Folding assembly, folding device and terminal equipment

Abstract

The embodiments of the present application relate to the technical field of foldable electronic devices, and provide a folding assembly, a folding device, and a terminal device, wherein the folding assembly includes a base, a first fixing member, a second fixing member, a first main swing arm, a second main swing arm, a first support member, and a second support member; when the folding assembly switches from an unfolded state to a folded state, the first main swing arm rotates relative to the first fixing member and slides and rotates relative to the first support member, and the second main swing arm rotates relative to the second fixing member and slides and rotates relative to the first support member, so that when the folding assembly is in a folded state, the first support surface and the second support surface are arranged opposite to each other and form an angle, and the distance between the edges of the first support surface and the second support surface close to the base is greater than the distance between the edges of the first support surface and the second support surface away from the base. The embodiments of the present application can effectively reduce the possibility of damage to the foldable part of the folding screen due to excessive folding deformation.

Description

Technical Field

[0001] The present application relates to the technical field of foldable electronic devices, and in particular to a folding component, a folding device and a terminal device. Background Art

[0002] Foldable electronic devices refer to electronic devices that can be folded and unfolded, such as foldable screen mobile phones, foldable screen tablets, foldable screen laptops, etc. Foldable electronic devices generally include a body and a flexible display screen arranged on the body. The body can be folded or unfolded through its folding mechanism, and the flexible display screen can be folded or unfolded together with the body by bending its flexible deformable parts.

[0003] However, during the folding and unfolding process of the flexible display screen, the flexibly deformable portion of the flexible display screen is easily affected by the force of the folding mechanism (eg, pulled, squeezed, etc.), and thus easily damaged. Summary of the invention

[0004] The embodiments of the present application provide a folding assembly, a folding device and a terminal device, which can improve the technical problem in the related art that the flexibly deformable part of the flexible display screen is easily damaged by the force of the folding mechanism.

[0005] To achieve the above purpose, the embodiment of the present application adopts the following technical solution:

[0006] In a first aspect, an embodiment of the present application provides a folding assembly, the folding assembly comprising:

[0007] Base;

[0008] A first fixing member and a second fixing member are respectively located on two sides of the base;

[0009] a first main swing arm and a second main swing arm, wherein the first main swing arm is rotatably connected to the base and the first fixing member respectively; and the second main swing arm is rotatably connected to the base and the second fixing member respectively; and

[0010] a first support member and a second support member, wherein the first support member is rotatably connected to the first fixing member, and is slidably connected and rotatably connected to the first main swing arm, and the first support member includes a first support surface; the second support member is rotatably connected to the second fixing member, and is slidably connected and rotatably connected to the second main swing arm, and the second support member includes a second support surface;

[0011] Wherein, the first fixing member and the second fixing member can rotate relative to each other based on the base so that the folding component can switch between the unfolded state and the folded state; when the folding component switches from the unfolded state to the folded state, the first fixing member drives the first main swing arm and the first support member to rotate relative to the base, the first main swing arm rotates relative to the first fixing member and slides and rotates relative to the first support member; the second fixing member drives the second main swing arm and the second support member to rotate relative to the base, the second main swing arm rotates relative to the second fixing member and slides and rotates relative to the first support member, so that when the folding component is in the folded state, the first support surface and the second support surface are arranged opposite to each other and form an angle, and the distance between the edge of the first support surface close to the base and the edge of the second support surface close to the base is a first distance, the distance between the edge of the first support surface away from the base and the edge of the second support surface away from the base is a second distance, and the first distance is greater than the second distance.

[0012] The above technical solutions in the embodiments of the present application have at least the following technical effects or advantages:

[0013] The folding assembly provided in the embodiment of the present application is that when the first fixing member and the second fixing member rotate relative to each other based on the base to switch the folding assembly from the unfolded state to the folded state, the first main swing arm rotates relative to the first fixing member and slides and rotates relative to the first support member, and the second main swing arm rotates relative to the second fixing member and slides and rotates relative to the first support member. Therefore, when the folding assembly is in the folded state, the first support surface and the second support surface are arranged relative to each other and form an angle, and a first distance between the edges of the first support surface and the second support surface close to the base is greater than a second distance between the edges away from the base. Therefore, a space can be formed between the first support surface and the second support surface, in which the side close to the base is larger than the side away from the base, which can accommodate the foldable part of the foldable screen, so that the foldable part can be roughly teardrop-shaped without being completely folded in half, and the possibility of damage to the foldable part of the foldable screen due to excessive folding deformation can be effectively reduced.

[0014] In addition, since the first main swing arm is slidably and rotatably connected to the first support member, that is, the first support member is driven to move by the first main swing arm, and the second main swing arm is slidably and rotatably connected to the second support member, that is, the second support member is driven to move by the second main swing arm, compared with driving the first support member to move by the first auxiliary swing arm rotatably connected to the base and slidably connected to the first fixed member, and compared with driving the second support member to move by the second auxiliary swing arm rotatably connected to the base and slidably connected to the second fixed member, it is beneficial to reduce the relative sliding stroke of the first support member and the first main swing arm, and reduce the relative sliding stroke of the second support member and the second main swing arm, thereby helping to improve the compactness of the structure and reduce the size.

[0015] In some embodiments of the first aspect, the first support member is provided with a first sliding portion, and the first main swing arm is provided with a first sliding matching portion; one of the first sliding portion and the first sliding matching portion includes a first track groove, and the other includes a first sliding body; the first sliding body is slidably matched with the first track groove, so that the first main swing arm and the first support member can slide and rotate relative to each other;

[0016] A second sliding portion is provided on the second support member, and a second sliding matching portion is provided on the second main swing arm; one of the second sliding portion and the second sliding matching portion includes a second track groove, and the other includes a second sliding body; the second sliding body is slidingly matched with the second track groove so that the second main swing arm and the second support member can slide and rotate relative to each other.

[0017] In some embodiments of the first aspect, the first track groove includes a first slide groove and a second slide groove, the second slide groove is located at one side of the first slide groove and is connected to the first slide groove; when the folding assembly is in the unfolded state, the first sliding body is located in the first slide groove; when the folding assembly is in the folded state, the first sliding body is located in the second slide groove;

[0018] The second track groove includes a third slide groove and a fourth slide groove, the fourth slide groove is located on one side of the third slide groove and is connected to the third slide groove; when the folding component is in the unfolded state, the second sliding body is located in the third slide groove; when the folding component is in the folded state, the second sliding body is located in the fourth slide groove.

[0019] In some embodiments of the first aspect, when the folding assembly is in the unfolded state, the second slide groove is located on a side of the first slide groove facing the base, and the fourth slide groove is located on a side of the third slide groove facing the base.

[0020] In some embodiments of the first aspect, the length of the first slide groove is greater than the length of the second slide groove; the length of the third slide groove is greater than the length of the fourth slide groove.

[0021] In some embodiments of the first aspect, the first slide groove and the second slide groove form an L-shape; the third slide groove and the fourth slide groove form an L-shape.

[0022] In some embodiments of the first aspect, the first sliding portion is located on a side of the first support member facing the first main swing arm; along the direction of the rotation axis of the first main swing arm rotatably connected to the base, the first main swing arm and the first sliding portion are sequentially arranged; the first sliding fitting portion is located on a side of the first main swing arm facing the first sliding portion;

[0023] The second sliding portion is located on the side of the second support member facing the second main swing arm; along the direction of the rotation axis of the second main swing arm and the base, the second main swing arm and the second sliding portion are arranged in sequence; the second sliding fitting portion is located on the side of the second main swing arm facing the second sliding portion.

[0024] In some embodiments of the first aspect, a first groove is formed on the first fixing member, and the first groove passes through a side of the first fixing member facing the base; along the direction of the rotation axis of the first main swing arm rotatably connected to the base, the first groove passes through opposite ends of the first fixing member; and the first support member is at least partially located in the first groove;

[0025] A second groove is provided on the second fixing member, and the second groove passes through the side of the second fixing member facing the base; along the direction of the rotation axis of the second main swing arm rotatably connected to the base, the second groove passes through the opposite ends of the second fixing member; the second support member is at least partially located in the second groove.

[0026] In some embodiments of the first aspect, the first groove includes a first inner bottom surface, and the first inner bottom surface is arranged opposite to the first support member; when the folding assembly is in the unfolded state, the first inner bottom surface and the first support surface form an angle, and a first gap is formed between the first inner bottom surface and the first support member;

[0027] The second groove includes a second inner bottom surface, which is arranged opposite to the second support member; when the folding assembly is in the unfolded state, the second inner bottom surface and the second support surface form an angle, and a second gap is formed between the second inner bottom surface and the second support member.

[0028] In some embodiments of the first aspect, the first fixing member includes a third supporting surface, and the third supporting surface is located on a side of the first groove facing away from the base; when the folding assembly is in the unfolded state, the third supporting surface is flush with the first supporting surface and / or the second supporting surface;

[0029] The second fixing member includes a fourth supporting surface, and the fourth supporting surface is located on the side of the second groove facing away from the base; when the folding assembly is in the unfolded state, the fourth supporting surface is flush with the second supporting surface and / or the first supporting surface.

[0030] In some embodiments of the first aspect, the base includes a first support portion, the first support portion being used to support the first support member when the folding assembly is in the unfolded state;

[0031] The base includes a second supporting portion, and the second supporting portion is used to support the second supporting member when the folding assembly is in the unfolded state.

[0032] In some embodiments of the first aspect, a first limiting groove is formed on the base, and when the folding assembly is in the unfolded state, the first support member extends into the first limiting groove; and the inner bottom wall of the first limiting groove includes the first supporting portion;

[0033] A second limiting groove is provided on the base, and when the folding assembly is in the unfolded state, the second supporting member extends into the second limiting groove; the inner bottom wall of the second limiting groove includes the second supporting portion.

[0034] In some embodiments of the first aspect, the base includes a fifth supporting surface, which is located between the first limiting groove and the second limiting groove; when the folding assembly is in the unfolded state, the fifth supporting surface is flush with the first supporting surface and / or the second supporting surface.

[0035] In some embodiments of the first aspect, the folding assembly further includes a first auxiliary swing arm and a second auxiliary swing arm; the first auxiliary swing arm is rotatably connected to the base and is slidably connected to the first fixing member; the second auxiliary swing arm is rotatably connected to the base and is slidably connected to the second fixing member;

[0036] The folding assembly further comprises a door panel; when the folding assembly is in the unfolded state, the door panel is located between the first support member and the second support member;

[0037] The door panel is provided with a first matching portion and a second matching portion, the first sub-swing arm is provided with a first pushing portion, and the second sub-swing arm is provided with a second pushing portion; when the folding assembly switches from the unfolded state to the folded state, the first pushing portion abuts against a first portion of the first matching portion, and the second pushing portion abuts against a second portion of the second matching portion, so as to push the door panel to move toward the base; when the folding assembly switches from the folded state to the unfolded state, the first pushing portion abuts against a third portion of the first matching portion, and the second pushing portion abuts against a fourth portion of the second matching portion, so as to push the door panel to move back toward the base.

[0038] In some embodiments of the first aspect, the first matching portion and the second matching portion are located on a side of the door panel facing the base; a first matching groove is formed on the first matching portion, and an inner wall of the first matching groove includes the first portion and the third portion; a second matching groove is formed on the second matching portion, and an inner wall of the second matching groove includes the second portion and the fourth portion;

[0039] The first auxiliary swing arm is located at one side of the first matching portion; along the projection of the direction of the rotation axis of the first auxiliary swing arm, the first auxiliary swing arm and the first matching portion at least partially overlap; the first pushing portion is located at a side of the first auxiliary swing arm facing the first matching portion; the first pushing portion deviates from the rotation axis of the first auxiliary swing arm and is located in the first matching groove;

[0040] The second auxiliary swing arm is located on one side of the second matching portion; along the projection in the direction of the rotation axis of the second auxiliary swing arm, the second auxiliary swing arm and the second matching portion at least partially overlap; the second pushing portion is located on the side of the second auxiliary swing arm facing the second matching portion; the second pushing portion deviates from the rotation axis of the second auxiliary swing arm and is located in the second matching groove.

[0041] In some embodiments of the first aspect, the folding assembly further includes a third support member and a fourth support member; the third support member is disposed on the first main swing arm, and the third support member includes a sixth support surface; the fourth support member is disposed on the second main swing arm, and the fourth support member includes a seventh support surface;

[0042] When the folding component is in the unfolded state, the sixth support surface and the seventh support surface are located between the first support surface and the second support surface; when the folding component is in the folded state, the sixth support surface and the seventh support surface are arranged opposite to each other.

[0043] In some embodiments of the first aspect, when the folding component is in the folded state, the sixth support surface forms an angle with the seventh support surface, and the distance between the edge of the sixth support surface away from the first support member and the edge of the seventh support surface away from the second support member is a third distance, and the distance between the edge of the sixth support surface close to the first support member and the edge of the seventh support surface close to the second support member is a fourth distance, and the third distance is greater than the fourth distance.

