Folding assembly, folding device and terminal equipment

Abstract

The embodiment of the invention relates to the technical field of foldable electronic equipment, and provides a folding assembly, a folding device and terminal equipment, and the folding assembly comprises a base, a first fixing part, a second fixing part, a first main swing arm, a second main swing arm, a first supporting part and a second supporting part; when the folding assembly is switched from the unfolded state to the folded state, the first main swing arm rotates relative to the first fixing piece and slides and rotates relative to the first supporting piece, and the second main swing arm rotates relative to the second fixing piece and slides and rotates relative to the first supporting piece, so that when the folding assembly is in the folded state, the first main swing arm and the second main swing arm can swing. The first supporting face and the second supporting face are oppositely arranged and form an included angle, and the distance between the edges, close to the base, of the first supporting face and the second supporting face is larger than the distance between the edges, away from the base, of the first supporting face and the second supporting face. According to the embodiment of the invention, the possibility that the foldable part of the folding screen is damaged due to overlarge folding deformation degree can be effectively reduced.

Description

Folding assembly, folding device and terminal equipment

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on November 30, 2022, with application number 202211521017.2 and application name “Folding component, folding device and terminal equipment”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of foldable electronic devices, and in particular to a folding assembly, a folding device and a terminal device. Background Art

[0003] Foldable electronic devices are electronic devices that can be folded and unfolded, such as foldable screen mobile phones, foldable screen tablets, and foldable screen laptops. Foldable electronic devices generally include a body and a flexible display mounted on the body. The body can be folded or unfolded using its folding mechanism, while the flexible display can fold or unfold along with the body by bending its flexible deformable portion.

[0004] 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.

[0005] Summary of the Invention

[0006] 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.

[0007] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0008] In a first aspect, an embodiment of the present application provides a folding assembly, the folding assembly comprising:

[0009] base;

[0010] A first fixing member and a second fixing member are respectively located on two sides of the base;

[0011] 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

[0012] a first support member and a second support member, wherein the first support member is rotatably connected to the first fixed member and is slidably 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 fixed member and is slidably and rotatably connected to the second main swing arm, and the second support member includes a second support surface;

[0013] wherein the first fixing member and the second fixing member are capable of rotating relative to each other based on the base so that the folding assembly switches between the unfolded state and the folded state; when the folding assembly 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, so that 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 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.

[0014] The above technical solutions in the embodiments of the present application have at least the following technical effects or advantages:

[0015] The folding assembly provided in the embodiment of the present application has a first main swing arm that rotates relative to the first fixing member and slides and rotates relative to the first support member when the folding assembly switches from the unfolded state to the folded state based on the relative rotation of the first fixing member and the second fixing member based on the base. 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 the first distance between the first support surface and the second support surface close to the base is greater than the 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, with the side close to the base being larger than the side away from the base, which can accommodate the foldable part of the folding screen, which is conducive to the foldable part being roughly teardrop-shaped without having to be completely folded in half, and can effectively reduce the possibility of damage to the foldable part of the folding screen due to excessive folding deformation.

[0016] In addition, since the first main swing arm is slidingly 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 slidingly 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 the first support member being driven to move by the first auxiliary swing arm rotatably connected to the base and slidably connected to the first fixed member, and compared with the second auxiliary swing arm being driven to move by the second support member being 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 improving the compactness of the structure and reducing the size.

[0017] 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 fitting portion; one of the first sliding portion and the first sliding fitting portion includes a first track groove, and the other includes a first sliding body; the first sliding body slidably fits 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;

[0018] A second sliding portion is provided on the second support member, and a second sliding fitting portion is provided on the second main swing arm; one of the second sliding portion and the second sliding fitting portion includes a second track groove, and the other includes a second sliding body; the second sliding body slides in cooperation 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.

[0019] 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 on 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;

[0020] 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.

[0021] 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.

[0022] In some embodiments of the first aspect, the length of the first chute is greater than the length of the second chute; the length of the third chute is greater than the length of the fourth chute.

[0023] In some embodiments of the first aspect, the first sliding groove and the second sliding groove form an L-shape; the third sliding groove and the fourth sliding groove form an L-shape.

[0024] 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; the first main swing arm and the first sliding portion are sequentially arranged along a direction of a rotation axis of the first main swing arm rotatably connected to the base; and the first sliding fitting portion is located on a side of the first main swing arm facing the first sliding portion;

[0025] The second sliding portion is located on the side of the second support member facing the second main swing arm; the second main swing arm and the second sliding portion are arranged in sequence along the direction of the rotation axis of the second main swing arm and the base; the second sliding fitting portion is located on the side of the second main swing arm facing the second sliding portion.

[0026] In some embodiments of the first aspect, a first groove is formed on the first fixing member, the first groove extending through a side of the first fixing member facing the base; the first groove extends through opposite ends of the first fixing member along a direction of a rotation axis through which the first main swing arm is rotatably connected to the base; and the first support member is at least partially located within the first groove.

[0027] 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.

[0028] In some embodiments of the first aspect, the first groove includes a first inner bottom surface, the first inner bottom surface is disposed 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;

[0029] 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.

[0030] In some embodiments of the first aspect, the first fixing member includes a third supporting surface, the third supporting surface being 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;

[0031] The second fixing member includes a fourth supporting surface, which 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.

[0032] In some embodiments of the first aspect, the base includes a first support portion, the first support portion being configured to support the first support member when the folding assembly is in the unfolded state;

[0033] 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.

[0034] 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 an inner bottom wall of the first limiting groove includes the first supporting portion;

[0035] A second limiting groove is provided on the base. When the folding assembly is in the unfolded state, the second support member extends into the second limiting groove. The inner bottom wall of the second limiting groove includes the second supporting portion.

[0036] In some embodiments of the first aspect, the base includes a fifth support 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 support surface is flush with the first support surface and / or the second support surface.

[0037] 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;

[0038] The folding assembly further includes 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;

[0039] 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 the first part of the first matching portion, and the second pushing portion abuts against the second part of the second matching portion, so as to push the door panel toward the base; when the folding assembly switches from the folded state to the unfolded state, the first pushing portion abuts against the third part of the first matching portion, and the second pushing portion abuts against the fourth part of the second matching portion, so as to push the door panel to move back toward the base.

[0040] In some embodiments of the first aspect, the first mating portion and the second mating portion are located on a side of the door panel facing the base; the first mating portion is provided with a first mating groove, the inner wall of which includes the first portion and the third portion; the second mating portion is provided with a second mating groove, the inner wall of which includes the second portion and the fourth portion;

[0041] The first auxiliary swing arm is located on one side of the first matching portion; the first auxiliary swing arm and the first matching portion at least partially overlap in a projection along the direction of the rotation axis of the first auxiliary swing arm; the first pushing portion is located on 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;

[0042] 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.

[0043] 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;

[0044] When the folding assembly 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 assembly is in the folded state, the sixth support surface and the seventh support surface are arranged opposite to each other.

[0045] In some embodiments of the first aspect, when the folding component is in the folded state, the sixth support surface and the seventh support surface form an angle, 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.

[0046] In some embodiments of the first aspect, the first main swing arm is provided with a first arcuate arm, and the base is provided with a first arcuate groove, or the first main swing arm is provided with a first arcuate groove, and the base is provided with a first arcuate arm; the first arcuate arm and the first arcuate groove are slidably engaged to enable the first main swing arm to be rotatably connected to the base;

[0047] 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.

[0048] In some embodiments of the first aspect, the first supporting member is provided with a third arcuate arm, and the first fixing member is provided with a third arcuate groove, or the first supporting member is provided with a third arcuate groove, and the first fixing member is provided with a third arcuate arm; the third arcuate arm and the third arcuate groove are slidably engaged to rotatably connect the first supporting member and the first fixing member;

[0049] 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 to the second fixing member.

