Frame assembly and electronic device

Abstract

The present application provides a frame assembly and an electronic device. The frame assembly comprises a middle frame, an edge pressing support, an elastic sealing strip, and a limiting structure arranged on an inner surface of the edge pressing support. The edge pressing support comprises a body and a pressing portion, the body is connected to the middle frame, a first end of the pressing portion is connected to the body, and a second end thereof extends in a direction away from the body and is arranged opposite to a part of the middle frame in the thickness direction of the frame assembly. The elastic sealing strip is connected to the inner surface of the edge pressing support, and the elastic sealing strip comprises a first side edge and a second side edge. The first side edge faces the first end, and the second side edge faces the second end. The limiting structure is located on one side of the first side edge, and a part of the elastic sealing strip is located in the limiting structure; or the limiting structure is located between the first side edge and the second side edge and penetrates through the elastic sealing strip; or the limiting structure is located on one side of the second side edge and protrudes relative to an inner surface of the pressing portion; or the limiting structure is filled with the elastic sealing strip. The technical solution of the present application can prevent the elastic sealing strip of an inner ring of a bezel housing from falling out.

Description

Frame components and electronic devices

[0001] This application claims priority to Chinese Patent Application No. 202411053520.9, filed on August 1, 2024, entitled "Frame Component and Electronic Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of electronic device technology, and more particularly to a frame assembly and an electronic device. Background Technology

[0003] As flexible foldable screen technology matures, foldable terminal products (such as foldable phones, foldable tablets, and foldable computers) are becoming increasingly widespread. In foldable terminal products, a small A-shell is typically located along the edge of the mid-frame. This A-shell uses an inner elastic sealing strip to directly press against the edge of the screen, providing functions such as fixation and dust protection. However, during repeated opening and closing of foldable terminal products, the screen is prone to rubbing against the A-shell, causing the inner elastic sealing strip of the A-shell to come loose, affecting the user experience and product quality. Summary of the Invention

[0004] Embodiments of this application provide a frame assembly and electronic device that can prevent the elastic sealing strip of the inner ring of the small A-shell from coming off, thereby improving the user experience and product quality.

[0005] In a first aspect, this application provides a border component, the border component comprising:

[0006] Mid-frame;

[0007] A pressing bracket, comprising a body and a pressing part, wherein the body is connected to the middle frame, a first end of the pressing part is connected to the body, a second end of the pressing part extends away from the body, and the pressing part and a portion of the middle frame are disposed opposite to each other in the thickness direction of the edge assembly;

[0008] An elastic sealing strip is connected to the inner surface of the pressing edge bracket. The elastic sealing strip includes a first side and a second side, with the first side facing the first end and the second side facing the second end.

[0009] A limiting structure is provided on the inner surface of the pressure plate bracket, the limiting structure is located on one side of the first side, and part of the elastic sealing strip is located in the limiting structure.

[0010] Understandably, in the bezel assembly, the edge-pressing bracket is used to press the edges of the flexible display screen. To prevent the flexible display screen from breaking due to rigid collision between the edge-pressing bracket and the flexible display screen, an elastic sealing strip needs to be installed between the edge-pressing bracket and the flexible display screen. This allows the edge-pressing bracket to press the edges of the flexible display screen through the elastic sealing strip, achieving functions such as fixation and dust prevention between the edge-pressing bracket and the flexible display screen. However, in typical cases, the width of the portion of the edge-pressing bracket that presses the flexible display screen is relatively narrow. This makes the connection width of the elastic sealing strip within the edge-pressing bracket even narrower, resulting in limited connection strength between the elastic sealing strip and the edge-pressing bracket.

[0011] Furthermore, during the opening and closing of the bezel assembly, the flexible display screen unfolds and folds accordingly. During this process, the flexible display screen undergoes elastic deformation, contracting and elongating along its extension direction, causing it to rub against the edge support. This rubbing can scrape against the elastic sealing strip, making it prone to dislodging and failure, thus affecting the quality of the bezel assembly and the user experience.

[0012] Based on this, in this embodiment, by adding a limiting structure to the inner surface of the pressure edge bracket and positioning the limiting structure on one side of the first side of the elastic sealing strip, the limiting structure can be located further away from the second end of the pressing part compared to the elastic sealing strip. That is, the limiting structure is generally located behind the elastic sealing strip. Since a portion of the elastic sealing strip is located outside the limiting structure and connected to the flexible display screen, while another portion is located inside the limiting structure, when a portion of the elastic sealing strip outside the limiting structure tends to detach from the pressure edge bracket along the second end of the pressing part due to being rubbed by the flexible display screen, the movement of the elastic sealing strip parallel to the pressing part can be restricted by the pulling action of the other portion of the elastic sealing strip located within the limiting structure. This weakens or even eliminates the aforementioned tendency to move, effectively preventing the elastic sealing strip from detaching from the pressure edge bracket due to being rubbed by the flexible display screen, thus improving user experience and product quality.

[0013] Furthermore, since the elastic sealing strip is connected not only to the inner surface of the pressure edge bracket but also to the limiting structure, and the limiting structure is located on the inner surface of the pressure edge bracket, the connection area between the elastic sealing strip and the pressure edge bracket can be increased by adding the connection area within the limiting structure, thereby effectively increasing the connection area between the elastic sealing strip and the pressure edge bracket and improving the connection strength between them.

[0014] Furthermore, in related technologies, since the edge-pressing bracket needs to be pressed onto the top of the flexible display screen via an elastic sealing strip, the edge-pressing bracket needs to occupy a certain width of the edge of the flexible display screen to ensure the connection between the edge-pressing bracket and the flexible display screen. To prevent the elastic sealing strip from detaching from the edge-pressing bracket during the opening and closing of the flexible display screen, a distance needs to be reserved between the elastic sealing strip and the outer edge of the edge-pressing bracket, resulting in the edge-pressing bracket occupying more of the edge width of the flexible display screen. Based on this, in this embodiment, by setting the limiting structure on one side behind the elastic sealing strip and partially placing the elastic sealing strip within the limiting structure, the limiting effect of the limiting structure located behind the elastic sealing strip can prevent the elastic sealing strip from detaching from the edge-pressing bracket during the opening and closing of the flexible display screen. This shortens the reserved distance between the outer edge of the edge-pressing bracket (i.e., the second end of the pressing part) located in front of the elastic sealing strip and the elastic sealing strip, which helps to reduce the visible "black border" area (i.e., the non-display area A mentioned above) in the electronic device and increase the screen-to-body ratio of the flexible display screen.

[0015] Alternatively, the limiting structure is located between the first side and the second side and passes through the elastic sealing strip.

[0016] Understandably, in the bezel assembly, the edge-pressing bracket is used to press the edges of the flexible display screen. To prevent the flexible display screen from breaking due to rigid collision between the edge-pressing bracket and the flexible display screen, an elastic sealing strip needs to be installed between the edge-pressing bracket and the flexible display screen. This allows the edge-pressing bracket to press the edges of the flexible display screen through the elastic sealing strip, achieving functions such as fixation and dust prevention between the edge-pressing bracket and the flexible display screen. However, in typical cases, the width of the portion of the edge-pressing bracket that presses the flexible display screen is relatively narrow. This makes the connection width of the elastic sealing strip within the edge-pressing bracket even narrower, resulting in limited connection strength between the elastic sealing strip and the edge-pressing bracket.

[0017] Furthermore, during the opening and closing of the bezel assembly, the flexible display screen unfolds and folds accordingly. During this process, the flexible display screen undergoes elastic deformation, contracting and expanding along its extension direction, causing it to rub against the edge support. This rubbing can scrape against the elastic sealing strip, making it prone to dislodging and potentially causing it to fail. This ultimately affects the quality of the bezel assembly and the user experience.

[0018] Based on this, in this embodiment, by adding a limiting structure to the inner surface of the pressing bracket, and positioning the limiting structure between the first and second sides of the elastic sealing strip and passing through the elastic sealing strip, the limiting structure can directly limit the elastic sealing strip. Therefore, when the elastic sealing strip tends to detach from the pressing bracket along the second end of the pressing part due to being rubbed by the flexible display screen, the supporting effect of the limiting structure passing through the elastic sealing strip can restrict the movement of the elastic sealing strip in the direction parallel to the pressing part, thereby weakening or even eliminating the aforementioned tendency to move. This effectively prevents the elastic sealing strip from detaching from the pressing bracket due to being rubbed by the flexible display screen, improving user experience and product quality.

[0019] Alternatively, the limiting structure is located on one side of the second side and protrudes relative to the inner surface of the pressing part.

[0020] Understandably, in the bezel assembly, the edge-pressing bracket is used to press the edges of the flexible display screen. To prevent the flexible display screen from breaking due to rigid collision between the edge-pressing bracket and the flexible display screen, an elastic sealing strip needs to be installed between the edge-pressing bracket and the flexible display screen. This allows the edge-pressing bracket to press the edges of the flexible display screen through the elastic sealing strip, achieving functions such as fixation and dust prevention between the edge-pressing bracket and the flexible display screen. However, in typical cases, the width of the portion of the edge-pressing bracket that presses the flexible display screen is relatively narrow. This makes the connection width of the elastic sealing strip within the edge-pressing bracket even narrower, resulting in limited connection strength between the elastic sealing strip and the edge-pressing bracket.

[0021] Furthermore, during the opening and closing of the bezel assembly, the flexible display screen unfolds and folds accordingly. During this process, the flexible display screen undergoes elastic deformation, contracting and expanding along its extension direction, causing it to rub against the edge support. This rubbing can scrape against the elastic sealing strip, making it prone to dislodging and potentially causing it to fail. This ultimately affects the quality of the bezel assembly and the user experience.

[0022] Based on this, in this embodiment, by adding a limiting structure to the inner surface of the pressing bracket and filling the limiting structure with the elastic sealing strip, the limiting structure can directly limit the elastic sealing strip. Therefore, when the elastic sealing strip tends to detach from the pressing bracket along the second end of the pressing part due to being rubbed by the flexible display screen, the limiting structure surrounding the outer side of the elastic sealing strip can restrict its movement parallel to the pressing part, thereby weakening or even eliminating the aforementioned tendency to move. This effectively prevents the elastic sealing strip from detaching from the pressing bracket due to being rubbed by the flexible display screen, improving user experience and product quality.

[0023] Alternatively, the limiting structure may be filled with the elastic sealing strip.

[0024] Understandably, in the bezel assembly, the edge-pressing bracket is used to press the edges of the flexible display screen. To prevent the flexible display screen from breaking due to rigid collision between the edge-pressing bracket and the flexible display screen, an elastic sealing strip needs to be installed between the edge-pressing bracket and the flexible display screen. This allows the edge-pressing bracket to press the edges of the flexible display screen through the elastic sealing strip, achieving functions such as fixation and dust prevention between the edge-pressing bracket and the flexible display screen. However, in typical cases, the width of the portion of the edge-pressing bracket that presses the flexible display screen is relatively narrow. This makes the connection width of the elastic sealing strip within the edge-pressing bracket even narrower, resulting in limited connection strength between the elastic sealing strip and the edge-pressing bracket.

[0025] Furthermore, during the opening and closing of the bezel assembly, the flexible display screen unfolds and folds accordingly. During this process, the flexible display screen undergoes elastic deformation, contracting and expanding along its extension direction, causing it to rub against the edge support. This rubbing can scrape against the elastic sealing strip, making it prone to dislodging and potentially causing it to fail. This ultimately affects the quality of the bezel assembly and the user experience.

[0026] Based on this, in this embodiment, by adding a limiting structure to the inner surface of the pressure edge bracket, and positioning the limiting structure on one side of the second edge of the elastic sealing strip, and making it protrude relative to the inner surface of the pressing part, the limiting structure can directly limit the elastic sealing strip. Therefore, when the elastic sealing strip tends to detach from the pressure edge bracket along the second end of the pressing part due to being rubbed by the flexible display screen, the supporting effect of the limiting structure protruding from the inner surface of the pressing part can restrict the movement of the elastic sealing strip in the direction parallel to the pressing part, thereby weakening or even eliminating the aforementioned tendency to move. This effectively prevents the elastic sealing strip from detaching from the pressure edge bracket due to being rubbed by the flexible display screen, improving user experience and product quality.

