A decorative component, an electronic device, and a method for assembling the electronic device.

Abstract

This application discloses a decorative component, an electronic device, and a method for assembling the electronic device. The electronic device may include a handheld device, an in-vehicle device, a wearable device, a terminal device, or a device connected to a wireless modem, cellular phone, smartphone, personal digital assistant, computer, tablet computer, laptop computer, etc. In this application embodiment, the electronic device has a through hole on its middle frame. A limiting structure can be installed from the side away from the display screen through the through hole to lock the mounting body to the middle frame. This limiting structure has high flexibility and does not affect the appearance of the middle frame. After the mounting body is locked to the middle frame by the limiting structure, it can be prevented from detaching from the middle frame, thereby improving the reliability of fixing the decorative component to the middle frame.

Description

Technical Field

[0001] This application relates to the field of communication equipment technology, and in particular to a decorative part, an electronic device, and a method for assembling the electronic device. Background Technology

[0002] Currently, electronic devices are becoming increasingly feature-rich and complex in design. To meet certain functional or design requirements, decorative elements, also known as cover plates, are often placed on the side of the display screen. These cover plates are particularly prevalent in foldable screen electronic devices. However, current issues with decorative cover plates in foldable screen electronic devices include insecure installation, complex installation methods, and compromised aesthetics. Summary of the Invention

[0003] This application provides an electronic device with a reliable display screen side decorative part and an assembly method for the electronic device.

[0004] This application provides an electronic device including a mid-frame. A display screen and a decorative element are mounted on a first side of the mid-frame. The decorative element includes a first surface, a second surface, and a mounting body. The first surface forms a partial appearance surface of the electronic device. The second surface is located on the side of the decorative element opposite to the first surface and between the first surface and the plane where the display screen is located. The mounting body protrudes from the second surface. The mid-frame also has a through-hole that extends through the thickness direction of the mid-frame. The mounting body is at least partially located inside the through-hole of the mid-frame. The electronic device also includes a limiting structure, through which the mounting body is locked to the mid-frame. The thickness direction of the mid-frame is approximately perpendicular to the plane where the display screen is located, or it is the arrangement direction of the display screen and the back cover. In one specific example, the mounting body can be locked to the mid-frame by the limiting structure at the end away from the display screen. Of course, the mounting body can be partially locked to the mid-frame, or the mounting body can be completely locked to the mid-frame.

[0005] In this embodiment, a through hole is provided on the middle frame, and the limiting structure can be installed from the side away from the display screen through the through hole to lock the mounting body to the middle frame. This limiting structure has high flexibility and does not affect the appearance of the middle frame. After the mounting body is locked to the middle frame by the limiting structure, it can prevent the mounting body from detaching from the middle frame, thereby improving the reliability of fixing the decorative part to the middle frame.

[0006] In addition, in this embodiment, the mounting body of the decorative component is at least partially located inside the through hole, or it can be completely located inside the middle frame without affecting the external structure of the middle frame. The design flexibility of the middle frame can be relatively high, and the processing precision of the mounting body can be relatively low, and the processing cost can be relatively low.

[0007] In one example, the end of the mount furthest from the display screen is snapped into the wall of the through hole via a limiting structure. This snap-fit ​​connection offers high reliability and is easy to implement.

[0008] In one example, the limiting structure includes a block, which is at least partially located in the assembly path of the mounting body. The block is connected to the wall of the through hole for limiting the mounting body, and the main function of the block is to prevent the mounting body from dislodging from the through hole. In this application, the assembly path refers to the path along which the mounting body is inserted into the through hole. In this embodiment, by setting a block on the assembly path of the mounting body, the mounting body can be prevented from dislodging from the through hole along the assembly direction, resulting in a simple structure.

[0009] In one example, the block is solidified between the mounting body and the middle frame using a fluid material. The fluid material is a deformable material that can flow spontaneously or under certain conditions. For example, the fluid material can be plastic, glue, or clay. Plastic is filled between the mounting body and the middle frame through injection molding and extrusion, and forms a plastic block after curing. Glue is filled between the mounting body and the middle frame through injection molding or extrusion, and forms a glue block after curing. Clay can also be filled between the mounting body and the middle frame through extrusion, and forms a clay block after curing.

[0010] In this way, the decorative component can be filled between the mounting body and the middle frame after the mounting body and the middle frame are assembled, and then cured to form a block that acts as a limiter. This way, when the mounting body and the middle frame are assembled, there is no restriction from the limiter structure, making installation convenient.

[0011] In one example, the outer wall of the mounting body has a recess, and the wall of the through hole has a recessed cavity. The recess and the recessed cavity form a receiving space, and at least a portion of the block can be formed within the receiving space. In this embodiment, the recess is formed in the mounting body, resulting in a smaller volume occupied by the mounting body. Correspondingly, the recessed cavity is formed in the wall of the through hole, allowing the through hole to be smaller in size, thus occupying less volume in the mid-frame. This allows for relatively higher mid-frame strength, which is beneficial for improving the overall performance of the electronic device.

[0012] In one example, the recess has a first wall facing the display screen, and the cavity wall of the recess includes a second wall facing the back cover of the mid-frame. That is, the first and second walls face opposite directions and are arranged along the thickness direction, thus forming a partial area of ​​receiving space between the first and second walls. The block is at least partially located between the first and second walls. The projections of the first and second walls in a plane perpendicular to the thickness direction of the mid-frame may partially coincide; of course, the projections of the first and second walls in a plane perpendicular to the thickness direction of the mid-frame may also not coincide.

[0013] In this embodiment, the first wall and the second wall are two opposing inverted surfaces. When the decorative piece is subjected to external force, the block can abut against the first wall to inhibit the upward movement of the first wall relative to the through hole. At the same time, the second wall exerts a downward force on the block, which can offset part of the force exerted by the first wall on the block. The above structure of this application can provide a relatively large resistance to deformation and form a reliable and stable fixed connection structure.

[0014] In one example, both the first and second walls can be planar, meaning both can be planar and parallel to the plane of the display screen. When the electronic device is a foldable screen device, the first and second walls are parallel to the display screen in its unfolded state. In this embodiment, the planar structure is relatively simple to process. Of course, the structure of the first and second walls is not limited to planar surfaces; they can also be curved surfaces.

[0015] In one example, the middle frame also includes a second side. The first and second sides are located on opposite sides of the middle frame along its thickness direction. A through-hole forms a first opening end on the first side and a second opening end on the second side, meaning the through-hole extends through both the first and second sides of the middle frame. The recessed cavity extends to the second opening end, allowing the block to be inserted into the recessed cavity from the second opening end position on the second side, resulting in a simple structure.

[0016] In one example, an injection channel is formed between the mounting body and the corresponding cavity wall of the recessed cavity. One end of the injection channel is connected to the receiving space, and the other end is connected to the second opening end. Thus, in this embodiment of the application, the injection channel is formed between the mounting body and the cavity wall of the recessed cavity, eliminating the need to open a separate channel on the middle frame for glue injection, simplifying the middle frame processing technology, and improving the strength of the middle frame.

[0017] In one example, along the assembly direction of the mounting body, the through hole is a stepped hole, which includes a first hole segment and a second hole segment connected by a stepped surface. The recessed cavity can be part of the second hole segment, or it can be the entire second hole segment. The stepped surface is the second wall, and the second wall faces the second opening end. The mounting body includes a connected first column segment and a second column segment. The first column segment circumferentially fits the first hole segment, and the first column segment and the first hole segment can be circumferentially fitted together. Of course, the first column segment and the second hole segment can also be circumferentially clearance fitted. The second column segment is located in the second hole segment, and the recessed portion is located in the second column segment. In this embodiment, the first column segment and the first hole segment are shaped to match, and they are basically fitted together circumferentially or have a very small gap. Thus, the receiving space formed by the recessed portion and the recessed cavity is located on one side of the first hole segment and is basically a closed structure. The injected fluid material will basically not flow between the first hole segment and the first column segment. The fluid material entering from the second opening end will basically be located between the recessed portion and the recessed cavity, which is beneficial to improving the solidification and molding quality of the fluid material forming the block, thereby improving the locking reliability of the mounting body and the through hole.

