Foldable device and display device

Abstract

The application provides a foldable device and a display device, wherein the foldable device comprises a frame plate, a main folding axis, at least one sub folding axis, at least one sub folding axis is not intersected with each other, at least one sub folding axis is intersected with the main folding axis and divides the frame plate into a plurality of sub frame plates, a folding mechanism comprising a first folding hinge and a second folding hinge, at least one pair of adjacent sub frame plates on the main folding axis are connected through the first folding hinge, at least one pair of adjacent sub frame plates on the at least one sub folding axis are connected through the second folding hinge, and any sub frame plate is connected with at least one first folding hinge or second folding hinge. The foldable device can be folded on a plurality of folding axes by the at least one sub folding axis intersecting with the main folding axis and dividing the frame plate into a plurality of sub frame plates, and the folding hinges are used, so that the foldable device can be folded on a plurality of folding axes, thereby improving the use experience of the user.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic devices, in particular to a foldable device and a display device. BACKGROUND

[0002] In recent years, OLED display technology has been widely used, and foldable mobile phones based on OLED display technology have also become more and more common. As a development direction of future mobile phones, foldable mobile phones have become a research hotspot of various mobile phone and panel manufacturers. At the same time, foldable tablets and laptops have also appeared. However, the existing foldable display devices only have a single folding axis or two parallel folding axes, and the folding modes of the existing foldable display devices are relatively few. With the development of technology, users are pursuing more and more use experiences, and therefore, display devices with more folding modes are needed to meet the experiences of users. SUMMARY

[0003] The present application provides a foldable device and a display device to improve user experience.

[0004] The present application provides a foldable device, which comprises:

[0005] a frame plate;

[0006] a main folding axis;

[0007] at least one secondary folding axis, the at least one secondary folding axis being non-intersecting, and the at least one secondary folding axis intersecting the main folding axis and dividing the frame plate into a plurality of sub-frame plates;

[0008] a folding mechanism, the folding mechanism comprising a first folding hinge and a second folding hinge;

[0009] at least one pair of adjacent sub-frame plates located on the main folding axis are connected by the first folding hinge, and at least one pair of adjacent sub-frame plates located on the at least one secondary folding axis are connected by the second folding hinge, and any sub-frame plate is connected with at least one first folding hinge or second folding hinge.

[0010] Optionally, in some embodiments of the present application, the first folding hinge and the second folding hinge comprise:

[0011] a first rotating member;

[0012] a second rotating member;

[0013] a first base, one end of the first rotating member being rotationally connected with the first base, and one end of the second rotating member being rotationally connected with the first base;

[0014] The other end of the first rotating member of the first folding hinge is connected to one of the adjacent sub-frame plates along the main folding axis, and the other end of the second rotating member of the first folding hinge is connected to the other of the adjacent sub-frame plates along the main folding axis;

[0015] The other end of the first rotating member of the second folding hinge is connected to one of the adjacent sub-frame plates along the at least one secondary folding axis, and the other end of the second rotating member of the second folding hinge is connected to the other of the adjacent sub-frame plates along the at least one secondary folding axis.

[0016] Optionally, in some embodiments of the present application, the first folding hinge and the second folding hinge further comprise:

[0017] A first damping mechanism connected to the first base and the first rotating member, respectively;

[0018] A second damping mechanism connected to the first base and the second rotating member, respectively;

[0019] When the first rotating member is rotated relative to the first base from a first position to a second position under the action of an external force, the first damping mechanism generates a damping force that hinders the rotation of the first rotating member, and when the external force disappears, the first damping mechanism keeps the first rotating member at the second position.

[0020] When the second rotating member is rotated relative to the first base from a third position to a fourth position under the action of an external force, the second damping mechanism generates a damping force that hinders the rotation of the second rotating member, and when the external force disappears, the second damping mechanism keeps the second rotating member at the fourth position.

[0021] Optionally, in some embodiments of the present application, the first damping mechanism comprises:

[0022] A first rotating shaft provided on the first base;

[0023] A first movable part, one end of which is rotatably connected to the first rotating shaft, and the other end of which is connected to the first rotating member;

[0024] A first damping part provided on the first rotating shaft;

[0025] When the first rotating member rotates from the first position to the second position relative to the first base under the action of an external force, the first movable part and the first damping part rotate relative to each other and generate a frictional damping force.

[0026] Optionally, in some embodiments of this application, when the first rotating member rotates from a first position to a second position relative to the first base under the action of an external force, the first movable part and the first damping part rotate relative to each other to a set position, and a frictional damping force is generated between the first movable part and the first damping part; when the external force disappears, the first movable part causes the first rotating member to remain in the second position.

[0027] Optionally, in some embodiments of this application, the first damping portion includes:

[0028] A first slider is slidably mounted on the first rotating shaft;

[0029] A first elastic element is disposed between the first slider and the first base;

[0030] When the first rotating member rotates from the first position to the second position relative to the first base under the action of an external force, the first movable part rotates relative to the first slider and squeezes the first elastic member. The first elastic member causes a frictional damping force to be generated between the first movable part and the first slider.

[0031] Optionally, in some embodiments of this application, the second damping mechanism includes:

[0032] The second rotating shaft is disposed on the first base;

[0033] The second movable part has two ends rotatably connected to the second rotating shaft, and the other end of the second movable part is connected to the second rotating member.

[0034] The second damping part is provided on the second rotating shaft;

[0035] When the second rotating member rotates relative to the first base from the third position to the fourth position under the action of an external force, the second movable part and the second damping part rotate relative to each other and generate a frictional damping force.

[0036] Optionally, in some embodiments of the present application, when the second rotating member is rotated from the third position to the fourth position relative to the first base under the action of an external force, the second movable part and the second damping part are relatively rotated to a set position, and a frictional damping force is generated between the second movable part and the second damping part; when the external force disappears, the frictional damping force causes the second rotating member to remain in the fourth position.

[0037] Optionally, in some embodiments of the present application, the second damping part comprises:

[0038] A second sliding block is slidingly arranged on the second rotating shaft;

[0039] A second elastic member is arranged between the second sliding block and the first base; wherein when the second rotating member is rotated from the third position to the fourth position relative to the first base under the action of an external force, the second movable part and the second sliding block are relatively rotated and press the second elastic member, and the second elastic member causes a frictional damping force to be generated between the second movable part and the second sliding block.

[0040] Optionally, in some embodiments of the present application, at least one pair of adjacent sub-frame plates located on the main folding axis are connected by two first folding hinges;

[0041] The two first folding hinges are connected by a first base plate.

[0042] Optionally, in some embodiments of the present application, the folding mechanism further comprises:

[0043] A hinge structure comprises a third rotating member, a fourth rotating member and a second base, one end of the third rotating member is rotationally connected with the second base, and one end of the fourth rotating member is rotationally connected with the second base;

[0044] The at least one pair of adjacent sub-frame plates located on the main folding axis are connected by a first hinge structure,

[0045] One side of the other end of the third rotating member of the first hinge structure is connected with one of the at least one pair of adjacent sub-frame plates located on the main folding axis, and one side of the other end of the fourth rotating member of the first hinge structure is connected with the other of the at least one pair of adjacent sub-frame plates located on the main folding axis.

[0046] Optionally, in some embodiments of the present application, the at least one pair of adjacent sub-frame plates located on the at least one secondary folding axis are connected by a second hinge structure,

[0047] The other end of the third rotating piece of the third hinge structure is connected to one of the at least one pair of adjacent sub-frame plates on the sub-folding axis, and the other end of the fourth rotating piece of the third hinge structure is connected to the other of the at least one pair of adjacent sub-frame plates on the sub-folding axis.

[0048] Optionally, in some embodiments of the present application, the at least one pair of adjacent sub-frame plates on the at least one sub-folding axis are connected by the second hinge structure and the second folding hinge, and the first base of the second folding hinge is connected to the second base of the second hinge structure by a connecting plate.

[0049] Optionally, in some embodiments of the present application, the sub-folding axis is divided into a first folding section and a second folding section by the main folding axis, a pair of adjacent sub-frame plates on the first folding section are connected by the second hinge structure and the second folding hinge, and a pair of adjacent sub-frame plates on the second folding section are connected by the second hinge structure and the second folding hinge; the first base of the second folding hinge on the first folding section is connected to the second base of the second hinge structure on the second folding section by a first connecting plate; and the first base of the second folding hinge on the second folding section is connected to the second base of the second hinge structure on the second folding section by a second connecting plate.

[0050] Optionally, in some embodiments of the present application, the first connecting plate and the second connecting plate are connected by a third hinge structure,

[0051] the other end of the third rotating piece of the third hinge structure is connected to the first connecting plate, and the other end of the fourth rotating piece of the third hinge structure is connected to the second connecting plate.

[0052] Optionally, in some embodiments of the present application, the foldable device further comprises:

[0053] a first folding shell arranged in the bending area of the first folding section of the sub-folding axis, the first folding shell being arranged on the side of the first connecting plate close to the frame plate and being connected to the first connecting plate, the other end of the third rotating piece of the third hinge structure, respectively;

[0054] a second folding shell arranged in the bending area of the second folding section of the sub-folding axis, the second folding shell being arranged on the side of the second connecting plate close to the frame plate and being connected to the second connecting plate, the other end of the fourth rotating piece of the third hinge structure, respectively;

[0055] A third folding housing is arranged on one side of the third hinge structure close to the frame plate and connected with the second base of the third hinge structure.

[0056] Optionally, in some embodiments of the present application, the hinge structure further comprises:

[0057] A second synchronization mechanism is connected between the third rotating member and the fourth rotating member, and the first synchronization mechanism enables the third rotating member and the fourth rotating member to rotate in the same direction or in opposite directions.