[0044] In some embodiments of the first aspect, the first main swing arm is provided with a first arc-shaped arm, and the base is provided with a first arc-shaped groove, or the first main swing arm is provided with a first arc-shaped groove, and the base is provided with a first arc-shaped arm; the first arc-shaped arm and the first arc-shaped groove are slidably matched to enable the first main swing arm to be rotatably connected to the base;

[0045] The second main swing arm is provided with a second arc-shaped arm, and the base is provided with a second arc-shaped groove, or the second main swing arm is provided with a second arc-shaped groove, and the base is provided with a second arc-shaped arm; the second arc-shaped arm and the second arc-shaped groove are slidably matched to make the second main swing arm rotatably connected to the base.

[0046] In some embodiments of the first aspect, the first support member is provided with a third arc-shaped arm, and the first fixing member is provided with a third arc-shaped groove, or the first support member is provided with a third arc-shaped groove, and the first fixing member is provided with a third arc-shaped arm; the third arc-shaped arm and the third arc-shaped groove are slidably matched to enable the first support member to be rotatably connected to the first fixing member;

[0047] The second supporting member is provided with a fourth arc-shaped arm, and the second fixing member is provided with a fourth arc-shaped groove, or the second supporting member is provided with a fourth arc-shaped groove, and the second fixing member is provided with a fourth arc-shaped arm; the fourth arc-shaped arm and the fourth arc-shaped groove are slidably matched to enable the second supporting member to be rotatably connected with the second fixing member.

[0048] In a second aspect, an embodiment of the present application provides a folding device, the folding device comprising:

[0049] a first shell;

[0050] a second housing; and

[0051] In the folding assembly of any one of the embodiments of the first aspect above, the first fixing member is fixedly connected to the first shell, and the second fixing member is fixedly connected to the second shell.

[0052] In a third aspect, an embodiment of the present application provides a terminal device, the terminal device comprising:

[0053] The folding device of the second aspect above; and

[0054] A folding screen is arranged on the first shell and the second shell; the position of the foldable part of the folding screen corresponds to the position of the folding component.

[0055] It can be understood that the beneficial effects of the second and third aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 It is a schematic diagram of the structure of an electronic device in the related art in an unfolded state;

[0057] Figure 2 It is a schematic diagram of the structure of an electronic device in a folded state in the related art;

[0058] Figure 3 A schematic diagram of the structure of a terminal device provided in an embodiment of the present application when in an unfolded state;

[0059] Figure 4 for Figure 3A schematic diagram of the structure of the terminal device shown in the folded state;

[0060] Figure 5 A schematic diagram of the structure of a folding device provided in an embodiment of the present application;

[0061] Figure 6 A schematic diagram of the structure of the folding assembly provided in an embodiment of the present application when in an unfolded state;

[0062] Figure 7 for Figure 6 A front view of the foldable assembly shown in the unfolded state;

[0063] Figure 8 for Figure 6 A front view of the folding assembly shown in the folded state cooperating with the folding screen;

[0064] Fig. 9 for Figure 6 an exploded view of the folded assembly shown;

[0065] Fig.10 A schematic diagram of the structure of the first main swing arm and the third support member provided in the embodiment of the present application;

[0066] Fig.11 A schematic diagram of the structure of the second main swing arm and the fourth support member provided in the embodiment of the present application;

[0067] Fig.12 A schematic diagram of the structure of the first auxiliary swing arm and the first pushing part provided in the embodiment of the present application;

[0068] Fig.13 A schematic diagram of the structure of the second auxiliary swing arm and the second pushing part provided in the embodiment of the present application;

[0069] Fig.14 A schematic diagram of the structure of a first support member provided in an embodiment of the present application;

[0070] Fig.15 A schematic diagram of the structure of a second support member provided in an embodiment of the present application;

[0071] Fig.16 A cross-sectional schematic diagram of a foldable assembly provided in an embodiment of the present application in an unfolded state;

[0072] Fig.17 A schematic cross-sectional view of a folding assembly provided in an embodiment of the present application in an intermediate state between an unfolded state and a folded state;

[0073] Fig.18 A schematic cross-sectional view of a folding assembly provided in an embodiment of the present application in a folded state;

[0074] Fig.19A schematic diagram of the structure of a door panel provided in an embodiment of the present application;

[0075] Fig. 20 Another cross-sectional schematic diagram of the folding assembly provided in an embodiment of the present application in an unfolded state;

[0076] Fig.21 Another cross-sectional schematic diagram of the folding assembly provided in an embodiment of the present application in a folded state.

[0077] Among them, the reference numerals in the figure are:

[0078] 1. electronic device; 01. fuselage; 02. flexible display screen; 021. flexible deformable portion; 011. folding mechanism; 012. first side panel; 013. second side panel;

[0079] 10000, terminal device; 2000, folding screen; 2100, foldable part;

[0080] 1000, folding device; 200, first shell; 300, second shell; 201, first surface; 301, second surface;

[0081] 100, folding assembly; 10, base; 21, first fixing member; 22, second fixing member; 31, first main swing arm; 32, second main swing arm; 41, first supporting member; 42, second supporting member; 410, first supporting surface; 420, second supporting surface;

[0082] 312, first arc-shaped arm; 13, first arc-shaped slot; 322, second arc-shaped arm; 14, second arc-shaped slot; 412, third arc-shaped arm; 212, third arc-shaped slot; 422, fourth arc-shaped arm; 222, fourth arc-shaped slot; 81, first rotating shaft; 82, second rotating shaft; 15, shaft cover; 16, base; 150, accommodating space; 51, first auxiliary swing arm; 52, second auxiliary swing arm; 2101, first sliding space; 2201, second sliding space; 83, third rotating shaft; 84, fourth rotating shaft; 91, first gear; 92, second gear; 93, third gear; 94, fourth gear;

[0083] 411, first sliding part; 311, first sliding fitting part; 4111, first track groove; 3111, first sliding body; 421, second sliding part; 321, second sliding fitting part; 4211, second track groove; 3211, second sliding body; 41111, first slide groove; 41112, second slide groove; 42111, third slide groove; 42112, fourth slide groove; 4111a, first end; 4111b, second end; 4211a, third end; 4211b, fourth end;

[0084] 211, first groove; 221, second groove; 2111, first inner bottom surface; 2110, first gap; 2211, second inner bottom surface; 2210, second gap; 210, third support surface; 220, fourth support surface; 111, first support portion; 121, second support portion; 11, first limiting groove; 12, second limiting groove; 101, fifth support surface;

[0085] 60, door panel; 61, first matching portion; 62, second matching portion; 511, first pushing portion; 521, second pushing portion; 6111, first portion; 6211, second portion; 6112, third portion; 6212, fourth portion; 611, first matching groove; 621, second matching groove; 512, first connecting arm; 522, second connecting arm;

[0086] 71. Third support member; 72. Fourth support member; 710. Sixth support surface; 720. Seventh support surface. DETAILED DESCRIPTION

[0087] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0088] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "top", "bottom", "inside", "outside", "up", "down", "left", "right", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0089] The terms "first", "second", "third", "fourth", etc. are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. For example, the first support member and the second support member are only used to distinguish different support members, and their order is not limited. The first support member can also be named as the second support member, and the second support member can also be named as the first support member without departing from the scope of the various described embodiments. And the terms "first", "second", "third", "fourth", etc. do not limit the indicated features to be different.

[0090] In this application, unless otherwise clearly specified and defined, the terms "connected", "connected" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one. The relationship between the two components defined by the terms "connected", "connected", "fixed" and the like can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of the two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0091] In this application, "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships; for example, A and / or B can mean that A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0092] It should be noted that, in this application, words such as "in some embodiments", "exemplarily", "for example", etc. are used to indicate examples, illustrations or descriptions. Any embodiment or design described in this application as "in some embodiments", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in some embodiments", "exemplarily", "for example", etc. is intended to present related concepts in a specific way.

[0093] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0094] See also Figure 1 and Figure 2 , Figure 1 1 shows a front view of a foldable electronic device 1 in the related art in an unfolded state. Figure 2 Shows Figure 1 The front view of the electronic device 1 in the folded state. The electronic device 1 includes a body 01 and a flexible display screen 02 disposed on the body 01. The body 01 includes a folding mechanism 011, a first side panel 012, and a second side panel 013. The first side panel 012 and the second side panel 013 are respectively connected to the two sides of the folding mechanism 011, and can rotate between the unfolded state and the folded state based on the folding mechanism 011. The flexible display screen 02 is disposed on the first side panel 012 and the second side panel 013, so as to be folded or unfolded as the first side panel 012 and the second side panel 013 rotate.

[0095] contrast Figure 1 and Figure 2It can be seen that when the flexible display screen 02 is in a folded state, the flexible deformable portion 021 of the flexible display screen 02 will bend, and the folding mechanism 011 will exert force on the flexible deformable portion 021, which may cause the flexible deformable portion 021 to be pulled, squeezed, etc., which may easily cause the flexible deformable portion 021 to have defects such as arching and wrinkling, or even be damaged, affecting the appearance and service life of the flexible display screen 02 in the folded state, and further affecting the service life of the electronic device 1 and the user experience.

[0096] In view of this, an embodiment of the present application provides a folding component, a folding device including the folding component, and a terminal device including the folding device, which can improve the technical problem in the related art that the flexibly deformable part of the flexible display screen is easily damaged by the force of the folding mechanism.

[0097] The terminal device provided in the embodiment of the present application belongs to a foldable electronic device, that is, an electronic device that can be folded and unfolded. The terminal device can be a mobile phone, a tablet computer, a laptop computer (Laptop), a notebook computer (Notebook PC), a personal digital assistant (Personal Digital Assistant, PDA), a wearable device (such as a watch), a vehicle-mounted device, an augmented reality (Augmented Reality, AR) / virtual reality (Virtual Reality, VR) device, etc., but is not limited thereto. For ease of understanding, in the embodiment of the present application, the terminal device is a mobile phone as an example for introduction and explanation.

[0098] See also Figure 3 and Figure 4 , Figure 3 shows a schematic structural diagram of a terminal device 10000 provided in some embodiments of the present application in an unfolded state, Figure 4 Shows Figure 3 The schematic diagram of the structure of the terminal device 10000 in the folded state is shown. Under different usage requirements, the terminal device 10000 can be unfolded to the unfolded state, folded to the folded state, or in an intermediate state between the unfolded state and the folded state. It should be understood that the intermediate state can be any state of the terminal device 10000 between the unfolded state and the folded state, but not the only state.

[0099] The terminal device 10000 includes a folding device 1000 and a folding screen 2000, wherein the folding screen 2000 is arranged on the folding device 1000. The folding device 1000 can provide support and protection for the folding screen 2000, and can be folded or unfolded. The folding screen 2000 is a flexible screen, which can be folded or unfolded together with the folding device 1000. It can be understood that the folding screen 2000 can be used to display information and provide an interactive interface for the user, and can be a variety of types of display screens.

[0100] See also Figure 5 , Figure 5 The schematic diagram of the structure of the folding device 1000 provided in some embodiments of the present application is shown. The folding device 1000 includes a folding assembly 100, a first shell 200 and a second shell 300. The folding assembly 100 is located between the first shell 200 and the second shell 300, and is connected to the first shell 200 and the second shell 300 respectively. The first shell 200 and the second shell 300 can rotate relative to each other based on the folding assembly 100, so that they can be relatively close to each other and rotate to a folded state, or relatively far away from each other and rotate to an unfolded state.

[0101] It can be understood that the number of the folding components 100 can be one or more; when the number of the folding components 100 is multiple, the folding components 100 can be arranged in sequence and spaced apart, and all are located between the first shell 200 and the second shell 300.

[0102] Please continue reading Figure 3 and Figure 5 The folding screen 2000 is arranged on the first shell 200 and the second shell 300, and can be folded or unfolded as the first shell 200 and the second shell 300 rotate. The folding screen 2000 has a foldable portion 2100, and the position of the foldable portion 2100 corresponds to the position of the folding component 100, that is, the foldable portion 2100 is arranged opposite to the folding component 100. The foldable portion 2100 is flexible, so that when the first shell 200 and the second shell 300 rotate relative to each other, the folding screen 2000 can be folded by bending the foldable portion 2100. It can be understood that the portion of the folding screen 2000 corresponding to the first shell 200 can be flexible or rigid; the portion of the folding screen 2000 corresponding to the second shell 300 can be flexible or rigid.

[0103] Exemplarily, the terminal device 10000 may be an inward-folding terminal device, and the folding screen 2000 is an inward-folding folding screen. After the folding screen 2000 is folded, the display surface of the folding screen 2000 is located inside. The back of the folding screen 2000 is disposed on the first shell 200 and the second shell 300, and the display surface of the folding screen 2000 is exposed. Among them, the display surface of the folding screen 2000 is the side used to display images, and the back of the folding screen 2000 is the other side opposite to the display surface.

