Middle frame and electronic equipment

Abstract

The invention discloses a middle frame and electronic equipment. The middle frame comprises a middle plate and a frame. The middle plate comprises a first surface which is close to a rear shell of the electronic equipment; the frame is annularly arranged on the outer edge of the middle plate; the outer surface of the frame comprises a force exerting area, and the force exerting area protrudes in the direction away from the middle plate and is close to the first surface of the middle plate. The force exerting area is arranged at the position, close to the rear shell side, of the frame, and the grounding point can be translated from the gravity center line of the current whole machine to the rear shell side. The force exerting area protrudes towards the outside of the electronic equipment, and the thickness of the frame close to the rear shell side can be increased. Thus, the stress state of the middle frame can be changed, and when the electronic equipment falls off, falling impact force can be transmitted to the whole electronic equipment from the rear shell side, so that main stress of the electronic equipment is on the rear shell side, and extrusion of plastic deformation of the frame to a display screen is reduced. The stress on the display screen is reduced, so that the display screen can be prevented from cracking, the display screen is protected, and the impact resistance reliability is improved.

Description

Technical Field

[0001] This application relates to the field of terminal equipment technology, and more particularly to a mid-frame and electronic device. Background Technology

[0002] With societal development, electronic devices such as mobile phones and tablets have become indispensable products in our lives. Electronic devices include displays, which are made of glass and are relatively fragile.

[0003] In daily use, electronic devices inevitably slip from hands and fall. When an electronic device falls to the ground, especially when it lands on its side, the screen will be damaged or shattered due to the significant impact. This not only affects the appearance but can also render the electronic device unusable in severe cases. Summary of the Invention

[0004] This application provides a mid-frame and an electronic device to solve the problem that the display screen of an electronic device is easily broken when dropped.

[0005] In a first aspect, this application provides a mid-frame for use in an electronic device, comprising: a mid-plate and a frame. The mid-plate includes a first surface adjacent to the rear housing of the electronic device; the frame is disposed around the outer edge of the mid-plate; the outer surface of the frame includes a force-bearing area that protrudes away from the mid-plate and is adjacent to the first surface of the mid-plate.

[0006] The mid-frame provided in this application embodiment has its stress area positioned on the side of the frame near the rear shell, which shifts the point of impact from the center of gravity of the entire device towards the rear shell. The stress area protrudes outwards from the electronic device, increasing the thickness of the frame near the rear shell. This alters the stress state of the mid-frame, transferring the impact force from the rear shell to the entire device during a drop, thus concentrating the primary stress on the rear shell and reducing the pressure of the plastic deformation of the frame on the display screen. Reduced stress on the display screen prevents cracking, protecting it and improving its impact resistance and reliability.

[0007] In some implementations, the outer surface of the bezel is curved, and the vertex of the curved surface is close to the first surface along a first direction relative to the center of gravity of the electronic device. The point of force application in the stress zone is located at the vertex of the curved surface. The first direction is perpendicular to the first surface, and the center of gravity of the electronic device is parallel to the first surface. This way, the main stress point of the electronic device is on the back shell side, reducing the pressure of the plastic deformation of the bezel on the display screen and preventing the display screen from cracking.

[0008] In some implementations, along a first direction, there is a first distance between the vertex of the curved surface and the center line of gravity of the electronic device; the first distance is 0.2mm to 0.8mm. In this way, the point of impact can be shifted from the current center line of gravity of the whole device to the rear shell side by a first distance, allowing the impact force to be transmitted from the rear shell side to the whole electronic device.

[0009] In some implementations, the middle plate further includes: a first inclined surface located at the end of the middle plate that connects to the frame; a first endpoint of the first inclined surface connecting to the end surface of the middle plate, and a second endpoint of the first inclined surface connecting to the first surface; the first inclined surface abutting against the inner surface of the frame. This reduces the amount of alloy on the middle plate near the rear shell, making the stress area of ​​the frame more easily deformable.

[0010] In some implementations, the first inclined surface forms an angle with the first direction toward the first surface; the angle is 0° to 30°. This ensures the plastic thickness of the frame meets the wall thickness requirements, thereby preventing the frame from delaminating to the back cover.

