Antenna assembly and method of manufacturing the same, housing assembly, and electronic device

Abstract

The embodiment of the present application provides an antenna assembly and a preparation method thereof, which comprises a middle frame, a pressing plate support and a radiator. The middle frame comprises a non-metal frame and a middle plate. The non-metal frame is arranged around the edge of the middle plate, and the non-metal frame is provided with a mounting groove. The radiator comprises a radiation part and a connecting part. The connecting part is connected with the radiation part and is integrally injection molded with the pressing plate support. The radiation part is at least partially embedded in the mounting groove. By forming the mounting groove in advance on the non-metal frame of the middle frame, and then integrally injection molding the formed radiator with the pressing plate support, the relative fixation of the radiator and the pressing plate support is realized. The embedding of the radiation part in the mounting groove and the fixation of the pressing plate support on the middle frame can realize the stable arrangement of the radiation part in the non-metal frame. Since the mounting groove and other structures can be integrally formed when the middle frame is formed, subsequent CNC processing of the middle frame is not required, and operations such as seam opening are not required, thereby saving the process and reducing the cost. In addition, the embodiment of the present application further provides a shell assembly and an electronic device.

Description

Technical Field

[0001] This application relates to the field of radio frequency technology, specifically to an antenna assembly and its fabrication method, a housing assembly, and an electronic device. Background Technology

[0002] In related technologies, mobile phones and other electronic devices are equipped with antennas, which are used to achieve radio frequency communication with external devices or networks. Currently, these antennas are usually mounted on the inner frame of the electronic device's casing. To improve the structural strength of the inner frame, it is usually a one-piece structure. This makes it necessary to complete the installation of antennas on the inner frame through multiple processes, resulting in high costs. This has become an issue that cannot be ignored, especially as the number of antennas integrated into electronic devices increases. Summary of the Invention

[0003] The purpose of this application is to provide an antenna assembly and its manufacturing method, housing assembly and electronic device, so as to at least partially solve the above-mentioned technical problems.

[0004] In a first aspect, embodiments of this application provide an antenna assembly, including a mid-frame, a pressure plate bracket, and a radiator. The mid-frame includes a non-metallic frame and a mid-plate, with the non-metallic frame surrounding the edge of the mid-plate and having a mounting groove. The pressure plate bracket is fixed to the mid-frame. The radiator includes a radiating portion and a connecting portion, with the connecting portion connecting to the radiating portion and integrally injection molded with the pressure plate bracket. The radiating portion is at least partially embedded in the mounting groove.

[0005] Secondly, embodiments of this application also provide a housing assembly, including the aforementioned antenna assembly, front housing, and rear housing, wherein the front housing is mounted on a non-metallic frame, the rear housing is mounted on a non-metallic frame, and the front housing and the rear housing are located on opposite sides of the middle plate.

[0006] Thirdly, embodiments of this application also provide an electronic device, including the aforementioned housing assembly, metal sheet, and display screen, wherein the metal sheet is disposed on the middle plate, and the display screen is mounted on the front housing and correspondingly disposed with the metal sheet.

[0007] Fourthly, embodiments of this application also provide a method for manufacturing an antenna assembly, comprising: forming a middle frame, the middle frame including a non-metallic frame and a middle plate, the non-metallic frame surrounding the edge of the middle plate, the non-metallic frame being provided with a mounting groove; forming a radiator, the radiator including a radiating part and a connecting part, integrally injection molding a pressure plate bracket on the connecting part; and embedding the radiating part into the mounting groove, the pressure plate bracket being fixed to the middle frame.

[0008] The antenna assembly and its fabrication method provided in this application adopt an integrated mid-frame structure. A mounting groove is pre-formed on the non-metallic border of the mid-frame. Then, the radiator and pressure plate bracket are integrally injection molded, fixing the radiator and pressure plate bracket relatively to each other. The radiator is embedded in the mounting groove, and after the pressure plate bracket is fixed to the mid-frame, the radiator is stably positioned within the non-metallic border. This allows the radiator to conduct radio frequency communication through the non-metallic border. Since the mounting groove and other structures can be integrally formed during the mid-frame construction, subsequent CNC machining of the mid-frame and slotting operations are unnecessary, saving processes and reducing costs.

