Manufacturing method of middle frame, middle frame, metal piece and electronic device

Abstract

Embodiments of the present application provide a middle frame manufacturing method, a middle frame, a metal piece and an electronic device. The middle frame manufacturing method comprises: obtaining a metal piece, the metal piece comprising a main body structure and a connecting structure, the main body structure comprising a middle part and a peripheral part, the peripheral part comprising a first part and a second part arranged separately, the first part being arranged separately from the middle part, the second part being connected to the middle part, the first part and the second part being connected to the connecting structure; arranging a first plastic piece on the metal piece, so that at least one of the middle part and the second part is connected to the first part through the first plastic piece; removing the connecting structure of the metal piece; and arranging a second plastic piece on the peripheral part of the metal piece after removing the connecting structure, to form a middle frame. The connecting structure in the main body structure does not need to be cut off by CNC precision machining, only the connecting structure outside the main body structure needs to be cut off, the machining precision requirement is low, the connecting structure can be cut off quickly, the production efficiency is improved, and the cost is reduced.

Description

Technical Field

[0001] This application relates to the field of electronic device frame technology, and more particularly to a method for manufacturing a frame, a frame, a metal part, and an electronic device. Background Technology

[0002] In related technologies, many electronic devices use a unibody frame, which consists of die-cast metal and outer plastic parts. The die-cast metal contains the antenna. In the die-casting process, the outer antenna is connected to the metal body through internal metal connectors. Then, through injection molding, the antenna is wrapped in plastic. Finally, computer digital control (CNC) precision machinery is used to disconnect the internal connectors, thus completing the antenna function. This results in a higher cost for unibody frames. Summary of the Invention

[0003] This application provides an electronic device and a distance detection method that can quickly determine the position information of the second housing relative to the first housing.

[0004] In a first aspect, embodiments of this application provide a method for manufacturing a mid-frame, comprising:

[0005] Obtain a metal part, the metal part including a main structure and a connecting structure, the main structure including a middle part and a peripheral part, the peripheral part being disposed around the middle part, the peripheral part including a first part and a second part separately disposed, the first part being separately disposed from the middle part, the second part being connected to the middle part, the connecting structure being disposed on the side of the peripheral part away from the middle part, and both the first part and the second part being connected to the connecting structure;

[0006] A first plastic part is provided on the metal part so that at least one of the middle part and the second part is connected to the first part through the first plastic part;

[0007] Remove the connecting structure of the metal part; and

[0008] A second plastic part is provided around the periphery of the metal part after the connecting material structure is removed to form a middle frame.

[0009] Secondly, this application also provides a mid-frame, which includes:

[0010] A metal plate includes a middle portion and a peripheral portion, the peripheral portion being disposed around the middle portion, the peripheral portion including a first part and a second part that are separately disposed, the first part being separately disposed from the middle portion, and the second part being connected to the middle portion;

[0011] A first plastic component, one end of which is connected to a first part, and the other end of which is connected to at least one of a second part and a middle part; and

[0012] A second plastic component is disposed around the metal plate.

[0013] Thirdly, this application also provides a metal component, comprising:

[0014] The main structure includes a central portion and a peripheral portion, the peripheral portion surrounding the central portion and forming the antenna radiator of the mid-frame. The peripheral portion includes a first part and a second part that are disconnected from the central portion; the first part is separate from the central portion, and the second part is connected to the central portion.

[0015] A connecting structure is provided on the periphery away from the middle part, and both the first part and the second part are connected to the connecting structure.

[0016] Fourthly, this application also provides an electronic device comprising:

[0017] The middle frame is the middle frame described above; and

[0018] The radio frequency circuit is connected to the first part of the middle frame.

[0019] In this embodiment, the metal part includes a main structure and a connecting structure. The main structure includes a middle portion and a peripheral portion, with the peripheral portion surrounding the middle portion. The peripheral portion includes a first part and a second part that are separately disposed. The first part is separate from the middle portion, and the second part is connected to the middle portion. The connecting structure is disposed on the side of the peripheral portion away from the middle portion, and both the first part and the second part are connected to the connecting structure. The middle section can serve as the antenna ground, the first section can serve as the antenna radiator, the second section connects to the middle section, and the connecting structure connects both the first and second sections. The second section then connects to the middle section, thus connecting all components of the main structure to the connecting structure. No component, like the second section, will detach. A first plastic component is placed on the metal part, and one of the second or middle sections is connected to the first section via this first plastic component. Then, the connecting structure is removed. At this point, the first section, serving as the antenna radiator, can be separated from the middle section, which serves as the ground. The middle section is connected to either the second or middle section via the non-conductive first plastic component. This eliminates the need for CNC precision machining to remove the connecting sections within the main structure; only the connecting structures outside the main structure need to be removed. This reduces machining precision requirements, allows for rapid removal of the connecting structures, improves production efficiency, and reduces costs. Attached Figure Description

[0020] 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.