[0050] In a second aspect, an embodiment of the present application provides a folding device, the folding device comprising:

[0051] a first shell;

[0052] a second housing; and

[0053] In the folding assembly of any embodiment 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.

[0054] In a third aspect, an embodiment of the present application provides a terminal device, the terminal device comprising:

[0055] The folding device of the second aspect above; and

[0056] A folding screen is provided on the first shell and the second shell; the position of the foldable portion of the folding screen corresponds to the position of the folding component.

[0057] 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

[0058] FIG1 is a schematic structural diagram of an electronic device in a related art in an unfolded state;

[0059] FIG2 is a schematic structural diagram of an electronic device in a folded state in the related art;

[0060] FIG3 is a schematic structural diagram of a terminal device in an expanded state provided by an embodiment of the present application;

[0061] FIG4 is a schematic structural diagram of the terminal device shown in FIG3 when it is in a folded state;

[0062] FIG5 is a schematic structural diagram of a folding device provided in an embodiment of the present application;

[0063] FIG6 is a schematic structural diagram of a foldable assembly provided in an embodiment of the present application in an unfolded state;

[0064] FIG7 is a front view of the folding assembly shown in FIG6 in the unfolded state;

[0065] FIG8 is a front view of the folding assembly shown in FIG6 in the folded state and in cooperation with the folding screen;

[0066] FIG9 is an exploded view of the folding assembly shown in FIG6 ;

[0067] FIG10 is a schematic structural diagram of the first main swing arm and the third support member provided in an embodiment of the present application;

[0068] FIG11 is a schematic structural diagram of the cooperation between the second main swing arm and the fourth support member provided in an embodiment of the present application;

[0069] FIG12 is a schematic structural diagram of the first auxiliary swing arm and the first pushing portion provided in an embodiment of the present application;

[0070] FIG13 is a schematic structural diagram of the cooperation between the second auxiliary swing arm and the second pushing portion provided in an embodiment of the present application;

[0071] FIG14 is a schematic structural diagram of a first support member provided in an embodiment of the present application;

[0072] FIG15 is a schematic structural diagram of a second support member provided in an embodiment of the present application;

[0073] FIG16 is a cross-sectional schematic diagram of a foldable assembly provided in an embodiment of the present application in an unfolded state;

[0074] FIG17 is a cross-sectional schematic diagram of a foldable assembly provided by an embodiment of the present application in an intermediate state between an unfolded state and a folded state;

[0075] FIG18 is a cross-sectional schematic diagram of a foldable assembly provided in an embodiment of the present application in a folded state;

[0076] FIG19 is a schematic structural diagram of a door panel provided in an embodiment of the present application;

[0077] FIG20 is another cross-sectional schematic diagram of the foldable assembly provided in an embodiment of the present application in an unfolded state;

[0078] FIG21 is another cross-sectional schematic diagram of the folding assembly provided in an embodiment of the present application in a folded state.

[0079] 1 , 2, 3, 4, 5, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 67, 68, 69, 71, 72, 73, 74, 75, 76, 77, 78, 79, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100 Third arcuate arm; 212, third arcuate slot; 422, fourth arcuate arm; 222, fourth arcuate 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; 411, first sliding portion; 311, first sliding fitting portion; 4111, first track groove; 3111, first sliding body; 421, second sliding portion; 321, second sliding fitting portion; 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; 211, first groove; 221, second groove; 2111, first inner bottom surface; 2110, first gap; 2211, Second inner bottom surface; 2210, second gap; 210, third supporting surface; 220, fourth supporting surface; 111, first supporting portion; 121, second supporting portion; 11, first limiting groove; 12, second limiting groove; 101, fifth supporting surface; 60, door panel; 61, first matching portion; 62, second matching portion; 511, first pushing portion; 521, second pushing portion; 6111, first part; 6211, second part; 6112, third part; 6212, fourth part; 611, first matching groove; 621, second matching groove; 512, first connecting arm; 522, second connecting arm; 71, third supporting member; 72, fourth supporting member; 710, sixth supporting surface; 720, seventh supporting surface. DETAILED DESCRIPTION

[0080] The following describes in detail embodiments of the present application, examples of which 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.

[0081] In the description of this 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 accompanying drawings. They are only for the convenience of describing this 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. Therefore, they should not be understood as limitations on this application.

[0082] The terms "first," "second," "third," and "fourth," etc., are used solely for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. For example, the terms "first support member" and "second support member" are used solely to distinguish between the different support members and do not define their order. The first support member could be named "second support member," and the second support member could be named "first support member" without departing from the scope of the various described embodiments. Furthermore, the terms "first," "second," "third," and "fourth," etc., do not necessarily define the features being referred to as different.

[0083] In this application, unless otherwise expressly specified or defined, the terms "connected", "connect", etc. should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrated. The relationship between two components defined by the terms "connected", "connected", "fixed", etc. can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be internal communication between two elements or an interaction relationship between 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.

[0084] In this application, "and / or" is simply a way to describe the relationship between related objects, indicating that three possible relationships exist. For example, A and / or B can mean that A exists alone, A and B exist simultaneously, or B exists alone. Additionally, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0085] It should be noted that, in this application, words such as "in some embodiments," "exemplarily," and "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "in some embodiments," "exemplarily," or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "in some embodiments," "exemplarily," and "for example" is intended to present the relevant concepts in a concrete manner.

[0086] In order to make the purpose, technical solutions and advantages of this application more clear, this application is further described in detail below with reference to the accompanying drawings and embodiments.

[0087] Please refer to Figures 1 and 2. Figure 1 shows a front view of a foldable electronic device 1 in the related art in its unfolded state, and Figure 2 shows a front view of the electronic device 1 shown in Figure 1 in its 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 either side of the folding mechanism 011 and can rotate between an unfolded state and a 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 foldable or unfoldable as the first side panel 012 and the second side panel 013 rotate.

[0088] By comparing Figure 1 and Figure 2, it can be seen that when the flexible display screen 02 is in the folded state, the flexible deformable part 021 of the flexible display screen 02 will bend, and the folding mechanism 011 will exert force on the flexible deformable part 021, which may cause the flexible deformable part 021 to be pulled, squeezed, etc., which may easily cause the flexible deformable part 021 to have defects such as arching and wrinkling, or even damage, affecting the appearance and service life of the flexible display screen 02 in the folded state, and thus affecting the service life of the electronic device 1 and the user experience.

[0089] 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.

[0090] The terminal device provided in the embodiments of the present application is 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 (PDA), a wearable device (such as a watch), an in-vehicle device, an augmented reality (AR) / virtual reality (VR) device, etc., but is not limited to these. For ease of understanding, the terminal device is described in the embodiments of the present application as a mobile phone as an example.

[0091] Please refer to Figures 3 and 4. Figure 3 shows a schematic diagram of the structure of a terminal device 10000 provided in some embodiments of the present application in an expanded state, and Figure 4 shows a schematic diagram of the structure of the terminal device 10000 shown in Figure 3 in a folded state. To meet different usage requirements, the terminal device 10000 can be expanded to the expanded state, folded to the folded state, or in an intermediate state between the expanded and folded states. It should be understood that the intermediate state can be any state between the expanded and folded states of the terminal device 10000, and is not the only state.

[0092] 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 that can be folded or unfolded along 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.