[0104] See also Figure 3 and Figure 5When the terminal device 10000 is in the unfolded state, the folding device 1000 and the folding screen 2000 are also in the unfolded state, and the first surface 201 of the first shell 200 for installing the folding screen 2000 and the second surface 301 of the second shell 300 for installing the folding screen 2000 are roughly in the same plane, that is, the angle between the first surface 201 and the second surface 301 is roughly 180°; at this time, the folding screen 2000 is roughly in a flat unfolded state, so that the terminal device 10000 has a larger display area. It should be understood that when the folding device 1000 is in the unfolded state, the angle between the first surface 201 and the second surface 301 is not limited to an absolute 180°. The angle between the two can also be greater than or less than 180°, but close to 180°. For example, the angle can range from 165 to 190° (for example, 170°, 173°, 175°, 182°, 185°, etc., but not limited to this), which can also achieve the unfolding of the folding screen 2000.

[0105] See also Figure 4 When the terminal device 10000 is in a folded state, the folding device 1000 and the folding screen 2000 are also in a folded state, and the first surface 201 of the first shell 200 for installing the folding screen 2000 and the second surface 301 of the second shell 300 for installing the folding screen 2000 are relatively arranged and approximately parallel, that is, the angle between the first surface 201 and the second surface 301 is approximately 0°; at this time, the folding screen 2000 is folded relative to the foldable portion 2100 and is in a folded state, and is located between the first shell 200 and the second shell 300, so as to facilitate the storage of the terminal device 10000 and reduce the possibility of the folding screen 2000 being damaged by the outside world. It should be understood that when the folding device 1000 is in the unfolded state, the first surface 201 and the second surface 301 are not limited to being absolutely parallel. The angle between the two can also be greater than 0°, but close to 0°. For example, the angle can range from 0° to 15 (for example, 1°, 2°, 3°, 5°, 10°, etc., but not limited to this), and the folding of the folding screen 2000 can also be achieved.

[0106] Optionally, at least one of the first shell 200 and the second shell 300 may be provided with an installation space for installing electronic components of the terminal device 10000. For example, the electronic components may include a circuit board, a battery, a receiver, a speaker, a camera, etc., but are not limited thereto. Among them, the circuit board can integrate the main controller, storage unit, antenna module, power management module and other electronic components of the terminal device 10000, and the battery can power the folding screen 2000, the circuit board, the receiver, the speaker, the camera and other electronic components. The shape and structure of the first shell 200 and the second shell 300 may be the same or different, and the embodiment of the present application is not limited thereto. The first shell 200 and the second shell 300 may be a middle frame structure.

[0107] Next, the folding assembly 100 provided in the embodiment of the present application will be introduced and described.

[0108] In order to facilitate the description of the embodiments below, an XYZ three-axis rectangular coordinate system is established, and the width direction of the folding component 100 is defined as the X-axis direction, which is parallel to the direction from the first shell 200 to the second shell 300 when the terminal device 10000 is in the unfolded state; the length direction of the folding component 100 is defined as the Y-axis direction, which is parallel to the direction from one side edge of the first shell 200 to the opposite other side edge when the terminal device 10000 is in the unfolded state; the thickness direction of the folding component 100 is defined as the Z-axis direction, which is parallel to the direction from the first shell 200 to the folding screen 2000 when the terminal device 10000 is in the unfolded state, that is, parallel to the thickness direction of the terminal device 10000. The X-axis direction, the Y-axis direction, and the Z-axis direction are mutually perpendicular. The X-axis direction includes the positive direction of the X-axis and the negative direction of the X-axis, and the Y-axis direction and the Z-axis direction are the same. It should be understood that the coordinate system of the folding component 100 can be flexibly set according to actual needs. This application only gives an example and cannot be considered as a special limitation to this application.

[0109] See also Figures 6 to 9 , Figure 6 1 shows a schematic diagram of a three-dimensional structure of a folding assembly 100 provided in some embodiments of the present application in an unfolded state. Figure 7 Shows Figure 6 The front view of the folding assembly 100 in the unfolded state is shown. Figure 8 Shows Figure 6 The front view of the folding assembly 100 when folded to the folded state and matched with the foldable part 2100 of the folding screen 2000, Fig. 9 Shows Figure 6 The exploded view of the folding assembly 100 is shown. The folding assembly 100 includes a base 10, a first fixing member 21, a second fixing member 22, a first main swing arm 31, a second main swing arm 32, a first support member 41 and a second support member 42, wherein:

[0110] The base 10 can support and connect the first main swing arm 31 and the second main swing arm 32, and can be a structure of various regular or irregular shapes, such as a block structure, a frame structure, a shell structure, a plate structure, etc., but is not limited thereto. The base 10 can be a single component or include multiple assembled components. In some cases, the base 10 is also called a main shaft, a main body, etc.

[0111] The first fixing member 21 and the second fixing member 22 are respectively located on both sides of the base 10. It should be understood that the two sides of the base 10 refer to the two sides with the central longitudinal section m of the base 10 as the dividing interface, and the central longitudinal section m is a plane parallel to the length direction (i.e., the Y-axis direction) and thickness direction (i.e., the Z-axis direction) of the base 10 and bisecting the base 10 along the width direction (i.e., the X-axis direction) of the base 10. The first fixing member 21 and the second fixing member 22 can be arranged opposite to each other, that is, they are at the same position along the length direction of the base 10; of course, in some cases, the first fixing member 21 and the second fixing member 22 may not be arranged opposite to each other, that is, they are staggered along the length direction of the base 10.

[0112] The first fixing member 21 is used to be fixedly connected to the first shell 200, and the second fixing member 22 is used to be fixedly connected to the second shell 300; when the first shell 200 and the second shell 300 rotate relative to each other, the first fixing member 21 and the second fixing member 22 are driven to rotate respectively. It can be understood that the first fixing member 21 and the first shell 200 can be separately formed and connected, for example, they can be connected by fasteners (such as bolts, screws, pins, rivets, etc.). Of course, in some other cases, the first fixing member 21 and the first shell 200 can also be an integral structure formed in one piece; similarly, the second fixing member 22 and the second shell 300 can be separately formed and connected, or they can be an integral structure formed in one piece. It can be understood that the first fixing member 21 and the second fixing member 22 can be various regular or irregular structural members, such as block structures, plate structures, etc., but are not limited thereto.

[0113] The first main swing arm 31 is rotatably connected to the base 10, and the first main swing arm 31 is rotatably connected to the first fixing member 21; the first fixing member 21 is rotatably connected to the base 10 through the first main swing arm 31. The manner in which the first main swing arm 31 is rotatably connected to the base 10 and the first fixing member 21 can be the same or different. The second main swing arm 32 is rotatably connected to the base 10, and the second main swing arm 32 is rotatably connected to the second fixing member 22; the second fixing member 22 is rotatably connected to the base 10 through the second main swing arm 32. The manner in which the second main swing arm 32 is rotatably connected to the base 10 and the second fixing member 22 can be the same or different. It can be understood that the first main swing arm 31 and the second main swing arm 32 can be swing arm structures of various shapes, and the shapes and structures of the first main swing arm 31 and the second main swing arm 32 can be the same or different, which is not limited in the embodiment of the present application.

[0114] Optionally, the opposite ends of the first main swing arm 31 may be rotatably connected to the base 10 and the first fixing member 21 respectively. Of course, the first main swing arm 31 is not limited to being rotatably connected to the base 10 or the first fixing member 21 through the end portion thereof, and may also be rotatably connected to the base 10 or the first fixing member 21 through other parts; similarly, the opposite ends of the second main swing arm 32 may be rotatably connected to the base 10 and the second fixing member 22 respectively. Of course, the second main swing arm 32 is not limited to being rotatably connected to the base 10 or the second fixing member 22 through the end portion thereof.

[0115] The first support member 41 is rotatably connected to the first fixing member 21, and the first support member 41 is slidably and rotatably connected to the first main swing arm 31, so that the first support member 41 and the first main swing arm 31 can slide and rotate relative to each other. The first support member 41 includes a first support surface 410, and the first support surface 410 is used to support the foldable part 2100 of the folding screen 2000. The second support member 42 is rotatably connected to the second fixing member 22, and the second support member 42 is slidably and rotatably connected to the second main swing arm 32, so that the second support member 42 and the second main swing arm 32 can slide and rotate relative to each other. The second support member 42 includes a second support surface 420, and the second support surface 420 is used to support the foldable part 2100 of the folding screen 2000. It can be understood that the first support member 41 and the second support member 42 can be structures of various shapes, for example, they can be plate-like structures or sheet-like structures, so as to form a first support surface 410 and a second support surface 420 with a certain area, which can better support the foldable part 2100; of course, in some other cases, the first support member 41 and the second support member 42 can also be structures of other shapes such as block structures.

[0116] The first fixing member 21 and the second fixing member 22 can rotate relative to each other based on the base 10 , so that the folding assembly 100 can be switched between the unfolded state and the folded state. When the folding assembly 100 switches from the unfolded state to the folded state, that is, when the first fixing member 21 and the second fixing member 22 relatively move toward each other or rotate toward each other, the first fixing member 21 drives the first main swing arm 31 and the first support member 41 to rotate relative to the base 10. During this process, the first main swing arm 31 rotates relative to the first fixing member 21, and the first main swing arm 31 and the first support member 41 slide and rotate relative to each other, that is, while the first main swing arm 31 rotates relative to the first fixing member 21, the first support member 41 is driven to slide and rotate relative to the first main swing arm 31 (because the first support member 41 is rotatably connected to the first fixing member 21, the first support member 41 is not easy to get stuck when sliding and rotating relative to the first main swing arm 31); the second fixing member 22 drives the second main swing arm 32 and the second support member 42 to rotate relative to the base 10. During this process, the second main swing arm 32 rotates relative to the second fixing member 22, and the second main swing arm 32 and the first support member 41 slide and rotate relative to each other. The support member 41 slides and rotates relatively, that is, the second main swing arm 32 rotates relative to the second fixing member 22, and the second support member 42 is driven to slide and rotate relative to the second main swing arm 32 (because the second support member 42 is rotatably connected to the second fixing member 22, the second support member 42 is not easy to get stuck when sliding and rotating relative to the second main swing arm 32), so that when the folding component 100 is in the folded state, the first support surface 410 and the second support surface 420 are arranged relative to each other and form an angle a (the angle a is greater than 0° and less than 180°, for example, it can be an acute angle, a right angle or an obtuse angle), and the distance between the edge of the first support surface 410 close to the base 10 and the edge of the second support surface 420 close to the base 10 is a first distance L1, and the distance between the edge of the first support surface 410 away from the base 10 and the edge of the second support surface 420 away from the base 10 is a second distance L2, and the first distance L1 is greater than the second distance L2, for example Figure 8 shown.

[0117] According to the above description, the folding assembly 100 provided in the embodiment of the present application is switched from the unfolded state to the folded state due to the relative rotation of the first fixing member 21 and the second fixing member 22 based on the base 10, the first main swing arm 31 rotates relative to the first fixing member 21 and slides and rotates relative to the first support member 41, and the second main swing arm 32 rotates relative to the second fixing member 22 and slides and rotates relative to the first support member 42, so that when the folding assembly 100 is in the folded state, the first support surface 410 and the second support surface 420 are arranged relative to each other and form an angle a, and the first support surface 410 and the second support surface 420 are close to the base 10. The first distance L1 between the edges is greater than the second distance L2 between the edges away from the base 10. Therefore, a space can be formed between the first support surface 410 and the second support surface 420, in which the side close to the base 10 is larger than the side away from the base 10, which can accommodate the foldable portion 2100 of the folding screen 2000, so that the foldable portion 2100 can be roughly teardrop-shaped without being completely folded in half, which can effectively reduce the possibility of damage to the foldable portion 2100 of the folding screen 2000 due to excessive folding deformation, which is beneficial to improving the appearance of the folding screen 2000 in the folded state, and is beneficial to improving the service life of the folding screen 2000 and the terminal device 10000.

[0118] In addition, since the first main swing arm 31 is slidably and rotatably connected to the first support member 41, that is, the first support member 41 is driven to move by the first main swing arm 31, and the second main swing arm 32 is slidably and rotatably connected to the second support member 42, that is, the second support member 42 is driven to move by the second main swing arm 32, compared with driving the first support member 41 to move by the first auxiliary swing arm rotatably connected to the base 10 and slidably connected to the first fixed member 21, and compared with driving the second support member 42 to move by the second auxiliary swing arm rotatably connected to the base 10 and slidably connected to the second fixed member 22, it is beneficial to reduce the relative sliding stroke of the first support member 41 and the first main swing arm 31, and reduce the relative sliding stroke of the second support member 42 and the second main swing arm 32, thereby improving the compactness of the structure and reducing the size, thereby facilitating the miniaturization and thinness of the folding component 100.