[0021] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0022] Figure 1 A flowchart illustrating the method for manufacturing the middle frame provided in this application embodiment.

[0023] Figure 2 This is a schematic diagram of the structure of the metal part provided in the embodiment of this application.

[0024] Figure 3 for Figure 2 An enlarged schematic diagram of part A of the metal component shown.

[0025] Figure 4 This is a schematic diagram of the structure of the first plastic part provided in an embodiment of this application.

[0026] Figure 5 This is a schematic diagram of the structure of the metal part and the first plastic part provided in the embodiments of this application.

[0027] Figure 6 for Figure 5 The diagram shown is an enlarged view of part B in the metal part and the first plastic part.

[0028] Figure 7 This is a schematic diagram of the structure of the metal part and the first plastic part after removing the connecting material structure, as provided in the embodiments of this application.

[0029] Figure 8 for Figure 7 The diagram shows an enlarged view of part C in the metal part and the first plastic part after the connecting material structure has been removed.

[0030] Figure 9 This is a schematic diagram of the structure of the second plastic part provided in an embodiment of this application.

[0031] Figure 10 This is a schematic diagram of the structure of the middle frame provided in an embodiment of this application.

[0032] Figure 11 for Figure 10 An enlarged schematic diagram of part D in the middle box shown.

[0033] Figure 12 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0034] 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 them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0035] This application provides a method for manufacturing a mid-frame 11, which should be placed in an electronic device, including but not limited to mobile terminals such as mobile phones and tablets, or other portable electronic devices. Please refer to... Figure 1 , Figure 1 A flowchart illustrating a method for manufacturing a mid-frame according to an embodiment of this application. The method includes:

[0036] 101, please combine Figure 2 and Figure 3 , Figure 2 This is a schematic diagram of the structure of the metal part provided in the embodiments of this application. Figure 3 for Figure 2 An enlarged schematic diagram of part A of the metal component shown. Metal component 10 is obtained. Metal component 10 includes a main structure 20 and a connecting structure 40. The main structure 20 includes a middle part 22 and a peripheral part 24. The peripheral part 24 is arranged around the middle part 22 and includes a first part 242 and a second part 244 that are separately arranged. The first part 242 is separately arranged from the middle part 22, and the second part 244 is connected to the middle part 22. The connecting structure 40 is arranged on the side of the peripheral part 24 away from the middle part 22, and both the first part 242 and the second part 244 are connected to the connecting structure 40.

[0037] 102, please refer to Figure 4 , Figure 5 and Figure 6 , Figure 4 This is a schematic diagram of the structure of the first plastic part provided in an embodiment of this application. Figure 5 This is a schematic diagram of the structure of the metal part and the first plastic part provided in the embodiments of this application. Figure 6 for Figure 5 The diagram shown is an enlarged view of part B in the metal part and the first plastic part. The first plastic part 60 is provided on the metal part 10 so that at least one of the intermediate part 22 and the second part 244 is connected to the first part 242 through the first plastic part 60.

[0038] 103, please refer to Figure 7 and Figure 8 , Figure 7This is a schematic diagram of the structure of the metal part and the first plastic part after removing the connecting structure, as provided in the embodiments of this application. Figure 8 for Figure 7 The diagram shows an enlarged view of part C in the metal part and the first plastic part after the connecting structure has been removed. The connecting structure 40 of the metal part 10 has been removed.

[0039] 104, please refer to Figure 9 and Figure 10 , Figure 9 This is a schematic diagram of the structure of the second plastic part provided in an embodiment of this application. Figure 10 This is a schematic diagram of the structure of the middle frame provided in an embodiment of this application. A second plastic part 80 is provided around the periphery of the metal part 10 after the connecting material structure 40 is removed, to form the middle frame 11.