[0011] In some implementations, the distance between the outer surface of the frame and the first inclined surface is greater than the distance between the outer surface of the frame and the end surface of the middle plate. In this way, the overall wall thickness of the frame is uneven, with the wall thickness of the frame near the rear shell being greater than the wall thickness of the frame near the display screen. This can create a force zone near the rear shell of the frame, thereby shifting the point of contact towards the rear shell.

[0012] In some implementations, along the direction of the electronic device's center of gravity, the projection point of the force-bearing area is located between the projection points of the first and second endpoints of the first inclined plane. Thus, when the electronic device falls, the force-bearing point contacts the ground, causing deformation in the force-bearing area. The first inclined plane of the middle plate avoids the force-bearing area, ensuring not only the wall thickness of the frame's force-bearing area but also maximizing the deformation of the force-bearing area, allowing the electronic device to tilt towards the rear shell during a fall.

[0013] In some implementations, the bezel further includes a first protrusion located at one end of the bezel away from the stress area; the middle plate further includes a second surface and a second protrusion, the second surface facing away from the first surface along a first direction, and the second protrusion located on the second surface; the second protrusion extends along the first direction away from the second surface into the first protrusion. This increases the alloy content on the display side, allowing the alloy's rigidity to support the area of ​​the bezel near the display side without deformation when the electronic device is dropped, thereby further reducing the stress on the display and preventing it from cracking due to impact.

[0014] In some implementations, the mid-frame is made of metal, while the frame is made of plastic. This allows the metal to increase the rigidity of the mid-frame, and the plastic to provide insulation for the various electronic components and to accommodate deformation during drops.

[0015] In a second aspect, this application provides an electronic device including a display screen, a rear cover, and a mid-frame as provided in the first aspect; the display screen and the rear cover are located on opposite sides of the mid-frame; the display screen is connected to the end of the frame near the second surface, and the rear cover is connected to the end of the frame near the first surface.

[0016] Understandably, the electronic devices provided in the above aspects are applied to the mid-frame provided above, and therefore, the beneficial effects they can achieve can be referred to the beneficial effects of the mid-frame provided above, which will not be repeated here. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application;

[0019] Figure 2 This is a diagram illustrating the state of an electronic device when it is dropped.

[0020] Figure 3 This is a schematic diagram of a partial cross-sectional structure of an electronic device;

[0021] Figure 4 This is a schematic diagram of a partial cross-sectional structure of an electronic device during a drop.

[0022] Figure 5 This is a diagram illustrating the effect of a display screen being subjected to different degrees of stress.

[0023] Figure 6 This is the first structural schematic diagram of the middle frame provided in the embodiments of this application;

[0024] Figure 7 This is a second structural schematic diagram of the middle frame provided in an embodiment of this application;

[0025] Figure 8 This is a schematic diagram illustrating the state of the electronic device provided in this application embodiment when it is dropped;

[0026] Figure 9 This is a comparative structural diagram of the mid-frame provided in the embodiments of this application and a commonly used mid-frame.

[0027] Illustration:

[0028] Among them, 10-display screen, 11-cover plate, 12-display module, 13-dispensing, 20-middle frame, 21-middle frame alloy, 22-middle frame plastic, 22a-appearance surface, 30-back shell, 40-middle frame, 101-middle plate, 101a-end surface, 1011-first surface, 1012-second surface, 1013-first inclined surface, 10131-first end point, 10132-second end point, 1014-second protrusion, 1015-extension, 102-frame, 102a-outer surface, 102b-inner surface, 1021-force zone, 1022-first protrusion. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are all within the protection scope of this application.

[0030] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0031] Furthermore, in this application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components shown in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the orientation of the components in the accompanying drawings.

[0032] The electronic devices described in this application include, but are not limited to, mobile phones, laptops, tablets, personal digital assistants, or wearable devices. The following description uses a mobile phone as an example.

[0033] Figure 1 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application; Figure 2 This is a schematic diagram illustrating the state of an electronic device when it is dropped.

[0034] like Figure 1 and 2As shown, the electronic device may include a display screen 10, a mid-frame portion 20, and a rear cover 30. The display screen 10 and the rear cover are located on opposite sides of the mid-frame portion 20. The display screen 10, the mid-frame portion 20, and the rear cover are sequentially fastened together to form a complete device cavity. The complete device cavity includes components such as a communication module, circuit board, battery, speaker assembly, and camera assembly, which are not listed here.