[0058] Optionally, in some embodiments of the present application, the second synchronization mechanism comprises:

[0059] A third connecting rod is hingedly connected at one end to the third rotating member and at the other end to the fourth rotating member.

[0060] Optionally, in some embodiments of the present application, the second synchronization mechanism further comprises:

[0061] A third eccentric shaft is arranged on the third rotating member in parallel with the center axis of rotation of the third rotating member about the second base;

[0062] A fourth eccentric shaft is arranged on the fourth rotating member in parallel with the center axis of rotation of the fourth rotating member about the second base;

[0063] Optionally, in some embodiments of the present application, one end of the third connecting rod is hingedly connected to the third eccentric shaft, and the other end of the third connecting rod is hingedly connected to the fourth eccentric shaft.

[0064] Correspondingly, the present application also provides a display device comprising:

[0065] The foldable device as described above;

[0066] A display panel is arranged on one side of the frame plate of the foldable device.

[0067] The application provides a foldable device and a display device, wherein the foldable device comprises a frame plate, a main folding axis, at least one sub-folding axis, the at least one sub-folding axis is not intersected with each other, the at least one sub-folding axis intersects with the main folding axis respectively and divides the frame plate into a plurality of sub-frames, a folding mechanism, the folding mechanism comprises a first folding hinge and a second folding hinge, at least one pair of adjacent sub-frames on the main folding axis is connected through the first folding hinge, at least one pair of adjacent sub-frames on the at least one sub-folding axis is connected through the second folding hinge, and any sub-frame is connected with at least one first folding hinge or second folding hinge. The foldable device of the application can be folded on a plurality of folding axes by intersecting the at least one sub-folding axis with the main folding axis respectively and dividing the frame plate into a plurality of sub-frames, and the folding hinges are used to realize folding on a plurality of folding axes, thereby improving the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0068] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort.

[0069] Figure 1 is a schematic view of the first angle of the folding hinge provided by the application;

[0070] Figure 2 is an exploded view of Figure 1

[0071] Figure 3 is a schematic view of the second angle of the folding hinge provided by the application;

[0072] Figure 4 is an exploded view of Figure 3

[0073] Figure 5 is a schematic view of the first rotating part of the folding hinge provided by the application;

[0074] Figure 6 is a schematic view of the second rotating part of the folding hinge provided by the application;

[0075] Figure 7 is a schematic view of the cooperation of the first rotating part and the second rotating part of the folding hinge provided by the application;

[0076] Figure 8 is a schematic view of the first angle of the first base of the folding hinge provided by the application; ​​

[0077] Figure 9 is a schematic view of a second angle of the first base of the folding hinge provided in the present application;

[0078] Figure 10 is a schematic view of the first damping mechanism and the second damping mechanism of the folding hinge provided in the present application;

[0079] Figure 11 is a schematic view of the first movable part of the first damping mechanism of the folding hinge provided in the present application;

[0080] Figure 12 is a schematic view of the second movable part of the second damping mechanism of the folding hinge provided in the present application;

[0081] Figure 13 is a schematic view of the first damping part and the second damping part of the folding hinge provided in the present application;

[0082] Figure 14 is a schematic view of the first synchronization mechanism of the folding hinge provided in the present application;

[0083] Figure 15 is a schematic view of the foldable device provided in the present application;

[0084] Figure 16 is an exploded schematic view of Figure 15 ;

[0085] Figure 17 is a schematic view of the frame plate of the foldable device provided in the present application;

[0086] Figure 18 is a schematic view of the folding mechanism of the foldable device provided in the present application;

[0087] Figure 19 is a schematic view of the folding housing of the foldable device provided in the present application;

[0088] Figure 20 is a schematic view of a first angle of the hinge structure of the foldable device provided in the present application;

[0089] Figure 21 is an exploded schematic view of Figure 20 ;

[0090] Figure 22 is a schematic view of a second angle of the hinge structure of the foldable device provided in the present application;

[0091] Figure 23 is an exploded schematic view of Figure 22 ;

[0092] Figure 24 is a schematic view of the third rotating part of the hinge structure of the foldable device provided in the present application;

[0093] Figure 25 A schematic view of a fourth rotating piece of a hinge structure of a foldable device provided in the present application;

[0094] Figure 26 A schematic view of a third rotating piece and a fourth rotating piece of a hinge structure of a foldable device provided in the present application;

[0095] Figure 27 A schematic view of a first angle of a second base of a hinge structure of a foldable device provided in the present application;

[0096] Figure 28 A schematic view of a second angle of a second base of a hinge structure of a foldable device provided in the present application;

[0097] Figure 29 A schematic view of a second synchronization mechanism of a hinge structure of a foldable device provided in the present application;

[0098] Figure 30 A schematic view of a display panel of a display device provided in the present application. DETAILED DESCRIPTION

[0099] The technical solutions in the embodiments of the present application will be clearly and completely described in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person skilled in the art without creative work fall within the protection scope of the present application.

[0100] In the description of the present application, it should be understood that the terms "center", "length", "width", "upper", "lower", "front", "back", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0101] In the description of the present application, unless otherwise explicitly specified and limited, the terms such as "connected", "connected", "installed", "fixed" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the above belongs to the specific meaning in the present application can be understood according to the specific circumstances.

[0102] The present application provides a folding hinge, a foldable device and a display device, which will be described in detail below. It should be noted that the description order of the following embodiments is not limited as the preferred order of the embodiments of the present application.

[0103] Please refer to Figures 1 to 4 , Figure 1 is a schematic view of the first angle of the folding hinge 100 provided by the present application, Figure 2 is an exploded schematic view of Figure 1 ; Figure 3 is a schematic view of the second angle of the folding hinge 100 provided by the present application, Figure 4 is an exploded schematic view of Figure 3 . The present application provides a folding hinge 100, which comprises a first rotating member 10, a second rotating member 20, a first base 30, a first damping mechanism 40 and a second damping mechanism 50.

[0104] Wherein, one end of the first rotating member 10 is rotatably connected with the first base 30, and one end of the second rotating member 20 is rotatably connected with the first base 30; the first damping mechanism 40 is connected with the first base 30 and the first rotating member 10 respectively; the second damping mechanism 50 is connected with the first base 30 and the second rotating member 20 respectively. Wherein, when the first rotating member 10 is rotated from a first position to a second position relative to the first base 30 under the action of an external force, the first damping mechanism 40 generates a damping force to hinder the rotation of the first rotating member 10, and when the external force disappears, the first damping mechanism 40 keeps the first rotating member 10 at the second position; when the second rotating member 20 is rotated from a third position to a fourth position relative to the first base 30 under the action of an external force, the second damping mechanism 50 generates a damping force to hinder the rotation of the second rotating member 20, and when the external force disappears, the second damping mechanism 50 keeps the second rotating member 20 at the fourth position.

[0105] The present application realizes hovering of the first rotating member 10 through the first damping mechanism 40, realizes hovering of the second rotating member 20 through the second damping mechanism 50, and can also feed back a certain damping feeling to the user through the damping mechanism, thereby improving the use experience.

[0106] It should be noted that when the first rotating member 10 is in the first position, the damping mechanism can maintain a damping force, or the damping force of the damping mechanism can be 0. For example, when the first rotating member 10 is in the first position, and the second rotating member 20 is in the third position, the included angle between the first rotating member 10 and the second rotating member 20 is 180 degrees, at this time, the damping force of the damping mechanism is 0; when the first rotating member 10 is in the first position, and the included angle between the first rotating member 10 and the second rotating member 20 is an angle other than 180 degrees, then the damping mechanism maintains a damping force.

[0107] Please refer to Figures 5 to 9 , Figure 5 is a schematic view of the first rotating member 10 of the folding hinge 100 provided in the present application, Figure 6 is a schematic view of the second rotating member 20 of the folding hinge 100 provided in the present application, Figure 7 is a schematic view of the cooperation between the first rotating member 10 and the second rotating member 20 of the folding hinge 100 provided in the present application, Figure 8 is a schematic view of the first angle of the first base 30 of the folding hinge 100 provided in the present application, Figure 9 is a schematic view of the second angle of the first base 30 of the folding hinge 100 provided in the present application. In some embodiments, the first base 30 is provided with a first arc-shaped sliding rail 31 or a first arc-shaped sliding groove 11, and the first rotating member 10 is provided with the first arc-shaped sliding groove 11 or the first arc-shaped sliding rail 31 which cooperates with the first arc-shaped sliding rail 31 or the first arc-shaped sliding groove 11. Specifically, the first base 30 is provided with a first arc-shaped sliding rail 31, and the first rotating member 10 is provided with a first arc-shaped sliding groove 11 which cooperates with the first arc-shaped sliding rail 31. Through the cooperation between the first arc-shaped sliding rail 31 and the first arc-shaped sliding groove 11, one end of the first rotating member 10 is rotatably connected to the first base 30. Of course, it can be conceived that the first rotating member 10 can also be rotatably connected to the first base 30 through a rotating shaft, so that one end of the first rotating member 10 is rotatably connected to the first base 30.

[0108] Further, the first base 30 is provided with a first concave cavity 33 on one side, and the first concave cavity 33 is provided with two opposite side walls, and the first arc-shaped sliding rail 31 is arranged on each of the two opposite side walls. Specifically, the first rotating part 10 comprises a first rotating block 13 and a first rotating plate 12, the first rotating block 13 is fixed on one end of the first rotating plate 12, the first rotating block 13 is located in the first concave cavity 33, and the first rotating block 13 is provided with the first arc-shaped sliding groove 11 on both sides, which is matched with the first arc-shaped sliding rail 31. The surface of the first rotating block 13 close to the bottom of the first concave cavity 33 is a circular arc surface 15, which can reduce the friction between the first rotating block 13 and the first concave cavity 33. In addition, the bottom of the first concave cavity 33 is provided with a first through hole 35, which can reduce the contact between the first rotating block 13 and the first concave cavity 33, thereby further reducing the friction between the first rotating block 13 and the first concave cavity 33.