[0040] Please continue reading in section 101. Figure 2 and Figure 3 The first part 242 and the second part 244 are separated, meaning there is no direct connection between them. Similarly, the first part 242 and the intermediate part 22 are separated, meaning there is no direct connection between them. The intermediate part 22 in the metal part 10 can serve as the ground for the antenna, and the first part 242 can serve as the antenna radiator. The second part 244 connects to the intermediate part 22. The connecting structure 40 connects both the first part 242 and the second part 244, and then connects to the intermediate part 22 via the second part 244. This ensures that all components of the main structure 20 are connected to the connecting structure 40, preventing any component like the second part 244 from detaching.

[0041] The metal part 10 can be formed by die casting a metal sheet or by other means. This embodiment does not limit the formation method of the metal part 10.

[0042] Please refer to section 102 for further information. Figure 5 and Figure 6 A first plastic part 60 is provided on the metal part 10, and one of the second part 244 and the middle part 22 is connected to the first part 242 through the first plastic part, so that the first part 242 can be indirectly connected to the second part 244 and the middle part 22 through the first plastic part 60, that is, the first part 242, the second part 244, the middle part 22 and the first plastic part 60 are connected together.

[0043] In some embodiments, please combine Figure 3A first gap 221 exists between the first portion 242 and the intermediate portion 22. Providing a first plastic component 60 on the metal component 10 may include: placing the first plastic component 60 within the first gap 221 between the first portion 242 and the intermediate portion 22, so that the first portion 242 and the intermediate portion 22 are connected by the first plastic component 60. The first plastic component 60 can fill the first gap 221 between the first portion 242 and the intermediate portion 22, thereby connecting the first portion 242 and the intermediate portion 22 through the first plastic component 60, resulting in a better connection strength between the first portion 242 and the intermediate portion 22.

[0044] In some embodiments, please combine Figure 3 A second gap 223 exists between the first portion 242 and the second portion 244. The provision of a first plastic member 60 on the metal member 10 includes: placing the first plastic member 60 within the second gap 223 between the first portion 242 and the second portion 244, so that the first portion 242 and the second portion 244 are connected by the second plastic member 60. The first plastic member 60 can fill the second gap 223 between the first portion 242 and the second portion 244, thereby connecting the first portion 242 and the second portion 244 by the first plastic member 60.

[0045] In some embodiments, please combine Figure 3 A third gap 225 exists between the second part 244 and the intermediate part 22. The provision of the first plastic part 60 on the metal part 10 includes: placing the first plastic part 60 within the third gap 225 between the second part 244 and the intermediate part 22, so that the second part 244 and the intermediate part 22 are connected by the first plastic part 60. The first plastic part 60 can fill the third gap 225 between the second part 244 and the intermediate part 22, thereby enhancing the connection strength between the second part 244 and the intermediate part 22.

[0046] In some embodiments, please combine Figure 3 The first plastic part 60 can be disposed in two or three of the first gap 221, the second gap 223 and the third gap 225, thereby improving the connection strength between the first part 242, the second part 244 and the middle part 22.

[0047] It should be noted that a third gap 225 is provided between the second part 244 and the intermediate part 22, and some metal stubs in the second part 244 can also serve as antenna radiators. For example, the second part 244 includes metal stubs, which include a connecting region directly connected to the intermediate part 22 and an extension region connected to the connecting region but separated from the intermediate part 22. The extension region is separated from the intermediate part 22, and a third gap 225 is provided between the extension region and the intermediate part 22. This metal stub can serve as an antenna radiator, the connecting region can be grounded, and the metal stub can be connected to the radio frequency circuit through a metal spring, thereby realizing the antenna function. It can be understood that the metal stub can be strip-shaped. There can be one extension region, which is connected to one side of the connecting region, that is, the grounding point is located at one end of the metal stub. There can be two extension regions, which are respectively connected to the two sides of the connecting region, that is, the grounding point is located in the middle of the metal stub.

[0048] The number of metal branches can be set as needed. For example, the second part 244 can be provided with one metal branch as needed. Alternatively, the second part 244 can be provided with multiple metal branches, such as two, three, four, or more. Multiple metal branches can be located on the same side of the peripheral portion 24, can be arranged sequentially, or can be arranged on different sides of the peripheral portion 24 and staggered.

[0049] In some embodiments, the peripheral portion 24 includes an outer surface away from the middle portion 22, and the first plastic part 60 may be located on the side of the outer surface of the peripheral portion 24 facing the middle portion 22, that is, the first plastic part 60 does not extend beyond the outer surface of the peripheral portion 24, does not affect the removal of the connecting structure 40, and does not affect the setting of the second plastic part 80.