[0035] To facilitate the explanation of the positions of various components in the electronic device, this application embodiment exemplarily establishes a three-dimensional coordinate system based on the electronic device, wherein the x-axis direction is the width direction of the electronic device, the y-axis direction is the length direction of the electronic device, and the z-axis direction is the thickness direction of the electronic device.

[0036] Figure 3 This is a schematic diagram of a partial cross-sectional structure of an electronic device. Among them, Figure 3 Show Figure 1 The cross-sectional structure at one of the corners.

[0037] like Figure 3 As shown, the middle frame portion 20 includes a middle frame alloy 21 and a middle frame plastic 22, with the middle frame plastic 22 wrapping around the outer edge of the middle frame alloy 21.

[0038] The mid-frame alloy 21 is made of alloy material and is used to ensure the rigidity of the mid-frame portion 20; the deformation of the mid-frame alloy 21 is small or non-deformable, so that the mid-frame portion 20 as a whole does not deform. The mid-frame alloy 21 has a plate-like structure; however, in other embodiments, to ensure its own rigidity, the mid-frame alloy 21 may include an extension portion extending towards the rear shell 30 to improve the rigidity of the mid-frame portion 20. The mid-frame plastic 22 is made of plastic material and is used to meet the insulation requirements of electronic components inside the electronic device; the mid-frame plastic 22 will undergo plastic deformation under external force.

[0039] The display screen 10 includes a cover plate 11 and a display module 12. The display module 12 is fixed to one side of the mid-frame alloy 21, and the cover plate 11 covers the display module 12. The cover plate 11 is the exterior side of the display screen 10 and is typically made of glass. The cover plate 11 is connected to one edge of the mid-frame plastic 22 by adhesive dispensing 13. The back cover 30 is connected to the other edge of the mid-frame plastic 22.

[0040] Electronic devices are inevitably susceptible to slipping from your hand or falling during use. In particular, the four corners or sides of electronic devices are most likely to hit the ground first, leading to damage.

[0041] The outer surface 22a of the middle frame plastic 22 is the outer surface of the middle frame portion 20. The outer surface 22a of the middle frame plastic 22 is an arc surface, and the highest point A of the arc surface is located on the center of gravity line L0 of the electronic device. Here, the center of gravity line L0 is a line parallel to the y-axis direction where the center of gravity of the electronic device is located.

[0042] The center of gravity L0 of the electronic device can be located on the geometric center plane of the entire electronic device, that is, the center along the z-axis, or it can be located near the display screen 10. The highest point A on the outer surface 22a of the middle frame plastic 22 is taken as the landing point A. The landing point A may be near the display screen 10 or located in the middle of the outer surface 22a of the middle frame plastic 22.

[0043] Figure 4 This is a schematic diagram of a partial cross-sectional structure of an electronic device during a drop.

[0044] Combination Figure 3 and Figure 4 As shown, when the electronic device falls to the ground, the outer surface 22a of the mid-frame plastic 22 of the mid-frame portion 20 is the first to contact the ground.

[0045] Because the mid-frame plastic 22 undergoes plastic deformation and has a uniform thickness, the alloy content on the side of the mid-frame plastic 22 adjacent to the display screen 10 is low. When the mid-frame plastic 22 is subjected to an upward force from the ground, the deformation of the mid-frame plastic 22 causes the end adjacent to the display screen 10 to slightly flare outward; and due to the inertia of landing, the cover plate 11 moves downward.

[0046] During the drop, due to the deformation of the mid-frame plastic 22 and the inertia of the glass cover 11, the central area of ​​the display screen 10 arches outward upon impact with the ground. Simultaneously, the edges of the display screen 10 are bonded to the mid-frame plastic 22 via adhesive 13, preventing the edges of the cover 11 from arching outward like the central area of ​​the display screen 10 under the tension of the adhesive 13. This results in significant localized deformation of the cover 11 at its corners.

[0047] For example, the position where the cover plate 11 is connected to the adhesive 13 will not deform due to tension, while the adjacent area B where the cover plate 11 is not connected to the adhesive 13 will undergo local deformation, with area B arching outward to a large extent, and cracking in severe cases.