[0018] In one example, the limiting structure is directly formed from the decorative part. The end of the mounting body away from the second surface is plastically deformed to form the limiting structure, and the end of the mounting body away from the second surface is plastically deformed to snap onto the wall of the connecting hole. This embodiment directly utilizes the mounting body structure to form the limiting structure, resulting in fewer parts and helping to reduce the overall weight of the machine.

[0019] In one example, the outer wall of the decorative element on the middle frame is inclined, and at least the outer wall of the section of the middle frame with the through hole has an inclined surface. The inclined surface forms an angle with the thickness direction of the middle frame, and the axial direction of the through hole is substantially the same as the inclination direction of the inclined surface. In this way, the distance from the through hole to the inclined surface is substantially the same throughout the thickness direction of the electronic device, resulting in high overall strength of the middle frame. Furthermore, since the through hole extends in the same direction as the inclined surface, the second opening end of the through hole can be located in the area covered by the back cover, without affecting the overall shape of the device.

[0020] In one example, the decorative element includes a side segment, which is a straight section. At least one end of the side segment is connected to a bend segment, and the side segment may have bend segments at both ends. The mounting body is located on the side segment. During assembly, the bend segment of the decorative element typically corresponds to the corner of the mid-frame. In this application, the mounting body is located on the side segment, avoiding the corner of the mid-frame, which improves the strength of the mid-frame corner.

[0021] In one example, the side segment is connected to a bend at both ends along its length, and there are at least two mounts. The mounts are positioned on the side segment close to the bend, for example, 0 to 10 mm away from the bend. This maximizes the reliability of the decorative parts' fixation without affecting the strength of the corner of the frame.

[0022] In one example, the second surface has a support area, through which the decorative element contacts and supports the mid-frame. The decorative element also includes an extension extending from the support area toward the display screen. The extension covers the gap between the corresponding side of the display screen and the mid-frame; that is, the extension at least partially extends above the display screen, with the corresponding side of the display screen located between the extension and the mid-frame. For foldable screen electronic devices, the corresponding side of the display screen slides back and forth between the extension and the mid-frame. In this embodiment, the decorative element covers the gap between the corresponding side of the display screen and the mid-frame through the extension, thus improving the aesthetic appearance of the electronic device to some extent.

[0023] In one example, an elastic cushioning pad is provided on the surface of the extension section facing the display screen. The elastic cushioning pad can be a component such as silicone, rubber, or film that provides cushioning and wear resistance. The extension section contacts the display screen through the elastic cushioning pad. This reduces wear on the display screen caused by the extension section and protects the display screen.

[0024] In one example, an adhesive layer is provided between the support area and the middle frame. In this embodiment, the support area of ​​the decorative element is further fixed to the middle frame by the adhesive layer, improving the fixing reliability of the decorative element.

[0025] In one example, the support area also has a boss, the height of which is less than the height of the mounting body. The middle frame also has a groove, with the boss located inside the groove, and the boss and groove are bonded together. The corresponding surfaces of the boss and groove are bonded together with adhesive, further increasing the bonding area between the decorative element and the middle frame and improving the reliability of the decorative element's fixation.

[0026] In one example, the first side of the mid-frame has a protruding frame located around the perimeter of the display screen. For a rectangular electronic device, the frame roughly forms a rectangle. The frame includes side sections, and adjacent side sections are connected by corner sections. The groove includes a first groove and a second groove, with the first groove located on the side section and the second groove located at the corner section. The depth of the second groove is less than that of the first groove. Along the length of the decorative element, the boss includes a first boss and a second boss, located in the first and second grooves respectively. The height of the first boss is higher than that of the second boss. In this embodiment, the depth of the second groove near the corner of the electronic device is relatively shallow compared to other locations. This results in higher strength of the mid-frame at the corner, which is beneficial for improving the strength of the corner section and increasing its load-bearing capacity.

[0027] In one example, the second recess has a first notch on the side wall of the recess closest to the display screen to avoid obstructing the display screen, thus allowing for a larger display screen size.

[0028] In one example, the through hole is located on the side, and the position of the through hole should be avoided as much as possible from the corner, which helps to improve the strength of the corner of the middle frame.

[0029] In one example, the sidewall of the first groove is further provided with a second notch, which serves as a reference structure for the glue-filling device during glue-filling operations. The glue-injection or dispensing device can use the second notch as a reference point to perform rapid glue-injection or dispensing operations.

[0030] In one example, the electronic device is a foldable screen device. The foldable screen device includes a hinge, with a middle frame on each side of the hinge. The display screen is slidably supported on the two middle frames. Under the action of the hinge, the two middle frames fold or unfold relative to each other, causing the display screen to slide back and forth relative to the two middle frames. Decorative panels are provided on the sides of the two middle frames parallel to the axis of the hinge to cover the gaps between the corresponding sides of the display screen and the middle frames. In this embodiment, the decorative panels serve both a decorative function and can also assist in positioning the sides of the display screen, improving the stability of the display screen when sliding relative to the middle frames.

[0031] Secondly, embodiments of this application also provide a decorative component, installed on one side of an electronic device's display screen. The decorative component includes a first surface, which is mainly used to form a partial appearance surface of the electronic device. The first surface and the display screen are located on the same side of the mid-frame. The decorative component also includes a second surface, located on the side of the decorative component opposite to the first surface. The second surface is provided with a mounting body, which protrudes from the second surface. The mounting body is mainly used to be disposed inside a through hole on the mid-frame, and the mounting body is locked to the mid-frame by a limiting structure. In one example, the end of the mounting body away from the second surface is locked to the mid-frame by the limiting structure. For example, the end of the mounting body away from the second surface passes through the through hole and is located on the second side of the mid-frame, and this end is fixed to the mid-frame by the limiting structure.

[0032] In this embodiment, the decorative component has a mounting body that inserts into the through hole of the middle frame. The limiting structure can be installed from the side of the through hole away from the display screen to prevent the mounting body from coming out of the through hole, thereby improving the flexibility of the limiting structure setting and improving the reliability of fixing the decorative component.

[0033] In one example, the mounting body includes a first column segment and a second column segment, with the first body and the second column segment connected together. The second column segment is located at the end of the first column segment away from the second surface. The first column segment is used to circumferentially mate with a corresponding hole segment on the middle frame. The second column segment has a recessed portion, and the limiting structure is at least partially located in the recessed portion. The recessed portion is located at the end away from the display screen, facilitating the installation and setting of the limiting structure.

[0034] In one example, the decorative element includes a side section and a corner section. The side section is a straight segment, and the corner section is connected to the end of the side section along its length. The mounting body is located on the side section. During assembly, the corner section is substantially opposite to the corner of the middle frame. In this embodiment, the mounting body is positioned to avoid the corner section. Correspondingly, the through holes on the middle frame are positioned to avoid the corner, which helps to improve the strength of the corner.

[0035] In one example, both ends of the side segment are connected to bend segments, and a mounting body is provided at least near the bend segment of the side segment. That is, the decorative piece has at least two mounting bodies, located at both ends of the side segment. Of course, mounting bodies can also be provided at other locations on the side segment. Theoretically, the more mounting bodies there are, the more reliable the fixing of the decorative piece will be, but the structure of the decorative piece and the middle frame will also become more complex. Providing mounting bodies only at both ends of the side segment simplifies the structure of the decorative piece and the middle frame while ensuring reliable fixing.