[0093] Please refer to Figure 5, which shows a schematic diagram of the structure of a folding device 1000 provided in some embodiments of the present application. The folding device 1000 includes a folding assembly 100, a first housing 200, and a second housing 300. The folding assembly 100 is located between the first housing 200 and the second housing 300 and is connected to the first housing 200 and the second housing 300 respectively. The first housing 200 and the second housing 300 can rotate relative to each other based on the folding assembly 100, so that they can move closer together to rotate to a folded state, or move away from each other to rotate to an unfolded state.

[0094] 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.

[0095] Continuing to refer to Figures 3 and 5, the folding screen 2000 is disposed 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 assembly 100, that is, the foldable portion 2100 is disposed opposite to the folding assembly 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.

[0096] For example, the terminal device 10000 may be an inward-folding terminal device, and the folding screen 2000 is an inward-folding folding screen. When the folding screen 2000 is folded, the display surface of the folding screen 2000 is located on the inner side. The back of the folding screen 2000 is disposed on the first housing 200 and the second housing 300, and the display surface of the folding screen 2000 is exposed. 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 side opposite the display surface.

[0097] Please refer to Figures 3 and 5. When the terminal device 10000 is in the unfolded state, the folding device 1000 and the folding screen 2000 are also in the unfolded state. 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.

[0098] Please refer to 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. The first shell 200 is used to install the first surface 201 of the folding screen 2000 and the second shell 300 is used to install the second surface 301 of the folding screen 2000. They are arranged relative to each other and are 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 part 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), which can also achieve the folding of the folding screen 2000.

[0099] 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, circuit board, receiver, speaker, 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 are not limited in the embodiment of the present application. The first shell 200 and the second shell 300 may be a middle frame structure.

[0100] Next, the folding assembly 100 provided in an embodiment of the present application will be introduced and described.

[0101] To facilitate the description of the various embodiments below, an XYZ three-axis rectangular coordinate system is established. The width direction of the foldable assembly 100 is defined as the X-axis direction, which is parallel to the direction from the first housing 200 to the second housing 300 when the terminal device 10000 is in the unfolded state. The length direction of the foldable assembly 100 is defined as the Y-axis direction, which is parallel to the direction from one edge of the first housing 200 to the opposite edge of the other side when the terminal device 10000 is in the unfolded state. The thickness direction of the foldable assembly 100 is defined as the Z-axis direction, which is parallel to the direction from the first housing 200 to the foldable 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 X-axis direction and the negative X-axis direction, and the same applies to the Y-axis direction and the Z-axis direction. It should be understood that the coordinate system of the foldable assembly 100 can be flexibly set according to actual needs. This application only provides an example and should not be considered as a special limitation of this application.

[0102] Please refer to Figures 6 to 9. Figure 6 shows a schematic diagram of the three-dimensional structure of the folding assembly 100 provided in some embodiments of the present application in the unfolded state. Figure 7 shows a front view of the folding assembly 100 shown in Figure 6 in the unfolded state. Figure 8 shows a front view of the folding assembly 100 shown in Figure 6 when folded into the folded state and mated with the foldable portion 2100 of the folding screen 2000. Figure 9 shows an exploded view of the folding assembly 100 shown in Figure 6. 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:

[0103] The base 10 supports and connects the first and second main swing arms 31 and 32. It can have various regular or irregular shapes, such as, but not limited to, a block structure, a frame structure, a shell structure, or a plate structure. The base 10 can be a single component or comprise multiple assembled components. In some cases, the base 10 is also referred to as a main shaft, a main body, or the like.

[0104] The first fixing member 21 and the second fixing member 22 are respectively located on opposite sides of the base 10. It should be understood that the two sides of the base 10 refer to the two sides separated by the central longitudinal section m of the base 10. The central longitudinal section m is a plane parallel to the length (i.e., the Y-axis) and thickness (i.e., the Z-axis) of the base 10 and bisecting the base 10 along the width (i.e., the X-axis) of the base 10. The first fixing member 21 and the second fixing member 22 can be positioned opposite each other, i.e., at the same position along the length of the base 10. However, in some cases, the first fixing member 21 and the second fixing member 22 can be positioned opposite each other, i.e., staggered along the length of the base 10.

[0105] 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 respectively driven to rotate. It is understood that the first fixing member 21 and the first shell 200 can be formed separately and connected, for example, 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 a one-piece structure formed integrally; similarly, the second fixing member 22 and the second shell 300 can be formed separately and connected, or can be a one-piece structure formed integrally. It is understood that the first fixing member 21 and the second fixing member 22 can be various structural members of regular or irregular shapes, such as block structures, plate structures, etc., but are not limited thereto.

[0106] The first main swing arm 31 is rotationally connected to the base 10 and is rotationally connected to the first fixing member 21; the first fixing member 21 is rotationally connected to the base 10 via the first main swing arm 31. The manner in which the first main swing arm 31 is rotationally connected to the base 10 and the first fixing member 21 can be the same or different. The second main swing arm 32 is rotationally connected to the base 10 and is rotationally connected to the second fixing member 22; the second fixing member 22 is rotationally connected to the base 10 via the second main swing arm 32. The manner in which the second main swing arm 32 is rotationally connected to the base 10 and the second fixing member 22 can be the same or different. It is 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 embodiments of the present application.

[0107] 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.

[0108] The first support member 41 is rotatably connected to the first fixed member 21, and 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 portion 2100 of the folding screen 2000. The second support member 42 is rotatably connected to the second fixed member 22, and 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 portion 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 facilitate the formation of 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.

[0109] 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 move closer to 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 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. When the folding assembly 100 is in a folded state, the first support surface 410 and the second support surface 420 are arranged relative to each other and form an included angle a (the included 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, as shown in Figure 8.

[0110] According to the above description, the folding assembly 100 provided in the embodiment of the present application is configured such that when the first fixing member 21 and the second fixing member 22 rotate relative to each other based on the base 10, the folding assembly 100 switches from the unfolded state to the folded state. 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. The second main swing arm 32 rotates relative to the second fixing member 22 and slides and rotates relative to the first support member 41. Therefore, 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 part 2100 of the folding screen 2000, so that the foldable part 2100 can be roughly teardrop-shaped without being completely folded in half, which can effectively reduce the possibility of damage to the foldable part 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.

[0111] In addition, since the first main swing arm 31 is slidingly 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 slidingly 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 the first support member 41 being driven to move by the first auxiliary swing arm being rotatably connected to the base 10 and slidably connected to the first fixed member 21, and compared with the second auxiliary swing arm being driven to move by the second support member 42 being 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.

[0112] In some embodiments, referring to Figures 7 and 8, when 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 second fixing member 22 , and the second main swing arm 32 slides and rotates relative to the first support member 41, that is, while the second main swing arm 32 rotates relative to the second fixing member 22, it drives the second support member 42 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 tolerances 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 portion 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.

[0113] The following describes how the first main swing arm 31 and the second main swing arm 32 are rotatably connected to the base 10 .

[0114] In some embodiments, please refer to Figures 9 and 10. Figure 10 shows a schematic structural diagram of the first main swing arm 31 provided in an embodiment of the present application. The first main swing arm 31 is provided with a first arc-shaped arm 312, which is a roughly arc-shaped structure. The base 10 is provided with a first arc-shaped groove 13, which is a roughly arc-shaped groove. The first arc-shaped arm 312 slides with the first arc-shaped groove 13 to enable the first main swing arm 31 to be rotationally connected to the base 10; therefore, the rotation axis of the first arc-shaped arm 312 roughly coincides with the rotation axis of the first arc-shaped groove 13. When the first arc-shaped arm 312 slides along the arc-shaped trajectory of the first arc-shaped groove 13 in the first arc-shaped groove 13, the first arc-shaped arm 312 rotates relative to the base 10. In this case, it can be considered that the first main swing arm 31 and the base 10 are rotationally connected via a virtual axis.