[0027] In one possible implementation, the thickness of the body is greater than the thickness of the pressing part, and the limiting structure is a groove recessed on the inner surface of the body, with the bottom wall of the groove flush with the inner surface of the pressing part.

[0028] The elastic sealing strip includes a main body and an extension. The main body is connected to the inner surface of the pressing part. The main body includes a first side and a second side. The extension is connected to the first side and located in the groove, and is connected to the bottom wall of the groove.

[0029] Understandably, the thickness difference between the pressing part and the main body can create a stepped structure at the connection between them. This thickness difference not only facilitates the positioning of the main body during the assembly of the middle frame and the pressing edge bracket, thus enabling the insertion part connected to the main body to connect with the slot in the middle frame, but also allows the elastic sealing strip to press against the edge of the flexible display screen during the assembly of the pressing edge bracket with the elastic sealing strip, preventing the flexible display screen from slipping off during the opening and closing of the electronic device.

[0030] By creating a limiting structure through the groove recessed into the inner surface of the main body, a portion of the elastic sealing strip can be accommodated and limited using a material-reducing processing method like slotting. This effectively avoids the risk of scratching the flexible display screen caused by processing methods that involve adding material (such as adding protrusions), and enhances the connection reliability between the elastic sealing strip and the pressure edge bracket. Furthermore, making the bottom wall of the groove flush with the inner surface of the pressing part ensures good flatness of the surface in the pressure edge bracket that connects to the elastic sealing strip. This allows the elastic sealing strip to adhere more smoothly to the pressure edge bracket, improving the installation stability and reliability of the elastic sealing strip.

[0031] Furthermore, compared to a structure where the elastic sealing strip consists of only one part of the main body, the technical solution of this application, by additionally providing an extension and connecting the extension to the first side of the main body, effectively increases the area of ​​the extension portion of the elastic sealing strip. When the overall area of ​​the elastic sealing strip increases, its contact area with the pressure edge bracket also increases, which helps to improve the connection strength between the elastic sealing strip and the pressure edge bracket, ensuring the reliability of the connection between them.

[0032] In one possible implementation, the middle frame has a slot, and the pressing bracket further includes a plug portion located within the slot and connected to adjacent sides of the body, respectively, with the groove extending from the connection between the pressing portion and the body to the plug portion.

[0033] With this setup, the connection area for connecting with the elastic sealing strip in the pressure edge bracket can be increased as much as possible without affecting the connection reliability between the plug and the slot of the middle frame, thereby improving the connection strength between the pressure edge bracket and the elastic sealing strip.

[0034] In one possible implementation, the frame assembly further includes a limiting post located within the groove and protruding from the bottom wall of the groove, the limiting post passing through the extension.

[0035] It is understandable that by adding a limiting post in the groove and having the limiting post pass through the extension of the elastic sealing strip, the connection strength between the elastic sealing strip and the pressure plate bracket can be further increased, making the position of the elastic sealing strip stable and not easily changed.

[0036] In one possible implementation, the cross-sectional width of the groove along the direction parallel to the inner surface of the body gradually increases from one end toward the pressing portion toward the direction away from the pressing portion.

[0037] It is understandable that by making the width of the groove gradually change from the end facing the pressing part to the direction away from the pressing part, the width of the end of the extension set in the groove that connects to the main body is narrow, and the width of the end that extends into the groove away from the main body is wide. This makes it less likely for the extension to fall out of the groove when the main body is pulled by the flexible display screen, because part of the extension is blocked by the body of the pressing edge bracket near the groove. This helps to improve the problem of the elastic sealing strip coming off when the flexible display screen is rubbed relative to the pressing edge bracket, and improves the connection performance between the elastic sealing strip and the pressing edge bracket.

[0038] In one possible implementation, the groove includes a third end and a fourth end, the third end facing away from the pressing portion and the fourth end facing the pressing portion, and the extension length of the groove between the third end and the fourth end is greater than the straight-line distance between the third end and the fourth end.

[0039] It is understandable that by making the extension length of the groove between the third and fourth ends greater than the straight-line distance between the third and fourth ends, the extension direction of the extension portion set in the groove can be tilted to the extension direction of the main body. Thus, when the main body is pulled by the flexible display screen, the direction of the pulling force acting on the main body is tilted to the extension direction of the extension portion because the extension direction of the extension portion is tilted to the extension direction of the main body. This makes it less likely for the extension portion to be pulled off the groove, which helps to improve the problem of the elastic sealing strip coming off when the flexible display screen rubs against the pressure edge bracket, and improves the connection performance between the elastic sealing strip and the pressure edge bracket.

[0040] In one possible implementation, the limiting structure is a protrusion protruding from the inner surface of the pressing part, the elastic sealing strip has a positioning hole that penetrates the elastic sealing strip along its thickness direction, and the protrusion is located inside the positioning hole.

[0041] Understandably, by setting positioning holes in the elastic sealing strip and placing the limiting structure formed by the protrusion inside the positioning holes, a hole-shaft assembly method can be used to connect the limiting structure with the elastic sealing strip. This not only ensures the connection strength and stability between the elastic sealing strip pressure brackets, but also helps to improve the overall assembly efficiency and product quality of the frame assembly.

[0042] In one possible implementation, the limiting structure is a retaining wall protruding from the inner surface of the pressing part, the retaining wall is spaced apart from the elastic sealing strip, and the minimum distance between the retaining wall and the second end is less than the minimum distance between the elastic sealing strip and the second end.

[0043] It is understandable that by setting a retaining wall at the second end of the pressing part and making the limiting structure formed by the retaining wall located on the front side of the elastic sealing strip, the elastic sealing strip can be effectively restricted from detaching from the pressing edge bracket in the direction toward the second end of the pressing part, thus ensuring high reliability.

[0044] In one possible implementation, the elastic sealing strip includes at least two sub-segments, which are arranged sequentially along the circumferential direction of the pressing bracket, with a cutting gap formed between adjacent sub-segments, and the retaining wall located outside the cutting gap.

[0045] Understandably, the cut-off gap is a weak area in the elastic sealing strip that is prone to detaching from the pressure edge bracket. By setting the retaining wall on the outside of the cut-off gap, the location of the cut-off gap of the elastic sealing strip can be reinforced, so that the retaining wall can limit the elastic sealing strip and effectively solve the problem of the elastic sealing strip being prone to detaching from the pressure edge bracket, thus ensuring high reliability.

[0046] In one possible implementation, the height of the limiting structure is less than or equal to the working height of the elastic sealing strip, wherein the working height of the elastic sealing strip is the pressure height at which the elastic sealing strip connects to the pressing part and the flexible display screen.

[0047] With this configuration, the limiting structure can effectively restrict the movement of the elastic sealing strip while preventing the limiting structure from pressing against the flexible display screen due to excessive protrusion relative to the inner surface of the pressing part, thus ensuring high reliability.

[0048] In one possible implementation, the limiting structure is a mounting groove recessed on the inner surface of the pressing part, with part of the elastic sealing strip located in the mounting groove and part of the elastic sealing strip protruding relative to the inner surface of the pressing part.

[0049] Understandably, by setting the elastic sealing strip in the limiting structure formed by the mounting groove, the limiting structure and the elastic sealing strip can be connected together by an assembly method similar to hole shaft assembly. This not only ensures the connection strength and stability between the elastic sealing strip pressure bracket, but also helps to improve the overall assembly efficiency and product quality of the frame assembly.

[0050] In one possible implementation, the depth of the mounting groove is less than the working height of the elastic sealing strip, wherein the working height of the elastic sealing strip is the pressure height at which the elastic sealing strip connects to the pressing part and the flexible display screen.

[0051] With this setup, while the mounting groove restricts the movement of the elastic sealing strip, a portion of the elastic sealing strip can extend out of the mounting groove to connect with the flexible display screen. This allows the elastic sealing strip to press against the edge of the flexible display screen, resulting in high reliability.

[0052] In one possible implementation, the number of the limiting structures is multiple;

[0053] The plurality of limiting structures are spaced apart along the circumferential direction of the pressing bracket, or the plurality of limiting structures are spaced apart on opposite sides of the length direction of the pressing bracket, and are also located on both sides of the rotation center of the pressing bracket.

[0054] It is understood that in the technical solution of this application, when the frame assembly is folded or unfolded, the flexible display screen will open and close synchronously with the opening and closing action of the frame assembly. When the flexible display screen is bent, it undergoes elastic deformation and generates a corresponding elastic deformation force. Therefore, when the edge support switches from the unfolded state to the folded state, the flexible display screen will undergo elongation deformation along its extension direction under the action of the elastic deformation force. When the edge support switches from the folded state back to the unfolded state, the flexible display screen will undergo contraction deformation along its extension direction under the action of the elastic deformation force. That is, during the multiple folding and opening actions of the frame assembly, the flexible display screen will wobble relative to the edge support due to the "elongation-contraction-...-elongation" deformation cycle. Furthermore, since the edge support can be folded by folding left and right, the folding and opening action of the edge support affects the dimension of the edge support along its length. Therefore, the two opposite sides of the edge support along its length are the areas in the frame assembly where the flexible display screen has a large amount of rubbing. This area is the connection area between the elastic sealing strip and the edge support, and the weak point where the elastic sealing strip is prone to detach from the edge support.

[0055] Based on this, setting the limiting structure on both sides of the rotation center of the pressure edge bracket can specifically reinforce the weak points on the pressure edge bracket, preventing the elastic sealing strip from detaching from the pressure edge bracket due to the movement of the flexible display screen relative to the pressure edge bracket, thus preventing the elastic sealing strip from failing and ensuring the working reliability of the elastic sealing strip.

[0056] Secondly, this application also provides an electronic device, the electronic device including a flexible display screen and a frame assembly as described above, the flexible display screen being connected to the middle frame and connected to the side of the elastic sealing strip away from the pressing portion.

[0057] In one possible implementation, the electronic device is a foldable device. Attached Figure Description

[0058] Figure 1 is a schematic diagram of the structure of an electronic device provided in an embodiment of this application when it is in a folded state;

[0059] Figure 2 is a schematic diagram of the structure of the electronic device shown in Figure 1 when it is in an intermediate state;

[0060] Figure 3 is a schematic diagram of the electronic device shown in Figure 1 when it is in the unfolded state;

[0061] Figure 4 is a simplified schematic diagram of the structure of the electronic device provided in an embodiment of this application;

[0062] Figure 5 is an exploded view of part of the structure of the electronic device shown in Figure 4;

[0063] Figure 6 is a simplified cross-sectional view of a partial structure of an electronic device obtained by cutting along the cutting line AA shown in Figure 4.

[0064] Figure 7 is a partial structural schematic diagram of the border component according to the first embodiment of this application;

[0065] Figure 8 is an exploded view of the border component shown in Figure 7;

[0066] Figure 9a is a partial structural diagram of an angle of the first embodiment of the edge clamping bracket of the frame assembly shown in Figure 7.

[0067] Figure 9b is a partial structural schematic diagram of the first embodiment of the edge clamping bracket of the frame assembly shown in Figure 8 from another angle.

[0068] Figure 9c is a partial structural diagram of the first embodiment of the edge clamping bracket of the frame assembly shown in Figure 7 from another angle.

[0069] Figure 10a is a structural schematic diagram of an angle of the first embodiment of the assembly of the edge support bracket and the elastic sealing strip of the frame assembly shown in Figure 7;

[0070] Figure 10b is a structural schematic diagram from another angle of the first embodiment of the frame assembly shown in Figure 8, which is assembled with the edge support bracket and the elastic sealing strip.

[0071] Figure 11a is a structural schematic diagram from one angle of the second embodiment of the assembly of the edge support bracket and the elastic sealing strip of the frame assembly shown in Figure 7;

[0072] Figure 11b is a structural schematic diagram from another angle of the second embodiment of the assembly of the edge support bracket and the elastic sealing strip of the frame assembly shown in Figure 7;

[0073] Figure 12a is a structural schematic diagram of a third embodiment of the assembly of the edge support bracket and the elastic sealing strip of the frame assembly shown in Figure 7 from one angle.

