Electronic device

Abstract

The application discloses an electronic device, which comprises a back shell with a receiving groove, a plastic middle frame located in the receiving groove and in contact with the groove wall of the receiving groove, and a metal reinforcing piece embedded in the frame of the plastic middle frame. By embedding the metal reinforcing piece in the frame of the plastic middle frame, the overall structural strength and rigidity of the plastic middle frame are significantly enhanced, so that the electronic device can better resist deformation and damage when subjected to external force impact such as falling and extrusion, and the durability and reliability of the electronic device are improved.

Description

Technical Field

[0001] This application relates to the field of electronic product technology, and in particular to an electronic device. Background Technology

[0002] In the prior art, the back cover of electronic devices is usually made of pure metal or pure plastic. However, the back cover of pure metal is heavy, and the electronic device will be subjected to a large impact when it is dropped. The back cover of pure plastic is light, but the structure is weak, resulting in insufficient strength of the back cover of the electronic device, easy damage, and low product reliability. Utility Model Content

[0003] The main technical problem addressed by this application is to provide an electronic device that solves the problem of low reliability in electronic device products.

[0004] To solve the above-mentioned technical problems, this application adopts a technical solution: an electronic device, the electronic device comprising: a back cover having a receiving groove; a plastic middle frame located in the receiving groove and in contact with the groove wall; and a metal reinforcing member embedded in the frame of the plastic middle frame.

[0005] The metal reinforcing member includes a top plate, a bottom plate, a first side plate, a second side plate, and two connecting plates. The top plate and the bottom plate are arranged opposite each other along a first direction, and the first side plate and the second side plate are arranged opposite each other along a second direction between the top plate and the bottom plate. The two connecting plates are connected at intervals along a third direction to the side of the first side plate away from the second side plate. A hollow cavity is formed between the top plate, the bottom plate, the first side plate, and the side plates. The cavity is for the frame of part of the plastic frame to be embedded. The first direction, the second direction, and the third direction are perpendicular to each other.

[0006] The top plate, the bottom plate, the first side plate, and the second side plate are each provided with a plurality of through holes, through which the material for making the plastic middle frame overflows into the cavity, so that the frame of the plastic middle frame wraps around the metal reinforcement.

[0007] The second side plate has an assembly groove on the side opposite to the first side plate. The electronic device also includes a magnetic suction component disposed in the assembly groove, which is used to attract a magnetic pen.

[0008] The metal reinforcement is provided with a plurality of mounting slots, which are spaced apart along the third direction on the side of the second side plate away from the first side plate.

[0009] The magnetic attractor has a first magnetic part and a second magnetic part that are connected to each other, and the first magnetic part and the second magnetic part have opposite magnetic properties.

[0010] The plastic frame has mounting grooves on the four corners facing away from the back cover. The electronic device also includes four corner pads, which correspond to the four corners of the plastic frame. Each corner pad is fixed to the mounting groove by an adhesive.

[0011] The bottom wall of the mounting groove is provided with a limiting protrusion, and the corner pad is provided with a limiting hole. The limiting hole allows the limiting protrusion on the corresponding mounting groove to extend into and hold the corner pad.

[0012] The electronic device further includes a display screen, which is fixedly connected to the side of the plastic frame away from the rear shell, wherein the display screen covers the end face of the receiving groove and is flush with the end face of the receiving groove.

[0013] The electronic device further includes: multiple functional components installed on the side of the plastic frame away from the rear shell, and the multiple functional components are electrically connected to the display screen.

[0014] Beneficial effects: By embedding metal reinforcing members inside the frame of the plastic frame, this application significantly enhances the overall structural strength and rigidity of the plastic frame, enabling electronic devices to better resist deformation and damage when subjected to external impacts such as drops and compression, thereby improving the durability and reliability of electronic devices. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0016] Figure 1 This is an exploded view of an electronic device provided in an embodiment of this application;

[0017] Figure 2 An exploded view of the plastic frame and metal reinforcement provided in an embodiment of this application;

[0018] Figure 3 This is a schematic diagram illustrating the connection between the plastic frame and the metal reinforcement in one embodiment of this application.