[0115] Similarly, please refer to Figures 9 and 11. Figure 11 shows a schematic structural diagram of the second main swing arm 32 provided in an embodiment of the present application. 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 slides in conjunction with the second arc-shaped groove 14 so that the second main swing arm 32 is rotationally connected to the base 10; therefore, the rotation axis of the second arc-shaped arm 322 roughly coincides with the rotation axis of the second arc-shaped groove 14. 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 as that the second main swing arm 32 is rotationally connected to the base 10 via a virtual axis.

[0116] With such arrangement, when the folding assembly 100 switches from the unfolded state to the folded state, the first arc-shaped arm 312 can slide in the first arc-shaped groove 13 and partially extend to the outside, which is conducive to driving the first support member 41 to move away from the base 10, and the second arc-shaped arm 322 can slide in the second arc-shaped groove 14 and partially extend to the outside, which is conducive to driving 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 part 2100 of the folding screen 2000, so as to reduce the possibility of the foldable part 2100 being squeezed and damaged.

[0117] It is understood that in other embodiments, the positions of the first arcuate arm 312 and the first arcuate slot 13 can be swapped, that is, the first main swing arm 31 can be provided with the first arcuate slot 13, and the base 10 can be provided with the first arcuate arm 312, and the first main swing arm 31 can also be rotatably connected to the base 10. Similarly, the positions of the second arcuate arm 322 and the second arcuate slot 14 can be swapped, that is, the second main swing arm 32 can be provided with the second arcuate slot 14, and the base 10 can be provided with the second arcuate arm 322.

[0118] It should be noted that the first main swing arm 31 and the base 10 are not limited to being rotationally connected via a virtual axis. In some other possible embodiments, the first main swing arm 31 and the base 10 may also be rotationally connected via a shaft or pin. The second main swing arm 32 and the base 10 are not limited to being rotationally connected via a virtual axis. In some other possible embodiments, the second main swing arm 32 and the base 10 may also be rotationally connected via a shaft or pin.

[0119] Alternatively, in some embodiments, as shown in FIG9 , the first main swing arm 31 and the second main swing arm 32 are disposed sequentially along the length direction (i.e., the Y-axis direction) of the base 10. In other words, the first main swing arm 31 and the second main swing arm 32 are staggered rather than co-located. This helps reduce the width of the folding assembly 100 along the width direction (i.e., the X-axis direction) of the base 10.

[0120] 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.

[0121] The following describes how the first main swing arm 31 is rotatably connected to the first fixing member 21 , and how the second main swing arm 32 is rotatably connected to the second fixing member 22 .

[0122] In some embodiments, referring to Figures 9 and 10 , the first main swing arm 31 and the first fixing member 21 may be rotatably connected via a first rotating shaft 81. Optionally, a first axial hole may be defined in the first main swing arm 31, and a second axial hole may be defined in the first fixing member 21. The first rotating shaft 81 may engage with the first and second axial holes, thereby rotatably connecting the first main swing arm 31 and the first fixing member 21 via the first rotating shaft 81. Of course, in other cases, the first rotating shaft 81 may also be integrally formed with one of the first main swing arm 31 and the first fixing member 21 to form a one-piece structure, and rotatably connected to the other.

[0123] Similarly, referring to Figures 9 and 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 defined in the second main swing arm 32, and a fourth shaft hole can be defined in the second fixing member 22. The second rotating shaft 82 can be engaged with the third and fourth shaft holes, thereby rotatably connecting the second main swing arm 32 and the second fixing member 22 via the second rotating shaft 82. Of course, in other cases, the second rotating shaft 82 can also be integrally formed with one of the second main swing arm 32 and the second fixing member 22 to form a one-piece structure, and rotatably connected to the other.

[0124] 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 via a virtual axis; for example, an arcuate arm may be provided on the first main swing arm 31, and an arcuate slot may be provided on the first fixing member 21, or an arcuate slot may be provided on the first main swing arm 31 and an arcuate slot may be provided on the first fixing member 21, with the arcuate arm and the arcuate slot slidingly engaging to achieve 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 via a virtual axis. The specific connection method can be referred to the connection between the first main swing arm 31 and the first fixing member 21, and will not be further described here.

[0125] To improve the relative rotational stability of the first and second fixing members 21 and 22, in some embodiments, refer to Figures 9, 12, and 13. Figure 12 shows a schematic diagram of the structure of the first auxiliary swing arm 51 provided in an embodiment of the present application, and Figure 13 shows a schematic diagram of the structure of the second auxiliary swing arm 52 provided in an embodiment of the present application. The folding assembly 100 also includes a first and second auxiliary swing arm 51, 52. The first and second auxiliary swing arms 51, 52 can have various shapes and can have the same or different shapes and structures. The first and second auxiliary swing arms 51 are rotatably connected to the base 10 and are slidably connected to the first fixing member 21. The second auxiliary swing arm 52 is rotatably connected to the base 10 and 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. Therefore, it is not easy for the first main swing arm 31 and the first fixing member 21 to get stuck during the 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. Therefore, it is not easy for the second main swing arm 32 and the second fixing member 22 to get stuck during the relative rotation.

[0126] Optionally, the rotation axis of the first main swing arm 31 pivotally connected to the base 10 and the rotation axis of the first auxiliary swing arm 51 pivotally connected to the base 10 do not coincide; 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 pivotally connected to the base 10 and the rotation axis of the second auxiliary swing arm 52 pivotally connected to the base 10 do not coincide; 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.

[0127] Alternatively, please refer to Figures 9, 12, 20, and 21. Figure 20 shows the first auxiliary swing arm 51 slidingly engaging with the first fixing member 21 when the folding assembly 100 is in the unfolded state, and Figure 21 shows the first auxiliary swing arm 51 slidingly engaging with 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, and one end of the first auxiliary swing arm 51 extends into the first sliding space 2101 and slides with the first sliding space 2101. 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 via the first sliding member.

[0128] Please refer to Figures 9, 13, 20, and 21. Figure 20 also illustrates the sliding engagement of the second auxiliary swing arm 52 with the second fixing member 22 when the folding assembly 100 is in the unfolded state. Figure 21 also illustrates the sliding engagement of the second auxiliary swing arm 52 with 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 in engagement with the second sliding space 2201. The second auxiliary swing arm 52 may slide directly in engagement with the second fixing member 22. Of course, in 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 in engagement with the second sliding space 2201 via the second sliding member.

[0129] 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. Alternatively, in other embodiments, the first auxiliary swing arm 51 may be provided with a first sliding space, and the first fixing member 21 may be provided with a first sliding member, the first sliding member slidably engaging with the first sliding space, thereby achieving a slidable connection between the first auxiliary swing arm 51 and the first fixing member 21. Similarly, the second auxiliary swing arm 52 may be provided with a second sliding space, and the second fixing member 22 may be provided with a second sliding member, the second sliding member slidably engaging with the second sliding space, thereby achieving a slidable connection between the second auxiliary swing arm 52 and the second fixing member 22.

[0130] Optionally, referring to Figures 9 and 12, the first auxiliary swing arm 51 can be rotatably connected to the base 10 via a 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.

[0131] Similarly, referring to Figures 9 and 13, the second auxiliary swing arm 52 can be rotatably connected to the base 10 via 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.

[0132] Optionally, in some embodiments, referring to 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. 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 integrally formed as a one-piece structure. The second gear 92 may be fixed to the second auxiliary swing arm 52. 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 integrally formed as a one-piece structure. The first gear 91 and the second gear 92 mesh with each other to transmit power, so that the first auxiliary swing arm 51 and the second auxiliary swing arm 52 can rotate relative to each other through the meshing transmission of the first gear 91 and the second gear 92, thereby improving the synchronization of the relative rotation of the first fixed member 21 and the second fixed member 22.