[0119] In some embodiments, see Figure 7 and Figure 8When the folding assembly 100 switches from the folded state to the unfolded state, that is, when the first fixing member 21 and the second fixing member 22 rotate away from each other or rotate away from each other, the first fixing member 21 drives the first main swing arm 31 and the first support member 41 to rotate relative to the base 10. During this process, the first main swing arm 31 rotates relative to the first fixing member 21, and the first main swing arm 31 and the first support member 41 slide and rotate relative to each other. That is, while the first main swing arm 31 rotates relative to the first fixing member 21, the first support member 41 is driven to slide and rotate relative to the first main swing arm 31; the second fixing member 22 drives the second main swing arm 32 and the second support member 42 to rotate relative to the base 10. During this process, the second main swing arm 32 rotates relative to the first fixing member 21. When the second fixing member 22 rotates, and the second main swing arm 32 slides and rotates relative to the first support member 41, that is, when the second main swing arm 32 rotates relative to the second fixing member 22, the second support member 42 is driven to slide and rotate relative to the second main swing arm 32, so that when the folding assembly 100 is in the unfolded state, the first support surface 410 and the second support surface 420 are flush, that is, roughly coplanar, but tolerance should be allowed, for example, the height difference between the first support surface 410 and the second support surface 420 can be 0mm to 5mm, and the angle between the first support surface 410 and the second support surface 420 can be 0° to 12° (for example, 1°, 2°, 3°, 5°, 10°, etc., but not limited thereto). In this way, when the folding assembly 100 is in the unfolded state, the flatness of the foldable part 2100 of the folding screen 2000 when supported on the first support surface 410 and the second support surface 420 is improved, and it is not easy to be dented or wrinkled, which can improve the display effect.

[0120] The following describes the manner in which the first main swing arm 31 and the second main swing arm 32 are rotatably connected to the base 10 .

[0121] In some embodiments, see Fig. 9 and Fig.10 , Fig.10 The schematic diagram of the structure of the first main swing arm 31 provided in the embodiment of the present application is shown in FIG. The first main swing arm 31 is provided with a first arc-shaped arm 312, and the first arc-shaped arm 312 is a roughly arc-shaped structure. The base 10 is provided with a first arc-shaped groove 13, and the first arc-shaped groove 13 is a roughly arc-shaped groove. The first arc-shaped arm 312 is slidably matched with the first arc-shaped groove 13 so that the first main swing arm 31 is rotationally connected to the base 10; therefore, the rotation axis of the first arc-shaped arm 312 is roughly coincident with the rotation axis of the first arc-shaped groove 13, and when the first arc-shaped arm 312 slides in the first arc-shaped groove 13 along the arc-shaped trajectory of the first arc-shaped groove 13, the first arc-shaped arm 312 rotates relative to the base 10. In this case, it can be regarded that the first main swing arm 31 is rotationally connected to the base 10 through a virtual axis.

[0122] Similarly, see Fig. 9 and Fig.11 , Fig.11 , a schematic diagram of the structure of the second main swing arm 32 provided in an embodiment of the present application is shown. A second arc-shaped arm 322 is provided on the second main swing arm 32, and a second arc-shaped groove 14 is provided on the base 10. The second arc-shaped arm 322 and the second arc-shaped groove 14 are slidably matched to make the second main swing arm 32 and the base 10 rotationally connected; therefore, the rotation axis of the second arc-shaped arm 322 and the rotation axis of the second arc-shaped groove 14 are roughly coincident, and when the second arc-shaped arm 322 slides in the second arc-shaped groove 14 along the arc-shaped trajectory of the second arc-shaped groove 14, the second arc-shaped arm 322 rotates relative to the base 10. In this case, it can be regarded that the second main swing arm 32 and the base 10 are rotationally connected through a virtual axis.

[0123] With such arrangement, when the folding assembly 100 switches from the unfolded state to the folded state, the first arc arm 312 can slide in the first arc groove 13 and partially extend to the outside, which is beneficial to drive the first support member 41 to move away from the base 10, and the second arc arm 322 can slide in the second arc groove 14 and partially extend to the outside, which is beneficial to drive the second support member 42 to move away from the base 10, thereby facilitating the increase of the space formed between the first support member 41, the second support member 42 and the base 10, that is, it can provide a larger accommodating space for the foldable portion 2100 of the folding screen 2000, so as to reduce the possibility of the foldable portion 2100 being squeezed and damaged.

[0124] It can be understood that in some other embodiments, the positions of the first arc-shaped arm 312 and the first arc-shaped slot 13 can be swapped, that is, the first main swing arm 31 can be provided with the first arc-shaped slot 13, and the base 10 can be provided with the first arc-shaped arm 312, and the first main swing arm 31 can also be rotatably connected to the base 10. Similarly, the positions of the second arc-shaped arm 322 and the second arc-shaped slot 14 can be swapped, that is, the second main swing arm 32 can be provided with the second arc-shaped slot 14, and the base 10 can be provided with the second arc-shaped arm 322.

[0125] It should be noted that the first main swing arm 31 and the base 10 are not limited to being rotationally connected through a virtual axis. In some other possible embodiments, the first main swing arm 31 and the base 10 may also be rotationally connected through an axis or a pin. The second main swing arm 32 and the base 10 are not limited to being rotationally connected through a virtual axis. In some other possible embodiments, the second main swing arm 32 and the base 10 may also be rotationally connected through an axis or a pin.

[0126] Optionally, in some embodiments, see Fig. 9 , along the length direction (i.e., the Y-axis direction) of the base 10, the first main swing arm 31 and the second main swing arm 32 are arranged in sequence, that is, the first main swing arm 31 and the second main swing arm 32 are staggered, rather than being in the same position. In this way, it is beneficial to reduce the width of the folding assembly 100 along the width direction (i.e., the X-axis direction) of the base 10.

[0127] Of course, in some other embodiments, along the length direction of the base 10 (ie, the Y-axis direction), the first main swing arm 31 and the second main swing arm 32 may also be in the same position, that is, they are roughly symmetrically arranged.

[0128] The following describes the manner in which the first main swing arm 31 is rotatably connected to the first fixing member 21 , and the manner in which the second main swing arm 32 is rotatably connected to the second fixing member 22 .

[0129] In some embodiments, see Fig. 9 and Fig.10 , the first main swing arm 31 and the first fixing member 21 can be rotatably connected via the first rotating shaft 81. Optionally, a first shaft hole can be provided on the first main swing arm 31, a second shaft hole can be provided on the first fixing member 21, and the first rotating shaft 81 can be matched with the first shaft hole and the second shaft hole, so that the first main swing arm 31 and the first fixing member 21 are rotatably connected via the first rotating shaft 81; of course, in some other cases, the first rotating shaft 81 can also be an integral structure formed integrally with one of the first main swing arm 31 and the first fixing member 21, and be rotatably connected with the other.

[0130] Similarly, see Fig. 9 and Fig.11 , the second main swing arm 32 and the second fixing member 22 can be rotatably connected via the second rotating shaft 82. Optionally, a third shaft hole can be provided on the second main swing arm 32, a fourth shaft hole can be provided on the second fixing member 22, and the second rotating shaft 82 can be matched with the third shaft hole and the fourth shaft hole, so that the second main swing arm 32 and the second fixing member 22 are rotatably connected via the second rotating shaft 82; of course, in some other cases, the second rotating shaft 82 can also be an integral structure formed integrally with one of the second main swing arm 32 and the second fixing member 22, and be rotatably connected with the other.

[0131] It should be noted that, in some other embodiments, the first main swing arm 31 and the first fixing member 21 may also be rotationally connected by means of a virtual axis; for example, an arc-shaped arm may be provided on the first main swing arm 31, and an arc-shaped groove may be provided on the first fixing member 21, or an arc-shaped groove may be provided on the first main swing arm 31, and an arc-shaped groove may be provided on the first fixing member 21, and the arc-shaped arm and the arc-shaped groove may be slidably matched to realize the rotational connection between the first main swing arm 31 and the first fixing member 21. Similarly, the second main swing arm 32 and the second fixing member 22 may also be rotationally connected by means of a virtual axis, and the specific connection method may refer to the connection between the first main swing arm 31 and the first fixing member 21, which will not be described in detail here.

[0132] In order to improve the stability of the relative rotation of the first fixing member 21 and the second fixing member 22, in some embodiments, refer to Fig. 9 , Fig.12and Fig.13 , Fig.12 , which is a schematic structural diagram of the first auxiliary swing arm 51 provided in an embodiment of the present application, Fig.13 The schematic diagram of the structure of the second auxiliary swing arm 52 provided in the embodiment of the present application is shown in FIG. The folding assembly 100 also includes a first auxiliary swing arm 51 and a second auxiliary swing arm 52. The first auxiliary swing arm 51 and the second auxiliary swing arm 52 can be swing arm structures of various shapes. The shapes and structures of the first auxiliary swing arm 51 and the second auxiliary swing arm 52 can be the same or different. The first auxiliary swing arm 51 is rotatably connected to the base 10, and the first auxiliary swing arm 51 is slidably connected to the first fixing member 21. The second auxiliary swing arm 52 is rotatably connected to the base 10, and the second auxiliary swing arm 52 is slidably connected to the second fixing member 22. When the first fixing member 21 and the second fixing member 22 rotate relative to each other, the first fixing member 21 drives the first auxiliary swing arm 51 to rotate relative to the base 10. During this process, the first auxiliary swing arm 51 and the first fixing member 21 can slide relative to each other, so the first main swing arm 31 and the first fixing member 21 are not prone to get stuck during relative rotation; the second fixing member 22 drives the second auxiliary swing arm 52 to rotate relative to the base 10. During this process, the second auxiliary swing arm 52 and the second fixing member 22 can slide relative to each other, so the second main swing arm 32 and the second fixing member 22 are not prone to get stuck during relative rotation.

[0133] Optionally, the rotation axis of the first main swing arm 31 and the base 10 are not coincident with the rotation axis of the first auxiliary swing arm 51 and the base 10; thus, when the first fixing member 21 drives the first main swing arm 31 and the first auxiliary swing arm 51 to rotate, relative sliding occurs between the first auxiliary swing arm 51 and the first fixing member 21. Similarly, the rotation axis of the second main swing arm 32 and the base 10 are not coincident with the rotation axis of the second auxiliary swing arm 52 and the base 10; thus, when the second fixing member 22 drives the second main swing arm 32 and the second auxiliary swing arm 52 to rotate, relative sliding occurs between the second auxiliary swing arm 52 and the second fixing member 22.

[0134] Optionally, see Fig. 9 , Fig.12 , Fig. 20 and Fig.21 , Fig. 20 FIG. 4 shows the sliding cooperation between the first auxiliary swing arm 51 and the first fixing member 21 when the folding assembly 100 is in the unfolded state. Fig.212 shows the sliding cooperation between the first auxiliary swing arm 51 and the first fixing member 21 when the folding assembly 100 is in the folded state. The first fixing member 21 may be provided with a first sliding space 2101, one end of the first auxiliary swing arm 51 extends into the first sliding space 2101 and slides with the first sliding space 2101, and the first auxiliary swing arm 51 may directly slide with the first fixing member 21. Of course, in some other cases, the first auxiliary swing arm 51 may be provided with a first sliding member (not shown in the drawings), and the first auxiliary swing arm 51 may slide with the first sliding space 2101 through the first sliding member.

[0135] See also Fig. 9 , Fig.13 , Fig. 20 and Fig.21 , Fig. 20 FIG. 4 also shows the sliding cooperation between the second auxiliary swing arm 52 and the second fixing member 22 when the folding assembly 100 is in the unfolded state. Fig.21 The figure also shows the sliding cooperation between the second auxiliary swing arm 52 and the second fixing member 22 when the folding assembly 100 is in the folded state. The second fixing member 22 may be provided with a second sliding space 2201, one end of the second auxiliary swing arm 52 extends into the second sliding space 2201 and slides with the second sliding space 2201, and the second auxiliary swing arm 52 may directly slide with the second fixing member 22. Of course, in some other cases, the second auxiliary swing arm 52 may be provided with a second sliding member (not shown in the drawings), and the second auxiliary swing arm 52 may slide with the second sliding space 2201 through the second sliding member.

[0136] It should be noted that the manner in which the first auxiliary swing arm 51 is slidably connected to the first fixing member 21 and the manner in which the second main swing arm 32 is slidably connected to the second fixing member 22 are not limited thereto. Optionally, in some other embodiments, a first sliding space may be provided on the first auxiliary swing arm 51, a first sliding member may be provided on the first fixing member 21, and the first sliding member and the first sliding space are slidably matched, thereby realizing the sliding connection between the first auxiliary swing arm 51 and the first fixing member 21. Similarly, a second sliding space may be provided on the second auxiliary swing arm 52, a second sliding member may be provided on the second fixing member 22, and the second sliding member and the second sliding space are slidably matched, thereby realizing the sliding connection between the second auxiliary swing arm 52 and the second fixing member 22.