[0109] In some embodiments, the first base 30 is provided with a second arc-shaped sliding rail 32 or a second arc-shaped sliding groove 21, and the second rotating part 20 is provided with the second arc-shaped sliding groove 21 or the second arc-shaped sliding rail 32 matched with the second arc-shaped sliding rail 32 or the second arc-shaped sliding groove 21. Specifically, the first base 30 is provided with a second arc-shaped sliding rail 32, and the second rotating part 20 is provided with a second arc-shaped sliding groove 21 matched with the second arc-shaped sliding rail 32. The second rotating part 20 is rotatably connected to the first base 30 through the cooperation of the second arc-shaped sliding rail 32 and the second arc-shaped sliding groove 21. Of course, it is also conceivable that the second rotating part 20 is rotatably connected to the first base 30 through a rotating shaft, so that one end of the second rotating part 20 is rotatably connected to the first base 30.

[0110] Further, in some embodiments of the present application, the first base 30 is provided with a second concave cavity 34 on one side, and the second concave cavity 34 is provided with two opposite side walls, and the second arc-shaped sliding rail 32 or the second arc-shaped sliding groove 21 is arranged on each of the two opposite side walls. Specifically, the second rotating part 20 comprises a second rotating block 23 and a second rotating plate 22, the second rotating block 23 is fixed on one end of the second rotating plate 22, the second rotating block 23 is located in the second concave cavity 34, and the second rotating block 23 is provided with the second arc-shaped sliding groove 21 on both sides, which is matched with the second arc-shaped sliding rail 32. The surface of the second rotating block 23 close to the bottom of the second concave cavity 34 is a circular arc surface 25, which can reduce the friction between the second rotating block 23 and the second concave cavity 34. In addition, the bottom of the second concave cavity 34 is provided with a second through hole 36, which can reduce the contact between the second rotating block 23 and the second concave cavity 34, thereby further reducing the friction between the second rotating block 23 and the second concave cavity 34.

[0111] In some embodiments, when the included angle between the first rotating member 10 and the second rotating member 20 is 180 degrees, one end of the first rotating member 10 abuts against one end of the second rotating member 20, and the included angle between the first rotating member 10 and the second rotating member 20 can be defined as ranging from 0 degree to 180 degree to avoid excessive rotation. Specifically, the first cavity 33 is in communication with the second cavity 34, when the included angle between the first rotating member 10 and the second rotating member 20 is 180 degrees, one end of the first rotating block 13 abuts against one end of the second rotating block 23, and a first notch 16 is arranged on the surface of the first rotating block 13 in contact with the second rotating block 23. A first clamping block 26 is arranged on the second rotating block 23 and cooperates with the first notch 16. The first rotating block 13 and the second rotating block 23 are clamped by the first notch 16 and the first clamping block 26, thereby defining the included angle between the first rotating member 10 and the second rotating member 20 as ranging from 0 degree to 180 degree. Further, a second notch 27 is arranged on the surface of the second rotating block 23 in contact with the first rotating block 13, and a second clamping block 17 is arranged on the first rotating block 13 and cooperates with the second notch 27.

[0112] Further, the folding hinge further comprises a first end cover 60 arranged on one side of the first base 30, the first damping mechanism 40 is arranged on the side of the first base 30 opposite to the first end cover 60, and the first end cover 60 is connected with the first rotating member 10. Specifically, the first base 30 is provided with a first connecting through hole 37 in communication with the first cavity 33 on the side of the first end cover 60, and the first end cover 60 is connected with the first rotating member 10 through the first connecting through hole 37. The first end cover 60 can prevent dust or impurities from entering the first cavity 33.

[0113] In addition, the folding hinge further comprises a second end cover 70 arranged on one side of the first base 30, the second damping mechanism 50 is arranged on the side of the first base 30 opposite to the second end cover 70, and the second end cover 70 is connected with the second rotating member 20. Specifically, the first base 30 is provided with a second connecting through hole 38 in communication with the second cavity 34 on the side of the second end cover 70, and the second end cover 70 is connected with the second rotating member 20 through the second connecting through hole 38. The second end cover 70 can prevent dust or impurities from entering the second cavity 34.

[0114] Please refer to Figures 10 to 13 , Figure 10is a schematic view of the first damping mechanism 40 and the second damping mechanism 50 of the folding hinge 100 provided in the present application, Figure 11 is a schematic view of the first movable part 42 of the first damping mechanism 40 of the folding hinge 100 provided in the present application, Figure 12 is a schematic view of the second movable part 52 of the second damping mechanism 50 of the folding hinge 100 provided in the present application, Figure 13 is a schematic view of the first damping part 43 and the second damping part 53 of the folding hinge 100 provided in the present application.

[0115] In some embodiments, the first damping mechanism 40 comprises:

[0116] a first rotating shaft 41, which is arranged on the first base 30;

[0117] a first movable part 42, one end of which is rotatably connected to the first rotating shaft 41, and the other end of which is connected to the first rotating part 10;

[0118] a first damping part 43, which is arranged on the first rotating shaft 41;

[0119] When the first rotating part 10 is rotated relative to the first base 30 from a first position to a second position under the action of an external force, the first movable part 42 and the first damping part 43 are relatively rotated and generate a friction damping force.

[0120] In the present application, the other end of the first movable part 42 is connected to the first rotating part 10, the first rotating part 10 drives the first movable part 42 to rotate around the first rotating shaft 41 during rotation, when the first rotating part 10 is rotated relative to the first base 30 from a first position to a second position under the action of an external force, the first movable part 42 and the first damping part 43 are relatively rotated and generate a friction damping force, and when the external force disappears, the friction damping force makes the first rotating part 10 remain in the second position.

[0121] Specifically, the first movable part 42 comprises a first wing plate 423 and a first sleeve 422 connected to each other, the first sleeve 422 is rotatably connected to the first rotating shaft 41, one end of the first wing plate 423 is connected to the first sleeve 422, and the other end of the first wing plate 423 is connected to the first rotating plate 12. Further, one side of the first rotating plate 12 is provided with a first sliding groove 14 arranged along the direction of the radius of rotation, and the other end of the first wing plate 423 is provided with a first sliding shaft 4231 matched with the first sliding groove 14. The first rotating plate 12 and the first wing plate 423 are connected in a sliding manner, which can avoid the situation of being stuck.

[0122] In some embodiments, the first damping part 43 comprises:

[0123] a first sliding block 431 slidingly arranged on the first rotating shaft 41;

[0124] a first elastic member 432 arranged between the first sliding block 431 and the first base 30;

[0125] When the first rotating member 10 is rotated relative to the first base 30 from a first position to a second position under the action of an external force, the first movable part 42 is relatively rotated with the first sliding block 431 and presses the first elastic member 432, and the first elastic member 432 generates a friction damping force between the first movable part 42 and the first sliding block 431.

[0126] That is, when the first movable part 42 is relatively rotated with the first sliding block 431 and presses the first elastic member 432 when the first rotating member 10 is rotated relative to the first base 30 from a first position to a second position under the action of an external force, the first elastic member 432 generates a friction damping force between the first movable part 42 and the first sliding block 431.

[0127] In some embodiments, the first movable part 42 is provided with a first protruding part 421 on the surface in contact with the first sliding block 431, the first sliding block 431 is provided with a first recessed part 4311 on the surface in contact with the first movable part 42, and the first sliding block 431 is provided with a first friction part 4312 adjacent to the first recessed part 4311 on the surface in contact with the first movable part 42. Specifically, the first sleeve 422 is provided with a first protruding part 421 on the surface in contact with the first sliding block 431, and the first recessed part 4311 and the first friction part 4312 are located in the same circumferential direction.

[0128] That is, when the first protruding part 421 of the first movable part 42 is aligned with the first recessed part 4311 of the first sliding block 431, the first movable part 42 and the first sliding block 431 cannot generate a friction damping force, and when the first movable part 42 is relatively rotated with the first sliding block 431, the first protruding part 421 of the first movable part 42 is aligned with the first friction part 4312 of the first sliding block 431, at this time, the first movable part 42 presses the first sliding block 431 and the first elastic member 432, and the first elastic member 432 generates a friction damping force between the first movable part 42 and the first sliding block 431.

[0129] When the first recessed part 4311 is one, that is, the surface of the first slider 431 in contact with the first rotating part 10 is provided with one first recessed part 4311, and the surface of the first slider 431 in contact with the first movable part 42 is the first friction part 4312 except for the first recessed part 4311, when the first protruding part 421 of the first movable part 42 is aligned with the first recessed part 4311 of the first slider 431, at this time, the first rotating part 10 is in a horizontal state, and the first rotating part 10 has not yet rotated, when the first rotating part 10 rotates, the first protruding part 421 of the first movable part 42 is aligned with the first friction part 4312 of the first slider 431, and because the surface of the first slider 431 in contact with the first movable part 42 is the first friction part 4312 except for the first recessed part 4311, the first rotating part 10 can realize continuous hovering, as long as the external force overcomes the frictional damping force between the first movable part 42 and the first slider 431, the first rotating part 10 can continue to rotate, and when the external force disappears, the frictional damping force between the first movable part 42 and the first slider 431 makes the first rotating part 10 hover.

[0130] Further, the first elastic part 432 includes a spring, the spring is sleeved on the first rotating shaft 41, and the spring is located between the first slider 431 and the first base 30. When the first protruding part 421 of the first movable part 42 is aligned with the first friction part 4312 of the first slider 431, at this time, the first movable part 42 presses the first slider 431 and the spring, and the spring gives the first slider 431 a reverse force, so that the first movable part 42 and the first slider 431 generate a frictional damping force. In other embodiments of the present application, the first elastic part 432 includes a spring washer, the spring washer is sleeved on the first rotating shaft 41, and the spring washer is located between the first slider 431 and the first base 30.

