122, and the first sliding groove 1221 can be located in the first rotating member 121, which will not be elaborated here.

[0141] In addition, such as Figure 8 As shown, the second main body 132 and the second rotating member 131 are also slidably connected through the structure of the sliding groove and the sliding end.

[0142] Specifically, the second main body 132 has a second sliding groove 1321, and the second rotating member 131 has a second sliding end 1312, which is slidably disposed in the second sliding groove 1321.

[0143] During the folding process, the first sliding end 1212 slides into the first sliding groove 1221, and the second sliding end 1312 slides into the second sliding groove 1321. The sliding of the first sliding end 1212 into the first sliding groove 1221 can be understood as an increase in the portion of the first sliding end 1212 within the first sliding groove 1221; similarly, the sliding of the second sliding end 1312 into the second sliding groove 1321 can be understood as an increase in the portion of the second sliding end 1312 within the second sliding groove 1321.

[0144] During the unfolding process, the first sliding end 1212 slides out relative to the first sliding groove 1221, and the second sliding end 1312 slides out relative to the second sliding groove 1321. The sliding out of the first sliding end 1212 relative to the first sliding groove 1221 can be understood as a reduction in the portion of the first sliding end 1212 within the first sliding groove 1221; similarly, the sliding out of the second sliding end 1312 relative to the second sliding groove 1321 can be understood as a reduction in the portion of the second sliding end 1312 within the second sliding groove 1321.

[0145] It is understandable that in other examples, the positions of the second sliding groove 1321 and the second sliding end 1312 can be interchanged. For example, the second sliding end 1312 can be located in the second body 132, and the second sliding groove 1321 can be located in the second rotating member 131, which will not be elaborated here.

[0146] Alternatively, in other examples, the first body 122 and the first rotating member 121 can also be connected by other structural forms to achieve a sliding connection; correspondingly, the second body 132 and the second rotating member 131 can also be connected by other structural forms to achieve a sliding connection, and this application does not limit this.

[0147] In addition, such as Figure 8 As shown in the example provided in this application, the first folding assembly 12 further includes a first hovering assembly 14, thereby enabling a hovering function at the folding angle. The first rotating member 121 has a first mounting groove 1213, and the first hovering assembly 14 is disposed within the first mounting groove 1213. The first hovering assembly 14 slides in contact with the first body 122 to provide damping force when the first rotating member 121 and the first body 122 slide relative to each other.

[0148] In the example provided in this application, a first mounting groove 1213 for accommodating the first hovering component 14 is provided in the first rotating component 121, which can improve the compactness of the first folding component 12 and facilitate the miniaturization design of the hinge 10.

[0149] When configuring the first hovering component 14, the structure type of the first hovering component 14 can be varied.

[0150] For example, such as Figure 11 As shown in the example provided in this application, the first hovering component 14 includes a hovering element 141, a hovering element 142, a first spring 143, and a second spring 144.

[0151] like Figure 11 As shown, the hovering member 141 has a protrusion 1411, a positioning post 1412, and a positioning post 1413. The hovering member 142 has a protrusion 1421, a positioning post 1422, and a positioning post 1423. One end of the first spring 143 is sleeved around the positioning post 1412, and the other end is sleeved around the positioning post 1422. One end of the second spring 144 is sleeved around the positioning post 1413, and the other end is sleeved around the positioning post 1423.

[0152] like Figure 8 and Figure 11 As shown, under the elastic force of the first spring 143 and the second spring 144, the protrusion 1411 of the hovering member 141 and the protrusion 1421 of the hovering member 142 can elastically abut against the inner wall of the first groove 1221.

[0153] When the first body 122 and the first rotating member 121 slide relative to each other, the first rotating member 121 can drive the first suspension assembly 14 to move synchronously, so that the protrusions 1411 and 1421 rub against the inner wall of the first groove 1221. Under the action of friction, the hinge 10 can provide damping force when folding or unfolding.

[0154] In addition, the inner wall of the first groove 1221 also has a recess (not shown in the figure). When the protrusions 1411 and 1421 slide into the recess, the sliding position between the first rotating member 121 and the first body 122 can be maintained, thereby realizing the hovering function of the hinge 10.