[0036] In one example, the second surface has a support area, through which the decorative element is supported by the mid-frame. The decorative element also includes an extension for covering the gap between the corresponding side of the display and the mid-frame, the extension extending from the support area toward the display side. In this embodiment, the decorative element can cover the gap between the display and the mid-frame, improving the appearance quality of the electronic device.

[0037] In one example, the second surface also has a boss, the height of which is less than the height of the mounting body. During assembly, the boss is located inside a groove in the middle frame, and the boss and groove are bonded together. The boss and groove can be bonded together using adhesive. This bonding of the boss and groove further improves the reliability of the fixing of the decorative part to the middle frame.

[0038] Thirdly, embodiments of this application also provide a method for assembling any of the above-mentioned electronic devices, comprising:

[0039] Assemble the display screen on one side of the mid-frame;

[0040] The mounting body of the decorative piece is inserted at least partially into the through hole of the middle frame, and the decorative piece is supported on the first side of the middle frame;

[0041] A limiting structure is installed on the side of the self-through hole away from the display screen so that the limiting structure locks the mount to the middle frame.

[0042] In this embodiment, a through hole is provided on the middle frame, and the limiting structure can be installed from the side away from the display screen to lock the decorative part and the middle frame. The limiting structure is easy to install, and the mounting body and the limiting structure can be located inside or at the rear of the middle frame without affecting the appearance surface of the middle frame.

[0043] In one example, the limiting structure is formed in the following way:

[0044] A fluid material is injected between the mounting body and the middle frame and then cured to form a limiting structure. As mentioned above, the limiting structure can be formed by injecting the fluid material between the decorative part and the middle frame after the decorative part and the middle frame are assembled. This way, the assembly of the decorative part and the middle frame is not affected by the limiting structure, and the flexibility is relatively high.

[0045] In one example, the electronic device also includes a back cover, and after the limiting structure has solidified, the following steps are performed:

[0046] Install the back cover on the side of the mid-frame away from the display.

[0047] The assembly method of the electronic device provided in this application embodiment is based on the above-mentioned electronic device, and the decorative part is used for the above-mentioned electronic device. Therefore, the assembly method and the decorative part also have the above-mentioned technical effects of the electronic device. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of an electronic device in its unfolded state in the current technology.

[0049] Figure 2 For when Figure 1The diagram shown is a schematic of an outward-folding screen electronic device in its folded state.

[0050] Figure 3 For when Figure 1 The diagram shown illustrates the folded state of an electronic device with an inwardly folding screen.

[0051] Figure 4 for Figure 1 A1-A1 sectional view of region A' of the electronic device shown;

[0052] Figure 5 This is a schematic diagram of a partial cross-section in another electronic device of the present technology; wherein the cross-section is located relative to... Figure 1 The position of A' is the same;

[0053] Figure 6 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application;

[0054] Figure 7 for Figure 6 A top view of the central display screen, where the dashed lines represent the display modules;

[0055] Figure 8 for Figure 6 A partial decomposition diagram at point A in the middle;

[0056] Figure 9 for Figure 6 A magnified view of a section at point A in the middle;

[0057] Figure 10 for Figure 9 DD section view;

[0058] Figure 11 for Figure 10 A schematic diagram of the assembly of the decorative parts and the elastic cushioning pad;

[0059] Figure 12 for Figure 10 A schematic diagram of the middle frame; where the dashed line in the diagram represents the boundary of the first hole segment;

[0060] Figure 13 for Figure 12 The diagram shows the state of the structure inserted into the middle frame on which the display screen is installed at a certain moment.

[0061] Figure 14 for Figure 12 Another perspective illustration; where the dashed lines represent the boundary lines of the plastic body;

[0062] Figure 15 for Figure 11 Structural diagram of the decorative component;

[0063] Figure 16for Figure 9 EE section view;

[0064] Figure 17 This is a flowchart illustrating the assembly process of an electronic device in one embodiment of this application;

[0065] Figure 18 This is a schematic diagram of the structure of an electronic device in another embodiment of this application;

[0066] Figure 19 for Figure 18 A 3D schematic diagram of the decorative component;

[0067] Figure 20 This is a schematic diagram of the structure of an electronic device in another embodiment of this application;

[0068] Figure 21 for Figure 20 A schematic diagram of the decorative component before plastic deformation.

[0069] in, Figures 1 to 21 middle:

[0070] 31' protrusion; 4' screw; 5' back cover;

[0071] 11' glue tank;

[0072] 1. Middle frame; 11. First middle frame; 12. Second middle frame; 1a. Receiving cavity; 10. Frame body; 101. Side part; 102. Corner part; 111. Metal body; 112. Block body; 113. Stepped surface; 114. Groove; 1141. First groove; 1142. Second groove; 115. Through hole; 115a. Recessed cavity; 115a1. Second wall; 116. Inclined surface; First opening end 115b; Second opening end 115c;

[0073] 2. Display screen; 21. Transparent cover plate; 22. Display module;

[0074] 3. Decorative component; 3-1 Side section; 3-2 Turning section; 31 First surface; 32 Second surface; 321 Support area; 33 Extension section; 34 Mounting body; 34a Recess; 341 First wall; 342 Vertical wall; 343 Inclined section; 36 Boss; 361 First boss; 362 Second boss; First column section 34-1; 34-2 Second column section;

[0075] 4-axis rotation;

[0076] 5. Limiting structure;

[0077] 6. Elastic cushioning pads;

[0078] 7. Back cover. Detailed Implementation

[0079] Please refer to Figure 1The foldable screen electronic device includes a mid-frame 1, a hinge 4, and a display screen 2. The display screen 2 is supported on one side of the mid-frame 1. The display screen 2 includes a central section 2-2 and free sections 2-1 connecting both sides of the central section 2-2. The central section 2-2 corresponds to the hinge. When the foldable screen electronic device is folded or unfolded, the first mid-frame 11 and the second mid-frame 12 rotate around the central axis P, simultaneously causing the two free sections 2-1 to rotate around the central axis P as well, so that the display screen is in the unfolded or folded state. During the folding or unfolding process, the relative position of the central section 2-2 and the hinge 4 remains approximately unchanged, and the two can be fixed.

[0080] Depending on the position of the display screen 2 after folding, foldable electronic devices can be further divided into outward-folding electronic devices and inward-folding electronic devices, such as... Figure 2 As shown, when the outward-folding electronic device is in the folded state, the display screen 2 is located outside the middle frame 1 (first middle frame 11 and second middle frame 12); as Figure 3 As shown, when the inward-folding electronic device is in the folded state, the display screen 2 is folded between the first middle frame 11 and the second middle frame 12.

[0081] comprehensive Figure 1 , Figure 2 and Figure 3 It can be seen that, regardless of whether the electronic device is folded outward or folded inward, when the display screen 2 is in the unfolded state, the display screen 2 is basically flat as a plane. When the display screen 2 is in the folded state, the connecting section 2-11 of the free section 2-1 near the middle section 2-2 will be bent into an arc shape.

[0082] Because the rotation radii of the first middle frame 11 and the second middle frame 12 are not exactly the same as the rotation radius of the display screen 2, in order to meet the folding deformation requirements of the display screen 2, the two free sections 2-1 need to be able to slide relative to the middle frame 1. Thus, during the folding or unfolding process, the distance between the first side 2a of the display screen 2 and the side wall 11a of the first middle frame 11, and between the second side 2b and the side wall 12a of the second middle frame 12, changes. In at least one of the unfolded or folded states, there will inevitably be gaps between the first side 2a and the side wall 11a of the first middle frame 11, and between the second side 2b and the side wall 12a of the second middle frame 12. Please refer to... Figure 1 , Figure 2 and Figure 3 ,in Figure 1 The image shows the distance m between the first side 2a and the side wall 11a of the first middle frame 11 when the frame is flattened. Figure 2 The image shows the folded electronic device in its folded state, with a distance m1 between the first side 2a and the side wall 11a of the first middle frame 11. Figure 3The diagram shows the distance m2 between the first side 2a and the side wall 11a of the first middle frame 11 when the inward-folding electronic device is in its folded state. For the outward-folding electronic device, m is less than m1, and for the inward-folding electronic device, m is greater than m2.

