Shell assembly and folding screen equipment

Abstract

The embodiment of the invention provides a shell assembly and folding screen equipment. The shell assembly comprises a first shell, a second shell, a third shell, a first hinge, a first magnet and a second magnet, the first shell can rotate relative to the second shell through the first hinge; the third shell can rotate relative to the second shell; the shell assembly has a folded state and a flattened state, and in the folded state, the first shell, the second shell and the third shell are stacked in sequence; the first magnet is fixed to the first hinge, and the second magnet is fixed to the third shell. In the folding state, the first magnet and the second magnet are magnetically attracted; the first shell can be unfolded relative to the second shell from the folded state, so that the first hinge drives the first magnet to move and changes the relative position with the second magnet; when the first shell opens a critical angle relative to the second shell, the third shell can open relative to the second shell under the action of repulsive force of the first magnet to the second magnet. According to the scheme, the unfolding operation of the folding screen equipment can be simplified.

Description

Technical Field

[0001] The present application relates to the field of electronic devices, and in particular to a housing assembly and a folding screen device. Background Art

[0002] Folding screen devices that fold in two sections (or two-fold screen devices) can meet users' needs for large screens and portability to a certain extent. However, with the continuous enrichment of various applications and life scenarios, users hope that folding screen devices can have a larger display area while ensuring portability. In view of this, a three-fold screen device solution has emerged. The three-fold screen device has three layers in the folded state, and has a larger screen area than the two-fold screen device when unfolded. However, since the three-fold screen device has three sections, the unfolding operation is inconvenient and the user experience is not good. Summary of the invention

[0003] The embodiments of the present application provide a shell assembly and a folding screen device, which can simplify the unfolding operation of the folding screen device and improve the user experience.

[0004] In a first aspect, an embodiment of the present application provides a housing assembly that can be used in a folding screen device. The housing assembly includes a first housing, a second housing, a third housing, a first hinge, a first magnet, and a second magnet;

[0005] The first hinge connects the first shell and the second shell, and the first hinge is used to generate mechanical movement so that the first shell rotates relative to the second shell; the third shell is used to rotate relative to the second shell; the shell assembly has a folded state and a flattened state, and in the folded state, the first shell, the second shell and the third shell are stacked in sequence; the movable magnet is fixed to the first hinge, and the second magnet is fixed to the third shell; in the folded state, the first magnet and the second magnet are magnetically attracted to each other; the first shell is used to rotate and open relative to the second shell from the folded state, and the first hinge is used to drive the first magnet to move; when the first shell is opened at a critical angle relative to the second shell, the third shell is used to rotate and open relative to the second shell under the repulsive force of the first magnet on the second magnet.

[0006] In this solution, for the three shells in the multi-fold device, by installing the first magnet in the first hinge and the second magnet in the third shell, when the first shell is unfolded relative to the second shell, the first hinge moves mechanically and drives the first magnet to change its position relative to the second magnet, so that a repulsive force is generated between the two magnets, and the repulsive force can drive the third shell to unfold automatically. Therefore, the user can hold the third shell and the first shell with both hands and pull them to both sides to flatten the device at one time. Therefore, this solution makes the user's unfolding operation relatively simple and can improve the user experience.

[0007] In an implementation of the first aspect, the first hinge includes a driving rod, a lever and a bracket; the driving rod has a concave surface; one end of the lever has a first convex bulge, and the other end of the lever is connected to the bracket; the first magnet is fixed to the bracket; in the process of the first shell opening a critical angle relative to the second shell, the concave surface contacts the first convex bulge, the driving rod is used to drive the lever to move, the lever is used to drive the bracket to move, and the bracket is used to drive the first magnet to move. This solution can achieve the purpose of driving the first magnet to move and generate repulsive force through the movement of the first hinge mechanism by designing the structure of the first hinge.

[0008] In an implementation of the first aspect, the first hinge further includes a first mounting member, the first mounting member is fixedly connected to the second shell, the lever and the bracket are both provided on the first mounting member, the lever is rotatably connected to the first mounting member, one end of the lever adjacent to the bracket is slidably connected to the bracket, and the bracket is slidably connected to the first mounting member; in the process of the first shell opening a critical angle relative to the second shell, the driving rod is used to drive the lever to rotate relative to the first mounting member and slide relative to the bracket, and the lever is used to drive the bracket to slide relative to the first mounting member. This solution can achieve the movement coordination of the lever and the bracket by designing the first mounting member and the connection method of the lever and the bracket with the first mounting member, thereby achieving the purpose of driving the first magnet to move and generate repulsive force.

[0009] In an implementation of the first aspect, the lever has a sliding portion at one end adjacent to the bracket, the bracket is provided with a sliding cavity, the sliding portion is located in the sliding cavity and is in sliding contact with an inner wall of the sliding cavity. In this solution, by designing the specific structure of the lever and the bracket, the movement coordination of the lever and the bracket can be achieved with a simple and reliable structure.

[0010] In an implementation of the first aspect, the first mounting member has a second convex bulge; the driving rod includes a first layer and a second layer, the first layer and the second layer have a step difference, the first layer has a cam surface, the cam surface is in contact with the second convex bulge, and the concave surface is the surface of the second layer; the first hinge includes a first elastic member, one end of the first elastic member is connected to the first mounting member, and the other end of the first elastic member is connected to the bracket; in the folded state, the cam surface is in contact with the root of one side of the second convex bulge; in the process of the first shell opening a critical angle relative to the second shell, the driving rod is used to move relative to the first mounting member, the cam surface is used to move from the root of one side of the second convex bulge to the top of the second convex bulge, and the first elastic member is used to generate compression deformation; when the critical angle is reached and the first shell continues to open relative to the second shell, the cam surface is used to move from the top of the second convex bulge to the root of the other side of the second convex bulge, the concave surface is separated from the first convex bulge, and the first elastic member is used to restore the deformation and push the bracket to slide back to an initial position relative to the first mounting member.

