Foldable screen devices and hinge components

Abstract

This application provides a foldable screen device and a hinge assembly. By setting an elastic component on the support member, the first end of the elastic component abuts against the main shaft mechanism when the rotating mechanism rotates to the flattened state, and the second end of the elastic component is connected to the support member. The elastic component is in a compressed state when the rotating mechanism rotates to the flattened state, so that the elastic component generates elastic force. When the user releases or reduces the force on the structural component on one side of the support member in the flattening direction, the second end of the elastic component can drive the support member to move away from the main shaft mechanism. The flexible screen then flattens away from the main shaft mechanism under the action of the support member and the structural component. This avoids the situation where the flexible screen arches at the connection between the rotating mechanism and the main shaft mechanism when the hinge assembly is in the flattened state, ensuring the flatness of the flexible screen of the foldable screen device in the flattened state, improving the display performance of the foldable screen device, and also increasing the service life of the flexible screen.

Description

Technical Field

[0001] This application relates to the field of terminal technology, and in particular to a foldable screen device and a hinge assembly. Background Technology

[0002] With the continuous development of mobile devices such as smartphones, users' demand for large-screen phones is becoming increasingly strong. Furthermore, with the development of flexible screen technology, foldable screen devices based on flexible screens, such as foldable phones, have become emerging products in the industry. Among these, to meet the diverse needs of different users, various foldable phones with inward and outward screen folding designs have emerged.

[0003] Currently, foldable screen devices, such as foldable phones, generally include a flexible screen, a hinge assembly, and two structural components. These two structural components are connected by the hinge assembly, and the flexible screen is bonded to the hinge assembly and the inner surfaces of the two structural components. The hinge assembly includes a main shaft mechanism and rotating mechanisms located on either side of the main shaft mechanism. One end of each rotating mechanism is connected to a corresponding structural component, and the other end is rotatably connected to the main shaft mechanism. This allows the rotating mechanisms to drive the corresponding structural components to rotate, enabling the two structural components to arbitrarily switch the flexible screen between a flattened and folded state.

[0004] However, when the hinge assembly rotates to the flattened state, the flexible screen located on the hinge assembly is prone to arching at the connection between the rotation mechanism and the main shaft mechanism, thus affecting the flatness of the flexible screen of the foldable screen device in the flattened state. Summary of the Invention

[0005] This application provides a folding screen device and a hinge assembly, which can solve the problem of the flexible screen arching at the connection between the rotating mechanism and the main shaft mechanism when the hinge assembly is in the flattened state, thereby ensuring the flatness of the flexible screen of the folding screen device in the flattened state.

[0006] This application provides a foldable screen device, including a flexible screen, two structural members, and a hinge assembly located between the two structural members. The flexible screen is located on the same side surface of the two structural members and the hinge assembly.

[0007] The hinge assembly includes a main shaft mechanism and two rotating mechanisms located on both sides of the main shaft mechanism and rotatably connected to the main shaft mechanism; each rotating mechanism includes a support member, the first end of which is rotatable around the main shaft mechanism, the second end of which is connected to a corresponding structural member, and a portion of the flexible screen is connected to one side surface of the support member.

[0008] The support component is equipped with an elastic element. The first end of the elastic element is used to abut against the main shaft mechanism when the rotating mechanism rotates to the flattened state. The second end of the elastic element is connected to the support component. The compression of the elastic element when the rotating mechanism rotates to the flattened state is greater than the compression when the rotating mechanism rotates to the folded state. In this way, the elastic element generates elastic force when the rotating mechanism rotates to the flattened state. When the user releases or reduces the force on the structural component on one side of the support component in the flattening direction, the second end of the elastic element can drive the support component to move away from the main shaft mechanism. This directly drives the flexible screen on the support component to flatten away from the main shaft mechanism. In addition, the structural component at the second end of the support component also moves away from the main shaft mechanism under the action of the support component, causing the flexible screen on the structural component to flatten away from the main shaft mechanism. This avoids the flexible screen from arching at the connection between the rotating mechanism and the main shaft mechanism when the hinge assembly is in the flattened state, ensuring the flatness of the flexible screen in the flattened state of the foldable screen device, improving the display performance of the foldable screen device, and also increasing the service life of the flexible screen.

[0009] In one alternative implementation, the support has a mounting channel with a first opening on the side of the mounting channel facing the spindle mechanism;

[0010] At least a portion of the elastic component is housed within the mounting channel, with the second end of the elastic component abutting against the inner wall of the mounting channel, and the first end of the elastic component abutting against the spindle mechanism through the first opening.

[0011] This application embodiment improves the structural stability of the elastic component on the support by setting an installation channel on the support and housing at least a portion of the elastic component within the installation channel, thereby making the drive of the elastic component on the support more reliable.

[0012] In one alternative implementation, the elastic component includes an elastic element and a pusher block;

[0013] The elastic component includes an elastic element and a pusher block;

[0014] The first end of the pusher extends outside the first opening and cooperates with the main shaft mechanism. The second end of the pusher abuts against the first end of the elastic component, and the second end of the elastic component abuts against the inner wall of the mounting channel. Thus, when the rotating mechanism rotates to the flattened state, the main shaft mechanism will squeeze the pusher, causing the elastic component to be in a compressed state. When the force on the other end of the support is less than the elastic force of the elastic component, the support can move away from the main shaft mechanism under the action of the elastic force, thereby flattening the flexible screen.

[0015] In one alternative implementation, the spindle mechanism has a support portion located on the side wall of the spindle mechanism facing the push block;

[0016] When the support rotates to the flattened state, at least a portion of the surface of the first end of the push block is supported on the support portion. This ensures that the push block can stably abut against the side wall of the main spindle mechanism when it is squeezed by the main spindle mechanism, without sliding down (towards the flexible screen) along the side wall of the main spindle mechanism. This ensures that the support moves along the flattening direction of the hinge assembly under the drive of the push block and the elastic element.

[0017] In one alternative implementation, the support portion includes a free end and a constraint end disposed opposite each other along an axis perpendicular to the main spindle mechanism;

[0018] The constrained end is close to the axis of the main spindle mechanism, and the free end is far from the axis of the main spindle mechanism. The distance between the free end and the outer surface of the main spindle mechanism is less than the distance between the constrained end and the outer surface of the main spindle mechanism.

[0019] In this embodiment, the distance between the free end of the support portion and the outer surface of the main spindle mechanism is set to be greater than the distance between the constraint end and the outer surface of the main spindle mechanism, i.e., the free end of the support portion is lower than the constraint end, so that the support portion is inclined toward the push block. In this way, when the first end of the push block is supported on the support portion, the support portion will have a component force on the push block in the flattening direction, thereby increasing the force of the main spindle mechanism on the push block in the flattening direction, ensuring that the elastic force generated after the elastic element is compressed can stably drive the support member away from the main spindle mechanism.

[0020] In one alternative implementation, at least a portion of the surface of the support facing the push block is an arc-shaped surface, and at least a portion of the surface of the first end of the push block is an arc-shaped surface that mates with the arc-shaped surface, so that the first end of the push block can avoid the support well during rotation without affecting the stability of the push block in the installation channel.

[0021] In one alternative implementation, the spindle mechanism also has a reinforcing part on the side wall facing the push block, and the constraint end of the supporting part is connected to the reinforcing part;

[0022] The surface of the first end of the push block mates with the reinforcing part.

[0023] This application embodiment improves the mechanical strength of the spindle mechanism sidewall by providing a reinforcing part on the sidewall of the spindle mechanism facing the push block, ensuring that the sidewall of the spindle mechanism will not be damaged during long-term contact with the first end of the push block, thus extending the service life of the spindle mechanism.

[0024] In one alternative implementation, the push block has a support portion located on the side of the push block facing the flexible screen;

[0025] The support is resting on the surface of the support component.

[0026] This embodiment of the application provides a support portion on the side of the push block facing the flexible screen and supports the support portion on the support member. This allows the first end of the push block to move along the surface of the support member when it is squeezed by the main shaft mechanism. In particular, when a part of the first end of the push block is supported on the support portion of the main shaft mechanism, the push block moves stably along the surface of the support member through the support portion. This ensures that the push block moves stably in the flattening direction without vertical displacement, allowing the elastic member to be compressed to a greater extent and driving the support member to move away from the main shaft mechanism.

[0027] In one alternative implementation, the support has a groove, at least a portion of which is located between the first opening and the spindle mechanism;

[0028] The support is slidably installed in the slide groove.

[0029] In this embodiment, the support part is slidably placed in a groove provided on the support member, which restricts the movement path of the support part on the support member and ensures that the support part moves stably in the flattening direction. This ensures that the push block can compress the elastic member in the flattening direction and that the elastic force generated after the elastic member is compressed can stably drive the support member to move.

[0030] In one alternative implementation, the push block includes a main body and at least one connecting part;

[0031] One end of the main body is connected to the connecting part, and the other end of the main body is engaged with the main shaft mechanism. The support part of the push block is located on the main body, and at least part of the elastic element is sleeved on the connecting part to improve the stability of the elastic element on the push block, so that the elastic element can be stably compressed or extended along the connecting part.

[0032] In one alternative implementation, the inner wall of the mounting channel has a stop portion, and the second end of the elastic member abuts against the side of the stop portion facing the first opening;

[0033] The mounting channel has a second opening at the end opposite to the main spindle mechanism, and the connecting part is movably inserted into the second opening.

[0034] In this embodiment, the second end of the elastic element abuts against the stop portion within the mounting channel, thereby improving the abutment stability of the second end of the elastic element on the support member. Furthermore, by providing a second opening at the end of the mounting channel facing away from the main shaft mechanism, the connecting portion is allowed to move freely within the second opening. This ensures, on the one hand, that the push block can move freely within the mounting channel under the compression of the main shaft mechanism; on the other hand, it allows the elastic element to be fitted onto the connecting portion to a greater extent, thus ensuring stable compression or extension of the elastic element in the direction of the push block's movement.

[0035] In one alternative implementation, the abutment is arranged circumferentially along the mounting channel, and the end of the abutment facing away from the inner wall of the mounting channel forms a second opening, thereby simplifying the manufacturing process of the second opening and improving the manufacturing efficiency of the support.

[0036] In one alternative implementation, the resilient component also includes positioning elements;

[0037] The positioning element is sleeved on the end of the connecting part facing away from the main body. At least part of the elastic element is located between the main body and the positioning element. The positioning element is located on the side of the blocking part facing away from the first opening to ensure that the push block will not detach from the installation channel from the first opening in any state, thus ensuring the stability of the push block in the installation channel.

[0038] In one alternative implementation, there are two connecting parts, with at least two connecting parts spaced apart at one end of the main body.

[0039] There are two elastic elements, each of which is fitted onto the corresponding connecting part.

[0040] In this embodiment, two connecting parts are spaced apart at one end of the main body, and an elastic element is sleeved on each connecting part. This allows the main body to compress the two elastic elements simultaneously, thereby ensuring that the support member moves stably along the elastic force direction under the action of the two elastic elements, and thus pushing the support member to move stably in the flattening direction.

[0041] In one alternative implementation, the mounting channel has an isolation section that divides the mounting channel into two sub-channels;

[0042] Two sub-channels are arranged side by side along the axis parallel to the main shaft mechanism. At least a portion of the two connecting parts are respectively arranged in the corresponding sub-channels to further ensure that each connecting part and the elastic element on the connecting part moves stably along the corresponding sub-channel. On the one hand, this avoids the left and right offset of each connecting part in the direction perpendicular to the flattening direction. On the other hand, it avoids interference between the two connecting parts and the elastic elements on the two connecting parts during movement.