[0074] Figure 12b is a structural schematic diagram from another angle of the third embodiment of the assembly of the edge support bracket and the elastic sealing strip of the frame assembly shown in Figure 7;

[0075] Figure 13 is a structural schematic diagram from one angle of the fourth embodiment of the assembly of the edge support bracket and the elastic sealing strip of the frame assembly shown in Figure 7;

[0076] Figure 14 is a partial structural schematic diagram of the edge clamping bracket of the frame assembly according to the second embodiment of this application;

[0077] Figure 15 is a partial structural diagram of the assembly of the edge support bracket and the elastic sealing strip of the frame assembly according to the second embodiment of this application;

[0078] Figure 16 is a schematic diagram of another partial structure of the edge support bracket and elastic sealing strip assembly of the frame assembly according to the second embodiment of this application;

[0079] Figure 17 is a partial structural schematic diagram of the edge clamping bracket of the frame assembly according to the third embodiment of this application;

[0080] Figure 18 is a partial structural diagram of the assembly of the edge support bracket and the elastic sealing strip of the frame assembly according to the third embodiment of this application;

[0081] Figure 19 is a partial structural schematic diagram of the edge clamping bracket of the frame assembly according to the fourth embodiment of this application;

[0082] Figure 20 is a partial structural schematic diagram of the assembly of the edge support bracket and the elastic sealing strip of the frame assembly according to the fourth embodiment of this application;

[0083] Figure 21 is a schematic diagram of another partial structure of the edge support bracket and elastic sealing strip assembly of the frame assembly according to the fourth embodiment of this application;

[0084] Figure 22a is a partial structural diagram of the edge support bracket and the elastic sealing strip of the frame assembly according to the fourth embodiment of this application at one angle.

[0085] Figure 22b is a schematic diagram of another partial structure of the edge support bracket and the elastic sealing strip of the frame assembly according to the fourth embodiment of this application at one angle. Detailed Implementation

[0086] For ease of understanding, the terminology used in the embodiments of this application will be explained first.

[0087] And / or: This is simply a way of describing the relationship between related objects. It indicates that there can be three kinds of relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0088] Multiple: refers to two or more.

[0089] Connection: should be interpreted broadly. For example, the connection between A and B can be a direct connection between A and B, or an indirect connection between A and B through an intermediary.

[0090] The specific embodiments of this application will now be clearly described in conjunction with the accompanying drawings.

[0091] Embodiments of this application provide a frame assembly and an electronic device. The electronic device can be any device with foldable capabilities (also referred to as a foldable device), capable of unfolding and closing under user operation. The electronic device includes, but is not limited to, mobile phones, laptops, tablets, laptops, handheld game consoles, personal digital assistants, wearable devices, or in-vehicle devices.

[0092] Understandably, when an electronic device is foldable, it can be categorized into inward-folding and outward-folding devices. An inward-folding device refers to one where, when folded, the display screen is located inside the device and cannot be seen by the user. When unfolded, the display screen is visible and can be viewed by the user. An outward-folding device refers to one where, when folded, the display screen is located on the outside of the device and can be viewed by the user.

[0093] The following description will use an inward-folding mobile phone as an example. Of course, in other embodiments, the electronic device may also include, but is not limited to, an outward-folding mobile phone, a tablet computer, a handheld game console, an e-reader, a wearable device, etc., and there is no strict limitation on this.

[0094] Please refer to Figures 1, 2, and 3. Figure 1 is a structural schematic diagram of the electronic device 200 provided in this embodiment when it is in a folded state; Figure 2 is a structural schematic diagram of the electronic device 200 shown in Figure 1 when it is in an intermediate state; and Figure 3 is a structural schematic diagram of the electronic device 200 shown in Figure 1 when it is in an unfolded state. In Figure 2, the unfolding angle α of the electronic device 200 is approximately 120 degrees; of course, α can also be other angles. In Figure 3, the unfolding angle β of the electronic device 200 is approximately 180 degrees.

[0095] The electronic device 200 may have at least two states: an unfolded state and a folded state. In some cases, the electronic device 200 may further include a third state, namely an intermediate state between the unfolded state and the folded state. The intermediate state can be any one or more states between the unfolded state and the folded state. That is, under different usage requirements, the electronic device 200 can be unfolded to the unfolded state, folded to the folded state, or in an intermediate state between the unfolded and folded states.

[0096] In this embodiment, the electronic device 200 is capable of being folded once. In other embodiments, the electronic device 200 may also be capable of being folded multiple times (more than twice). In this case, the electronic device 200 may include multiple parts, with adjacent parts folding relatively close together to the folded state of the electronic device 200, and adjacent parts unfolding relatively far apart to the unfolded state of the electronic device 200.

[0097] The following explanation will use the example of an electronic device 200 that adopts a left-right folding design, enabling it to fold in half horizontally. However, it should be understood that in other embodiments, the electronic device 200 may also adopt a top-bottom folding design, enabling it to fold in half vertically.

[0098] Please refer to Figures 4 and 5. Figure 4 is a simplified structural diagram of the electronic device 200 provided in an embodiment of this application, and Figure 5 is an exploded view of part of the structure of the electronic device 200 shown in Figure 4. Figures 4 and 5, as well as the related figures below, only schematically show some components included in the electronic device 200. The actual shape, size, location, and construction of these components are not limited by Figures 4 and 5, or the figures below.

[0099] For ease of description, the length direction of the electronic device 200 is defined as the X direction, the width direction as the Y direction, and the thickness direction as the Z direction. The X, Y, and Z directions are all perpendicular to each other.

[0100] Electronic device 200 may include a flexible display screen 210 and a housing 220. The flexible display screen 210 can be mounted on the housing 220 and is used to display information and provide an interactive interface for the user. The housing 220 may have a receiving cavity W and a slot H. The slot H can connect the receiving cavity W and the external space of the electronic device 200, exposing at least a portion of the flexible display screen 210, thereby enabling the user to see the information displayed on the flexible display screen 210 and perform corresponding touch operations on the information displayed on the flexible display screen 210. The housing 220 can provide a mounting base for the electronic components and structural components of the electronic device 200, such as the flexible display screen 210, circuit boards, and motherboards, and also serves to protect these components.

[0101] Both the flexible display screen 210 and the housing 220 can be foldable components capable of opening and closing. It should be understood that the following description uses the housing 220 in a foldable electronic device 200 as an example; however, structural improvements to the housing 220 can also be applied to non-foldable electronic devices 200 without conflict, and the embodiments of this application do not impose strict limitations on this.

[0102] Please refer to Figures 4 and 6. Figure 6 is a simplified cross-sectional view of a portion of the electronic device 200 obtained by cutting along the section line AA shown in Figure 4. In Figure 6, the housing 220 and the flexible display screen 210 are shown for illustrative purposes only and do not represent the actual structure of the housing 220 and the flexible display screen 210.

[0103] The flexible display screen 210 can unfold and fold accordingly in response to the opening and closing action of the housing 220. For example, the flexible display screen 210 can be an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode (MLED) display screen, a micro organic light-emitting diode (MOLED) display screen, or a quantum dot light-emitting diode (QLED) display screen.

[0104] The flexible display screen 210 can be an inward-folding screen, meaning that when the electronic device 200 is in a folded state, the flexible display screen 210 can be sandwiched within the housing 220. Alternatively, the flexible display screen 210 can be a foldable flexible screen throughout, or it can be a combination of a foldable flexible screen in the middle area and rigid screens at both ends; there are no strict limitations on this.

[0105] Specifically, the flexible display screen 210 may include a first part 2110, a second part 2120 and a foldable part 2130. The foldable part 2130 of the flexible display screen 210 is connected between the first part 2110 and the second part 2120 of the flexible display screen 210 and can be bent to accommodate the unfolding and folding of the electronic device 200.

[0106] The flexible display screen 210 may further include a display area A1 and a non-display area A2. The non-display area A2 is located around and connected to the display area A1. The display area A1 of the flexible display screen 210 is the area within the flexible display screen 210 capable of displaying images, while the non-display area A2 is the area within the flexible display screen 210 where images cannot be displayed. The first portion 2110, the second portion 2120, and the foldable portion 2130 of the flexible display screen 210 can all extend from the display area A1 to the non-display area A2. That is, a portion of the first portion 2110, a portion of the second portion 2120, and a portion of the foldable portion 2130 can collectively constitute the display area A1, and another portion of the first portion 2110, another portion of the second portion 2120, and another portion of the foldable portion 2130 can collectively constitute the non-display area A2.

[0107] The display area A1 of the flexible display screen 210 can be exposed through the slot H of the housing 220, while the non-display area A2 of the flexible display screen 210 can be located within the receiving cavity W of the housing 220. In this configuration, the outline of the display surface of the display area A1 is the same as the outline of the outer surface of the flexible display screen 210, and the non-display area A2, which does not require display, can be used to connect to the housing 220. Since no other structures occupy the display space except for the display area A1, the entire surface of the flexible display screen 210 exposed to the external environment can display images. This allows the electronic device 200 using the flexible display screen 210 to achieve full-screen display on the front of the electronic device 200, thereby making ultra-narrow bezels or even bezel-less a reality.

[0108] Referring again to Figures 4 and 5, the housing 220 may include a first sub-housing 2210, a second sub-housing 2220, and a rotating mechanism (not shown). The rotating mechanism connects the first sub-housing 2210 and the second sub-housing 2220 to achieve a rotatable connection between them. The first sub-housing 2210 and the second sub-housing 2220 can rotate relative to each other via the rotating mechanism, allowing the electronic device 200 to switch between a folded state, an intermediate state, and an unfolded state, and to remain in a closed or unfolded state to meet the user's needs in different scenarios. The receiving cavity W and the slot H of the housing 220 can be formed jointly by the first sub-housing 2210 and the second sub-housing 2220. The first portion 2110 of the flexible display screen 210 is connected to the first sub-housing 2210, and the second portion 2120 of the flexible display screen 210 is connected to the second sub-housing 2220. The foldable portion 2130 of the flexible display screen 210 is arranged opposite to the rotating mechanism in the Z direction. The flexible display screen 210 can be unfolded or folded by the first sub-shell 2210, the second sub-shell 2220 and the rotating mechanism.

[0109] Specifically, as shown in Figure 1, the relative rotation of the first sub-shell 2210 and the second sub-shell 2220 to put the electronic device 200 into a folded state means that the first sub-shell 2210 and the second sub-shell 2220 rotate through a rotating mechanism and come close to each other until they are in contact. When the electronic device 200 is in the folded state, the flexible display screen 210 is sandwiched between the first sub-shell 2210 and the second sub-shell 2220, and the foldable portion 2130 of the flexible display screen 210 is bent. The first portion 2110 and the second portion 2120 of the flexible display screen 210 are positioned opposite each other. The electronic device 200 has a smaller size, making it easier for users to store and carry.

[0110] As shown in Figure 2, the relative rotation of the first sub-shell 2210 and the second sub-shell 2220 to bring the electronic device 200 to an intermediate state means that the first sub-shell 2210 and the second sub-shell 2220 rotate through a rotating mechanism and move away from each other, causing the included angle between the first sub-shell 2210 and the second sub-shell 2220 to increase; or, the first sub-shell 2210 and the second sub-shell 2220 rotate through a rotating mechanism and move closer to each other, causing the included angle between the first sub-shell 2210 and the second sub-shell 2220 to decrease. At this time, the foldable portion 2130 of the flexible display screen 210 still bends, but the bending amplitude of the foldable portion 2130 in the intermediate state is less than the bending amplitude of the foldable portion 2130 in the folded state.