[0009] Using the aforementioned antenna assembly housing and electronic equipment can reduce costs while ensuring antenna RF performance.

[0010] These or other aspects of this application will become more apparent from the description of the following embodiments. Attached Figure Description

[0011] 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 accompanying 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.

[0012] Figure 1 This is a schematic diagram of the structure of an electronic device proposed in an embodiment of this application.

[0013] Figure 2 yes Figure 1 The diagram shows a partial structural representation of the electronic device after the back cover has been removed.

[0014] Figure 3 yes Figure 1 Cross-sectional view along line AA.

[0015] Figure 4 This is a schematic diagram of the structure of an antenna assembly provided in an embodiment of this application.

[0016] Figure 5 This is a partial cross-sectional structural diagram of a middle frame provided in an embodiment of this application.

[0017] Figure 6 This is a cross-sectional structural diagram of a radiator provided in an embodiment of this application.

[0018] Figure 7 This is a partial cross-sectional structural diagram of another middle frame provided in an embodiment of this application.

[0019] Figure 8This is a flowchart of a method for fabricating an antenna assembly according to an embodiment of this application. Detailed Implementation

[0020] 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 some embodiments of this application, and not all 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.

[0021] In related technologies, antennas of electronic devices are typically formed within non-metallic frames, mainly in the following ways:

[0022] One approach is to use a metal-non-metal frame. By injection molding through slits in the non-metal frame, the non-metal frame is divided into multiple radiating segments to serve as antennas. This method requires first forming the metal-non-metal frame, then making slits in the non-metal frame according to the antenna's placement position, and then injecting plastic into the slits. The plastic is then used to connect the frame to the other structures of the mid-frame. This process is relatively complicated and costly. Furthermore, there will be a color difference between the plastic in the slits and the metal-non-metal frame, resulting in poor consistency in the appearance of the electronic device.

[0023] Another method is to use non-metallic plastic to encapsulate the antenna within a non-metallic frame. The specific process for this structure is as follows: first, the antenna radiator and the middle plate structure are die-cast; then, the antenna is encapsulated by injection molding to form a non-metallic frame; finally, the connecting material between the antenna radiators needs to be milled off by CNC machining. This process is relatively rough and has a high manufacturing cost.

[0024] Another method is to use an FPC antenna, which is attached to the edge of the bottom cover by adhesive or other means. This method is relatively simple and low-cost. However, because the clearance between the FPC antenna and the display screen of the electronic device is small, the display screen needs to be collapsed in order to ensure the clearance, which in turn forms a large black border at the edge of the screen, affecting the appearance of the electronic device.

[0025] Based on this, the inventors of this application, after long-term research, have proposed an antenna assembly and its manufacturing method, housing assembly and electronic device, which can ensure the radio frequency performance of the antenna assembly, while eliminating the need for CNC machining, thus reducing manufacturing costs.

[0026] The contents of this application will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1As shown, this embodiment provides an electronic device 10. The electronic device 10 in this application can be a mobile phone or smartphone (e.g., a phone based on iPhone™ or Android™), a portable gaming device (e.g., Nintendo DS™, PlayStation Portable™, Gameboy Advance™, iPhone™), a laptop computer, a PDA, a portable internet device, a music player, and a data storage device, other handheld devices, and such as watches, headphones, pendants, etc. The electronic device 10 can also be other wearable devices (e.g., such as electronic glasses, electronic clothing, electronic bracelets, electronic necklaces, electronic tattoos, head-mounted devices (HMDs) of the electronic device 10 or smartwatches).

[0028] Please refer to the following: Figure 1 and Figure 2 The electronic device 10 provided in this embodiment is illustrated using a mobile phone as an example. The electronic device 10 includes a housing assembly 20, a display screen 30, a motherboard 50, and a battery 40, etc., with the motherboard 50 and battery 40 both housed within the housing assembly 20. The electronic device 10 may also include a front-facing camera, which is located on one side of the display screen 30 of the electronic device 10.