[0050] The first plastic part 60 can be set on the metal part 10 using injection molding, or it can be set using other methods, such as blow molding, vacuum forming, compression molding, casting, drip molding, slush molding, foam molding, dip molding, thermosetting plastic processing, 3D printing, etc. This embodiment does not limit the process of setting the first plastic part 60.

[0051] In section 103, after the first part 242, the second part 244, the intermediate part 22, and the first plastic part 60 are connected together, the connecting structure 40 of the metal part 10 is removed. Please refer to the following section. Figure 7 and Figure 8Since the first part 242 is indirectly connected to the second part 244 and the middle part 22 through the first plastic part 60, the first part 242 will not fall off and can be connected to the second part 244 and the middle part 22. At the same time, the first part 242, which is the antenna radiator, can be separated from the middle part 22, which is the ground, to form the clearance area required by the antenna radiator and realize the antenna function of the first part 242.

[0052] In related technologies, the die-cast metal of the integrated mid-frame includes an outer ring antenna and a metal body located inside the outer ring antenna. The outer ring antenna and the metal body are connected together by a connecting point. Then, the antenna is wrapped in plastic through injection molding. Next, the metal connecting point is cut off by CNC precision machining. Because the connecting point is located inside the die-cast metal and one side of the connecting point is the relatively small outer ring antenna, the machining accuracy requirements of CNC precision machining are very high. Moreover, because the machining accuracy requirements are very high, the machining time is also long, resulting in high cost for the process of cutting off the inner connecting point by CNC precision machining, which can even account for 30% of the cost of the entire integrated mid-frame.

[0053] In this embodiment, since the connecting structure 40 is located on the outside of the peripheral portion 24, it is not necessary to cut off the connecting position inside the main structure 20 through CNC precision machining. Only the connecting structure 40 outside the main structure 20 needs to be cut off. The machining accuracy requirement is low, and the connecting structure 40 can be cut off quickly, thereby improving production efficiency and reducing costs.

[0054] The connecting structure 40 can be removed using CNC precision machining equipment. When CNC cutting off the connecting structure 40 on the outside of the main structure 20, a large cutting tool can be used for CNC precision machining. Because the main structure 20 is an internal component and has low requirements for appearance, the CNC precision machining time in this embodiment will be much shorter than the machining time for internal connecting materials using CNC precision machining in related technologies. In addition, because the connecting structure 40 is located on the outside of the main structure 20, it can be removed quickly and continuously using CNC precision machining around the main structure 20, resulting in high efficiency and low cost.

[0055] In addition to using CNC precision machining equipment to remove the connecting structure 40, punching equipment can also be used to remove the connecting structure 40. The cost of punching equipment is lower than that of CNC precision machining, and the punching equipment removes the connecting structure 40 much faster than CNC precision machining.

[0056] Please refer to section 104 for further information. Figure 9 and Figure 10A second plastic part 80 is provided around the periphery of the metal part 10 after the connecting structure 40 is removed, to form the middle frame 11. The second plastic part 80 is non-conductive and can be placed around the periphery of the main structure 20 without affecting the antenna performance of the first part 242. It can also insulate and separate the periphery 24 of the main structure 20 from other components. Please refer to... Figure 11 , Figure 11 for Figure 10 The diagram shows an enlarged view of part D in the middle frame. It should be noted that because a second plastic part 80 is required on the outer periphery of the peripheral portion 24 of the main structure 20, the appearance requirements for the surface of the metal part 10 after removing the connecting structure 40 are not high when removing the connecting structure 40. The processing precision requirements for cutting off the connecting structure 40 are low, and the connecting structure 40 can be cut off quickly, thereby improving production efficiency and reducing costs.

[0057] It should be noted that when the first plastic part 60 is provided to connect the middle part 22 and the peripheral part 24, it can serve as the internal connecting material of the middle frame in the related technology. That is, the first plastic part 60 can support the middle part 22 and the peripheral part 24, which can enhance the structural strength of the main structure 20. It can prevent the main structure 20 from deforming when the second plastic part 80 is installed by secondary injection molding. Moreover, it does not require separate processing of the internal connecting material of the middle frame in the later stage, which improves efficiency, reduces costs, and does not cause deformation of the main structure 20.