[0155] For example, when protrusions 1411 and 1421 slide into the recess, hinge 10 is in a flattened state, preventing the phone from being folded arbitrarily and improving the user experience. Alternatively, when protrusions 1411 and 1421 slide into the recess, hinge 10 is in a fully folded state, preventing the phone from being unfolded arbitrarily and ensuring the phone's safety.

[0156] In practical applications, multiple recesses can be provided along the length of the first groove 1221 to enable the hinge 10 to hover at multiple different angles.

[0157] Of course, in other examples, the first hover component 14 can also adopt the more commonly used type, which will not be elaborated here.

[0158] In addition, such as Figure 8 As shown in the example provided in this application, the hinge 10 may also include a second hovering component 15, wherein the second hovering component 15 and the first hovering component 14 have essentially the same structure.

[0159] In simple terms, the second rotating member 131 has a second mounting groove 1313, and the second hovering assembly 15 is disposed within the second mounting groove 1313. The second hovering assembly 15 slides in contact with the second body 132 to provide damping force when the second rotating member 131 and the second body 132 slide relative to each other.

[0160] In the example provided in this application, the second hovering assembly 15 includes a hovering member 151, a hovering member 152, a first spring 153, and a second spring 154. The second hovering assembly 15 has a structure substantially the same as the first hovering assembly 14; therefore, the specific structure of the second hovering assembly 15 will be described in detail here.

[0161] In addition, in specific applications, the first connecting rod 123 can be rotatably connected to the first main body 122 and the second rotating member 131 in a variety of ways.

[0162] For example, such as Figure 8 and Figure 12 As shown, in one example provided in this application, one end of the first connecting rod 123 has a pin hole 1231, the first body 122 has a pin hole 1222, and the pin shaft 16 is fixed inside the pin hole 1231 and the pin hole 1222, thereby realizing the rotational connection between the first connecting rod 123 and the first body 122.

[0163] In addition, the other end of the first connecting rod 123 has a pin hole 1232, the second rotating member 131 has a pin hole 1314, and the pin shaft 17 is fixed inside the pin hole 1232 and the pin hole 1314, thereby realizing the rotational connection between the first connecting rod 123 and the second rotating member 131.

[0164] It is understandable that in other examples, the first link 123, the first body 122, and the second rotating member 131 can also be connected by a commonly used structure, which will not be elaborated here.

[0165] Furthermore, in the example provided in this application, the structures of the first link 123 and the second link 133 are basically the same. The connection structure between the second link 133 and the second body 132 and the first rotating member 121 is basically the same as the connection structure between the first link 123 and the first body 122 and the second rotating member 131 described above, and will not be repeated here.

[0166] In the example provided in this application, since the first link 123 of the first folding assembly 12 is rotatably connected to the second rotating member 131 in the second folding assembly 13, and the second link 133 of the second folding assembly 13 is rotatably connected to the first rotating member 121 in the first folding assembly 12, the first folding assembly 12 and the second folding assembly 13 can move synchronously when the hinge 10 is folded or unfolded.

[0167] In addition, such as Figure 8 As shown, in one example provided in this application, the hinge 10 also includes a synchronization component. When the hinge 10 is folded or unfolded, the synchronization component can enhance the synchronization between the first folding component 12 and the second folding component 13, ensuring the smoothness of the hinge 10 during folding or unfolding.

[0168] Specifically, the synchronization assembly may include a first synchronization element 181 and a second synchronization element 182. The first synchronization element 181 is rotatably connected to the main shaft 11, and the rotation axis of the first synchronization element 181 coincides with the rotation axis of the first rotating element 121. The second synchronization element 182 is rotatably connected to the main shaft 11, and the rotation axis of the second synchronization element 182 coincides with the rotation axis of the second rotating element 131. The first synchronization element 181 has a first toothed portion 1811 and a first sliding end 1812, and the second synchronization element 182 has a second toothed portion 1821 and a second sliding end 1822. The first toothed portion 1811 and the second toothed portion 1821 mesh, the first sliding end 1812 is slidably connected to a groove 1223 in the first body 122, and the second sliding end 1822 is slidably connected to a groove 1323 in the second body 132.