[0029] Please refer to the following: Figure 1 , Figure 2 as well as Figure 3 The housing assembly 20 includes an antenna assembly 24, a front housing 25, and a rear housing 26, such as Figure 4 As shown, the antenna assembly 24 includes a mid-frame 21, a pressure plate bracket 200, and a radiator 100. The pressure plate bracket 200 and the radiator 100 are integrated together. The radiator 100 is mounted on the non-metallic frame 23 and is used for radio frequency communication with external devices or networks. The pressure plate bracket 200 can be fixed to the mid-frame 21.

[0030] Specifically, the mid-frame 21 includes a mid-plate 22 and a non-metallic frame 23. The non-metallic frame 23 surrounds the edge of the mid-plate 22 and is made of non-metallic materials such as plastic. The non-metallic frame 23 protrudes from the mid-plate 22, and protrudes from the mid-plate 22 on both opposite sides. The front shell 25 and the rear shell 26 are respectively assembled on opposite sides of the mid-plate 22, and both the front shell 25 and the rear shell 26 are assembled and fixed with the non-metallic frame 23. The rear shell 26, the mid-frame 21, and the front shell 25 together form a cavity. The mainboard 50 is disposed in the cavity and fixed on the mid-plate 22. The cavity can also accommodate other components such as a rear camera, antenna, and processor.

[0031] The middle frame 21 can be a one-piece middle frame structure, wherein the non-metallic frame 23 and the middle plate 22 can be integrally formed to give the middle frame 21 sufficient structural strength. The middle plate 22 can be made of metal in part or in whole, without limitation. For example, in a more specific embodiment, the middle plate 22 can be made of magnesium alloy metal plate as substrate, and the non-metallic frame 23 is made of plastic material, which is injection molded onto the substrate to form the one-piece middle frame 21.

[0032] See Figure 5 The middle plate 22 has a first side 221 and a second side 222 facing away from each other. The first side 221 and the second side 222 are located in the thickness direction of the electronic device 10. The front shell 25 is mounted on the first side 221 of the middle plate 22, and the rear shell 26 is mounted on the second side 222 of the middle plate 22. A non-metallic frame 23 is connected to the edge of the middle plate 22 and extends towards both the first side 221 and the second side 222 of the middle plate 22. The non-metallic frame 23 has an inner surface 231, which can be formed into a ring. The middle plate 22 is connected to the inner surface 231 of the non-metallic frame 23, that is, the inner surface 231 is arranged around the middle plate 22.

[0033] The non-metallic frame 23 is provided with a mounting groove 232 for mounting the radiator 100. The mounting groove 232 can be integrally formed during the formation of the non-metallic frame 23, which saves the process of opening the mounting groove 232 and reduces costs. It should be noted that, depending on the structure of the radiator 100, the mounting groove 232 can be a continuous groove, or when there are multiple radiators 100, the mounting groove 232 can include multiple independent grooves, which is not limited here. As a more specific embodiment, the mounting groove 232 has an opening for the radiator 110 to be embedded in the mounting groove 232. The opening of the mounting groove 232 is oriented towards the second side 222, that is, the opening direction of the mounting groove 232 is towards the rear shell 26. The non-metallic frame 23 includes an inner wall surrounding the mounting groove 232. The inner wall includes a first inner wall 233 and a second inner wall 234, which are opposite to each other. The first inner wall 233 is close to the outer surface of the non-metallic frame 23, and the second inner wall 234 is close to the inner surface 231 of the non-metallic frame 23. Furthermore, in order to facilitate the installation of the radiator 100, the depth of the second inner wall 234 is shallower than the depth of the first inner wall 233, that is, the second inner wall 234 forms a step so that the radiator 100 can be at least partially embedded in the mounting groove 232.

[0034] Various electronic components can be mounted on the motherboard 50, including but not limited to processors, memory, antenna modules, speakers, receivers, etc., without specific limitations. The motherboard 50 may have solder pads (not shown), and electronic components are connected to the circuitry on the motherboard 50 via soldering to these pads. In this embodiment, the motherboard 50 is equipped with an antenna circuit, which is electrically connected to the radiator 100 to feed power to or receive signals from the radiator 100.