[0019] Figure 4 This is a schematic diagram of the structure of a metal reinforcement provided in an embodiment of this application;

[0020] Figure 5 A schematic diagram of the connection structure of the plastic frame, metal reinforcement and magnetic component provided in an embodiment of this application;

[0021] Figure 6 This is a schematic diagram of the connection structure between the metal reinforcing member and the magnetic suction member provided in an embodiment of this application;

[0022] Figure 7 This is a schematic diagram of the structure of a corner pad provided in one embodiment of this application;

[0023] Figure 8 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0025] The terms "first," "second," and "third" in this application are 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 as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indications also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0026] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0027] Please refer to the following: Figure 1 , Figure 2 and Figure 3 This application provides an electronic device 100, which includes a back cover 10, a plastic frame 20 and a metal reinforcement 30. The back cover 10 has a receiving groove 11, the plastic frame 20 is located in the receiving groove 11 and contacts the groove wall of the receiving groove 11, and the metal reinforcement 30 is embedded in the side frame 21 of the plastic frame 20.

[0028] Specifically, the back cover 10 forms part of the external structure of the electronic device 100, serving to protect internal components, provide aesthetic appeal, and support the overall structure. In one embodiment, the back cover 10 is made of metal, and flanges are formed on its four edges through a stamping process to create receiving grooves 11 within the flanges.

[0029] The receiving groove 11 is used to embed and fix the plastic middle frame 20. The receiving groove 11 precisely positions the plastic middle frame 20 within the back cover 10 and enhances the connection stability between the back cover 10 and the plastic middle frame 20. The plastic material of the plastic middle frame 20 is non-conductive, which can effectively isolate the internal circuits of the electronic device 100 from the metal components and prevent short circuits. At the same time, compared with the pure metal back cover structure of the prior art, the plastic middle frame 20, together with the back cover 10, helps to reduce the overall weight of the electronic device 100, achieving the functionality of the electronic device 100 while meeting the requirements of lightweight design.

[0030] The metal reinforcement 30 is embedded inside the frame 21 of the plastic inner frame 20. That is, during the injection molding process, the metal reinforcement 30 (such as a stainless steel sheet or iron sheet) is pre-embedded or encased in the plastic material. The metal reinforcement 30 can compensate for the deficiencies of the plastic inner frame 20 in terms of bending and torsional resistance, improve the overall rigidity of the plastic inner frame 20, and thus reduce the risk of deformation of the electronic device 100 when dropped or subjected to pressure. At the same time, without significantly increasing the size and weight of the electronic device 100, it achieves localized reinforcement of key parts of the electronic device 100, balancing the requirements of lightweight and high strength, and improving the product reliability of the electronic device 100.

[0031] In the aforementioned electronic device 100, by embedding a metal reinforcing member 30 inside the frame 21 of the plastic frame 20, the overall structural strength and rigidity of the plastic frame 20 are significantly enhanced, enabling the electronic device 100 to better resist deformation and damage when subjected to external impacts such as drops and compression, thereby improving the durability and reliability of the electronic device 100.

[0032] In one embodiment, the connection between the plastic inner frame 20 and the rear shell 10 can be by adhesive application, snap-fit ​​connection, or bolt connection, depending on the requirements, and is not limited here.

[0033] Please see Figure 3 In one embodiment, the metal reinforcement 30 is typically integrated into the plastic frame 20 via an insert injection molding process. This involves placing the pre-processed metal reinforcement 30 into a plastic mold, then injecting molten plastic into the mold. After cooling, the plastic frame 20 and the metal reinforcement 30 form an integrated structure, effectively reducing the width of the inner frame 21 of the plastic frame 20 and improving the connection strength between the metal reinforcement 30 and the plastic frame 20.