[0137] Optionally, see Fig. 9 and Fig.12 The first auxiliary swing arm 51 can be rotatably connected to the base 10 through the third rotating shaft 83, and the third rotating shaft 83 can be separately molded with the first auxiliary swing arm 51 and the base 10 and connected; of course, the third rotating shaft 83 can also be an integral structure integrally molded with one of the first auxiliary swing arm 51 and the base 10, and rotatably connected to the other.

[0138] Similarly, see Fig. 9 and Fig.13 The second auxiliary swing arm 52 can be rotatably connected to the base 10 through the fourth rotating shaft 84, and the fourth rotating shaft 84 can be separately molded with the second auxiliary swing arm 52 and the base 10 and connected; of course, the fourth rotating shaft 84 can also be an integral structure integrally molded with one of the second auxiliary swing arm 52 and the base 10, and rotatably connected to the other.

[0139] Optionally, in some embodiments, see Fig. 9 The folding assembly 100 may further include a first gear 91 and a second gear 92. The first gear 91 is fixed to the first auxiliary swing arm 51, and the first gear 91 may be directly or indirectly fixed to the first auxiliary swing arm 51; in some cases, the first gear 91 and the first auxiliary swing arm 51 may be an integral structure formed in one piece. The second gear 92 may be fixed to the second auxiliary swing arm 52, and the second gear 92 may be directly or indirectly fixed to the second auxiliary swing arm 52; in some cases, the second gear 92 and the second auxiliary swing arm 52 may be an integral structure formed in one piece. The first gear 91 and the second gear 92 are meshed and transmitted, so that when the first auxiliary swing arm 51 and the second auxiliary swing arm 52 rotate relative to each other, the first gear 91 and the second gear 92 may be meshed and transmitted, and the synchronization of the relative rotation of the first fixing member 21 and the second fixing member 22 may be improved.

[0140] Optionally, see Fig. 9 The folding assembly 100 may further include a third gear 93 and a fourth gear 94, which may be rotatably disposed on the base 10 through a rotating shaft structure. The third gear 93 and the fourth gear 94 are meshed with each other, and the third gear 93 is meshed with the first gear 91, and the fourth gear 94 is meshed with the second gear 92. In this way, when the first auxiliary swing arm 51 and the second auxiliary swing arm 52 rotate relative to each other, the first auxiliary swing arm 51 drives the first gear 91 to rotate, and the first gear 91 can be meshed with the third gear 93 and the fourth gear 94 to drive the second gear 92, so that the first fixing member 21 and the second fixing member 22 rotate synchronously, and the rotation directions are opposite.

[0141] The following describes the manner in which the first supporting member 41 is rotatably connected to the first fixing member 21 and the manner in which the second supporting member 42 is rotatably connected to the second fixing member 22 .

[0142] In some embodiments, see Figures 7 to 9 ,as well as Fig.14 , Fig.14The schematic diagram of the structure of the first support member 41 provided in the embodiment of the present application is shown. The first support member 41 is provided with a third arc-shaped arm 412, which is a roughly arc-shaped structure. The first fixing member 21 is provided with a third arc-shaped groove 212, which is a roughly arc-shaped groove. The third arc-shaped arm 412 is slidably matched with the third arc-shaped groove 212 so that the first support member 41 is rotatably connected with the first fixing member 21; therefore, the rotation axis of the third arc-shaped arm 412 is roughly coincident with the rotation axis of the third arc-shaped groove 212, and when the third arc-shaped arm 412 slides in the third arc-shaped groove 212 along the arc-shaped trajectory of the third arc-shaped groove 212, the third arc-shaped arm 412 rotates relative to the first fixing member 21. In this case, it can be considered that the first support member 41 and the first fixing member 21 are rotationally connected via a virtual axis, which facilitates the rotation axis of the first support member 41 and the first fixing member 21 to be roughly located on the folding screen 2000, thereby improving the supporting effect of the first support member 41 on the folding screen 2000 and reducing the possibility of damage to the folding screen 2000.

[0143] Similarly, see Figures 7 to 9 ,as well as Fig.15 , Fig.15 The schematic diagram of the structure of the second support member 42 provided in the embodiment of the present application is shown. The second support member 42 is provided with a fourth arc-shaped arm 422, and the second fixing member 22 is provided with a fourth arc-shaped groove 222. The fourth arc-shaped arm 422 is slidably matched with the fourth arc-shaped groove 222 so that the second support member 42 is rotatably connected with the second fixing member 22; therefore, the rotation axis of the fourth arc-shaped arm 422 is roughly coincident with the rotation axis of the fourth arc-shaped groove 222, and when the fourth arc-shaped arm 422 slides along the arc-shaped track of the fourth arc-shaped groove 222 in the fourth arc-shaped groove 222, the fourth arc-shaped arm 422 rotates relative to the second fixing member 22. In this case, it can be regarded that the second support member 42 is rotatably connected with the second fixing member 22 through a virtual axis, which is conducive to the rotation axis of the second support member 42 and the second fixing member 22 being rotatably connected to be roughly located on the folding screen 2000, which can improve the supporting effect of the second support member 42 on the folding screen 2000 and reduce the possibility of causing damage to the folding screen 2000.

[0144] Optionally, in some embodiments, see Figures 7 to 9 The third arc groove 212 can be set at one end of the first fixing member 21 along its own length direction (ie, the Y-axis direction), and the fourth arc groove 222 can be set at one end of the second fixing member 22 along its own length direction (ie, the Y-axis direction).

[0145] Optionally, the first supporting surface 410 is disposed away from the first main swing arm 31, and the second supporting surface 420 is disposed away from the second main swing arm 32. The third arc-shaped arm 412 can be disposed on the side of the first supporting member 41 facing the first fixing member 21, that is, the side away from the first supporting surface 410; the fourth arc-shaped arm 422 can be disposed on the side of the second supporting member 42 facing the second fixing member 22, that is, the side away from the second supporting surface 420.

[0146] It can be understood that in some other embodiments, the positions of the third arc-shaped arm 412 and the third arc-shaped groove 212 can be swapped, that is, the third arc-shaped groove 212 can be provided on the first support member 41, and the third arc-shaped arm 412 can be provided on the first fixing member 21, and the first support member 41 can also be rotatably connected to the first fixing member 21. Similarly, the positions of the fourth arc-shaped arm 422 and the fourth arc-shaped groove 222 can be swapped, that is, the fourth arc-shaped groove 222 can be provided on the second support member 42, and the fourth arc-shaped arm 422 can be provided on the second fixing member 22.

[0147] It should be noted that the first support member 41 and the first fixing member 21 are not limited to being rotationally connected through a virtual axis. In some other possible embodiments, the first support member 41 and the first fixing member 21 may also be rotationally connected through an axis or a pin. The second support member 42 and the second fixing member 22 are not limited to being rotationally connected through a virtual axis. In some other possible embodiments, the second support member 42 and the second fixing member 22 may also be rotationally connected through an axis or a pin.

[0148] In some embodiments, see Fig. 9 The base 10 includes a shaft cover 15 and a base 16. The shaft cover 15 is roughly in the shape of a cover or a shell. The shaft cover 15 includes a receiving space 150 and an opening connected to the receiving space 150. The base 16 is arranged in the receiving space 150. The base 16 can be a structure of various shapes, for example, a block structure, a plate structure, a frame structure, etc. with regular or irregular shapes, but is not limited thereto. The first main swing arm 31 and the second main swing arm 32 can be rotatably connected to the base 16. In this way, the base 16 and the connection between the first main swing arm 31 and the second main swing arm 32 and the base 16 can be protected by the shaft cover 15 to improve reliability.

[0149] Optionally, the first auxiliary swing arm 51 and the second auxiliary swing arm 52 may be rotatably connected to the base 10 at the portion thereof which is rotatably connected to the base 10, so as to be protected by the shaft cover 15. The first auxiliary swing arm 51 and the second auxiliary swing arm 52 may be rotatably connected to the base 16 or the shaft cover 15. Optionally, the first gear 91, the second gear 92, the third gear 93 and the fourth gear 94 may be disposed in the shaft cover 15, so as to be protected by the shaft cover 15.

[0150] The following describes the manner in which the first support member 41 is slidably connected and rotatably connected to the first main swing arm 31 , and the manner in which the second support member 42 is slidably connected and rotatably connected to the second main swing arm 32 .

[0151] See also Figures 16 to 18 , Fig.16 It shows a cross-sectional schematic diagram of a folding assembly 100 provided in some embodiments of the present application in an unfolded state, Fig.17 A cross-sectional schematic diagram illustrating a folding assembly 100 provided in some embodiments of the present application in an intermediate state between an unfolded state and a folded state, Fig.18 A cross-sectional schematic diagram of a folding assembly 100 provided in some embodiments of the present application when in a folded state is illustrated.

[0152] In some embodiments, see Fig.10 , Fig.14 as well as Fig.16 , a first sliding portion 411 is provided on the first support member 41, and a first sliding matching portion 311 is provided on the first main swing arm 31. The first sliding portion 411 includes a first track groove 4111. The first sliding portion 411 can be a structure of various shapes, such as a plate-like structure, a sheet-like structure or a block-like structure, but is not limited thereto, as long as the structure can be provided with the first track groove 4111. The first track groove 4111 can be a through groove that passes through the opposite sides of the first sliding portion 411 along the length direction of the first support member 41 (i.e., the Y-axis direction), and of course, it can also be a blind groove that does not pass through the opposite sides of the first sliding portion 411. The first sliding matching portion 311 includes a first sliding body 3111, and the first sliding body 3111 can be a part or all of the first sliding matching portion 311. The first sliding body 3111 can be a structure of various shapes, such as an axis structure, a pin structure, a rod structure, a block structure, a strip structure, but is not limited thereto, as long as the structure can slide in the first track groove 4111. The first sliding body 3111 is slidably matched with the first track groove 4111 , that is, the first sliding body 3111 can slide in the first track groove 4111 along the track of the first track groove 4111 , so that the first main swing arm 31 and the first support member 41 can slide and rotate relative to each other.

[0153] Similarly, see Fig.11 , Fig.15 as well as Fig.16, a second sliding portion 421 is provided on the second support member 42, and a second sliding matching portion 321 is provided on the second main swing arm 32. The second sliding portion 421 includes a second track groove 4211. The second sliding portion 421 can be a structure of various shapes, such as a plate-like structure, a sheet-like structure or a block-like structure, but is not limited thereto, as long as the structure can be provided with the second track groove 4211. The second track groove 4211 can be a through groove that passes through the opposite sides of the second sliding portion 421 along the length direction of the second support member 42 (i.e., the Y-axis direction), and of course, it can also be a blind groove that does not pass through the opposite sides of the second sliding portion 421. The second sliding matching portion 321 includes a second sliding body 3211, and the second sliding body 3211 can be a part or the whole of the second sliding matching portion 321. The second sliding body 3211 can be a structure of various shapes, such as an axis structure, a pin structure, a rod structure, a block structure, a strip structure, but is not limited thereto, as long as the structure can slide in the second track groove 4211. The second sliding body 3211 is slidably matched with the second track groove 4211 , that is, the second sliding body 3211 can slide in the second track groove 4211 along the track of the second track groove 4211 , so that the second main swing arm 32 and the second support member 42 can slide and rotate relative to each other.

[0154] In some cases, see Fig.16 When the folding assembly 100 is in the unfolded state, the first sliding body 3111 may be located at the first end 4111a of the first track groove 4111, and the second sliding body 3211 may be located at the third end 4211a of the second track groove 4211. When the folding assembly 100 is in the folded state, please refer to Fig.18 The first sliding body 3111 may be located at the second end 4111b of the first track groove 4111, and the second sliding body 3211 may be located at the fourth end 4211b of the second track groove 4211. The second end 4111b may be the other end of the first track groove 4111 away from the first end 4111a, and the fourth end 4211b may be the other end of the second track groove 4211 away from the third end 4211a.

[0155] When the folding assembly 100 switches from the unfolded state to the folded state, please refer to Figures 16 to 18, the first fixing member 21 drives the first main swing arm 31 to rotate, during which the first main swing arm 31 and the first fixing member 21 will rotate relative to each other, and the first main swing arm 31 drives the first support member 41 to move through the first sliding body 3111, and the first sliding body 3111 slides from the first end 4111a to the second end 4111b in the first trajectory groove 4111 along the trajectory of the first trajectory groove 4111, and the first support member 41 and the first main swing arm 31 rotate relative to each other; the second fixing member 22 drives the second main swing arm 32 to rotate, during which the second main swing arm 32 and the second fixing member 22 rotate relative to each other, and the second main swing arm 32 drives the second support member 42 to move through the second sliding body 3211, and the second sliding body 3211 slides from the third end 4211a to the fourth end 4211b in the second trajectory groove 4211 along the trajectory of the second trajectory groove 4211, and the second support member 42 and the second main swing arm 32 rotate relative to each other.