[0011] In this solution, by designing the convex bump on the first mounting member and the cam surface on the driving rod, the motion coordination between the driving rod and the first mounting member can be realized with a simple and reliable structure, so as to achieve the purpose of driving the first magnet to move and generate a repulsive force. In addition, by the motion coordination between the driving rod and the first mounting member, the first magnet can be reset after crossing the critical angle, so that the magnet driving mechanism can work repeatedly.

[0012] In an implementation of the first aspect, the first hinge further includes a main shaft and a rotating arm, the first mounting member is rotationally connected to the main shaft, the rotating arm is rotationally connected to the main shaft and slidably connected to the first mounting member; the driving rod is mounted on the rotating arm; during the rotation of the first shell relative to the second shell, the first shell is used to rotate relative to the main shaft, the first mounting member and the rotating arm are both used to rotate around the main shaft, the rotating arm is also used to slide relative to the first mounting member, and drive the driving rod to move relative to the first mounting member. In this solution, by designing the main shaft and the rotating arm, as well as the connection method between the first mounting member and the main shaft, the connection method between the rotating arm and the main shaft and the first mounting member, and the connection method between the driving rod and the rotating arm, the rotating arm can perform a compound movement, so that the rotating arm can move relative to the first mounting member toward the direction close to the main shaft and away from the main shaft, so that the rotating arm can drive the driving rod to move relative to the first mounting member toward the direction close to the main shaft and away from the main shaft, so as to achieve the movement coordination between the driving rod and the first mounting member, and finally achieve the purpose of driving the first magnet to move.

[0013] In an implementation of the first aspect, the first hinge further comprises a second elastic member, one end of the second elastic member is connected to the rotating arm, and the other end of the second elastic member is connected to the driving rod. In this solution, the second elastic member is designed, and the elastic force of the second elastic member can keep the cam surface of the driving rod in contact with the convex bump on the first mounting member, so that the first hinge can work continuously and reliably.

[0014] In an implementation of the first aspect, the first hinge further includes a second mounting member, the second mounting member is rotatably connected to the main shaft and fixedly connected to the first housing. In this solution, by designing the second mounting member and the connection method between the second mounting member, the main shaft and the first housing, a housing assembly solution that is reliable, easy to mass produce, and meets product design requirements can be achieved.

[0015] In an implementation of the first aspect, the shell assembly further includes a second hinge, the second hinge and the first hinge are respectively located on opposite sides of the second shell, the second hinge is connected to both the third shell and the second shell, and the second hinge is used to generate a mechanism movement so that the third shell rotates relative to the second shell. In this solution, the three shells can be connected in sequence by two hinges, and when the shell assembly is folded, the three shells can roughly form a Z-shaped structure. For devices with this Z-shaped structure, this solution can simplify the user's unfolding operation and improve the user experience.

[0016] In the second aspect, an embodiment of the present application provides a folding screen device, including a flexible screen and the shell assembly, wherein the flexible screen is fixed to the shell assembly and covers the first shell, the first hinge, the second shell and the third shell. In this solution, when the first shell is unfolded relative to the second shell, the third shell can automatically open under the repulsive force between the magnets, or under the combined action of the repulsive force and the unfolding force of the flexible screen, so that the user can hold the third shell and the first shell with both hands respectively and pull them to both sides to flatten the device at one time. Therefore, this solution makes the user's unfolding operation relatively simple and can improve the user experience.

[0017] In an implementation of the second aspect, in the folded state, the portion of the flexible screen covering the first shell is located on the outside of the first shell, and the portion of the flexible screen covering the third shell is located on the inside of the third shell. In this solution, the first shell may be an outer folding shell, and the third shell may be an inner folding shell. For a folding screen device of this architecture, this solution can simplify the user's unfolding operation and improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the structure of the folding screen device in the folded state according to an embodiment of the present application;

[0019] Figure 2 yes Figure 1 A schematic diagram of the structure of a flexible screen of a folding screen device;

[0020] Figure 3 yes Figure 1 A schematic diagram of an unfolded state of a folding screen device;

[0021] Figure 4 yes Figure 1 Schematic diagram of another unfolded state of the folding screen device;

[0022] Figure 5 yes Figure 1 Schematic diagram of another unfolded state of the folding screen device;

[0023] Figure 6 yes Figure 1 Schematic diagram of another unfolded state of the folding screen device;

[0024] Figure 7 yes Figure 5 A D-direction structural diagram of a housing assembly of a folding screen device;

[0025] Figure 8 yes Figure 7 A schematic diagram of the exploded structure of the first hinge in FIG.

[0026] Fig. 9 yes Figure 8 A schematic diagram of the local enlarged structure at X in the middle;

[0027] Fig.10 yes Fig. 9 A schematic diagram of the assembly structure of the components shown;

[0028] Fig.11 It is a schematic diagram of the partial assembly structure of the mounting member, the lever, the elastic member and the bracket in the first hinge;

[0029] Fig.12 yes Fig.11 a schematic diagram of the exploded structure of the structure shown;

[0030] Fig.13 is a schematic diagram of the exploded structure of the mounting member, the elastic member, the first magnet and the bracket in the first hinge;

[0031] Fig.14 is a schematic diagram of the assembly structure of the rotating arm, the elastic member and the driving rod in the first hinge;

[0032] Fig.15 yes Fig.14 A schematic diagram of the structure of the driving rod in FIG.