[0043] In one alternative implementation, each rotating mechanism also includes multiple swing arms;

[0044] The first end of each swing arm is rotatably connected to the main shaft mechanism, and the second end of each swing arm is connected to the corresponding structural component. All swing arms and elastic components are located on the same side of the support component, and each swing arm is connected to the support component. In addition, the position where the first end of the swing arm is rotatably engaged with the main shaft mechanism has a moving gap, so that when the support component moves away from the main shaft mechanism, it drives the swing arm to move away from the main shaft mechanism, thereby driving the structural component at one end of the swing arm to move away from the main shaft mechanism, further ensuring that the flexible screen flattens under the drive of the structural component and the rotating mechanism.

[0045] In one alternative implementation, each rotating mechanism further includes multiple housing links, all of which are located on the support, and the multiple housing links are configured in a one-to-one correspondence with multiple swing arms;

[0046] The second end of the swing arm is rotatably connected to the housing link. Each housing link is connected to the support member so that when the support member moves away from the main shaft mechanism, it drives the housing link to move away from the main shaft mechanism. In addition, the housing link is connected to the corresponding structural member so that when the rotating mechanism rotates to the flattened state, the housing link drives the structural member to move away from the main shaft mechanism, ensuring that the flexible screen is flattened.

[0047] This application embodiment also provides a hinge assembly, including a main shaft mechanism and two rotating mechanisms located on both sides of the main shaft mechanism and rotatably connected to the main shaft mechanism; each rotating mechanism includes a support member, the first end of the support member can rotate around the main shaft mechanism, the second end of the support member is connected to the structural component of the foldable screen device, and a portion of the flexible screen is connected to one side surface of the support member;

[0048] The support component is equipped with an elastic element. The first end of the elastic element is used to abut against the main shaft mechanism when the rotating mechanism rotates to the flattened state. The second end of the elastic element is connected to the support component. The compression of the elastic element when the rotating mechanism rotates to the flattened state is greater than the compression when the rotating mechanism rotates to the folded state. In this way, the elastic element generates elastic force when the rotating mechanism rotates to the flattened state. When the user releases or reduces the force on the structural component on one side of the support component in the flattening direction, the second end of the elastic element can drive the support component to move away from the main shaft mechanism. This directly drives the flexible screen on the support component to flatten away from the main shaft mechanism. In addition, the structural component at the second end of the support component also moves away from the main shaft mechanism under the action of the support component, causing the flexible screen on the structural component to flatten away from the main shaft mechanism. This avoids the flexible screen from arching at the connection between the rotating mechanism and the main shaft mechanism when the hinge component is in the flattened state, ensuring the flatness of the flexible screen of the foldable screen device in the flattened state. Attached Figure Description

[0049] Figure 1 This is a schematic diagram of the structure of a foldable screen device in a flattened state according to an embodiment of this application;

[0050] Figure 2 This is a schematic diagram of a foldable screen device in a semi-folded state according to an embodiment of this application;

[0051] Figure 3 This is a schematic diagram of a foldable screen device in a folded state according to an embodiment of this application;

[0052] Figure 4 This is an exploded structural diagram of a foldable screen device provided in an embodiment of this application;

[0053] Figure 5 This is a schematic diagram of the hinge assembly in a foldable screen device provided in an embodiment of this application when it is in a flattened state;

[0054] Figure 6 This is a side view of the hinge assembly in a foldable screen device provided in an embodiment of this application, showing the switching between a flattened state and a folded state;

[0055] Figure 7 This is a partial structural schematic diagram of one of the hinge components in a folding screen device provided in an embodiment of this application when it is in a flattened state;

[0056] Figure 8 This is a partial structural diagram of the hinge assembly in a foldable screen device provided in an embodiment of this application when it is in a semi-folded state;

[0057] Figure 9 This is a partial structural diagram of the hinge assembly in a foldable screen device provided in an embodiment of this application when it is in a folded state;

[0058] Figure 10 yes Figure 7 Exploded view;

[0059] Figure 11 yes Figure 7 Cross-sectional view of the middle section structure;

[0060] Figure 12 yes Figure 11 A magnified view of a section at point I;

[0061] Figure 13 yes Figure 7 A first-person view structural diagram of the central spindle mechanism;

[0062] Figure 14 yes Figure 7 A structural schematic diagram of the central spindle mechanism from a second perspective;

[0063] Figure 15 yes Figure 7 Exploded view of the elastic component;

[0064] Figure 16 yes Figure 7 Schematic diagram of the central spindle mechanism;

[0065] Figure 17 yes Figure 15 Schematic diagram of the middle pusher block;

[0066] Figure 18 yes Figure 8 Cross-sectional view of the middle section structure;

[0067] Figure 19 yes Figure 9 Cross-sectional view of the middle section structure;

[0068] Figure 20 yes Figure 11 Enlarged view of section II in the middle;

[0069] Figure 21 yes Figure 7 A third-view structural schematic diagram of the central spindle mechanism;

[0070] Figure 22 yes Figure 7 Partial cross-sectional view.

[0071] Explanation of reference numerals in the attached figures:

[0072] 10-Flexible screen; 20-Structural component; 30-Hinge assembly; 40-Battery cover; 10a-Outer screen;

[0073] 11-First display area; 12-Second display area; 13-Third display area; 21-First structural component; 22-Second structural component; 31-Main spindle mechanism; 32-Rotating mechanism; 32a-Connecting component; 33-Elastic component;

[0074] 211-First metal middle plate; 212-First frame; 221-Second metal middle plate; 222-Second frame; 31a-Second main surface; 311-Supporting part; 312-Reinforcing part; 321-Supporting member; 322-Swing arm; 323-Housing connecting rod; 324-Mounting channel; 331-Elastic member; 332-Push block; 333-Positioning member;

[0075] 311a - Supporting surface; 321a - Mounting part; 321b - Blocking part; 321c - Isolating part; 3211 - First surface; 3212 - Second surface; 3213 - Slide groove; 324a - First opening; 324b - Second opening; 3241 - First sub-channel; 3242 - Second sub-channel; 332a - Supporting part; 3321 - Main body part; 3322 - Connecting part;

[0076] 3212a - First main surface; 3212b - Mounting surface; 3213a - First slide groove; 3213b - Second slide groove; 3322a - First connecting part; 3322b - Second connecting part; 3322c - Mounting groove. Detailed Implementation

[0077] The terminology used in the implementation section of this application is for the purpose of explaining specific embodiments of this application only, and is not intended to limit this application.

[0078] This application provides a foldable screen device. It is understood that the foldable screen device provided in this application may include, but is not limited to, foldable fixed terminals or mobile terminals such as mobile phones, tablets, laptops, ultra-mobile personal computers (UMPCs), handheld computers, touch TVs, walkie-talkies, netbooks, POS machines, personal digital assistants (PDAs), wearable devices, and virtual reality devices.

[0079] Figure 1 This is a schematic diagram of a foldable screen device in a flattened state according to an embodiment of this application. Figure 2 This is a schematic diagram of a foldable screen device in a semi-folded state according to an embodiment of this application. Figure 3 This is a schematic diagram of a foldable screen device in a folded state according to an embodiment of this application. See also... Figures 1 to 3 As shown, this application uses a foldable screen phone as an example to illustrate the structure of a foldable screen device. The foldable screen phone can be a foldable phone with an inward-folding screen; however, in some examples, it can also be a foldable phone with an outward-folding screen.

[0080] See Figure 1 As shown, the foldable screen phone may include at least two structural members 20 and a hinge assembly 30 located between the two structural members 20. The two structural members 20 may be a first structural member 21 and a second structural member 22, respectively located on opposite sides of the hinge assembly 30, and both structural members 21 and 22 are fixedly connected to the hinge assembly 30. The first structural member 21 and the second structural member 22 are respectively connected to the connecting member 32a of the hinge assembly 30 (see...). Figure 5 (As shown) are fixedly connected.

[0081] It should be noted that the first structural component 21 and the second structural component 22 can be fixedly connected to the connector 32a by welding, bonding or screw fastening, respectively.

[0082] Reference Figure 1 As shown, the first structural member 21 and the second structural member 22 can be unfolded relative to each other to an open state (also known as a flattened state) so that the foldable screen phone is in an open state (also known as a flattened state). For example, when the first structural member 21 and the second structural member 22 are in the flattened state, they can be approximately 180° apart (a slight deviation is also allowed, such as 165°, 177° or 185°).

[0083] like Figure 3As shown, the first structural member 21 and the second structural member 22 can be folded relative to each other to a closed state (also known as a folded state) so that the foldable screen phone is in a folded state. For example, when the first structural member 21 and the second structural member 22 are in the folded state, they can be completely closed to be parallel to each other (a slight deviation is also allowed).

[0084] in, Figure 2 The intermediate state shown (also known as the semi-folded state) can be any state between the flattened state and the folded state. Therefore, the foldable screen phone can switch between the flattened state and the folded state through the movement of the hinge component 30.

[0085] It should be noted that the number of the first structural component 21 and the second structural component 22 can both be one, allowing the foldable screen phone to be folded into two layers, for example, as shown below. Figure 1 As shown, a foldable screen phone may include a first structural member 21, a second structural member 22, and a hinge assembly 30 for connecting the first structural member 21 and the second structural member 22. The first structural member 21 and the second structural member 22 rotate relative to each other to overlap, so that the foldable screen device has a two-layer form.

[0086] Alternatively, there can be multiple first structural members 21 and second structural members 22. Adjacent first structural members 21 and second structural members 22 are connected by hinge assemblies 30, allowing the foldable screen device to be folded into multiple layers. For example, the foldable screen device may include two second structural members 22, one first structural member 21, and two hinge assemblies 30. The two second structural members 22 are located on both sides of the first structural member 21 and are rotatably connected to the first structural member 21 through hinge assemblies 30. One of the second structural members 22 can rotate relative to the first structural member 21 to overlap, and the other second structural member 22 can also rotate relative to the first structural member 21 to overlap, so that the foldable screen device presents a three-layer folded form. When two of the first structural members 21 and second structural members 22 rotate to the same plane, the foldable screen device is in a flattened state.

[0087] See Figure 1 As shown, in practical applications, foldable screen devices may further include a foldable flexible screen 10, wherein the flexible screen 10 is disposed on the same side surface of the hinge assembly 30, the first structural member 21, and the second structural member 22. When the first structural member 21 and the second structural member 22 are folded, the flexible screen 10 bends and adheres between the first structural member 21 and the second structural member 22; when the first structural member 21 and the second structural member 22 are unfolded, the flexible screen 10 also unfolds accordingly. Specifically, for foldable phones with inward-folding screens, the flexible screen 10 is disposed on the inner surface of the hinge assembly 30, the first structural member 21, and the second structural member 22. For foldable phones with outward-folding screens, the flexible screen 10 is disposed on the outer surface of the hinge assembly 30, the first structural member 21, and the second structural member 22.

[0088] It should be noted that the inner surfaces of the hinge assembly 30, the first structural member 21, and the second structural member 22 refer to the surfaces of the hinge assembly 30, the first structural member 21, and the second structural member 22 facing the folding direction. In other words, when the foldable screen phone is in a folded or semi-folded state, the surfaces of the first structural member 21 and the second structural member 22 that are opposite each other are the inner surfaces. At this time, the surface of the hinge assembly 30 that is on the same side as the inner surfaces of the first structural member 21 and the second structural member 22 is the inner surface of the hinge assembly 30.

[0089] Conversely, the outer surfaces of the hinge assembly 30, the first structural member 21, and the second structural member 22 refer to the surfaces of the hinge assembly 30, the first structural member 21, and the second structural member 22 facing the unfolding direction. In other words, when the foldable screen phone is in a folded or semi-folded state, the surfaces of the first structural member 21 and the second structural member 22 that are opposite to each other are the outer surfaces. At this time, the surface of the hinge assembly 30 that is on the same side as the outer surfaces of the first structural member 21 and the second structural member 22 is the outer surface of the hinge assembly 30.