[0133] Optionally, referring to FIG. 9 , the folding assembly 100 may further include a third gear 93 and a fourth gear 94, each of which may be rotatably mounted on the base 10 via a rotating shaft structure. The third gear 93 and the fourth gear 94 are meshed with each other, and the third gear 93 meshes with the first gear 91, while the fourth gear 94 meshes with the second gear 92. Thus, 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 then, through the meshing of the third gear 93 and the fourth gear 94, drive the second gear 92, thereby causing the first fixing member 21 and the second fixing member 22 to rotate synchronously, but in opposite directions.

[0134] The following describes how the first support member 41 is rotatably connected to the first fixing member 21 , and how the second support member 42 is rotatably connected to the second fixing member 22 .

[0135] In some embodiments, please refer to Figures 7 to 9, as well as Figure 14, which shows a schematic structural diagram of the first support member 41 provided in an embodiment of the present application. The first support member 41 is provided with a third arcuate arm 412, which is a generally arcuate structure. The first fixing member 21 is provided with a third arcuate groove 212, which is a generally arcuate groove. The third arcuate arm 412 slides with the third arcuate groove 212 to rotatably connect the first support member 41 to the first fixing member 21. Therefore, the rotation axis of the third arcuate arm 412 roughly coincides with the rotation axis of the third arcuate groove 212. When the third arcuate arm 412 slides within the third arcuate groove 212 along the arcuate trajectory of the third arcuate groove 212, the third arcuate arm 412 rotates relative to the first fixing member 21. In this case, it can be regarded as that the first support member 41 and the first fixing member 21 are rotationally connected through a virtual axis, which facilitates the rotation axis of the rotational connection between 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.

[0136] Similarly, please refer to Figures 7 to 9, as well as Figure 15, which shows a schematic structural diagram of the second support member 42 provided in an embodiment of the present application. A fourth arcuate arm 422 is provided on the second support member 42, and a fourth arcuate slot 222 is provided on the second fixing member 22. The fourth arcuate arm 422 slides with the fourth arcuate slot 222 to rotatably connect the second support member 42 to the second fixing member 22; therefore, the rotation axis of the fourth arcuate arm 422 substantially coincides with the rotation axis of the fourth arcuate slot 222. When the fourth arcuate arm 422 slides within the fourth arcuate slot 222 along the arcuate trajectory of the fourth arcuate slot 222, the fourth arcuate arm 422 rotates relative to the second fixing member 22. In this case, it can be regarded as that the second support member 42 and the second fixing member 22 are rotationally connected through a virtual axis, which facilitates the rotation axis of the rotational connection between the second support member 42 and the second fixing member 22 to be roughly located on the folding screen 2000, thereby improving the supporting effect of the second support member 42 on the folding screen 2000 and reducing the possibility of damage to the folding screen 2000.

[0137] Optionally, in some embodiments, referring to 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 (i.e., 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 (i.e., the Y-axis direction).

[0138] 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 support member 41 facing the first fixing member 21, that is, the side facing away from the first supporting surface 410; the fourth arc-shaped arm 422 can be disposed on the side of the second support member 42 facing the second fixing member 22, that is, the side facing away from the second supporting surface 420.

[0139] It is understood that in other embodiments, the positions of the third arcuate arm 412 and the third arcuate slot 212 can be reversed, that is, the third arcuate slot 212 can be provided on the first support member 41 and the third arcuate arm 412 can be provided on the first fixing member 21, and the first support member 41 and the first fixing member 21 can also be rotatably connected. Similarly, the positions of the fourth arcuate arm 422 and the fourth arcuate slot 222 can be reversed, that is, the fourth arcuate slot 222 can be provided on the second support member 42 and the fourth arcuate arm 422 can be provided on the second fixing member 22.

[0140] It should be noted that the first support member 41 and the first fixing member 21 are not limited to being rotationally connected via a virtual axis. In some other possible embodiments, the first support member 41 and the first fixing member 21 may also be rotationally connected via a shaft or a pin. The second support member 42 and the second fixing member 22 are not limited to being rotationally connected via a virtual axis. In some other possible embodiments, the second support member 42 and the second fixing member 22 may also be rotationally connected via a shaft or a pin.

[0141] In some embodiments, referring to FIG. 9 , the base 10 includes a shaft cover 15 and a base 16. The shaft cover 15 is generally in the shape of a cover or shell. The shaft cover 15 includes a receiving space 150 and an opening connected to the receiving space 150. The base 16 is disposed within the receiving space 150. The base 16 can be a structure of various shapes, such as a block structure, a plate structure, a frame structure, etc., which may be regular or irregular in shape, 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 shaft cover 15 can protect the base 16 and the connection between the first main swing arm 31 and the second main swing arm 32 and the base 16 to improve reliability.

[0142] Optionally, the portion where the first and second auxiliary swing arms 51, 52 are rotatably connected to the base 10 may be located within the shaft cover 15, to facilitate protection by the shaft cover 15. The first and second auxiliary swing arms 51, 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 within the shaft cover 15, to facilitate protection by the shaft cover 15.

[0143] The following describes how the first support member 41 is slidably connected and how the first main swing arm 31 is rotatably connected, and how the second support member 42 is slidably connected and how the second main swing arm 32 is rotatably connected.

[0144] Please refer to Figures 16 to 18. Figure 16 shows a cross-sectional schematic diagram of the folding component 100 provided in some embodiments of the present application when it is in an unfolded state. Figure 17 shows a cross-sectional schematic diagram of the folding component 100 provided in some embodiments of the present application when it is in an intermediate state between the unfolded state and the folded state. Figure 18 shows a cross-sectional schematic diagram of the folding component 100 provided in some embodiments of the present application when it is in a folded state.

[0145] In some embodiments, referring to Figures 10, 14, and 16, a first sliding portion 411 is provided on the first support member 41, and a first sliding engagement 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 have various shapes, such as, but not limited to, a plate-like structure, a sheet-like structure, or a block-like structure. Any structure capable of providing the first track groove 4111 is acceptable. The first track groove 4111 can be a through-slot extending along the length of the first support member 41 (i.e., the Y-axis) through opposite sides of the first sliding portion 411. Alternatively, it can be a blind slot that does not extend through opposite sides of the first sliding portion 411. The first sliding engagement portion 311 includes a first sliding body 3111, which can be a portion or the entire first sliding engagement portion 311. The first sliding body 3111 can have various shapes, such as, but not limited to, a shaft, a pin, a rod, a block, or a strip-like structure. Any structure capable of sliding within the first track groove 4111 is acceptable. 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.

[0146] Similarly, referring to Figures 11, 15, and 16, the second support member 42 is provided with a second sliding portion 421, and the second main swing arm 32 is provided with a second sliding engagement portion 321. The second sliding portion 421 includes a second track groove 4211. The second sliding portion 421 can have various shapes, such as, but not limited to, a plate-like structure, a sheet-like structure, or a block-like structure, as long as it can be provided with the second track groove 4211. The second track groove 4211 can be a through-slot extending along the length of the second support member 42 (i.e., the Y-axis direction) through the second sliding portion 421 on opposite sides. Alternatively, it can be a blind slot that does not extend through the second sliding portion 421 on opposite sides. The second sliding engagement portion 321 includes a second sliding body 3211, which can be part of or all of the second sliding engagement portion 321. The second sliding body 3211 can have various shapes, such as, but not limited to, a shaft, a pin, a rod, a block, or a strip-like structure, as long as it can slide within 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.