[0169] During the folding or unfolding of hinge 10, the meshing between the first toothed portion 1811 and the second toothed portion 1821 enables synchronized reverse rotation between the first synchronizing member 181 and the second synchronizing member 182. Furthermore, due to the good dimensional accuracy and force-bearing performance of the gear structure, the smoothness of hinge 10 during folding or unfolding is improved, thus enhancing the user experience. Synchronized reverse rotation refers to the two components rotating at the same speed but in opposite directions.

[0170] It is understood that in other examples, multiple synchronization components as described above can be set in hinge 10, and this application does not limit the number of synchronization components set.

[0171] In addition, such as Figure 13The diagram shows a structural schematic of the back side of the hinge 10 (e.g., the side facing away from the flexible screen). In one example provided in this application, the hinge 10 also includes a cover plate assembly 19. Specifically, the cover plate assembly 19 includes a first plate 191, a second plate 192, and a third plate 193. The first plate 191 is fixedly connected to the first rotating member 121, the second plate 192 is fixedly connected to the second rotating member 131, and the third plate 193 is fixedly connected to the main shaft 11.

[0172] By setting the cover plate assembly 19, some components in the hinge 10 (such as the first rotating component, the second rotating component, the first hovering component, or the second hovering component) can be effectively shielded and protected, and can effectively block foreign objects from the outside, thereby improving the safety of the hinge 10.

[0173] In addition, when the hinge 10 is applied to foldable electronic devices, the cover assembly 19 also helps to improve the integrity of the foldable electronic devices.

[0174] In addition, such as Figures 14 to 18 As shown in the illustration, this application also provides a foldable electronic device. Wherein, Figure 14 The image shown is a structural diagram of the front of a foldable electronic device without a flexible screen. Figure 16 This is a schematic diagram of the back of the foldable electronic device.

[0175] In the example provided in this application, the foldable electronic device includes a first housing 101 and a second housing 102, and a flexible screen 103 (such as an OLED screen) can be disposed on the surfaces of the first housing 101 and the second housing 102 (e.g., Figure 16 (the lower surface of the middle).

[0176] In addition, such as Figure 14 and Figure 15 As shown, the first housing 101 has a first mounting surface 1010, and the second housing 102 has a second mounting surface 1020. The back side of the flexible screen is attached to the first mounting surface 1010 and the second mounting surface 1020, thereby realizing a fixed connection between the flexible screen and the first housing 101 and the second housing 102.

[0177] When the hinge is in the flattened state, the first mounting surface 1010, the second mounting surface 1020, the first support surface 1220, the second support surface 1320, and the third support surface 110 are all located on the same plane. The adjacent edges of the first mounting surface 1010 and the first support surface 1220 are interlocked, and the adjacent edges of the second mounting surface 1020 and the second support surface 1320 are also interlocked. In other words, the first mounting surface 1010, the second mounting surface 1020, the first support surface 1220, and the second support surface 1320 all provide a good plane for the flexible screen. When the flexible screen is touched or pressed, the first mounting surface 1010, the second mounting surface 1020, the first support surface 1220, and the second support surface 1320 can all effectively support the flexible screen, thereby effectively preventing deformation and ensuring the safety of the flexible screen and the user experience. Furthermore, by splicing the adjacent edges of the first mounting surface 1010 and the first support surface 1220 together, significant gaps between them can be effectively avoided, thus preventing a reduction in the support effect on the flexible screen. Similarly, by splicing the adjacent edges of the second mounting surface 1020 and the second support surface 1320 together, significant gaps between them can be effectively avoided, thus preventing a reduction in the support effect on the flexible screen.

[0178] In specific configurations, the flexible screen 103 can be fixed to the third support surface 110 by means of adhesive bonding, thereby achieving a fixed connection between the flexible screen 103 and the third support surface 110. Alternatively, the flexible screen 103 can also be mounted on the third support surface 110, meaning that the connection between the flexible screen 103 and the third support surface 110 is not fixed, and the third support surface 110 may only serve to support the flexible screen 103.

[0179] Furthermore, in the example provided in this application, the first main body 122 is fixedly connected to the first housing 101. Therefore, during the folding and unfolding of the hinge 10, the relative position between the first support surface 1220 and the first mounting surface 1020 does not change, thus maintaining effective splicing and providing a continuous support plane for the flexible screen. Correspondingly, the second main body 132 is fixedly connected to the second housing 102. Therefore, during the folding and unfolding of the hinge 10, the relative position between the second support surface 1320 and the second mounting surface 1030 does not change, thus maintaining effective splicing and providing a continuous support plane for the flexible screen.