[0090] In practical applications, the flexible screen 10 can be bonded to the inner surfaces of the hinge assembly 30, the first structural member 21, and the second structural member 22 to ensure that part of the flexible screen 10 is stably covered on the inner surface of the hinge assembly 30, thereby improving the stability of the flexible screen 10 in the folding screen device.

[0091] See Figure 1 As shown, the flexible screen 10 may include: a first display area 11, a second display area 12, and a third display area 13 located between the first display area 11 and the second display area 12. The first display area 11 may be located on the inner surface of the first structural member 21, the second display area 12 may be located on the inner surface of the second structural member 22, and the third display area 13 may be located on the inner surface of the hinge assembly 30.

[0092] Of course, in some embodiments, the foldable screen device can also be a laptop computer, which may include a first structural member 21 and a second structural member 22. The first structural member 21 and the second structural member 22 can rotate towards each other to stack on top of each other, so that the laptop computer is in a folded state. Conversely, from the stacked state, the first structural member 21 and the second structural member 22 can rotate away from each other until they can no longer rotate, so that the laptop computer is in a flattened state. In the flattened state, a portion of the foldable flexible screen 10 on the first structural member 21 can be used for displaying images, etc., while a portion of the foldable flexible screen 10 on the second structural member 22 can serve as a virtual keyboard.

[0093] See Figure 2 and Figure 3As shown, the electronic device may also include an outer screen 10a, and the outer screen 10a and the flexible screen 10 may be located on opposite sides of the first structural member 21 or the second structural member 22, for example, see [reference needed]. Figure 2 As shown, the outer screen 10a is opposite to the second display area 12 of the flexible screen 10, and the outer screen 10a and the second display area 12 of the flexible screen 10 are respectively located on both sides of the second structural member 22. Thus, see... Figure 3 As shown, when the foldable screen device is in the folded state, the outer screen 10a is located on the outer surface of the foldable screen device and can be used independently. Of course, in some examples, the outer screen 10a may not be provided.

[0094] In the embodiments of this application, see Figure 2 As shown, it may also include a battery cover 40, and the battery cover 40 and the first display area 11 of the flexible screen 10 may be located on both sides of the first structural member 21.

[0095] Figure 4 This is an exploded view of a foldable screen device according to an embodiment of this application. See also... Figure 4 As shown, the first structural member 21 and the second structural member 22 can be a mid-frame. The first structural member 21 may include a first metal mid-plate 211 and a first frame 212 surrounding the outer edge of the first metal mid-plate 211. The second structural member 22 may include a second metal mid-plate 221 and a second frame 222 surrounding the outer edge of the second metal mid-plate 221. The hinge assembly 30 is fixedly connected to the first metal mid-plate 211 and the second metal mid-plate 221 respectively.

[0096] Figure 5 This is a schematic diagram of the hinge assembly in a foldable screen device provided in an embodiment of this application when it is in a flattened state. See also... Figure 5 As shown, the hinge assembly 30 includes a main spindle mechanism 31 and two rotating mechanisms 32 located on both sides of the main spindle mechanism 31 and rotatably connected to it. See also... Figure 5 As shown, the two rotating mechanisms 32 can be symmetrically arranged relative to the main shaft mechanism 31. The two rotating mechanisms 32 can move along... Figure 5 The two dashed arrows in the diagram rotate relative to the main spindle mechanism 31.

[0097] Figure 6 This is a side view of the hinge assembly in a foldable screen device according to an embodiment of this application, showing the switching between a flattened state and a folded state. For example, see... Figure 6 As shown, when the two rotating mechanisms 32 are in the folded state, they can face each other. When the two rotating mechanisms 32 are in the flattened state, they are back-to-back with respect to the main spindle mechanism 31. In other words, both the two rotating mechanisms 32 and the main spindle mechanism 31 are in the flattened direction (see...). Figure 6 (The direction indicated by the middle arrow a).

[0098] It should be noted that the flattening direction refers to the width direction of the hinge assembly 30 when the rotating mechanism 32 is rotated to the flattened state.

[0099] Reference Figure 4 and Figure 5 As shown, during specific assembly, the end of the rotating mechanism 32 facing away from the main shaft mechanism 31 is connected to the corresponding structural component 20. For example, one rotating mechanism 32 is connected to the first structural component 21 through the connector 32a, and the other rotating mechanism 32 is connected to the second structural component 22 through the connector 32a. In this way, the two rotating mechanisms 32 can respectively drive the first structural component 21 and the second structural component 22 to fold or unfold, so that the flexible screen 10 on the surface of the two structural components 20 and the hinge assembly 30a can switch arbitrarily between the flattened state and the folded state.

[0100] See Figure 6 As shown, since there is a displacement difference between the rotating mechanism 32 and the main shaft mechanism 31 (i.e., the bending area of ​​the hinge assembly 30) in the folded and flattened states, after the flexible screen 10 is bent for a long time, the flexible screen 10 at the connection between the rotating mechanism 32 and the main shaft mechanism 31 is prone to bulging and other wrinkles when the hinge assembly 30 is in the flattened state, thus affecting the flatness of the flexible screen 10 of the folding screen device in the flattened state.

[0101] Therefore, the hinge assembly 30 provided in this application embodiment provides an elastic component 33 on the support member 321 of the rotating mechanism 32. The first end of the elastic component 33 abuts against the main shaft mechanism 31 when the rotating mechanism is rotated to the flattened state, and the second end of the elastic component 33 is connected to the support member 321. Furthermore, the compression amount of the elastic component 33 when the rotating mechanism 32 is rotated to the flattened state is greater than the compression amount when the rotating mechanism 32 is rotated to the folded state. Thus, when the rotating mechanism 32 is rotated to the flattened state, the elastic component 33 generates elastic force, and when the user releases or reduces pressure on the support member 321... When the structural component 20 is subjected to a force in the flattening direction, the second end of the elastic component 33 can drive the support component 321 to move away from the main shaft mechanism 31. In this way, the support component 321 can directly drive the flexible screen 10 on one side to flatten away from the main shaft mechanism 31, thereby avoiding the situation where the flexible screen 10 arches at the connection between the rotating mechanism 32 and the main shaft mechanism 31 when the hinge component 30 is in the flattened state. This ensures the flatness of the flexible screen 10 of the folding screen device in the flattened state, improves the display performance of the folding screen device, and also increases the service life of the flexible screen 10. The specific structure of the hinge component 30 of the embodiment of this application will be described below.

[0102] Figure 7 This is a partial structural diagram of one of the hinge components in a folding screen device provided in an embodiment of this application when it is in a flattened state. Figure 8This is a partial structural diagram of the hinge assembly in a foldable screen device provided in one embodiment of this application when it is in a semi-folded state. Figure 9 This is a partial structural diagram of the hinge assembly in a foldable screen device provided in an embodiment of this application when it is in a folded state.

[0103] See Figure 7 As shown, in the hinge assembly 30 provided in this application embodiment, each rotating mechanism 32 includes a support member 321, and the first end of the support member 321 (see...) Figure 7 (As shown in e) can rotate around the main shaft mechanism 31, and the second end of the support member 321 (see...) Figure 7 (as shown in f) is connected to the corresponding structural member 20. For example, the first end e of the support member 321 of one of the rotating mechanisms 32 rotates about the main shaft mechanism 31, and the second end f of the support member 321 is connected to the first structural member 21 (see f). Figure 4 (as shown) connected; the first end e of the support member 321 of another rotating mechanism 32 rotates about the main shaft mechanism 31, and the second end f of the support member 321 is connected to the second structural member 22 (see...). Figure 4 (As shown) connection.

[0104] In practical applications, the support member 321 can also be referred to as a door panel. It can be understood that a portion of the flexible screen 10 (see reference) is provided on one side of the support member 321. Figure 7 (As shown). For example, the third display area 13 is located on the inner surface of the support member 321 and the spindle mechanism 31. It should be noted that the inner surface of the support member 321 refers to the support member 321 facing the folding direction (see...). Figure 7 The surface in the direction indicated by arrow b.

[0105] Reference Figure 7 As shown, the support member 321 includes a first surface 3211 and a second surface 3212 disposed opposite to each other. The first surface 3211 is the inner surface of the support member 321, and the second surface 3212 is the outer surface of the support member 321. A portion of the flexible screen 10 (e.g., the third display area 13) is connected to the first surface 3211 (e.g., by adhesive bonding).

[0106] See Figure 7 As shown, one support member 321 is located to the left of the axis l of the main spindle mechanism 31 (not shown), and the other support member 321 is located to the right of the axis l of the main spindle mechanism 31, and the first end e of each support member 321 can rotate about the main spindle mechanism 31. The two support members 321 can rotate about the main spindle mechanism 31 along... Figure 7 Rotate in opposite directions as indicated by the middle arrow b to fold relative to the main shaft mechanism 31, as shown below. Figure 9 As shown, until the hinge assembly 30 is in a folded state.

[0107] When the support member 321 rotates around the main shaft mechanism 31 along Figure 9 Rotate in the direction indicated by the middle arrow c until the support member 321 is in a flattened position relative to the main shaft mechanism 31, as shown. Figure 7 As shown, the hinge assembly 30 is in a flattened state, wherein, Figure 8 The hinge assembly 30 shown is in a state between flattened and folded, i.e., a semi-folded state.

[0108] The second end f of the support member 321 of the rotating mechanism 32 is connected to the corresponding structural member 20. In this way, each support member 321 can drive the corresponding structural member 20 to rotate during rotation. For example, the support member 321 on one side of the main shaft mechanism 31 drives the first structural member 21 to rotate, and the support member 321 on the other side of the main shaft mechanism 31 drives the second structural member 22 to rotate. Thus, when the support members 321 on both sides rotate toward each other around the main shaft mechanism 31, the first structural member 21 and the second structural member 22 also rotate toward each other until the inner surfaces of the support members 321 on both sides are opposite each other. At this time, the hinge assembly 30 drives the first structural member 21 and the second structural member 22 to be in a folded state, thereby causing the hinge assembly 30 and the flexible screen 10 on the two structural members 20 to bend into a folded state.

[0109] When the support members 321 on both sides rotate in opposite directions around the main shaft mechanism 31, the first structural member 21 and the second structural member 22 also rotate in opposite directions until the support members 321 on both sides are in the flattened direction. Then the hinge assembly 30 drives the first structural member 21 and the second structural member 22 to also be in the flattened state, so that the hinge assembly 30 and the flexible screen 10 on the two structural members 20 are also unfolded to the flattened state.

[0110] It should be noted that the second end f of the support member 321 of the rotating mechanism 32 can be directly connected to the corresponding structural member 20 or indirectly connected. For example, the second end f of the support member 321 can be connected to the structural member 20 through the housing connecting rod 323. This application embodiment does not specifically limit the connection method between the support member 321 and the corresponding structural member 20, as long as it ensures that the support member 321 can drive the connected structural member 20 to rotate during rotation.

[0111] Figure 10 yes Figure 7 Explosion diagram, Figure 11 yes Figure 7 Cross-sectional view of the middle section of the structure. See also Figure 10 As shown, the hinge assembly 30 also includes an elastic component 33, which is disposed on the support member 321 (see Figure 1). Figure 7 and Figure 11(As shown). The elastic component 33 and the flexible screen 10 are respectively disposed on opposite sides of the support member 321. For example, a portion of the flexible screen 10 is disposed on the first surface 3211 (i.e., the inner surface) of the support member 321, and the elastic component 33 is disposed on the second surface 3212 (i.e., the outer surface) of the support member 321 (see...). Figure 11 (As shown).