[0058] In some embodiments, a large gap is provided between the first portion 242 and the middle portion 22 to accommodate components such as a camera, speaker, and charging port. The second plastic part 80 can also be disposed within at least one gap between the first portion 242 and the middle portion 22. This way, the second plastic part 80 has both a portion disposed on the outer side of the peripheral portion 24 and a portion disposed on the inner side of the peripheral portion 24, improving the connection strength between the second plastic part 80 and the peripheral portion 24. The portion disposed on the inner side of the peripheral portion 24 and the middle portion 22 can also be directly connected, further enhancing the connection strength between the second plastic part 80 and the middle portion 22, thereby improving the connection strength between the second plastic part 80 and the main structure 20.

[0059] The second plastic part 80 can be set around the periphery of the metal part 10 after the connecting material structure 40 is removed. This can be done using injection molding, or other methods such as blow molding, vacuum forming, compression molding, casting, drip molding, slush molding, foam molding, dip molding, thermosetting plastic processing, 3D printing, etc. This embodiment does not limit the process for setting the second plastic part 80.

[0060] After the second plastic part 80 is placed around the metal part 10 after the connecting structure 40 is removed, the second plastic part 80 can be subjected to appearance treatment, and the metal part 10 after the connecting structure 40 is removed can also be subjected to appearance treatment, such as removing some unwanted parts, smoothing some surfaces, etc.

[0061] This application also provides a mid-frame; please refer to the following embodiments. Figure 10 and Figure 11 The middle frame 11 is manufactured using the manufacturing method of any of the above embodiments. Specifically, the middle frame 11 includes a metal plate 20, a first plastic part 60, and a second plastic part 80. The metal plate 20 includes a middle portion 22 and a peripheral portion 24. The peripheral portion 24 surrounds the middle portion 22 and includes a first part 242 and a second part 244 that are separately disposed. The first part 242 is separately disposed from the middle portion 22, and the second part 244 is connected to the middle portion 22. One end of the first plastic part 60 is connected to the first part 242, and the other end of the first plastic part 60 is connected to at least one of the second part 244 and the middle portion 22. The second plastic part 80 is disposed around the metal plate 20. The metal plate in this embodiment can be the main structure in the above embodiments.

[0062] The first plastic part 60 and the second plastic part 80 are two separate components. The first plastic part 60 and the second plastic part 80 can be integrally molded by injection molding. The metal plate 20 is formed by removing the connecting structure 40 from the metal part 10. No connecting position is needed between the middle portion 22 and the peripheral portion 24 of the metal plate 20, eliminating the need for prolonged high-precision CNC machining to remove the connecting position. The machining precision requirements for the metal plate 20 are low, allowing for rapid removal of the connecting structure 40. Furthermore, the second plastic part 80 needs to be installed around the outer periphery of the peripheral portion 24 of the main structure 20. Therefore, when removing the connecting structure 40 from the main structure 20, the appearance requirements for the surface of the metal part 10 after removing the connecting structure 40 are not high, and the machining precision requirements for removing the connecting structure 40 are low. This allows for rapid removal of the connecting structure 40, improving production efficiency and reducing costs.

[0063] Optional, please continue to combine Figure 3 and Figure 6 A first gap 221 is provided between the first part 242 and the middle part 22. A first plastic part 60 is provided in the first gap 221 to connect the first part 242 and the middle part 22. The first plastic part 60 can fill the first gap 221 between the first part 242 and the middle part 22, thereby connecting the first part 242 and the middle part 22 through the first plastic part 60, so that the first part 242 and the middle part 22 have good connection strength.

[0064] Optional, please continue to combine Figure 3 and Figure 6 A second gap 223 is provided between the first part 242 and the second part 244, and a first plastic member 60 is provided in the second gap 223 to connect the first part 242 and the second part 244. The first plastic member 60 can fill the second gap 223 between the first part 242 and the second part 244, thereby connecting the first part 242 and the second part 244 through the first plastic member 60.

[0065] Optional, please continue to combine Figure 3 and Figure 6 A third gap 225 is provided between the second part 244 and the middle part 22, and a first plastic part 60 is provided in the third gap 225. The first plastic part 60 can fill the third gap 225 between the second part 244 and the middle part 22, thereby enhancing the connection strength between the second part 244 and the middle part 22.

[0066] Optional, please continue to combine Figure 3 and Figure 6 The first plastic part 60 can be disposed in two or three of the first gap 221, the second gap 223 and the third gap 225, thereby improving the connection strength between the first part 242, the second part 244 and the middle part 22.