[0131] In some embodiments, the first recessed part 4311 includes an arc-shaped groove. Further, the sidewall of the arc-shaped groove is an arc-shaped curved surface, and the bottom surface of the arc-shaped groove is a plane. The first recessed part 4311 is provided as an arc-shaped groove, so that the first protruding part 421 and the first recessed part 4311 can relatively rotate more smoothly, and the situation of being stuck can be avoided. In addition, the first friction part 4312 includes a first contact surface located on the same circumference as the first recessed part 4311. The first contact surface includes a non-smooth plane, and the non-smooth plane can be provided with a particle protrusion for increasing friction, so as to increase the frictional damping force between the first friction part 4312 and the first protruding part 421.

[0132] Further, the first protruding part 421 comprises a second contact surface 4211 protruding towards the first slider 431, a first arc-shaped curved surface 4212 and a second arc-shaped curved surface 4213, the first arc-shaped curved surface 4212 being connected between one end of the second contact surface 4211 and the first movable part 42, and the second arc-shaped curved surface 4213 being connected between the other end of the second contact surface 4211 and the first movable part 42. The first protruding part 421 has two arc-shaped curved surfaces, the first arc-shaped curved surface 4212 and the second arc-shaped curved surface 4213 corresponding to the side walls of the arc-shaped groove respectively, so as to further reduce the friction between the first protruding part 421 and the first recessed part 4311, and make the relative rotation between the first protruding part 421 and the first recessed part 4311 more smooth. In addition, the second contact surface 4211 comprises a non-smooth surface, and the non-smooth surface can be provided with granular protrusions for increasing the friction, so as to increase the frictional damping force between the first friction part 4312 and the first protruding part 421.

[0133] In some embodiments, when the first rotating member 10 is rotated relative to the first base 30 from a first position to a second position under the action of an external force, the first movable part 42 and the first damping part 43 are relatively rotated to a set position, and the frictional damping force is generated between the first movable part 42 and the first damping part 43; when the external force disappears, the first movable part 42 keeps the first rotating member 10 at the second position.

[0134] That is, the relative rotation between the first movable part 42 and the first damping part 43 to the set position and the generation of the frictional damping force between the first movable part 42 and the first damping part 43 can make the first rotating member 10 hover at the set position.

[0135] Further, the first slider 431 is provided with a plurality of first recesses 4311 on the surface in contact with the first movable part 42 in the same circumferential direction, and a first friction part 4312 is arranged between adjacent first recesses 4311. By arranging a plurality of first recesses 4311 and a first friction part 4312 between adjacent first recesses 4311, the first protrusion part 421 can be matched with the plurality of first recesses 4311 or the plurality of first friction parts 4312. When the first movable part 42 and the first damping part 43 are relatively rotated to the position where the first protrusion part 421 is aligned with the first friction part 4312, a friction damping force is generated between the first movable part 42 and the first damping part 43, so that the first rotating part 10 can hover at a set position. Since the first protrusion part 421 is matched with the plurality of first recesses 4311 or the plurality of first friction parts 4312, a plurality of hovering positions can be obtained, so that the first rotating part 10 can hover at a plurality of rotating angles.

[0136] Please refer to Figures 10 to 13 , Figure 10 is a schematic view of the first damping mechanism 40 and the second damping mechanism 50 of the folding hinge 100 provided in the present application, Figure 11 is a schematic view of the first movable part 42 of the first damping mechanism 40 of the folding hinge 100 provided in the present application, Figure 12 is a schematic view of the second movable part 52 of the second damping mechanism 50 of the folding hinge 100 provided in the present application, Figure 13 is a schematic view of the first damping part 43 and the second damping part 53 of the folding hinge 100 provided in the present application.

[0137] In some embodiments, the second damping mechanism 50 comprises:

[0138] a second rotating shaft 51 arranged on the first base 30;

[0139] a second movable part 52, two ends of the second movable part 52 are rotatably connected to the second rotating shaft 51, and the other end of the second movable part 52 is connected to the second rotating part 20;

[0140] a second damping part 53 arranged on the second rotating shaft 51;

[0141] When the second rotating part 20 is rotated relative to the first base 30 from the third position to the fourth position under the action of an external force, the second movable part 52 and the second damping part 53 are relatively rotated and a friction damping force is generated.

[0142] The second movable part 52 is connected to the second rotating part 20 at the other end, and the second rotating part 20 drives the second movable part 52 to rotate around the second rotating shaft 51 during rotation. When the second rotating part 20 is driven by external force to rotate from the third position to the fourth position relative to the first base 30, the second movable part 52 rotates relative to the second damping part 53 and generates a frictional damping force. When the external force disappears, the frictional damping force keeps the second rotating part 20 at the fourth position.

[0143] Specifically, the second movable part 52 includes a second wing plate 523 and a second sleeve 522 connected to each other. The second sleeve 522 is rotationally connected to the second rotating shaft 51. One end of the second wing plate 523 is connected to the second sleeve 522, and the other end of the second wing plate 523 is connected to the second rotating plate 22. Further, one side of the second rotating plate 22 is provided with a second sliding groove 24 arranged along the direction of the radius of rotation, and the other end of the second wing plate 523 is provided with a second sliding shaft 5231 matched with the second sliding groove 24. The second rotating plate 22 and the second wing plate 523 are connected in a sliding manner, which can avoid the situation of being stuck.

[0144] In some embodiments, the second damping part 53 includes:

[0145] A second sliding block 531 is slidingly arranged on the second rotating shaft 51.

[0146] A second elastic member 532 is arranged between the second sliding block 531 and the first base 30.

[0147] When the second rotating part 20 is driven by external force to rotate from the third position to the fourth position relative to the first base 30, the second movable part 52 rotates relative to the second sliding block 531 and presses the second elastic member 532, and the second elastic member 532 generates a frictional damping force between the second movable part 52 and the second sliding block 531.

[0148] That is, when the second rotating part 20 is driven by external force to rotate from the third position to the fourth position relative to the first base 30, the second movable part 52 rotates relative to the second sliding block 531 and presses the second elastic member 532, and the second elastic member 532 generates a frictional damping force between the second movable part 52 and the second sliding block 531.

[0149] In some embodiments, the second active part 52 is provided with a second protrusion 521 on the surface in contact with the second slider 531, the second slider 531 is provided with a second recess 5311 on the surface in contact with the second active part 52, the second recess 5311 is adjacent to a second friction part 5312 on the surface in contact with the second active part 52. Specifically, the second recess 5311 and the second friction part 5312 are in the same circumferential direction.

[0150] That is, when the second protrusion 521 of the second active part 52 is aligned with the second recess 5311 of the second slider 531, no frictional damping force can be generated between the second active part 52 and the second slider 531, when the second active part 52 and the second slider 531 rotate relative to each other, the second protrusion 521 of the second active part 52 is aligned with the second friction part 5312 of the second slider 531, at this time, the second active part 52 presses the second slider 531 and the second elastic member 532, the second elastic member 532 gives the second slider 531 an opposite force, so that the second active part 52 and the second slider 531 generate a frictional damping force.

[0151] When the second recess 5311 is one, that is, the surface in contact with the second active part 52 of the second slider 531 is provided with one second recess 5311, and the other part of the surface in contact with the second active part 52 of the second slider 531 is the second friction part 5312, when the second protrusion 521 of the second active part 52 is aligned with the second recess 5311 of the second slider 531, at this time, the second rotating part 20 is in a horizontal state, the second rotating part 20 has not rotated, when the second rotating part 20 rotates, the second protrusion 521 of the second active part 52 is aligned with the second friction part 5312 of the second slider 531, because the other part of the surface in contact with the second active part 52 of the second slider 531 is the second friction part 5312, therefore, the second rotating part 20 can realize continuous hovering, as long as the external force overcomes the frictional damping force between the second active part 52 and the second slider 531, the second rotating part 20 can continue to rotate, when the external force disappears, the frictional damping force between the second active part 52 and the second slider 531 makes the second rotating part 20 hover.

[0152] Further, the second elastic member 532 comprises a spring, which is sleeved on the second rotating shaft 51 and located between the second sliding block 531 and the first base 30. When the second protruding part 521 of the second movable part 52 is aligned with the second friction part 5312 of the second sliding block 531, the second movable part 52 presses the second sliding block 531 and the spring at this time, the spring gives the second sliding block 531 a reverse force, so that the second movable part 52 and the second sliding block 531 generate a friction damping force. In other embodiments of the present application, the second elastic member 532 comprises a spring washer, which is sleeved on the second rotating shaft 51 and located between the second sliding block 531 and the first base 30.

[0153] In some embodiments, the second recessed part 5311 comprises an arc-shaped groove. Further, the sidewall of the arc-shaped groove is an arc-shaped curved surface, and the bottom surface of the arc-shaped groove is a plane. The second recessed part 5311 is designed as an arc-shaped groove, which can make the second protruding part 521 and the second recessed part 5311 relatively rotate more smoothly, avoiding the situation of being stuck. In addition, the second friction part 5312 comprises a third contact surface located on the same circumference as the second recessed part 5311. The third contact surface comprises a non-smooth plane, which can be provided with a particle protrusion for increasing friction, thereby increasing the friction damping force between the second friction part 5312 and the second protruding part 521.