[0112] See Figure 11 As shown, the first end of the elastic component 33 is used to abut against the main shaft mechanism 31 when the rotating mechanism 32 is rotated to the flattened state. For example, the first end of the elastic component 33 abuts against the side wall of the main shaft mechanism 31, the second end of the elastic component 33 is connected to the support member 321, and the elastic component 33 is in a compressed state when the rotating mechanism 32 is rotated to the flattened state.

[0113] In this embodiment, the first end of the elastic component 33 abuts against the side wall of the main shaft mechanism 31 when the rotating mechanism 32 is rotated to the flattened state. In some examples, the rotating mechanism 32 is in a semi-folded state (see...). Figure 8 (as shown) or folded state (see...) Figure 9 When the first end of the elastic component 33 is in the folded or semi-folded state, there is no interference between the first end of the elastic component 33 and the side wall of the main shaft mechanism 31. That is, the elastic component 33 is in a natural state when the rotating mechanism 32 is in the folded or semi-folded state and does not generate force with the support member 321.

[0114] In actual design, due to tolerance considerations, in some examples, the rotating mechanism 32 is in a semi-folded state (see...). Figure 8 (as shown) or folded state (see...) Figure 9 When the first end of the elastic component 33 interferes with the side wall of the main shaft mechanism 31 (as shown), the main shaft mechanism 31 will exert pressure on the elastic component 33, causing the elastic component 33 to be in a compressed state.

[0115] It should be noted that in this embodiment, the compression amount of the elastic component 33 when the rotating mechanism 32 rotates to the flattened state must be greater than the compression amount of the elastic component 33 when the rotating mechanism 32 rotates to the folded state. This ensures that when the rotating mechanism 32 rotates to the flattened state, the elastic force generated by the compression of the elastic component 33 can push the support member 321 to flatten the flexible screen 10.

[0116] It is understood that when the rotating mechanism 32 rotates to the flattened state, the main shaft mechanism 31 abuts against the first end of the elastic component 33, so that the first end of the elastic component 33 has pressure in the direction of the second end of the elastic component 33, so that the elastic component 33 is in a compressed state. In this way, the elastic component 33 can generate elastic force, and when the user releases or reduces the force on the structural member 20 on the side of the support member 321 in the flattening direction, the second end of the elastic component 33 can drive the support member 321 to move away from the main shaft mechanism 31, so that the flexible screen 10 is flattened.

[0117] In this embodiment, the second end of the elastic component 33 is connected to the support member 321, so that the support member 321 stops the second end of the elastic component 33. Exemplarily, the second end of the elastic component 33 can be directly fixedly connected to the support member 321; for example, the second end of the elastic component 33 can be glued, welded, or snapped onto the support member 321. Of course, in some examples, the second end of the elastic component 33 can also abut against the support member 321; for example, the second end of the elastic component 33 can also be... Figure 20 It abuts against the support member 321 in the manner shown (see the relevant content below for details).

[0118] It should be noted that the first end and the second end of the elastic component 33 refer to the two ends of the elastic component 33 that are arranged opposite to each other along the extension and contraction direction. Specifically, the first end of the elastic component 33 refers to the end that cooperates with the main shaft mechanism 31, and the second end of the elastic component 33 refers to the end that is connected to the support member 321.

[0119] It is understood that the elastic component 33 is movably mounted on the support member 321. For example, the first end of the elastic component 33 is in a free state, i.e., not connected to the support member 321, to ensure that the elastic component 33 can extend and retract. The direction of extension and retraction of the elastic component 33 can be the same as the direction of flattening (see...). Figure 11 The direction indicated by the middle arrow (a) is consistent with the direction indicated by the middle arrow. This ensures that the elastic component 33 drives the support member 321 to move along the direction of arrow a under the action of elastic force, so that the flexible screen 10 on the inner surface of the support member 321 also moves along the direction of arrow a and eventually flattens out.

[0120] In practical applications, the spindle mechanism 31 includes an inner spindle and an outer spindle. The outer spindle covers the outer surface of the inner spindle. The first end of the elastic component 33 can cooperate with the side wall of the inner spindle so that the inner spindle squeezes the elastic component 33 when the rotating mechanism 32 rotates to the flattened state, thereby causing the second end of the elastic component 33 to drive the support member 321 to move away from the spindle mechanism 31 in the direction of arrow a.

[0121] See Figure 11As shown, taking the elastic component 33 as a compression spring as an example, the second end of the compression spring abuts against the support member 321, making the second end of the compression spring firmly attached to the support member 321. Furthermore, when the rotating mechanism 32, for example, the support member 321, rotates to a flattened state, the first end of the compression spring abuts against the side wall of the main shaft mechanism 31, that is, the first end of the compression spring interferes with the main shaft mechanism 31, causing the main shaft mechanism 31 to exert pressure on the compression spring towards the support member 321. When the compression spring is subjected to pressure from the main shaft mechanism 31, it compresses and generates a spring force, which acts on the support member 321, and the direction of this spring force is consistent with the flattening direction. When the force on the second end of the support member 321 in the flattening direction is less than this spring force, the compression spring drives the support member 321 to move away from the main shaft mechanism 31 along the flattening direction.

[0122] When a user unfolds a foldable screen device from a folded state to a flattened state, for example, when the user rotates the support member 321 to the flattened state via the structural member 20, the user releases or reduces the force exerted on the structural member 20 in the flattening direction. At this time, the elastic component 33, which is in a compressed state, drives the support member 321 to move along... Figure 7 The direction of the middle arrow a moves away from the main spindle mechanism 31, so that the rotating mechanism 32 moves along... Figure 7 The direction of the middle arrow a moves away from the main spindle mechanism 31.

[0123] Based on the degree of arching of the flexible screen 10 when the rotating mechanism 32 rotates to the flattened state, the degree of interference between the first end of the elastic component 33 and the main shaft mechanism 31 in the flattened state can be adjusted, thereby adjusting the compression amount of the elastic component 33. For example, when the degree of arching of the flexible screen 10 when the rotating mechanism 32 rotates to the flattened state is large, when the user rotates the support member 321 to the flattened state through the structural member 20, the support member 321 can be further pressed towards the main shaft mechanism 31 to increase the compression amount of the elastic component 33, thereby increasing the elastic force of the elastic component 33, increasing the driving force of the elastic component 33 on the support member 321, and increasing the compression amount of the support member 321 along the direction of the main shaft mechanism 31. Figure 7 The movement in the direction of the middle arrow a ensures that the flexible screen 10 is flattened.

[0124] Of course, in some examples, to adjust the degree of interference between the first end of the elastic component 33 and the main shaft mechanism 31 in the flattened state, elastic components 33 of different lengths or with different elastic forces can be selected. For example, when the flexible screen 10 has a large arch when the rotating mechanism 32 rotates to the flattened state, a longer elastic component 33 can be selected, so that when the rotating mechanism 32 rotates to the flattened state, the main shaft mechanism 31 has a larger compression amount on the first end of the elastic component 33 in the direction from the second end, thereby increasing the elastic force of the elastic component 33. Alternatively, an elastic component 33 with better elasticity can be selected, so that when the main shaft mechanism 31 abuts against the elastic component 33, the elastic component 33 can maintain a large elastic force under a certain compression state.

[0125] in, Figure 7 and Figure 11 The support member 321 shown is located on the right side of the main spindle mechanism 31, so the support member 321 can move along... Figure 7 The direction of the middle arrow 'a' moves away from the main spindle mechanism 31, while... Figure 7 and Figure 11 The support member 321 on the left side of the spindle mechanism 31 is not shown in the diagram. The support member 321 located on the left side of the spindle mechanism 31 will move along the axis of the spindle mechanism 31. Figure 7 Arrow a moves away from the main spindle mechanism 31 in the opposite direction.

[0126] Reference Figure 7 As shown, because a portion of the flexible screen 10 is connected, for example, bonded to the first surface 3211 of the support member 321, when the elastic component 33 drives the support member 32 along... Figure 7 The direction of the middle arrow a moves away from the main shaft mechanism 31, which can directly drive the flexible screen 10 on the support 32 to flatten away from the main shaft mechanism 31. On the one hand, it ensures the flatness of the flexible screen 10 of the folding screen device in the flattened state. On the other hand, it reduces the loss in the process of the elastic force generated by the elastic component 33 being transmitted to the flexible screen 10, and improves the driving reliability of the elastic component 33 on the flexible screen 10.

[0127] Because the second end of the support member 321 of the rotating mechanism 32 is connected to the corresponding structural member 20, the structural member 20 (e.g., the first structural member 21 and the second structural member 22) will move away from the main shaft mechanism 31 under the drive of the support member 321. In this way, the flexible screen 10 can be flattened away from the main shaft mechanism 31 under the drive of the structural member 20, thereby avoiding the situation where the flexible screen 10 arches at the connection between the rotating mechanism 32 and the main shaft mechanism 31 when the hinge assembly 30 is in the flattened state, thus ensuring the flatness of the flexible screen 10 of the folding screen device in the flattened state.

[0128] See Figure 11As shown, when the hinge assembly 30 is in the flattened state, the support member 321 on one side of the main shaft mechanism 31 moves to the right under the drive of the elastic component 33. Figure 7 The first structural member 21 moves to the right, causing the first display area 11 on the surface of the first structural member 21 to move to the right, thereby pulling the third display area 13 on the hinge assembly 30 and flattening the flexible screen 10 in the right bending area of ​​the main shaft mechanism 31.

[0129] The support member 321 on the other side of the main spindle mechanism 31 moves to the left under the drive of the elastic component 33. Figure 7 The second structural member 22 moves to the left, causing the second display area 12 on the surface of the second structural member 22 to move to the left, thereby pulling the third display area 13 on the hinge assembly 30 and flattening the flexible screen 10 in the left bending area of ​​the hinge assembly 30. (The direction opposite to the middle arrow a)

[0130] In addition, since part of the flexible screen 10, such as the third display area 13, is located on one side surface of the hinge assembly 30, when the elastic component 33 drives the support member 321 to move away from the main shaft mechanism 31, the support member 321 can directly drive the third display area 13 on it to move away from the main shaft mechanism 31, thereby flattening the flexible screen 10, improving the display performance of the folding screen device, and also increasing the service life of the flexible screen 10.

[0131] For example, when the two support members 321 on both sides of the spindle mechanism 31 rotate to the flattened state, the support member 321 on the right side of the spindle mechanism 31 will move to the right under the drive of the elastic component 33 (see...). Figure 7 The direction of the middle arrow (a) moves, that is, the right rotating mechanism 32 moves to the right. The flexible screen 10 located on the inner surface of the rotating mechanism 32 will move to the right under the pull of the rotating mechanism 32, so that the flexible screen 10 between the right rotating mechanism 32 and the main shaft mechanism 31 is flattened.

[0132] Correspondingly, the support member 321 located on the left side of the spindle mechanism 31 will move to the left under the drive of the elastic component 33 (see...). Figure 7 (In the opposite direction indicated by the middle arrow a) the left rotating mechanism 32 moves to the left, and the flexible screen 10 located on the inner surface of the rotating mechanism 32 will move to the left under the pull of the rotating mechanism 32, so that the flexible screen 10 between the left rotating mechanism 32 and the main shaft mechanism 31 is flattened.

[0133] It is understood that the second end of the elastic component 33 can abut against any position on the support member 321. For example, a mounting groove (not shown) can be formed on the support member 321 to house at least a portion of the elastic component 33, with the second end of the elastic component 33 abutting against the inner wall of the mounting groove.