[0111] As shown in Figure 3, the relative rotation of the first sub-shell 2210 and the second sub-shell 2220 puts the electronic device 200 in an unfolded state. This means that the first sub-shell 2210 and the second sub-shell 2220 rotate through a rotating mechanism and move away from each other, with the included angle between them continuing to increase, approaching or equaling 180 degrees (within the allowable tolerance range). At this time, the foldable portion 2130 of the flexible display screen 210 is flattened, and the first portion 2110 and the second portion 2120 of the flexible display screen 210 are unfolded relative to each other. The electronic device 200 can achieve large-screen display, providing users with richer information and a better user experience.

[0112] Referring to Figures 4 and 5, the housing 220 may include a frame assembly 100 and a back cover 110. The back cover 110 is connected to one side of the frame assembly 100, and the flexible display screen 210 is connected to the other side of the frame assembly 100. The back cover 110 and the flexible display screen 210 are arranged opposite each other in the Z direction. The frame assembly 100 may include two sub-frame assemblies arranged side-by-side. The structures of the two sub-frame assemblies may be identical or different. The back cover 110 may include two sub-back covers arranged side-by-side. The structures of the two sub-back covers may be identical or different. One sub-frame assembly and one sub-back cover are connected to form the first sub-housing 2210 described above, and the other sub-frame assembly and the other sub-back cover are connected to form the second sub-housing 2220 described above. The structures of the first sub-housing 2210 and the second sub-housing 2220 may be identical or different. The compositional relationship between the frame assembly 100 and the rear cover 110 and the first sub-shell 2210 and the second sub-shell 2220 will not be described in detail below. However, it should be understood that at least a portion of the structure in the frame assembly 100 and the rear cover 110 each consist of two parts. A portion of the frame assembly 100 and a portion of the rear cover 110 constitute the first sub-shell 2210, and another portion of the frame assembly 100 and another portion of the rear cover 110 constitute the second sub-shell 2220.

[0113] The structure of the border component 100 will be described in detail below through four specific embodiments.

[0114] First embodiment:

[0115] Please refer to Figures 7 and 8. Figure 7 is a simplified schematic diagram of a portion of the frame component 100 according to the first embodiment of this application, and Figure 8 is an exploded schematic diagram of the frame component 100 shown in Figure 7. In Figures 7 and 8, for ease of illustration, only a small part of each structure in the frame component 100 is shown, and they do not represent the actual shape of each structure in the frame component 100.

[0116] The frame assembly 100 may include a middle frame 10, a pressing edge bracket 20, an elastic sealing strip 30, and a limiting structure (not shown). One side of the middle frame 10 is connected to the flexible display screen 210, and the other side of the middle frame 10 is connected to the back cover 110. The middle frame 10 is used to support the flexible display screen 210 and to protect it. The pressing edge bracket 20 (also referred to as a small A-shell) is connected to the side of the middle frame 10 where the flexible display screen 210 is fixed, and is arranged around the outer edge of the middle frame 10 in the circumferential direction, wherein the circumferential direction of the middle frame 10 is the direction around the central axis of the middle frame 10. The edge-pressing bracket 20 is also pressed against the top of the flexible display screen 210 by an elastic sealing strip 30. The side of the elastic sealing strip 30 away from the edge-pressing bracket 20 is connected to the flexible display screen 210, serving to press the edge of the flexible display screen 210, protect the edge of the flexible display screen 210, ensure the seal between the edge-pressing bracket 20 and the flexible display screen 210, and prevent dust from entering the interior of the electronic device 200 through the gap between the flexible display screen 210 and the edge-pressing bracket 20. A limiting structure is connected to the inner surface 201 of the edge-pressing bracket 20 and located at the outer edge of the elastic sealing strip 30, preventing the elastic sealing strip 30 from detaching.

[0117] The middle frame 10, the edge support 20, the elastic sealing strip 30, and the limiting structure all include a part located in the first sub-shell 2210 and another part located in the second sub-shell 2220. The following improvements to each structure in the frame assembly 100 can be applied to the first sub-shell 2210 and / or the second sub-shell 2220 without conflict.

[0118] Referring to Figures 7 and 8, the middle frame 10 may have a slot 11. The opening of the slot 11 is located on the surface of the middle frame 10 facing the pressing edge bracket 20. The slot 11 may extend from the surface of the middle frame 10 facing the pressing edge bracket 20 away from the pressing edge bracket 20 and be arranged around the circumference of the middle frame 10. The slot 11 is used to connect with the insertion part 22 of the pressing edge bracket 20 to achieve a fixed connection between the middle frame 10 and the pressing edge bracket 20. The slot 11 may be located near the outer edge of the middle frame 10 to avoid occupying the space required for other structures on the middle frame 10. Of course, in other embodiments, the middle frame 10 may not have a slot 11, and the pressing edge bracket 20 may not have an insertion part 22; instead, the middle frame 10 may be directly connected to the pressing edge bracket 20.

[0119] In this embodiment, the elastic sealing strip 30 is connected to the inner surface 201 of the pressing bracket 20. The elastic sealing strip 30 is arranged around the circumferential direction of the pressing bracket 20 and presses against the outer edge of the flexible display screen 210. The inner surface 201 of the pressing bracket 20 is the surface of the pressing bracket 20 facing the flexible display screen 210, and the circumferential direction of the pressing bracket 20 is the direction surrounding the central axis of the pressing bracket 20. By providing the elastic sealing strip 30, rigid collisions between the flexible display screen 210 and the pressing bracket 20 can be effectively avoided, providing good buffering and sealing effects.

[0120] The elastic sealing strip 30 can be a structural component with good elasticity and adhesion properties. It can be bonded to the pressure edge bracket 20, compresses under pressure and undergoes elastic deformation, and rebounds after the pressure is removed. After the frame assembly 100 and the flexible display screen 210 are assembled, the thickness of the elastic sealing strip 30 connecting the pressure edge bracket 20 and the flexible display screen 210 can be the thickness of the elastic sealing strip 30 when it is in a compressed state (i.e., the pressure height of the elastic sealing strip 30), which is also the working height of the elastic sealing strip 30 as described below. For example, the elastic sealing strip 30 can be a foam adhesive layer. Of course, the elastic sealing strip 30 can be replaced with other types of materials with similar functions, and there are no strict limitations on this.

[0121] In this embodiment, the elastic sealing strip 30 may include a main body 31 and an extension 32. The main body 31 may include a first side 301 and a second side 302. The first side 301 and the second side 302 of the main body 31 may be arranged opposite to each other in the width direction (i.e., the X direction shown in FIG8). One end of the extension 32 is connected to the first side 301 of the main body 31, and the other end of the extension 32 extends away from the main body 31. The extension direction of the extension 32 intersects the extension direction of the main body 31, and the extension 32 may be used to be disposed in the limiting structure of the pressure plate bracket 20.

[0122] The number of extensions 32 can be the same as the number of limiting structures of the pressure plate bracket 20, which can be one or more. When both the number of extensions 32 and the number of limiting structures of the pressure plate bracket 20 are multiple, it is only necessary to satisfy that one extension 32 is located in one limiting structure of the pressure plate bracket 20.

[0123] It is understandable that, compared to a structure where the elastic sealing strip 30 consists of only the main body 31, this embodiment, by additionally providing an extension 32 and connecting the extension 32 to the first side 301 of the main body 31, effectively increases the area of ​​the extension 32 portion of the elastic sealing strip 30. When the overall area of ​​the elastic sealing strip 30 increases, its contact area with the pressure edge bracket 20 also increases, which helps improve the connection strength between the elastic sealing strip 30 and the pressure edge bracket 20, ensuring the reliability of the connection between them.

[0124] In one possible implementation, as shown in Figures 7 and 8, the elastic sealing strip 30 may include an adhesive layer 33 and foam 34 stacked together. A portion of the adhesive layer 33 and a portion of the foam 34 together constitute the body 31 of the elastic sealing strip 30, and another portion of the adhesive layer 33 and another portion of the foam 34 together constitute the extension 32 of the elastic sealing strip 30.

[0125] The adhesive layer 33 can be any adhesive material with good adhesion, and it can be attached to the inner surface 201 of the edge-pressing bracket 20 to fix the foam 34 to the edge-pressing bracket 20. When the frame assembly 100 is assembled with the flexible display screen 210, the flexible display screen 210 can be positioned opposite the adhesive layer 33 in the Z direction. The adhesive layer 33 can have a certain amount of compression, that is, the adhesive layer 33 has a certain deformation along its thickness direction (i.e., the Z direction). In other words, the adhesive layer 33 has a compressed state and a natural state. After the frame assembly 100 and the flexible display screen 210 are assembled, the thickness of the adhesive layer 33 connecting the edge-pressing bracket 20 and the foam 34 can be the thickness of the adhesive layer 33 in the compressed state, that is, the working height of the adhesive layer 33. For example, the adhesive layer 33 can be an adhesive backing. The thickness of the adhesive layer 33 in the compressed state can be less than the thickness of the adhesive layer 33 in the natural state.

[0126] Foam 34 is connected to the adhesive layer 33 on the side facing away from the pressure plate bracket 20. When the frame assembly 100 is assembled with the flexible display screen 210, foam 34 is located between the pressure plate bracket 20 and the flexible display screen 210, and the flexible display screen 210 can be positioned opposite to foam 34 in the Z direction. Foam 34 can have a certain amount of compression, that is, foam 34 has a certain deformation along its thickness direction (i.e., the Z direction). In other words, foam 34 has a compressed state and a natural state. After the frame assembly 100 and the flexible display screen 210 are assembled, the thickness of foam 34 connecting the adhesive layer 33 and the flexible display screen 210 can be the thickness of foam 34 in the compressed state, that is, the working height of foam 34. For example, the thickness of foam 34 in the compressed state can be less than the thickness of foam 34 in the natural state.

[0127] Please refer to Figures 9a, 9b, and 9c. Figure 9a is a partial structural diagram of the edge-pressing bracket 20 of the frame assembly 100 shown in Figure 7 from one angle; Figure 9b is a partial structural diagram of the edge-pressing bracket 20 of the frame assembly 100 shown in Figure 8 from another angle; and Figure 9c is a partial structural diagram of the edge-pressing bracket 20 of the frame assembly 100 shown in Figure 7 from yet another angle. The edge-pressing bracket 20 may include a body 21, a plug-in portion 22, and a pressing portion 23.

[0128] In this embodiment, the body 21 of the pressing bracket 20 can be arranged around the circumference of the pressing bracket 20. The body 21 of the pressing bracket 20 is arranged opposite to the middle frame 10 in the opposite direction of the Z direction and is used to connect with the middle frame 10. The body 21 of the pressing bracket 20 may include a first connecting surface 211 and a second connecting surface 212. The first connecting surface 211 of the body 21 is the surface of the body 21 facing the middle frame 10, and it can be parallel to the XY plane. The second connecting surface 212 of the body 21 is arranged adjacent to the first connecting surface 211 of the body 21, and it can be perpendicular to the XY plane or arranged at an angle to the XY plane.

[0129] One end of the insertion portion 22 of the edge pressing bracket 20 is connected to the first connecting surface 211 of the body 21, and the other end of the insertion portion 22 of the edge pressing bracket 20 extends away from the body 21. The insertion portion 22 of the edge pressing bracket 20 can be arranged around the edge pressing bracket 20 in the circumferential direction and can be arranged close to the outer edge of the edge pressing bracket 20. The shape of the insertion portion 22 of the edge pressing bracket 20 can be adapted to the shape of the slot 11 of the middle frame 10 for connection with the slot 11 of the middle frame 10. After the edge pressing bracket 20 and the middle frame 10 are assembled, the insertion portion 22 of the edge pressing bracket 20 can be located in the slot 11 of the middle frame 10 to achieve a fixed connection between the edge pressing bracket 20 and the middle frame 10.

[0130] The assembly process of the edge-pressing bracket 20 and the middle frame 10 may include at least the following steps:

[0131] First, apply adhesive to the slot 11 inside the mid-frame 10.

[0132] Next, the insertion part 22 of the pressing bracket 20 is snapped into the slot 11 of the middle frame 10.