[0156] It should be noted that in some other embodiments, the first sliding portion 411 may include a first sliding body 3111, and the first sliding matching portion 311 may include a first track groove 4111. Similarly, the second sliding portion 421 may include a second sliding body 3211, and the second sliding matching portion 321 may include a second track groove 4211.

[0157] Optionally, in some embodiments, see Fig.14 ,as well as Figures 16 to 18 The first track groove 4111 includes a first slide groove 41111 and a second slide groove 41112. The second slide groove 41112 is located on one side of the first slide groove 41111 and communicates with the first slide groove 41111. Therefore, the shape formed by the combination of the first slide groove 41111 and the second slide groove 41112 is a non-arc shape and a non-linear shape, that is, an irregular shape, for example, a bend shape. When the folding assembly 100 is in the unfolded state, the first sliding body 3111 is located in the first slide groove 41111, for example Fig.16 When the folding assembly 100 is in the folded state, the first sliding body 3111 is located in the second sliding groove 41112, for example Fig.18 shown.

[0158] Similarly, see Fig.15 ,as well as Figures 16 to 18The second track groove 4211 includes a third slide groove 42111 and a fourth slide groove 42112. The fourth slide groove 42112 is located at one side of the third slide groove 42111 and communicates with the third slide groove 42111. Therefore, the shape formed by the combination of the third slide groove 42111 and the fourth slide groove 42112 is a non-arc shape and a non-linear shape, that is, an irregular shape, for example, a bend shape. When the folding assembly 100 is in the unfolded state, the second sliding body 3211 is located in the third slide groove 42111. When the folding assembly 100 is in the folded state, the second sliding body 3211 is located in the fourth slide groove 42112.

[0159] In this arrangement, since the second slide groove 41112 is located on one side of the first slide groove 41111, the second slide groove 41112 and the first slide groove 41111 are combined to form a non-arc groove and a non-linear groove. Therefore, when the first support member 41 and the first main swing arm 31 slide and rotate relative to each other, they can better adapt to the movement trajectory of the first sliding body 3111, without restricting the first sliding body 3111 to always slide along the arc-shaped or linear trajectory in the first trajectory groove 4111, that is, allowing the first sliding body 3111 to turn or turn in the first trajectory groove 4111, which is conducive to the relative uniform movement of the first support member 41 and the first main swing arm 31; since the fourth slide groove 42112 is located on one side of the third slide groove 42111, the fourth slide groove 42112 and the first main swing arm 31 are combined to form a non-arc groove and a non-linear groove. Therefore, when the first support member 41 and the first main swing arm 31 slide and rotate relative to each other, they can better adapt to the movement trajectory of the first sliding body 3111, without restricting the first sliding body 3111 to always slide along the arc-shaped or linear trajectory in the first trajectory groove 4111. The three sliding grooves 42111 are combined to form a non-arc groove and a non-linear groove. Therefore, when the second support member 42 and the second main swing arm 32 slide and rotate relative to each other, they can better adapt to the movement trajectory of the second sliding body 3211 without restricting the second sliding body 3211 to always slide along the arc or linear trajectory in the second trajectory groove 4211, that is, the second sliding body 3211 is allowed to turn or turn in the second trajectory groove 4211, which is conducive to the relative uniform movement of the second support member 42 and the second main swing arm 32; thereby, the uniformity of the first support member 41 and the second support member 42 when applying force to the foldable part 2100 of the folding screen 2000 can be improved, thereby reducing the possibility of the folding screen 2000 being wrinkled or squeezed and arched due to uneven force.

[0160] If the first track groove 4111 and the second track groove 4211 are set to be arc-shaped or straight-line-shaped, then when the first support member 41 and the first main swing arm 31 slide and rotate relative to each other, the first sliding body 3111 must always slide in the first track groove 4111 along the arc-shaped or straight-line track, and when the second support member 42 and the second main swing arm 32 slide and rotate relative to each other, the second sliding body 3211 must always slide in the second track groove 4211 along the arc-shaped or straight-line track, resulting in that during the movement, the relative movement speed between the first support member 41 and the first main swing arm 31 will change, and the relative movement speed between the second support member 42 and the second main swing arm 32 will change. Therefore, the rotation angle of the first support member 41 and the second support member 42 may suddenly change during the movement, which in turn causes the force applied by the first support member 41 and the second support member 42 to the foldable portion 2100 of the folding screen 2000 to suddenly change and be uneven, which may cause the folding screen 2000 to have wrinkles or extrusion arches due to uneven force. The above-mentioned technical solution in the embodiment of the present application can better improve this problem.

[0161] Optionally, the first end 4111a of the first track groove 4111 may be an end of the first slide groove 41111 away from the second slide groove 41112, and the second end 4111b of the first track groove 4111 may be an end of the second slide groove 41112 away from the first slide groove 41111. Similarly, the third end 4211a of the second track groove 4211 may be an end of the third slide groove 42111 away from the fourth slide groove 42112, and the fourth end 4211b of the second track groove 4211 may be an end of the fourth slide groove 42112 away from the first slide groove 41111.

[0162] Optionally, see Fig.16 When the folding assembly 100 is in the unfolded state, the second slide groove 41112 is located on the side of the first slide groove 41111 facing the base 10 , and the fourth slide groove 42112 is located on the side of the third slide groove 42111 facing the base 10 .

[0163] In this way, when the folding assembly 100 switches from the unfolded state to the folded state, Figures 16 to 18The first sliding body 3111 transitions from a first slide groove 41111 away from the base 10 to a second slide groove 41112 close to the base 10, so as to facilitate the first support member 41 close to the base 10 to move away from the base 10 along the X-axis direction and away from the base 10 along the Z-axis direction; the second sliding body 3211 transitions from a third slide groove 42111 away from the base 10 to a fourth slide groove 42112 close to the base 10, so as to facilitate the second support member 42 to move away from the base 10 along the X-axis direction and away from the base 10 along the Z-axis direction; thereby, when the folding component 100 is in a folded state, the first support surface 410 and the second support surface 420 form an angle a, and the first support member 41 and the second support member 42 remain in an angled state.

[0164] Optionally, see Figures 14 to 16 , the length of the first slide groove 41111 is greater than the length of the second slide groove 41112, and the length of the third slide groove 42111 is greater than the length of the fourth slide groove 42112. The length of the first slide groove 41111 refers to the length of the track that the first slide groove 41111 allows the first sliding body 3111 to slide, which can be regarded as the distance between the two opposite ends of the first slide groove 41111; the length of the second slide groove 41112 refers to the length of the track that the second slide groove 41112 allows the first sliding body 3111 to slide, which can be regarded as the distance between the two opposite ends of the second slide groove 41112. Similarly, the length of the third slide groove 42111 refers to the length of the track that the third slide groove 42111 allows the second sliding body 3211 to slide, which can be regarded as the distance between the two opposite ends of the third slide groove 42111; the length of the fourth slide groove 42112 refers to the length of the track that the fourth slide groove 42112 allows the second sliding body 3211 to slide, which can be regarded as the distance between the two opposite ends of the fourth slide groove 42112.

[0165] With such a configuration, when the folding assembly 100 switches from the unfolded state to the folded state, the first sliding body 3111 is allowed to move along the first motion track (i.e., the track of the first slide groove 41111) for a certain distance in the first track groove 4111, and then turn or turn to move along the second motion track (i.e., the track of the second slide groove 41112), and the length of the first motion track is greater than the length of the second motion track; that is, the second sliding body 3211 is allowed to move along the third motion track (i.e., the track of the third slide groove 42111) in the second track groove 4211. After a certain distance, it turns or turns again and moves along the fourth motion trajectory (i.e., the trajectory of the fourth slide groove 42112), and the length of the third motion trajectory is greater than the length of the fourth motion trajectory; thereby, it is more conducive to the relative uniform motion of the first support member 41 and the first main swing arm 31, and it is more conducive to the relative uniform motion of the second support member 42 and the second main swing arm 32, and it is also conducive to the first support member 41 and the second support member 42 being able to rotate smoothly when the folding component 100 is in the folded state so that the first support surface 410 and the second support surface 420 form an angle a.

[0166] It should be noted that the length relationship between the first slide groove 41111 and the second slide groove 41112 is not limited to this, and can be set according to the actual motion trajectory requirements of the first support member 41 relative to the first main swing arm 31. The length relationship between the third slide groove 42111 and the fourth slide groove 42112 is not limited to this, and can be set according to the actual motion trajectory requirements of the second support member 42 relative to the second main swing arm 32.

[0167] Optionally, see Fig.14 and Fig.16 The first slide groove 41111 and the second slide groove 41112 form an L shape, that is, a roughly L shape, but not limited to an absolute L shape, so that the first sliding body 3111 can turn or turn when moving from one end of the first slide groove 41111 to the other end and enter the second slide groove 41112, and it is more convenient for the first support member 41 to smoothly rotate to the folded state and tilt to the base 10 so that the first support surface 410 can form an angle a with the second support surface 420. Please refer to Figures 15 to 18 The third slide groove 42111 and the fourth slide groove 42112 form an L shape, that is, roughly form an L shape, but not limited to an absolute L shape, so that the second sliding body 3211 can turn or turn when moving from one end of the third slide groove 42111 to the other end and enter the fourth slide groove 42112, and it is also beneficial for the second support member 42 to smoothly rotate to the folded state and tilt to the base 10 so that the second support surface 420 can form an angle a with the first support surface 410.

[0168] It should be noted that the shape formed by the combination of the first slide groove 41111 and the second slide groove 41112 is not limited to an L shape, and can be set according to the actual motion trajectory requirements of the first support member 41 relative to the first main swing arm 31. The shape formed by the combination of the third slide groove 42111 and the fourth slide groove 42112 is not limited to an L shape, and can be set according to the actual motion trajectory requirements of the second support member 42 relative to the second main swing arm 32.

[0169] Optionally, in some embodiments, see Fig. 9 , Fig.10 and Fig.16 , the first sliding portion 411 is located on the side of the first support member 41 facing the first main swing arm 31. Along the direction of the rotation axis (i.e., the Y-axis direction) of the first main swing arm 31 and the base 10, the first main swing arm 31 and the first sliding portion 411 are arranged in sequence, that is, the first main swing arm 31 and the first sliding portion 411 are relatively staggered, rather than being in the same position. The first sliding fitting portion 311 is located on the side of the first main swing arm 31 facing the first sliding portion 411.

[0170] Similarly, see Fig. 9 , Fig.11 and Fig.16 , the second sliding portion 421 is located on the side of the second support member 42 facing the second main swing arm 32. Along the direction of the rotation axis of the second main swing arm 32 and the base 10 (i.e., the Y-axis direction), the second main swing arm 32 and the second sliding portion 421 are arranged in sequence, that is, the second main swing arm 32 and the second sliding portion 421 are staggered, rather than being in the same position. The second sliding fitting portion 321 is located on the side of the second main swing arm 32 facing the second sliding portion 421.

[0171] With such arrangement, compared with the first main swing arm 31 and the first sliding part 411 being at the same position, and the second main swing arm 32 and the second sliding part 421 being at the same position along the Y-axis direction, by staggering the first main swing arm 31 and the first sliding part 411 along the Y-axis direction, it is beneficial to distribute the thickness along the Y-axis direction, and to reduce the overall thickness of the folding component 100 along the Z-axis direction, thereby facilitating a lightweight design of the folding component 100 and the terminal device 10000.

[0172] The matching relationship between the first supporting member 41 and the first fixing member 21 and the matching relationship between the second supporting member 42 and the second fixing member 22 are further described in detail below.

[0173] In some embodiments, see Fig. 9 and Fig.16The first fixing member 21 is provided with a first groove 211, which passes through the side of the first fixing member 21 facing the base 10. Along the direction of the rotation axis (i.e., the Y-axis direction) of the rotational axis of the first main swing arm 31 and the base 10, the first groove 211 passes through the opposite ends of the first fixing member 21. The first support member 41 is at least partially located in the first groove 211, that is, the first support member 41 can be partially or completely located in the first groove 211.

[0174] Similarly, see Fig. 9 and Fig.16 The second fixing member 22 is provided with a second groove 221, which passes through the side of the second fixing member 22 facing the base 10. Along the direction of the rotation axis (i.e., the Y-axis direction) of the rotational axis of the second main swing arm 32 and the base 10, the second groove 221 passes through the opposite ends of the second fixing member 22. The second support member 42 is at least partially located in the second groove 221, that is, the second support member 42 can be partially or completely located in the second groove 221.

[0175] With such a configuration, the first groove 211 can avoid at least a portion of the first support member 41, and the second groove 221 can avoid at least a portion of the second support member 42, which can improve the compactness of the structure and help reduce the overall thickness of the folding component 100 along the Z-axis direction, thereby facilitating the lightweight design of the folding component 100 and the terminal device 10000. At the same time, the inner wall of the first groove 211 can also limit the first support member 41 to restrict the first support member 41 from moving away from the base 10 along the X-axis direction, and the inner wall of the second groove 221 can also limit the second support member 42 to restrict the second support member 42 from moving away from the base 10 along the X-axis direction, so as to improve the stability of the cooperation between the first support member 41 and the first fixing member 21, and to improve the stability of the cooperation between the second support member 42 and the second fixing member 22, thereby reducing the possibility of the first support member 41 and the second support member 42 applying force to the folding screen 2000 due to movement, thereby improving the stability of the first support member 41 and the second support member 42 in supporting the folding screen 2000.