[0134] Figure 12 yes Figure 11 A magnified view of a section at point I. Figure 13 yes Figure 7 A first-person view structural diagram of the central spindle mechanism. Figure 14 yes Figure 7 A structural schematic diagram of the central spindle mechanism from a second-view perspective. (See also...) Figure 13 As shown, in some examples, the support 321 may have a mounting channel 324, and the mounting channel 324 has a first opening 324a on the side facing the spindle mechanism 31 (see...). Figure 14 As shown), in other words, the mounting channel 324 penetrates the side surface of the support 321 facing the spindle mechanism 31, so that the first end of the elastic component 33 can extend out of the mounting channel 324 (as shown). Figure 12 (as shown), and interferes with the side wall of the spindle mechanism 31, or, a part of the spindle mechanism 31 can extend into the mounting channel 324 through the first opening 324a and interfere with the second end of the elastic component 33.

[0135] In specific installations, the mounting channel 324 can be a through hole directly formed within the support member 321. This means the through hole is located between the inner and outer surfaces of the support member 321. (Refer to...) Figure 13 As shown, in some examples, the outer surface of the support member 321 may also have a mounting portion 321a, and a mounting channel 324 is formed in the mounting portion 321a to ensure the structural stability of the mounting channel 324.

[0136] It is understood that when the outer surface of the support member 321 has a mounting portion 321a, the outer surface of the support member 321 includes a first main surface 3212a and a mounting surface 3212b (see...). Figure 14 As shown in the figure, the mounting surface 3212b refers to the top surface of the mounting part 321a that faces the same direction as the first main surface 3212a, and the mounting surface 3212b is higher than the first main surface 3212a.

[0137] See Figure 11 As shown, at least a portion of the elastic component 33 is housed within the mounting channel 324, with the second end of the elastic component 33 abutting against the inner wall of the mounting channel 324, and the first end of the elastic component 33 abutting against the spindle mechanism 31 through the first opening 324a (see [reference]). Figure 12 (As shown). The elastic component 33 can move freely within the mounting channel 324 to ensure that the elastic component 33 can be compressed and stretched normally.

[0138] See Figure 11 and Figure 12As shown, continuing with the example of a compression spring, the second end of the compression spring can abut against the inner wall of the mounting channel 324, and the first end of the compression spring can extend from the first opening 324a to the outside of the mounting channel 324. When the support member 321 rotates to the flattened state, the side wall of the main shaft mechanism 31 abuts against the first end of the compression spring to compress the compression spring. When the force on the second end of the support member 321 in the flattened direction is less than the elastic force of the compression spring at this time, the compression spring extends in the flattened direction and drives the support member 321 to move away from the main shaft mechanism 31 in the flattened direction through the second end of the compression spring.

[0139] In this embodiment of the application, an installation channel 324 is provided on the support member 321, and at least a portion of the elastic component 33 is housed within the installation channel 324, so that the compression and extension of the elastic component 33 are both completed within the installation channel 324.

[0140] The mounting channel 324 restricts the elastic component 33 to the axis parallel to the spindle mechanism 31 (see [reference]). Figure 7 The range of motion in the direction shown in l is increased, and the assembly area between the elastic component 33 and the support 321 is increased, thereby improving the structural stability of the elastic component 33 on the support 321, and making the drive of the elastic component 33 on the support 321 more reliable.

[0141] Figure 15 yes Figure 7 Exploded view of the elastic component. See also Figure 15 As shown, in order to improve the structural stability of the elastic component 33, the elastic component 33 in this embodiment may include an elastic element 331 and a pusher block 332 (see...). Figure 11 and Figure 15 (As shown). The first end of the push block 332 extends beyond the mounting channel 324 and engages with the spindle mechanism 31. For example, a portion of the push block 332 may extend beyond the first opening 324a of the mounting channel 324 and engage with the side wall of the spindle mechanism 31 (see...). Figure 12 (As shown). The second end of the push block 332 abuts against the first end of the elastic member 331, and the second end of the elastic member 331 abuts against the inner wall of the mounting channel 324. In other words, the push block 332 abuts against the inner wall of the mounting channel through the elastic member 331. The elastic member 331 can be a compression spring.

[0142] When the rotating mechanism 32 rotates to the flattened state, the side wall of the main shaft mechanism 31 will press against the push block 332 (see...). Figure 11As shown, the elastic member 331 is in a compressed state. When the force on the second end of the support member 321 is less than the elastic force of the elastic member 331, the elastic member 331 can push the support member 321 away from the main shaft mechanism 31, thereby flattening the flexible screen 10. In addition, by pushing the push block 332 to contact the side wall of the main shaft mechanism 31, the contact area between the elastic component 33 and the main shaft mechanism 31 is increased, so that the main shaft mechanism 31 can stably push the elastic component 33 to move along the flattening direction, further ensuring that the support member 321 moves stably along the flattening direction under the drive of the elastic component 33.

[0143] During setup, the first end of the elastic element 331 can also be connected to the push block 332 to improve the assembly stability between the elastic element 331 and the push block 332.

[0144] Figure 16 yes Figure 7 A schematic diagram of the central spindle mechanism. (See attached diagram.) Figure 16 As shown, in order to improve the contact stability between the spindle mechanism 31 and the push block 332, in some examples, the spindle mechanism 31 may have a support portion 311, which is located on the side wall of the spindle mechanism 31 facing the push block 332 (see...). Figure 12 (As shown). It can be understood that the support portion 311 has a support surface 311a, which faces the outer surface of the spindle mechanism 31 (see...). Figure 16 (as shown in d).

[0145] When the support 321 is rotated to the flattened state, at least a portion of the surface of the first end of the push block 332 is supported on the support portion 311 (see...). Figure 12 As shown), for example, at least a portion of the surface of the first end of the push block 332 is supported on the support surface 311a of the support portion 311. This ensures that the push block 332 can stably abut against the side wall of the main shaft mechanism 31 when it is pressed by the main shaft mechanism 31, without sliding down (towards the flexible screen 10) along the side wall of the main shaft mechanism 31. This ensures that the support member 321 moves along the flattening direction of the hinge assembly 30 under the drive of the push block 332 and the elastic member 331.

[0146] Among them, see Figure 16 As shown, the support portion 311 includes a free end h and a constraint end g disposed opposite each other along the axial direction perpendicular to the spindle mechanism 31. The constraint end g is close to the axis l of the spindle mechanism 31, and the free end h is away from the axis l of the spindle mechanism 31. In other words, the constraint end g of the support portion 311 refers to the end of the support portion 311 connected to the spindle mechanism 31, and the free end h of the support portion 311 refers to the end facing the push block 332 (see...). Figure 12 (As shown).

[0147] In a specific configuration, the distance between the free end h and the outer surface d of the spindle mechanism 31 is greater than the distance between the constraint end g and the outer surface d of the spindle mechanism 31. In other words, with the outer surface d of the spindle mechanism 31 as a reference plane, the free end h of the support portion 311 is lower than the constraint end g, causing the support portion 311 to be inclined toward the push block 332 (see...). Figure 12 (As shown). The free end h protrudes relative to the constrained end g in a first direction, which is the direction in which the main shaft mechanism 31 extends toward the elastic component 33 when the folding screen device is in a flattened state. Thus, when the first end of the push block 332 is supported on the support portion 311, the support portion 311 exerts a component force on the push block 332 along the flattening direction (see...). Figure 12 As shown in Fx, this increases the force exerted by the spindle mechanism 31 on the push block 332 in the flattening direction, ensuring that the elastic force generated after the elastic element 331 is compressed can stably drive the support element 321 away from the spindle mechanism 31. Figure 12 In the figure, F is the resultant force of the supporting part 311 on the push block 332, and Fx is the component force of the supporting part 311 on the push block 332 in the flattening direction.

[0148] See Figure 16 As shown, the side of the spindle mechanism 31 facing the push block 332 includes a second main surface 31a and a supporting surface 311a, with the second main surface 31a located on the side of the supporting surface 311a close to the outer surface d of the spindle mechanism 31.

[0149] Figure 17 yes Figure 15 A schematic diagram of the middle pusher block. See also... Figure 17 As shown, the end face of the first end of the push block 332 includes a third main surface m and a bending surface n, with the bending surface n located on the side of the third main surface m closest to the flexible screen 10. When the support member 321 rotates to the flattened state, the third main surface m of the push block 332 abuts against the second main surface 31a of the main shaft mechanism 31 face to face, and the bending surface n of the push block 332 abuts against the supporting surface 311a of the main shaft mechanism 31.

[0150] Figure 18 yes Figure 8 Cross-sectional view of the middle section of the structure. See also Figure 11 and Figure 18 As shown, before the support member 321 rotates to the flattened state, as the first end of the support member 321 rotates, the third main surface m of the first end of the push block 332 rotates towards the second main surface 31a of the spindle mechanism 31, and the bent surface n of the first end of the push block 332 rotates towards the supporting surface 311a of the spindle mechanism 31, until the support member 321 rotates to the flattened state, at which point the third main surface m abuts against the second main surface 31a, and the bent surface n abuts against the supporting surface 311a (see...). Figure 12As shown), the spindle mechanism 31, through the second main surface 31a and the supporting surface 311a, pushes the push block 332 in the direction away from the spindle mechanism 31 (see...). Figure 11 The compression (in the direction indicated by the middle arrow a) causes the elastic element 331 at one end of the pusher 332 to compress, and the elastic element 331 generates elastic force and pushes the support 321 away from the main shaft mechanism 31.

[0151] Figure 19 yes Figure 9 Cross-sectional view of the middle section of the structure. See also Figure 11 and Figure 19 As shown, correspondingly, when the support member 321 rotates from the flattened state to the folded state, the first end of the pusher 332 moves upward (i.e., away from the flexible screen 10), and the bending surface n of the first end of the pusher 332 can first disengage from the supporting surface 331a of the main shaft mechanism 31 (see...). Figure 12 (As shown), then the third main surface m of the first end of the push block 332 disengages from the second main surface 31a of the main shaft mechanism 31 until the support member 321 rotates to the folded state, at which point the first end of the push block 332 completely disengages from the side wall of the main shaft mechanism 31 (see...). Figure 9 (As shown).

[0152] Understandable, see [link / reference] Figure 12 As shown, the second main surface 31a and the third main surface m can both be planes perpendicular to the flattening direction, so that when the push block 332 rotates to the flattening state, it can be subjected to the squeezing force of the main shaft mechanism 31 in the flattening direction, ensuring that the elastic element 331 is stably compressed in the flattening direction.

[0153] To ensure that the first end of the push block 332 can better avoid the side wall of the main shaft mechanism 31 when the support member 321 rotates around the main shaft mechanism 31, at least a portion of the surface of the support portion 311 facing the push block 332 can be an arc-shaped surface, and at least a portion of the surface of the first end of the push block 332 can be an arc-shaped surface that matches the arc-shaped surface. For example, at least a portion of the support surface 311a of the support portion 311 can be set as an arc-shaped surface, and at least a portion of the surface of the bending surface n of the push block 332 can be set as an arc-shaped surface that matches the arc-shaped surface, so that the first end of the push block 332 can avoid the support portion 311 well during rotation without affecting the stability of the push block 332 in the installation channel 324.

[0154] Furthermore, by making at least a portion of the surface of the support portion 311 facing the push block 332 arc-shaped, the contact area between the bent surface n at the first end of the push block 332 and the support surface 311a is increased compared to a planar structure, thereby improving the stability of the bent surface n of the push block 332 on the support surface 311a (see...). Figure 12 (As shown).

[0155] See also Figure 16As shown in the embodiment of this application, the spindle mechanism 31 may also have a reinforcing part 312 on the side wall facing the push block 332, the constraint end g of the supporting part 311 is connected to the reinforcing part 312, and a portion of the surface of the first end of the push block 332 cooperates with the reinforcing part 312.