[0133] Subsequently, pressure is applied to the edge-pressing bracket 20 and the middle frame 10 until the adhesive cures, completing the assembly of the middle frame 10 and the edge-pressing bracket 20. Applying pressure to the edge-pressing bracket 20 and the middle frame 10 involves using an external pressure-holding fixture to compress the edge-pressing bracket 20 and the middle frame 10, thereby compressing them and improving the adhesive bonding effect. This prevents gaps and adhesive failure at the joint between the edge-pressing bracket 20 and the middle frame 10, ensuring they are firmly bonded together and not easily detached.

[0134] Of course, in other embodiments, the slot 11 can be provided on the edge pressing bracket 20, and the plug-in part 22 can be provided on the middle frame 10. Alternatively, the edge pressing bracket 20 may not include the plug-in part 22, and the middle frame 10 may not include the slot 11. The middle frame 10 and the edge pressing bracket 20 can be fixed by means such as welding or screwing. This embodiment does not strictly limit the connection method between the middle frame 10 and the edge pressing bracket 20.

[0135] In this embodiment, the pressing portion 23 of the pressing bracket 20 includes a first end 231 and a second end 232. The first end 231 and the second end 232 of the pressing portion 23 are disposed opposite each other in the width direction (i.e., the X direction shown in FIG. 9a). The first end 231 of the pressing portion 23 is connected to the second connecting surface 212 of the body 21, and the second end 232 of the pressing portion 23 extends away from the body 21. By connecting the pressing portion 23 and the insertion portion 22 to adjacent sides of the body 21 respectively, the pressing bracket 20 can be made to have an approximately "L" shape.

[0136] A portion of the outer surface of the pressing portion 23 may be flush with a portion of the outer surface of the body 21. This means that a portion of the outer surface of the pressing portion 23 may be coplanar with a portion of the outer surface of the body 21, or that the distance difference between the portion of the outer surface of the pressing portion 23 and the portion of the outer surface of the body 21 is within an acceptable error range. Furthermore, the thickness of the pressing portion 23 (i.e., the dimension of the pressing portion 23 along the Z direction) may be less than the thickness of the body 21 (i.e., the thickness of the body 21 along the Z direction).

[0137] Understandably, the thickness difference between the pressing part 23 and the body 21 can create a stepped structure at the connection between the pressing part 23 and the body 21. This thickness difference not only facilitates the positioning of the body 21 during the assembly of the middle frame 10 and the pressing edge bracket 20, thus enabling the insertion part 22 connected to the body 21 to connect with the slot 11 of the middle frame 10, but also allows the elastic sealing strip 30 to press against the edge of the flexible display screen 210 during the assembly of the pressing edge bracket 20 with the elastic sealing strip 30 and the flexible display screen 210, preventing the flexible display screen 210 from slipping off during the opening and closing of the electronic device 200.

[0138] After the edge support bracket 20 is assembled with the middle frame 10 and the flexible display screen 210, the pressing part 23 of the edge support bracket 20 is not only arranged opposite to part of the middle frame 10 in the thickness direction (i.e., the Z direction) of the frame assembly 100, but also opposite to part of the display screen (such as the non-display area A2 of the display screen) in the thickness direction of the frame assembly 100.

[0139] Referring to Figures 9b and 9c, the limiting structure 40 is disposed on the inner surface 201 of the pressing edge bracket 20. The number of limiting structures 40 can be the same as the number of extensions 32 of the elastic sealing strip 30, and can be one or more. Each limiting structure 40 is used to accommodate one extension 32 of the elastic sealing strip 30. When there is only one limiting structure 40, it can be arranged around the entire circumference of the pressing edge bracket 20. Alternatively, it can be located on any one or more of the four sides of the pressing edge bracket 20 (i.e., opposite sides in the length direction and opposite sides in the width direction). When there are multiple limiting structures 40, they can be spaced apart in the circumferential direction of the pressing edge bracket 20. For example, multiple limiting structures 40 can be distributed on opposite sides in the length direction (i.e., opposite sides in the X direction) and opposite sides in the width direction (i.e., opposite sides in the Y direction). Alternatively, the multiple limiting structures 40 may be distributed only on opposite sides of the length direction of the pressure plate bracket 20, and also located on both sides of the rotation center of the pressure plate bracket 20.

[0140] It is understood that in this embodiment, when the frame assembly 100 is folded or unfolded, the flexible display screen 210 will open and close synchronously with the frame assembly 100. When the flexible display screen 210 is bent, it undergoes elastic deformation and generates a corresponding elastic deformation force. Therefore, when the edge support 20 switches from the unfolded state to the folded state, the flexible display screen 210 will undergo elongation deformation along its extension direction under the action of the elastic deformation force. When the edge support 20 switches from the folded state back to the unfolded state, the flexible display screen 210 will undergo contraction deformation along its extension direction under the action of the elastic deformation force. That is, during the multiple folding and unfolding actions of the frame assembly 100, the flexible display screen 210 will rub against the edge support 20 due to the "elongation-contraction-...-elongation" deformation cycle. Furthermore, since the edge-pressing bracket 20 can be folded by folding it left and right, the folding and opening action of the edge-pressing bracket 20 affects the dimension of the edge-pressing bracket 20 along the X direction. Therefore, the opposite sides of the edge-pressing bracket 20 along its length are the locations in the frame assembly 100 where the flexible display screen 210 has a larger amount of rubbing. These locations are the connection areas between the elastic sealing strip 30 and the edge-pressing bracket 20, and are the weak points where the elastic sealing strip 30 is prone to detach from the edge-pressing bracket 20.

[0141] Based on this, the limiting structure 40 is set on both sides of the rotation center of the pressure edge bracket 20, which can specifically reinforce the weak parts of the pressure edge bracket 20, and prevent the elastic sealing strip 30 from being pulled off the pressure edge bracket 20 by the flexible display screen 210 during the rubbing process relative to the pressure edge bracket 20, thus preventing the elastic sealing strip 30 from failing. This helps to ensure the working reliability of the elastic sealing strip 30.

[0142] It should be noted that the shape, length, width, thickness, location, number, and spacing of the limiting structure 40 can be selected according to the specific application scenario. As long as it can prevent the elastic sealing strip 30 from falling off the pressure bracket 20 and from pressing the flexible display screen 210, this embodiment does not impose strict restrictions on this.

[0143] The following description will focus on the specific structure of one limiting structure 40. Unless otherwise specified, the description of one limiting structure 40 can be applied to other limiting structures 40.

[0144] Please refer to Figures 9b and 9c. In this embodiment, the limiting structure 40 can be a groove 41 recessed into the inner surface of the body 21. The opening of the groove 41 can be located on the inner surface of the body 21, and the bottom wall 411 of the groove 41 can be flush with the inner surface 233 of the pressing part 23. The groove 41 can be used to accommodate the extension 32 of the elastic sealing strip 30. The inner surface of the body 21 is the surface of the body 21 facing the middle frame 10, and the inner surface 233 of the pressing part 23 can be the surface of the pressing part 23 facing the middle frame 10. The fact that the bottom wall 411 of the groove 41 can be flush with the inner surface 233 of the pressing part 23 means that the bottom wall 411 of the groove 41 can be coplanar with the inner surface 233 of the pressing part 23, or that the distance difference between the bottom wall 411 of the groove 41 and the inner surface 233 of the pressing part 23 is within an allowable error range.

[0145] Understandably, by forming a limiting structure 40 in the groove 41 recessed on the inner surface of the body 21, a portion of the elastic sealing strip 30 can be accommodated and limited through a material-reducing processing method such as grooving. This effectively avoids the risk of scratching the flexible display screen 210 caused by processing methods that involve adding material (such as adding protrusions), and helps to enhance the connection reliability between the elastic sealing strip 30 and the pressure bracket 20. In addition, by making the bottom wall 411 of the groove 41 flush with the inner surface 233 of the pressing part 23, the surface of the pressure bracket 20 that connects with the elastic sealing strip 30 can have good flatness, allowing the elastic sealing strip 30 to be more flat when attached to the pressure bracket 20, which helps to improve the installation stability and reliability of the elastic sealing strip 30.

[0146] In one possible implementation, as shown in Figures 9b and 9c, the groove 41 can extend from the connection between the pressing part 23 and the body 21 to the insertion part 22. With this arrangement, the connection area in the pressing bracket 20 for connection with the elastic sealing strip 30 can be increased as much as possible without affecting the reliability of the connection between the insertion part 22 and the slot 11 of the middle frame 10, thereby improving the connection strength between the pressing bracket 20 and the elastic sealing strip 30.

[0147] Of course, in other embodiments, the groove 41 may not extend to the insertion part 22, but may have a certain distance from the insertion part 22. This embodiment does not strictly limit this.

[0148] Please refer to Figures 10a and 10b. Figure 10a is a structural schematic diagram from one angle of the first embodiment of the assembly of the edge support 20 and the elastic sealing strip 30 of the frame assembly 100 shown in Figure 7. Figure 10b is a structural schematic diagram from another angle of the first embodiment of the assembly of the edge support 20 and the elastic sealing strip 30 of the frame assembly 100 shown in Figure 8.

[0149] When the elastic sealing strip 30 is installed onto the pressing bracket 20, the first side 301 of the elastic sealing strip 30 faces the first end 231 of the pressing part 23 and is disposed on the same side as the first end 231 of the pressing part 23. The second side 302 of the elastic sealing strip 30 faces the second end 232 of the pressing part 23 and is disposed on the same side as the second end 232 of the pressing part 23. The limiting structure 40 (i.e., the groove 41) is close to the first end 231 of the pressing part 23 and is located on one side of the first side 301 of the elastic sealing strip 30. The elastic sealing strip 30 is connected to the inner surface 201 of the pressing bracket 20, with part of the elastic sealing strip 30 located in the limiting structure 40 and part of the elastic sealing strip 30 located outside the limiting structure 40.

[0150] Understandably, in the frame assembly 100, the edge-pressing bracket 20 is used to press the four edges of the flexible display screen 210. To prevent the flexible display screen 210 from being damaged due to a rigid collision between the edge-pressing bracket 20 and the flexible display screen 210, an elastic sealing strip 30 needs to be set between the edge-pressing bracket 20 and the flexible display screen 210. This allows the edge-pressing bracket 20 to press the edge of the flexible display screen 210 through the elastic sealing strip 30, achieving functions such as fixing and dust prevention between the edge-pressing bracket 20 and the flexible display screen 210. However, under normal circumstances, the width of the part of the edge-pressing bracket 20 that presses the flexible display screen 210 is relatively narrow. This makes the connection width of the elastic sealing strip 30 in the edge-pressing bracket 20 even narrower, resulting in limited connection strength between the elastic sealing strip 30 and the edge-pressing bracket 20.

[0151] Furthermore, during the opening and closing of the bezel assembly 100, the flexible display screen 210 unfolds and folds accordingly. During this unfolding and folding process, the flexible display screen 210 undergoes elastic deformation, contracting and elongating along its extension direction, causing it to rub against the edge support 20. This rubbing against the edge support 20 can cause the elastic sealing strip 30 to rub against it, making it prone to detachment from the edge support 20 and causing it to fail. This affects the quality of the bezel assembly 100 and the user experience.

[0152] Based on this, in this embodiment, by adding a limiting structure 40 to the inner surface 201 of the pressing bracket 20 and positioning the limiting structure 40 on one side of the first side 301 of the elastic sealing strip 30, the limiting structure 40 can be positioned further away from the second end 232 of the pressing part 23 compared to the elastic sealing strip 30. That is, the limiting structure 40 is generally located on the rear side of the elastic sealing strip 30. Furthermore, since a portion of the elastic sealing strip 30 is located outside the limiting structure 40 and connected to the flexible display screen 210, while another portion of the elastic sealing strip 30 is located inside the limiting structure 40. Therefore, when a portion of the elastic sealing strip 30 located outside the limiting structure 40 tends to move away from the pressure edge bracket 20 along the second end 232 of the pressing part 23 due to being rubbed by the flexible display screen 210, the movement of the elastic sealing strip 30 along the X and Y directions can be restricted by pulling on another portion of the elastic sealing strip 30 provided in the limiting structure 40. This weakens or even eliminates the aforementioned movement tendency, effectively preventing the problem of the elastic sealing strip 30 falling off the pressure edge bracket 20 due to being rubbed by the flexible display screen 210, thus improving the user experience and product quality.