[0033] Fig.16 yes Figure 7 A schematic diagram of a partial structure of the first hinge in FIG.

[0034] Fig.17 yes Fig.16 A schematic diagram of the local enlarged structure at E in the middle;

[0035] Fig.18 yes Fig.17 A schematic diagram of the local enlarged structure at F in the middle;

[0036] Fig.19 yes Fig.18 A schematic diagram of the structure of the structure shown in another state;

[0037] Fig. 20 is with Fig.19 Schematic diagram of the status of the corresponding folding screen device;

[0038] Fig.21 yes Fig. 20 Schematic diagram of the local enlarged structure at G in the middle;

[0039] Fig. 22 yes Fig.18 A schematic diagram of the structure of the structure shown in another state;

[0040] Fig.23 is with Fig. 22 Schematic diagram of the status of the corresponding folding screen device;

[0041] Fig.24 yes Fig.23 Schematic diagram of the local enlarged structure at H in the middle. DETAILED DESCRIPTION

[0042] For ease of understanding, the relevant technical terms involved in the embodiments of the present application are explained and described below.

[0043] In the description of the embodiments of the present application, unless otherwise specified, "plurality" means two or more.

[0044] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood to imply or suggest relative importance or implicitly indicate the number of technical features indicated. Features qualified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0045] "Connect" should be understood in a broad sense, for example, "connect" can be detachably connected or non-detachably connected; it can be directly connected or indirectly connected through an intermediate medium. "Fix" should also be understood in a broad sense, for example, "fix" can be directly fixed or indirectly fixed through an intermediate medium.

[0046] The directional terms mentioned in the embodiments of the present application, such as "upper", "lower", "front", "back", "left", "right", "inner", "outer", "side", "top", "bottom", etc., are only reference directions of the drawings. The directional terms are for better and clearer explanation and understanding of the embodiments of the present application, and do not explicitly or implicitly indicate that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, etc., and therefore cannot be understood as limiting the embodiments of the present application.

[0047] In the description of the embodiments of the present application, unless otherwise specified, "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone.

[0048] An embodiment of the present application provides a folding screen device, which has a folded state and a flattened state. In the folded state, the folding screen device is completely folded and occupies a minimum space. In the flattened state, the folding screen device is fully unfolded, and all of its display surfaces can face the user. The folding screen device can be folded into an n-layer structure, n ≥ 3, and n can be an odd number or an even number. Any adjacent three-layer structure in the n-layer structure can approximately form an S shape or a Z shape. The following will take n = 3, that is, the folding screen device is a three-fold screen device as an example for explanation.

[0049] like Figure 1 As shown, the folding screen device 1 is in a folded state, and the folding screen device 1 may include a shell assembly 3 and a flexible screen 2.

[0050] The housing assembly 3 may include a first housing 5, a first hinge 4, a second housing 6, a second hinge 8, and a third housing 7. The first housing 5, the second housing 6, and the third housing 7 are stacked in sequence. The first hinge 4 and the second hinge 8 are respectively connected to opposite ends of the second housing 6 (e.g. Figure 1 The first shell 5 and the second shell 6 are both connected to the first hinge 4, and the first shell 5 and the second shell 6 can realize relative rotation through the mechanism movement of the first hinge 4. The third shell 7 and the second shell 6 are both connected to the second hinge 8, and the third shell 7 and the second shell 6 can realize relative rotation through the mechanism movement of the second hinge 8.

[0051] In this embodiment, the first housing 5, the second housing 6 and the third housing 7 can be a single component or a component assembled from multiple components, and the first hinge 4 and the second hinge 8 can be a component assembled from multiple components. This embodiment does not limit the specific structure of the above-mentioned housing and hinge.

[0052] Figure 2 Alone indicated Figure 1 The flexible screen 2 in the folding screen device 1 shown. Figure 2 As shown, the flexible screen 2 may include a first portion 21, a second portion 22, and a third portion 23 connected in sequence, and each of the three portions includes at least a flat area of ​​the flexible screen 2. Figure 2 and Figure 1 As shown, the first part 21 can cover the outside of the first shell 5, that is, the side facing away from the second shell 6, so the first part 21 is exposed, and the user can see the picture displayed by the first part 21. The second part 22 can cover the side of the second shell 6 facing the third shell 7, and the third part 23 can cover the side of the third shell 7 facing the second shell 6, so the second part 22 and the third part 23 are hidden between the second shell 6 and the third shell 7. The first shell 5, the second shell 6 and the flexible screen covered thereon can correspond to a two-fold outer folding screen device, so the first hinge 4 can be called an outer folding hinge, and the first shell 5 can be called an outer folding shell. The second shell 6, the third shell 7 and the flexible screen covered thereon can correspond to a two-fold inner folding screen device, so the second hinge 8 can be called an inner folding hinge, and the third shell 7 can be called an inner folding shell.

[0053] like Figure 1 As shown, the folding screen device 1 can be folded into three layers, namely layer A, layer B and layer C. Layer A can include the third shell 7 and part of the flexible screen thereon, layer B can include the second shell 6 and part of the flexible screen thereon, and layer C can include the first shell 5 and part of the flexible screen thereon. Layers A, B and C can be connected in sequence to form an approximate S or Z shape.

[0054] Easy to understand, based on Figure 1 As shown in the figure, the hinge, shell and flexible screen area are increased to obtain a folding screen device with n>3. Among them, the number of shells is n, the number of hinges is n-1, and any adjacent three-layer structure in the n-layer structure can be approximately formed Figure 1 The S-shape or Z-shape in the figure.