[0035] The radiator 100 is used for communication, specifically for transmitting wireless signals to the outside or receiving wireless signals sent by other electronic devices 10. The radiator 100 includes, but is not limited to, radio frequency antennas, Bluetooth antennas, Wi-Fi antennas, GPS antennas, etc.

[0036] See Figure 6 The radiator 100 includes a radiating part 110 and a connecting part 120. The radiating part 110 is used to radiate or receive signals, and the connecting part 120 is used to connect with the pressure plate bracket 200. Due to design requirements, the radiating part 110 can be configured in different shapes. The pressure plate bracket 200 can be generally plate-shaped and can be arranged generally parallel to the middle plate 22. The pressure plate bracket 200 is located on the second side 222 of the middle plate 22, that is, the side of the middle plate 22 facing the rear shell 26, and is located between the middle plate 22 and the rear shell 26. The pressure plate bracket 200 can be made of a non-metallic insulating material so that the pressure plate bracket 200 will not interfere with the antenna circuit of the radiator 100 during the connection with the connecting part 120. In this embodiment, the connecting part 120 and the pressure plate bracket 200 are integrally injection molded, making them a single unit.

[0037] In a more specific embodiment, the radiating part 110 and the connecting part 120 are integrally die-cast. This molding method allows the radiating part 110 and the connecting part 120 to be formed in one step, and the connection between the radiating part 110 and the connecting part 120 is stable. Furthermore, since they are made of the same material, their electromagnetic radiation performance is better. Of course, it is understood that in other embodiments, the radiating part 110 and the connecting part 120 may also be connected as a single unit by welding or other methods; this is not specifically limited here.

[0038] The pressure plate bracket 200 can be fixed to the middle frame 21. It is understood that, in one embodiment, the pressure plate bracket 200 can be directly fixed to the middle plate 22. For example, one or more through holes 210 can be formed on the pressure plate bracket 200, and one or more screws 300 can be passed through the through holes 210 to lock it to the middle plate 22. In other embodiments, the pressure plate bracket 200 can also be fixedly connected to the non-metallic frame 23. No specific limitation is made here, as long as the pressure plate bracket 200 and the middle frame 21 remain relatively stable.

[0039] It should be noted that when there are multiple radiators 100, the connecting parts 120 of multiple radiators 100 can be simultaneously connected to one pressure plate bracket 200. Alternatively, multiple pressure plate brackets 200 can be provided, with each connecting part 120 of a radiator 100 integrally injection molded; this is not limited here. In this embodiment, as... Figure 4 As shown, there are three radiators and two pressure plate brackets 200. One pressure plate bracket 200 connects to the connection part 120 of the two radiators 100 at the upper end of the electronic device 10, and the other pressure plate bracket 200 is located at the lower end of the electronic device 10 and connects to the connection part 120 of the remaining radiator 100. The upper and lower ends of the electronic device 10 refer to the upper and lower ends of the electronic device 10 when making or receiving calls.

[0040] In this embodiment, please refer again. Figure 3 The radiator 100 is embedded in the mounting groove 232. The connecting part 120 connects to the radiator 110 and bends relative to the radiator 110 to form an approximate "L" shape. When assembling the radiator 100, the radiator 110 is embedded in the mounting groove 232, and the connecting part 120 extends from the step formed by the second inner wall 234 and combines with the pressure plate bracket 200. Furthermore, during the process of embedding the radiator 110 into the mounting groove 232, the radiator 110 can be configured to have an interference fit with the mounting groove 232 for better positioning and fixation. In some embodiments, some adhesive can be pre-installed in the mounting groove 232, allowing the radiator 110 to be bonded and fixed to the non-metallic frame 23 after embedding into the mounting groove 232, forming a more stable connection. Of course, in other embodiments, after the radiator 100 is embedded in the mounting groove 232, the radiator 110 and the non-metallic frame 23 can be locked together using screws or other fasteners; this is not limited here. By fixing the radiating part 110 relative to the non-metallic frame 23, the radiating part 110 can be kept in a predetermined position, which is conducive to the radiator 100 as an antenna fully exerting its communication performance and avoiding the reduction in communication performance caused by the unstable position of the radiator 100 in the mounting slot 232.