[0180] In addition, such as Figure 16As shown in the example provided in this application, the back side of the foldable electronic device can also be effectively spliced. Specifically, the first plate 191 in the cover assembly 19 is effectively spliced ​​with the first housing 101, and the second plate 192 is effectively spliced ​​with the second housing 102, thereby improving the integrity of the back of the foldable electronic device and preventing external dust and other impurities from entering the interior of the foldable electronic device.

[0181] Furthermore, during the folding and unfolding process of the foldable electronic device, sliding or other actions may occur between the first plate 191 and the first housing 101, and between the second plate 192 and the second housing 102. Therefore, as Figure 17 As shown, in the example provided in this application, the first housing 101 has a space 1011 for sliding the first plate 191, and the second housing 102 has a space 1021 for sliding the second plate 192.

[0182] like Figure 17 As shown, when the foldable electronic device is in a flattened state, a portion of the first plate 191 is located in space 1011, and a portion of the second plate 192 is located in space 1021.

[0183] like Figure 18 As shown, when the foldable electronic device is in a fully folded state, the first plate 191 almost fills the entire space 1011, and the second plate 192 almost fills the entire space 1021.

[0184] In summary, by setting up spaces 1011 and 1021, not only can the continuity between the first plate 191 and the first housing 101 and the continuity between the second plate 192 and the second housing 102 be improved, but also sufficient space can be provided for the first plate 191 and the second plate 192 to ensure the integrity and reliability of the foldable electronic device.

[0185] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included in this application. Therefore, the scope of protection of this application should be determined by the scope of protection of the claims.

Claims

1. A foldable electronic device, characterized in that, Includes a first housing, a second housing, a flexible screen, and a hinge; The hinge includes a main shaft, a first folding component, and a second folding component, wherein the first folding component and the second folding component are disposed on both sides of the main shaft; The first folding assembly includes a first rotating member, a first main body, and a first connecting rod; The first end of the first rotating member is rotatably connected to the main shaft, and the second end of the first rotating member is slidably connected to the first main body. The second folding assembly includes a second rotating member, a second body, and a second connecting rod; The first end of the second rotating component is rotatably connected to the main shaft, and the second end of the second rotating component is slidably connected to the second main body; The first end of the first connecting rod is rotatably connected to the first main body, and the second end of the first connecting rod is rotatably connected to the first end of the second rotating member. The first end of the second connecting rod is rotatably connected to the second main body, and the second end of the second connecting rod is rotatably connected to the first end of the first rotating member; The first housing is fixedly connected to the first main body, and the second housing is fixedly connected to the second main body; The first part of the flexible screen is fixedly connected to the first housing, and the second part of the flexible screen is fixedly connected to the second housing; The first main body has a first support surface for supporting the flexible screen, the second main body has a second support surface for supporting the flexible screen, the first housing has a first mounting surface, the second housing has a second mounting surface, and the side of the flexible screen opposite to the display surface is fixed to the first mounting surface and the second mounting surface. When the hinge is in a flattened state, the first mounting surface, the second mounting surface, the first support surface, and the second support surface are all located on the same plane, and the adjacent edges of the first mounting surface and the first support surface are spliced ​​together, and the adjacent edges of the second mounting surface and the second support surface are spliced ​​together.

2. The foldable electronic device according to claim 1, characterized in that, The main shaft has a third support surface for supporting the flexible screen. When the hinge is in a flattened state, the first mounting surface, the first support surface, the third support surface, the second support surface, and the second mounting surface are sequentially spliced ​​together to form a support surface for supporting the flexible screen.

3. The foldable electronic device according to claim 2, characterized in that, The flexible screen is fixed to the third support surface, or the flexible screen is erected on the third support surface.

4. The foldable electronic device according to claim 2 or 3, characterized in that, The third support surface is either a plane or a curved surface.

5. The foldable electronic device according to claim 2 or 3, characterized in that, The side of the third support surface adjacent to the first support surface is a first curved surface, and the side of the third support surface adjacent to the second support surface is a second curved surface. A plane is provided between the first curved surface and the second curved surface.