[0055] Figure 3-Figure 6 It can respectively represent different unfolding states of the folding screen device 1.

[0056] Combination Figure 1 , Figure 3 and Figure 4 As shown, the user can flip the first shell 5 so that the first shell 5 opens a certain angle a relative to the second shell 6. Figure 3 As shown, before reaching the angle a, the third shell 7 and the second shell 6 can continue to maintain the folded state; Figure 4 As shown, when the angle a is reached, the third housing 7 can automatically open relative to the second housing 6 to release the folded state. The angle a can be called a critical angle, which can be designed as needed, including but not limited to about 1° to 60°.

[0057] Combined Figure 4 with Figure 5 As shown, when the third housing 7 is opened relative to the second housing 6, the user can hold the third housing 7 and the first housing 5 with both hands and pull them apart, thereby flattening the folding screen device 1. At this time, all the display surfaces of the flexible screen 2 can face the user, enabling the user to experience the three-section large-screen display.

[0058] As can be easily understood from the above, for the folding screen device 1 of this embodiment, when the first housing 5 is opened at an angle a relative to the second housing 6, the third housing 7 can automatically open relative to the second housing 6, allowing the user to hold the third housing 7 and the first housing 5 with both hands and pull them apart, thereby flattening the three-section screen of the folding screen device 1 at one time. This design makes the unfolding operation of the user relatively simple and can improve the user experience.

[0059] Combined Figure 1 with Figure 6 As shown, the user can also flip the third housing 7 and flatten the third housing 7 relative to the second housing 6. At this time, the second part 22 and the third part 23 of the flexible screen 2 can face the user. During this process, the first housing 5 and the second housing 6 can continue to maintain the folded state. This design can keep the first housing 5 and the second housing 6 in the folded state, so that the folding screen device 1 can occupy a smaller space and has a certain portability; it can also unfold two sections of the screen to provide a larger screen area. Therefore, this can balance the user needs of portability and large-screen display.

[0060] In this embodiment, the above product characteristics can be realized through the structural design of the housing assembly 3. The following will be described in detail.

[0061] Figure 7 is Figure 5 the D-direction view of the folding screen device 1 in after removing the flexible screen 2, Figure 7 which can represent the schematic top view structure of the housing assembly 3 in the flattened state, Figure 8 which can represent Figure 7 the exploded structure of the first hinge 4 in the housing assembly 3 in , Fig. 9 is Figure 8 the partial enlarged structural schematic diagram at X in , Fig.10 is Fig. 9 the assembly schematic diagram of the components shown.

[0062] As Figure 7-Figure 9As shown, the first hinge 4 may include a main shaft 41, a mounting member 43 (which may be referred to as a first mounting member 43), a mounting member 42 (which may be referred to as a second mounting member 42), a rotating arm 44, a lever 45, a bracket 46, an elastic member 47 (which may be referred to as a second elastic member 47), a driving rod 48, an elastic member 49 (which may be referred to as a first elastic member 49), etc. The housing assembly 3 may further include a first magnet 50 and a second magnet 9, wherein the first magnet 50 is fixed to the bracket 46, and the second magnet 9 is fixed to the third housing 7.

[0063] like Figure 7 As shown, the main shaft 41 is located between the first shell 5 and the second shell 6, and the main shaft 41 can serve as the skeleton structure of the first hinge 4. The main shaft 41 can be strip-shaped as a whole, and a plurality of activity spaces can be formed inside it, which are connected to the outside of the main shaft 41 and can cooperate with other components (which will be described below).

[0064] like Figure 7 and Figure 8 As shown, the mounting member 42 can be fixed to the first housing 5 and rotatably connected to the main shaft 41. Thus, the first housing 5 can rotate relative to the main shaft 41.

[0065] like Figure 7 As shown, the mounting member 43 can be fixed to the second housing 6. Figure 8-Figure 10 As shown, the mounting member 43 can be rotatably connected to the main shaft 41. Schematically, through the mechanism design of the first hinge 4, the mounting member 43 can be linked with the mounting member 42, that is, when the mounting member 42 rotates relative to the main shaft 41, the mounting member 43 can also rotate relative to the main shaft 41.

[0066] Fig.11 The partial assembly structure of the mounting member 43, the bracket 46, the elastic member 49 and the lever 45 can be illustrated. Fig.12 yes Fig.11 The exploded schematic diagram of the structure shown, wherein the lever 45 is exploded. Fig.13 is based on Fig.11 The schematic diagram of the exploded structure shown in the figure omits the lever 45 and decomposes the bracket 46.

[0067] like Fig.12 As shown, a convex bump 43a (which may be referred to as a second convex bump 43a) may be formed on the mounting member 43. Fig.12The convex bump 43a protrudes upward from the viewing angle, and the highest point of the convex bump 43a can be called the top, and the part opposite to the top can be called the root of the convex bump 43a. The convex bump 43a is used to cooperate with the driving rod 48 (to be described below). The mounting member 43 can also have a slide groove 43b, which is used to accommodate the bracket 46 and the elastic member 49 and serve as a movement space for the bracket 46 (to be described below). The mounting member 43 can also have a hole 43c, which is used to form a rotational cooperation with the lever 45 (to be described below).

[0068] like Fig.11 and Fig.12 As shown, the lever 45 can be mounted on the mounting member 43. The lever 45 has a rotating portion 45b on one side facing the mounting member 43. The rotating portion 45b can be, for example, a rotating shaft, and the rotating portion 45b is rotatably connected to the hole 43c on the mounting member 43. In another embodiment, the rotating portion 45b can also be a hole, and the mounting member 43 can be provided with a rotating shaft, which forms a rotational fit with the hole.