[0067] It should be noted that a third gap 225 is provided between the second part 244 and the intermediate part 22, and some metal stubs in the second part 244 can also serve as antenna radiators. For example, the second part 244 includes metal stubs, which include a connecting region directly connected to the intermediate part 22 and an extension region connected to the connecting region but separated from the intermediate part 22. The extension region is separated from the intermediate part 22, and a third gap 225 is provided between the extension region and the intermediate part 22. This metal stub can serve as an antenna radiator, the connecting region can be grounded, and the metal stub can be connected to the radio frequency circuit through a metal spring, thereby realizing the antenna function. It can be understood that the metal stub can be strip-shaped. There can be one extension region, which is connected to one side of the connecting region, that is, the grounding point is located at one end of the metal stub. There can be two extension regions, which are respectively connected to the two sides of the connecting region, that is, the grounding point is located in the middle of the metal stub.

[0068] The number of metal branches can be set as needed. For example, the second part 244 can be provided with one metal branch as needed. Alternatively, the second part 244 can be provided with multiple metal branches, such as two, three, four, or more. Multiple metal branches can be located on the same side of the peripheral portion 24, can be arranged sequentially, or can be arranged on different sides of the peripheral portion 24 and staggered.

[0069] The peripheral portion 24 includes an outer surface away from the middle portion 22. The first plastic part 60 can be located on the side of the outer surface of the peripheral portion 24 facing the middle portion 22, that is, the first plastic part 60 does not extend beyond the outer surface of the peripheral portion 24 and does not affect the setting of the second plastic part 80.

[0070] Optionally, a large notch is provided between the first part 242 and the middle part 22 to accommodate components such as a camera, speaker, and charging port. The second plastic part 80 can also be disposed within at least one notch between the first part 242 and the middle part 22. In this way, the second plastic part 80 has not only a portion disposed on the outer side of the peripheral part 24 but also a portion disposed on the inner side of the peripheral part 24, thereby improving the connection strength between the second plastic part 80 and the peripheral part 24. The portion disposed on the inner side of the peripheral part 24 and the middle part 22 can also be directly connected, enhancing the connection strength between the second plastic part 80 and the middle part 22, and thus improving the connection strength between the second plastic part 80 and the main structure 20.

[0071] It should be noted that when the first plastic part 60 is provided to connect the middle part 22 and the peripheral part 24, it can serve as the internal connecting material of the middle frame in related technologies. That is, the first plastic part 60 can support the middle part 22 and the peripheral part 24, which can enhance the structural strength of the main structure 20 and prevent deformation of the main structure 20. For example, it can prevent deformation of the main structure 20 when the second plastic part 80 is installed by secondary injection molding. Moreover, it eliminates the need for separate processing of the internal connecting material of the middle frame, improving efficiency and reducing costs, while preventing deformation of the main structure 20. This application also provides a metal part, please continue reading. Figure 2 and Figure 3 The metal component 10 includes a main structure 20 and a connecting structure 40. The main structure 20 includes a middle portion 22 and a peripheral portion 24. The peripheral portion 24 is disposed around the middle portion 22 and is used to form the antenna radiator of the middle frame 11. The peripheral portion 24 includes a first part 242 and a second part 244 that are disconnected. The first part 242 is separated from the middle portion 22, and the second part 244 is connected to the middle portion 22. The connecting structure 40 is disposed on the side of the peripheral portion 24 away from the middle portion 22, and both the first part 242 and the second part 244 are connected to the connecting structure 40.

[0072] Metal part 10 is used to manufacture the metal components in the middle frame 11. Connecting structure 40 can connect the first part 242 and the second part 244, and connect the middle part 22 through the second part 244, thereby connecting the first part 242, the second part 244 and the middle part 22. When the first plastic part 60 is provided on the metal part 10 to connect one of the second part 244 and the middle part 22 to the first part 242, the connecting structure 40 can be removed, so that the first part 242 is no longer electrically connected to the second part 244 and the middle part 22. It is connected through the non-conductive first plastic part 60. That is, the first part 242, which is the antenna radiator, can be separated from the middle part 22, which is the ground, forming the clearance area required for the antenna radiator and realizing the antenna function of the first part 242.

[0073] Considering that multiple first parts 242 can be set on the peripheral part 24, and one or more antenna radiators can be set in the second part 244, the connecting structure 40 is set around the periphery of the main structure 20. All the first parts 242 and second parts 244 are connected together to ensure that all parts that serve as antenna radiators can be well fixed.