[0041] Furthermore, to facilitate the assembly of the radiator 100, the width of the mounting groove 232 can be configured to gradually decrease from the opening of the mounting groove 232 towards the bottom wall of the mounting groove 232. The width of the mounting groove 232 refers to the distance between the first inner wall 233 and the second inner wall 234. That is, the distance between the first inner wall 233 and the second inner wall 234 (the width of the mounting groove 232) gradually narrows from the second side 222 towards the first side 221. Correspondingly, the radiating part 110 is configured to match the structure of the mounting groove 232, with the width of the end of the radiating part 110 away from the connecting part 120 being smaller than the width of the end of the radiating part 110 near the connecting part 120. The advantage of this arrangement is that, on the one hand, when the radiating part 110 is inserted into the mounting groove 232 from the opening, the resistance encountered by the radiating part 110 is small, facilitating assembly. On the other hand, the end of the radiating part 110 near the first side 221 is thinner. Therefore, the end of the radiating part 110 near the display screen 30 is thinner. During the operation of the antenna assembly 24 and the radio frequency radiation of the radiator 100, the interference effect on the display screen 30 is smaller. Thus, the display screen 30 does not need to be designed with a large area of ​​blanking zone, thereby reducing the black border around the display screen 30.

[0042] When the back cover 26 is assembled onto the non-metallic frame 23, the back cover 26 can press against the radiator 100 and the pressure plate bracket 200, thus pressing the radiator 100 tightly within the mounting groove 232 and restricting the degree of freedom of the radiator 100 along the thickness direction of the electronic device 10, further fixing the position of the radiator 100. It is understood that the other degrees of freedom of the radiator 100 can be defined by the first inner wall 233 and the second inner wall 234 surrounding the mounting groove 232.

[0043] In some embodiments, the radiator 100 can be connected to the middle plate 22 and the main plate 50 disposed on the middle frame 21 by generating branches to achieve power feeding and grounding of the radiator 110. The branches can be directly connected to the radiator 110 or connected to the connecting part 120, without specific limitation. In this embodiment, the antenna assembly 24 also includes an antenna bracket 500, which is disposed on the middle plate 22 and electrically connected to the radiator 100. The antenna bracket 500 can be connected to the main plate 50 disposed on the middle plate 22 to achieve power feeding of the radiator 100. In a more specific embodiment, the antenna bracket 500 can be made of metal and attached to the inner surface 231 of the non-metallic frame 23, with branches extending towards the middle plate 22 and connecting to the main plate 50.

[0044] The display screen 30 is mounted on the front housing 25. The display screen 30 can be an LCD (Liquid Crystal Display) screen for displaying information. The LCD screen can be a TFT (Thin Film Transistor) screen, an IPS (In-Plane Switching) screen, or an SLCD (Splice Liquid Crystal Display) screen. In some embodiments, the display screen 30 can be an OLED (Organic Light-Emitting Diode) screen for displaying information. The OLED screen can be an AMOLED (Active Matrix Organic Light Emitting Diode) screen, a Super AMOLED (Super Active Matrix Organic Light Emitting Diode) screen, or a Super AMOLED Plus (Super Active Matrix Organic Light Emitting Diode Plus) screen, which will not be described in detail here.

[0045] In related technologies, when the display screen 30 is installed, a certain clearance distance needs to be maintained between it and the antenna assembly 24. Typically, the outer edge of the display screen 30 needs to maintain a clearance of at least 1.5mm or more between it and the outer edge of the radiating portion 110 of the antenna assembly 24, meaning the display screen 30 is recessed towards the center by at least 1.5mm. This results in an assembly gap of at least 1.5mm between the upper casing and the display screen 30. For aesthetic purposes, this gap is filled with black ink to form a "black border," making the area appear as a single unit to the user. However, this black border area is not displayed when the display screen 30 is lit, which limits the screen-to-body ratio of the display screen 30 and is detrimental to the user's viewing experience.