[0147] In some cases, referring to 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 tracking groove 4111, and the second sliding body 3211 may be located at the third end 4211a of the second tracking groove 4211. When the folding assembly 100 is in the folded state, referring to FIG. 18 , the first sliding body 3111 may be located at the second end 4111b of the first tracking groove 4111, and the second sliding body 3211 may be located at the fourth end 4211b of the second tracking groove 4211. The second end 4111b may be the other end of the first tracking groove 4111 away from the first end 4111a, and the fourth end 4211b may be the other end of the second tracking groove 4211 away from the third end 4211a.

[0148] When the folding assembly 100 switches from the unfolded state to the folded state, please refer to Figures 16 to 18 in sequence. The first fixing member 21 drives the first main swing arm 31 to rotate. During this process, the first main swing arm 31 and the first fixing member 21 rotate relative to each other. The first main swing arm 31 drives the first support member 41 to move through the first sliding body 3111. The first sliding body 3111 slides from the first end 4111a to the second end 4111b in the first track groove 4111 along the track of the first track groove 4111, and the first support member 41 rotates relative to the first main swing arm 31; the second fixing member 22 drives the second main swing arm 32 to rotate. During this process, 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. The second sliding body 3211 slides from the third end 4211a to the fourth end 4211b in the second track groove 4211 along the track of the second track groove 4211, and the second support member 42 and the second main swing arm 32 rotate relative to each other.

[0149] 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 fitting 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 fitting portion 321 may include a second track groove 4211.

[0150] Optionally, in some embodiments, referring to FIG. 14 and FIG. 16 to FIG. 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 is connected to 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 non-circular and non-linear, that is, an irregular shape, such as a bend. When the folding assembly 100 is in the unfolded state, the first sliding body 3111 is located in the first slide groove 41111, as shown in FIG. 16 . When the folding assembly 100 is in the folded state, the first sliding body 3111 is located in the second slide groove 41112, as shown in FIG. 18 .

[0151] Similarly, referring to Figures 15 and 16 through 18, the second track groove 4211 includes a third groove 42111 and a fourth groove 42112. The fourth groove 42112 is located on one side of and communicates with the third groove 42111. Therefore, the combined shape of the third and fourth grooves 42111, 42112, is non-circular and non-linear, i.e., an irregular shape, such as a bend. When the folding assembly 100 is in the unfolded state, the second sliding body 3211 is located within the third groove 42111. When the folding assembly 100 is in the folded state, the second sliding body 3211 is located within the fourth groove 42112.

[0152] With such 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-circular 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 circular arc 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-circular 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 circular arc or linear trajectory in the first trajectory groove 4111 The three sliding grooves 42111 are combined to form a non-circular 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 circular 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 improving 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, and reducing the possibility of the folding screen 2000 being wrinkled or squeezed and arched due to uneven force.

[0153] If the first track groove 4111 and the second track groove 4211 are set to be arc-shaped or straight-line, 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 along the arc-shaped or straight-line track in the first track groove 4111, 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 along the arc-shaped or straight-line track in the second track groove 4211, 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 part 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.

[0154] Optionally, the first end 4111a of the first tracking groove 4111 may be an end of the first sliding groove 41111 away from the second sliding groove 41112, and the second end 4111b of the first tracking groove 4111 may be an end of the second sliding groove 41112 away from the first sliding groove 41111. Similarly, the third end 4211a of the second tracking groove 4211 may be an end of the third sliding groove 42111 away from the fourth sliding groove 42112, and the fourth end 4211b of the second tracking groove 4211 may be an end of the fourth sliding groove 42112 away from the first sliding groove 41111.

[0155] Optionally, referring to 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 .

[0156] With such arrangement, when the folding assembly 100 switches from the unfolded state to the folded state, please refer to Figures 16 to 18, the first sliding body 3111 transitions from the first sliding groove 41111 away from the base 10 to the second sliding 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 the third sliding groove 42111 away from the base 10 to the fourth sliding groove 42112 close to the base 10, so as to facilitate the second support member 42 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; thereby, it is more conducive to forming an angle a between the first supporting surface 410 and the second supporting surface 420 when the folding assembly 100 is in the folded state, and it is conducive to the first support member 41 and the second support member 42 to maintain the angled state.

[0157] Optionally, referring to Figures 14 to 16 , the length of the first chute 41111 is greater than the length of the second chute 41112, and the length of the third chute 42111 is greater than the length of the fourth chute 42112. The length of the first chute 41111 refers to the length of the path along which the first sliding member 3111 is allowed to slide in the first chute 41111, and can be considered the distance between two opposite endpoints of the first chute 41111. The length of the second chute 41112 refers to the length of the path along which the first sliding member 3111 is allowed to slide in the second chute 41112, and can be considered the distance between two opposite endpoints of the second chute 41112. Similarly, the length of the third slide groove 42111 refers to the length of the track along which the third slide groove 42111 allows the second sliding body 3211 to slide, which can be regarded as the distance between the two opposite end points of the third slide groove 42111; the length of the fourth slide groove 42112 refers to the length of the track along which the fourth slide groove 42112 allows the second sliding body 3211 to slide, which can be regarded as the distance between the two opposite end points of the fourth slide groove 42112.

[0158] With this arrangement, when the folding assembly 100 switches from the unfolded state to the folded state, the first sliding body 3111 is allowed to first move along the first motion track (i.e., the track of the first slide groove 41111) for a distance in the first track groove 4111, and then turn or turn and 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 first 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 being more conducive to the relative uniform motion of the first support member 41 and the first main swing arm 31, and the relative uniform motion of the second support member 42 and the second main swing arm 32, and being conducive to the first support member 41 and the second support member 42 being able to rotate smoothly when the folding assembly 100 is in the folded state so that the first support surface 410 and the second support surface 420 form an angle a.

[0159] It should be noted that the length relationship between the first chute 41111 and the second chute 41112 is not limited to this, and can be set according to the actual motion trajectory of the first support member 41 relative to the first main swing arm 31. The length relationship between the third chute 42111 and the fourth chute 42112 is not limited to this, and can be set according to the actual motion trajectory of the second support member 42 relative to the second main swing arm 32.

[0160] Optionally, referring to Figures 14 and 16, the first slide groove 41111 and the second slide groove 41112 form an L-shape, that is, roughly form an 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 tilted 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 more convenient for the second support member 42 to smoothly rotate to the folded state and tilt with respect to the base 10 so that the second support surface 420 can form an angle a with the first support surface 410.

[0161] It should be noted that the shape formed by the combination of the first chute 41111 and the second chute 41112 is not limited to an L-shape, and can be set according to the actual motion trajectory of the first support member 41 relative to the first main swing arm 31. The shape formed by the combination of the third chute 42111 and the fourth chute 42112 is not limited to an L-shape, and can be set according to the actual motion trajectory of the second support member 42 relative to the second main swing arm 32.

[0162] Optionally, in some embodiments, as shown in Figures 9, 10, and 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) of the rotational connection between the first main swing arm 31 and the base 10, the first main swing arm 31 and the first sliding portion 411 are disposed sequentially, i.e., the first main swing arm 31 and the first sliding portion 411 are staggered relative to each other rather than being co-located. The first sliding engagement portion 311 is located on the side of the first main swing arm 31 facing the first sliding portion 411.

[0163] Similarly, referring to Figures 9, 11, and 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 rotational axis (i.e., the Y-axis) that pivots the second main swing arm 32 and the base 10, the second main swing arm 32 and the second sliding portion 421 are disposed sequentially. This means that the second main swing arm 32 and the second sliding portion 421 are staggered, rather than being co-located. The second sliding engagement portion 321 is located on the side of the second main swing arm 32 facing the second sliding portion 421.