6. The foldable electronic device according to any one of claims 1 to 5, characterized in that, The first rotating member and the first connecting rod are both located on the side of the first body opposite to the first supporting surface; the second rotating member and the second connecting rod are both located on the side of the second body opposite to the second supporting surface.

7. The foldable electronic device according to any one of claims 1 to 6, characterized in that, The second end of the first connecting rod has a first pin hole, and the first end of the second rotating member has a second pin hole. The first connecting rod and the second rotating member are rotatably connected by pins passing through the first pin hole and the second pin hole. The second end of the second connecting rod has a third pin hole, and the first end of the first rotating member has a fourth pin hole. The second connecting rod and the first rotating member are rotatably connected by pins passing through the third pin hole and the fourth pin hole.

8. The foldable electronic device according to any one of claims 1 to 7, characterized in that, When the first folding assembly and the second folding assembly rotate toward each other, the first mounting surface and the second mounting surface tend to move away from each other; Furthermore, the second body is close to the main shaft, and the first body is close to the main shaft.

9. The foldable electronic device according to any one of claims 1 to 8, characterized in that, When the first folding component and the second folding component rotate in opposite directions; Furthermore, the second body is located away from the main axis, and the first body is located away from the main axis.

10. The foldable electronic device according to any one of claims 1 to 9, characterized in that, The main shaft includes a first shaft body and a second shaft body; The first shaft and the second shaft enclose a first arc-shaped space and a second arc-shaped space; The first end of the first rotating member has a first arc-shaped arm, the first arc-shaped arm is located in the first arc-shaped space, and the first end of the first rotating member is rotatably connected to the main shaft through the first arc-shaped arm and the first arc-shaped space; The first end of the second rotating member has a second arc-shaped arm, which is located in the second arc-shaped space. The first end of the second rotating member is rotatably connected to the main shaft through the second arc-shaped arm and the second arc-shaped space.

11. The foldable electronic device according to claim 10, characterized in that, During the folding and unfolding process of the foldable electronic device, the first arc-shaped arm rotates along the first arc-shaped space, and the second arc-shaped arm rotates along the second arc-shaped space.

12. The foldable electronic device according to claim 10 or 11, characterized in that, During the folding process of the foldable electronic device, the first arc-shaped arm rotates out relative to the first arc-shaped space, and the second arc-shaped arm rotates out relative to the second arc-shaped space; During the unfolding of the foldable electronic device, the first arc-shaped arm rotates into the first arc-shaped space, and the second arc-shaped arm rotates into the second arc-shaped space.

13. The foldable electronic device according to any one of claims 1 to 12, characterized in that, The first main body has a first sliding groove, the first rotating member has a first sliding end, the first sliding end is disposed in the first sliding groove, and the first rotating member is slidably connected to the first main body through the first sliding groove and the first sliding end; The second main body has a second sliding groove, and the second rotating member has a second sliding end. The second sliding end is disposed in the second sliding groove, and the second rotating member is slidably connected to the second main body through the second sliding groove and the second sliding end.

14. The foldable electronic device according to claim 13, characterized in that, During the folding process of the foldable electronic device, the first sliding end slides into the first sliding groove, and the second sliding end slides into the second sliding groove; During the unfolding of the foldable electronic device, the first sliding end slides out relative to the first sliding groove, and the second sliding end slides out relative to the second sliding groove.

15. The foldable electronic device according to any one of claims 1 to 14, characterized in that, The first folding component also includes a first hovering component; The first rotating component has a first mounting groove, and the first hovering component is disposed in the first mounting groove; The first hovering component slides in contact with the first body to provide damping force when the first rotating member and the first body slide relative to each other. The second folding assembly also includes a second hovering assembly; The second rotating member has a second mounting groove, and the second hovering component is disposed in the second mounting groove; The second hovering component slides in contact with the second body to provide damping force when the second rotating member and the second body slide relative to each other.

16. The foldable electronic device according to any one of claims 1 to 15, characterized in that, The hinge also includes a cover plate assembly, which includes a first plate, a second plate, and a third plate. The first plate is fixedly connected to the first rotating component, the second plate is fixedly connected to the second rotating component, and the third plate is fixedly connected to the main shaft.