[0153] Furthermore, since the elastic sealing strip 30 is not only connected to the inner surface 201 of the pressing bracket 20, but also to the limiting structure 40, and the limiting structure 40 is located on the inner surface 201 of the pressing bracket 20, the connection area between the elastic sealing strip 30 and the pressing bracket 20 can be increased by adding the connection area within the limiting structure 40, thereby effectively increasing the connection area between the elastic sealing strip 30 and the pressing bracket 20 and improving the connection strength between the elastic sealing strip 30 and the pressing bracket 20.

[0154] Furthermore, in related technologies, since the edge-pressing bracket needs to be pressed onto the top of the flexible display screen via an elastic sealing strip, the edge-pressing bracket needs to occupy a certain width of the edge of the flexible display screen to ensure the connection between the edge-pressing bracket and the flexible display screen. To prevent the elastic sealing strip from detaching from the edge-pressing bracket during the opening and closing of the flexible display screen, a distance needs to be reserved between the elastic sealing strip and the outer edge of the edge-pressing bracket. This results in the edge-pressing bracket occupying even more of the edge width of the flexible display screen. Based on this, in this embodiment, by setting the limiting structure 40 on the rear side of the elastic sealing strip 30 and setting part of the elastic sealing strip 30 in the limiting structure 40, the limiting effect of the limiting structure 40 located on the rear side of the elastic sealing strip 30 can be relied upon to prevent the elastic sealing strip 30 from coming off the pressing bracket 20 during the opening and closing of the flexible display screen 210. This can shorten the reserved distance between the outer edge of the pressing bracket 20 located on the front side of the elastic sealing strip 30 (i.e., the second end 232 of the pressing part 23) and the elastic sealing strip 30, which is beneficial to reduce the "black border" area (i.e., the non-display area A2 mentioned above) visible to the human eye in the electronic device 200 and increase the screen ratio of the flexible display screen 210.

[0155] Please refer to Figures 10a and 10b. In this embodiment, the main body 31 of the elastic sealing strip 30 can be connected to the inner surface 233 of the pressing portion 23 of the pressing bracket 20, and is arranged around the pressing bracket 20 in the circumferential direction. The extension 32 of the elastic sealing strip 30 is located in the groove 41 of the pressing bracket 20 and is connected to the bottom wall 411 of the groove 41. The extension 32 can cover the entire bottom wall of the groove 41, or it can only cover a part of the bottom wall of the groove 41. Furthermore, the shape of the groove 41 can be adapted to the shape of the extension 32 of the elastic sealing strip 30 to accommodate the extension 32 of the elastic sealing strip 30.

[0156] The following will illustrate the shape possibilities of the groove 41 and the extension 32 through three specific embodiments.

[0157] In one possible implementation, referring to Figures 10a and 10b, the cross-sectional shape of the groove 41 along the direction parallel to the inner surface of the body 21 (i.e., parallel to the XY plane) can be rectangular, and the width of the cross-section along the direction parallel to the inner surface of the body 21 can be the same everywhere from the end facing the pressing part 23 to the direction away from the pressing part 23. That is, the groove 41 is a groove-like structure of equal width.

[0158] The extension 32 covers part of the bottom wall 411 of the groove 41, and there are gaps between the extension 32 and each side wall of the groove 41. The shape of the extension 32 can be adapted to the shape of the groove 41 and is also rectangular.

[0159] In another possible implementation, please refer to Figures 11a and 11b. Figure 11a is a structural schematic diagram from one angle of the second embodiment of the assembly of the edge support 20 and the elastic sealing strip 30 of the frame assembly 100 shown in Figure 7. Figure 11b is a structural schematic diagram from another angle of the second embodiment of the assembly of the edge support 20 and the elastic sealing strip 30 of the frame assembly 100 shown in Figure 7.

[0160] In this embodiment, the cross-sectional shape of the groove 41 along the direction parallel to the inner surface of the body 21 (i.e., the direction parallel to the XY plane) can be an inverted trapezoid (also known as a dovetail shape), and the width of the cross-section along the direction parallel to the inner surface of the body 21 can gradually increase from the end toward the pressing part 23 to the direction away from the pressing part 23. That is, the groove 41 is a groove-like structure with a gradient change in width.

[0161] The extension 32 covers part of the bottom wall 411 of the groove 41, and there are gaps between the extension 32 and each side wall of the groove 41. The shape of the extension 32 can be adapted to the shape of the groove 41 and is also an inverted trapezoid. That is, the width of the extension 32 can gradually increase from the end connected to the main body 31 towards the direction away from the main body 31.

[0162] It is understandable that by making the width of the groove 41 gradually change from the end toward the pressing part 23 to the direction away from the pressing part 23, the width of the end of the extension 32 provided in the groove 41 that is connected to the main body 31 is narrow, and the width of the end that extends into the groove 41 away from the main body 31 is wide. Thus, when the main body 31 is pulled by the flexible display screen 210, because part of the extension 32 is blocked by the body 21 of the pressing edge bracket 20 near the groove 41, the extension 32 is less likely to fall off from the groove 41. This helps to improve the problem of the elastic sealing strip 30 falling off when the flexible display screen 210 is rubbed relative to the pressing edge bracket 20 in the X and / or Y directions, and improves the connection performance between the elastic sealing strip 30 and the pressing edge bracket 20.

[0163] In another possible implementation, please refer to Figures 12a and 12b. Figure 12a is a structural schematic diagram from one angle of the third embodiment of the assembly of the edge support 20 and the elastic sealing strip 30 of the frame assembly 100 shown in Figure 7. Figure 12b is a structural schematic diagram from another angle of the third embodiment of the assembly of the edge support 20 and the elastic sealing strip 30 of the frame assembly 100 shown in Figure 7.

[0164] In this embodiment, the cross-sectional shape of the groove 41 along the direction parallel to the inner surface of the body 21 (i.e., the direction parallel to the XY plane) can be a parallelogram (also called an oblique rectangle). The width of the groove 41 along the direction parallel to the inner surface of the body 21 can be equal from the end facing the pressing part 23 to the direction away from the pressing part 23. That is, the groove 41 is a groove-like structure with equal width but an extension direction inclined to the X direction. Specifically, the groove 41 may include a third end 412 and a fourth end 413. The third end 412 of the groove 41 faces away from the pressing part 23, and the fourth end 413 of the groove 41 faces the pressing part 23. The extension length of the groove 41 between the third end 412 and the fourth end 413 is greater than the straight-line distance between the third end 412 and the fourth end 413.

[0165] The extension 32 covers a portion of the bottom wall 411 of the groove 41, and there are gaps between the extension 32 and each side wall of the groove 41. The shape of the extension 32 can be adapted to the shape of the groove 41 and is also a parallelogram. That is, the extension direction of the extension 32 can be inclined to the extension direction of the main body 31. In addition, the width of the extension 32 can be equal from the end connected to the main body 31 to the direction away from the main body 31.

[0166] It is understandable that by making the extension length of the groove 41 between the third end 412 and the fourth end 413 greater than the straight-line distance between the third end 412 and the fourth end 413, the extension direction of the extension portion 32 provided in the groove 41 can be inclined to the extension direction of the main body 31. Thus, when the main body 31 is pulled by the flexible display screen 210, the direction of the pulling force acting on the main body 31 is inclined to the extension direction of the extension portion 32 because the extension direction of the extension portion 32 is inclined to the extension direction of the main body 31. This makes it less likely for the extension portion 32 to be pulled off the groove 41, which helps to improve the problem of the elastic sealing strip 30 coming off when the flexible display screen 210 is rubbed relative to the edge support 20 in the X and / or Y directions, and improves the connection performance between the elastic sealing strip 30 and the edge support 20.

[0167] It should be understood that the shapes of the groove 41 and the extension 32 are not limited to the shapes described in the three embodiments above. They can also be other shapes, such as regular or irregular shapes like triangles, trapezoids, rhombuses, polygons, etc. In this embodiment, the shapes of the groove 41 and the extension 32 are not strictly required; it is only necessary that the shape of the groove 41 matches the shape of the extension 32.

[0168] Please refer to Figure 13, which is a schematic diagram of the fourth embodiment of the frame assembly 100 shown in Figure 7, showing the pressing bracket 20 and the elastic sealing strip 30 assembled at an angle. In this embodiment, the frame assembly 100 may further include a limiting post 50. The limiting post 50 is located in the groove 41, with one end connected to the bottom wall 411 of the groove 41, and the other end extending away from the bottom wall 411 of the groove 41. The limiting post 50 also passes through the extension 32.

[0169] It is understandable that by adding a limiting post 50 in the groove 41 and having the limiting post 50 pass through the extension 32 of the elastic sealing strip 30, the connection strength between the elastic sealing strip 30 and the pressure bracket 20 can be further increased, making the position of the elastic sealing strip 30 stable and not easily changed.

[0170] It should be noted that the specific location of the limiting post 50 in the groove 41, the number of limiting posts 50, the shape of the limiting post 50, the protrusion height of the limiting post 50 relative to the bottom wall 411 of the groove 41, and other characteristic parameters of the limiting post 50 can be selected according to the specific application scenario. This embodiment does not impose strict restrictions on this.

[0171] Second embodiment:

[0172] Please refer to Figures 14, 15, and 16. Figure 14 is a partial structural diagram of the edge pressing bracket 20 of the frame assembly 100 according to the second embodiment of this application. Figure 15 is a partial structural diagram of the assembly of the edge pressing bracket 20 and the elastic sealing strip 30 of the frame assembly 100 according to the second embodiment of this application. Figure 16 is another partial structural diagram of the assembly of the edge pressing bracket 20 and the elastic sealing strip 30 of the frame assembly 100 according to the second embodiment of this application.

[0173] In this embodiment, the contents that are the same as in the first embodiment will not be repeated. The difference from the first embodiment is that the elastic sealing strip 30 does not have an extension 32 and is connected to the inner surface 201 of the pressing bracket 20. The first side 301 and the second side 302 of the elastic sealing strip 30 can be arranged opposite each other in the width direction of the elastic sealing strip 30 (i.e., the X direction shown in FIG. 15), and all the elastic sealing strips 30 are located in the pressing portion 23 of the pressing bracket 20. The limiting structure 40 is located between the first side 301 and the second side 302 of the elastic sealing strip 30 and passes through the elastic sealing strip 30. Wherein, all the structures in the frame assembly 100 described below can be applied to the frame assembly 100 provided in the first embodiment without conflict.

[0174] Understandably, in the frame assembly 100, the edge-pressing bracket 20 is used to press the four edges of the flexible display screen 210. To prevent the flexible display screen 210 from being damaged due to a rigid collision between the edge-pressing bracket 20 and the flexible display screen 210, an elastic sealing strip 30 needs to be set between the edge-pressing bracket 20 and the flexible display screen 210. This allows the edge-pressing bracket 20 to press the edge of the flexible display screen 210 through the elastic sealing strip 30, achieving functions such as fixing and dust prevention between the edge-pressing bracket 20 and the flexible display screen 210. However, under normal circumstances, the width of the part of the edge-pressing bracket 20 that presses the flexible display screen 210 is relatively narrow. This makes the connection width of the elastic sealing strip 30 in the edge-pressing bracket 20 even narrower, resulting in limited connection strength between the elastic sealing strip 30 and the edge-pressing bracket 20.

[0175] Furthermore, during the opening and closing of the bezel assembly 100, the flexible display screen 210 unfolds and folds accordingly. During this unfolding and folding process, the flexible display screen 210 undergoes elastic deformation, contracting and extending along its extension direction, causing it to rub against the edge support 20. This rubbing can cause the flexible display screen 210 to scrape against the elastic sealing strip 30, making it prone to detachment from the edge support 20 and causing it to fail. This affects the quality of the bezel assembly 100 and the user experience.