[0164] With such an 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, which is beneficial to reducing the overall thickness of the folding component 100 along the Z-axis direction, and further beneficial to the lightweight design of the folding component 100 and the terminal device 10000.

[0165] The following further details 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 .

[0166] In some embodiments, referring to Figures 9 and 16 , the first fixing member 21 is provided with a first groove 211. The first groove 211 extends through the side of the first fixing member 21 facing the base 10. The first groove 211 extends through opposite ends of the first fixing member 21 along the axis of rotation (i.e., the Y-axis) that pivots the first main swing arm 31 and the base 10. The first support member 41 is at least partially located within the first groove 211; that is, the first support member 41 may be partially or entirely located within the first groove 211.

[0167] Similarly, referring to Figures 9 and 16 , the second fixing member 22 is provided with a second groove 221, which extends through the side of the second fixing member 22 facing the base 10. The second groove 221 extends through opposite ends of the second fixing member 22 along the axis of rotation (i.e., the Y-axis) of rotation between the second main swing arm 32 and the base 10. The second support member 42 is at least partially located within the second groove 221; that is, the second support member 42 may be partially or entirely located within the second groove 221.

[0168] 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 limit the movement of the first support member 41 along the X-axis direction back to the base 10, and the inner wall of the second groove 221 can also limit the second support member 42 to limit the movement of the second support member 42 along the X-axis direction back to the base 10, 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, and improving the stability of the first support member 41 and the second support member 42 in supporting the folding screen 2000.

[0169] Optionally, in some embodiments, as shown in Figures 9 and 16 , the first groove 211 includes a first inner bottom surface 2111, which is disposed opposite the first support member 41. When the folding assembly 100 is in the unfolded state, the first inner bottom surface 2111 forms an angle b with the first support surface 410. The first inner bottom surface 2111 is tilted 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. This allows the first gap 2110 to avoid the first support member 41 during relative rotation between the first main swing arm 31 and the first fixed member 21, effectively reducing the possibility of interference between the first support member 41 and the first fixed member 21.

[0170] Similarly, referring to Figures 9 and 16 , the second recess 221 includes a second inner bottom surface 2211, which is disposed opposite the second support member 42. When the folding assembly 100 is in the unfolded state, the second inner bottom surface 2211 forms an angle c with the second support surface 420, and a second gap 2210 is formed between the second inner bottom surface 2211 and the second support member 42. Thus, during relative rotation between the second support member 42 and the second main swing arm 32, and during relative rotation between the second support member 42 and the second fixing member 22, the second gap 2210 allows the second support member 42 to be avoided, effectively reducing the possibility of interference between the second support member 42 and the second fixing member 22.

[0171] Optionally, in some embodiments, referring to Figures 6, 9, and 16, the first fixing member 21 includes a third support surface 210, which 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 support surface 210 is flush with the first support surface 410 and / or the second support surface 420 (tolerance is allowed). The third support surface 210 is used to support the folding screen 2000.

[0172] Similarly, referring to Figures 6, 9, and 16, the second fixing member 22 includes a fourth support 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 support surface 220 is flush with the second support surface 420 and / or the first support surface 410 (tolerances are allowed). The fourth support surface 220 is used to support the folding screen 2000.

[0173] In this manner, the provision of the third support surface 210 and the fourth support surface 220 increases the support area for the foldable screen 2000, thereby improving the flatness of the foldable screen 2000 when in its unfolded state. Furthermore, by adding support surfaces to components other than the first support surface 410 and the second support surface 420, the structural strength and support stability are relatively high, thus avoiding the problem of increased support surface area on the same component, which could result in lower strength and deformation in some locations.

[0174] The following describes the matching relationship between the first support member 41 , the second support member 42 and the base 10 .

[0175] 7 and 9 , the base 10 includes a first support portion 111 for supporting 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 raised structure, etc., but is not limited thereto.

[0176] 7 and 9 , the base 10 includes a second support portion 121 for supporting 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 protruding structure, etc., but is not limited thereto.

[0177] With such an 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.

[0178] Optionally, in some embodiments, referring to Figures 7 and 9 , a first limiting groove 11 is defined on the base 10, and 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 and can be a portion or the entire inner bottom wall of the first limiting groove 11.

[0179] Similarly, referring to Figures 7 and 9 , a second limiting groove 12 is defined on the base 10. 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 and can be a portion or the entire inner bottom wall of the second limiting groove 12.

[0180] With this arrangement, 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, which is more stable. Moreover, the inner side wall of the first limiting groove 11 can limit the first support member 41 to restrict 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 restrict the movement of the second support member 42 along the X-axis direction, thereby improving 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 exerting force on 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.

[0181] Optionally, the base 10 is provided with a first limiting groove 11 and a second limiting groove 12 at at least one of its ends along its length direction (i.e., the Y-axis direction). Specifically, the shaft cover 15 of the base 10 is provided with a first limiting groove 11 and a second limiting groove 12 at at least one of its ends along its length direction (i.e., the Y-axis direction); of course, in 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.

[0182] Optionally, referring to Figures 6, 7, and 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 is allowed). The fifth support surface 101 is used to support the folding screen 2000.

[0183] Such a setting 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 support surfaces on components other than 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 set the fifth support surface 101 at other positions of the base 10. The base 10 can be fully utilized to improve the compactness of the structure.

[0184] Optionally, the shaft cover 15 is provided with a first limiting groove 11 and a second limiting groove 12 at at least one of its two ends along its length direction (ie, the Y-axis direction), and the shaft cover 15 includes a fifth supporting surface 101 .

[0185] In order to further increase the space for accommodating the foldable portion 2100 of the folding screen 2000, in some embodiments, please refer to Figures 6 and 9, as well as Figures 19 to 21. Figure 19 shows a structural schematic diagram of the door panel 60 provided in some embodiments of the present application, Figure 20 shows another cross-sectional schematic diagram of the folding assembly 100 provided in some embodiments of the present application when it is in an unfolded state, and Figure 21 shows another cross-sectional schematic diagram of the folding assembly 100 provided in some embodiments of the present application when it is in a folded state. The folding assembly 100 also includes a door panel 60. When the folding assembly 100 is in the unfolded state, the door panel 60 is located between the first support member 41 and the second support member 42. A first mating portion 61 and a second mating portion 62 are provided on the door panel 60, a first push portion 511 is provided on the first auxiliary swing arm 51, and a second push portion 521 is provided on the second auxiliary swing arm 52. When the folding assembly 100 switches from the unfolded state to the folded state, the first pushing portion 511 abuts the first portion 6111 of the first mating portion 61, and the second pushing portion 521 abuts the second portion 6211 of the second mating portion 62, thereby pushing the door panel 60 toward the base 10. This creates space on the side of the door panel 60 facing away from the base 10 for accommodating the foldable portion 2100, further reducing the possibility of wrinkling or bulging 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 the third portion 6112 of the first mating portion 61, and the second pushing portion 521 abuts the fourth portion 6212 of the second mating portion 62, thereby pushing the door panel 60 away from the base 10, thereby facilitating the door panel 60 supporting 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 may be substantially flush with the first support surface 410 and the second support surface 420 (tolerance should be allowed).

[0186] It is understood that the first mating portion 61 and the second mating portion 62 can have various shapes, such as, but not limited to, a hook-shaped structure, a semi-ring structure, a ring structure, or structures with slots or holes. The first portion 6111 and the third portion 6112 are part of the first mating portion 61 and can have various shapes, such as, but not limited to, a flat surface or a raised projection. The second portion 6211 and the fourth portion 6212 are part of the second mating portion 62 and can have various shapes, such as, but not limited to, a flat surface or a raised projection.