17. The foldable electronic device according to any one of claims 1 to 16, characterized in that, It also includes a synchronization component, which is connected to the first body, the main shaft and the second body for driving the first folding component and the second folding component to rotate synchronously in opposite directions.

18. The foldable electronic device according to claim 17, characterized in that, The synchronization component includes a first synchronization element and a second synchronization element; The first synchronizing element is rotatably connected to the main shaft, and the rotation axis of the first synchronizing element coincides with the rotation axis of the first rotating element; the second synchronizing element is rotatably connected to the main shaft, and the rotation axis of the second synchronizing element coincides with the rotation axis of the second rotating element. The first synchronizing member has a first toothed portion and a first sliding portion, and the second synchronizing member has a second toothed portion and a second sliding portion; The first toothed portion engages with the second toothed portion, the first sliding portion is slidably connected to the first main body, and the second sliding portion is slidably connected to the second main body.

19. The foldable electronic device according to any one of claims 1 to 18, characterized in that, The hinge includes a plurality of the first folding components and the second folding components; The plurality of first folding components and the plurality of second folding components are arranged along a length direction parallel to the main axis.

20. A hinge for a foldable electronic device, the foldable electronic device including a flexible screen having a display surface, the foldable electronic device further including a first mounting surface and a second mounting surface, wherein a side of the flexible screen opposite to the display surface is fixed to the first mounting surface and the second mounting surface, characterized in that, The hinge includes a main shaft, a first folding assembly, and a second folding assembly, wherein the first folding assembly and the second folding assembly are disposed on both sides of the main shaft; The first folding assembly includes a first rotating member, a first main body, and a first connecting rod; The first end of the first rotating member is rotatably connected to the main shaft, and the second end of the first rotating member is slidably connected to the first main body. The second folding assembly includes a second rotating member, a second body, and a second connecting rod; The first end of the second rotating component is rotatably connected to the main shaft, and the second end of the second rotating component is slidably connected to the second main body; The first end of the first connecting rod is rotatably connected to the first main body, and the second end of the first connecting rod is rotatably connected to the first end of the second rotating member. The first end of the second connecting rod is rotatably connected to the second main body, and the second end of the second connecting rod is rotatably connected to the second end of the first rotating member; The first main body has a first support surface for supporting the flexible screen, and the second main body has a second support surface for supporting the flexible screen. When the hinge is in a flattened state, the first support surface and the second support surface are located on the same plane.

21. The hinge according to claim 20, characterized in that, The main shaft has a third support surface for supporting the flexible screen. When the hinge is in a flattened state, the first mounting surface, the first support surface, the third support surface, the second support surface, and the second mounting surface are sequentially spliced ​​together to form a support surface for supporting the flexible screen.

22. The hinge according to claim 21, characterized in that, The flexible screen is fixed to the third support surface, or the flexible screen is erected on the third support surface.

23. The hinge according to claim 21 or 22, characterized in that, The third support surface is either a plane or a curved surface.

24. The hinge according to claim 21 or 22, characterized in that, The side of the third support surface adjacent to the first support surface is a first curved surface, and the side of the third support surface adjacent to the second support surface is a second curved surface. A plane is provided between the first curved surface and the second curved surface.

25. The hinge according to any one of claims 20 to 24, characterized in that, Both the first rotating component and the first connecting rod are located on the side of the first body opposite to the first supporting surface; The second rotating member and the second connecting rod are both located on the side of the first body opposite to the second supporting surface.

26. The hinge according to any one of claims 20 to 25, characterized in that, The second end of the first connecting rod has a first pin hole, and the first end of the second rotating member has a second pin hole. The first connecting rod and the second rotating member are rotatably connected by pins passing through the first pin hole and the second pin hole. The second end of the second connecting rod has a third pin hole, and the first end of the first rotating member has a fourth pin hole. The second connecting rod and the first rotating member are rotatably connected by pins passing through the third pin hole and the fourth pin hole.

27. The hinge according to any one of claims 20 to 26, characterized in that, When the first folding assembly and the second folding assembly rotate toward each other, the first mounting surface and the second mounting surface tend to move away from each other; Furthermore, the second body is close to the main shaft, and the first body is close to the main shaft.