[0154] Further, the second protruding part 521 comprises a fourth contact surface 5211 protruding towards the second sliding block 531, a third arc-shaped curved surface 5212 and a fourth arc-shaped curved surface 5213, the third arc-shaped curved surface 5212 is connected between one end of the fourth contact surface 5211 and the second movable part 52, and the fourth arc-shaped curved surface 5213 is connected between the other end of the fourth contact surface 5211 and the second movable part 52. The second protruding part 521 has two arc-shaped curved surfaces, the third arc-shaped curved surface 5212 and the fourth arc-shaped curved surface 5213 correspond to the sidewall of the arc-shaped groove respectively, thereby further reducing the friction force between the second protruding part 521 and the second recessed part 5311, making the relative rotation of the second protruding part 521 and the second recessed part 5311 more smooth. In addition, the fourth contact surface 5211 comprises a non-smooth plane, which can be provided with a particle protrusion for increasing friction, thereby increasing the friction damping force between the second friction part 5312 and the second protruding part 521.

[0155] In some embodiments, when the second rotating member 20 is rotated from the third position to the fourth position relative to the first base 30 under the action of an external force, the second movable part 52 is rotated relative to the second damping part 53 to a set position, and a frictional damping force is generated between the second movable part 52 and the second damping part 53; when the external force disappears, the frictional damping force causes the second rotating member 20 to remain in the fourth position.

[0156] That is, when the second movable part 52 is rotated relative to the second damping part 53 to a set position, a frictional damping force is generated between the second movable part 52 and the second damping part 53, which can enable the second rotating member 20 to hover at a set position.

[0157] Further, the second sliding block 531 is provided with a plurality of second recessed parts 5311 in the same circumferential direction on the surface in contact with the second movable part 52, and a second friction part 5312 is arranged between adjacent second recessed parts 5311. By arranging a plurality of second recessed parts 5311 and a second friction part 5312 between adjacent second recessed parts 5311, the second protruding part 521 can cooperate with a plurality of second recessed parts 5311 or a plurality of second friction parts 5312. When the second movable part 52 is rotated relative to the second damping part 53 to a position where the second protruding part 521 is aligned with the second friction part 5312, a frictional damping force is generated between the second movable part 52 and the second damping part 53, which can enable the second rotating member 20 to hover at a set position. Since the second protruding part 521 cooperates with a plurality of second recessed parts 5311 or a plurality of second friction parts 5312, there can be a plurality of hovering positions, so that the second rotating member 20 can hover at a plurality of rotating angles.

[0158] In some embodiments, the first sliding block 431 and the second sliding block 531 are connected by a second connecting rod 44. By connecting the first sliding block 431 and the second sliding block 531 by the second connecting rod 44, the first sliding block 431 and the second sliding block 531 can be kept synchronous sliding, thereby ensuring that the first damping mechanism 40 and the second damping mechanism 50 generate the same frictional damping force, and at the same time, the first sliding block 431 and the second sliding block 531 can be prevented from rotating.

[0159] Please refer to Figures 1 to 14 , Figure 14is a schematic view of a first synchronization mechanism 80 of a folding hinge 100 provided by the present application. In some embodiments, the folding hinge 100 further comprises: a first synchronization mechanism 80 connected between the first damping mechanism 40 and the second damping mechanism 50, the first synchronization mechanism 80 enabling the first rotating member 10 and the second rotating member 20 to synchronously rotate towards each other or away from each other.

[0160] The present application enables the first rotating member 10 and the second rotating member 20 to synchronously rotate towards each other or away from each other by providing the first synchronization mechanism 80, so that the first rotating member 10 and the second rotating member 20 maintain the same rotating angle.

[0161] Further, the first synchronization mechanism 80 comprises: a first connecting rod 81, one end of the first connecting rod 81 being hingedly connected with the first movable part 42 of the first damping mechanism 40, the other end of the first connecting rod 81 being hingedly connected with the second movable part 52 of the second damping mechanism 50. The first movable part 42 of the first damping mechanism 40 and the second movable part 52 of the second damping mechanism 50 are synchronously rotated towards each other or away from each other by the first connecting rod 81. Specifically, one end of the first connecting rod 81 is hingedly connected with the first sleeve 422 of the first movable part 42, and the other end of the first connecting rod 81 is hingedly connected with the second sleeve 522 of the second movable part 52.

[0162] Still further, the first synchronization mechanism 80 further comprises: a first eccentric shaft 82 and a second eccentric shaft 83; the first eccentric shaft 82 is provided on the first movable part 42 in parallel with the first rotating shaft 41; the second eccentric shaft 83 is provided on the second movable part 52 in parallel with the second rotating shaft 51; wherein one end of the first connecting rod 81 is hingedly connected with the first eccentric shaft 82, and the other end of the first connecting rod 81 is hingedly connected with the second eccentric shaft 83. Specifically, the first eccentric shaft 82 is provided on the first sleeve 422 in parallel with the first rotating shaft 41, and the second eccentric shaft 83 is provided on the second sleeve 522 in parallel with the second rotating shaft 51. In addition, a first mounting gap 4221 is provided on the wall of the side of the first sleeve 422 facing the second sleeve 522, the first eccentric shaft 82 is provided in the first mounting gap 4221, and a second mounting gap 5221 is provided on the wall of the side of the second sleeve 522 facing the first sleeve 422, the second eccentric shaft 83 is provided in the second mounting gap 5221. Providing the mounting gaps can improve the compactness of the first synchronization mechanism 80 and reduce the occupied area. The arc of the first mounting gap 4221 is greater than or equal to 180 degrees, and the arc of the second mounting gap 5221 is greater than or equal to 180 degrees, which facilitates the installation of the first connecting rod 81.

[0163] Please refer to Figures 15 to 18 , Figure 15 a schematic view of a foldable device 1000 provided by the present application, Figure 16 is Figure 15 an exploded schematic view, Figure 17 a schematic view of a frame plate 101 of a foldable device 1000 provided by the present application, Figure 18 a schematic view of a folding mechanism 102 of a foldable device 1000 provided by the present application. Correspondingly, the present application provides a foldable device 1000, which comprises a frame plate 101, a main folding axis 1011, at least one secondary folding axis 1012 and a folding mechanism 102;

[0164] The at least one secondary folding axis 1012 is not intersected with each other, and the at least one secondary folding axis 1012 intersects with the main folding axis 1011 respectively and divides the frame plate 101 into a plurality of sub-frame plates 1013.

[0165] Among them, the main folding axis 1011 and the secondary folding axis 1012 are folding axes of the foldable device 1000, that is, the foldable device 1000 can be folded along the main folding axis 1011, and can also be folded along the secondary folding axis 1012. The at least one secondary folding axis 1012 intersects with the main folding axis 1011 respectively and divides the frame plate 101 into a plurality of sub-frame plates 1013, that is, the main folding axis 1011 divides the frame plate 101 into two parts, and the at least one secondary folding axis 1012 divides the two parts into a plurality of sub-frame plates 1013. For example, if it is one secondary folding axis 1012, the frame plate 101 is divided into 4 sub-frame plates 1013; if it is two secondary folding axes 1012, the frame plate 101 is divided into 6 sub-frame plates 1013.

[0166] The folding mechanism 102 comprises a first folding hinge 1021 and a second folding hinge 1022. At least one pair of adjacent sub-frame plates 1013 located on the main folding axis 1011 are connected by the first folding hinge 1021, and at least one pair of adjacent sub-frame plates 1013 located on the at least one secondary folding axis 1012 are connected by the second folding hinge 1022. Any sub-frame plate 1013 is connected to at least one first folding hinge 1021 or second folding hinge 1022. Taking one secondary folding axis 1012 as an example, the frame plate 101 is divided into four sub-frame plates 1013. There are two pairs of adjacent sub-frame plates 1013 located on the main folding axis 1011, and the adjacent sub-frame plates 1013 are located on both sides of the main folding axis 1011. There are two pairs of adjacent sub-frame plates 1013 located on the secondary folding axis 1012, and the adjacent sub-frame plates 1013 are located on both sides of the secondary folding axis 1012. Any sub-frame plate 1013 is connected to at least one first folding hinge 1021 or second folding hinge 1022, that is, at least one folding hinge is provided on the main folding axis 1011 and the secondary folding axis 1012 to connect any sub-frame plate 1013.

[0167] Specifically, one side of the other end of the first rotating part 10 of the first folding hinge 1021 is connected to one of the at least one pair of adjacent sub-frame plates 1013 located on the main folding axis 1011, and one side of the other end of the second rotating part 20 of the first folding hinge 1021 is connected to the other of the at least one pair of adjacent sub-frame plates 1013 located on the main folding axis 1011. One side of the other end of the first rotating part 10 of the second folding hinge 1022 is connected to one of the at least one pair of adjacent sub-frame plates 1013 located on the at least one secondary folding axis 1012, and one side of the other end of the second rotating part 20 of the second folding hinge 1022 is connected to the other of the at least one pair of adjacent sub-frame plates 1013 located on the at least one secondary folding axis 1012.

[0168] It should be noted that the main folding axis 1011 and the secondary folding axis 1012 are virtual axes generated during folding of the foldable device 1000. The foldable device 1000 is arranged such that the frame plate 101 is located on one side of the first folding hinge 1021 and the second folding hinge 1022, so that the sub-frame plate 1013 can be folded along the main folding axis 1011 and the secondary folding axis 1012. Moreover, the foldable device 1000 has not only a folding direction along the main folding axis 1011, but also a folding direction along the secondary folding axis 1012, and the main folding axis 1011 intersects the secondary folding axis 1012, so that the foldable device 1000 has at least two folding modes, thereby improving user experience.

[0169] In some embodiments, at least one pair of adjacent sub-frame plates 1013 located on the main folding axis 1011 are connected by two first folding hinges 1021; and the two first folding hinges 1021 are connected by a first base plate 1026.

[0170] The two first folding hinges 1021 can enhance the frictional damping force, and the two first folding hinges 1021 are connected by a first base plate 1026, thereby improving the stability of the foldable device 1000.