[0083] To improve the aesthetics and overall performance of foldable screen electronic devices, decorative elements 3 are usually added to the mid-frame 1 to cover the gap between the display screen 2 and the mid-frame 1.

[0084] The inventors of this application conducted extensive research and found that there are roughly two ways to set the decorative element 3:

[0085] For the first method, please refer to... Figure 4 , Figure 4 for Figure 1 The diagram shows a cross-sectional view of area A' of the electronic device shown, along with a U-shaped decorative component 3. After assembly with the middle frame 1, one end of the middle frame 1 is located inside the opening of the U-shaped structure. Screws 4' are then used to fix the side wall of the U-shaped structure near the back cover 7 to the middle frame 1. This method of manufacturing decorative component 3 involves a relatively complex structure, requiring precision stamping, computerized numerical control (CNC) technology, rough, medium, and fine polishing, and two-color coating processes. The manufacturing process is lengthy and relatively expensive.

[0086] For the second method, please refer to... Figure 5 , Figure 5 This is a schematic diagram of a partial cross-section of another electronic device in the current technology, where the cross-section is located relative to... Figure 1 The A' position is the same. The decorative component 3 is roughly a plate structure. The joint between the decorative component 3 and the middle frame 1 is fixed with adhesive. To increase the adhesive area, the middle frame 1 sometimes has a melt-solution groove 11'. The decorative component 3 may have protrusions 31' located inside the melt-solution groove 11'. The adhesive used to fix the decorative component 3 to the middle frame 1 is prone to failure after a period of use, leading to cracking, lifting, and even partial detachment of the adhesive, resulting in poor fixation reliability. Furthermore, to ensure sufficient bonding strength between the decorative component and the middle frame, the adhesive is relatively thick, resulting in a thicker overall machine and affecting its overall quality.

[0087] Therefore, overcoming at least one of the above-mentioned defects is a technical problem that urgently needs to be solved by those skilled in the art.

[0088] Based on the above research findings, the inventors of this application conducted extensive research and experiments, and proposed an electronic device in which the decorative parts located on the display side have relatively high fixation reliability, which is beneficial to improving the overall quality of the device.

[0089] To enable those skilled in the art to better understand the technical solutions of the embodiments of this application, the embodiments of this application will be further described in detail below with reference to the accompanying drawings and specific examples.

[0090] This application relates to an electronic device, which may include a handheld device, an in-vehicle device, a wearable device, a terminal device, or other processing devices connected to a wireless modem. It may also include cellular phones, smartphones, personal digital assistant (PDA) computers, tablets, laptops, camcorders, video recorders, cameras, smartwatches, smart wristbands, augmented reality (AR) devices, virtual reality (VR) devices, in-vehicle computers, and other terminal devices with imaging capabilities. This application does not impose special limitations on the specific form of the aforementioned terminal devices. For ease of understanding, the following description uses a mobile phone as an example.

[0091] The following description uses a foldable screen electronic device as an example to further illustrate the technical solutions and effects. Of course, those skilled in the art should understand that the technical solutions of the embodiments of this application can be applied to both foldable screen electronic devices and non-foldable screen electronic devices.

[0092] Please see Figure 6 , Figure 6 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application.

[0093] The foldable screen electronic device 100 in this embodiment includes a middle frame 1, a display screen 2, and a hinge 4. The middle frame 1 comprises two parts: a first middle frame 11 and a second middle frame 12. The first middle frame 11 and the second middle frame 12 are located on opposite sides of the hinge 4 and are connected by the hinge 4. Under the action of the hinge 4, the first middle frame 11 and the second middle frame 12 can be folded and unfolded relative to each other, thereby realizing the folding or unfolding of the foldable screen electronic device. Figure 6 The axial direction S1 of the rotating shaft 4 is shown in the figure. The first middle frame 11 and the second middle frame 12 may have a receiving cavity 1a (see Figure 8The motherboard, processor, internal memory, charging management module, power management module, and battery (not shown in the figure) of the foldable screen electronic device 100 can be installed inside the receiving cavity 1a of the first middle frame 11 and the second middle frame 12, and the display screen 2 is disposed on one side of the first middle frame 11 and the second middle frame 12. The first middle frame 11 and the second middle frame 12 serve to support and protect the various electronic components.

[0094] Please refer to this again. Figure 6 In this embodiment, the first middle frame 11 may include a metal body 111 and a plastic body 112. The metal body 111 is partially broken, and the plastic body 112 fills the broken position. This can meet the requirements of the first middle frame 11 as an antenna or other functional requirements. The function of the partial break of the metal body 111 in the first middle frame 11 is not described in detail in this application, but can be referred to the current literature.

[0095] In this embodiment, the structures of the second middle frame 12 and the first middle frame 11 can be the same, or they can be different. The specific structure of the two middle frames can be determined according to the specific product.

[0096] The display screen 2 includes two sides parallel to axis S1, defined as a first side 2a and a second side 2b. When the foldable screen electronic device is unfolded or folded, the display screen 2 can slide back and forth relative to the two middle frames (first middle frame 11 and second middle frame 12). For example, when the foldable screen electronic device is unfolded, the two ends of the display screen 2 will slide outward to a first position. At this time, the distance between the first side 2a of the display screen 2 and the side wall 11a of the first middle frame 11 is m, and the distance between the second side 2b of the display screen 2 and the side wall 12a of the second middle frame 12 is m. For an outward foldable screen electronic device, the distance between the first side 2a and the side wall 11a of the first middle frame 11, and the distance between the second side 2b and the side wall 12a of the second middle frame 12 are the smallest. For an inward foldable screen electronic device, the distance between the first side 2a and the side wall 11a of the first middle frame 11, and the distance between the second side 2b and the side wall 12a of the second middle frame 12 are the largest. A schematic diagram of the outward and inward foldable electronic devices after folding or unfolding can be found in the diagram. Figure 2 and Figure 3 This will not be elaborated further here. Similarly, please refer to the background technical description for the changes in the spacing between the display screen and the middle frame 11.

[0097] Please refer to this again. Figure 6Typically, both the first middle frame 11 and the second middle frame 12 have a frame body 10 on their first sides. The frame body 10 is located around the display screen 2, and the display screen 2 is located in the space enclosed by the frame body 10. Specifically, the first middle frame 11 and the second middle frame 12 have frame bodies 10 on their three sides, except for the side closest to the pivot 4. The frame body 10 of the first middle frame 11 includes three side portions 101, and adjacent side portions are connected by corner portions 102.

[0098] Please refer to this again. Figure 6 In this embodiment of the application, decorative elements 3 are typically provided on the first and second middle frames 11 and 12 to conceal the gap between the first side 2a and the side wall 11a of the first middle frame 11, and the gap between the second side 2b and the side wall 12a of the second middle frame 12. The first side 2a of the display screen 2 slides between the decorative element 3 and the first middle frame 11, and the second side 2b slides between the decorative element 3 and the second middle frame 12 on the other side.

[0099] Please refer to Figure 7 The display screen 2 includes a display module 22 and a transparent cover 21. The display module 22 can display images and videos, and can be made of liquid crystal display (LCD), organic light-emitting diode (OLED), active-matrix organic light-emitting diode (AMOLED), flexible light-emitting diode (FLED), quantum dot light-emitting diode (QLED), or electrophoretic display technology (E-Ink). Currently, most foldable electronic devices use OLED for their display screen 2. The transparent cover 21 covers the outside of the display module and protects it. The transparent cover 21 can be a glass cover, or other transparent materials that provide protection, such as transparent polyimide. The display screen 2 can also have touch functionality, meaning it can be a touchscreen.