[0187] Optionally, in some embodiments, referring to Figures 20 and 21 , the first mating portion 61 and the second mating portion 62 are located on the side of the door panel 60 facing the base 10. The first mating portion 61 defines a first mating slot 611. The inner wall of the first mating slot 611 includes a first portion 6111 and a third portion 6112. The first portion 6111 and the third portion 6112 form a surface structure, and the first portion 6111 and the third portion 6112 are disposed opposite each other. The second mating portion 62 defines a second mating slot 621. The inner wall of the second mating slot 621 includes a second portion 6211 and a fourth portion 6212. The second portion 6211 and the fourth portion 6212 form a surface structure, and the second portion 6211 and the fourth portion 6212 are disposed opposite each other.

[0188] The first auxiliary swing arm 51 is located on one side of the first matching portion 61. Projected along the direction of the rotation axis of the first auxiliary swing arm 51 (i.e., 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.

[0189] The second auxiliary swing arm 52 is located on one side of the second matching portion 62. Projected 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.

[0190] This arrangement improves the compactness of the first auxiliary swing arm 51 and the first mating portion 61 in the width direction of the base 10 (i.e., the X-axis direction) because the projections of the first auxiliary swing arm 51 and the first mating portion 61 along the Y-axis at least partially overlap. Furthermore, the projections of the second auxiliary swing arm 52 and the second mating portion 62 along the Y-axis at least partially overlap, which improves the compactness of the first auxiliary swing arm 51 and the first mating portion 61 in the width direction of the base 10 (i.e., the X-axis direction), thereby facilitating a reduction in the width dimension of the folding assembly 100 and miniaturization of the folding assembly 100. Furthermore, because the first pushing portion 511 deviates from the rotation axis of the first auxiliary swing arm 51, rotation of the first auxiliary swing arm 51 drives the first pushing portion 511 to rotate, thereby enabling the first pushing portion 511 to move the door panel 60. Furthermore, because the second pushing portion 521 deviates from the rotation axis of the second auxiliary swing arm 52, rotation of the second auxiliary swing arm 52 drives the second pushing portion 521 to rotate, thereby enabling the second pushing portion 521 to move the door panel 60.

[0191] It is understandable 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.

[0192] 12 and 20 , the first pushing portion 511 may be connected to the first auxiliary swing arm 51 via a first connecting arm 512. When the first auxiliary swing arm 51 rotates, the first pushing portion 511 is driven to rotate via the first connecting arm 512. For example, the first auxiliary swing arm 51 is fixedly connected to the third rotating shaft 83, and the first connecting arm 512 may be fixed to the third rotating shaft 83.

[0193] 13 and 20 , the second pushing portion 521 can be connected to the second auxiliary swing arm 52 via a second connecting arm 522. When the second auxiliary swing arm 52 rotates, the second pushing portion 521 is driven to rotate via the second connecting arm 522. For example, 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.

[0194] 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 .

[0195] In order to further improve the supporting effect of the folding screen 2000, in some embodiments, please refer to Figures 6, 10 and 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. 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 (tolerances should be allowed), as shown in Figure 16. When the folding assembly 100 is in the folded state, the sixth support surface 710 and the seventh support surface 720 are disposed opposite each other, as shown in Figure 18.

[0196] Such a configuration, by providing the sixth support surface 710 and the seventh support surface 720, 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 support surfaces on components other than 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 (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 prone to deformation when 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 prone to deformation 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).

[0197] Optionally, in some embodiments, refer to Figure 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.

[0198] 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 part 2100 of the folding screen 2000, further reducing the possibility of damage to the foldable part 2100 of the folding screen 2000 due to excessive folding deformation.

[0199] Alternatively, referring to FIG6 , along the direction of the rotation axis (i.e., the Y-axis direction) of the rotational connection between the first main swing arm 31 and the base 10, the third support member 71 and the fourth support member 72 are in 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. This helps to reduce the length of the door panel 60 along the Y-axis direction, and can also be regarded as distributing the support surface for supporting the folding screen 2000 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, thereby improving the support stability of the folding screen 2000.

[0200] Optionally, referring to Figures 10 and 11, the third support member 71 can be connected to the first arc 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 arm 322 of the second main swing arm 32 through a second connecting portion.

[0201] 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).

[0202] 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 be combined 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).

[0203] For example, referring to Figures 6 and 9 , the base 10, door panel 60, first support member 41, and second support member 42 are each provided in one piece, and the first fixing member 21, second fixing member 22, first main swing arm 31, second main swing arm 32, third support member 71, and fourth support member 72 are each provided in two pieces, thereby forming two rotational groups arranged sequentially along the length of the base 10. The first support member 41 is rotationally connected to the first fixing member 21 of both rotational groups, and is also slidably and rotationally connected to the first main swing arms 31 of both rotational groups. The second support member 42 is rotationally connected to the second fixing member 22 of both rotational groups, and is also slidably and rotationally connected to the second main swing arms 32 of both rotational groups. 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 part 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.

[0204] The above is only a specific implementation method of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed in this 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 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 sub-swing arm is connected to a first pushing portion, and the second sub-swing arm is connected to a second pushing portion; when the folding assembly switches from the unfolded state to the folded state, the first pushing portion abuts against the first part of the first matching portion, and the second pushing portion abuts against the second part of the second matching portion, so as to push the door panel toward the base; when the folding assembly switches from the folded state to the unfolded state, the first pushing portion abuts against the third part of the first matching portion, and the second pushing portion abuts against the fourth part of the second matching portion, so as to push the door panel to move back toward the base; wherein, the first part and the third part are arranged relative to each other, and the second part and the fourth part are arranged relative to each other.

2. The folding assembly according to claim 1, wherein: 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 mating groove is provided on the first mating portion, so that the first mating portion forms an annular structure, and the inner wall of the first mating groove includes the first portion and the third portion; a second mating groove is provided on the second mating portion, so that the second mating portion forms an annular structure, and the inner wall of the second mating groove includes the second portion and the fourth portion.

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 claim 6, wherein: The first auxiliary swing arm is located on one side of the first matching portion; along the projection of the first auxiliary swing arm in the direction of the rotation axis, 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 second auxiliary swing arm is located on one side of the second matching portion; along the projection of the second auxiliary swing arm in the direction of the rotation axis, the second auxiliary swing arm and the second matching portion at least partially overlap; The second pushing portion is located on a side of the second auxiliary swing arm facing the second matching portion.

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

9. The folding assembly according to any one of claims 1 to 8, 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.

10. The folding assembly according to claim 9, wherein: 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 and the base rotationally connected does not coincide with the rotation axis of the second auxiliary swing arm and the base rotationally connected.

11. The folding assembly according to claim 9 or 10, 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 engaged, 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.

12. The folding assembly according to any one of claims 9 to 11, characterized in that: Along the length direction of the base, the first main swing arm and the second main swing arm are staggered.

13. The folding assembly according to any one of claims 9 to 12, characterized in that: The first fixing member defines a first sliding space, one end of the first auxiliary swing arm extends into the first sliding space and slides in cooperation with the first sliding space, and the cross-section of the first sliding space is a long strip; the second fixing member defines a second sliding space, one end of the second auxiliary swing arm extends into the second sliding space and slides in cooperation with the second sliding space, and the cross-section of the second sliding space is a long strip.

14. The folding assembly according to any one of claims 1 to 13, characterized in that: Also included are 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 and the fourth gear are meshed, 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.

15. A terminal device, characterized in that: The terminal device includes: The folding assembly according to any one of claims 1 to 14; 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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