[0069] like Fig.12 As shown, the lever 45 may also have a convex bump 45a (which may be referred to as a first convex bump 45a) and a sliding portion 45c, and the convex bump 45a and the sliding portion 45c are respectively located on opposite sides of the rotating portion 45b. The convex bump 45a may be located at the edge of the lever 45, and may cooperate with the driving rod 48 (to be described below). The sliding portion 45c is located on the side of the lever 45 facing the mounting member 43, and the sliding portion 45c is slidably connected to the bracket 46 (to be described below). The sliding portion 45c may be, for example, in the shape of a rod.

[0070] like Fig.12 and Fig.13 As shown, the bracket 46 can be installed in the slide groove 43b of the mounting member 43 and can be close to the right side of the slide groove 43b. Fig.12 The position of the middle bracket 46 is called the initial position. The end of the bracket 46 close to the lever 45 can form a sliding cavity 46a, which can be a through hole or a blind hole. The sliding cavity 46a can be in the shape of a runway, for example. The sliding portion 45c of the lever 45 can extend into the sliding cavity 46a and can slide in contact with the inner wall of the sliding cavity 46a. When the sliding portion 45c moves, the bracket 46 can be driven to move in the sliding groove 43b (to be described below), and the sliding portion 45c slides relative to the inner wall of the sliding cavity 46a.

[0071] like Fig.12 and Fig.13 As shown, the elastic member 49 can be installed in the slide groove 43b of the mounting member 43. One end of the elastic member 49 can be connected to the side wall of the slide groove 43b (for example Fig.10The elastic member 49 may be a plurality of springs or a single spring, or a plurality of springs or a single spring, or other elastic members. The elastic member 49 may provide elastic restoring force for the bracket 46.

[0072] like Figure 7 As shown, the first magnet 50 can be fixed on the bracket 46. Schematically, a mounting groove is provided on the bracket 46, and the opening of the mounting groove is located on the side of the bracket 46 facing the mounting member 43, and the first magnet 50 can be fixed in the mounting groove. Figure 7 As shown, when the housing assembly 3 is in a flattened state, the first magnet 50 and the second magnet 9 are far apart; when the housing assembly 3 is in a folded state, the first magnet 50 and the second magnet 9 are close together, and the magnetic force between them is strong (to be described below). Schematically, either the first magnet 50 or the second magnet 9 can be a more complex Halbach array, or a simpler magnet structure.

[0073] like Fig. 9 and Fig.10 As shown, the right end of the rotating arm 44 can be rotatably connected to the main shaft 41, and the left end of the rotating arm 44 can be slidably connected to the mounting member 43. Fig.14 As shown, a mounting groove 44a may be provided at the left end of the rotating arm 44. An elastic member 47 may be located in the mounting groove 44a, and a portion of the driving rod 48 may also be located in the mounting groove 44a. One end of the elastic member 47 may be connected to the side wall of the mounting groove 44a, and the other end may be connected to the driving rod 48. The elastic member 47 may be a spring or other member capable of providing elastic force.

[0074] like Fig.15 As shown, the driving rod 48 may include a first layer 481 and a second layer 482 . The second layer 482 may be connected to one side of the first layer 481 , and a step is formed between the second layer 482 and the first layer 481 .

[0075] like Fig.15 As shown, the second layer 482 may form a mounting groove 482a, and a positioning column 482b may be provided in the mounting groove 482a. Fig.15 and Fig.14 As shown, a portion of the elastic member 47 can extend into the installation groove 482a and pass through the positioning column 482b, so that the elastic member 47 can be deformed along the extension direction of the positioning column 482b. The second layer 482 can also have a concave surface 482c, which can be the outer surface of the side wall of the installation groove 482a, and the concave surface 482c is concave toward the inside of the second layer 482 (or concave toward the installation groove 482a).

[0076] like Fig.15As shown, at least a portion of the edge of the first layer 481 may extend beyond the second layer 482. The end of the first layer 481 may form a cam surface 481a, and the concave surface 482c may be located within the area surrounded by the cam surface 481a, with a certain distance between the cam surface 481a and the concave surface 482c.

[0077] Combination Fig.15 and Fig.14 As shown, a portion of the first layer 481 and a portion of the second layer 482 of the driving rod 48 can be located in the mounting groove 44a, and the remaining portion of the first layer 481 and the remaining portion of the second layer 482 can be located outside the mounting groove 44a. The cam surface 481a of the first layer 481 can be located outside the mounting groove 44a and can contact the right root of the convex 43a. The second layer 482 can be substantially on the same plane as the convex 45a of the lever 45. The driving rod 48 can move in the mounting groove 44a, and the elastic member 47 can provide elastic restoring force for the driving rod 48.

[0078] Fig.16 Schematic diagram showing the partial assembly structure of the first hinge 4 in a top view, Fig.17 for Fig.16 Schematic diagram of the local enlarged structure at point E in the middle. Fig.18 for Fig.17 The local enlarged structural diagram at F in the figure. Fig.18 As shown, the lever 45 mounted on the mounting member 43 can be located between the driving rod 48 and the bracket 46. The convex 45a of the lever 45 and the convex 43a of the mounting member 43 are both close to the driving rod 48.