[0034] Please refer to the following: Figure 2 , Figure 3 and Figure 4 In one embodiment, the metal reinforcement 30 includes a top plate 31, a bottom plate 32, a first side plate 33, a second side plate 34, and two connecting plates 35. The top plate 31 and the bottom plate 32 are arranged opposite each other along a first direction X. The first side plate 33 and the second side plate 34 are arranged opposite each other along a second direction Y between the top plate 31 and the bottom plate 32. The two connecting plates 35 are spaced apart along a third direction Z on the side of the first side plate 33 away from the second side plate 34. A hollow cavity 36 is formed between the top plate 31, the bottom plate 32, the first side plate 33, and the side plates. The cavity 36 is for the frame 21 inside part of the plastic frame 20 to be embedded. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0035] Specifically, the hollow cavity 36 is a semi-enclosed space formed by the top plate 31, bottom plate 32, first side plate 33, and second side plate 34. This cavity 36 is used to accommodate part of the frame 21 structure of the plastic middle frame 20, achieving an embedded fit. The two connecting plates 35 are extension arm structures protruding from the side of the first side plate 33 away from the second side plate 34, which can serve as installation interfaces to connect with the plastic middle frame 20. During the injection molding process, molten plastic can flow into or surround the cavity 36, allowing the frame 21 material of the plastic middle frame 20 to embed into the metal reinforcement 30. A mechanical interlock is formed between the plastic middle frame 20 and the metal reinforcement 30, improving the bonding strength between the two.

[0036] In one embodiment, the top plate 31, bottom plate 32, first side plate 33, second side plate 34, and two connecting plates 35 are integrally formed, meaning the metal reinforcement 30 is a metal frame integrally stamped or bent, possessing high rigidity and impact resistance. The cooperation between the top plate 31, bottom plate 32, first side plate 33, second side plate 34, and two connecting plates 35 allows the metal reinforcement 30 to form a three-dimensional frame structure similar to a U-shape with extended arms, significantly improving the torsional and bending resistance of the plastic middle frame 20.

[0037] Please continue reading. Figure 2 , Figure 3 and Figure 4In one embodiment, the top plate 31, the bottom plate 32, the first side plate 33 and the second side plate 34 are each provided with a plurality of through holes 37. The through holes 37 allow the material for preparing the plastic middle frame 20 to overflow into the cavity 36, so that the frame 21 of the plastic middle frame 20 is wrapped around the metal reinforcement 30.

[0038] Specifically, during the injection molding process of the plastic frame 20, molten plastic material overflows from the through holes 37 on each plate of the metal reinforcement 30 into the cavity 36 of the metal reinforcement 30. After cooling and solidification, the plastic passing through the through holes 37 forms a structure similar to plastic studs, which fastens the metal reinforcement 30 to the frame 21 of the plastic frame 20. At this time, the frame 21 of the plastic frame 20 is not only embedded in the cavity 36 of the metal reinforcement 30, but also wraps around and penetrates the metal reinforcement 30 through the plastic studs formed by the through holes 37, forming a three-dimensional encapsulation structure, which improves the tensile, shear, and peel strength between the metal reinforcement 30 and the plastic frame 20.

[0039] In one embodiment, the through hole 37 can be any one of a circular hole, a rectangular hole, or an irregularly shaped hole, depending on the requirements, and is not limited here.

[0040] In one embodiment, a plurality of through holes 37 may be evenly distributed along the length direction of the top plate 31, the bottom plate 32, the first side plate 33, and the second side plate 34 to ensure that the metal reinforcement 30 is subjected to balanced forces. It is understood that the arrangement density of the through holes 37 can be increased in the stress concentration area of ​​the metal reinforcement 30, thereby improving the local strength of the metal reinforcement 30.

[0041] Please refer to the following: Figure 1 , Figure 4 , Figure 5 and Figure 6 In one embodiment, the second side plate 34 is provided with an assembly groove 38 on the side opposite to the first side plate 33. The electronic device 100 also includes a magnetic suction member 40, which is disposed in the assembly groove 38 and is used to attract the magnetic pen 50.

[0042] Specifically, the assembly groove 38 is typically an elongated groove with dimensions precisely matched to the magnetic chuck 40, used for positioning, fixing, and protecting the magnetic chuck 40. The metal reinforcement 30 serves as a rigid base, reducing the risk of deformation of the magnetic chuck 40, thereby achieving high-precision alignment and strong holding force for the magnetic pen 50 when it is stored in the electronic device 100.

[0043] Understandably, by utilizing the magnetic conductivity of the metal reinforcement 30 (e.g., iron sheet), the magnetic field lines of the magnetic attractor 40 are forced to be released from the exposed surface outside the assembly slot 38, forming a high-intensity magnetic field on the exposed surface, thereby enhancing the magnetic attraction force of the magnetic attractor 40.