[0048] Figure 5 This is an image showing the effect of a display screen being subjected to different degrees of stress.

[0049] like Figure 5 As shown, when an electronic device falls to the ground, area B of the display screen 10 will be subjected to varying degrees of stress P. i This causes the display screen 10 to deform to varying degrees.

[0050] Reference Figure 5 As indicated by the arrows, the stress is higher closer to the center of region B. This results in a greater degree of bending of the display screen 10, making it more prone to cracking.

[0051] See you again Figure 2When an electronic device falls to the ground, regardless of whether the landing point A is in the middle of the outer surface 22a of the plastic frame 22 or near the display screen 10, due to the characteristics of the display screen 10 side (such as the inertia of the cover plate 11 and the pulling force of the adhesive 13 mentioned above), the electronic device will tilt towards the display screen 10 side, causing the side of the electronic device near the display screen 10 at a certain corner to contact the ground first and be more easily deformed by force.

[0052] It is evident that when electronic devices are dropped, especially when they land on their sides, the display screen 10 can be damaged or shattered due to significant impact, such as cracks in the cover glass. This not only affects the aesthetics but can also render the electronic device unusable, greatly reducing the user experience.

[0053] To prevent the display screen from breaking upon impact, this application provides a mid-frame that allows the area near the rear shell side of the mid-frame to be the impact point during a drop, effectively protecting the display screen from stress and preventing it from breaking.

[0054] Figure 6 This is the first structural schematic diagram of the middle frame provided in the embodiments of this application. Wherein, Figure 6 The cross-sectional structure of a corner of an electronic device is shown.

[0055] like Figure 6 As shown, in some embodiments, the mid-frame 40 provided in this application embodiment is applied to an electronic device. The mid-frame 40 may include a mid-plate 101 and a border 102.

[0056] The middle plate 101 is made of metal, such as an alloy. The middle plate 101 is used to ensure the rigidity of the middle frame 40; the plastic deformation of the middle plate 101 is small or non-existent, so that the middle frame 40 as a whole does not deform.

[0057] The frame 102 is made of plastic to meet the insulation requirements of electronic components inside electronic devices; the frame 102 will undergo plastic deformation when subjected to external force.

[0058] The frame 102 is arranged around the outer edge of the middle plate 101. The frame 102, made of plastic, surrounds the outer edge of the middle plate 101, which is made of alloy. The frame 102 has an approximately ring-shaped structure.

[0059] Figure 7 This is a second structural schematic diagram of the middle frame provided in the embodiments of this application.

[0060] like Figure 7 As shown in (a), in some embodiments, the middle plate 101 includes a first surface 1011 and a second surface 1012, the first surface 1011 being close to the rear cover 30 of the electronic device and the second surface 1012 being close to the display screen 10 of the electronic device.

[0061] The first surface 1011 faces away from the second surface 1012 along a first direction. The first surface 1011 and the second surface 1012 are parallel and parallel to the y-axis direction. The first direction is the thickness direction of the middle frame 40, i.e., the thickness direction of the electronic device, and the first direction is parallel to the z-axis direction.

[0062] Combination Figure 6 and Figure 7 As shown in (b), the outer surface 102a of the frame 102 is the outer surface of the middle frame 40. The outer surface 102a of the frame 102 includes a force area 1021, which protrudes in a direction away from the middle plate 101 and is close to the first surface 1011 of the middle plate 101.

[0063] The contact area 1021 is the contact area of ​​the frame 102. The contact area 1021 protrudes outward from the electronic device, so that the wall thickness of the frame 102 increases only in the contact area, that is, the frame 102 has a non-uniform thickness. Furthermore, the contact area 1021 is close to the rear shell 30 side of the electronic device.

[0064] Figure 8 This is a schematic diagram of the state of the electronic device provided in the embodiments of this application when it is dropped.

[0065] like Figure 8 As shown, when the electronic device is dropped, the impact area 1021 of the frame 102 protrudes outward and contacts the ground first. The impact area 1021 is made of plastic and deforms under impact, causing the rear shell 30 side of the frame 102 to deform and collapse, which can deflect the impact area of ​​the electronic device towards the rear shell 30 side. In other words, during the drop, the electronic device tilts towards the rear shell 30 side.