[0079] In this embodiment, the main shaft 41, the mounting member 42, the mounting member 43, the rotating arm 44, the elastic member 47, the driving rod 48, the lever 45, the bracket 46 and the elastic member 49 can form a magnet driving mechanism, and the magnet driving mechanism can drive the first magnet 50 to move (described below). Fig.16As shown, schematically, there can be two mounting members 42, rotating arms 44, elastic members 47, driving rods 48, levers 45 and elastic members 49. Among them, one mounting member 42, one rotating arm 44, one elastic member 47, one driving rod 48, one lever 45 and one elastic member 49 are located at one end of the bracket 46, and together with the bracket 46, they form a magnet driving mechanism; another mounting member 42, another rotating arm 44, another elastic member 47, another driving rod 48, another lever 45 and another elastic member 49 are located at the other end of the bracket 46, and together with the bracket 46, they form another magnet driving mechanism. The two magnet driving mechanisms can share the main shaft 41, the mounting member 43 and the bracket 46. By designing two magnet driving mechanisms, the opposite ends of the bracket 46 can move synchronously, so that the movement of the bracket 46 is relatively stable, and thus the first magnet 50 can move accurately. In other embodiments, the first mounting member can be longer, and the opposite ends of the first mounting member respectively form a magnet driving mechanism (equivalent to connecting the two mounting members 42 into one). Alternatively, the structure can be adjusted to achieve a design with only one magnet drive mechanism.

[0080] The movement process of the housing assembly 3 will be described below, wherein the movement of a magnet drive mechanism is taken as an example.

[0081] refer to Fig.18 and Figure 7 As shown, from the flattened state, when the first housing 5 rotates and folds relative to the second housing 6, the first housing 5 will drive the mounting member 42 to rotate, the mounting member 43 will be linked, and the mounting member 43 will drive the rotating arm 44 to rotate around the main shaft 41. Since the rotating arm 44 is slidably connected to the mounting member 43, there will be relative movement between the mounting member 43 and the rotating arm 44, for example, Fig.18 The mounting member 43 will move to the right relative to the rotating arm 44 in the viewing angle. As the mounting member 43 continues to move relative to the rotating arm 44, the right root, top and left root of the convex bump 43a of the mounting member 43 will contact the cam surface 481a in sequence. In this process, the driving rod 48 will move upward (when the cam surface 481a is located on the right side of the top of the convex bump 43a) and downward (when the cam surface 481a is located on the left side of the top of the convex bump 43a), the lever 45 and the bracket 46 will move with the mounting member 43, and there is basically no relative movement between the lever 45, the bracket 46 and the mounting member 43, and the convex bump 45a of the lever 45 will gradually approach the cam surface 481a. When the left root of the convex bump 43a contacts the cam surface 481a and the convex bump 45a contacts the concave surface 482c, the first shell 5 can basically be completely folded with the second shell 6.

[0082] In this embodiment, from the folded state, during the process of the first housing 5 unfolding relative to the second housing 6, the lever 45 can push the bracket 46 to move relative to the mounting member 43, thereby changing the position of the first magnet 50. This will be described in detail below with reference to the accompanying drawings.

[0083] Fig.19 The following table can be used: Figure 1 The folded state of the folding screen device 1 in FIG. Fig.19 As shown, in the folded state, the cam surface 481a of the driving rod 48 contacts the left root of the convex bump 43a of the mounting member 43, the concave surface 482c of the driving rod 48 contacts the convex bump 45a of the lever 45, the sliding portion 45c of the lever 45 is located at the upper end of the sliding cavity 46a of the bracket 46, and the bracket 46 can be located on the right side of the sliding groove 43b.

[0084] Fig. 20 and Fig.21 The positional relationship between the first magnet 50 and the second magnet 9 in the folding screen device 1 in the folded state can be illustrated. Fig.21 As shown, both the first magnet 50 and the second magnet 9 can be Halbach arrays, and the opposite magnetic poles of the first magnet 50 and the second magnet 9 are opposite, for example, the N pole on the left side of the first magnet 50 is opposite to the S pole of the second magnet 9, and the S pole of the first magnet 50 is opposite to the N pole on the right side of the second magnet 9. The magnetic force between the first magnet 50 and the second magnet 9 is an attraction force as a whole, which can overcome the unfolding force of the flexible screen 2 (the flexible screen 2 in the folded state has a tendency to unfold, so it will apply a force to the shell assembly 3, which can be called an unfolding force), so that the first shell 5 and the second shell 6 remain in the folded state.

[0085] Combination Figure 1 and Fig.19As shown, from the folded state, when the first housing 5 rotates and unfolds relative to the second housing 6, the first housing 5 will drive the mounting member 42 to rotate, and the mounting member 43 will be linked and drive the rotating arm 44, the driving rod 48, the lever 45 and the bracket 46 to rotate relative to the main shaft 41. Since the rotating arm 44 is slidably connected to the mounting member 43, the rotating arm 44 can also move rightward relative to the mounting member 43. During the relative movement of the rotating arm 44, the cam surface 481a can move from the left root of the convex bump 43a to the top of the convex bump 43a, the driving rod 48 is squeezed by the convex bump 43a, and the elastic member 47 is compressed; the concave surface 482c can maintain contact with the convex bump 45a, so that the driving rod 48 hooks the convex bump 45a through the concave surface 482c, and drives the lever 45 to rotate clockwise. When the lever 45 rotates clockwise, the sliding portion 45c can slide downward relative to the sliding cavity 46a and press against the inner wall of the sliding cavity 46a, so that the lever 45 can drive the bracket 46 to slide leftward relative to the sliding groove 43b, that is, drive the bracket 46 to slide in a direction away from the main shaft 41. The first magnet 50 in the bracket 46 also slides leftward relative to the sliding groove 43b (that is, slides in a direction away from the main shaft 41), and the elastic member 49 is compressed.