[0074] The structure of the metal part in this embodiment can be referred to the metal part of any of the above embodiments, and the processing of the metal part can be referred to the above embodiments, which will not be repeated here.

[0075] This application also provides an electronic device; please refer to [link / reference]. Figure 12 , Figure 12 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. The electronic device 1 includes a mid-frame 11 and a radio frequency (RF) circuit 52. The structure of the mid-frame 11 can refer to the mid-frame in any of the above embodiments, and will not be repeated here. The RF circuit 52 is connected to a first part of the mid-frame 11. The first part serves as an antenna radiator, and the first part and the RF circuit 52 cooperate to realize the antenna function. The first part can be coupled to the RF circuit 52 via a metal spring or a metal wire.

[0076] Optionally, an antenna radiator can also be provided on the second part, and the radio frequency circuit can be coupled to the antenna radiator of the second part to realize the antenna function.

[0077] To better understand the electronic device in this embodiment, electronic device 1 will be used as a mobile phone example below. Figure 12 As shown, in addition to the mid-frame 11 described in the above embodiment, the electronic device 1 may also include a display screen 30, a motherboard 50, a battery 70, and a camera module 90.

[0078] The display screen 30 can be mounted on one side of the middle frame 11, and the electronic device may also include a rear cover (not shown), which is located on the other side of the middle frame 11. For example, the display screen 30 and the rear cover can be mounted on opposite sides of the middle frame 11 by means of adhesive bonding, welding, or snap-fitting. The camera module 90 can be disposed between the display screen 30 and the rear cover and can receive light from the external environment.

[0079] The back cover can be the battery cover of electronic device 1, and its material can be glass, metal, hard plastic, or other electrochromic materials. The back cover has a certain structural strength and is mainly used to protect electronic device 1. The middle frame 11 also has a certain structural strength and is mainly used to support and fix the camera module 90 and other functional components installed between the middle frame 11 and the back cover. Examples include the battery 70, motherboard 50, and speaker of electronic device 1. Furthermore, since the middle frame 11 and the back cover are generally directly exposed to the external environment, the materials of the middle frame 11 and the back cover can preferably have certain wear-resistant, corrosion-resistant, and scratch-resistant properties, or a layer of wear-resistant, corrosion-resistant, and scratch-resistant functional material can be coated on the outer surface of the middle frame 11 and the back cover (i.e., the outer surface of electronic device 1).

[0080] The display screen 30 may include a display module and circuitry for responding to touch operations on the display module. The display screen 30 may use an organic light-emitting diode (OLED) screen for image display or a liquid crystal display (LCD) screen for image display. Furthermore, the display screen 30 may be a flat panel screen, a curved screen, or a quad-curved screen; this embodiment does not limit the specific form factor.

[0081] It should be noted that for mobile phones, the display screen can be a flat screen, a dual-curved screen, a quad-curved screen, etc. A flat screen means that the display screen 30 is flat in shape as a whole; a dual-curved screen means that the left and right edges of the display screen 30 are curved, while the other areas are still flat. This not only reduces the black borders of the display screen 30 and increases the visible area of ​​the display screen 30, but also enhances the aesthetics and grip of the electronic device 1; a quad-curved screen means that the top, bottom, left, and right edges of the display screen 30 are all curved, while the other areas are still flat. This not only further reduces the black borders of the display screen 30 and increases the visible area of ​​the display screen 30, but also further enhances the aesthetics and grip of the electronic device 1.

[0082] The motherboard 50 can be located within the electronic device 1, and can serve as the main control circuit board for the electronic device 1. The motherboard 50 may integrate a processor, and may also integrate one or more functional components such as a headphone jack, accelerometer, gyroscope, and motor. The processor on the motherboard 50 can control the display screen 30 and the camera module 90. The radio frequency circuit 52 can be located on the motherboard 50.

[0083] Battery 70 can be installed inside electronic device 1 and can be electrically connected to motherboard 50 to power electronic device 1. Motherboard 50 can have a battery 70 management circuit. The battery 70 management circuit is used to distribute the voltage provided by battery 70 to various electronic components in electronic device 1.

[0084] It is understood that the above is only an exemplary example of electronic device 1. Electronic device 1 in the embodiments of this application may also include components such as sensors, sound-to-electric conversion devices, and antenna modules. These components can be referred to in the description of related technologies, and will not be repeated here.