[0066] This reduces the impact force of the ground on the display screen 10, thereby reducing the stress on the display screen 10 and protecting it.

[0067] The mid-frame 40 provided in this embodiment has its impact zone 1021 positioned on the side of the frame 102 near the rear shell 30, shifting the point of impact from the center line of the entire device towards the rear shell 30. The impact zone 1021 protrudes outwards from the electronic device, increasing the thickness of the frame 102 near the rear shell 30. This alters the stress state of the mid-frame 40, allowing the impact force to be transferred from the rear shell 30 to the entire electronic device when it is dropped, thus concentrating the main stress on the rear shell 30 and reducing the pressure exerted on the display screen 10 by the plastic deformation of the frame 102. Reduced stress on the display screen 10 prevents cracking, protecting it and improving its impact resistance and reliability.

[0068] See you again Figure 6In some embodiments, the outer surface 102a of the border 102 is a curved surface, and the vertex of the curved surface is the highest point of the curved surface. The curved surface includes multiple smoothly connected arc surfaces, and the highest point of the curved surface is located on one of the arc surfaces.

[0069] The vertex of the curved surface is closer to the first surface 1011 along the first direction (z-axis direction) relative to the center of gravity L0 of the electronic device. That is, the highest point of the curved surface is closer to the rear shell 30 side of the electronic device relative to the center of gravity L0. The first direction is perpendicular to the first surface 1011, and the center of gravity L0 of the electronic device is parallel to the first surface 1011. The definition of the center of gravity L0 can be referred to the above content, and will not be repeated here.

[0070] The highest point of the force zone 1021 is the force point C. The force point of the force zone 1021 is located at the vertex of the surface. That is, the highest point of the surface is taken as the force point C of the force zone 1021, which can also be called the landing point.

[0071] Along the first direction, there is a first distance H1 between the vertex of the curved surface and the center line L0 of the electronic device; that is, there is a first distance H1 between the point of force C of the force area 1021 and the center line L0 of the electronic device. For example, the first distance H1 is 0.2mm to 0.8mm.

[0072] In this way, the point of impact can be shifted H1 from the current center line of gravity of the entire device towards the rear shell 30 side, allowing the impact force to be transferred from the rear shell 30 side to the entire device. The main stress point of the electronic device is on the rear shell 30 side, which can reduce the pressure of the plastic deformation of the frame 102 on the display screen 10 and prevent the display screen 10 from cracking.

[0073] See you again Figure 7 As shown in (a), in some embodiments, the middle plate 101 may further include a first inclined surface 1013, which is located at the end of the middle plate 101 that is connected to the frame 102.

[0074] In this way, reducing the alloy on the side of the middle plate 101 near the rear shell 30 makes the stress area 1021 of the frame 102 easier to deform.

[0075] The first inclined surface 1013 may include a first endpoint 10131 and a second endpoint 10132. The first endpoint 10131 of the first inclined surface 1013 is connected to the end surface 101a of the middle plate 101, and the second endpoint 10132 of the first inclined surface 1013 is connected to the first surface 1011.

[0076] For example, if the middle plate 101 has a structure including an extension portion 1015, the extension portion 1015 extends toward the rear shell 30. Then the second end point 10132 of the first inclined surface 1013 is connected to the first surface 1011 corresponding to the extension portion 1015. If the middle plate 101 has a planar structure toward the rear shell 30 (not shown in the figure), the first inclined surface 1013 can be regarded as a chamfer at a corner of the middle plate 101, then the second end point 10132 of the first inclined surface 1013 is connected to the first surface 1011 of the middle plate 101.

[0077] See you again Figure 7 As shown in (b), the first inclined surface 1013 abuts against the inner surface 102b of the frame 102. The structure of the inner surface 102b of the frame 102 is adapted to the end structure of the middle plate 101 so as to facilitate the seamless connection between the frame 102 and the middle plate 101 and ensure the reliability of the middle frame 40.

[0078] The first inclined surface 1013 is inclined relative to the first direction, and the first inclined surface 1013 forms an angle α with the first direction toward the first surface 1011. For example, the angle α is 0° to 30°. In this way, the plastic thickness of the frame 102 can be guaranteed to meet the wall thickness requirements, thereby preventing the frame 102 from delaminating with the back cover 30.