[0046] In this embodiment, the electronic device 10 further includes a metal sheet 80, which may be made of materials such as Al, Cu, or Fe. The metal sheet 80 is disposed on the middle plate 22 and located on the first side 221. The display screen 30 may be supported on the metal sheet 80 or disposed at a distance from the metal sheet 80. The main function of the metal sheet 80 is to magnetically isolate the radiator 100 of the antenna assembly 24 and the display screen 30, preventing magnetic interference between the two and affecting the display effect of the display screen 30. To achieve better isolation, in some embodiments, the metal sheet 80 may be disposed correspondingly to the display screen 30, and the area of ​​the metal sheet 80 may be greater than or equal to the area of ​​the display screen 30, so that the projection of the display screen 30 onto the plane of the metal sheet 80 can fall completely within the metal sheet 80.

[0047] By setting the metal plate 80, the radiator 100 and the display screen 30 can be effectively isolated. Therefore, the distance A between the outer edge of the display screen 30 and the outer edge of the radiating part 110 of the radiator 100 can be controlled within 1mm. That is, the distance between the outer edge of the display screen 30 and the outer edge of the radiating part 110 is less than 1mm. This makes the black border formed on the outside of the display screen 30 narrower, which is better for the user's viewing experience and achieves a "full-screen" viewing effect.

[0048] In the above-described embodiment, the radiator 100 and the pressure plate bracket 200 are integrally injection molded. During assembly, they can be directly installed into the mounting groove 232 on the non-metallic frame 23 without the need for milling the radiator 100. This reduces the number of processes and lowers the cost. At the same time, the middle frame 21 can adopt an integral structure, which enhances the strength of the middle frame 21 and ensures the antenna radiation performance of the electronic device 10.

[0049] In a more specific implementation, such as Figure 7 As shown, the mounting slot 232 can also be located on the inner surface 231, meaning the opening of the mounting slot 232 faces the inner side of the non-metallic frame 23. Furthermore, the mounting slot 232 is located on the second side 222 of the middle plate 22, specifically on the side of the middle plate 22 closest to the rear housing 26. With this arrangement, when assembling the radiator 100 and the pressure plate bracket 200, the radiator 100 can be directly inserted into the mounting slot 232 from the middle plate 22 towards the non-metallic frame 23. Since the non-metallic frame 23 limits the radiator 110 in the thickness direction of the electronic device 10, there is no need to use the rear housing 26 to press against the radiator 110. Moreover, since the mounting slot 232 is located on the inner surface 231, the radiator 110 can be easily connected to the main board 50 on the middle plate 22, facilitating the adjustment of the feed point and ground point positions and achieving better antenna radiation performance.

[0050] See Figure 8This embodiment also provides a method for manufacturing the antenna assembly 24 described above, comprising the following steps:

[0051] Step S110: Form a middle frame 21, which includes a non-metallic border 23 and a middle plate 22. The non-metallic border 23 surrounds the edge of the middle plate 22 and is provided with a mounting groove 232.

[0052] The middle frame 21 can be formed in one piece. For example, the metal part of the middle frame 21 is formed first, taking magnesium-aluminum alloy as an example, and the metal part of the middle plate 22 is formed by die casting. Then, on the basis of the metal part, the non-metallic frame 23 and the rest of the middle plate 22 are formed by injection molding to form an integrated middle frame 21 structure. During the injection molding process, the mounting groove 232 is formed.

[0053] Step S120: Form a radiator 100, which includes a radiating part 110 and a connecting part 120. A pressure plate bracket 200 is integrally injection molded on the connecting part 120.

[0054] The radiator 100 can be formed by integral metal die casting. This forming method can shorten the process time and simplify the process steps, and reduce the cost, which is conducive to reducing the overall manufacturing cost of the antenna assembly 24.