[0044] Furthermore, since the magnetic 40 only needs to have one side exposed outside the assembly slot 38 to attract the magnetic pen 50, placing the magnetic 40 inside the assembly slot 38 allows the slot wall of the assembly slot 38 to shield the ineffective surface magnetic field of the magnetic 40, reducing the risk of the magnetic 40 interfering with the internal components of the electronic device 100.

[0045] It is understandable that during the injection molding process of the plastic frame 20, some injection molding material will overflow into the assembly groove 38, so there will be a layer of injection molding material between the magnetic part 40 and the side wall of the assembly groove 38.

[0046] Please refer to the following: Figure 1 and Figure 4 In one embodiment, the metal reinforcement 30 is provided with a plurality of mounting slots 38, which are spaced apart along the third direction Z on the side of the second side plate 34 opposite to the first side plate 33. A plurality of magnetic attractors 40 are installed in the plurality of mounting slots 38 to form a linear magnetic array, which can provide a continuous or segmented strong magnetic field to ensure that the magnetic pen 50 can be firmly attracted at different positions.

[0047] In this embodiment, the metal reinforcement 30 is provided with two spaced-apart mounting slots 38. Depending on the length of the magnetic pen 50, the number of mounting slots 38 can be set to three, four or other numbers, depending on the requirements, and is not limited here.

[0048] Please refer to the following: Figure 1 and Figure 6 In one embodiment, the magnetic attractor 40 has a first magnetic part 41 and a second magnetic part 42 connected to each other, with opposite magnetic properties. The magnetic attractor 40 constitutes a bipolar magnetic pair (e.g., N pole and S pole), forming a locally closed magnetic field loop. When the magnetic pen 50 approaches, the ferromagnetic material or magnet inside the magnetic attractor 40 is simultaneously subjected to attractive force and directional guiding force. Due to the alternating distribution of the first magnetic part 41 and the second magnetic part 42, the magnetic pen 50 is attracted to a specific position, reducing the risk of rotational deviation or lateral slippage of the magnetic pen 50. Compared to a monopolar magnet, the bipolar magnetic pair is more accurate.

[0049] In this embodiment, the magnetic chuck 40 is bipolar magnetized on the same surface (i.e., half N-pole and half S-pole on the same surface). By optimizing the magnetic field path through adjacent opposite pole distribution, magnetic leakage is significantly reduced, and the magnetic lines of force are concentrated on the adsorption surface of the magnetic chuck 40. The bipolar magnetization design of the magnetic chuck 40, combined with the encapsulation design of the metal reinforcement 30, can enhance the magnetic attraction force of the magnetic chuck 40, thereby reducing the size of the magnetic chuck 40 and alleviating the problem of the narrowing of the frame 21 of the electronic device 100 being constrained by the magnetic chuck 40.

[0050] Please refer to the following: Figure 1 and Figure 7In one embodiment, the four corners of the plastic frame 20 are provided with mounting grooves 22 on the side away from the back cover 10. The electronic device 100 also includes four corner pads 60, which are provided one-to-one with the four corners of the plastic frame 20. Each corner pad 60 is fixed to the mounting groove 22 by an adhesive (not shown).

[0051] Specifically, the corners of the electronic device 100 are the most vulnerable to impact. When the electronic device 100 falls, it usually lands at the corner and bears the greatest impact force. At this time, the corner pad 60 acts as the first point of contact to absorb the impact energy, reduce the stress transmitted to the internal structure of the electronic device 100, and thus reduce the risk of the plastic frame 20 cracking or deforming at the corner.

[0052] In one embodiment, the corner pad 60 is made of steel sheet. It is understood that the corner pad 60 may also be made of other metals or elastic materials, depending on the specific requirements, and no limitations are imposed here.

[0053] Please continue reading. Figure 1 and Figure 7 In one embodiment, the bottom wall of the mounting groove 22 is provided with a limiting protrusion 221, and the corner pad 60 is provided with a limiting hole 61. The limiting hole 61 allows the limiting protrusion 221 on the corresponding mounting groove 22 to extend into and hold the corner pad 60. The limiting protrusion 221 and the limiting hole 61 form a positioning guide, which improves the positional accuracy of the corner pad 60 during installation and reduces the risk of misalignment when the corner pad 60 is installed.

[0054] In one embodiment, the bottom wall of the mounting groove 22 may be provided with multiple limiting protrusions 221 to further enhance the torsional and shear resistance between the corner pad 60 and the plastic frame 20, forming a stable support.