[0079] Because plastic is more easily deformed by compression than alloy, to ensure that the stress area 1021 of the frame 102 deforms more easily during a drop, the alloy of the middle plate 101 near the rear shell 30 can be changed from the commonly used arc structure (such as... Figure 3 The structure shown is changed to an angled structure, which is equivalent to replacing part of the alloy on the 30 side of the rear shell with plastic.

[0080] Thus, during the fall, combined Figure 8 As shown, when the plastic on the back cover 30 side is squeezed, the entire electronic device deflects towards the back cover 30 side, thereby reducing the force on the display screen 10 and effectively reducing the cracking of the display screen 10 due to impact.

[0081] In some embodiments, the overall wall thickness of the frame 102 is not uniform. The wall thickness of the frame 102 can be represented by the distance between the outer surface 102a and the inner surface 102b, that is, by the distance between the outer surface 102a of the frame 102 and the outer surface of the middle plate 101. The outer surface of the middle plate 101 includes the end surface 101a of the middle plate 101 and the first inclined surface 1013.

[0082] The distance H2 between the outer surface 102a of the frame 102 and the first inclined surface 1013 is greater than the distance H3 between the outer surface 102a of the frame 102 and the end surface 101a of the middle plate 101.

[0083] Figure 9This is a comparative structural diagram of the mid-frame provided in the embodiments of this application and a commonly used mid-frame.

[0084] like Figure 9 As shown, the frame 40 provided in this application embodiment has a frame 102 with an uneven wall thickness. Compared with the uniform wall thickness of the frame plastic 22 of the commonly used frame part 20, the outer surface 102a of the frame 102 extends outward relative to the outer surface 22a of the frame plastic 22. Furthermore, the wall thickness of the frame 102 near the rear shell 30 is greater than the wall thickness of the frame 102 near the display screen 10.

[0085] In this way, a stress zone 1021 can be formed on the side of the frame 102 near the back cover 30, and the stress zone 1021 of the frame 102 protrudes outward from the electronic device. By shifting the point of impact towards the back cover 30, that is, from point A to point C, the stress state of the middle frame 40 is changed. When the electronic device is dropped, the impact force of the drop can be transferred from the back cover 30 side to the entire electronic device, so that the main force of the electronic device is on the back cover 30 side, reducing the pressure of the plastic deformation of the frame 102 on the display screen 10.

[0086] See you again Figure 6 and Figure 7 In some embodiments, along the direction of the center of gravity line of the electronic device, the projection point of the force point of the force area 1021 is located between the projection point of the first endpoint 10131 and the projection point of the second endpoint 10132 of the first inclined plane 1013.

[0087] The center of gravity line of the electronic device is parallel to the y-axis. Along the y-axis, the point of force C of the force area 1021 is located between the first endpoint 10131 and the second endpoint 10132 of the first inclined surface 1013, so that the first inclined surface 1013 of the middle plate 101 avoids the force area 1021.

[0088] Thus, when the electronic device falls, the point of impact C contacts the ground, causing the impact area 1021 to deform. The first inclined surface 1013 of the middle plate 101 avoids the impact area 1021, which not only ensures the wall thickness of the impact area 1021 of the frame 102, but also ensures the maximum deformation of the impact area 1021, so that the electronic device can tilt towards the rear shell 30 during the fall.

[0089] In some implementations, the bezel 102 may also include a first protrusion 1022, which is located at one end of the bezel 102 away from the force field 1021. The first protrusion 1022 is used for user mounting of the display screen 10, i.e., the cover plate 11 of the display screen 10 is bonded to the first protrusion 1022 by adhesive 13.

[0090] The middle plate 101 may also include a second protrusion 1014, which is located on the second surface 1012 of the middle plate 101 and extends in the first direction away from the second surface 1012 into the first protrusion 1022.

[0091] The second protrusion 1014 and the middle plate 101 are an integral structure, and both are made of metal.

[0092] This increases the alloy content on the side of the display screen 10. When the electronic device is dropped, the rigidity of the alloy can be used to support the area of ​​the frame 102 near the display screen 10 without deformation, thereby further reducing the stress on the display screen 10 and preventing the display screen 10 from cracking due to impact.