[0171] Please refer to Figure 18 , Figures 20 to 28 , Figure 20 a first angle view of the hinge structure of the foldable device 1000 provided by the present application, Figure 21 a second angle view of the hinge structure of the foldable device 1000 provided by the present application, Figure 20 a third angle view of the hinge structure of the foldable device 1000 provided by the present application, Figure 22 a fourth angle view of the hinge structure of the foldable device 1000 provided by the present application, Figure 23 a fifth angle view of the hinge structure of the foldable device 1000 provided by the present application, Figure 22 a sixth angle view of the hinge structure of the foldable device 1000 provided by the present application, Figure 24 a schematic view of a third rotating member 201 of the hinge structure of the foldable device 1000 provided by the present application, Figure 25 a schematic view of a fourth rotating member 202 of the hinge structure of the foldable device 1000 provided by the present application, Figure 26 a schematic view of the cooperation of the third rotating member 201 and the fourth rotating member 202 of the hinge structure of the foldable device 1000 provided by the present application, Figure 27 a first angle view of a second base 203 of the hinge structure of the foldable device 1000 provided by the present application, Figure 28 a second angle view of the second base 203 of the hinge structure of the foldable device 1000 provided by the present application.

[0172] Further, the folding mechanism 102 further comprises:

[0173] The hinge structure comprises: a third rotating piece 201, a fourth rotating piece 202, and a second base 203, one end of the third rotating piece 201 is rotationally connected with the second base 203, one end of the fourth rotating piece 202 is rotationally connected with the second base 203;

[0174] The at least one pair of adjacent sub-frame plates 1013 located on the main folding axis 1011 are connected by a first hinge structure 1024,

[0175] One side of the other end of the third rotating piece 201 of the first hinge structure 1024 is connected with one of the at least one pair of adjacent sub-frame plates 1013 located on the main folding axis 1011, and one side of the other end of the fourth rotating piece 202 of the first hinge structure 1024 is connected with the other of the at least one pair of adjacent sub-frame plates 1013 located on the main folding axis 1011.

[0176] Specifically, taking one sub-folding axis 1012 as an example, the frame plate 101 is divided into four sub-frame plates 1013, and the main folding axis 1011 has two pairs of adjacent sub-frame plates 1013, then one pair of adjacent sub-frame plates 1013 located on the main folding axis 1011 is connected by two first folding hinges 1021, and the other pair of adjacent sub-frame plates 1013 located on the main folding axis 1011 is connected by the first hinge structure 1024. Since the first hinge structure 1024 only plays a hinge role, and no damping mechanism is provided relative to the first folding hinge 1021, on the basis of the first folding hinge 1021 provided on the main folding axis 1011, the first hinge structure 1024 is additionally provided, the first folding hinge 1021 can ensure that the application can realize hovering, and the first hinge structure 1024 can improve the stability of the application in the direction of the main folding axis 1011, so that the number of the first folding hinge 1021 can be reduced, and the weight of the application can be reduced.

[0177] In some embodiments, the at least one pair of adjacent sub-frame plates 1013 located on the at least one sub-folding axis 1012 are connected by a second hinge structure 1023,

[0178] The other end of the third rotating piece 201 of the second hinge structure 1023 is connected with one of the at least one pair of adjacent sub-frame plates 1013 on the sub-folding axis 1012, and the other end of the fourth rotating piece 202 of the second hinge structure 1023 is connected with the other of the at least one pair of adjacent sub-frame plates 1013 on the sub-folding axis 1012.

[0179] The at least one pair of adjacent sub-frame plates 1013 on the sub-folding axis 1012 has two pairs of adjacent sub-frame plates 1013. Since the second hinge structure 1023 only serves as a hinge, and no damping mechanism is provided relative to the second folding hinge 1022, the second hinge structure 1023 is additionally provided on the basis of the second folding hinge 1022 on the sub-folding axis 1012. The second folding hinge 1022 can ensure that the application can be folded and suspended 1000, and the second hinge structure 1023 can improve the stability of the application foldable terminal in the direction of the sub-folding axis 1012, thereby reducing the number of second folding hinges 1022 and reducing the weight of the application foldable terminal.

[0180] Further, the at least one pair of adjacent sub-frame plates 1013 on the at least one sub-folding axis 1012 are connected by the second hinge structure 1023 and the second folding hinge 1022, and the first base 30 of the second folding hinge 1022 is connected with the second base 203 of the second hinge structure 1023 by a connecting plate. The sub-folding axis 1012 has two pairs of adjacent sub-frame plates 1013, and the two pairs of adjacent sub-frame plates 1013 or one pair of adjacent sub-frame plates 1013 on the sub-folding axis 1012 are connected by the second hinge structure 1023 and the second folding hinge 1022, and the first base 30 of the second folding hinge 1022 is connected with the second base 203 of the second hinge structure 1023 by a connecting plate, which can improve the stability of the application foldable terminal in the direction of the sub-folding axis 1012.

[0181] Specifically, the sub-folding axis 1012 is divided into a first folding section and a second folding section by the main folding axis 1011, a pair of adjacent sub-frame plates 1013 located on the first folding section are connected by the second hinge structure 1023 and the second folding hinge 1022, and a pair of adjacent sub-frame plates 1013 located on the second folding section are connected by the second hinge structure 1023 and the second folding hinge 1022; the first base 30 of the second folding hinge 1022 located on the first folding section is connected with the second base 203 of the second hinge structure 1023 located on the second folding section through the first connecting plate 1027; and the first base 30 of the second folding hinge 1022 located on the second folding section is connected with the second base 203 of the second hinge structure 1023 located on the second folding section through the second connecting plate 1028. That is, the sub-folding axis 1012 has two pairs of adjacent sub-frame plates 1013, and the two pairs of adjacent sub-frame plates 1013 on the sub-folding axis 1012 are connected by the second hinge structure 1023 and the second folding hinge 1022, respectively.

[0182] In some embodiments, the first connecting plate 1027 and the second connecting plate 1028 are connected by a third hinge structure 1025,

[0183] The other end of one side of the third rotating piece 201 of the third hinge structure 1025 is connected with the first connecting plate 1027, and the other end of one side of the fourth rotating piece 202 of the third hinge structure 1025 is connected with the second connecting plate 1028.

[0184] By connecting the first connecting plate 1027 and the second connecting plate 1028 by the third hinge structure 1025, the consistency of the two pairs of adjacent sub-frame plates 1013 located on the sub-folding axis 1012 during folding is improved, and the user experience is improved.

[0185] Please refer to Figures 16 to 19 , Figure 19 The folding shell of the foldable device 1000 provided in the present application is shown in the schematic view. Further, in some embodiments, the foldable device 1000 further comprises:

[0186] A first folding shell 106 is arranged in the bending area 1015 of the first folding section of the sub-folding axis 1012, the first folding shell 106 is arranged on the side of the first connecting plate 1027 close to the frame plate 101, and is connected with the first connecting plate 1027, the other end of one side of the third rotating piece 201 of the third hinge structure 1025, respectively;

[0187] The second folding shell 107 is arranged at the bending area 1015 of the second folding section of the secondary folding axis 1012, and is arranged at one side of the second connecting plate 1028 close to the frame plate 101, and is connected with the second connecting plate 1028 and one side of the other end of the fourth rotating piece 202 of the third hinge structure 1025.

[0188] The third folding shell 108 is arranged at one side of the third hinge structure 1025 close to the frame plate 101, and is connected with the second base 203 of the third hinge structure 1025.

[0189] The first folding shell 106, the second folding shell 107 and the third folding shell 108 are arranged to protect the bending area 1015 on the secondary folding axis 1012 and the third hinge structure 1025, and the first folding shell 106 is connected with the first connecting plate 1027, the second folding shell 107 is connected with the second connecting plate 1028, and the third hinge structure 1025 is connected with the first folding shell 106 and the second folding shell 107 respectively, so that the third hinge structure 1025 connects the first connecting plate 1027 and the second connecting plate 1028.

[0190] Further, the plurality of sub-frame plates 1013 are provided with first accommodating cavities 1016 at positions corresponding to the first folding shell 106, the second folding shell 107 and the third folding shell 108 on the secondary folding axis 1012, and the first accommodating cavities 1016 are used to accommodate the first folding shell 106, the second folding shell 107 and the third folding shell 108, which is beneficial to reduce the overall thickness.

[0191] Please refer to Figures 16 to 19 Further, in some embodiments, the main folding axis 1011 is divided into a plurality of main folding sections by the secondary folding axis 1012, and the bending area 1014 of each folding section of the main folding axis 1011 is provided with a main folding shell 109 connected with the first base 30 of the first folding hinge 1021 or the second base 203 of the second hinge structure 1024. The main folding shell 109 protects the bending area 1014 on the main folding axis 1011.

[0192] Further, the plurality of sub-frame plates 1013 are provided with second accommodating cavities 1017 at positions corresponding to the main folding shell 109 on the main folding axis 1011, and the second accommodating cavities 1017 are used to accommodate the main folding shell 109, which is beneficial to reduce the overall thickness.

[0193] Please refer to Figures 15 to 17 Further, in some embodiments, the foldable device 1000 further comprises a protective shell 103, each of the sub-frame plates 1013 is provided with the protective shell 103, the protective shell 103 is connected with the sub-frame plate 1013, and the protective shell 103 is arranged on the side of the sub-frame plate away from the folding mechanism 102. The sub-frame plate 1013 can be protected by the protective shell 103, and the protective shell 103 and the sub-frame plate 1013 correspond one by one.