[0100] Please refer to Figure 7Typically, the transparent cover plate 21 completely covers the display module 22, and the outer contour of the transparent cover plate 21 is larger than the outer contour of the display module 22. In the figure, the solid line represents the outer contour of the transparent cover plate 21, and the dashed line represents the outer contour of the display module. The transparent cover plate 21 has cover plate segments 211 extending out of the display module 22 and located on both sides. The cover plate segments 211 are slidably supported on the middle frame 1. For example, each middle frame has two stepped surfaces 113 in the S2 direction. Figure 8 (Only one stepped surface is shown in the image). The cover plate segment 211 of the transparent cover plate 21 is slidably supported on the stepped surface 113. Please refer to [the image / reference]. Figure 8 , Figure 8 for Figure 6 Exploded view at point A. The transparent cover 21 and the display module 22 can be fixed by adhesive, for example, by optically clear adhesive (OCA).

[0101] Please refer to Figure 8 and Figure 9 , Figure 8 for Figure 6 A partial decomposition diagram at point A in the middle. Figure 9 for Figure 6 A partial schematic diagram at point A shows a decorative element 3 supported on the first middle frame 11, primarily used to cover the gap between the first side 2a of the display screen 2 and the side wall of the first middle frame 11. The structure of the decorative element 3 on the second middle frame 12 can be the same as that of the decorative element 3 on the first middle frame 11, or it can be different.

[0102] Please refer to Figure 10 , Figure 10 for Figure 9 A DD cross-sectional view. In this embodiment, the decorative element 3 includes a first surface 31, which forms a partial appearance surface of the electronic device. For a foldable screen electronic device, at least when the display screen 2 is in the unfolded state, the appearance surface formed by the decorative element 3 is located outside the foldable screen electronic device. When the display screen 2 is in the folded state, the first surface 31 can be partially or completely folded inside the middle frame. In this embodiment, the first surface 31 and the display screen 2 are located on the same side of the middle frame 1. Figure 10 In this embodiment, the first surface 31 and the display screen 2 are located on the same side of the first middle frame 11. Typically, the middle frame 1 and the display screen 2 have different colors. To achieve a better visual effect on the outer surface of the electronic device, the first surface 31 can be treated with a two-color coating process. Under the action of the first surface 31, the overall appearance color of the electronic device gradually transitions from the display screen 2 to the middle frame 1.

[0103] The decorative element 3 also includes a second surface 32 and a mounting body 34. The second surface 32 is located on the side of the decorative element 3 opposite to the first surface 31. That is, the second surface 32 and the first surface 31 are located on opposite sides of the decorative element 3 along the thickness direction S3 of the decorative element 3. The mounting body 34 protrudes from the second surface 32, that is, the mounting body 34 extends from the second surface 32 toward the second side of the first middle frame 11. The mounting body 34 can be a columnar structure, and the specific structure of the mounting body 34 can be determined according to the specific structure of the electronic device.

[0104] In this embodiment, the first middle frame 11 has a through hole 115 that penetrates the thickness direction of the first middle frame 11. The electronic device also includes a limiting structure 5, which is fixedly connected to the first middle frame 11. The mounting body 34 is locked to the first middle frame 11 by the limiting structure 5 to restrict the movement of the mounting body 34 along a first direction, wherein the first direction is opposite to the assembly direction of the mounting body 34 (the direction of insertion through hole 115). The limiting structure 5 can be a block, a limiting pin, or an elastic protrusion. Of course, the limiting structure 5 can also be formed by structures on the mounting body 34 and the first middle frame 11.

[0105] In this embodiment, a through hole 115 is provided on the middle frame. The limiting structure 5 can be installed from the side away from the display screen 2 through the through hole 115 to lock the mounting body 34 to the first middle frame 11. This setting of the limiting structure 5 is highly flexible and does not affect the appearance surface of the first middle frame 11. After the mounting body 34 is locked to the first middle frame 11 by the limiting structure 5, the mounting body 34 can be prevented from detaching from the first middle frame 11, thereby improving the reliability of fixing the decorative part 3 to the first middle frame 11.

[0106] In addition, in this embodiment, the mounting body 34 of the decorative part 3 is at least partially located inside the through hole 115, or it can be completely located inside the first middle frame 11 without affecting the external structure of the first middle frame 11. The design flexibility of the first middle frame 11 can be relatively high, and the processing precision of the mounting body 34 can be relatively low, and the processing cost can be relatively low.

[0107] In this embodiment, the mounting body of the decorative part 3 can be engaged with the middle frame by the limiting structure 7, thereby restricting the mounting body 34 from detaching from the middle frame 1. For example, the mounting body 34 and the hole wall of the through hole 34 are connected by the limiting structure 7. The locking force of the fastening is relatively high, which can improve the reliability of fixing the decorative part 3.

[0108] In this embodiment, the mounting body 34 is at least partially located inside the through hole 115, that is, the mounting body 34 of the decorative piece 3 is located inside the through hole 115, and can be completely located inside the middle frame 1.

[0109] In this embodiment, the limiting structure 5 may include a block, which is at least partially located in the assembly path of the mounting body 34, and the block is limited by a connection to the wall of the through hole 115 to prevent the mounting body 34 from dislodging from the through hole 115. The block and the through hole 115 can be limited by adhesive or snap-fit, as long as the mounting body 34 and the first middle frame 11 are locked in place, preventing the mounting body 34 from dislodging from the through hole 115. The block limiting structure is simple and occupies little space.

[0110] In this embodiment, the block can be solidified and formed between the mounting body 34 and the first middle frame 11 using a fluid material. The fluid material is a material that can deform under certain conditions, such as glue, modeling clay, or a plastic. The glue can be acrylic resin quick-drying adhesive, epoxy resin AB glue, or polyurethane hot melt adhesive, etc., and the plastic can be polystyrene, polypropylene, or polyethylene, etc. Block

[0111] In this embodiment, after the mounting body 34 is installed on the first middle frame 11, fluid material is filled on the assembly path of the mounting body 34. After filling, it is solidified into a block. After the block is formed, it will hinder the movement of the mounting body 34 in the first direction, thereby inhibiting the mounting body 34 from coming out of the through hole and fixing the decorative part 3.

[0112] The filling fluid material and curing process can be used to form a block after the mechanical parts such as decorative part 3 are assembled. In this way, the assembly of decorative part 3 is not restricted by the positioning structure 5, and the installation is convenient.

[0113] Different fluid materials require different filling processes. For example, when the fluid material is glue, it can be injected into the corresponding positions of the mounting body 34 and the first middle frame 11 using a glue injection process. When the fluid material is plastic, it can be injected into the corresponding positions of the mounting body 34 and the first middle frame 11 using a plastic injection process. When the fluid material is clay, it can be extruded into the corresponding positions of the mounting body 34 and the first middle frame 11 using an extrusion process.

[0114] Please refer to Figure 10 The electronic device of this application also has a back cover 7, which is located on the side of the middle frame away from the display screen 2, that is, the back cover 7 is located on the second side of the middle frame 1. Both the first middle frame 11 and the second middle frame 12 are provided with a back cover 7, which is connected to the corresponding middle frame 1 by a snap or other means.

[0115] Please combine Figure 11 Understood, in this embodiment, the outer wall of the mounting body 34 has a recess 34a, the recess 34a has a first wall 341, the first wall 341 faces the display screen 2, and the first wall 341 engages with the block in a snap-fit ​​manner, such as... Figure 11As shown, the recessed portion 34a includes not only the first wall 341, but also a vertical wall 342 perpendicular to the first wall 341. The recessed portion 34a can be positioned as far as possible at the end of the mounting body 34 away from the second surface 31. After the block is formed, the first wall 341 abuts against the block to lock the position of the mounting body 34.