[0156] It can be understood that the surface of the reinforcing part 312 facing the push block 332 forms the second main surface 31a of the main shaft mechanism 31. When the support member 321 rotates to the flattened state, the third main surface m of the first end of the push block 332 abuts against the surface of the reinforcing part 312 (see...). Figure 12 (As shown).

[0157] In this embodiment, a reinforcing part 312 is provided on the side wall of the spindle mechanism 31 facing the push block 332 to improve the mechanical strength of the side wall of the spindle mechanism 31, ensuring that the side wall of the spindle mechanism 31 will not be damaged during long-term contact with the first end of the push block 332, thereby extending the service life of the spindle mechanism.

[0158] Based on the above, when the support member 321 rotates to the flattened state, a portion of the surface of the first end of the push block 332, such as the bent surface n, supports the supporting surface 311a of the main shaft mechanism 31, such that there is a certain distance between the bent surface n of the push block 332 and the mounting surface of the support member 321 used to set the push block 332 (e.g., the inner bottom wall of the mounting channel 324). It can be understood that the inner bottom wall of the mounting channel 324 can be regarded as the first main surface 3212a of the support member 321 (see...). Figure 12 and Figure 14 (As shown).

[0159] See Figure 12 As shown, in order to ensure that the push block 332 can move along the flattening direction, the push block 332 may have a support portion 332a. The support portion 332a is located on the side of the push block 332 facing the flexible screen 10. The support portion 332a is supported on the surface of the support member 321. For example, the support portion 332a is supported on the first main surface 3212a of the support member 321.

[0160] In this embodiment, a support portion 332a is provided on the side of the push block 332 facing the flexible screen 10, and the support portion 332a is supported on the support member 321. This allows the first end of the push block 332 to move along the surface of the support member 321 when it is squeezed by the main shaft mechanism 31. In particular, when a part of the first end of the push block 332 is supported on the support portion 311 of the main shaft mechanism 31, the push block 332 moves stably along the surface of the support member 321 through the support portion 332a. This ensures that the push block 332 moves stably in the flattening direction without vertical displacement, allowing the elastic member 331 to be compressed to a greater extent and driving the support member 321 to move away from the main shaft mechanism 31.

[0161] See Figure 14 As shown, in the configuration, the support member 321 may have a groove 3213, with at least a portion of the groove 3213 located between the first opening 324a and the spindle mechanism 31, and the support portion 332a slidingly disposed within the groove 3213. For example, the groove 3213 may be formed on the surface of the support member 321 between the first opening 324a and the spindle mechanism 31, so that the support portion 332a of the push block 332 is supported within the groove 3213.

[0162] By sliding the support part 332a in the groove 3213, the opposite side walls of the groove 3213 restrict the movement of the support part 332a in the direction perpendicular to the flattening direction. This restricts the movement path of the support part 332a on the support member 321, ensuring that the support part 332a moves stably in the flattening direction. This ensures that the push block 332 can compress the elastic member 331 in the flattening direction, and that the elastic force generated after the elastic member 331 is compressed can stably drive the support member 321 to move.

[0163] See Figure 17 As shown, the pusher block 332 in this embodiment of the application may include a main body 3321 and at least one connecting part 3322. One end of the main body 3321 is connected to the connecting part 3322, and the other end of the main body 3321 is engaged with the spindle mechanism 31 (see...). Figure 12 As shown), to ensure that it is squeezed by the spindle mechanism 31, in other words, the main body 3321 is disposed close to the spindle mechanism 31, the connecting part 3322 is disposed away from the spindle mechanism 31, and at least part of the elastic member 331 is sleeved on the connecting part 3322 to improve the stability of the elastic member 331 on the push block 332, so that the elastic member 331 can be stably compressed or extended along the connecting part 3322.

[0164] The support portion 332a of the push block 332 is located on the side of the main body 3321 facing the flexible screen 10, allowing the main body 3321 to move stably along the slide groove 3213 of the support member 321. Furthermore, the extending direction of the connecting portion 3322 of the push block 332 is consistent with the extension and retraction direction of the elastic member 331, allowing the elastic member 331 to move freely along the extending direction of the connecting portion 3322.

[0165] Figure 20 yes Figure 11 A magnified view of section II in the middle. See also... Figure 13 and Figure 20 As shown, in order to ensure that the elastic component 33 moves stably within the mounting channel 324, the inner wall of the mounting channel 324 may have a stop portion 321b, and the second end of the elastic component 331 abuts against the side of the stop portion 321b facing the first opening 324a, so as to ensure that the elastic component 33 is stably connected to the support member 321.

[0166] It can be understood that one end of the abutment 321b is connected to the inner wall of the mounting channel 324, and the other end of the abutment 321b is located in the inner cavity of the mounting channel 324 (see...). Figure 13 As shown), the abutment 321b includes two opposing surfaces, one facing the first opening 324a of the mounting channel 324 and the other facing away from the first opening 324a of the mounting channel 324. The second end of the elastic member 331 abuts against the surface of the abutment 321b facing the first opening 324a (see Figure 1). Figure 20 As shown), when the elastic member 331 is in a compressed state, the support member 321 can be driven to move along the elastic force direction through the second end of the elastic member 331.

[0167] It should be noted that when the elastic element 331 is a compression spring, the compression spring has a surface facing away from the first end of the compression spring at any position along the compression direction. Therefore, the second end of the elastic element 331 can be the end face facing away from the first end of the elastic element 331, or it can be any part of the surface near the second end of the elastic element 331 facing away from the first end of the elastic element 331. For example, any surface of the elastic element 331 near the second end facing away from the first end abuts against the stop portion 321b (see...). Figure 20 (As shown).

[0168] In this embodiment of the application, by abutting the second end of the elastic member 331 against the abutment portion 321b in the mounting channel 324, the abutment stability of the second end of the elastic member 331 on the support member 321 is improved, the assembly process between the elastic member 331 and the mounting channel 324 is simplified, and the assembly efficiency between the elastic member 331 and the mounting channel 324 is improved.

[0169] See Figure 11 As shown, it can be understood that the push block 332 of the elastic component 33 needs to be movably set in the mounting channel 324. In other words, the push block 332 can have room to move in the mounting channel 324 so as to ensure that the spindle mechanism 31 can compress the elastic component 331 by squeezing the push block 332 and moving the push block 332 away from the spindle mechanism 31.

[0170] For example, when the push block 332 is in a free state (i.e., does not interfere with the spindle mechanism 31), the end of the connecting part 3322 facing away from the main body part 3321 can have a certain distance from the abutting part 321b, so as to ensure that the push block 332 can move in the direction of arrow a under the abutment of the spindle mechanism 31 (see arrow a). Figure 7 (As shown) move.

[0171] Figure 21 yes Figure 7 A third-view structural diagram of the central spindle mechanism. (See also...) Figure 11 and Figure 21 As shown, in some examples, the end of the mounting channel 324 facing away from the spindle mechanism 31 may have a second opening 324b, and the connecting part 3322 is movably inserted into the second opening 324b to ensure that the push block 332 can move in the direction of arrow a under the abutment of the spindle mechanism 31 (see arrow a). Figure 11 (As shown) the movement. It can be understood that the end of the connecting part 3322 facing away from the main body part 3321 protrudes through the second opening 324b and is movably disposed on the outer port side of the second opening 324b.

[0172] For example, when the support 321 rotates to the flattened state, the side wall of the main shaft mechanism 31 presses against the main body 3321 of the push block 332, causing the main body 3321 to move in the direction of arrow a, thereby driving the connecting part 3322 at one end of the main body 3321 to move in the direction of arrow a, so that the end of the connecting part 3322 facing away from the main body 3321 moves away from the second opening 324b outside the second opening 324b, and the elastic member 331 located in the mounting channel 324 is compressed under the pressure of the main body 3321.

[0173] In the above example, by movably inserting the connecting part 3322 into the second opening 324b, the setting length of the connecting part 3322 is extended. In this way, the elastic member 331 can be fitted onto the connecting part 3322 to a greater extent. For example, the elastic member 331 located in the mounting channel 324 can be completely fitted onto the connecting part 3322, thereby ensuring that the elastic member 331 is stably compressed or extended in the moving direction of the push block 332.

[0174] See Figure 21 As shown in the embodiment of this application, the blocking part 321b can be arranged around the circumference of the mounting channel 324. For example, the blocking part 321b can be an annular member arranged around the circumference of the mounting channel 324. One end of the annular member is connected to the inner wall of the mounting channel 324, and the other end of the annular member (the end facing away from the inner wall of the mounting channel 324) can form a second opening 324b. In this way, the manufacturing process of the second opening 324b is simplified, thereby improving the manufacturing efficiency of the support member 321.

[0175] Of course, in some examples, the abutment 321b may be a strip-shaped member spaced circumferentially along the mounting channel 324, with the second end of the elastic member 331 abutting against the side surface of each strip-shaped member facing the first opening 324a. One end of each strip-shaped member is connected to the inner wall of the mounting channel 324, and the other end of each strip-shaped member (the end facing away from the inner wall of the mounting channel 324) may form a second opening 324b.

[0176] To improve the stability of the elastic element 331 on the connecting portion 3322, see... Figure 15As shown, the elastic component 33 may further include a positioning member 333, which is sleeved on the end of the connecting portion 3322 facing away from the main body portion 3321 (see Figure 1). Figure 20 As shown, at least a portion of the elastic element 331 is fitted between the main body 3321 and the positioning element 333.

[0177] See Figure 17 As shown, during installation, a mounting groove 3322c can be formed circumferentially on the connecting part 3322, and the positioning member 333 is engaged in the mounting groove 3322c.

[0178] Among them, the positioning member 333 is located on the side of the blocking part 321b facing away from the first opening 324a (in conjunction with...). Figure 12 and Figure 20 As shown), in other words, the positioning member 333 is located on the outer port side of the second opening 324b, so that the end of the connecting part 3322 facing away from the main body part 3321 is restricted to the outside of the second opening 324b. This ensures that the connecting part 3322 will not enter the mounting channel 324 from the second opening 324b in any state, and then disengage from the mounting channel 324 from the first opening 324a. That is, the push block 332 will not disengage from the mounting channel 324 from the first opening 324a in any state, thereby ensuring the stability of the push block 332 in the mounting channel 324.

[0179] See Figure 11 As shown, when the support member 321 rotates to the flattened state, the side wall of the main shaft mechanism 31 presses the main body 3321 toward the connecting part 3322, so that the elastic member 331 on the connecting part 3322 is in a compressed state. The elastic member 331 generates elastic force in the compressed state. The elastic force acts on the blocking part 321b, thereby driving the support member 321 to move away from the main shaft mechanism 31, thereby flattening the flexible screen 10 on one side of the support member 321.

[0180] When the elastic element 331 drives the support 321 to move away from the main spindle mechanism 31, the connecting part 3322 moves relative to the support 321 towards the main spindle mechanism 31. Because the positioning element 333 abuts against the outer end face of the second opening 324b, the end of the connecting part 3322 facing away from the main body 3321 will not enter the mounting channel 324 from the second opening 324b, and therefore will not come out from the first opening 324a of the mounting channel 324, so that the push block 332 and the elastic element 331 on the push block 332 are stably assembled in the mounting channel 324.

[0181] See Figure 17As shown, there can be one or more connecting parts 3322. When there is only one connecting part 3322 (not shown), one connecting part 3322 can be set at the center of the main body 3321 to ensure that the force of the elastic member 331 on the main body 3321 is located at the center of the main body 3321, thereby ensuring that the elastic member 331 is compressed along the moving direction of the main body 3321 and avoiding the elastic member 331 tilting perpendicular to the compression direction, which would affect the driving of the support member 321 in the flattening direction.