28. The hinge according to any one of claims 20 to 27, characterized in that, When the first folding component and the second folding component rotate in opposite directions; Furthermore, the second body is located away from the main axis, and the first body is located away from the main axis.

29. The hinge according to any one of claims 20 to 28, characterized in that, The main shaft includes a first shaft body and a second shaft body; The first shaft and the second shaft enclose a first arc-shaped space and a second arc-shaped space; The first end of the first rotating member has a first arc-shaped arm, the first arc-shaped arm is located in the first arc-shaped space, and the first end of the first rotating member is rotatably connected to the main shaft through the first arc-shaped arm and the first arc-shaped space; The first end of the second rotating member has a second arc-shaped arm, which is located in the two arc-shaped spaces. The first end of the second rotating member is rotatably connected to the main shaft through the second arc-shaped arm and the second arc-shaped spaces.

30. The hinge according to claim 29, characterized in that, During the folding and unfolding process of the foldable electronic device, the first arc-shaped arm rotates along the first arc-shaped space, and the second arc-shaped arm rotates along the second arc-shaped space.

31. The hinge according to claim 29 or 30, characterized in that, During the folding process of the foldable electronic device, the first arc-shaped arm rotates out relative to the first arc-shaped space, and the second arc-shaped arm rotates out relative to the second arc-shaped space; During the unfolding of the foldable electronic device, the first arc-shaped arm rotates into the first arc-shaped space, and the second arc-shaped arm rotates into the second arc-shaped space.

32. The hinge according to any one of claims 20 to 31, characterized in that, The first main body has a first sliding groove, the first rotating member has a first sliding end, the first sliding end is disposed in the first sliding groove, and the first rotating member is slidably connected to the first main body through the first sliding groove and the first sliding end; The second main body has a second sliding groove, and the second rotating member has a second sliding end. The second sliding end is disposed in the second sliding groove, and the second rotating member is slidably connected to the second main body through the second sliding groove and the second sliding end.

33. The hinge according to claim 32, characterized in that, During the folding process of the foldable electronic device, the first sliding end slides into the first sliding groove, and the second sliding end slides into the second sliding groove; During the unfolding of the foldable electronic device, the first sliding end slides out relative to the first sliding groove, and the second sliding end slides out relative to the second sliding groove.

34. The hinge according to any one of claims 20 to 33, characterized in that, The first folding component also includes a first hovering component; The first rotating component has a first mounting groove, and the first hovering component is disposed in the first mounting groove; The first hovering component slides in contact with the first body to provide damping force when the first rotating member and the first body slide relative to each other. The second folding assembly also includes a second hovering assembly; The second rotating member has a second mounting groove, and the second hovering component is disposed in the second mounting groove; The second hovering component slides in contact with the second body to provide damping force when the second rotating member and the second body slide relative to each other.

35. The hinge according to any one of claims 20 to 34, characterized in that, The hinge also includes a cover plate assembly, which includes a first plate, a second plate, and a third plate. The first plate is fixedly connected to the first rotating component, the second plate is fixedly connected to the second rotating component, and the third plate is fixedly connected to the main shaft.

36. The hinge according to any one of claims 20 to 35, characterized in that, It also includes a synchronization component, which is connected to the first body, the main shaft and the second body for driving the first folding component and the second folding component to rotate synchronously in opposite directions.

37. The hinge according to claim 36, characterized in that, The synchronization component includes a first synchronization element and a second synchronization element; The first synchronizing element is rotatably connected to the main shaft, and the rotation axis of the first synchronizing element coincides with the rotation axis of the first rotating element; the second synchronizing element is rotatably connected to the main shaft, and the rotation axis of the second synchronizing element coincides with the rotation axis of the second rotating element. The first synchronizing member has a first toothed portion and a first sliding portion, and the second synchronizing member has a second toothed portion and a second sliding portion; The first toothed portion engages with the second toothed portion, the first sliding portion is slidably connected to the first main body, and the second sliding portion is slidably connected to the second main body.

38. The hinge according to any one of claims 20 to 37, characterized in that, The hinge includes a plurality of the first folding components and the second folding components; The plurality of first folding components and the plurality of second folding components are arranged along a length direction parallel to the main axis.

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