[0085] It is understood that the electronic devices provided in the embodiments of this application may be mobile terminal devices such as mobile phones and tablets, or devices with camera modules such as gaming devices, augmented reality (AR) devices, virtual reality (VR) devices, in-vehicle computers, laptops, data storage devices, audio playback devices, video playback devices, wearable devices, and monitoring devices. Wearable devices may be smartwatches, smart glasses, etc.

[0086] In the description 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0087] The manufacturing method of the middle frame, the middle frame, the metal parts, and the electronic device provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A method for manufacturing a middle frame, characterized in that, include: Obtain a metal part, the metal part including a main structure and a connecting structure, the main structure including a middle part and a peripheral part, the peripheral part being disposed around the middle part, the peripheral part including a first part and a second part separately disposed, the first part being separately disposed from the middle part, the second part being connected to the middle part, the connecting structure being disposed on the side of the peripheral part away from the middle part, and both the first part and the second part being connected to the connecting structure; A first plastic part is provided on the metal part so that at least one of the middle part and the second part is connected to the first part through the first plastic part; Remove the connecting structure of the metal part; and A second plastic part is provided around the periphery of the metal part after the connecting material structure is removed to form a middle frame.

2. The method for manufacturing the middle frame according to claim 1, characterized in that, A first gap exists between the first portion and the intermediate portion, and the provisioning of the first plastic part on the metal part includes: The first plastic component is disposed in the first gap between the first part and the middle part, so that the first part and the middle part are connected by the first plastic component.

3. The method for manufacturing the middle frame according to claim 1 or 2, characterized in that, A second gap exists between the first part and the second part, and the provisioning of the first plastic part on the metal part includes: The first plastic component is disposed in the second gap between the first part and the second part, so that the first part and the second part are connected by the second plastic component.

4. The method for manufacturing the middle frame according to claim 1 or 2, characterized in that, A third gap exists between the second part and the intermediate part, and the provisioning of the first plastic part on the metal part includes: The first plastic component is disposed in a third gap between the second part and the middle part, so that the second part and the middle part are connected by the first plastic component.

5. The method for manufacturing the middle frame according to claim 1, characterized in that, The provision of the first plastic component on the metal component includes: A first plastic part is formed on the metal part using an injection molding process; and / or The step of setting a second plastic part around the periphery of the metal part after removing the connecting structure includes: A second plastic part is provided around the periphery of the metal part after the connecting material structure has been removed using an injection molding process.

6. The method for manufacturing the middle frame according to claim 1, characterized in that, The removal of the connecting portion includes: The connecting material structure can be removed using a punching machine or by using computer-controlled precision machining.

7. A middle frame, characterized in that, include: A metal plate includes a middle portion and a peripheral portion, the peripheral portion surrounding the middle portion, the peripheral portion including a first part and a second part separately disposed, the first part being separately disposed from the middle portion, and the second part being connected to the middle portion; the middle portion serves as the ground of an antenna, and the first part serves as an antenna radiator; The second part includes a metal branch, which serves as an antenna radiator; there is a first gap between the first part and the middle part, a second gap between the first part and the second part, and a third gap between the second part and the middle part; The first plastic part has one end connected to the first part and the other end connected to at least one of the second part and the middle part; and A second plastic component is disposed around the metal plate.

8. The middle frame according to claim 7, characterized in that, The first plastic component is provided in the first gap to connect the first portion and the middle portion via the first plastic component; and / or The first plastic component is provided in the second gap to connect the first part and the second part through the first plastic component.

9. The middle frame according to claim 8, characterized in that, The first plastic component is disposed in the third gap.

10. A metal part, characterized in that, include: The main structure includes a middle part and a peripheral part. The peripheral part is arranged around the middle part and is used to form the antenna radiator of the middle frame. The peripheral part includes a first part and a second part that are disconnected. The first part is separated from the middle part, and the second part is connected to the middle part. The middle part serves as the ground of the antenna, and the first part serves as the antenna radiator. The second part includes a metal branch, which serves as an antenna radiator; there is a first gap between the first part and the middle part, a second gap between the first part and the second part, and a third gap between the second part and the middle part; and A connecting structure is provided on the periphery away from the middle part, and both the first part and the second part are connected to the connecting structure.

11. An electronic device, characterized in that, include: The middle frame is the middle frame as described in any one of claims 7-9; and The radio frequency circuit is connected to the first part of the middle frame.

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