[0055] Please refer to the following: Figure 1 and Figure 8 In one embodiment, the electronic device 100 further includes a display screen 70, which is fixedly connected to the side of the plastic frame 20 away from the rear shell 10. The display screen 70 covers the end face of the groove of the receiving groove 11 and is flush with the end face of the groove of the receiving groove 11.

[0056] Specifically, the display screen 70 is the main display component of the electronic device 100, used to display images. The display screen 70 is bridged to the back cover 10 via a plastic frame 20, improving the structural stability of the electronic device 100. Furthermore, the display screen 70 is rigidly supported by the plastic frame 20, and the metal reinforcement 30 inside the plastic frame 20 further enhances the bending resistance of the electronic device 100. Simultaneously, the flush arrangement of the display screen 70 with the edges of the back cover 10 reduces contact gaps between components visually, improving the dust and water resistance of the electronic device 100.

[0057] Please continue reading. Figure 1 and Figure 8 In one embodiment, the electronic device 100 further includes a plurality of functional components (not shown) mounted on the side of the plastic frame 20 away from the rear shell 10, and the plurality of functional components are electrically connected to the display screen 70 to realize the functional interaction between the functional components and the display screen 70.

[0058] In one embodiment, the functional components can be configured as a camera module, circuit board, control chip, microphone, speaker, etc. The functional components are integrated on the plastic frame 20, which can improve the overall integrity and stability of the electronic device 100.

[0059] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. An electronic device, characterized in that, The electronic device includes: The rear shell has a receiving groove; A plastic frame is located inside the receiving groove and in contact with the groove wall; A metal reinforcement is embedded inside the frame of the plastic inner frame.

2. The electronic device according to claim 1, characterized in that, The metal reinforcing member includes a top plate, a bottom plate, a first side plate, a second side plate, and two connecting plates. The top plate and the bottom plate are arranged opposite each other along a first direction. The first side plate and the second side plate are arranged opposite each other along a second direction between the top plate and the bottom plate. The two connecting plates are spaced apart along a third direction on the side of the first side plate away from the second side plate. A hollow cavity is formed between the top plate, the bottom plate, the first side plate, and the side plates. The cavity is for the frame inside the plastic frame to be embedded. The first direction, the second direction, and the third direction are perpendicular to each other.

3. The electronic device according to claim 2, characterized in that, The top plate, the bottom plate, the first side plate, and the second side plate are each provided with a plurality of through holes, through which the material for making the plastic middle frame overflows into the cavity, so that the frame of the plastic middle frame wraps around the metal reinforcement.

4. The electronic device according to claim 2, characterized in that, The second side plate has an assembly groove on the side opposite to the first side plate, and the electronic device further includes: A magnetic suction element is disposed in the assembly groove, and the magnetic suction element is used to attract a magnetic pen.

5. The electronic device according to claim 4, characterized in that, The metal reinforcement is provided with a plurality of mounting slots, which are spaced apart along the third direction on the side of the second side plate away from the first side plate.

6. The electronic device according to claim 4, characterized in that, The magnetic attractor has a first magnetic part and a second magnetic part connected to each other, and the first magnetic part and the second magnetic part have opposite magnetic properties.

7. The electronic device according to claim 1, characterized in that, The plastic frame has mounting slots at each of its four corners on the side opposite to the rear shell. The electronic device also includes: Four corner pads are provided, corresponding to the four corners of the plastic frame, and each corner pad is fixed to the mounting groove by an adhesive.

8. The electronic device according to claim 7, characterized in that, The bottom wall of the mounting groove is provided with a limiting protrusion, and the corner pad is provided with a limiting hole. The limiting hole allows the limiting protrusion on the corresponding mounting groove to extend into and hold the corner pad.

9. The electronic device according to claim 1, characterized in that, The electronic device also includes: The display screen is fixedly connected to the side of the plastic frame away from the rear shell, wherein the display screen covers the end face of the receiving groove and is flush with the end face of the receiving groove.

10. The electronic device according to claim 9, characterized in that, The electronic device also includes: Multiple functional components are installed on the side of the plastic frame away from the rear shell, and the multiple functional components are electrically connected to the display screen.

Images