[0176] Based on this, in this embodiment, by adding a limiting structure 40 to the inner surface 201 of the pressing bracket 20, and positioning the limiting structure 40 between the first side 301 and the second side 302 of the elastic sealing strip 30, and passing through the elastic sealing strip 30, the limiting structure 40 can directly limit the elastic sealing strip 30. Therefore, when the elastic sealing strip 30 tends to detach from the pressing bracket 20 along the second end 232 of the pressing part 23 due to being rubbed by the flexible display screen 210, the supporting effect of the limiting structure 40 passing through the elastic sealing strip 30 can restrict the movement of the elastic sealing strip 30 in the X and Y directions, thereby weakening or even eliminating the aforementioned tendency to move. This effectively prevents the elastic sealing strip 30 from falling off the pressing bracket 20 due to being rubbed by the flexible display screen 210, improving user experience and product quality.

[0177] In this embodiment, the limiting structure 40 is disposed on the inner surface 233 of the pressing portion 23 of the pressing bracket 20, and the number of limiting structures 40 can be one or more. Each limiting structure 40 can be inserted into the elastic sealing strip 30. When there is only one limiting structure 40, it can be arranged around the entire circumference of the pressing bracket 20. Alternatively, it can be located on any one or more of the four sides of the pressing bracket 20 (i.e., the opposite sides in the length direction and the opposite sides in the width direction). When there are multiple limiting structures 40, they can be arranged at intervals in the circumferential direction of the pressing bracket 20. For example, they can be distributed on the opposite sides in the length direction (i.e., the opposite sides in the X direction) and the opposite sides in the width direction (i.e., the opposite sides in the Y direction). Alternatively, the multiple limiting structures 40 may be distributed only on opposite sides of the length direction of the pressure plate bracket 20, and also located on both sides of the rotation center of the pressure plate bracket 20.

[0178] It should be noted that the shape, length, width, thickness, location, number, and spacing of the limiting structure 40 can be selected according to the specific application scenario. As long as it can prevent the elastic sealing strip 30 from falling off the pressure bracket 20 and from pressing the flexible display screen 210, this embodiment does not impose strict restrictions on this.

[0179] The following description will focus on the specific structure of one limiting structure 40. Unless otherwise specified, the description of one limiting structure 40 can be applied to other limiting structures 40.

[0180] Referring to Figures 14, 15, and 16, the elastic sealing strip 30 has positioning holes 35 that penetrate the elastic sealing strip 30 along its thickness direction. The positioning holes 35 are used to accommodate the limiting structures 40, and their diameter can be adapted to the outer diameter of the limiting structures 40. The number of positioning holes 35 can be the same as the number of limiting structures 40, forming a one-to-one correspondence between one positioning hole 35 and one limiting structure 40. Further description of the elastic sealing strip 30 can be found in the first embodiment above, and will not be repeated here.

[0181] In this embodiment, the limiting structure 40 can be a protrusion 42 protruding from the inner surface 233 of the pressing part 23. One end of the protrusion 42 is connected to the inner surface 233 of the pressing part 23, and the other end of the protrusion 42 extends away from the inner surface 233 of the pressing part 23. The protrusion 42 is located inside the positioning hole 35. For example, as shown in FIG15, the shape of the protrusion 42 can be columnar. Alternatively, as shown in FIG16, the shape of the protrusion 42 can be strip-shaped.

[0182] It is understandable that by setting a positioning hole 35 in the elastic sealing strip 30 and placing the limiting structure 40 formed by the protrusion 42 inside the positioning hole 35, the limiting structure 40 can be connected to the elastic sealing strip 30 by adopting a hole-shaft assembly method. This not only ensures the connection strength and stability between the elastic sealing strip 30 and the edge support 20, but also helps to improve the overall assembly efficiency and product quality of the frame assembly 100.

[0183] When the elastic sealing strip 30 is connected between the pressing bracket 20 and the flexible display screen 210, and the limiting structure 40 is located in the positioning hole 35 of the elastic sealing strip 30, the height of the limiting structure 40 (i.e. the dimension of the limiting structure 40 along the Z direction) can be less than or equal to the working height of the elastic sealing strip 30 (i.e. the dimension of the elastic sealing strip 30 along the Z direction). The working height of the elastic sealing strip 30 is the pressure height of the elastic sealing strip 30 connected between the pressing part 23 and the flexible display screen 210.

[0184] With this configuration, the limiting structure 40 can effectively restrict the movement of the elastic sealing strip 30 in the X and / or Y directions, thus preventing the limiting structure 40 from pressing against the flexible display screen 210 due to excessive protrusion relative to the inner surface 233 of the pressing part 23, resulting in high reliability.

[0185] Third embodiment:

[0186] Please refer to Figures 17 and 18. Figure 17 is a partial structural diagram of the edge pressing bracket 20 of the frame assembly 100 according to the third embodiment of this application, and Figure 18 is a partial structural diagram of the frame assembly 100 of the third embodiment of this application assembled with the elastic sealing strip 30.

[0187] In this embodiment, the contents that are the same as in the first embodiment will not be repeated. The difference from the first embodiment is that the elastic sealing strip 30 does not have an extension 32 and is connected to the inner surface 201 of the pressing bracket 20. The first side 301 and the second side 302 of the elastic sealing strip 30 can be arranged opposite each other in the width direction of the elastic sealing strip 30 (i.e., the X direction shown in FIG. 18), and all the elastic sealing strips 30 are located in the pressing portion 23 of the pressing bracket 20. The limiting structure 40 is filled by the elastic sealing strip 30. Wherein, all the structures in the frame assembly 100 described below can be applied to the frame assembly 100 provided in the first and second embodiments, unless there is conflict.

[0188] Understandably, in the frame assembly 100, the edge-pressing bracket 20 is used to press the four edges of the flexible display screen 210. To prevent the flexible display screen 210 from being damaged due to a rigid collision between the edge-pressing bracket 20 and the flexible display screen 210, an elastic sealing strip 30 needs to be set between the edge-pressing bracket 20 and the flexible display screen 210. This allows the edge-pressing bracket 20 to press the edge of the flexible display screen 210 through the elastic sealing strip 30, achieving functions such as fixing and dust prevention between the edge-pressing bracket 20 and the flexible display screen 210. However, under normal circumstances, the width of the part of the edge-pressing bracket 20 that presses the flexible display screen 210 is relatively narrow. This makes the connection width of the elastic sealing strip 30 in the edge-pressing bracket 20 even narrower, resulting in limited connection strength between the elastic sealing strip 30 and the edge-pressing bracket 20.

[0189] Furthermore, during the opening and closing of the bezel assembly 100, the flexible display screen 210 unfolds and folds accordingly. During this unfolding and folding process, the flexible display screen 210 undergoes elastic deformation, contracting and extending along its extension direction, causing it to rub against the edge support 20. This rubbing can cause the flexible display screen 210 to scrape against the elastic sealing strip 30, making it prone to detachment from the edge support 20 and causing it to fail. This affects the quality of the bezel assembly 100 and the user experience.

[0190] Based on this, in this embodiment, by adding a limiting structure 40 to the inner surface 201 of the pressing bracket 20 and filling the limiting structure 40 with the elastic sealing strip 30, the limiting structure 40 can directly limit the elastic sealing strip 30. Therefore, when the elastic sealing strip 30 tends to detach from the pressing bracket 20 along the second end 232 of the pressing part 23 due to being rubbed by the flexible display screen 210, the limiting structure 40 surrounding the outer side of the elastic sealing strip 30 can restrict the movement of the elastic sealing strip 30 in the X and Y directions, thereby weakening or even eliminating the aforementioned tendency to move. This effectively prevents the elastic sealing strip 30 from falling off the pressing bracket 20 due to being rubbed by the flexible display screen 210, improving user experience and product quality.

[0191] In this embodiment, the limiting structure 40 is disposed on the inner surface 233 of the pressing portion 23 of the pressing bracket 20, and the number of limiting structures 40 can be one or more. Each limiting structure 40 can be filled by an elastic sealing strip 30. When there is only one limiting structure 40, the limiting structure 40 can be arranged around the entire circumference of the pressing bracket 20. Alternatively, the limiting structure 40 can be located on any one or more of the four sides of the pressing bracket 20 (i.e., the opposite sides in the length direction and the opposite sides in the width direction of the pressing bracket 20). When there are multiple limiting structures 40, the multiple limiting structures 40 can be arranged at intervals in the circumferential direction of the pressing bracket 20. For example, the multiple limiting structures 40 can be distributed on the opposite sides in the length direction (i.e., the opposite sides in the X direction of the pressing bracket 20) and the opposite sides in the width direction (i.e., the opposite sides in the Y direction of the pressing bracket 20). Alternatively, the multiple limiting structures 40 may be distributed only on opposite sides of the length direction of the pressure plate bracket 20, and also located on both sides of the rotation center of the pressure plate bracket 20.

[0192] It should be noted that the shape, length, width, thickness, location, number, and spacing of the limiting structure 40 can be selected according to the specific application scenario. As long as it can prevent the elastic sealing strip 30 from falling off the pressure bracket 20 and from pressing the flexible display screen 210, this embodiment does not impose strict restrictions on this.

[0193] The following description will focus on the specific structure of one limiting structure 40. Unless otherwise specified, the description of one limiting structure 40 can be applied to other limiting structures 40.

[0194] Referring to Figures 17 and 18, in this embodiment, the limiting structure 40 can be a mounting groove 43 recessed into the inner surface 233 of the pressing portion 23. The opening of the mounting groove 43 is located on the inner surface 233 of the pressing portion 23. The mounting groove 43 can be recessed relative to its inner surface, and its shape can be adapted to the shape of the elastic sealing strip 30 to accommodate a portion of the elastic sealing strip 30. For example, the mounting groove 43 can be a rectangular groove, and the elastic sealing strip 30 can be rectangular. A portion of the elastic sealing strip 30 is located within the mounting groove 43, and a portion of the elastic sealing strip 30 protrudes relative to the inner surface 233 of the pressing portion 23.

[0195] It is understandable that by setting the elastic sealing strip 30 in the limiting structure 40 formed by the mounting groove 43, the limiting structure 40 and the elastic sealing strip 30 can be connected together by an assembly form similar to hole shaft assembly. This not only ensures the connection strength and connection stability between the elastic sealing strip 30 and the edge bracket 20, but also helps to improve the overall assembly efficiency and product quality of the frame assembly 100.

[0196] When the elastic sealing strip 30 is connected between the pressing bracket 20 and the flexible display screen 210, and the mounting groove 43 is filled with the elastic sealing strip 30, the groove depth of the mounting groove 43 (i.e., the dimension of the mounting groove 43 along the Z direction) can be less than the working height of the elastic sealing strip 30 (i.e., the dimension of the elastic sealing strip 30 along the Z direction). The working height of the elastic sealing strip 30 is the pressure height of the elastic sealing strip 30 connected between the pressing part 23 and the flexible display screen 210.

[0197] With this configuration, while the mounting groove 43 restricts the movement of the elastic sealing strip 30 in the X and / or Y directions, a portion of the elastic sealing strip 30 can extend out of the mounting groove 43 to connect with the flexible display screen 210, thereby enabling the elastic sealing strip 30 to press against the edge of the flexible display screen 210, resulting in high reliability.

[0198] Fourth embodiment:

[0199] Please refer to Figures 19, 20, and 21. Figure 19 is a partial structural diagram of the edge pressing bracket 20 of the frame assembly 100 according to the fourth embodiment of this application. Figure 20 is a partial structural diagram of the assembly of the edge pressing bracket 20 and the elastic sealing strip 30 of the frame assembly 100 according to the fourth embodiment of this application. Figure 21 is another partial structural diagram of the assembly of the edge pressing bracket 20 and the elastic sealing strip 30 of the frame assembly 100 according to the fourth embodiment of this application.