[0182] See Figure 17 As shown, there may be at least two connecting parts 3322, with at least two connecting parts 3322 spaced apart at one end of the main body 3321.

[0183] The number of elastic elements 331 can be one or more, and each elastic element 331 is respectively sleeved on the corresponding connecting part 3322 (see Figure 10 and Figure 15 As shown), in other words, the connecting part 3322 and the elastic member 331 can be provided one-to-one, so that the elastic member 331 is stably compressed along the moving direction of the main body part 3321, thereby pushing the support member 321 to move stably along the elastic force direction under the action of the two elastic members 331, thereby pushing the support member 321 to move stably in the flattening direction.

[0184] Figure 22 yes Figure 7 Partial cross-sectional view. See also Figure 13 and Figure 22 As shown, when there are multiple connecting parts 3322, the mounting channel 324 may have an isolation part 321c, which divides the mounting channel 324 into multiple sub-channels, and the multiple sub-channels are arranged side by side along the axis parallel to the main shaft mechanism 31.

[0185] Taking the two connecting parts 3322 as an example, the mounting channel 324 has an isolation part 321c, see [link / reference]. Figure 13 As shown, the isolation part 324c divides the mounting channel 324 into two sub-channels. The two sub-channels are arranged side by side along the axis parallel to the main shaft mechanism 31, and at least a portion of the two connecting parts 3322 are respectively arranged in the corresponding sub-channels.

[0186] See Figure 13 As shown, the two sub-channels include a first sub-channel 3241 and a second sub-channel 3242, respectively. (See also...) Figure 17As shown, the two connecting portions 3322 respectively include a first connecting portion 3322a and a second connecting portion 3322b. The first connecting portion 3322a and the elastic element 331 on the first connecting portion 3322a are movably disposed within the first sub-channel 3241. Correspondingly, the second connecting portion 3322b and the elastic element 331 on the second connecting portion 3322b are movably disposed within the second sub-channel 3242 (see [reference]). Figure 22 (As shown).

[0187] See Figure 14 and Figure 21 As shown, it can be understood that the two ends of the isolation portion 321c can extend to the first opening 324a and the second opening 324b of the mounting channel 324, respectively, such that the first opening 324a is divided into a first sub-opening i and a first sub-opening j, wherein the first sub-opening i is the first opening 324a corresponding to the first sub-channel 3241, and the first sub-opening j is the first opening 324a corresponding to the second sub-channel 3242 (see...). Figure 14 (As shown).

[0188] See Figure 21 As shown, correspondingly, the isolation portion 321c divides the second opening 324b into a second sub-opening k and a second sub-opening p, wherein the second sub-opening k is the second opening 324b corresponding to the first sub-channel 3241, and the second sub-opening p is the second opening 324b corresponding to the second sub-channel 3242. It can be understood that the second sub-opening k and the second sub-opening p can be formed by a portion of the blocking portion 321b and the isolation portion 321c.

[0189] See Figure 22 As shown, the main body 3321 of the push block 332 is located on the side of the first opening 324a facing the spindle mechanism 31 (i.e., the side of the mounting channel 324 facing the spindle mechanism 31). One end of the first connecting part 3322a facing away from the main body 3321 extends to the outside of the second sub-opening k corresponding to the first sub-channel 3241 (i.e., the side of the first sub-channel 3241 facing away from the spindle mechanism 31). The second end of the elastic member 331 on the first connecting part 3322a abuts against the inner end face of the blocking part 321b and the isolation part 321c corresponding to the first sub-channel 3241. Correspondingly, one end of the second connecting part 3322b facing away from the main body 3321 extends to the outside of the second sub-opening p corresponding to the second sub-channel 3242. The second end of the elastic member 331 on the second connecting part 3322b abuts against the inner end face of the blocking part 321b and the isolation part 321c corresponding to the second sub-channel 3242.

[0190] See Figure 22As shown, when the support member 321 rotates to the flattened state, the side wall of the main shaft mechanism 31 presses the main body 3321 toward the connecting part 3322, so that the elastic members 331 on the first connecting part 3322a and the second connecting part 3322b are both in a compressed state. The two elastic members 331 generate elastic force in the compressed state. This elastic force acts on the blocking part 321b and the isolation part 321c in the corresponding sub-channel, thereby driving the support member 321 to move away from the main shaft mechanism 31 in the direction of arrow a, so that the flexible screen 10 on one side of the support member 321 is flattened.

[0191] In this embodiment of the application, by disposing at least a portion of the two connecting parts 3322 in the corresponding sub-channels, it is further ensured that each connecting part 3322 and the elastic element 331 on the connecting part 3322 move stably along the corresponding sub-channel. On the one hand, this avoids the left and right offset of each connecting part 3322 in the direction perpendicular to the flattening direction, and on the other hand, it avoids interference between the two connecting parts 3322 and the elastic element 331 on the two connecting parts 3322 during movement.

[0192] See Figure 17 As shown, when there are multiple connecting parts 3322, the main body 3321 can have multiple support parts 332a. Each support part 332a is respectively disposed at one end of the corresponding connecting part 3322. This ensures that the movement of each connecting part 3322 within the mounting channel 324 is more stable, further improving the stability of the push block 332 on the support member 321. For example, when there are two connecting parts 3322, the main body 3321 can be provided with two support parts 332a, one of which is located at one end of the first connecting part 3322a, and the other is located at one end of the second connecting part 3322b.

[0193] Accordingly, see Figure 14 As shown, multiple grooves 3213 can be formed on the support member 321 for the support part 332a to slide. For example, the support member 321 is provided with two grooves 3213, including a first groove 3213a and a second groove 3213b. The first groove 3213a is for one of the support parts 332a to slide, and the second groove 3213b is for the other support part 332a to slide, thereby ensuring the stability of the push block 332 with two connecting parts 3322 on the support member 321.

[0194] Reference Figures 7 to 10 As shown, each rotating mechanism 32 includes at least one swing arm 322. The first end of the swing arm 322 is rotatably connected to the main shaft mechanism 31, and the second end of the swing arm 322 is connected to a corresponding structural member 20. For example, in one rotating mechanism 32, the first end of the swing arm 322 is rotatably connected to the main shaft mechanism 31, and the second end of the swing arm 322 is connected to the first structural member 21 (see [reference]). Figure 4 (as shown) connected; the first end of the swing arm 322 of another rotating mechanism 32 is rotatably connected to the main shaft mechanism 31, and the second end of the swing arm 322 is connected to the second structural member 22 (see...). Figure 4 (As shown) connection.

[0195] The swing arm 322 is located on the second surface 3212 side of the support member 321, and the swing arm 322 is connected to the support member 321 (for example, it can be connected by the housing link 323 mentioned below). The flexible screen 10 (for example, the third display area 13) is connected to the first surface 3211 (for example, it is connected by adhesive).

[0196] Additionally, see Figure 10 As shown, the first end of the swing arm 322 (as shown) Figure 10 (As shown in the middle s) refers to the end of the swing arm 322 facing the main shaft mechanism 31, and the second end of the swing arm 322 (as shown in the middle s) refers to the end of the swing arm 322 facing the main shaft mechanism 31. Figure 10 (As shown in the middle t) refers to the end of the swing arm 322 that faces away from the main shaft mechanism 31.

[0197] See Figure 7 As shown, taking each rotating mechanism 32 as an example, each rotating mechanism 32 includes a swing arm 322. One swing arm 322 is located on one side of the axis l of the main shaft mechanism 31, and the first end of each swing arm 322 is rotatably connected to the main shaft mechanism 31. Thus, the swing arm 322 can rotate around the main shaft mechanism 31. When the swing arm 322 rotates around the main shaft mechanism 31... Figure 7 Rotate in opposite directions as indicated by the middle arrow b, until the inner surfaces of the two swing arms 322 on both sides of the main shaft mechanism 31 are facing each other, as shown by the arrow. Figure 9 As shown, the hinge assembly 30 is in a folded state.

[0198] When the swing arm 322 rotates around the main shaft mechanism 31 along Figure 9 Rotate in opposite directions as indicated by the middle arrow c until the swing arm 322 is in the flattened position, as shown. Figure 7 As shown, the hinge assembly 30 is in a flattened state, wherein, Figure 8 The hinge assembly 30 shown is in a state between flattened and folded, i.e., a semi-folded state.

[0199] See Figure 7 As shown, when the swing arm 322 drives the support member 321 to rotate around the main shaft mechanism 31 to a flattened state, the first end of the swing arm 322 can also move relative to the main shaft mechanism 31, that is, the support member 321 drives the swing arm 322 to move away from the main shaft mechanism 31.

[0200] It is understandable that the first end of the swing arm 322 has a movement gap at the position where it rotates with the main shaft mechanism 31, so that when the support 321 moves away from the main shaft mechanism 31, it drives the swing arm 322 to move away from the main shaft mechanism 31.

[0201] It should be noted that after the support member 321 drives the swing arm 322 to move away from the main shaft mechanism 31, the first end of the swing arm 322 also maintains a rotational engagement with the main shaft mechanism 31 (see...). Figure 7 (As shown).

[0202] The second end of the swing arm 322 of the rotating mechanism 32 is connected to the corresponding structural member 20. Thus, each swing arm 322 can drive the corresponding structural member 20 to rotate during rotation. For example, the swing arm 322 on one side of the main shaft mechanism 31 drives the first structural member 21 to rotate, and the swing arm 322 on the other side of the main shaft mechanism 31 drives the second structural member 22 to rotate. Therefore, when the two swing arms 322 rotate towards each other around the main shaft mechanism 31, the first structural member 21 and the second structural member 22 also rotate towards each other until the inner surfaces of the two swing arms 322 are facing each other, at which point the hinge assembly... The hinge assembly 30 drives the first structural member 21 and the second structural member 22 to be in a folded state, thereby causing the hinge assembly 30 and the flexible screen 10 on the two structural members 20 to also bend to a folded state; when the swing arms 322 on both sides rotate in opposite directions around the main shaft mechanism 31, the first structural member 21 and the second structural member 22 also rotate in opposite directions until the swing arms 322 on both sides are in the flattened direction, the hinge assembly 30 drives the first structural member 21 and the second structural member 22 to also be in a flattened state, thereby causing the hinge assembly 30 and the flexible screen 10 on the two structural members 20 to also unfold to a flattened state.

[0203] When the swing arm 322 drives the support member 321 to rotate around the main shaft mechanism 31 to a flattened state, the support member 321 drives the swing arm 322 to move away from the main shaft mechanism 31. The second end of the swing arm 322 can drive the corresponding structural member 20 to move away from the main shaft mechanism 31, further ensuring that the flexible screen 10 is flattened under the drive of the structural member 20 and the rotation mechanism 32.

[0204] In practical applications, each rotating mechanism 32 can have multiple swing arms 322. Multiple swing arms 322 are spaced apart along the axial direction of the main shaft mechanism 31. Multiple swing arms 322 rotate around the main shaft mechanism 31 simultaneously, so that the hinge assembly 30 can be arbitrarily engaged between the flattened state and the folded state, thereby driving the first structural member 21 and the second structural member 22 on both sides of the hinge assembly 30 to switch between the flattened state and the folded state.

[0205] All the swing arms 322 and the elastic components 33 are located on the same side of the support 321. For example, all the swing arms 322 and the elastic components 33 are located on the outer surface of the support 321, and a portion of the flexible screen 10, such as the third display area 13, is located on the inner surface of the support 321.