[0055] It should be noted that this embodiment does not limit the execution order of steps S110 and S120. Step S110 can be executed first and then step S120 can be executed, or step S120 can be executed first and then step S110 can be executed, or steps S110 and S120 can be executed simultaneously.

[0056] Step S130: Embed the radiating part 110 into the mounting groove 232, and fix the pressure plate bracket 200 to the middle frame 21.

[0057] The fabrication method of the entire antenna assembly 24 is simple and does not require CNC machining or other processes, which significantly shortens the fabrication time, reduces the number of process steps, and lowers costs. Furthermore, when the antenna assembly 24 is applied to the electronic device 10, the net space gap between the display screen 30 and the antenna assembly 24 can be smaller, resulting in a smaller "black border" and an increased screen-to-body ratio of the display screen 30.

[0058] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An antenna assembly, characterized in that, include: The middle frame includes a non-metallic bezel and a middle plate. The middle plate has a first side for mounting a display screen and a second side opposite to the first side. The non-metallic bezel surrounds the edge of the middle plate and is provided with a mounting groove. The non-metallic bezel includes an inner wall forming the mounting groove. The inner wall includes a first inner wall and a second inner wall opposite to each other. The distance between the first inner wall and the second inner wall gradually decreases from the second side toward the first side. The mounting groove has an opening, and the opening of the mounting groove faces toward the rear shell of the electronic device. Pressure plate bracket, the pressure plate bracket being fixed to the middle frame; as well as The radiator includes a radiating part and a connecting part, the connecting part connecting the radiating part, the end of the radiating part closer to the first side being thinner than the end closer to the second side, and is integrally injection molded with the pressure plate bracket, the radiating part being at least partially embedded in the mounting groove.

2. The antenna assembly according to claim 1, characterized in that, The radiator is at least partially embedded in the mounting groove, and the connecting portion connects to the radiator and is bent relative to the radiator.

3. The antenna assembly according to claim 1, characterized in that, The non-metallic frame has an inner surface, the middle plate is connected to the inner surface, and the mounting groove is formed on the inner surface.

4. The antenna assembly according to any one of claims 1-3, characterized in that, The radiating part and the connecting part are integrally combined.

5. The antenna assembly according to claim 4, characterized in that, The radiating part and the connecting part are integrally formed by die casting.

6. The antenna assembly according to any one of claims 1-3, characterized in that, The antenna assembly also includes an antenna bracket, which is disposed on the middle plate and electrically connected to the radiator.

7. A housing assembly, characterized in that, include: The antenna assembly as described in any one of claims 1-6; Front housing, which is fitted onto the non-metallic frame; as well as The rear shell is fitted onto the non-metallic frame, and the front shell and the rear shell are located on opposite sides of the middle plate.

8. An electronic device, characterized in that, include: The housing assembly as described in claim 7; A metal sheet, the metal sheet being disposed on the middle plate, and The display screen is mounted on the front shell and is correspondingly arranged with respect to the metal sheet.

9. The electronic device according to claim 8, characterized in that, The distance between the outer edge of the display screen and the outer edge of the radiating part is less than 1 mm.

10. A method for fabricating an antenna assembly, characterized in that, include: A mid-frame is formed, the mid-frame including a non-metallic frame and a mid-plate, the mid-plate having a first side for mounting a display screen and a second side opposite to the first side, the non-metallic frame surrounding the edge of the mid-plate, the non-metallic frame having a mounting groove, the non-metallic frame including an inner wall forming the mounting groove, the inner wall including a first inner wall and a second inner wall opposite to each other, the distance between the first inner wall and the second inner wall gradually decreasing from the second side toward the first side, the mounting groove having an opening, the opening of the mounting groove facing toward the rear shell of the electronic device; A radiator is formed, the radiator including a radiating portion and a connecting portion, a pressure plate bracket being integrally injection molded onto the connecting portion, the end of the radiating portion near the first side being thinner than the end near the second side; and The radiating part is embedded in the mounting groove, and the pressure plate bracket is fixed to the middle frame.

11. The method according to claim 10, characterized in that, The radiator is formed by integral die casting.

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