[0200] In this embodiment, the contents that are the same as in the first embodiment will not be repeated. The difference from the first embodiment is that the elastic sealing strip 30 does not have an extension 32 and is connected to the inner surface 201 of the pressing bracket 20. The first side 301 and the second side 302 of the elastic sealing strip 30 can be arranged opposite each other in the width direction of the elastic sealing strip 30 (i.e., the X direction shown in FIG. 20), and all the elastic sealing strips 30 are located in the pressing portion 23 of the pressing bracket 20. The limiting structure 40 is close to the second end 232 of the pressing portion 23 and is located on one side of the second side 302 of the elastic sealing strip 30, and protrudes relative to the inner surface 233 of the pressing portion 23. Where there is no conflict, all structures in the frame assembly 100 described below can be applied to the frame assemblies 100 provided in the first, second, and third embodiments.

[0201] Understandably, in the frame assembly 100, the edge-pressing bracket 20 is used to press the four edges of the flexible display screen 210. To prevent the flexible display screen 210 from being damaged due to a rigid collision between the edge-pressing bracket 20 and the flexible display screen 210, an elastic sealing strip 30 needs to be set between the edge-pressing bracket 20 and the flexible display screen 210. This allows the edge-pressing bracket 20 to press the edge of the flexible display screen 210 through the elastic sealing strip 30, achieving functions such as fixing and dust prevention between the edge-pressing bracket 20 and the flexible display screen 210. However, under normal circumstances, the width of the part of the edge-pressing bracket 20 that presses the flexible display screen 210 is relatively narrow. This makes the connection width of the elastic sealing strip 30 in the edge-pressing bracket 20 even narrower, resulting in limited connection strength between the elastic sealing strip 30 and the edge-pressing bracket 20.

[0202] Furthermore, during the opening and closing of the bezel assembly 100, the flexible display screen 210 unfolds and folds accordingly. During this unfolding and folding process, the flexible display screen 210 undergoes elastic deformation, contracting and extending along its extension direction, causing it to rub against the edge support 20. This rubbing can cause the flexible display screen 210 to scrape against the elastic sealing strip 30, making it prone to detachment from the edge support 20 and causing it to fail. This affects the quality of the bezel assembly 100 and the user experience.

[0203] Based on this, in this embodiment, by adding a limiting structure 40 to the inner surface 201 of the pressing bracket 20, and positioning the limiting structure 40 on one side of the second side 302 of the elastic sealing strip 30, and protruding from the inner surface 233 of the pressing part 23, the limiting structure 40 can directly limit the elastic sealing strip 30. Therefore, when the elastic sealing strip 30 tends to detach from the pressing bracket 20 along the second end 232 of the pressing part 23 due to being rubbed by the flexible display screen 210, the supporting effect of the limiting structure 40 protruding from the inner surface 233 of the pressing part 23 can restrict the movement of the elastic sealing strip 30 in the X and Y directions, thereby weakening or even eliminating the aforementioned tendency to move. This effectively prevents the elastic sealing strip 30 from falling off the pressing bracket 20 due to being rubbed by the flexible display screen 210, improving user experience and product quality.

[0204] In this embodiment, the limiting structure 40 is disposed on the inner surface 233 of the pressing portion 23 of the pressing bracket 20, and the number of limiting structures 40 can be one or more. Each limiting structure 40 can protrude relative to the inner surface 233 of the pressing portion 23. When there is only one limiting structure 40, the limiting structure 40 can be disposed around the entire circumference of the pressing bracket 20. Alternatively, the limiting structure 40 can be located on any one or more of the four sides of the pressing bracket 20 (i.e., the opposite sides in the length direction and the opposite sides in the width direction of the pressing bracket 20). When there are multiple limiting structures 40, the multiple limiting structures 40 can be arranged at intervals in the circumferential direction of the pressing bracket 20. For example, the multiple limiting structures 40 can be distributed on the opposite sides in the length direction (i.e., the opposite sides in the X direction of the pressing bracket 20) and the opposite sides in the width direction (i.e., the opposite sides in the Y direction of the pressing bracket 20). Alternatively, the multiple limiting structures 40 may be distributed only on opposite sides of the length direction of the pressure plate bracket 20, and also located on both sides of the rotation center of the pressure plate bracket 20.

[0205] It should be noted that the shape, length, width, thickness, location, number, and spacing of the limiting structure 40 can be selected according to the specific application scenario. As long as it can prevent the elastic sealing strip 30 from falling off the pressure bracket 20 and from pressing the flexible display screen 210, this embodiment does not impose strict restrictions on this.

[0206] The following description will focus on the specific structure of one limiting structure 40. Unless otherwise specified, the description of one limiting structure 40 can be applied to other limiting structures 40.

[0207] Referring to Figures 19, 20, and 21, the limiting structure 40 can be a retaining wall 44 protruding from the inner surface 233 of the pressing part 23. The retaining wall 44 is spaced apart from the elastic sealing strip 30. One end of the retaining wall 44 is connected to the inner surface 233 of the pressing part 23, and the other end of the retaining wall 44 extends away from the inner surface 233 of the pressing part 23. The minimum distance between the retaining wall 44 and the second end 232 of the pressing part 23 is less than the minimum distance between the elastic sealing strip 30 and the second end 232 of the pressing part 23. For example, the retaining wall 44 can be located at the edge of the second end 232 of the pressing part 23. As shown in Figure 20, the protrusion 42 can be rectangular. Alternatively, as shown in Figure 21, the protrusion 42 can be strip-shaped.

[0208] It is understandable that by providing a retaining wall 44 at the second end 232 of the pressing part 23 and positioning the limiting structure 40 formed by the retaining wall 44 at the front side of the elastic sealing strip 30, the movement of the elastic sealing strip 30 in the X and / or Y directions can be effectively restricted, resulting in high reliability.

[0209] When the elastic sealing strip 30 is connected between the pressing bracket 20 and the flexible display screen 210, and the limiting structure 40 is located on the second side 302 of the elastic sealing strip 30, the height of the limiting structure 40 (i.e., the dimension of the limiting structure 40 along the Z direction) can be less than or equal to the working height of the elastic sealing strip 30 (i.e., the dimension of the elastic sealing strip 30 along the Z direction). The working height of the elastic sealing strip 30 is the pressure height of the elastic sealing strip 30 connected between the pressing part 23 and the flexible display screen 210.

[0210] With this configuration, the limiting structure 40 can effectively restrict the movement of the elastic sealing strip 30 in the X and / or Y directions, thus preventing the limiting structure 40 from pressing against the flexible display screen 210 due to excessive protrusion relative to the inner surface 233 of the pressing part 23, resulting in high reliability.

[0211] Please refer to Figures 22a and 22b. Figure 22a is a partial structural diagram of the edge-pressing bracket 20 and the elastic sealing strip 30 of the frame assembly 100 of the fourth embodiment of this application at one angle. Figure 22b is a partial structural diagram of the edge-pressing bracket 20 and the elastic sealing strip 30 of the frame assembly 100 of the fourth embodiment of this application at another angle.

[0212] The resilient sealing strip 30 may include at least two segments 36. The at least two segments 36 may be sequentially arranged along the circumferential direction of the pressure plate bracket 20. A cutting gap T may be formed between two adjacent segments 36. The retaining wall 44 is located outside the cutting gap T. Exemplarily, the cutting gap T may extend in a zigzag, curved, or straight manner, without strict limitation.

[0213] It is understandable that the cutting gap T is a weak area in the elastic sealing strip 30 that is prone to detaching from the pressure bracket 20. By setting the retaining wall 44 on the outside of the cutting gap T, the position of the cutting gap T of the elastic sealing strip 30 can be reinforced, so that the retaining wall 44 can limit the elastic sealing strip 30, effectively solving the problem that the elastic sealing strip 30 is prone to detaching from the pressure bracket 20, and has high reliability.

[0214] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

A bezel assembly characterized by The frame assembly comprises: a middle frame; a pressing bracket, the pressing bracket comprises a body and a pressing part, the body is connected with the middle frame, a first end of the pressing part is connected with the body, a second end of the pressing part extends away from the body, and the pressing part is oppositely arranged with part of the middle frame in a thickness direction of the frame assembly; an elastic sealing strip, the elastic sealing strip is connected with an inner surface of the pressing bracket, the elastic sealing strip comprises a first side and a second side, the first side is towards the first end, and the second side is towards the second end; a limiting structure arranged on the inner surface of the pressing bracket, the limiting structure is located on one side of the first side, part of the elastic sealing strip is located in the limiting structure, or the limiting structure is located between the first side and the second side and penetrates the elastic sealing strip, or the limiting structure is located on one side of the second side and is protrudingly arranged relative to the inner surface of the pressing part, or the limiting structure is filled by the elastic sealing strip. The bezel assembly of claim 1, wherein The thickness of the body is greater than the thickness of the pressing part, the limiting structure is a groove recessed in the inner surface of the body, and a groove bottom wall of the groove is flush with the inner surface of the pressing part; the elastic sealing strip comprises a main body and an extension part, the main body is connected with the inner surface of the pressing part, the main body comprises the first side and the second side, and the extension part is connected with the first side and located in the groove and connected with the groove bottom wall. The bezel assembly of claim 2, wherein The middle frame has a slot, the pressing bracket further comprises a plug-in part, the plug-in part is located in the slot and connected with the pressing part respectively on two adjacent sides of the body, and the groove extends from a connection between the pressing part and the body to the plug-in part. The bezel assembly of claim 2, wherein The frame assembly further comprises a limiting column, the limiting column is located in the groove and protrudes from the groove bottom wall, and the limiting column penetrates the extension part. The bezel assembly of any one of claims 2-4, wherein The cross-sectional width of the groove along a direction parallel to the inner surface of the body gradually increases from one end towards the pressing part to a direction away from the pressing part. The bezel assembly of any one of claims 2-4, wherein The groove comprises a third end and a fourth end, the third end is away from the pressing part, the fourth end is towards the pressing part, and the extension length of the groove between the third end and the fourth end is greater than the straight-line distance between the third end and the fourth end. The bezel assembly of claim 1, wherein The limiting structure is a protrusion protruding from the inner surface of the pressing part, the elastic sealing strip has a positioning hole, the positioning hole penetrates the elastic sealing strip along the thickness direction of the elastic sealing strip, and the protrusion is located in the positioning hole. The bezel assembly of claim 1, wherein The limiting structure is a retaining wall protruding from the inner surface of the pressing part, the retaining wall is arranged in a spaced manner with the elastic sealing strip, and the minimum distance between the retaining wall and the second end is less than the minimum distance between the elastic sealing strip and the second end. The bezel assembly of claim 8, wherein The elastic sealing strip comprises at least two sub-segments, the at least two sub-segments are arranged in sequence along a circumferential direction of the pressing bracket, a cut-off gap is formed between adjacent two sub-segments, and the retaining wall is located outside the cut-off gap. The bezel assembly of any one of claims 7-9, wherein The height of the limiting structure is less than or equal to the working height of the elastic sealing strip, wherein the working height of the elastic sealing strip is the compressed height of the elastic sealing strip connected between the pressing part and the flexible display screen. The bezel assembly of claim 1, wherein The limiting structure is a mounting groove recessed in the inner surface of the pressing part, part of the elastic sealing strip is located in the mounting groove, and part of the elastic sealing strip is protrudingly arranged relative to the inner surface of the pressing part. The bezel assembly of claim 11, wherein The groove depth of the mounting groove is less than the working height of the elastic sealing strip, wherein the working height of the elastic sealing strip is the compressed height of the elastic sealing strip connected between the pressing part and the flexible display screen. The bezel assembly of any one of claims 1-4, 7-9, 11, or 12, wherein The number of the limiting structures is multiple. The multiple limiting structures are arranged at intervals along the circumferential direction of the pressing edge support, or the multiple limiting structures are arranged at intervals on opposite sides in the length direction of the pressing edge support and on both sides of the rotation center of the pressing edge support. An electronic device, characterized by comprising: The electronic device comprises a flexible display screen and the frame assembly according to any one of claims 1-13, the flexible display screen is connected to the middle frame and connected to the side of the elastic sealing strip away from the pressing part. The electronic device of claim 14, wherein, The electronic device is a foldable device.

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