[0176] Optionally, in some embodiments, see Fig. 9 and Fig.16The first groove 211 includes a first inner bottom surface 2111, and the first inner bottom surface 2111 is arranged opposite to the first support member 41. When the folding assembly 100 is in the unfolded state, the first inner bottom surface 2111 and the first support surface 410 form an angle b, that is, the first inner bottom surface 2111 is inclined relative to the first support surface 410, and a first gap 2110 is formed between the first inner bottom surface 2111 and the first support member 41. In this way, during the relative rotation of the first support member 41 and the first main swing arm 31, and during the relative rotation of the first support member 41 and the first fixing member 21, the first gap 2110 can avoid the first support member 41, effectively reducing the possibility of mutual interference between the first support member 41 and the first fixing member 21.

[0177] Similarly, see Fig. 9 and Fig.16 The second groove 221 includes a second inner bottom surface 2211, and the second inner bottom surface 2211 is arranged opposite to the second support member 42. When the folding assembly 100 is in the unfolded state, the second inner bottom surface 2211 and the second support surface 420 form an angle c, and a second gap 2210 is formed between the second inner bottom surface 2211 and the second support member 42. In this way, during the relative rotation of the second support member 42 and the second main swing arm 32, and during the relative rotation of the second support member 42 and the second fixing member 22, the second gap 2210 can avoid the second support member 42, effectively reducing the possibility of mutual interference between the second support member 42 and the second fixing member 22.

[0178] Optionally, in some embodiments, see Figure 6 , Fig. 9 and Fig.16 The first fixing member 21 includes a third supporting surface 210, and the third supporting surface 210 is located on the side of the first groove 211 facing away from the base 10. When the folding assembly 100 is in the unfolded state, the third supporting surface 210 is flush with the first supporting surface 410 and / or the second supporting surface 420 (tolerance should be allowed). The third supporting surface 210 is used to support the folding screen 2000.

[0179] Similarly, see Figure 6 , Fig. 9 and Fig.16 The second fixing member 22 includes a fourth supporting surface 220, which is located on the side of the second groove 221 facing away from the base 10. When the folding assembly 100 is in the unfolded state, the fourth supporting surface 220 is flush with the second supporting surface 420 and / or the first supporting surface 410 (tolerance should be allowed). The fourth supporting surface 220 is used to support the folding screen 2000.

[0180] In this way, the third support surface 210 and the fourth support surface 220 are arranged to increase the support area of ​​the folding screen 2000, thereby improving the flatness of the folding screen 2000 when it is in the unfolded state. Moreover, by adding support surfaces to other components that are different from the first support surface 410 and the second support surface 420, the structural strength and support stability are relatively high, which can avoid the situation where the strength of some parts of the support surface is low and easy to deform due to increasing the support surface on the same component.

[0181] The matching relationship between the first support member 41 , the second support member 42 and the base 10 is described below.

[0182] In some embodiments, see Figure 7 and Fig. 9 The base 10 includes a first support portion 111, which is used to support the first support member 41 when the folding assembly 100 is in the unfolded state. The first support portion 111 can be a structure of various shapes, such as a surface structure, a convex structure, etc., but is not limited thereto.

[0183] Similarly, see Figure 7 and Fig. 9 The base 10 includes a second support portion 121, which is used to support the second support member 42 when the folding assembly 100 is in the unfolded state. The second support portion 121 can be a structure of various shapes, such as a surface structure, a convex structure, etc., but is not limited thereto.

[0184] With such arrangement, when the folding assembly 100 is in the unfolded state, the first support portion 111 supports the first support member 41, and the second support portion 121 supports the second support member 42, which can reduce the possibility of the first support member 41 and the second support member 42 tilting or swinging toward the base 10, thereby improving the flatness of the folding screen 2000 supported on the first support surface 410 and the second support surface 420.

[0185] Optionally, in some embodiments, see Figure 7 and Fig. 9 The base 10 is provided with a first limiting groove 11. When the folding assembly 100 is in the unfolded state, the first support member 41 extends into the first limiting groove 11. The inner bottom wall of the first limiting groove 11 includes a first supporting portion 111, which is a surface structure. The first supporting portion 111 can be a part or the whole of the inner bottom wall of the first limiting groove 11.

[0186] Similarly, see Figure 7 and Fig. 9The base 10 is provided with a second limiting groove 12. When the folding assembly 100 is in the unfolded state, the second support member 42 extends into the second limiting groove 12. The inner bottom wall of the second limiting groove 12 includes a second supporting portion 121, which is a surface structure. The second supporting portion 121 can be a part or the whole of the inner bottom wall of the second limiting groove 12.

[0187] With such a configuration, when the folding assembly 100 is in the unfolded state, the inner bottom wall of the first limiting groove 11 can be used to support the first support member 41, and the inner bottom wall of the second limiting groove 12 can be used to support the second support member 42, that is, surface support, and the support is more stable. Moreover, the inner side wall of the first limiting groove 11 can limit the first support member 41 to limit the movement of the first support member 41 along the X-axis direction, and the inner side wall of the second limiting groove 12 can limit the second support member 42 to limit the movement of the second support member 42 along the X-axis direction, so as to improve the stability of the first support member 41 and the second support member 42 in the unfolded state, thereby reducing the possibility of the first support member 41 and the second support member 42 applying force to the folding screen 2000 due to movement, thereby improving the stability of the first support member 41 and the second support member 42 in supporting the folding screen 2000.

[0188] Optionally, at least one of the two ends of the base 10 along its own length direction (that is, the Y-axis direction) is provided with a first limiting groove 11 and a second limiting groove 12. Specifically, at least one of the two ends of the shaft cover 15 of the base 10 along its own length direction (that is, the Y-axis direction) is provided with a first limiting groove 11 and a second limiting groove 12; of course, in some other embodiments, the first limiting groove 11 and the second limiting groove 12 may also be provided on the base 16 of the base 10.

[0189] Optionally, see Figure 6 , Figure 7 and Fig. 9 The base 10 includes a fifth support surface 101, which is located between the first limiting groove 11 and the second limiting groove 12. When the folding assembly 100 is in the unfolded state, the fifth support surface 101 is flush with the first support surface 410 and / or the second support surface 420 (tolerance should be allowed). The fifth support surface 101 is used to support the folding screen 2000.

[0190] Such a configuration is conducive to increasing the support area of ​​the folding screen 2000, thereby improving the flatness of the folding screen 2000 when it is in the unfolded state. Moreover, by adding a support surface to other components that are different from the first support surface 410 and the second support surface 420, the structural strength and support stability are relatively high, which can avoid the deformation of part of the support surface caused by increasing the support surface on the same component. Because the fifth support surface 101 is located between the first limiting groove 11 and the second limiting groove 12, it is convenient for the base 10 to directly set the fifth support surface 101 between the first limiting groove 11 and the second limiting groove 12, and there is no need to additionally set the fifth support surface 101 at other positions of the base 10, so the base 10 can be fully utilized to improve the compactness of the structure.

[0191] Optionally, at least one of the two ends of the shaft cover 15 along its own length direction (ie, the Y-axis direction) is provided with a first limiting groove 11 and a second limiting groove 12 , and the shaft cover 15 includes a fifth supporting surface 101 .

[0192] In order to further increase the space for accommodating the foldable portion 2100 of the folding screen 2000, in some embodiments, see Figure 6 and Fig. 9 ,as well as Figures 19 to 21 , Fig.19 It shows a schematic diagram of the structure of the door panel 60 provided in some embodiments of the present application, Fig. 20 Another cross-sectional schematic diagram of the folding assembly 100 provided in some embodiments of the present application in an unfolded state is shown, Fig.21Another cross-sectional schematic diagram of the folding assembly 100 provided in some embodiments of the present application when in a folded state is shown. The folding assembly 100 further includes a door panel 60. When the folding assembly 100 is in an unfolded state, the door panel 60 is located between the first support member 41 and the second support member 42. The door panel 60 is provided with a first matching portion 61 and a second matching portion 62, the first auxiliary swing arm 51 is provided with a first pushing portion 511, and the second auxiliary swing arm 52 is provided with a second pushing portion 521. When the folding assembly 100 switches from the unfolded state to the folded state, the first pushing portion 511 abuts against the first portion 6111 of the first matching portion 61, and the second pushing portion 521 abuts against the second portion 6211 of the second matching portion 62, so as to push the door panel 60 to move toward the base 10, so as to leave a space for accommodating the foldable portion 2100 on the side of the door panel 60 facing away from the base 10, which can further reduce the possibility of wrinkling or extrusion arching of the foldable portion 2100. When the folding assembly 100 switches from the folded state to the unfolded state, the first pushing portion 511 abuts against the third portion 6112 of the first matching portion 61, and the second pushing portion 521 abuts against the fourth portion 6212 of the second matching portion 62, so as to push the door panel 60 to move away from the base 10, so as to facilitate the door panel 60 to support the foldable portion 2100. When the folding assembly 100 is in the unfolded state, the surface of the door panel 60 facing away from the base 10 can be substantially flush with the first supporting surface 410 and the second supporting surface 420 (tolerance should be allowed).

[0193] It can be understood that the first matching portion 61 and the second matching portion 62 can be structures of various shapes, such as a hook structure, a semi-ring structure, a ring structure, a structure of various shapes with a slot or a hole, etc., but not limited thereto. The first portion 6111 and the third portion 6112 are a part of the first matching portion 61, and can be structures of various shapes, such as a surface structure, a convex structure, etc., but not limited thereto. The second portion 6211 and the fourth portion 6212 are a part of the second matching portion 62, and can be structures of various shapes, such as a surface structure, a convex structure, etc., but not limited thereto.

[0194] Optionally, in some embodiments, see Fig. 20 and Fig.21 The first matching portion 61 and the second matching portion 62 are located on the side of the door panel 60 facing the base 10. The first matching portion 61 is provided with a first matching groove 611, and the inner wall of the first matching groove 611 includes a first portion 6111 and a third portion 6112. The first portion 6111 and the third portion 6112 are a surface structure, and the first portion 6111 and the third portion 6112 are arranged opposite to each other. The second matching portion 62 is provided with a second matching groove 621, and the inner wall of the second matching groove 621 includes a second portion 6211 and a fourth portion 6212. The second portion 6211 and the fourth portion 6212 are a surface structure, and the second portion 6211 and the fourth portion 6212 are arranged opposite to each other.

[0195] The first auxiliary swing arm 51 is located on one side of the first matching portion 61. In the projection along the direction of the rotation axis of the first auxiliary swing arm 51 (that is, the Y-axis direction), the first auxiliary swing arm 51 and the first matching portion 61 at least partially overlap, that is, they can partially or completely overlap. The first pushing portion 511 is located on the side of the first auxiliary swing arm 51 facing the first matching portion 61. The first pushing portion 511 deviates from the rotation axis of the first auxiliary swing arm 51, that is, the first pushing portion 511 is not on the rotation axis of the first auxiliary swing arm 51, that is, it is eccentrically arranged. The first pushing portion 511 is partially or completely located in the first matching groove 611.

[0196] The second auxiliary swing arm 52 is located on one side of the second matching portion 62. In the projection along the direction of the rotation axis of the second auxiliary swing arm 52 (i.e., the Y-axis direction), the second auxiliary swing arm 52 and the second matching portion 62 at least partially overlap, that is, they can partially or completely overlap. The second pushing portion 521 is located on the side of the second auxiliary swing arm 52 facing the second matching portion 62. The second pushing portion 521 deviates from the rotation axis of the second auxiliary swing arm 52, that is, the second pushing portion 521 is not on the rotation axis of the second auxiliary swing arm 52, that is, it is eccentrically arranged. The second pushing portion 521 is partially or completely located in the second matching groove 621.

[0197] In this arrangement, since the projections of the first auxiliary swing arm 51 and the first matching portion 61 along the Y-axis direction at least partially overlap, the compactness of the first auxiliary swing arm 51 and the first matching portion 61 in the width direction (i.e., the X-axis direction) of the base 10 can be improved; the projections of the second auxiliary swing arm 52 and the second matching portion 62 along the Y-axis direction at least partially overlap, which can improve the compactness of the first auxiliary swing arm 51 and the first matching portion 61 in the width direction (i.e., the X-axis direction) of the base 10, thereby facilitating the reduction of the size of the folding assembly 100 in the width direction and miniaturization of the folding assembly 100. At the same time, since the first pushing portion 511 deviates from the rotation axis of the first auxiliary swing arm 51, when the first auxiliary swing arm 51 rotates, it drives the first pushing portion 511 to rotate, and the first pushing portion 511 can push the door panel 60 to move; since the second pushing portion 521 deviates from the rotation axis of the second auxiliary swing arm 52, when the second auxiliary swing arm 52 rotates, it drives the second pushing portion 521 to rotate, and the second pushing portion 521 can push the door panel 60 to move.