[0086] Fig. 22 Indicates from Fig.19 From the state shown, the first shell 5 is in a state when the critical angle a is opened relative to the second shell 6. Fig. 22 Can correspond Figure 3 The state of the folding screen device 1 is shown. Fig. 22 As shown, the cam surface 481a can move to near the top of the convex bump 43a, and due to the upward pushing effect of the convex bump 43a on the cam surface 481a, the concave surface 482c is about to separate from the convex bump 45a; the lever 45 rotates around its rotating portion 45b through a certain angle, the sliding portion 45c can slide to the lower end of the sliding cavity 46a, the bracket 46 can slide to the left side of the sliding groove 43b, and the first magnet 50 in the bracket 46 can basically reach the maximum stroke.

[0087] Fig.23 and Fig.24 It represents the positional relationship between the first magnet 50 and the second magnet 9 in the folding screen device 1 when the critical angle a is reached. Fig.24 As shown, the first magnet 50 and the second magnet 9 have like poles opposite to each other, for example, the N pole on the left side of the first magnet 50 is opposite to the N pole on the right side of the second magnet 9. Fig.21 , Fig.24 The attraction between the first magnet 50 and the second magnet 9 is reduced and the repulsion is increased, resulting in that the attraction between the first magnet 50 and the second magnet 9 is insufficient to overcome the unfolding force of the flexible screen 2. Figure 4As shown, the third shell 7 will be opened at a certain angle relative to the second shell 6. In other embodiments, the characteristics of the first magnet 50 and the second magnet 9 can be set, and for the scene where the unfolding force of the flexible screen 2 is small, the third shell 7 can be unfolded only by the repulsive force between the first magnet 50 and the second magnet 9.

[0088] In this embodiment, by designing the specific value of the critical angle a, the third shell 3 can be popped open before the first shell 5 is flattened compared to the second shell 6, so that the user's operation time for unfolding the folding screen device 1 is shorter, which is conducive to improving the user experience.

[0089] In summary, this embodiment, by designing the above-mentioned magnet drive mechanism, can trigger the mechanism movement of the magnet drive mechanism during the unfolding process of the first shell 5, change the relative position of the first magnet 50 and the second magnet 9, and then change the magnetic force between the first magnet 50 and the second magnet 9; when the first shell 5 unfolds the critical angle a, the magnetic force between the first magnet 50 and the second magnet 9 is not enough to overcome the unfolding force of the flexible screen 2, so that the third shell 7 can be automatically opened relative to the second shell 6. In this way, the user can hold the third shell 7 and the first shell 5 with both hands and pull them to both sides, so as to flatten the three sections of the folding screen device 1 at one time. The solution of this embodiment makes the user's unfolding operation relatively simple and can improve the user experience.

[0090] Combination Fig. 22 and Fig.18 As shown, after reaching the critical angle a, the first shell 5 can continue to expand relative to the second shell 6, so that the top of the convex bump 43a can continue to push the cam surface 481a upward, so that the concave surface 482c is completely separated from the convex bump 45a, and the driving rod 48 is unhooked from the lever 45. After unhooking, the elastic force of the elastic member 49 will push the bracket 46 to slide to the right side of the slide groove 43b, the bracket 46 will return to the initial position, and the first magnet 50 will return to the position where it can be magnetically attracted to the second magnet 9. The bracket 46 will drive the sliding portion 45c of the lever 45 to rotate around the rotating portion 45b. As the first shell 5 continues to rotate relative to the second shell 6, the sliding portion 45c will slide to the upper end of the sliding cavity 46a, and the cam surface 481a will move to the right root of the convex bump 43a.

[0091] In this embodiment, when the critical angle a is just crossed, the bracket 46 and the first magnet 50 can be reset so that the magnet drive mechanism can achieve correct mechanism movement in the subsequent process of "from the folded state to the opening critical angle a", so that the magnet drive mechanism can work repeatedly. In addition, since the third shell 7 has been opened after crossing the critical angle a, there is no need to further weaken the attraction between the first magnet 50 and the second magnet 9 and increase the repulsion between the two. Fig.18As shown, the bracket 46 is reset to the right instead of continuing to move to the left, which can prevent the bracket 46 from making invalid movements, making the magnet drive mechanism more streamlined and free of redundant actions.

[0092] Combined with the above and reference Figure 1 , Figure 6 and Figure 7 As shown, it can be understood that: since the magnet drive mechanism is not provided on the third shell 7, the magnet drive mechanism is not related to the third shell 7, so opening the third shell 7 from the folded state does not trigger the linkage of the first shell 5, so the user can only unfold the third shell 7, while keeping the first shell 5 and the second shell in the folded state, so as to achieve two-fold use. The solution of this embodiment can make the folding screen device 1 occupy a smaller space and have a certain degree of portability, and can also make the two sections of the screen unfold to provide a larger screen area, so it can take into account the user needs of portability and large-screen display.

[0093] As described above, the magnet drive mechanism can be disposed between the second shell 6 and the first shell 5 as the outer folding shell, and the magnet drive mechanism can connect the second shell 6 and the first shell 5 as the outer folding shell. Figure 1 and Figure 7 As shown, the magnet drive mechanism can also be arranged on the second shell 6 and the third shell 7 as the inner folding shell, and the magnet drive mechanism can connect the second shell 6 and the third shell 7. Among them, the second magnet 9 can be installed on the first shell 5, and when the third shell 7 unfolds the critical angle a, the first shell 5 will automatically open a certain angle. The design of the magnet drive mechanism in this embodiment is similar to that described above, and this embodiment can also have the same technical effect as the above embodiment, which will not be described in detail here.