[0116] In this embodiment, a recessed portion 34a is machined on the mounting body 34 to form a first wall 341 that engages and snaps with the block. The structure is simple, the volume occupied by the mounting body 34 is small, and correspondingly, the size of the through hole 115 can also be small, occupying a small volume of the middle frame 1. The strength of the middle frame 1 can be relatively high, which is beneficial to improving the overall performance of the foldable screen electronic device.

[0117] Please combine Figure 10 and Figure 12 Understood, in this embodiment of the application, the wall of the through hole 34 has a recessed cavity 115a, and the block is simultaneously formed inside the receiving space enclosed by the recessed portion 34a and the recessed cavity 115a. The cavity wall of the recessed cavity 115a includes a second wall 115a1, which faces opposite to the first wall 341 and faces the second side of the first middle frame 11. The block is at least partially located between the first wall 341 and the second wall 115a1.

[0118] In this embodiment, the first wall 341 and the second wall 115a1 are two inverted surfaces. When the decorative piece 3 is subjected to external force, the block can abut against the first wall 341, inhibiting the first wall 341 from moving upward relative to the through hole 115. At the same time, the second wall 115a1 exerts a downward force on the block, which can offset part of the force exerted by the first wall 341 on the block. The above-mentioned structure of this application can provide huge resistance to deformation and form a reliable and stable fixed connection structure.

[0119] In this embodiment, the first wall 341 and the second wall 115a1 can both be planar and parallel to the display screen 2 in the unfolded state. Since both the first wall 341 and the second wall 115a1 are planar, the processing is relatively simple. Of course, the first wall 341 and the second wall 115a1 are not limited to planar surfaces; they can also be curved surfaces, such as arc surfaces.

[0120] Please refer to this again. Figure 12 In this embodiment, the middle frame further includes a second side. The first side and the second side are located on opposite sides of the middle frame along its thickness direction S3. The through hole 115 is a through hole that penetrates the thickness of the middle frame, that is, the through hole 115 extends from the first side of the middle frame to the second side. The through hole 115 includes a first opening end 115b and a second opening end 115c, located on the first side and the second side respectively. That is, the through hole 115 forms a first opening end 115b on the first side and a second opening end 115c on the second side. The recessed cavity 115a extends to the second opening end 115c, from...Figure 12 As can be seen, the through hole is a stepped hole. The through hole 115 includes a first hole section 1151 and a second hole section 1152 connected by the stepped surface. Please refer to [link / reference]. Figure 12 The first hole segment 1151 and the second hole segment 1152 are arranged and connected along the axial direction of the through hole 115. The hole segment between the two dashed lines is the first hole segment 1151. The recessed cavity 115a is part of the space corresponding to the stepped surface of the second hole segment 1152, that is, the second hole segment includes the recessed cavity 115a. The stepped surface faces the second opening end 115c, and the stepped surface is the second wall 115a1.

[0121] In this embodiment, the section of the first middle frame 11 with the through hole 115 has an inclined surface 116. Typically, the second side of the inclined surface 116 is inclined towards the pivot side, and the angle between the inclined surface 116 and the S3 direction can be determined according to the specific product. The extension direction of the through hole 115 is the same as the inclination direction of the inclined surface 116. This maximizes the wall thickness at the through hole 115 and ensures that the second opening end of the through hole 115 on the second side is located within the rear cover coverage area, preventing the through hole 115 from affecting the appearance of the middle frame 1. The design is simple. The extension line n of the hole wall of the through hole 115 does not intersect with the display screen 2, preventing interference between the mounting body 34 and the display screen 2 during installation. Please refer to... Figure 11 and Figure 12 understand.

[0122] Because the mounting body 34 is installed inside the through hole 115, when the through hole is tilted, the mounting body 34 also has an inclined section 343 adapted to the through hole 115. In one specific embodiment, the mounting body 34 further includes a vertical section 344, and the inclined section 343 is connected to the second surface 32 through the vertical section 344. Please refer to... Figure 11 understand.

[0123] Please refer to Figure 13 In this embodiment, the electronic device further includes an injection channel 115a0, which is formed between the mounting body 34 and the corresponding cavity wall 115a2 of the recessed cavity 115a. One end of the injection channel 115a0 connects to the receiving space, and the other end connects to the second opening. This allows adhesive to flow into the receiving space from between the mounting body 34 and the cavity wall 115a2 of the recessed cavity 115a, forming a block between the first wall 341 and the second wall 115a1. This eliminates the need for channels for fluid material injection at other locations on the middle frame, simplifying the manufacturing process of the middle frame 1 and improving its strength.

[0124] Please combine Figures 11 to 13In summary, in this embodiment, the mounting body 34 includes a first column segment 34-1 and a second column segment 34-2 connected to each other. The first column segment 34-1 is circumferentially fitted with the first hole segment 1151, and the second column segment 34-2 is located in the second hole segment 1152. A recessed portion 34a is located in the second column segment 34-2, and the recessed portion 34a and the recessed cavity 1152a of the second hole segment 1152 are arranged opposite to each other. Because the first column segment 34-1 and the first hole segment 1151 have matching shapes, they are basically fitted together circumferentially or interlocked. The gap is very small, so the adhesive cavity formed by the recessed part 34a and the recessed cavity 1152a is basically a closed structure on one side of the first hole section 1151. The injected adhesive will not flow between the first hole section 1151 and the first column section 34-1. The adhesive, plastic or putty and other fluid materials that enter from the second opening end will basically be between the recessed part 34a and the recessed cavity 1152a, which is conducive to improving the curing quality of the formed block, thereby improving the reliability of the mounting body 34 and the through hole 115.

[0125] Please refer to Figure 13 In this embodiment of the application, the second surface 32 has a support area 321 that supports the frame 10. The decorative part 3 also includes an extension section 315. The extension section 315 extends from the support area 321 toward the display screen 2. The corresponding side of the display screen 2 is located between the extension section 315 and the middle frame. That is to say, a space for the side of the display screen 2 to slide is formed between the extension section 315 and the middle frame 1.

[0126] In this embodiment, the frame 10 can provide a supporting foundation for the decorative part 3, making the installation of the decorative part 3 convenient.

[0127] Please refer to Figure 10 In this embodiment, the frame 10 can be slightly higher than the display screen 2, so that there can be a predetermined gap between the decorative part 3 and the display screen 2. An elastic buffer pad 6 can be provided on the surface of the extension section 315 facing the display screen 2. The elastic buffer pad 6 can be a component that provides cushioning and wear resistance, such as silicone, rubber, or film. The extension section 315 and the display screen 2 are in contact through the elastic buffer pad 6. This can reduce the wear of the extension section 315 on the display screen 2 and protect the display screen 2.

[0128] In this embodiment, an adhesive layer (not shown in the figure) may also be provided between the support area 321 and the frame 10. In this embodiment, the support area 321 of the decorative part 3 is further fixed to the middle frame by the adhesive layer, thereby improving the fixing reliability of the decorative part 3.

[0129] To maximize the bonding area between decorative element 3 and the first middle frame 11, please refer to... Figure 15The second surface 32 of the decorative element 3 also has a boss 36, which, as shown in the figure, comprises two sections: a first boss 361 and a second boss 362. The height of the first boss 361 is greater than the height of the second boss 362, and the heights of both the first boss 361 and the second boss 362 are less than the height of the mounting body 34. Please refer again. Figure 14 Correspondingly, the frame 10 is also provided with a groove 114. Specifically, the groove 114 also includes two sections: a first groove 1141 and a second groove 1142. The first boss 361 is inserted into the interior of the first groove 1141, and the second boss 362 is inserted into the interior of the second groove 1142. The interiors of the first groove 1141 and the second groove 1142 are both filled with adhesive to bond and fix the corresponding bosses and grooves.