[0194] Please refer to Figures 20 to 29 In some embodiments, the second base 203 is provided with a third arc-shaped sliding rail 2031 or a third arc-shaped sliding groove 2011, and the third rotating member 201 is provided with the third arc-shaped sliding groove 2011 or the third arc-shaped sliding rail 2031 matched with the third arc-shaped sliding rail 2031 or the third arc-shaped sliding groove 2011. Specifically, the second base 203 is provided with the third arc-shaped sliding rail 2031, and the third rotating member 201 is provided with the third arc-shaped sliding groove 2011 matched with the third arc-shaped sliding rail 2031. The third arc-shaped sliding rail 2031 and the third arc-shaped sliding groove 2011 are matched to rotate one end of the third rotating member 201 to be connected to the second base 203. Of course, it is conceivable that the third rotating member 201 can also be rotatably connected to the second base 203 through a rotating shaft, so that one end of the third rotating member 201 is rotatably connected to the second base 203.

[0195] Further, one side of the second base 203 is provided with a third recessed cavity 2033, and two opposite side walls of the third recessed cavity 2033 are respectively provided with the third arc-shaped sliding rail 2031. Specifically, the third rotating member 201 comprises a third rotating block 2012 and a third rotating plate 2013, the third rotating block 2012 is fixed to one end of the third rotating plate 2013, the third rotating block 2012 is located in the third recessed cavity 2033, two sides of the third rotating block 2012 are respectively provided with the third arc-shaped sliding groove 2011 matched with the third arc-shaped sliding rail 2031, and the face close to the bottom of the third recessed cavity 2033 of the third rotating block 2012 is a circular arc surface 2014, so as to reduce the friction between the third rotating block 2012 and the third recessed cavity 2033. In addition, the bottom of the third recessed cavity 2033 is provided with a third through hole 2035, so as to further reduce the contact between the third rotating block 2012 and the third recessed cavity 2033, thereby further reducing the friction between the third rotating block 2012 and the third recessed cavity 2033.

[0196] In some embodiments, the second base 203 is provided with a fourth arc-shaped sliding rail 2032 or a fourth arc-shaped sliding groove 2021, and the fourth rotating member 202 is provided with the fourth arc-shaped sliding groove 2021 or the fourth arc-shaped sliding rail 2032 matched with the fourth arc-shaped sliding rail 2032 or the fourth arc-shaped sliding groove 2021. Specifically, the second base 203 is provided with the fourth arc-shaped sliding rail 2032, and the fourth rotating member 202 is provided with the fourth arc-shaped sliding groove 2021 matched with the fourth arc-shaped sliding rail 2032. The fourth arc-shaped sliding rail 2032 and the fourth arc-shaped sliding groove 2021 are matched to rotate one end of the fourth rotating member 202 to be connected to the second base 203. Of course, it is conceivable that the fourth rotating member 202 can also be rotatably connected to the second base 203 through a rotating shaft, so that one end of the fourth rotating member 202 is rotatably connected to the second base 203.

[0197] Further, one side of the second base 203 is provided with a fourth recessed cavity 2034, and two opposite side walls of the fourth recessed cavity 2034 are respectively provided with the fourth arc-shaped sliding rail 2032 or the fourth arc-shaped sliding groove 2021. Specifically, the fourth rotating member 202 includes a fourth rotating block 2022 and a fourth rotating plate 2023, the fourth rotating block 2022 is fixed at one end of the fourth rotating plate 2023, the fourth rotating block 2022 is located in the fourth recessed cavity 2034, two sides of the fourth rotating block 2022 are respectively provided with the fourth arc-shaped sliding groove 2021 matched with the fourth arc-shaped sliding rail 2032, and the face close to the bottom of the fourth recessed cavity 2034 of the fourth rotating block 2022 is a circular arc surface 2024, which can reduce the friction between the fourth rotating block 2022 and the fourth recessed cavity 2034. In addition, the bottom of the fourth recessed cavity 2034 is provided with a fourth through hole 2036, which can reduce the contact between the fourth rotating block 2022 and the fourth recessed cavity 2034, thereby further reducing the friction between the fourth rotating block 2022 and the fourth recessed cavity 2034.

[0198] In some embodiments, when the included angle between the third rotating member 201 and the fourth rotating member 202 is 180 degrees, one end of the third rotating member 201 abuts against one end of the fourth rotating member 202, and the included angle between the third rotating member 201 and the fourth rotating member 202 can be limited to 0-180 degrees to avoid excessive rotation. Specifically, the third cavity 2033 is in communication with the fourth cavity 2034, when the included angle between the third rotating member 201 and the fourth rotating member 202 is 180 degrees, one end of the third rotating block 2012 abuts against one end of the fourth rotating block 2022, and a third notch 2015 is arranged on the surface of the third rotating block 2012 in contact with the fourth rotating block 2022, and a third clamping block 2025 is arranged on the fourth rotating block 2022 and matched with the third notch 2015. The third rotating block 2012 and the fourth rotating block 2022 are clamped by the third notch 2015 and the third clamping block 2025, thereby limiting the included angle between the third rotating member 201 and the fourth rotating member 201 to 0-180 degrees. Further, a fourth notch 2026 is arranged on the surface of the fourth rotating block 2022 in contact with the third rotating block 2012, and a fourth clamping block 2016 is arranged on the third rotating block 2012 and matched with the fourth notch 2026.

[0199] Further, the hinge structure further comprises a third end cover 204 arranged on one side of the second base 203, and the third end cover 204 is connected with the third rotating member 201. Specifically, the second base 203 is provided with a third connecting through hole 2037 in communication with the third cavity 2033 on one side of the third end cover 204, and the third end cover 204 is connected with the third rotating member 201 through the third connecting through hole 2037. The third end cover 204 can prevent dust or impurities from entering the third cavity 2033.

[0200] In addition, the hinge structure further comprises a fourth end cover 205 arranged on one side of the second base 203, and the fourth end cover 205 is connected with the fourth rotating member 202. Specifically, the second base 203 is provided with a fourth connecting through hole 2038 in communication with the fourth cavity 2034 on one side of the fourth end cover 205, and the fourth end cover 205 is connected with the fourth rotating member 202 through the fourth connecting through hole 2038. The fourth end cover 205 can prevent dust or impurities from entering the fourth cavity 2034.

[0201] Please refer to Figures 20 to 29 , Figure 29FIG. 6 is a schematic view of a second synchronization mechanism 206 of a hinge structure of a foldable device 1000 provided in the present application. In some embodiments, the hinge structure further comprises: a second synchronization mechanism 206 connected between the third rotating member 201 and the fourth rotating member 202, the first synchronization mechanism 80 enabling the third rotating member 201 and the fourth rotating member 202 to synchronously rotate in the same direction or in opposite directions.

[0202] The present application enables the third rotating member 201 and the fourth rotating member 202 to synchronously rotate in the same direction or in opposite directions by providing the second synchronization mechanism 206, so that the third rotating member 201 and the fourth rotating member 202 maintain the same rotation angle.

[0203] Further, the second synchronization mechanism 206 comprises: a third connecting rod 2061, one end of the third connecting rod 2061 being hingedly connected with the third rotating member 201, the other end of the third connecting rod 2061 being hingedly connected with the fourth rotating member 202. The third connecting rod 2061 drives the third rotating member 201 and the fourth rotating member 202 to synchronously rotate in the same direction or in opposite directions. Specifically, one end of the third connecting rod 2061 is hingedly connected with the third rotating plate 2013 of the third rotating member 201, the other end of the third connecting rod 2061 is hingedly connected with the fourth rotating plate 2023 of the fourth rotating member 202.

[0204] Still further, the second synchronization mechanism 206 further comprises: a third eccentric shaft 2062 and a fourth eccentric shaft 2063; the third eccentric shaft 2062 is provided on the third rotating member 201 in axial parallel with the rotation center of the third rotating member 201 rotating around the second base 203; the fourth eccentric shaft 2063 is provided on the fourth rotating member 202 in axial parallel with the rotation center of the fourth rotating member 202 rotating around the second base 203; wherein one end of the third connecting rod 2061 is hingedly connected with the third eccentric shaft 2062, the other end of the third connecting rod 2061 is hingedly connected with the fourth eccentric shaft 2063.

[0205] Please refer to Figure 16 and Figure 30 , Figure 30 FIG. 7 is a schematic view of a display panel 104 of a display device provided in the present application.

[0206] Correspondingly, the embodiments of the present application further provide a display device, the display device further comprising: the foldable device 1000 as described above;

[0207] A display panel 104 is arranged on one side of the frame plate 101 of the foldable device 1000; in particular, the display panel 104 is arranged on the side of the frame plate 101 close to the folding mechanism 102.

[0208] The display panel 104 comprises a steel sheet layer 1041, a support film layer 1042, an OLED light-emitting layer 1043, a polaroid 1044, a second optically transparent adhesive layer 1045, an ultrathin glass 1046, a first optically transparent adhesive layer 1047, and a protective film layer 1048 arranged in sequence.

[0209] The ultrathin glass layer 1046 is provided with a first thinning area 10461 in the bending area of the main folding axis 1011 and the secondary folding axis 1012.

[0210] The first thinning area 10461 is located on the side of the ultrathin glass layer 1046 close to the first optically transparent adhesive layer 1047, a thickness compensation coating 1049 is arranged between the ultrathin glass 1046 and the first optically transparent adhesive layer 1047, and the thickness compensation coating 1049 fills the first thinning area 10461. The material of the thickness compensation coating 1049 comprises any one of polyimide, polyurethane, polymethyl methacrylate, and resin. The refractive index of the material of the thickness compensation coating 1049 is close to the refractive index of the ultrathin glass, so that the optical anomaly of the first thinning area 10461 can be avoided by arranging the thickness compensation coating 1049.

[0211] The application locally thins the ultrathin glass layer, the first thinning area 10461 is arranged corresponding to the bending area, and the first thinning area 10461 forms a cross-shaped thinning area at the intersection of the main folding axis 1011 and the secondary folding axis 1012, thereby improving the bending performance of the ultrathin glass 1046 in the bending area and ensuring the overall mechanical performance.