[0206] Each swing arm 322 is connected to the support member 321. For example, each swing arm 322 can be connected to the support member 321 via a housing connecting rod 323 (mentioned below), so that one end of the support member 321 is rotatably connected to the main shaft mechanism 31 via the swing arm 322, and the other end of the support member 321 is connected to the corresponding structural member 20 via the swing arm 322. When all the swing arms 322 rotate around the main shaft mechanism 31, the support member 321 can rotate around the main shaft mechanism 31 under the drive of all the swing arms 322, thereby causing the flexible screen 10 and the elastic component 33 on both sides of the support member 321 to rotate around the main shaft mechanism 31. This ensures that the first end of the elastic component 33 can interfere with the main shaft mechanism 31 when the rotating mechanism 32 rotates to the flattened state, and further drives the support member 321 to move away from the main shaft mechanism 31, ensuring that the flexible screen 10 is flattened.

[0207] In addition, when the rotating mechanism 32 rotates to the flattened state, multiple swing arms 322 can move away from the main shaft mechanism 31 under the drive of the support member 321, thereby stably driving the corresponding structural member 20 to move away from the main shaft mechanism 31, so that the structural member 20 drives the flexible screen 10 to flatten.

[0208] See Figure 7 As shown, each rotating mechanism 32 may also include at least one housing link 323, which is located on the support member 321 and on the same side of the support member 321 as the swing arm 322 and the elastic component 33. For example, the housing link 323, the swing arm 322 and the elastic component 33 are all located on the outer surface of the support member 321.

[0209] When the second end t of the swing arm 322 is connected to the corresponding structural component 20, the indirect connection between the second end t of the swing arm 322 and the corresponding structural component 20 can be achieved through the housing connecting rod 323. For example, the second end t of the swing arm 322 is rotatably connected to the housing connecting rod 323, and the housing connecting rod 323 is connected to the corresponding structural component 20. For example, the housing connecting rod 323 is connected to the middle frame of the foldable screen device.

[0210] In addition, the housing link 323 is also connected to the support member 321, so that when the swing arm 322 is connected to the support member 321, it can be connected to the support member 321 through the housing link 323, thereby improving the connection stability between the swing arm 322 and the support member 321. This allows the swing arm 322 to drive the support member 321 to rotate stably around the main shaft mechanism 31 through the housing link 323, thereby ensuring that when the support member 321 rotates to the flattened state, the first end of the elastic component 33 can interfere with the main shaft mechanism 31, so that the support member 321 moves away from the main shaft mechanism 31 under the drive of the elastic component 33. This, in turn, drives the corresponding structural component 20 to move away from the main shaft mechanism 31 through the swing arm 322 and the housing link 323, so that the support member 321 and the structural component 20 drive the flexible screen 10 to flatten when in the flattened state.

[0211] See Figure 7 As shown, when the swing arm 322 and the housing connecting rod 323 drive the support member 321 to rotate around the main shaft mechanism 31 to a flattened state, the support member 321 can simultaneously drive the swing arm 322 and the housing connecting rod 323 to move away from the main shaft mechanism 31, so that the housing connecting rod 323 drives the corresponding structural member 20 to move away from the main shaft mechanism 31, further ensuring that the flexible screen 10 is flattened under the drive of the structural member 20 and the rotating mechanism 32.

[0212] It is understandable that the end of the housing link 323 near the main spindle mechanism 31 is independent of the main spindle mechanism 31, that is, the two are not connected, so as to ensure that the housing link 323 can also move relative to the main spindle mechanism 31 when the support 321 moves away from the main spindle mechanism 31.

[0213] It is understandable that one end of the housing link 323 has a connector 32a (see...) Figure 5 The housing connecting rod 323 can be connected to the structural member 20 through the connector 32a.

[0214] It is understandable that when the rotating mechanism 32 includes multiple swing arms 322, there are corresponding multiple housing connecting rods 323. The multiple housing connecting rods 323 are arranged one-to-one with the swing arms 322. In other words, the second end t of each swing arm 322 is connected to the corresponding housing connecting rod 323, and each housing connecting rod 323 is connected to the structural member 20, so that the multiple swing arms 322 drive the structural member 20 to move through the corresponding housing connecting rods 323.

[0215] It should be noted that the numerical values ​​and ranges involved in the embodiments of this application are approximate values. Due to the influence of the manufacturing process, there may be a certain range of errors, which can be considered negligible by those skilled in the art.

[0216] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0217] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

Claims

1. A foldable screen device, characterized in that, It includes a flexible screen (10), two structural members (20) and a hinge assembly (30) located between the two structural members (20), the flexible screen (10) being located on the same side surface of the two structural members (20) and the hinge assembly (30); The hinge assembly (30) includes a main shaft mechanism (31) and two rotating mechanisms (32) located on both sides of the main shaft mechanism (31) and rotatably connected to the main shaft mechanism (31); each rotating mechanism (32) includes a support member (321), the first end of the support member (321) is rotatable around the main shaft mechanism (31), the second end of the support member (321) is connected to the corresponding structural member (20), and part of the flexible screen (10) is connected to one side surface of the support member (321); The support member (321) is also provided with an elastic component (33). The first end of the elastic component (33) is used to abut against the main shaft mechanism (31) when the rotating mechanism (32) rotates to the flattened state. The second end of the elastic component (33) is connected to the support member (321). The compression amount of the elastic component (33) when the rotating mechanism (32) rotates to the flattened state is greater than the compression amount when the rotating mechanism (32) rotates to the folded state.

2. The foldable screen device according to claim 1, characterized in that, The support member (321) has a mounting channel (324), and the mounting channel (324) has a first opening (324a) on the side facing the spindle mechanism (31). At least a portion of the elastic component (33) is housed within the mounting channel (324), with the second end of the elastic component (33) abutting against the inner wall of the mounting channel (324), and the first end of the elastic component (33) abutting against the spindle mechanism (31) through the first opening (324a).

3. The foldable screen device according to claim 2, characterized in that, The elastic component (33) includes an elastic element (331) and a pusher (332); The first end of the push block (332) extends to the outside of the first opening (324a) and cooperates with the main shaft mechanism (31). The second end of the push block (332) abuts against the first end of the elastic component (33), and the second end of the elastic component (33) abuts against the inner wall of the mounting channel (324).

4. The foldable screen device according to claim 3, characterized in that, The main spindle mechanism (31) has a support portion (311) located on the side wall of the main spindle mechanism (31) facing the push block (332); When the support (321) is rotated to the flattened state, at least a portion of the surface of the first end of the push block (332) is supported on the support (311).

5. The foldable screen device according to claim 4, characterized in that, The support portion (311) includes a free end and a constraint end disposed opposite each other along an axis perpendicular to the main shaft mechanism (31); The constrained end is close to the axis of the main spindle mechanism (31), the free end is far from the axis of the main spindle mechanism (31), and the distance between the free end and the outer surface of the main spindle mechanism (31) is greater than the distance between the constrained end and the outer surface of the main spindle mechanism (31).

6. The foldable screen device according to claim 4 or 5, characterized in that, At least a portion of the surface of the support (311) facing the push block (332) is an arc-shaped surface, and at least a portion of the surface of the first end of the push block (332) is an arc-shaped surface that mates with the arc-shaped surface.

7. The foldable screen device according to claim 5, characterized in that, The main spindle mechanism (31) also has a reinforcing part (312) on the side wall facing the push block (332), and the constraint end of the supporting part (311) is connected to the reinforcing part (312); A portion of the surface of the first end of the pusher (332) engages with the reinforcing part (312).

8. The foldable screen device according to any one of claims 4-5 and 7, characterized in that, The push block (332) has a support portion (332a) located on the side of the push block (332) facing the flexible screen (10); The support (332a) is supported on the surface of the support member (321).

9. The foldable screen device according to claim 8, characterized in that, The support member (321) has a groove (3213), at least a portion of which is located between the first opening (324a) and the main shaft mechanism (31); The support (332a) is slidably disposed in the slide groove (3213).

10. The foldable screen device according to any one of claims 3-5, 7 and 9, characterized in that, The pusher (332) includes a main body (3321) and at least one connecting part (3322). One end of the main body (3321) is connected to the connecting part (3322), and the other end of the main body (3321) is engaged with the main shaft mechanism (31). The support part (332a) of the push block (332) is located on the main body (3321), and at least a portion of the elastic member (331) is sleeved on the connecting part (3322).

11. The foldable screen device according to claim 10, characterized in that, The inner wall of the installation channel (324) has a stop (321b), and the second end of the elastic member (331) abuts against the side of the stop (321b) facing the first opening (324a); The mounting channel (324) has a second opening (324b) at one end opposite to the main shaft mechanism (31), and the connecting part (3322) is movably inserted into the second opening (324b).

12. The foldable screen device according to claim 11, characterized in that, The blocking part (321b) is arranged circumferentially along the mounting channel (324), and the end of the blocking part (321b) facing away from the inner wall of the mounting channel (324) forms the second opening (324b).

13. The foldable screen device according to claim 12, characterized in that, The elastic component (33) also includes a positioning element (333); The positioning member (333) is sleeved on the end of the connecting part (3322) facing away from the main body part (3321), and at least a portion of the elastic member (331) is located between the main body part (3321) and the positioning member (333); The positioning element (333) is located on the side of the blocking part (321b) facing away from the first opening (324a).

14. The foldable screen device according to any one of claims 11-13, characterized in that, There are two connecting parts (3322), and the two connecting parts (3322) are spaced apart at one end of the main body (3321); There are two elastic elements (331), and each elastic element (331) is respectively sleeved on the corresponding connecting part (3322).

15. The foldable screen device according to claim 14, characterized in that, The mounting channel (324) has an isolation section (321c) that divides the mounting channel (324) into two sub-channels; The two sub-channels are arranged side by side along the axis parallel to the main shaft mechanism (31), and at least a portion of the two connecting parts (3322) are respectively arranged in the corresponding sub-channels.

16. The foldable screen device according to any one of claims 1-5, 7, 9, 11-13, characterized in that, Each of the aforementioned rotating mechanisms (32) also includes a plurality of swing arms (322); The first end of each swing arm (322) is rotatably connected to the main shaft mechanism (31), and the second end of each swing arm (322) is connected to the corresponding structural member (20). All the swing arms (322) and the elastic component (33) are located on the same side of the support member (321), and each swing arm (322) is connected to the support member (321). The first end of the swing arm (322) has a moving gap at the position where it rotates with the main shaft mechanism (31), so that when the support member (321) moves away from the main shaft mechanism (31), it drives the swing arm (322) to move away from the main shaft mechanism (31).

17. The foldable screen device according to claim 16, characterized in that, Each of the rotating mechanisms (32) also includes a plurality of housing links (323), all of which are located on the support (321), and the plurality of housing links (323) are arranged in a one-to-one correspondence with the plurality of swing arms (322); The second end of the swing arm (322) is rotatably connected to the housing link (323), and each housing link (323) is connected to the support member (321) so that when the support member (321) moves away from the main shaft mechanism (31), it drives the housing link (323) to move away from the main shaft mechanism (31); The housing link (323) is connected to the corresponding structural member (20).

18. A hinge assembly, characterized in that, It includes a main shaft mechanism (31) and two rotating mechanisms (32) located on both sides of the main shaft mechanism (31) and rotatably connected to the main shaft mechanism (31); each rotating mechanism (32) includes a support member (321), the first end of the support member (321) is rotatable around the main shaft mechanism (31), and the second end of the support member (321) is connected to the structural component (20) of the folding screen device; a portion of the flexible screen (10) is connected to one side surface of the support member (321); The support member (321) is provided with an elastic component (33). The first end of the elastic component (33) is used to abut against the main shaft mechanism (31) when the rotating mechanism (32) rotates to the flattened state. The second end of the elastic component (33) is used to connect with the support member (321) when the rotating mechanism (32) rotates to the flattened state. The compression amount of the elastic component (33) when the rotating mechanism (32) rotates to the flattened state is greater than the compression amount when the rotating mechanism (32) rotates to the folded state.

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