[0130] Of course, the form of the boss 36 is not limited to the above-mentioned arrangement of the first boss 361 and the second boss 362. The structure and form of the boss 36 can be determined according to the specific product.

[0131] As mentioned above, the frame 10 includes side portions 101 and corner portions 102 connecting adjacent side portions 101. Please refer to [link / reference]. Figure 14 The frame 10 on the first middle frame 11 includes three side portions. The first groove 1141 can be located on one of the side portions 101, and the second groove 1142 is located at the corner portion 102. The first groove 1141 is located on the side portion 101, and the depth of the second groove 1142 is less than the depth of the first groove 1141 (see [reference]). Figure 14 Accordingly, the height of the first boss 361 is greater than the height of the second boss 362 (see...). Figure 15 For the mating relationship between the first groove 1141 and the first boss 361, please refer to [reference needed]. Figure 16 The mating relationship between the second groove 1142 and the second boss 362 is shown in the figure. Figure 10 .

[0132] Please combine Figure 9 and Figure 15 In the scenario where decorative element 3 is located on both sides, decorative element 3 includes a side segment 3-1 and a corner segment 3-2. The corner segment 3-2 is supported by the corner portion 102, and the side segment 3-1 is supported by the side portion 101. The side portion 101 and the side segment 3-1 can both be straight sections, while the corner segment 3-2 and the corner portion can be curved. The second boss 362 is mostly located on the corner segment 3-2. The figure shows the boundary lines a and b between the side segment 3-1 and the corner segment 3-2. The mounting body is usually located on the side segment 3-1.

[0133] Electronic devices are inevitably subject to accidental drops during use. Because the corners of electronic devices have a smaller contact area with the ground when falling, the impact force is relatively large, and the corners are more likely to be damaged. Therefore, this application also makes the following improvements to the structure of the electronic device.

[0134] Please refer to Figure 14 In this embodiment of the application, the depth of the second groove 1142 near the corner 102 of the electronic device is relatively shallow compared to other positions. This makes the strength of the middle frame at the corner relatively high, which is beneficial to improving the strength of the corner of the electronic device and the stress resistance of the corner.

[0135] In this embodiment, the second groove 1142 can extend to the side portion 101, and the through hole 115 is formed in the second groove 1142 and located in the side portion 101. This can improve the strength of the middle frame at the location where the through hole 115 is formed to a certain extent.

[0136] like Figure 15 As shown in the embodiment of this application, the groove sidewall 11421 of the second groove 1142 near the display screen 2 has a first notch 114c to avoid the display screen 2. In this embodiment, part of the groove sidewall 11421 of the second groove 1142 near the display screen 2 is removed to meet the installation requirements of the display screen 2.

[0137] In this embodiment, the through hole 114 is located at the bottom of the second groove 1142. That is to say, the thickness of the middle frame is relatively large at the location where the through hole 114 is opened, so as not to reduce the strength of the middle frame 1 to a certain extent.

[0138] In this embodiment, the number of mounting bodies 34 provided on the decorative part 3 can be one, two, or more, provided that the decorative part 3 is securely fixed and that the strength of the middle frame is not affected.

[0139] The first groove 1141 also has a second notch 114c on its sidewall, which serves as a reference structure for the filling device. In other words, the adhesive inside the first groove 1141 and the second groove 1142 can be filled by either injection or dispensing. The second notch 114c can serve as a working reference point for either injection or dispensing to allow for rapid injection or dispensing of adhesive into the groove.

[0140] In addition, please see Figure 17 This application also provides a method for assembling an electronic device, including:

[0141] S10. Pre-process electronic device components, including the middle frame 1, display screen 2, and decorative parts 3;

[0142] S11. Assemble the display screen 2 on the first side of the middle frame 1;

[0143] S12. Insert at least part of the mounting body 54 of the decorative piece 3 into the through hole 115 of the middle frame 1, and support the decorative piece 3 on the first side of the middle frame 1.

[0144] S13. A limiting structure 5 is installed on the side of the self-through hole 115 away from the display screen 2 so that the limiting structure 5 locks the mounting body 34 to the middle frame 1.

[0145] Specifically, step S13 includes:

[0146] Fluid material is injected between the mounting body 34 and the middle frame 1 and cured to form a limiting structure 5. Adhesive is injected between the mounting body 34 and the middle frame 1 and fixed to form a limiting structure.

[0147] After the fluid material has solidified, the following step S14 is performed: the back cover 7 is installed on the second side of the middle frame 1. The back cover 7 is used to cover the second opening end 115c of the through hole 115.

[0148] The assembly method of the electronic device in this application embodiment is based on the above-mentioned electronic device, so the assembly method also has the above-mentioned technical effects of the electronic device, which will not be described in detail here.

[0149] Please refer to Figure 18 and Figure 19 , Figure 18 This is a schematic diagram of the structure of an electronic device in another embodiment of this application. Figure 19 for Figure 18 A 3D schematic diagram of the decorative component.

[0150] Compared with the embodiments described above, in this embodiment, the outer wall surface 117 of the electronic device's frame 1 is a vertical surface, the mounting body 34 is also configured as a vertical guide post structure, and the recessed portion 34a can also be configured as a rectangular groove, making the design simpler. Other structures in this application are similar to... Figure 10 The examples shown are basically the same, so they will not be repeated here.

[0151] In addition, this application also provides another embodiment in which the mounting body 34 and the middle frame 1 are snap-fitted together.

[0152] Please refer to Figure 20 and Figure 21 , Figure 18 This is a schematic diagram of the structure of an electronic device in another embodiment of this application. Figure 19 for Figure 18 A schematic diagram before assembly.

[0153] In another embodiment of this application, with Figure 10The difference in structure shown is that, in this embodiment, the end 34-3 of the mounting body 34 furthest from the second surface 32, after plastic deformation, snaps into the snapping platform 115a3 on the wall of the through hole 115. Figure 21 This is a schematic diagram of the end 34-3 of the mounting body 34 before plastic deformation. Figure 20 This is a schematic diagram of a limiting structure in which the mounting body 34 is assembled onto the middle frame 1 and the end 34-3 is bent to form a snap-fit ​​with the snap-fit ​​platform 115a3. The snap-fit ​​platform 115a3 can be either an inclined surface or a flat surface. In this embodiment, the snap-fit ​​between the mounting body 34 and the through hole 115 is implemented in a simple way.

[0154] Of course, the decorative element 3 in this embodiment is not limited to foldable screen electronic devices, but can also be applied to non-foldable screen electronic devices. In non-foldable screen electronic devices, the decorative element 3 can cover the display screen 2, or it can not cover the display screen 2. The decorative element 3 is located on the periphery of the display screen 2, and the first surface 31 is in contact with the display screen 2 to form a partial appearance surface of the electronic device. Other structures of the decorative element 3 can be referred to the above embodiments.

[0155] For other structural details regarding electronic devices, please refer to current technology.

[0156] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0157] The directional terms mentioned in the embodiments of this application, such as "inner" and "outer", are only for reference to the direction of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0158] In the description of embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0159] In the embodiments of this application, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0160] The above are merely preferred embodiments of this application. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. An electronic device, comprising: The application relates to an electronic device, comprising: a middle frame having a through hole penetrating through the thickness direction of the middle frame; a display screen located on the first side of the middle frame; a decoration piece supported on the middle frame, the decoration piece comprising a first surface, a second surface and a mounting body, the first surface being used for forming a partial appearance surface of the electronic device, the second surface being located on the side of the decoration piece away from the first surface and between the first surface and the plane where the display screen is located, and the mounting body protruding from the second surface and at least partially located in the through hole; a limiting structure located on the side of the through hole away from the display screen, and the mounting body being locked with the middle frame through the limiting structure, wherein the limiting structure can be installed from the side of the through hole away from the display screen.