[0198] It can be understood that the first pushing portion 511 and the second pushing portion 521 can be structures of various shapes, such as an axis structure, a rod structure, a strip structure, etc., but are not limited thereto, as long as the structure can push an object to move.

[0199] Optionally, see Fig.12 and Fig. 20The first pusher 511 can be connected to the first auxiliary swing arm 51 through the first connecting arm 512. When the first auxiliary swing arm 51 rotates, the first pusher 511 is driven to rotate through the first connecting arm 512. Exemplarily, the first auxiliary swing arm 51 is fixedly connected to the third rotating shaft 83, and the first connecting arm 512 can be fixed to the third rotating shaft 83.

[0200] Similarly, see Fig.13 and Fig. 20 The second pusher 521 can be connected to the second auxiliary swing arm 52 through the second connecting arm 522. When the second auxiliary swing arm 52 rotates, the second pusher 521 is driven to rotate through the second connecting arm 522. Exemplarily, the second auxiliary swing arm 52 is fixedly connected to the fourth rotating shaft 84, and the second connecting arm 522 can be fixed to the fourth rotating shaft 84.

[0201] Of course, in some other embodiments, the first pushing portion 511 may also be directly connected to the first auxiliary swing arm 51 , and the second pushing portion 521 may also be directly connected to the second auxiliary swing arm 52 .

[0202] In order to further improve the support effect of the folding screen 2000, in some embodiments, please refer to Figure 6 , Fig.10 and Fig.11 The folding assembly 100 also includes a third support member 71 and a fourth support member 72. The third support member 71 is arranged on the first main swing arm 31. The third support member 71 and the first main swing arm 31 can be separately formed and connected, or they can be an integrally formed one-piece structure. The third support member 71 includes a sixth support surface 710, and the sixth support surface 710 is used to support the folding screen 2000. The fourth support member 72 is arranged on the second main swing arm 32. The fourth support member 72 and the second main swing arm 32 can be separately formed and connected, or they can be an integrally formed one-piece structure. The fourth support member 72 includes a seventh support surface 720, and the seventh support surface 720 is used to support the folding screen 2000. When the folding assembly 100 is in the unfolded state, the sixth support surface 710 and the seventh support surface 720 are located between the first support surface 410 and the second support surface 420, and the sixth support surface 710, the seventh support surface 720, the first support surface 410 and the second support surface 420 can be substantially flush (tolerance should be allowed), for example Fig.16 When the folding assembly 100 is in the folded state, the sixth support surface 710 and the seventh support surface 720 are arranged opposite to each other, for example Fig.18 shown.

[0203] In this way, by setting the sixth support surface 710 and the seventh support surface 720, it is beneficial to increase the support area of ​​the folding screen 2000, thereby improving the flatness of the folding screen 2000 when it is in the unfolded state. Moreover, by adding support surfaces on other components different from the first support surface 410 and the second support surface 420, the structural strength and support stability are relatively high, which can avoid the deformation of part of the support surface due to the increase of the support surface on the same component (for example, if the area of ​​the first support surface 410 is increased, the edge or middle part of the first support member 41 is easily deformed when it is subjected to external force, and the flatness requirement of the first support surface 410 will also increase when the area is larger; for example, if the length of the door panel 60 is increased, the door panel 60 is easily deformed when subjected to force, and the door panel 60 needs to avoid other components of the terminal device 10000 and has a concave-convex structure, which affects the support effect of the folding screen 2000).

[0204] Optionally, in some embodiments, see Fig.18 When the folding component 100 is in the folded state, the sixth support surface 710 and the seventh support surface 720 form an angle d (the angle d is greater than 0° and less than 180°, for example, it can be an acute angle, a right angle or an obtuse angle), and the distance between the edge of the sixth support surface 710 away from the first support member 41 and the edge of the seventh support surface 720 away from the second support member 42 is a third distance L3, and the distance between the edge of the sixth support surface 710 close to the first support member 41 and the edge of the seventh support surface 720 close to the second support member 42 is a fourth distance L4, and the third distance L3 is greater than the fourth distance L4.

[0205] Such a configuration is conducive to forming a space between the sixth support surface 710 and the seventh support surface 720, in which the side away from the first support member 41 and the second support member 42 is larger than the side close to the first support member 41 and the second support member 42, so as to accommodate the foldable portion 2100 of the folding screen 2000, thereby further reducing the possibility of damage to the foldable portion 2100 of the folding screen 2000 due to excessive folding deformation.

[0206] Optionally, see Figure 6 , along the direction of the rotation axis of the first main swing arm 31 and the base 10 (i.e., the Y-axis direction), the third support member 71 and the fourth support member 72 are at the same position, the third support member 71 and the door panel 60 are arranged in sequence, and the fourth support member 72 and the door panel 60 are arranged in sequence, that is, the third support member 71 and the fourth support member 72 are located on one side of the door panel 60. In this way, it is beneficial to reduce the length of the door panel 60 along the Y-axis direction, and it can also be regarded as that the support surface for supporting the folding screen 2000 is distributed to the door panel 60, the third support member 71 and the fourth support member 72, so as to reduce the possibility of the folding screen 2000 being dented or wrinkled in the unfolded state, and improve the support stability of the folding screen 2000.

[0207] Optionally, see Fig.10 and Fig.11 The third support member 71 can be connected to the first arc-shaped arm 312 of the first main swing arm 31 through a first connecting portion, and the fourth support member 72 can be connected to the second arc-shaped arm 322 of the second main swing arm 32 through a second connecting portion.

[0208] It can be understood that the number of the first fixing member 21, the second fixing member 22, the first main swing arm 31, the second main swing arm 32, the first support member 41, the second support member 42, the first auxiliary swing arm 51, the second auxiliary swing arm 52, the third support member 71 and the fourth support member 72 can be one or more (multiple, that is, at least two).

[0209] Optionally, a first fixing member 21, a second fixing member 22, a first main swing arm 31, a second main swing arm 32, a first auxiliary swing arm 51, a second auxiliary swing arm 52, a third support member 71 and a fourth support member 72 can cooperate to form a rotation group, and one or more rotation groups can be set along the length direction of the base 10 (i.e., the Y-axis direction).

[0210] For example, see Figure 6 and Fig. 9 , the number of the base 10, the door panel 60, the first support member 41 and the second support member 42 are all one, and the number of the first fixing member 21, the second fixing member 22, the first main swing arm 31, the second main swing arm 32, the third support member 71 and the fourth support member 72 are all two, so as to form two rotating groups arranged in sequence along the length direction of the base 10. The first support member 41 is rotatably connected with the first fixing members 21 of the two rotating groups at the same time, and is slidably connected and rotatably connected with the first main swing arms 31 of the two rotating groups at the same time. The second support member 42 is rotatably connected with the second fixing members 22 of the two rotating groups at the same time, and is slidably connected and rotatably connected with the second main swing arms 32 of the two rotating groups at the same time. The door panel 60 is located between the two third support members 71 and also between the two fourth support members 72; when the folding assembly 100 is in the unfolded state, the foldable portion 2100 of the folding screen 2000 can be supported on the door panel 60, the two third support members 71 and the two fourth support members 72, which can further improve the flatness of the folding screen 2000.

[0211] The above are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. A folding assembly capable of switching between an unfolded state and a folded state, characterized in that: The folding assembly comprises: Base; a first auxiliary swing arm and a second auxiliary swing arm; the first auxiliary swing arm is rotatably connected to the base, and the second auxiliary swing arm is rotatably connected to the base; and A door panel; the door panel is located between the first auxiliary swing arm and the second auxiliary swing arm; The door panel is provided with a first matching portion and a second matching portion, the first auxiliary swing arm is connected with a first pushing portion, and the second auxiliary swing arm is connected with a second pushing portion; when the folding assembly switches from the unfolded state to the folded state, the first pushing portion abuts against a first portion of the first matching portion, and the second pushing portion abuts against a second portion of the second matching portion, so as to push the door panel to move toward the base; when the folding assembly switches from the folded state to the unfolded state, the first pushing portion abuts against a third portion of the first matching portion, and the second pushing portion abuts against a fourth portion of the second matching portion, so as to push the door panel to move away from the base; wherein, the first portion and the third portion are arranged opposite to each other, the second portion and the fourth portion are arranged opposite to each other, and the first auxiliary swing arm is located on one side of the first matching portion; along the projection in the direction of the rotation axis of the first auxiliary swing arm, the first auxiliary swing arm and the first matching portion at least partially overlap; the first pushing portion is located on a side of the first auxiliary swing arm facing the first matching portion, the first auxiliary swing arm is rotatably connected to the base through a third rotating shaft, and the first pushing portion is located at an end of the third rotating shaft; The second auxiliary swing arm is located on one side of the second matching part; along the projection in the direction of the rotation axis of the second auxiliary swing arm, the second auxiliary swing arm and the second matching part at least partially overlap; the second pushing part is located on the side of the second auxiliary swing arm facing the second matching part, the second auxiliary swing arm is rotatably connected to the base through a fourth rotating shaft, and the second pushing part is located at the end of the fourth rotating shaft.

2. The folding assembly according to claim 1, characterized in that: The first matching portion and the second matching portion are annular structures, or structures with holes.

3. The folding assembly according to claim 1 or 2, characterized in that: The first matching portion and the second matching portion are located on a side of the door panel facing the base.

4. The folding assembly according to any one of claims 1 to 3, characterized in that: The first portion, the second portion, the third portion and the fourth portion are surface structures.

5. The folding assembly according to any one of claims 1 to 4, characterized in that: A first matching groove is provided on the first matching part, so that the first matching part forms an annular structure, and the inner wall of the first matching groove includes the first part and the third part; a second matching groove is provided on the second matching part, so that the second matching part forms an annular structure, and the inner wall of the second matching groove includes the second part and the fourth part.

6. The folding assembly according to claim 5, characterized in that: The first pushing portion deviates from the rotation axis of the first auxiliary swing arm and is located in the first matching groove; the second pushing portion deviates from the rotation axis of the second auxiliary swing arm and is located in the second matching groove.

7. The folding assembly according to any one of claims 1 to 6, characterized in that: The first pushing portion and the second pushing portion are shaft structures, rod structures or strip structures.

8. The folding assembly according to any one of claims 1 to 7, characterized in that: Also includes: A first fixing member and a second fixing member are respectively located on two sides of the base; The first auxiliary swing arm is slidably connected to the first fixing member, and the second auxiliary swing arm is slidably connected to the second fixing member; a first main swing arm and a second main swing arm, wherein the first main swing arm is rotatably connected to the base and the first fixing member respectively; The second main swing arm is rotatably connected to the base and the second fixing member respectively.

9. The folding assembly according to claim 8, characterized in that: The rotation axis of the first main swing arm and the base for rotation connection does not coincide with the rotation axis of the first auxiliary swing arm and the base for rotation connection; The rotation axis of the second main swing arm rotationally connected to the base does not coincide with the rotation axis of the second auxiliary swing arm rotationally connected to the base.

10. The folding assembly according to claim 8 or 9, characterized in that: The first main swing arm is provided with a first arc-shaped arm, and the base is provided with a first arc-shaped groove, or the first main swing arm is provided with a first arc-shaped groove, and the base is provided with a first arc-shaped arm; the first arc-shaped arm and the first arc-shaped groove are slidably matched, so that the first main swing arm is rotatably connected to the base; The second main swing arm is provided with a second arc-shaped arm, and the base is provided with a second arc-shaped groove, or the second main swing arm is provided with a second arc-shaped groove, and the base is provided with a second arc-shaped arm; the second arc-shaped arm and the second arc-shaped groove are slidably matched to make the second main swing arm rotatably connected to the base.

11. The folding assembly according to any one of claims 8 to 10, characterized in that: Along the length direction of the base, the first main swing arm and the second main swing arm are staggered.

12. The folding assembly according to any one of claims 1 to 11, characterized in that: Also includes a first gear, a second gear, a third gear and a fourth gear; The first gear is directly or indirectly fixed to the first auxiliary swing arm, and the second gear is directly or indirectly fixed to the second auxiliary swing arm; the third gear is meshed with the fourth gear, and the third gear is meshed with the first gear, and the fourth gear is meshed with the second gear; The first gear can transmit the second gear through the meshing of the third gear and the fourth gear, so that the first auxiliary swing arm and the second auxiliary swing arm rotate synchronously and in opposite directions.

13. A terminal device, characterized in that: The terminal device comprises: The folding assembly according to any one of claims 1 to 12; and A foldable screen, wherein the position of the foldable portion of the foldable screen corresponds to the position of the foldable component.

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