[0212] Further, the steel sheet layer 1041 is provided with a second thinning area 10411 in the bending area of the main folding axis 1011 and the secondary folding axis 1012. The application locally thins the steel sheet layer, the second thinning area 10411 corresponds to the bending area, and the second thinning area 10411 forms a cross-shaped thinning area at the intersection of the main folding axis 1011 and the secondary folding axis 1012, thereby improving the bending performance of the steel sheet layer 1041 in the bending area and ensuring the overall mechanical performance.

[0213] Compared with the prior art, the display device provided by the embodiment of the application has the same beneficial effects as the foldable device 1000 provided by the above technical solution, and thus will not be described here.

[0214] In some embodiments, the display device further comprises:

[0215] A pressing strip 105 is arranged on the display panel 104, and the pressing strip 105 is adhesively connected with the frame plate 101. The display panel 104 and the frame plate 101 are fixed by the pressing strip 105.

[0216] The above describes in detail the foldable device and the display device provided by the embodiments of the present application. The principles and implementation manners of the present application are described by applying specific examples. The above description of the embodiments is only used to help understand the method of the present application and its core idea. Meanwhile, for those skilled in the art, the specific implementation manners and application ranges will be changed according to the idea of the present application. In conclusion, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A foldable device, characterized by The frame plate comprises: a main folding axis; at least one sub-folding axis, the at least one sub-folding axis being non-intersecting, the at least one sub-folding axis respectively intersecting the main folding axis and dividing the frame plate into a plurality of sub-frame plates; a folding mechanism, the folding mechanism comprising a first folding hinge and a second folding hinge; at least one pair of adjacent sub-frame plates located on the main folding axis are connected by the first folding hinge, at least one pair of adjacent sub-frame plates located on the at least one sub-folding axis are connected by the second folding hinge, and any sub-frame plate is connected with at least one of the first folding hinge or the second folding hinge; the first folding hinge and the second folding hinge comprise: a first rotating member; a second rotating member; a first base, one end of the first rotating member is rotationally connected with the first base, and one end of the second rotating member is rotationally connected with the first base; a first damping mechanism, the first damping mechanism is respectively connected with the first base and the first rotating member; a second damping mechanism, the second damping mechanism is respectively connected with the first base and the second rotating member; wherein, when the first rotating member is rotated relative to the first base from a first position to a second position under the action of an external force, the first damping mechanism generates a damping force that hinders the rotation of the first rotating member, and when the external force disappears, the first damping mechanism keeps the first rotating member at the second position; when the second rotating member is rotated relative to the first base from a third position to a fourth position under the action of an external force, the second damping mechanism generates a damping force that hinders the rotation of the second rotating member, and when the external force disappears, the second damping mechanism keeps the second rotating member at the fourth position; the folding mechanism further comprises: a hinge structure, the hinge structure comprising: a third rotating member, a fourth rotating member and a second base, one end of the third rotating member is rotationally connected with the second base, and one end of the fourth rotating member is rotationally connected with the second base; the at least one pair of adjacent sub-frame plates located on the at least one sub-folding axis are connected by the second hinge structure and the second folding hinge, and the first base of the second folding hinge is fixedly connected with the second base of the second hinge structure through a connecting plate. the other end of the first rotating member of the first folding hinge is connected with one of the at least one pair of adjacent sub-frame plates located on the main folding axis on one side, and the other end of the second rotating member of the first folding hinge is connected with the other of the at least one pair of adjacent sub-frame plates located on the main folding axis on one side; 2. The foldable device of claim 1, wherein, the other end of the first rotating member of the second folding hinge is connected with one of the at least one pair of adjacent sub-frame plates located on the at least one sub-folding axis on one side, and the other end of the second rotating member of the second folding hinge is connected with the other of the at least one pair of adjacent sub-frame plates located on the at least one sub-folding axis on one side. the first damping mechanism comprises:

3. The foldable device of claim 2, wherein, a first rotating shaft, the first rotating shaft is arranged on the first base; ​ A first movable part, one end of the first movable part is rotatably connected to the first rotating shaft, the other end of the first movable part is connected to the first rotating part; A first damping part, the first damping part is arranged on the first rotating shaft; When the first rotating part is rotated relative to the first base from the first position to the second position under the action of an external force, the first movable part and the first damping part are relatively rotated and generate a friction damping force.

4. The foldable device of claim 3, wherein, When the first rotating part is rotated relative to the first base from the first position to the second position under the action of an external force, the first movable part and the first damping part are relatively rotated to a set position, and a friction damping force is generated between the first movable part and the first damping part; when the external force disappears, the first movable part keeps the first rotating part at the second position.

5. The foldable device of claim 3, wherein, The first damping part comprises: A first sliding block, the first sliding block is slidably arranged on the first rotating shaft; A first elastic member, the first elastic member is arranged between the first sliding block and the first base; When the first rotating part is rotated relative to the first base from the first position to the second position under the action of an external force, the first movable part and the first sliding block are relatively rotated and press the first elastic member, and the first elastic member makes the first movable part and the first sliding block generate a friction damping force.

6. The foldable device of claim 2, wherein, The second damping mechanism comprises: A second rotating shaft, the second rotating shaft is arranged on the first base; A second movable part, two ends of the second movable part are rotatably connected to the second rotating shaft, the other end of the second movable part is connected to the second rotating part; A second damping part, the second damping part is arranged on the second rotating shaft; When the second rotating part is rotated relative to the first base from the third position to the fourth position under the action of an external force, the second movable part and the second damping part are relatively rotated and generate a friction damping force.

7. The foldable device of claim 6, wherein, When the second rotating part is rotated relative to the first base from the third position to the fourth position under the action of an external force, the second movable part and the second damping part are relatively rotated to a set position, and a friction damping force is generated between the second movable part and the second damping part; when the external force disappears, the friction damping force keeps the second rotating part at the fourth position.

8. The foldable device of claim 6, wherein, The second damping part comprises: A second sliding block, the second sliding block is slidably arranged on the second rotating shaft; A second elastic member, the second elastic member is arranged between the second sliding block and the first base; when the second rotating part is rotated relative to the first base from the third position to the fourth position under the action of an external force, the second movable part and the second sliding block are relatively rotated and press the second elastic member, and the second elastic member makes the second movable part and the second sliding block generate a friction damping force.

9. The foldable device of claim 2, wherein, At least one pair of adjacent sub-frame plates located on the main folding axis are connected by two first folding hinges; The two first folding hinges are connected by a first base plate.

10. The foldable device of claim 2, wherein, The at least one pair of adjacent sub-frame plates located on the main folding axis are connected by a first hinge structure, One side of the other end of the third rotating piece of the first hinge structure is connected with one of the at least one pair of adjacent sub-frame plates located on the main folding axis, and one side of the other end of the fourth rotating piece of the first hinge structure is connected with the other of the at least one pair of adjacent sub-frame plates located on the main folding axis.

11. The foldable device of claim 2, wherein, The at least one pair of adjacent sub-frame plates located on the at least one secondary folding axis are connected through a second hinge structure, One side of the other end of the third rotating piece of the second hinge structure is connected with one of the at least one pair of adjacent sub-frame plates located on the secondary folding axis, and one side of the other end of the fourth rotating piece of the second hinge structure is connected with the other of the at least one pair of adjacent sub-frame plates located on the secondary folding axis.

12. The foldable device of claim 11, wherein, The secondary folding axis is divided into a first folding section and a second folding section by the main folding axis, one pair of adjacent sub-frame plates located on the first folding section are connected through the second hinge structure and the second folding hinge, and one pair of adjacent sub-frame plates located on the second folding section are connected through the second hinge structure and the second folding hinge; a first base of the second folding hinge located on the first folding section is connected with a second base of the second hinge structure located on the second folding section through a first connecting plate; A first base of the second folding hinge located on the second folding section is connected with a second base of the second hinge structure located on the second folding section through a second connecting plate.

13. The foldable device of claim 12, wherein, The first connecting plate and the second connecting plate are connected through a third hinge structure, One side of the other end of the third rotating piece of the third hinge structure is connected with the first connecting plate, and one side of the other end of the fourth rotating piece of the third hinge structure is connected with the second connecting plate.

14. The foldable device of claim 13, wherein, The foldable device further comprises: A first folding shell is arranged in a bending area of the first folding section of the secondary folding axis, is arranged on a side of the first connecting plate close to the frame plate, and is connected with one side of the other end of the third rotating piece of the third hinge structure and the first connecting plate respectively; A second folding shell is arranged in a bending area of the second folding section of the secondary folding axis, is arranged on a side of the second connecting plate close to the frame plate, and is connected with one side of the other end of the fourth rotating piece of the third hinge structure and the second connecting plate; A third folding shell is arranged on a side of the third hinge structure close to the frame plate, and is connected with the second base of the third hinge structure.

15. The foldable device of claim 10, wherein, The hinge structure further comprises: A second synchronization mechanism is connected between the third rotating piece and the fourth rotating piece, and the first synchronization mechanism enables the third rotating piece and the fourth rotating piece to synchronously rotate in the same direction or in opposite directions.

16. The foldable device of claim 15, wherein, The second synchronization mechanism comprises: A third connecting rod is hingedly connected at one end with the third rotating piece and at the other end with the fourth rotating piece.

17. The foldable device of claim 16, wherein, The second synchronization mechanism further comprises: a third eccentric shaft provided on the third rotating member in parallel with the rotation center axis of the third rotating member; a fourth eccentric shaft provided on the fourth rotating member in parallel with the rotation center axis of the fourth rotating member; wherein one end of the third connecting rod is hingedly connected to the third eccentric shaft, and the other end of the third connecting rod is hingedly connected to the fourth eccentric shaft.

18. A display device comprising: comprising: the foldable device of any one of claims 1 to 17; a display panel provided on one side of the frame plate of the foldable device.

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