[0094] According to the above, it can be understood that for a folding screen device that can be folded into more than three layers, the magnet drive mechanism, the first magnet and the second magnet can also be provided. Among them, the two outermost shells in the folding screen device can be respectively referred to as the first shell and the third shell, one of the first shell and the third shell is an outer folding shell, and the other is an inner folding shell, or the first shell and the third shell are both outer folding shells, or the first shell and the third shell are both inner folding shells; the shell located between the first shell and the third shell and adjacent to the first shell is called the second shell; the third shell and the second shell can be adjacent, or at least one shell can be between the two. The magnet drive mechanism can connect the first shell and the second shell, and the second magnet can be installed on the third shell; or the magnet drive mechanism can connect the third shell and the second shell, and the second magnet can be installed on the first shell.

[0095] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A housing assembly for a folding screen device, It is characterized in that comprising a first shell, a second shell, a third shell, a first hinge, a first magnet and a second magnet; A first hinge connects the first shell and the second shell, and the first hinge is used to generate a mechanism movement so that the first shell rotates relative to the second shell; the third shell is used to rotate relative to the second shell; the shell assembly has a folded state and a flattened state, and in the folded state, the first shell, the second shell and the third shell are stacked in sequence; the movable magnet is fixed to the first hinge, and the second magnet is fixed to the third shell; In the folded state, the first magnet and the second magnet are magnetically attracted to each other; The first housing is used to rotate and open relative to the second housing from the folded state, and the first hinge is used to drive the first magnet to move; When the first shell is opened at a critical angle relative to the second shell, the third shell is used to rotate and open relative to the second shell under the repulsive force of the first magnet on the second magnet.

2. The housing assembly according to claim 1, It is characterized in that The first hinge comprises a driving rod, a lever and a bracket; the driving rod has a concave surface; one end of the lever has a first convex bump, and the other end of the lever is connected to the bracket; the first magnet is fixed to the bracket; When the first shell opens a critical angle relative to the second shell, the concave surface contacts the first convex surface, the driving rod is used to drive the lever to move, the lever is used to drive the bracket to move, and the bracket is used to drive the first magnet to move.

3. The housing assembly according to claim 2, It is characterized in that The first hinge further comprises a first mounting member, the first mounting member is fixedly connected to the second housing, the lever and the bracket are both arranged on the first mounting member, the lever is rotatably connected to the first mounting member, one end of the lever adjacent to the bracket is slidably connected to the bracket, and the bracket is slidably connected to the first mounting member; When the first shell opens a critical angle relative to the second shell, the driving rod is used to drive the lever to rotate relative to the first mounting member and slide relative to the bracket, and the lever is used to drive the bracket to slide relative to the first mounting member.

4. The housing assembly according to claim 3, It is characterized in that The lever has a sliding portion at one end adjacent to the bracket, the bracket is provided with a sliding cavity, the sliding portion is located in the sliding cavity and is in sliding contact with the inner wall of the sliding cavity.

5. The housing assembly according to claim 3 or 4, It is characterized in that The first mounting member has a second convex bump; the driving rod includes a first layer and a second layer, the first layer and the second layer have a step difference, the first layer has a cam surface, the cam surface contacts the second convex bump, and the concave surface is the surface of the second layer; the first hinge includes a first elastic member, one end of the first elastic member is connected to the first mounting member, and the other end of the first elastic member is connected to the bracket; In the folded state, the cam surface contacts the root of one side of the second convex bump; in the process of the first shell opening a critical angle relative to the second shell, the driving rod is used to move relative to the first mounting member, the cam surface is used to move from the root of one side of the second convex bump to the top of the second convex bump, and the first elastic member is used to generate compression deformation; When the critical angle is reached and the first shell continues to open relative to the second shell, the cam surface is used to move from the top of the second convex hump to the root of the other side of the second convex hump, the concave surface is separated from the first convex hump, and the first elastic member is used to restore the deformation and push the bracket to slide back to the initial position relative to the first mounting member.

6. The housing assembly according to claim 5, It is characterized in that The first hinge further comprises a main shaft and a rotating arm, the first mounting member is rotatably connected to the main shaft, the rotating arm is rotatably connected to the main shaft and is slidably connected to the first mounting member; the driving rod is mounted on the rotating arm; During the rotation of the first shell relative to the second shell, the first shell is used to rotate relative to the main shaft, the first mounting member and the rotating arm are both used to rotate around the main shaft, and the rotating arm is also used to slide relative to the first mounting member and drive the driving rod to move relative to the first mounting member.

7. The housing assembly according to claim 6, It is characterized in that The first hinge further includes a second elastic member, one end of the second elastic member is connected to the rotating arm, and the other end of the second elastic member is connected to the driving rod.

8. The housing assembly according to claim 6 or 7, It is characterized in that The first hinge also includes a second mounting member, which is rotatably connected to the main shaft and fixedly connected to the first shell.

9. The housing assembly according to any one of claims 1 to 8, It is characterized in that The shell assembly also includes a second hinge, which is located on opposite sides of the second shell with the first hinge. The second hinge is connected to both the third shell and the second shell, and the second hinge is used to generate mechanical movement so that the third shell rotates relative to the second shell.

10. A folding screen device, It is characterized in that It comprises a flexible screen and a shell assembly according to any one of claims 1 to 9, wherein the flexible screen is fixed to the shell assembly and covers the first shell, the first hinge, the second shell and the third shell.

11. The folding screen device according to claim 10, It is characterized in that In the folded state, a portion of the flexible screen covering the first shell is located on the outside of the first shell, and a portion of the flexible screen covering the third shell is located on the inside of the third shell.

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