[0093] This application also provides an electronic device, including a display screen 10, a back cover 30, and a mid-frame 40 as provided in any of the foregoing embodiments; the display screen and the back cover are located on opposite sides of the mid-frame 40; the display screen is connected to the end of the frame 102 near the second surface 1012, and the back cover is connected to the end of the frame 102 near the first surface 1011.

[0094] It should be noted that the structure of the electronic device can be referred to the above. Figure 1 The structure of the electronic device shown can be referenced from the aforementioned description, specifically the structure of the middle frame 40. Figures 6 to 9 The structural details of the middle frame 40 shown are not elaborated here.

[0095] The electronic device provided in this application embodiment can have an outwardly protruding force-bearing area 1021 on the edge 102 of the middle frame 40, close to the rear shell 30. This force-bearing area 1021 can alter the stress state of the middle frame 40. When the electronic device is dropped, the impact force can be transferred from the rear shell 30 side to the entire electronic device, ensuring that the main stress is on the rear shell 30 side, reducing the pressure of plastic deformation of the edge 102 on the display screen 10. Reduced stress on the display screen 10 prevents cracking, protecting the display screen 10 and improving its impact resistance reliability.

[0096] It should be noted that those skilled in the art, upon considering the specification and practicing the application disclosed herein, will readily conceive of other embodiments of this application. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope of this application is indicated by the following claims.

[0097] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A mid-frame, used in electronic devices, characterized in that, include: The middle plate (101) includes a first surface (1011) adjacent to the rear shell of the electronic device; A frame (102) is arranged around the outer edge of the middle plate (101); the outer surface (102a) of the frame (102) includes a force area (1021) which protrudes in a direction away from the middle plate (101) and is close to the first surface (1011) of the middle plate (101).

2. The middle frame according to claim 1, characterized in that, The outer surface (102a) of the frame (102) is a curved surface, and the vertex of the curved surface is close to the first surface (1011) along the first direction relative to the center line of gravity of the electronic device. The point of force of the force area (1021) is located at the vertex of the curved surface. Wherein, the first direction is perpendicular to the first surface (1011), and the center of gravity line of the electronic device is parallel to the first surface (1011).

3. The middle frame according to claim 2, characterized in that, Along the first direction, there is a first distance between the vertex of the surface and the center line of gravity of the electronic device; The first distance is 0.2mm to 0.8mm.

4. The middle frame according to claim 3, characterized in that, The middle plate (101) further includes: a first inclined surface (1013), the first inclined surface (1013) being located at the end of the middle plate (101) that is connected to the frame (102); The first end point (10131) of the first inclined surface (1013) is connected to the end surface (101a) of the middle plate (101), and the second end point (10132) of the first inclined surface (1013) is connected to the first surface (1011). The first inclined surface (1013) abuts against the inner surface of the frame (102).

5. The middle frame according to claim 4, characterized in that, The first inclined surface (1013) forms an angle with the first direction toward the first surface (1011); The included angle is 0° to 30°.

6. The middle frame according to claim 5, characterized in that, The distance between the outer surface (102a) of the frame (102) and the first inclined surface (1013) is greater than the distance between the outer surface (102a) of the frame (102) and the end surface (101a) of the middle plate (101).

7. The middle frame according to claim 6, characterized in that, Along the direction of the center of gravity line of the electronic device, the projection point of the force area (1021) is located between the projection point of the first endpoint (10131) and the projection point of the second endpoint (10132) of the first inclined plane (1013).

8. The middle frame according to claim 2, characterized in that, The frame (102) further includes a first protrusion (1022), which is located at one end of the frame (102) away from the force area (1021); The middle plate (101) further includes a second surface (1012) and a second protrusion (1014), the second surface (1012) being opposite to the first surface (1011) along the first direction, and the second protrusion (1014) being located on the second surface (1012); The second protrusion (1014) extends in the first direction away from the second surface (1012) into the first protrusion (1022).

9. The middle frame according to claim 1, characterized in that, The middle plate (101) is made of metal; The frame (102) is made of plastic.

10. An electronic device, characterized in that, Includes a display screen, a back cover, and a mid-frame as described in any one of claims 1-9; The display screen and the rear shell are located on opposite sides of the middle frame; The display screen is connected to the end of the frame (102) near the second surface (1012), and the rear shell is connected to the end of the frame (102) near the first surface (1011).

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