2. The electronic device of claim 1, wherein, The end of the mounting body away from the display screen is buckled and locked with the hole wall of the through hole through the limiting structure.

3. The electronic device of claim 2, wherein, The limiting structure comprises a block, which is at least partially located in the assembly path of the mounting body and is limitedly connected with the hole wall of the through hole to limit the mounting body from coming out of the through hole.

4. The electronic device of claim 3, wherein, The block is formed between the mounting body and the middle frame through solidification of fluid material.

5. The electronic device of claim 4, wherein, The block is one of a glue block, a plastic block and a rubber clay.

6. The electronic device of claim 3, wherein, The outer side wall of the mounting body has a recess, the hole wall of the through hole has a recess cavity, and the block is simultaneously formed in the contained space formed by the recess and the recess cavity.

7. The electronic device of claim 6, wherein, The recess has a first wall, the cavity wall of the recess cavity comprises a second wall, the first wall faces the display screen, the second wall faces away from the first wall, and the two walls are arranged along the thickness direction of the middle frame, and the block is at least partially located between the first wall and the second wall.

8. The electronic device of claim 7, wherein, The first wall and the second wall are both planes and are parallel to the display screen.

9. The electronic device of claim 7, wherein, The middle frame further comprises a second side, the first side and the second side are separately located on both sides of the middle frame along the thickness direction, the through hole comprises a first opening end and a second opening end located on the first side and the second side respectively, and the recess cavity extends to the second opening end.

10. The electronic device of claim 9, wherein, An injection channel is further formed between the mounting body and the corresponding cavity wall of the recess cavity, one end of the injection channel is communicated with the contained space, and the other end is communicated with the second opening end.

11. The electronic device of claim 10, wherein, Along the assembly direction of the mounting body, the through hole is a stepped hole, the stepped hole comprises a first hole section and a second hole section connected through a stepped surface, the second hole section comprises the recess cavity, the stepped surface is the second wall, the second wall faces the second opening end, the mounting body comprises a first column section and a second column section connected with each other, the first column section is circumferentially matched with the first hole section, the second column section is located in the second hole section, and the recess is located in the second column section.

12. The electronic device of claim 2, wherein, The end of the mounting body away from the second surface is plastically deformed to form the limiting structure to be buckled and locked with the hole wall.

13. The electronic device of any of claims 2 to 12, wherein, The section outer wall of the through hole provided by the middle frame has an inclined surface, the inclined surface has an included angle with the thickness direction of the middle frame, and the extension direction of the through hole is the same as the inclination direction of the inclined surface.

14. The electronic device of any one of claims 2 to 12, wherein, The decorative piece includes a side segment and a corner segment, the corner segment is connected to the end of the side segment along the length direction of the side segment, the side segment is a straight segment, and the mounting body is located on the side segment.

15. The electronic device of claim 14, wherein, Both ends of the side segment are connected with the corner segment, the number of the mounting body is at least two, and the end of the side segment close to the corner segment is provided with the mounting body.

16. The electronic device of any one of claims 1 to 12, wherein, The second surface has a support area supported by the middle frame. The decorative piece further includes an extension segment, the extension segment extends from the support area to the side of the display screen, and the corresponding side edge of the display screen is located between the extension segment and the middle frame.

17. The electronic device of claim 16, wherein, The surface of the extension segment facing the display screen is provided with an elastic buffer pad, and the extension segment contacts the display screen through the elastic buffer pad.

18. The electronic device of claim 16, wherein, The support area and the middle frame are provided with an adhesive layer.

19. The electronic device of claim 18, wherein, The second surface further has a boss, the height of the boss is less than the height of the mounting body, the middle frame is further provided with a groove, the boss is located inside the groove, and the boss and the groove are adhesively fixed.

20. The electronic device of claim 19, wherein, The first side of the middle frame has a raised frame body, the frame body is located at the periphery of the display screen, the frame body includes a side part and a corner part connected between adjacent side parts, the groove includes a first groove and a second groove, the first groove is located at the side part, the second groove is located at the corner part, the depth of the second groove is less than that of the first groove, along the length direction of the decorative piece, the boss includes a first boss and a second boss, which are respectively located in the first groove and the second groove, and the height of the first boss is higher than that of the second boss.

21. The electronic device of claim 20, wherein, The groove side wall of the second groove close to the side of the display screen has a first notch to avoid the display screen.

22. The electronic device of claim 20, wherein, The second groove partially extends to the side part, and the through hole is at least partially opened in the groove bottom of the second groove and located in the side part.

23. The electronic device of claim 20, wherein, The groove side wall of the first groove is further provided with a second notch, which is used as a reference structure for glue filling work of a glue filling device.

24. The electronic device of any one of claims 1 to 12, wherein, The electronic device is a folding screen electronic device, the folding screen electronic device includes a rotating shaft, both sides of the rotating shaft are provided with the middle frame, the display screen is slidingly supported on the two middle frames, and under the action of the rotating shaft, the two middle frames are relatively folded or unfolded to drive the display screen to reciprocally slide relative to the two middle frames. The side edges of the two middle frames parallel to the axial direction of the rotating shaft are provided with the decorative pieces to shield the gap between the corresponding side edges of the display screen and the middle frame.

25. A decorative element, installed on one side of an electronic device display screen, characterized in that, Comprise: A first surface for forming a partial appearance surface of the electronic device, and the first surface is located on the same side of the middle frame of the electronic device as the display screen; A second surface located on the side of the decorative piece away from the first surface; A mounting body protruding from the second surface, the mounting body is used to be arranged inside a through hole on the middle frame and locked with the middle frame through a limiting structure; The mounting body comprises a first column segment and a second column segment connected to each other, the second column segment is located at one end of the first column segment away from the second surface, the first column segment is used to be circumferentially matched with a corresponding hole segment of the through hole, and an outer circumferential wall of the second column segment is provided with a recess, and the limiting structure is at least partially located in the recess.

26. The trim piece of claim 25, wherein, The second surface has a support area supported on the middle frame. The decoration piece further comprises an extension segment, the extension segment extends from the support area to the side of the display screen, and is used to shield a gap between a corresponding side edge of the display screen and the middle frame.

27. The trim piece of claim 26, wherein, The decoration piece comprises a side edge segment and a corner segment, the corner segment is connected to an end of the side edge segment along a length direction of the side edge segment, the side edge segment is a straight line segment, and the mounting body is located on the side edge segment.

28. The trim piece of claim 27, wherein, The mounting body is arranged at least at a position where the side edge segment is close to the corner segment.

29. The trim piece of any one of claims 27-28, wherein, The support area further has a boss used to be adhesively fixed with a groove on the middle frame, and a height of the boss is less than a height of the mounting body.

30. The trim piece of claim 29, wherein, Along the length direction of the decoration piece, the boss comprises a first boss and a second boss, the first boss is located on the side edge segment, the second boss is located on the corner segment, and a height of the first boss is higher than that of the second boss.

31. A method of assembling an electronic device, comprising: The electronic device comprises a middle frame, a display screen, a decoration piece and a limiting structure, the middle frame has a through hole, the through hole penetrates through a thickness direction of the middle frame, the decoration piece comprises a mounting body, and the assembly method comprises: Assembling the display screen on a first side of the middle frame; Inserting the mounting body of the decoration piece into the through hole of the middle frame at least partially, and supporting the decoration piece on the first side of the middle frame; Mounting the limiting structure from a side of the through hole away from the display screen, so that the limiting structure locks the mounting body and the middle frame.

32. The method of assembly of claim 31, wherein, The limiting structure is formed by: Filling a fluid material between the mounting body and the middle frame, and solidifying to form the limiting structure.

33. The method of assembling an electronic device of claim 32, wherein, The electronic device further comprises a back cover, after the limiting structure is solidified, the following step is further performed: Mounting the back cover on a side of the middle frame away from the display screen.

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